[5] | 1 | /* |
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| 2 | * tclExecute.c -- |
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| 3 | * |
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| 4 | * This file contains procedures that execute byte-compiled Tcl |
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| 5 | * commands. |
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| 6 | * |
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| 7 | * Copyright (c) 1996-1997 Sun Microsystems, Inc. |
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| 8 | * |
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| 9 | * See the file "license.terms" for information on usage and redistribution |
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| 10 | * of this file, and for a DISCLAIMER OF ALL WARRANTIES. |
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| 11 | * |
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| 12 | * RCS: @(#) $Id: tclExecute.c,v 1.1 2008-06-04 13:58:06 demin Exp $ |
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| 13 | */ |
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| 14 | |
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| 15 | #include "tclInt.h" |
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| 16 | #include "tclCompile.h" |
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| 17 | |
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| 18 | #ifdef NO_FLOAT_H |
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| 19 | # include "../compat/float.h" |
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| 20 | #else |
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| 21 | # include <float.h> |
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| 22 | #endif |
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| 23 | #ifndef TCL_NO_MATH |
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| 24 | #include "tclMath.h" |
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| 25 | #endif |
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| 26 | |
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| 27 | /* |
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| 28 | * The stuff below is a bit of a hack so that this file can be used |
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| 29 | * in environments that include no UNIX, i.e. no errno. Just define |
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| 30 | * errno here. |
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| 31 | */ |
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| 32 | |
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| 33 | #ifndef TCL_GENERIC_ONLY |
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| 34 | #include "tclPort.h" |
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| 35 | #else |
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| 36 | #define NO_ERRNO_H |
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| 37 | #endif |
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| 38 | |
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| 39 | #ifdef NO_ERRNO_H |
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| 40 | int errno; |
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| 41 | #define EDOM 33 |
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| 42 | #define ERANGE 34 |
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| 43 | #endif |
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| 44 | |
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| 45 | /* |
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| 46 | * Boolean flag indicating whether the Tcl bytecode interpreter has been |
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| 47 | * initialized. |
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| 48 | */ |
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| 49 | |
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| 50 | static int execInitialized = 0; |
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| 51 | |
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| 52 | /* |
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| 53 | * Variable that controls whether execution tracing is enabled and, if so, |
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| 54 | * what level of tracing is desired: |
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| 55 | * 0: no execution tracing |
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| 56 | * 1: trace invocations of Tcl procs only |
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| 57 | * 2: trace invocations of all (not compiled away) commands |
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| 58 | * 3: display each instruction executed |
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| 59 | * This variable is linked to the Tcl variable "tcl_traceExec". |
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| 60 | */ |
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| 61 | |
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| 62 | int tclTraceExec = 0; |
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| 63 | |
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| 64 | /* |
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| 65 | * The following global variable is use to signal matherr that Tcl |
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| 66 | * is responsible for the arithmetic, so errors can be handled in a |
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| 67 | * fashion appropriate for Tcl. Zero means no Tcl math is in |
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| 68 | * progress; non-zero means Tcl is doing math. |
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| 69 | */ |
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| 70 | |
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| 71 | int tcl_MathInProgress = 0; |
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| 72 | |
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| 73 | /* |
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| 74 | * The variable below serves no useful purpose except to generate |
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| 75 | * a reference to matherr, so that the Tcl version of matherr is |
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| 76 | * linked in rather than the system version. Without this reference |
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| 77 | * the need for matherr won't be discovered during linking until after |
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| 78 | * libtcl.a has been processed, so Tcl's version won't be used. |
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| 79 | */ |
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| 80 | |
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| 81 | #ifdef NEED_MATHERR |
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| 82 | extern int matherr(); |
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| 83 | int (*tclMatherrPtr)() = matherr; |
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| 84 | #endif |
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| 85 | |
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| 86 | /* |
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| 87 | * Array of instruction names. |
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| 88 | */ |
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| 89 | |
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| 90 | static char *opName[256]; |
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| 91 | |
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| 92 | /* |
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| 93 | * Mapping from expression instruction opcodes to strings; used for error |
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| 94 | * messages. Note that these entries must match the order and number of the |
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| 95 | * expression opcodes (e.g., INST_LOR) in tclCompile.h. |
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| 96 | */ |
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| 97 | |
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| 98 | static char *operatorStrings[] = { |
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| 99 | "||", "&&", "|", "^", "&", "==", "!=", "<", ">", "<=", ">=", "<<", ">>", |
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| 100 | "+", "-", "*", "/", "%", "+", "-", "~", "!", |
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| 101 | "BUILTIN FUNCTION", "FUNCTION" |
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| 102 | }; |
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| 103 | |
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| 104 | /* |
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| 105 | * Mapping from Tcl result codes to strings; used for error and debugging |
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| 106 | * messages. |
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| 107 | */ |
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| 108 | |
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| 109 | #ifdef TCL_COMPILE_DEBUG |
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| 110 | static char *resultStrings[] = { |
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| 111 | "TCL_OK", "TCL_ERROR", "TCL_RETURN", "TCL_BREAK", "TCL_CONTINUE" |
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| 112 | }; |
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| 113 | #endif /* TCL_COMPILE_DEBUG */ |
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| 114 | |
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| 115 | /* |
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| 116 | * The following are statistics-related variables that record information |
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| 117 | * about the bytecode compiler and interpreter's operation. This includes |
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| 118 | * an array that records for each instruction how often it is executed. |
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| 119 | */ |
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| 120 | |
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| 121 | #ifdef TCL_COMPILE_STATS |
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| 122 | static long numExecutions = 0; |
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| 123 | static int instructionCount[256]; |
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| 124 | #endif /* TCL_COMPILE_STATS */ |
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| 125 | |
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| 126 | /* |
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| 127 | * Macros for testing floating-point values for certain special cases. Test |
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| 128 | * for not-a-number by comparing a value against itself; test for infinity |
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| 129 | * by comparing against the largest floating-point value. |
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| 130 | */ |
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| 131 | |
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| 132 | #define IS_NAN(v) ((v) != (v)) |
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| 133 | #ifdef DBL_MAX |
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| 134 | # define IS_INF(v) (((v) > DBL_MAX) || ((v) < -DBL_MAX)) |
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| 135 | #else |
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| 136 | # define IS_INF(v) 0 |
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| 137 | #endif |
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| 138 | |
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| 139 | /* |
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| 140 | * Macro to adjust the program counter and restart the instruction execution |
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| 141 | * loop after each instruction is executed. |
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| 142 | */ |
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| 143 | |
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| 144 | #define ADJUST_PC(instBytes) \ |
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| 145 | pc += instBytes; continue |
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| 146 | |
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| 147 | /* |
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| 148 | * Macros used to cache often-referenced Tcl evaluation stack information |
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| 149 | * in local variables. Note that a DECACHE_STACK_INFO()-CACHE_STACK_INFO() |
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| 150 | * pair must surround any call inside TclExecuteByteCode (and a few other |
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| 151 | * procedures that use this scheme) that could result in a recursive call |
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| 152 | * to TclExecuteByteCode. |
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| 153 | */ |
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| 154 | |
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| 155 | #define CACHE_STACK_INFO() \ |
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| 156 | stackPtr = eePtr->stackPtr; \ |
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| 157 | stackTop = eePtr->stackTop |
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| 158 | |
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| 159 | #define DECACHE_STACK_INFO() \ |
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| 160 | eePtr->stackTop = stackTop |
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| 161 | |
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| 162 | /* |
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| 163 | * Macros used to access items on the Tcl evaluation stack. PUSH_OBJECT |
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| 164 | * increments the object's ref count since it makes the stack have another |
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| 165 | * reference pointing to the object. However, POP_OBJECT does not decrement |
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| 166 | * the ref count. This is because the stack may hold the only reference to |
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| 167 | * the object, so the object would be destroyed if its ref count were |
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| 168 | * decremented before the caller had a chance to, e.g., store it in a |
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| 169 | * variable. It is the caller's responsibility to decrement the ref count |
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| 170 | * when it is finished with an object. |
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| 171 | */ |
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| 172 | |
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| 173 | #define STK_ITEM(offset) (stackPtr[stackTop + (offset)]) |
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| 174 | #define STK_OBJECT(offset) (STK_ITEM(offset).o) |
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| 175 | #define STK_INT(offset) (STK_ITEM(offset).i) |
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| 176 | #define STK_POINTER(offset) (STK_ITEM(offset).p) |
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| 177 | |
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| 178 | /* |
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| 179 | * WARNING! It is essential that objPtr only appear once in the PUSH_OBJECT |
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| 180 | * macro. The actual parameter might be an expression with side effects, |
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| 181 | * and this ensures that it will be executed only once. |
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| 182 | */ |
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| 183 | |
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| 184 | #define PUSH_OBJECT(objPtr) \ |
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| 185 | Tcl_IncrRefCount(stackPtr[++stackTop].o = (objPtr)) |
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| 186 | |
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| 187 | #define POP_OBJECT() \ |
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| 188 | (stackPtr[stackTop--].o) |
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| 189 | |
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| 190 | /* |
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| 191 | * Macros used to trace instruction execution. The macros TRACE, |
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| 192 | * TRACE_WITH_OBJ, and O2S are only used inside TclExecuteByteCode. |
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| 193 | * O2S is only used in TRACE* calls to get a string from an object. |
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| 194 | * |
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| 195 | * NOTE THAT CLIENTS OF O2S ARE LIKELY TO FAIL IF THE OBJECT'S |
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| 196 | * STRING REP CONTAINS NULLS. |
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| 197 | */ |
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| 198 | |
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| 199 | #ifdef TCL_COMPILE_DEBUG |
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| 200 | |
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| 201 | #define O2S(objPtr) \ |
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| 202 | Tcl_GetStringFromObj((objPtr), &length) |
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| 203 | |
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| 204 | #ifdef TCL_COMPILE_STATS |
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| 205 | #define TRACE(a) \ |
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| 206 | if (traceInstructions) { \ |
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| 207 | fprintf(stdout, "%d: %d,%ld (%u) ", iPtr->numLevels, \ |
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| 208 | stackTop, (tclObjsAlloced - tclObjsFreed), \ |
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| 209 | (unsigned int)(pc - codePtr->codeStart)); \ |
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| 210 | printf a; \ |
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| 211 | fflush(stdout); \ |
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| 212 | } |
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| 213 | #define TRACE_WITH_OBJ(a, objPtr) \ |
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| 214 | if (traceInstructions) { \ |
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| 215 | fprintf(stdout, "%d: %d,%ld (%u) ", iPtr->numLevels, \ |
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| 216 | stackTop, (tclObjsAlloced - tclObjsFreed), \ |
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| 217 | (unsigned int)(pc - codePtr->codeStart)); \ |
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| 218 | printf a; \ |
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| 219 | bytes = Tcl_GetStringFromObj((objPtr), &length); \ |
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| 220 | TclPrintSource(stdout, bytes, TclMin(length, 30)); \ |
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| 221 | fprintf(stdout, "\n"); \ |
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| 222 | fflush(stdout); \ |
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| 223 | } |
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| 224 | #else /* not TCL_COMPILE_STATS */ |
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| 225 | #define TRACE(a) \ |
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| 226 | if (traceInstructions) { \ |
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| 227 | fprintf(stdout, "%d: %d (%u) ", iPtr->numLevels, stackTop, \ |
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| 228 | (unsigned int)(pc - codePtr->codeStart)); \ |
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| 229 | printf a; \ |
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| 230 | fflush(stdout); \ |
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| 231 | } |
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| 232 | #define TRACE_WITH_OBJ(a, objPtr) \ |
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| 233 | if (traceInstructions) { \ |
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| 234 | fprintf(stdout, "%d: %d (%u) ", iPtr->numLevels, stackTop, \ |
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| 235 | (unsigned int)(pc - codePtr->codeStart)); \ |
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| 236 | printf a; \ |
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| 237 | bytes = Tcl_GetStringFromObj((objPtr), &length); \ |
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| 238 | TclPrintSource(stdout, bytes, TclMin(length, 30)); \ |
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| 239 | fprintf(stdout, "\n"); \ |
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| 240 | fflush(stdout); \ |
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| 241 | } |
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| 242 | #endif /* TCL_COMPILE_STATS */ |
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| 243 | |
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| 244 | #else /* not TCL_COMPILE_DEBUG */ |
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| 245 | |
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| 246 | #define TRACE(a) |
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| 247 | #define TRACE_WITH_OBJ(a, objPtr) |
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| 248 | #define O2S(objPtr) |
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| 249 | |
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| 250 | #endif /* TCL_COMPILE_DEBUG */ |
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| 251 | |
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| 252 | /* |
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| 253 | * Declarations for local procedures to this file: |
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| 254 | */ |
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| 255 | |
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| 256 | static void CallTraceProcedure _ANSI_ARGS_((Tcl_Interp *interp, |
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| 257 | Trace *tracePtr, Command *cmdPtr, |
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| 258 | char *command, int numChars, |
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| 259 | int objc, Tcl_Obj *objv[])); |
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| 260 | static void DupCmdNameInternalRep _ANSI_ARGS_((Tcl_Obj *objPtr, |
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| 261 | Tcl_Obj *copyPtr)); |
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| 262 | static int ExprAbsFunc _ANSI_ARGS_((Tcl_Interp *interp, |
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| 263 | ExecEnv *eePtr, ClientData clientData)); |
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| 264 | static int ExprBinaryFunc _ANSI_ARGS_((Tcl_Interp *interp, |
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| 265 | ExecEnv *eePtr, ClientData clientData)); |
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| 266 | static int ExprCallMathFunc _ANSI_ARGS_((Tcl_Interp *interp, |
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| 267 | ExecEnv *eePtr, int objc, Tcl_Obj **objv)); |
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| 268 | static int ExprDoubleFunc _ANSI_ARGS_((Tcl_Interp *interp, |
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| 269 | ExecEnv *eePtr, ClientData clientData)); |
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| 270 | static int ExprIntFunc _ANSI_ARGS_((Tcl_Interp *interp, |
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| 271 | ExecEnv *eePtr, ClientData clientData)); |
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| 272 | static int ExprRoundFunc _ANSI_ARGS_((Tcl_Interp *interp, |
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| 273 | ExecEnv *eePtr, ClientData clientData)); |
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| 274 | static int ExprUnaryFunc _ANSI_ARGS_((Tcl_Interp *interp, |
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| 275 | ExecEnv *eePtr, ClientData clientData)); |
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| 276 | #ifdef TCL_COMPILE_STATS |
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| 277 | static int EvalStatsCmd _ANSI_ARGS_((ClientData clientData, |
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| 278 | Tcl_Interp *interp, int argc, char **argv)); |
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| 279 | #endif /* TCL_COMPILE_STATS */ |
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| 280 | static void FreeCmdNameInternalRep _ANSI_ARGS_(( |
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| 281 | Tcl_Obj *objPtr)); |
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| 282 | static char * GetSrcInfoForPc _ANSI_ARGS_((unsigned char *pc, |
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| 283 | ByteCode* codePtr, int *lengthPtr)); |
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| 284 | static void GrowEvaluationStack _ANSI_ARGS_((ExecEnv *eePtr)); |
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| 285 | static void IllegalExprOperandType _ANSI_ARGS_(( |
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| 286 | Tcl_Interp *interp, unsigned int opCode, |
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| 287 | Tcl_Obj *opndPtr)); |
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| 288 | static void InitByteCodeExecution _ANSI_ARGS_(( |
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| 289 | Tcl_Interp *interp)); |
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| 290 | static void PrintByteCodeInfo _ANSI_ARGS_((ByteCode *codePtr)); |
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| 291 | static void RecordTracebackInfo _ANSI_ARGS_((Tcl_Interp *interp, |
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| 292 | unsigned char *pc, ByteCode *codePtr)); |
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| 293 | static int SetCmdNameFromAny _ANSI_ARGS_((Tcl_Interp *interp, |
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| 294 | Tcl_Obj *objPtr)); |
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| 295 | #ifdef TCL_COMPILE_DEBUG |
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| 296 | static char * StringForResultCode _ANSI_ARGS_((int result)); |
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| 297 | #endif /* TCL_COMPILE_DEBUG */ |
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| 298 | static void UpdateStringOfCmdName _ANSI_ARGS_((Tcl_Obj *objPtr)); |
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| 299 | #ifdef TCL_COMPILE_DEBUG |
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| 300 | static void ValidatePcAndStackTop _ANSI_ARGS_(( |
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| 301 | ByteCode *codePtr, unsigned char *pc, |
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| 302 | int stackTop, int stackLowerBound, |
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| 303 | int stackUpperBound)); |
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| 304 | #endif /* TCL_COMPILE_DEBUG */ |
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| 305 | |
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| 306 | /* |
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| 307 | * Table describing the built-in math functions. Entries in this table are |
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| 308 | * indexed by the values of the INST_CALL_BUILTIN_FUNC instruction's |
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| 309 | * operand byte. |
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| 310 | */ |
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| 311 | |
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| 312 | BuiltinFunc builtinFuncTable[] = { |
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| 313 | #ifndef TCL_NO_MATH |
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| 314 | {"acos", 1, {TCL_DOUBLE}, ExprUnaryFunc, (ClientData) acos}, |
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| 315 | {"asin", 1, {TCL_DOUBLE}, ExprUnaryFunc, (ClientData) asin}, |
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| 316 | {"atan", 1, {TCL_DOUBLE}, ExprUnaryFunc, (ClientData) atan}, |
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| 317 | {"atan2", 2, {TCL_DOUBLE, TCL_DOUBLE}, ExprBinaryFunc, (ClientData) atan2}, |
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| 318 | {"ceil", 1, {TCL_DOUBLE}, ExprUnaryFunc, (ClientData) ceil}, |
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| 319 | {"cos", 1, {TCL_DOUBLE}, ExprUnaryFunc, (ClientData) cos}, |
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| 320 | {"cosh", 1, {TCL_DOUBLE}, ExprUnaryFunc, (ClientData) cosh}, |
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| 321 | {"exp", 1, {TCL_DOUBLE}, ExprUnaryFunc, (ClientData) exp}, |
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| 322 | {"floor", 1, {TCL_DOUBLE}, ExprUnaryFunc, (ClientData) floor}, |
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| 323 | {"fmod", 2, {TCL_DOUBLE, TCL_DOUBLE}, ExprBinaryFunc, (ClientData) fmod}, |
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| 324 | {"hypot", 2, {TCL_DOUBLE, TCL_DOUBLE}, ExprBinaryFunc, (ClientData) hypot}, |
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| 325 | {"log", 1, {TCL_DOUBLE}, ExprUnaryFunc, (ClientData) log}, |
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| 326 | {"log10", 1, {TCL_DOUBLE}, ExprUnaryFunc, (ClientData) log10}, |
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| 327 | {"pow", 2, {TCL_DOUBLE, TCL_DOUBLE}, ExprBinaryFunc, (ClientData) pow}, |
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| 328 | {"sin", 1, {TCL_DOUBLE}, ExprUnaryFunc, (ClientData) sin}, |
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| 329 | {"sinh", 1, {TCL_DOUBLE}, ExprUnaryFunc, (ClientData) sinh}, |
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| 330 | {"sqrt", 1, {TCL_DOUBLE}, ExprUnaryFunc, (ClientData) sqrt}, |
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| 331 | {"tan", 1, {TCL_DOUBLE}, ExprUnaryFunc, (ClientData) tan}, |
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| 332 | {"tanh", 1, {TCL_DOUBLE}, ExprUnaryFunc, (ClientData) tanh}, |
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| 333 | #endif |
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| 334 | {"abs", 1, {TCL_EITHER}, ExprAbsFunc, 0}, |
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| 335 | {"double", 1, {TCL_EITHER}, ExprDoubleFunc, 0}, |
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| 336 | {"int", 1, {TCL_EITHER}, ExprIntFunc, 0}, |
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| 337 | {"round", 1, {TCL_EITHER}, ExprRoundFunc, 0}, |
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| 338 | {0}, |
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| 339 | }; |
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| 340 | |
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| 341 | /* |
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| 342 | * The structure below defines the command name Tcl object type by means of |
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| 343 | * procedures that can be invoked by generic object code. Objects of this |
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| 344 | * type cache the Command pointer that results from looking up command names |
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| 345 | * in the command hashtable. Such objects appear as the zeroth ("command |
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| 346 | * name") argument in a Tcl command. |
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| 347 | */ |
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| 348 | |
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| 349 | Tcl_ObjType tclCmdNameType = { |
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| 350 | "cmdName", /* name */ |
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| 351 | FreeCmdNameInternalRep, /* freeIntRepProc */ |
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| 352 | DupCmdNameInternalRep, /* dupIntRepProc */ |
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| 353 | UpdateStringOfCmdName, /* updateStringProc */ |
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| 354 | SetCmdNameFromAny /* setFromAnyProc */ |
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| 355 | }; |
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| 356 | |
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| 357 | /* |
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| 358 | *---------------------------------------------------------------------- |
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| 359 | * |
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| 360 | * InitByteCodeExecution -- |
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| 361 | * |
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| 362 | * This procedure is called once to initialize the Tcl bytecode |
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| 363 | * interpreter. |
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| 364 | * |
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| 365 | * Results: |
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| 366 | * None. |
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| 367 | * |
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| 368 | * Side effects: |
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| 369 | * This procedure initializes the array of instruction names. If |
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| 370 | * compiling with the TCL_COMPILE_STATS flag, it initializes the |
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| 371 | * array that counts the executions of each instruction and it |
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| 372 | * creates the "evalstats" command. It also registers the command name |
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| 373 | * Tcl_ObjType. It also establishes the link between the Tcl |
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| 374 | * "tcl_traceExec" and C "tclTraceExec" variables. |
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| 375 | * |
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| 376 | *---------------------------------------------------------------------- |
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| 377 | */ |
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| 378 | |
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| 379 | static void |
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| 380 | InitByteCodeExecution(interp) |
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| 381 | Tcl_Interp *interp; /* Interpreter for which the Tcl variable |
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| 382 | * "tcl_traceExec" is linked to control |
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| 383 | * instruction tracing. */ |
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| 384 | { |
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| 385 | int i; |
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| 386 | |
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| 387 | Tcl_RegisterObjType(&tclCmdNameType); |
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| 388 | |
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| 389 | (VOID *) memset(opName, 0, sizeof(opName)); |
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| 390 | for (i = 0; instructionTable[i].name != NULL; i++) { |
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| 391 | opName[i] = instructionTable[i].name; |
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| 392 | } |
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| 393 | |
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| 394 | #ifdef TCL_COMPILE_STATS |
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| 395 | (VOID *) memset(instructionCount, 0, sizeof(instructionCount)); |
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| 396 | (VOID *) memset(tclByteCodeCount, 0, sizeof(tclByteCodeCount)); |
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| 397 | (VOID *) memset(tclSourceCount, 0, sizeof(tclSourceCount)); |
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| 398 | |
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| 399 | Tcl_CreateCommand(interp, "evalstats", EvalStatsCmd, |
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| 400 | (ClientData) NULL, (Tcl_CmdDeleteProc *) NULL); |
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| 401 | #endif /* TCL_COMPILE_STATS */ |
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| 402 | |
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| 403 | if (Tcl_LinkVar(interp, "tcl_traceExec", (char *) &tclTraceExec, |
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| 404 | TCL_LINK_INT) != TCL_OK) { |
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| 405 | panic("InitByteCodeExecution: can't create link for tcl_traceExec variable"); |
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| 406 | } |
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| 407 | } |
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| 408 | |
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| 409 | /* |
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| 410 | *---------------------------------------------------------------------- |
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| 411 | * |
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| 412 | * TclCreateExecEnv -- |
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| 413 | * |
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| 414 | * This procedure creates a new execution environment for Tcl bytecode |
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| 415 | * execution. An ExecEnv points to a Tcl evaluation stack. An ExecEnv |
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| 416 | * is typically created once for each Tcl interpreter (Interp |
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| 417 | * structure) and recursively passed to TclExecuteByteCode to execute |
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| 418 | * ByteCode sequences for nested commands. |
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| 419 | * |
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| 420 | * Results: |
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| 421 | * A newly allocated ExecEnv is returned. This points to an empty |
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| 422 | * evaluation stack of the standard initial size. |
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| 423 | * |
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| 424 | * Side effects: |
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| 425 | * The bytecode interpreter is also initialized here, as this |
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| 426 | * procedure will be called before any call to TclExecuteByteCode. |
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| 427 | * |
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| 428 | *---------------------------------------------------------------------- |
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| 429 | */ |
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| 430 | |
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| 431 | #define TCL_STACK_INITIAL_SIZE 2000 |
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| 432 | |
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| 433 | ExecEnv * |
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| 434 | TclCreateExecEnv(interp) |
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| 435 | Tcl_Interp *interp; /* Interpreter for which the execution |
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| 436 | * environment is being created. */ |
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| 437 | { |
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| 438 | ExecEnv *eePtr = (ExecEnv *) ckalloc(sizeof(ExecEnv)); |
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| 439 | |
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| 440 | eePtr->stackPtr = (StackItem *) |
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| 441 | ckalloc((unsigned) (TCL_STACK_INITIAL_SIZE * sizeof(StackItem))); |
---|
| 442 | eePtr->stackTop = -1; |
---|
| 443 | eePtr->stackEnd = (TCL_STACK_INITIAL_SIZE - 1); |
---|
| 444 | |
---|
| 445 | if (!execInitialized) { |
---|
| 446 | TclInitAuxDataTypeTable(); |
---|
| 447 | InitByteCodeExecution(interp); |
---|
| 448 | execInitialized = 1; |
---|
| 449 | } |
---|
| 450 | |
---|
| 451 | return eePtr; |
---|
| 452 | } |
---|
| 453 | #undef TCL_STACK_INITIAL_SIZE |
---|
| 454 | |
---|
| 455 | /* |
---|
| 456 | *---------------------------------------------------------------------- |
---|
| 457 | * |
---|
| 458 | * TclDeleteExecEnv -- |
---|
| 459 | * |
---|
| 460 | * Frees the storage for an ExecEnv. |
---|
| 461 | * |
---|
| 462 | * Results: |
---|
| 463 | * None. |
---|
| 464 | * |
---|
| 465 | * Side effects: |
---|
| 466 | * Storage for an ExecEnv and its contained storage (e.g. the |
---|
| 467 | * evaluation stack) is freed. |
---|
| 468 | * |
---|
| 469 | *---------------------------------------------------------------------- |
---|
| 470 | */ |
---|
| 471 | |
---|
| 472 | void |
---|
| 473 | TclDeleteExecEnv(eePtr) |
---|
| 474 | ExecEnv *eePtr; /* Execution environment to free. */ |
---|
| 475 | { |
---|
| 476 | ckfree((char *) eePtr->stackPtr); |
---|
| 477 | ckfree((char *) eePtr); |
---|
| 478 | } |
---|
| 479 | |
---|
| 480 | /* |
---|
| 481 | *---------------------------------------------------------------------- |
---|
| 482 | * |
---|
| 483 | * TclFinalizeExecEnv -- |
---|
| 484 | * |
---|
| 485 | * Finalizes the execution environment setup so that it can be |
---|
| 486 | * later reinitialized. |
---|
| 487 | * |
---|
| 488 | * Results: |
---|
| 489 | * None. |
---|
| 490 | * |
---|
| 491 | * Side effects: |
---|
| 492 | * After this call, the next time TclCreateExecEnv will be called |
---|
| 493 | * it will call InitByteCodeExecution. |
---|
| 494 | * |
---|
| 495 | *---------------------------------------------------------------------- |
---|
| 496 | */ |
---|
| 497 | |
---|
| 498 | void |
---|
| 499 | TclFinalizeExecEnv() |
---|
| 500 | { |
---|
| 501 | execInitialized = 0; |
---|
| 502 | TclFinalizeAuxDataTypeTable(); |
---|
| 503 | } |
---|
| 504 | |
---|
| 505 | /* |
---|
| 506 | *---------------------------------------------------------------------- |
---|
| 507 | * |
---|
| 508 | * GrowEvaluationStack -- |
---|
| 509 | * |
---|
| 510 | * This procedure grows a Tcl evaluation stack stored in an ExecEnv. |
---|
| 511 | * |
---|
| 512 | * Results: |
---|
| 513 | * None. |
---|
| 514 | * |
---|
| 515 | * Side effects: |
---|
| 516 | * The size of the evaluation stack is doubled. |
---|
| 517 | * |
---|
| 518 | *---------------------------------------------------------------------- |
---|
| 519 | */ |
---|
| 520 | |
---|
| 521 | static void |
---|
| 522 | GrowEvaluationStack(eePtr) |
---|
| 523 | register ExecEnv *eePtr; /* Points to the ExecEnv with an evaluation |
---|
| 524 | * stack to enlarge. */ |
---|
| 525 | { |
---|
| 526 | /* |
---|
| 527 | * The current Tcl stack elements are stored from eePtr->stackPtr[0] |
---|
| 528 | * to eePtr->stackPtr[eePtr->stackEnd] (inclusive). |
---|
| 529 | */ |
---|
| 530 | |
---|
| 531 | int currElems = (eePtr->stackEnd + 1); |
---|
| 532 | int newElems = 2*currElems; |
---|
| 533 | int currBytes = currElems * sizeof(StackItem); |
---|
| 534 | int newBytes = 2*currBytes; |
---|
| 535 | StackItem *newStackPtr = (StackItem *) ckalloc((unsigned) newBytes); |
---|
| 536 | |
---|
| 537 | /* |
---|
| 538 | * Copy the existing stack items to the new stack space, free the old |
---|
| 539 | * storage if appropriate, and mark new space as malloc'ed. |
---|
| 540 | */ |
---|
| 541 | |
---|
| 542 | memcpy((VOID *) newStackPtr, (VOID *) eePtr->stackPtr, |
---|
| 543 | (size_t) currBytes); |
---|
| 544 | ckfree((char *) eePtr->stackPtr); |
---|
| 545 | eePtr->stackPtr = newStackPtr; |
---|
| 546 | eePtr->stackEnd = (newElems - 1); /* i.e. index of last usable item */ |
---|
| 547 | } |
---|
| 548 | |
---|
| 549 | /* |
---|
| 550 | *---------------------------------------------------------------------- |
---|
| 551 | * |
---|
| 552 | * TclExecuteByteCode -- |
---|
| 553 | * |
---|
| 554 | * This procedure executes the instructions of a ByteCode structure. |
---|
| 555 | * It returns when a "done" instruction is executed or an error occurs. |
---|
| 556 | * |
---|
| 557 | * Results: |
---|
| 558 | * The return value is one of the return codes defined in tcl.h |
---|
| 559 | * (such as TCL_OK), and interp->objResultPtr refers to a Tcl object |
---|
| 560 | * that either contains the result of executing the code or an |
---|
| 561 | * error message. |
---|
| 562 | * |
---|
| 563 | * Side effects: |
---|
| 564 | * Almost certainly, depending on the ByteCode's instructions. |
---|
| 565 | * |
---|
| 566 | *---------------------------------------------------------------------- |
---|
| 567 | */ |
---|
| 568 | |
---|
| 569 | int |
---|
| 570 | TclExecuteByteCode(interp, codePtr) |
---|
| 571 | Tcl_Interp *interp; /* Token for command interpreter. */ |
---|
| 572 | ByteCode *codePtr; /* The bytecode sequence to interpret. */ |
---|
| 573 | { |
---|
| 574 | Interp *iPtr = (Interp *) interp; |
---|
| 575 | ExecEnv *eePtr = iPtr->execEnvPtr; |
---|
| 576 | /* Points to the execution environment. */ |
---|
| 577 | register StackItem *stackPtr = eePtr->stackPtr; |
---|
| 578 | /* Cached evaluation stack base pointer. */ |
---|
| 579 | register int stackTop = eePtr->stackTop; |
---|
| 580 | /* Cached top index of evaluation stack. */ |
---|
| 581 | Tcl_Obj **objArrayPtr = codePtr->objArrayPtr; |
---|
| 582 | /* Points to the ByteCode's object array. */ |
---|
| 583 | unsigned char *pc = codePtr->codeStart; |
---|
| 584 | /* The current program counter. */ |
---|
| 585 | unsigned char opCode; /* The current instruction code. */ |
---|
| 586 | int opnd; /* Current instruction's operand byte. */ |
---|
| 587 | int pcAdjustment; /* Hold pc adjustment after instruction. */ |
---|
| 588 | int initStackTop = stackTop;/* Stack top at start of execution. */ |
---|
| 589 | ExceptionRange *rangePtr; /* Points to closest loop or catch exception |
---|
| 590 | * range enclosing the pc. Used by various |
---|
| 591 | * instructions and processCatch to |
---|
| 592 | * process break, continue, and errors. */ |
---|
| 593 | int result = TCL_OK; /* Return code returned after execution. */ |
---|
| 594 | int traceInstructions = (tclTraceExec == 3); |
---|
| 595 | Tcl_Obj *valuePtr, *value2Ptr, *namePtr, *objPtr; |
---|
| 596 | char *bytes; |
---|
| 597 | int length; |
---|
| 598 | long i; |
---|
| 599 | Tcl_DString command; /* Used for debugging. If tclTraceExec >= 2 |
---|
| 600 | * holds a string representing the last |
---|
| 601 | * command invoked. */ |
---|
| 602 | |
---|
| 603 | /* |
---|
| 604 | * This procedure uses a stack to hold information about catch commands. |
---|
| 605 | * This information is the current operand stack top when starting to |
---|
| 606 | * execute the code for each catch command. It starts out with stack- |
---|
| 607 | * allocated space but uses dynamically-allocated storage if needed. |
---|
| 608 | */ |
---|
| 609 | |
---|
| 610 | #define STATIC_CATCH_STACK_SIZE 5 |
---|
| 611 | int (catchStackStorage[STATIC_CATCH_STACK_SIZE]); |
---|
| 612 | int *catchStackPtr = catchStackStorage; |
---|
| 613 | int catchTop = -1; |
---|
| 614 | |
---|
| 615 | /* |
---|
| 616 | * THIS PROC FAILS IF AN OBJECT'S STRING REP HAS A NULL BYTE. |
---|
| 617 | */ |
---|
| 618 | |
---|
| 619 | if (tclTraceExec >= 2) { |
---|
| 620 | PrintByteCodeInfo(codePtr); |
---|
| 621 | #ifdef TCL_COMPILE_STATS |
---|
| 622 | fprintf(stdout, " Starting stack top=%d, system objects=%ld\n", |
---|
| 623 | eePtr->stackTop, (tclObjsAlloced - tclObjsFreed)); |
---|
| 624 | #else |
---|
| 625 | fprintf(stdout, " Starting stack top=%d\n", eePtr->stackTop); |
---|
| 626 | #endif /* TCL_COMPILE_STATS */ |
---|
| 627 | fflush(stdout); |
---|
| 628 | } |
---|
| 629 | |
---|
| 630 | #ifdef TCL_COMPILE_STATS |
---|
| 631 | numExecutions++; |
---|
| 632 | #endif /* TCL_COMPILE_STATS */ |
---|
| 633 | |
---|
| 634 | /* |
---|
| 635 | * Make sure the catch stack is large enough to hold the maximum number |
---|
| 636 | * of catch commands that could ever be executing at the same time. This |
---|
| 637 | * will be no more than the exception range array's depth. |
---|
| 638 | */ |
---|
| 639 | |
---|
| 640 | if (codePtr->maxExcRangeDepth > STATIC_CATCH_STACK_SIZE) { |
---|
| 641 | catchStackPtr = (int *) |
---|
| 642 | ckalloc(codePtr->maxExcRangeDepth * sizeof(int)); |
---|
| 643 | } |
---|
| 644 | |
---|
| 645 | /* |
---|
| 646 | * Make sure the stack has enough room to execute this ByteCode. |
---|
| 647 | */ |
---|
| 648 | |
---|
| 649 | while ((stackTop + codePtr->maxStackDepth) > eePtr->stackEnd) { |
---|
| 650 | GrowEvaluationStack(eePtr); |
---|
| 651 | stackPtr = eePtr->stackPtr; |
---|
| 652 | } |
---|
| 653 | |
---|
| 654 | /* |
---|
| 655 | * Initialize the buffer that holds a string containing the name and |
---|
| 656 | * arguments for the last invoked command. |
---|
| 657 | */ |
---|
| 658 | |
---|
| 659 | Tcl_DStringInit(&command); |
---|
| 660 | |
---|
| 661 | /* |
---|
| 662 | * Loop executing instructions until a "done" instruction, a TCL_RETURN, |
---|
| 663 | * or some error. |
---|
| 664 | */ |
---|
| 665 | |
---|
| 666 | for (;;) { |
---|
| 667 | #ifdef TCL_COMPILE_DEBUG |
---|
| 668 | ValidatePcAndStackTop(codePtr, pc, stackTop, initStackTop, |
---|
| 669 | eePtr->stackEnd); |
---|
| 670 | #else /* not TCL_COMPILE_DEBUG */ |
---|
| 671 | if (traceInstructions) { |
---|
| 672 | #ifdef TCL_COMPILE_STATS |
---|
| 673 | fprintf(stdout, "%d: %d,%ld ", iPtr->numLevels, stackTop, |
---|
| 674 | (tclObjsAlloced - tclObjsFreed)); |
---|
| 675 | #else /* TCL_COMPILE_STATS */ |
---|
| 676 | fprintf(stdout, "%d: %d ", iPtr->numLevels, stackTop); |
---|
| 677 | #endif /* TCL_COMPILE_STATS */ |
---|
| 678 | TclPrintInstruction(codePtr, pc); |
---|
| 679 | fflush(stdout); |
---|
| 680 | } |
---|
| 681 | #endif /* TCL_COMPILE_DEBUG */ |
---|
| 682 | |
---|
| 683 | opCode = *pc; |
---|
| 684 | #ifdef TCL_COMPILE_STATS |
---|
| 685 | instructionCount[opCode]++; |
---|
| 686 | #endif /* TCL_COMPILE_STATS */ |
---|
| 687 | |
---|
| 688 | switch (opCode) { |
---|
| 689 | case INST_DONE: |
---|
| 690 | /* |
---|
| 691 | * Pop the topmost object from the stack, set the interpreter's |
---|
| 692 | * object result to point to it, and return. |
---|
| 693 | */ |
---|
| 694 | valuePtr = POP_OBJECT(); |
---|
| 695 | Tcl_SetObjResult(interp, valuePtr); |
---|
| 696 | TclDecrRefCount(valuePtr); |
---|
| 697 | if (stackTop != initStackTop) { |
---|
| 698 | fprintf(stderr, "\nTclExecuteByteCode: done instruction at pc %u: stack top %d != entry stack top %d\n", |
---|
| 699 | (unsigned int)(pc - codePtr->codeStart), |
---|
| 700 | (unsigned int) stackTop, |
---|
| 701 | (unsigned int) initStackTop); |
---|
| 702 | fprintf(stderr, " Source: "); |
---|
| 703 | TclPrintSource(stderr, codePtr->source, 150); |
---|
| 704 | panic("TclExecuteByteCode execution failure: end stack top != start stack top"); |
---|
| 705 | } |
---|
| 706 | TRACE_WITH_OBJ(("done => return code=%d, result is ", result), |
---|
| 707 | iPtr->objResultPtr); |
---|
| 708 | goto done; |
---|
| 709 | |
---|
| 710 | case INST_PUSH1: |
---|
| 711 | valuePtr = objArrayPtr[TclGetUInt1AtPtr(pc+1)]; |
---|
| 712 | PUSH_OBJECT(valuePtr); |
---|
| 713 | TRACE_WITH_OBJ(("push1 %u => ", TclGetUInt1AtPtr(pc+1)), |
---|
| 714 | valuePtr); |
---|
| 715 | ADJUST_PC(2); |
---|
| 716 | |
---|
| 717 | case INST_PUSH4: |
---|
| 718 | valuePtr = objArrayPtr[TclGetUInt4AtPtr(pc+1)]; |
---|
| 719 | PUSH_OBJECT(valuePtr); |
---|
| 720 | TRACE_WITH_OBJ(("push4 %u => ", TclGetUInt4AtPtr(pc+1)), |
---|
| 721 | valuePtr); |
---|
| 722 | ADJUST_PC(5); |
---|
| 723 | |
---|
| 724 | case INST_POP: |
---|
| 725 | valuePtr = POP_OBJECT(); |
---|
| 726 | TRACE_WITH_OBJ(("pop => discarding "), valuePtr); |
---|
| 727 | TclDecrRefCount(valuePtr); /* finished with pop'ed object. */ |
---|
| 728 | ADJUST_PC(1); |
---|
| 729 | |
---|
| 730 | case INST_DUP: |
---|
| 731 | valuePtr = stackPtr[stackTop].o; |
---|
| 732 | PUSH_OBJECT(Tcl_DuplicateObj(valuePtr)); |
---|
| 733 | TRACE_WITH_OBJ(("dup => "), valuePtr); |
---|
| 734 | ADJUST_PC(1); |
---|
| 735 | |
---|
| 736 | case INST_CONCAT1: |
---|
| 737 | opnd = TclGetUInt1AtPtr(pc+1); |
---|
| 738 | { |
---|
| 739 | Tcl_Obj *concatObjPtr; |
---|
| 740 | int totalLen = 0; |
---|
| 741 | |
---|
| 742 | /* |
---|
| 743 | * Concatenate strings (with no separators) from the top |
---|
| 744 | * opnd items on the stack starting with the deepest item. |
---|
| 745 | * First, determine how many characters are needed. |
---|
| 746 | */ |
---|
| 747 | |
---|
| 748 | for (i = (stackTop - (opnd-1)); i <= stackTop; i++) { |
---|
| 749 | valuePtr = stackPtr[i].o; |
---|
| 750 | bytes = TclGetStringFromObj(valuePtr, &length); |
---|
| 751 | if (bytes != NULL) { |
---|
| 752 | totalLen += length; |
---|
| 753 | } |
---|
| 754 | } |
---|
| 755 | |
---|
| 756 | /* |
---|
| 757 | * Initialize the new append string object by appending the |
---|
| 758 | * strings of the opnd stack objects. Also pop the objects. |
---|
| 759 | */ |
---|
| 760 | |
---|
| 761 | TclNewObj(concatObjPtr); |
---|
| 762 | if (totalLen > 0) { |
---|
| 763 | char *p = (char *) ckalloc((unsigned) (totalLen + 1)); |
---|
| 764 | concatObjPtr->bytes = p; |
---|
| 765 | concatObjPtr->length = totalLen; |
---|
| 766 | for (i = (stackTop - (opnd-1)); i <= stackTop; i++) { |
---|
| 767 | valuePtr = stackPtr[i].o; |
---|
| 768 | bytes = TclGetStringFromObj(valuePtr, &length); |
---|
| 769 | if (bytes != NULL) { |
---|
| 770 | memcpy((VOID *) p, (VOID *) bytes, |
---|
| 771 | (size_t) length); |
---|
| 772 | p += length; |
---|
| 773 | } |
---|
| 774 | TclDecrRefCount(valuePtr); |
---|
| 775 | } |
---|
| 776 | *p = '\0'; |
---|
| 777 | } else { |
---|
| 778 | for (i = (stackTop - (opnd-1)); i <= stackTop; i++) { |
---|
| 779 | valuePtr = stackPtr[i].o; |
---|
| 780 | Tcl_DecrRefCount(valuePtr); |
---|
| 781 | } |
---|
| 782 | } |
---|
| 783 | stackTop -= opnd; |
---|
| 784 | |
---|
| 785 | PUSH_OBJECT(concatObjPtr); |
---|
| 786 | TRACE_WITH_OBJ(("concat %u => ", opnd), concatObjPtr); |
---|
| 787 | ADJUST_PC(2); |
---|
| 788 | } |
---|
| 789 | |
---|
| 790 | case INST_INVOKE_STK4: |
---|
| 791 | opnd = TclGetUInt4AtPtr(pc+1); |
---|
| 792 | pcAdjustment = 5; |
---|
| 793 | goto doInvocation; |
---|
| 794 | |
---|
| 795 | case INST_INVOKE_STK1: |
---|
| 796 | opnd = TclGetUInt1AtPtr(pc+1); |
---|
| 797 | pcAdjustment = 2; |
---|
| 798 | |
---|
| 799 | doInvocation: |
---|
| 800 | { |
---|
| 801 | char *cmdName; |
---|
| 802 | Command *cmdPtr; /* Points to command's Command struct. */ |
---|
| 803 | int objc = opnd; /* The number of arguments. */ |
---|
| 804 | Tcl_Obj **objv; /* The array of argument objects. */ |
---|
| 805 | Tcl_Obj *objv0Ptr; /* Holds objv[0], the command name. */ |
---|
| 806 | int newPcOffset = 0; |
---|
| 807 | /* Instruction offset computed during |
---|
| 808 | * break, continue, error processing. |
---|
| 809 | * Init. to avoid compiler warning. */ |
---|
| 810 | Tcl_Command cmd; |
---|
| 811 | #ifdef TCL_COMPILE_DEBUG |
---|
| 812 | int isUnknownCmd = 0; |
---|
| 813 | char cmdNameBuf[30]; |
---|
| 814 | #endif /* TCL_COMPILE_DEBUG */ |
---|
| 815 | |
---|
| 816 | /* |
---|
| 817 | * If the interpreter was deleted, return an error. |
---|
| 818 | */ |
---|
| 819 | |
---|
| 820 | if (iPtr->flags & DELETED) { |
---|
| 821 | Tcl_ResetResult(interp); |
---|
| 822 | Tcl_AppendToObj(Tcl_GetObjResult(interp), |
---|
| 823 | "attempt to call eval in deleted interpreter", -1); |
---|
| 824 | Tcl_SetErrorCode(interp, "CORE", "IDELETE", |
---|
| 825 | "attempt to call eval in deleted interpreter", |
---|
| 826 | (char *) NULL); |
---|
| 827 | result = TCL_ERROR; |
---|
| 828 | goto checkForCatch; |
---|
| 829 | } |
---|
| 830 | |
---|
| 831 | objv = &(stackPtr[stackTop - (objc-1)].o); |
---|
| 832 | objv0Ptr = objv[0]; |
---|
| 833 | cmdName = TclGetStringFromObj(objv0Ptr, (int *) NULL); |
---|
| 834 | |
---|
| 835 | /* |
---|
| 836 | * Find the procedure to execute this command. If there |
---|
| 837 | * isn't one, then see if there is a command "unknown". If |
---|
| 838 | * so, invoke it, passing it the original command words as |
---|
| 839 | * arguments. |
---|
| 840 | * |
---|
| 841 | * We convert the objv[0] object to be a CmdName object. |
---|
| 842 | * This caches a pointer to the Command structure for the |
---|
| 843 | * command; this pointer is held in a ResolvedCmdName |
---|
| 844 | * structure the object's internal rep. points to. |
---|
| 845 | */ |
---|
| 846 | |
---|
| 847 | cmd = Tcl_GetCommandFromObj(interp, objv0Ptr); |
---|
| 848 | cmdPtr = (Command *) cmd; |
---|
| 849 | |
---|
| 850 | /* |
---|
| 851 | * If the command is still not found, handle it with the |
---|
| 852 | * "unknown" proc. |
---|
| 853 | */ |
---|
| 854 | |
---|
| 855 | if (cmdPtr == NULL) { |
---|
| 856 | cmd = Tcl_FindCommand(interp, "unknown", |
---|
| 857 | (Tcl_Namespace *) NULL, /*flags*/ TCL_GLOBAL_ONLY); |
---|
| 858 | if (cmd == (Tcl_Command) NULL) { |
---|
| 859 | Tcl_ResetResult(interp); |
---|
| 860 | Tcl_AppendStringsToObj(Tcl_GetObjResult(interp), |
---|
| 861 | "invalid command name \"", cmdName, "\"", |
---|
| 862 | (char *) NULL); |
---|
| 863 | TRACE(("%s %u => unknown proc not found: ", |
---|
| 864 | opName[opCode], objc)); |
---|
| 865 | result = TCL_ERROR; |
---|
| 866 | goto checkForCatch; |
---|
| 867 | } |
---|
| 868 | cmdPtr = (Command *) cmd; |
---|
| 869 | #ifdef TCL_COMPILE_DEBUG |
---|
| 870 | isUnknownCmd = 1; |
---|
| 871 | #endif /*TCL_COMPILE_DEBUG*/ |
---|
| 872 | stackTop++; /* need room for new inserted objv[0] */ |
---|
| 873 | for (i = objc; i >= 0; i--) { |
---|
| 874 | objv[i+1] = objv[i]; |
---|
| 875 | } |
---|
| 876 | objc++; |
---|
| 877 | objv[0] = Tcl_NewStringObj("unknown", -1); |
---|
| 878 | Tcl_IncrRefCount(objv[0]); |
---|
| 879 | } |
---|
| 880 | |
---|
| 881 | /* |
---|
| 882 | * Call any trace procedures. |
---|
| 883 | */ |
---|
| 884 | |
---|
| 885 | if (iPtr->tracePtr != NULL) { |
---|
| 886 | Trace *tracePtr, *nextTracePtr; |
---|
| 887 | |
---|
| 888 | for (tracePtr = iPtr->tracePtr; tracePtr != NULL; |
---|
| 889 | tracePtr = nextTracePtr) { |
---|
| 890 | nextTracePtr = tracePtr->nextPtr; |
---|
| 891 | if (iPtr->numLevels <= tracePtr->level) { |
---|
| 892 | int numChars; |
---|
| 893 | char *cmd = GetSrcInfoForPc(pc, codePtr, |
---|
| 894 | &numChars); |
---|
| 895 | if (cmd != NULL) { |
---|
| 896 | DECACHE_STACK_INFO(); |
---|
| 897 | CallTraceProcedure(interp, tracePtr, cmdPtr, |
---|
| 898 | cmd, numChars, objc, objv); |
---|
| 899 | CACHE_STACK_INFO(); |
---|
| 900 | } |
---|
| 901 | } |
---|
| 902 | } |
---|
| 903 | } |
---|
| 904 | |
---|
| 905 | /* |
---|
| 906 | * Finally, invoke the command's Tcl_ObjCmdProc. First reset |
---|
| 907 | * the interpreter's string and object results to their |
---|
| 908 | * default empty values since they could have gotten changed |
---|
| 909 | * by earlier invocations. |
---|
| 910 | */ |
---|
| 911 | |
---|
| 912 | Tcl_ResetResult(interp); |
---|
| 913 | |
---|
| 914 | if (tclTraceExec >= 2) { |
---|
| 915 | char buffer[50]; |
---|
| 916 | |
---|
| 917 | sprintf(buffer, "%d: (%u) invoking ", iPtr->numLevels, |
---|
| 918 | (unsigned int)(pc - codePtr->codeStart)); |
---|
| 919 | Tcl_DStringAppend(&command, buffer, -1); |
---|
| 920 | |
---|
| 921 | #ifdef TCL_COMPILE_DEBUG |
---|
| 922 | if (traceInstructions) { /* tclTraceExec == 3 */ |
---|
| 923 | strncpy(cmdNameBuf, cmdName, 20); |
---|
| 924 | TRACE(("%s %u => call ", opName[opCode], |
---|
| 925 | (isUnknownCmd? objc-1 : objc))); |
---|
| 926 | } else { |
---|
| 927 | fprintf(stdout, "%s", buffer); |
---|
| 928 | } |
---|
| 929 | #else /* TCL_COMPILE_DEBUG */ |
---|
| 930 | fprintf(stdout, "%s", buffer); |
---|
| 931 | #endif /*TCL_COMPILE_DEBUG*/ |
---|
| 932 | |
---|
| 933 | for (i = 0; i < objc; i++) { |
---|
| 934 | bytes = TclGetStringFromObj(objv[i], &length); |
---|
| 935 | TclPrintSource(stdout, bytes, TclMin(length, 15)); |
---|
| 936 | fprintf(stdout, " "); |
---|
| 937 | |
---|
| 938 | sprintf(buffer, "\"%.*s\" ", TclMin(length, 15), bytes); |
---|
| 939 | Tcl_DStringAppend(&command, buffer, -1); |
---|
| 940 | } |
---|
| 941 | fprintf(stdout, "\n"); |
---|
| 942 | fflush(stdout); |
---|
| 943 | |
---|
| 944 | Tcl_DStringFree(&command); |
---|
| 945 | } |
---|
| 946 | |
---|
| 947 | iPtr->cmdCount++; |
---|
| 948 | DECACHE_STACK_INFO(); |
---|
| 949 | result = (*cmdPtr->objProc)(cmdPtr->objClientData, interp, |
---|
| 950 | objc, objv); |
---|
| 951 | if (Tcl_AsyncReady()) { |
---|
| 952 | result = Tcl_AsyncInvoke(interp, result); |
---|
| 953 | } |
---|
| 954 | CACHE_STACK_INFO(); |
---|
| 955 | |
---|
| 956 | /* |
---|
| 957 | * If the interpreter has a non-empty string result, the |
---|
| 958 | * result object is either empty or stale because some |
---|
| 959 | * procedure set interp->result directly. If so, move the |
---|
| 960 | * string result to the result object, then reset the |
---|
| 961 | * string result. |
---|
| 962 | */ |
---|
| 963 | |
---|
| 964 | if (*(iPtr->result) != 0) { |
---|
| 965 | (void) Tcl_GetObjResult(interp); |
---|
| 966 | } |
---|
| 967 | |
---|
| 968 | /* |
---|
| 969 | * Pop the objc top stack elements and decrement their ref |
---|
| 970 | * counts. |
---|
| 971 | */ |
---|
| 972 | |
---|
| 973 | i = (stackTop - (objc-1)); |
---|
| 974 | while (i <= stackTop) { |
---|
| 975 | valuePtr = stackPtr[i].o; |
---|
| 976 | TclDecrRefCount(valuePtr); |
---|
| 977 | i++; |
---|
| 978 | } |
---|
| 979 | stackTop -= objc; |
---|
| 980 | |
---|
| 981 | /* |
---|
| 982 | * Process the result of the Tcl_ObjCmdProc call. |
---|
| 983 | */ |
---|
| 984 | |
---|
| 985 | switch (result) { |
---|
| 986 | case TCL_OK: |
---|
| 987 | /* |
---|
| 988 | * Push the call's object result and continue execution |
---|
| 989 | * with the next instruction. |
---|
| 990 | */ |
---|
| 991 | PUSH_OBJECT(Tcl_GetObjResult(interp)); |
---|
| 992 | TRACE_WITH_OBJ(("%s %u => ...after \"%.20s\", result=", |
---|
| 993 | opName[opCode], objc, cmdNameBuf), |
---|
| 994 | Tcl_GetObjResult(interp)); |
---|
| 995 | ADJUST_PC(pcAdjustment); |
---|
| 996 | |
---|
| 997 | case TCL_BREAK: |
---|
| 998 | case TCL_CONTINUE: |
---|
| 999 | /* |
---|
| 1000 | * The invoked command requested a break or continue. |
---|
| 1001 | * Find the closest enclosing loop or catch exception |
---|
| 1002 | * range, if any. If a loop is found, terminate its |
---|
| 1003 | * execution or skip to its next iteration. If the |
---|
| 1004 | * closest is a catch exception range, jump to its |
---|
| 1005 | * catchOffset. If no enclosing range is found, stop |
---|
| 1006 | * execution and return the TCL_BREAK or TCL_CONTINUE. |
---|
| 1007 | */ |
---|
| 1008 | rangePtr = TclGetExceptionRangeForPc(pc, |
---|
| 1009 | /*catchOnly*/ 0, codePtr); |
---|
| 1010 | if (rangePtr == NULL) { |
---|
| 1011 | TRACE(("%s %u => ... after \"%.20s\", no encl. loop or catch, returning %s\n", |
---|
| 1012 | opName[opCode], objc, cmdNameBuf, |
---|
| 1013 | StringForResultCode(result))); |
---|
| 1014 | goto abnormalReturn; /* no catch exists to check */ |
---|
| 1015 | } |
---|
| 1016 | switch (rangePtr->type) { |
---|
| 1017 | case LOOP_EXCEPTION_RANGE: |
---|
| 1018 | if (result == TCL_BREAK) { |
---|
| 1019 | newPcOffset = rangePtr->breakOffset; |
---|
| 1020 | } else if (rangePtr->continueOffset == -1) { |
---|
| 1021 | TRACE(("%s %u => ... after \"%.20s\", %s, loop w/o continue, checking for catch\n", |
---|
| 1022 | opName[opCode], objc, cmdNameBuf, |
---|
| 1023 | StringForResultCode(result))); |
---|
| 1024 | goto checkForCatch; |
---|
| 1025 | } else { |
---|
| 1026 | newPcOffset = rangePtr->continueOffset; |
---|
| 1027 | } |
---|
| 1028 | TRACE(("%s %u => ... after \"%.20s\", %s, range at %d, new pc %d\n", |
---|
| 1029 | opName[opCode], objc, cmdNameBuf, |
---|
| 1030 | StringForResultCode(result), |
---|
| 1031 | rangePtr->codeOffset, newPcOffset)); |
---|
| 1032 | break; |
---|
| 1033 | case CATCH_EXCEPTION_RANGE: |
---|
| 1034 | TRACE(("%s %u => ... after \"%.20s\", %s...\n", |
---|
| 1035 | opName[opCode], objc, cmdNameBuf, |
---|
| 1036 | StringForResultCode(result))); |
---|
| 1037 | goto processCatch; /* it will use rangePtr */ |
---|
| 1038 | default: |
---|
| 1039 | panic("TclExecuteByteCode: unrecognized ExceptionRange type %d\n", rangePtr->type); |
---|
| 1040 | } |
---|
| 1041 | result = TCL_OK; |
---|
| 1042 | pc = (codePtr->codeStart + newPcOffset); |
---|
| 1043 | continue; /* restart outer instruction loop at pc */ |
---|
| 1044 | |
---|
| 1045 | case TCL_ERROR: |
---|
| 1046 | /* |
---|
| 1047 | * The invoked command returned an error. Look for an |
---|
| 1048 | * enclosing catch exception range, if any. |
---|
| 1049 | */ |
---|
| 1050 | TRACE_WITH_OBJ(("%s %u => ... after \"%.20s\", TCL_ERROR ", |
---|
| 1051 | opName[opCode], objc, cmdNameBuf), |
---|
| 1052 | Tcl_GetObjResult(interp)); |
---|
| 1053 | goto checkForCatch; |
---|
| 1054 | |
---|
| 1055 | case TCL_RETURN: |
---|
| 1056 | /* |
---|
| 1057 | * The invoked command requested that the current |
---|
| 1058 | * procedure stop execution and return. First check |
---|
| 1059 | * for an enclosing catch exception range, if any. |
---|
| 1060 | */ |
---|
| 1061 | TRACE(("%s %u => ... after \"%.20s\", TCL_RETURN\n", |
---|
| 1062 | opName[opCode], objc, cmdNameBuf)); |
---|
| 1063 | goto checkForCatch; |
---|
| 1064 | |
---|
| 1065 | default: |
---|
| 1066 | TRACE_WITH_OBJ(("%s %u => ... after \"%.20s\", OTHER RETURN CODE %d ", |
---|
| 1067 | opName[opCode], objc, cmdNameBuf, result), |
---|
| 1068 | Tcl_GetObjResult(interp)); |
---|
| 1069 | goto checkForCatch; |
---|
| 1070 | } /* end of switch on result from invoke instruction */ |
---|
| 1071 | } |
---|
| 1072 | |
---|
| 1073 | case INST_EVAL_STK: |
---|
| 1074 | objPtr = POP_OBJECT(); |
---|
| 1075 | DECACHE_STACK_INFO(); |
---|
| 1076 | result = Tcl_EvalObj(interp, objPtr); |
---|
| 1077 | CACHE_STACK_INFO(); |
---|
| 1078 | if (result == TCL_OK) { |
---|
| 1079 | /* |
---|
| 1080 | * Normal return; push the eval's object result. |
---|
| 1081 | */ |
---|
| 1082 | |
---|
| 1083 | PUSH_OBJECT(Tcl_GetObjResult(interp)); |
---|
| 1084 | TRACE_WITH_OBJ(("evalStk \"%.30s\" => ", O2S(objPtr)), |
---|
| 1085 | Tcl_GetObjResult(interp)); |
---|
| 1086 | TclDecrRefCount(objPtr); |
---|
| 1087 | ADJUST_PC(1); |
---|
| 1088 | } else if ((result == TCL_BREAK) || (result == TCL_CONTINUE)) { |
---|
| 1089 | /* |
---|
| 1090 | * Find the closest enclosing loop or catch exception range, |
---|
| 1091 | * if any. If a loop is found, terminate its execution or |
---|
| 1092 | * skip to its next iteration. If the closest is a catch |
---|
| 1093 | * exception range, jump to its catchOffset. If no enclosing |
---|
| 1094 | * range is found, stop execution and return that same |
---|
| 1095 | * TCL_BREAK or TCL_CONTINUE. |
---|
| 1096 | */ |
---|
| 1097 | |
---|
| 1098 | int newPcOffset = 0; /* Pc offset computed during break, |
---|
| 1099 | * continue, error processing. Init. |
---|
| 1100 | * to avoid compiler warning. */ |
---|
| 1101 | |
---|
| 1102 | rangePtr = TclGetExceptionRangeForPc(pc, /*catchOnly*/ 0, |
---|
| 1103 | codePtr); |
---|
| 1104 | if (rangePtr == NULL) { |
---|
| 1105 | TRACE(("evalStk \"%.30s\" => no encl. loop or catch, returning %s\n", |
---|
| 1106 | O2S(objPtr), StringForResultCode(result))); |
---|
| 1107 | Tcl_DecrRefCount(objPtr); |
---|
| 1108 | goto abnormalReturn; /* no catch exists to check */ |
---|
| 1109 | } |
---|
| 1110 | switch (rangePtr->type) { |
---|
| 1111 | case LOOP_EXCEPTION_RANGE: |
---|
| 1112 | if (result == TCL_BREAK) { |
---|
| 1113 | newPcOffset = rangePtr->breakOffset; |
---|
| 1114 | } else if (rangePtr->continueOffset == -1) { |
---|
| 1115 | TRACE(("evalStk \"%.30s\" => %s, loop w/o continue, checking for catch\n", |
---|
| 1116 | O2S(objPtr), StringForResultCode(result))); |
---|
| 1117 | Tcl_DecrRefCount(objPtr); |
---|
| 1118 | goto checkForCatch; |
---|
| 1119 | } else { |
---|
| 1120 | newPcOffset = rangePtr->continueOffset; |
---|
| 1121 | } |
---|
| 1122 | result = TCL_OK; |
---|
| 1123 | TRACE_WITH_OBJ(("evalStk \"%.30s\" => %s, range at %d, new pc %d ", |
---|
| 1124 | O2S(objPtr), StringForResultCode(result), |
---|
| 1125 | rangePtr->codeOffset, newPcOffset), valuePtr); |
---|
| 1126 | break; |
---|
| 1127 | case CATCH_EXCEPTION_RANGE: |
---|
| 1128 | TRACE_WITH_OBJ(("evalStk \"%.30s\" => %s ", |
---|
| 1129 | O2S(objPtr), StringForResultCode(result)), |
---|
| 1130 | valuePtr); |
---|
| 1131 | Tcl_DecrRefCount(objPtr); |
---|
| 1132 | goto processCatch; /* it will use rangePtr */ |
---|
| 1133 | default: |
---|
| 1134 | panic("TclExecuteByteCode: unrecognized ExceptionRange type %d\n", rangePtr->type); |
---|
| 1135 | } |
---|
| 1136 | Tcl_DecrRefCount(objPtr); |
---|
| 1137 | pc = (codePtr->codeStart + newPcOffset); |
---|
| 1138 | continue; /* restart outer instruction loop at pc */ |
---|
| 1139 | } else { /* eval returned TCL_ERROR, TCL_RETURN, unknown code */ |
---|
| 1140 | TRACE_WITH_OBJ(("evalStk \"%.30s\" => ERROR: ", O2S(objPtr)), |
---|
| 1141 | Tcl_GetObjResult(interp)); |
---|
| 1142 | Tcl_DecrRefCount(objPtr); |
---|
| 1143 | goto checkForCatch; |
---|
| 1144 | } |
---|
| 1145 | |
---|
| 1146 | case INST_EXPR_STK: |
---|
| 1147 | objPtr = POP_OBJECT(); |
---|
| 1148 | Tcl_ResetResult(interp); |
---|
| 1149 | DECACHE_STACK_INFO(); |
---|
| 1150 | result = Tcl_ExprObj(interp, objPtr, &valuePtr); |
---|
| 1151 | CACHE_STACK_INFO(); |
---|
| 1152 | if (result != TCL_OK) { |
---|
| 1153 | TRACE_WITH_OBJ(("exprStk \"%.30s\" => ERROR: ", |
---|
| 1154 | O2S(objPtr)), Tcl_GetObjResult(interp)); |
---|
| 1155 | Tcl_DecrRefCount(objPtr); |
---|
| 1156 | goto checkForCatch; |
---|
| 1157 | } |
---|
| 1158 | stackPtr[++stackTop].o = valuePtr; /* already has right refct */ |
---|
| 1159 | TRACE_WITH_OBJ(("exprStk \"%.30s\" => ", O2S(objPtr)), valuePtr); |
---|
| 1160 | TclDecrRefCount(objPtr); |
---|
| 1161 | ADJUST_PC(1); |
---|
| 1162 | |
---|
| 1163 | case INST_LOAD_SCALAR4: |
---|
| 1164 | opnd = TclGetInt4AtPtr(pc+1); |
---|
| 1165 | pcAdjustment = 5; |
---|
| 1166 | goto doLoadScalar; |
---|
| 1167 | |
---|
| 1168 | case INST_LOAD_SCALAR1: |
---|
| 1169 | opnd = TclGetUInt1AtPtr(pc+1); |
---|
| 1170 | pcAdjustment = 2; |
---|
| 1171 | |
---|
| 1172 | doLoadScalar: |
---|
| 1173 | DECACHE_STACK_INFO(); |
---|
| 1174 | valuePtr = TclGetIndexedScalar(interp, opnd, |
---|
| 1175 | /*leaveErrorMsg*/ 1); |
---|
| 1176 | CACHE_STACK_INFO(); |
---|
| 1177 | if (valuePtr == NULL) { |
---|
| 1178 | TRACE_WITH_OBJ(("%s %u => ERROR: ", opName[opCode], opnd), |
---|
| 1179 | Tcl_GetObjResult(interp)); |
---|
| 1180 | result = TCL_ERROR; |
---|
| 1181 | goto checkForCatch; |
---|
| 1182 | } |
---|
| 1183 | PUSH_OBJECT(valuePtr); |
---|
| 1184 | TRACE_WITH_OBJ(("%s %u => ", opName[opCode], opnd), valuePtr); |
---|
| 1185 | ADJUST_PC(pcAdjustment); |
---|
| 1186 | |
---|
| 1187 | case INST_LOAD_SCALAR_STK: |
---|
| 1188 | namePtr = POP_OBJECT(); |
---|
| 1189 | DECACHE_STACK_INFO(); |
---|
| 1190 | valuePtr = Tcl_ObjGetVar2(interp, namePtr, (Tcl_Obj *) NULL, |
---|
| 1191 | TCL_LEAVE_ERR_MSG); |
---|
| 1192 | CACHE_STACK_INFO(); |
---|
| 1193 | if (valuePtr == NULL) { |
---|
| 1194 | TRACE_WITH_OBJ(("loadScalarStk \"%.30s\" => ERROR: ", |
---|
| 1195 | O2S(namePtr)), Tcl_GetObjResult(interp)); |
---|
| 1196 | Tcl_DecrRefCount(namePtr); |
---|
| 1197 | result = TCL_ERROR; |
---|
| 1198 | goto checkForCatch; |
---|
| 1199 | } |
---|
| 1200 | PUSH_OBJECT(valuePtr); |
---|
| 1201 | TRACE_WITH_OBJ(("loadScalarStk \"%.30s\" => ", |
---|
| 1202 | O2S(namePtr)), valuePtr); |
---|
| 1203 | TclDecrRefCount(namePtr); |
---|
| 1204 | ADJUST_PC(1); |
---|
| 1205 | |
---|
| 1206 | case INST_LOAD_ARRAY4: |
---|
| 1207 | opnd = TclGetUInt4AtPtr(pc+1); |
---|
| 1208 | pcAdjustment = 5; |
---|
| 1209 | goto doLoadArray; |
---|
| 1210 | |
---|
| 1211 | case INST_LOAD_ARRAY1: |
---|
| 1212 | opnd = TclGetUInt1AtPtr(pc+1); |
---|
| 1213 | pcAdjustment = 2; |
---|
| 1214 | |
---|
| 1215 | doLoadArray: |
---|
| 1216 | { |
---|
| 1217 | Tcl_Obj *elemPtr = POP_OBJECT(); |
---|
| 1218 | |
---|
| 1219 | DECACHE_STACK_INFO(); |
---|
| 1220 | valuePtr = TclGetElementOfIndexedArray(interp, opnd, |
---|
| 1221 | elemPtr, /*leaveErrorMsg*/ 1); |
---|
| 1222 | CACHE_STACK_INFO(); |
---|
| 1223 | if (valuePtr == NULL) { |
---|
| 1224 | TRACE_WITH_OBJ(("%s %u \"%.30s\" => ERROR: ", |
---|
| 1225 | opName[opCode], opnd, O2S(elemPtr)), |
---|
| 1226 | Tcl_GetObjResult(interp)); |
---|
| 1227 | Tcl_DecrRefCount(elemPtr); |
---|
| 1228 | result = TCL_ERROR; |
---|
| 1229 | goto checkForCatch; |
---|
| 1230 | } |
---|
| 1231 | PUSH_OBJECT(valuePtr); |
---|
| 1232 | TRACE_WITH_OBJ(("%s %u \"%.30s\" => ", |
---|
| 1233 | opName[opCode], opnd, O2S(elemPtr)), valuePtr); |
---|
| 1234 | TclDecrRefCount(elemPtr); |
---|
| 1235 | } |
---|
| 1236 | ADJUST_PC(pcAdjustment); |
---|
| 1237 | |
---|
| 1238 | case INST_LOAD_ARRAY_STK: |
---|
| 1239 | { |
---|
| 1240 | Tcl_Obj *elemPtr = POP_OBJECT(); |
---|
| 1241 | |
---|
| 1242 | namePtr = POP_OBJECT(); |
---|
| 1243 | DECACHE_STACK_INFO(); |
---|
| 1244 | valuePtr = Tcl_ObjGetVar2(interp, namePtr, elemPtr, |
---|
| 1245 | TCL_LEAVE_ERR_MSG); |
---|
| 1246 | CACHE_STACK_INFO(); |
---|
| 1247 | if (valuePtr == NULL) { |
---|
| 1248 | TRACE_WITH_OBJ(("loadArrayStk \"%.30s(%.30s)\" => ERROR: ", |
---|
| 1249 | O2S(namePtr), O2S(elemPtr)), |
---|
| 1250 | Tcl_GetObjResult(interp)); |
---|
| 1251 | Tcl_DecrRefCount(namePtr); |
---|
| 1252 | Tcl_DecrRefCount(elemPtr); |
---|
| 1253 | result = TCL_ERROR; |
---|
| 1254 | goto checkForCatch; |
---|
| 1255 | } |
---|
| 1256 | PUSH_OBJECT(valuePtr); |
---|
| 1257 | TRACE_WITH_OBJ(("loadArrayStk \"%.30s(%.30s)\" => ", |
---|
| 1258 | O2S(namePtr), O2S(elemPtr)), valuePtr); |
---|
| 1259 | TclDecrRefCount(namePtr); |
---|
| 1260 | TclDecrRefCount(elemPtr); |
---|
| 1261 | } |
---|
| 1262 | ADJUST_PC(1); |
---|
| 1263 | |
---|
| 1264 | case INST_LOAD_STK: |
---|
| 1265 | namePtr = POP_OBJECT(); |
---|
| 1266 | DECACHE_STACK_INFO(); |
---|
| 1267 | valuePtr = Tcl_ObjGetVar2(interp, namePtr, NULL, |
---|
| 1268 | TCL_PARSE_PART1|TCL_LEAVE_ERR_MSG); |
---|
| 1269 | CACHE_STACK_INFO(); |
---|
| 1270 | if (valuePtr == NULL) { |
---|
| 1271 | TRACE_WITH_OBJ(("loadStk \"%.30s\" => ERROR: ", |
---|
| 1272 | O2S(namePtr)), Tcl_GetObjResult(interp)); |
---|
| 1273 | Tcl_DecrRefCount(namePtr); |
---|
| 1274 | result = TCL_ERROR; |
---|
| 1275 | goto checkForCatch; |
---|
| 1276 | } |
---|
| 1277 | PUSH_OBJECT(valuePtr); |
---|
| 1278 | TRACE_WITH_OBJ(("loadStk \"%.30s\" => ", O2S(namePtr)), |
---|
| 1279 | valuePtr); |
---|
| 1280 | TclDecrRefCount(namePtr); |
---|
| 1281 | ADJUST_PC(1); |
---|
| 1282 | |
---|
| 1283 | case INST_STORE_SCALAR4: |
---|
| 1284 | opnd = TclGetUInt4AtPtr(pc+1); |
---|
| 1285 | pcAdjustment = 5; |
---|
| 1286 | goto doStoreScalar; |
---|
| 1287 | |
---|
| 1288 | case INST_STORE_SCALAR1: |
---|
| 1289 | opnd = TclGetUInt1AtPtr(pc+1); |
---|
| 1290 | pcAdjustment = 2; |
---|
| 1291 | |
---|
| 1292 | doStoreScalar: |
---|
| 1293 | valuePtr = POP_OBJECT(); |
---|
| 1294 | DECACHE_STACK_INFO(); |
---|
| 1295 | value2Ptr = TclSetIndexedScalar(interp, opnd, valuePtr, |
---|
| 1296 | /*leaveErrorMsg*/ 1); |
---|
| 1297 | CACHE_STACK_INFO(); |
---|
| 1298 | if (value2Ptr == NULL) { |
---|
| 1299 | TRACE_WITH_OBJ(("%s %u <- \"%.30s\" => ERROR: ", |
---|
| 1300 | opName[opCode], opnd, O2S(valuePtr)), |
---|
| 1301 | Tcl_GetObjResult(interp)); |
---|
| 1302 | Tcl_DecrRefCount(valuePtr); |
---|
| 1303 | result = TCL_ERROR; |
---|
| 1304 | goto checkForCatch; |
---|
| 1305 | } |
---|
| 1306 | PUSH_OBJECT(value2Ptr); |
---|
| 1307 | TRACE_WITH_OBJ(("%s %u <- \"%.30s\" => ", |
---|
| 1308 | opName[opCode], opnd, O2S(valuePtr)), value2Ptr); |
---|
| 1309 | TclDecrRefCount(valuePtr); |
---|
| 1310 | ADJUST_PC(pcAdjustment); |
---|
| 1311 | |
---|
| 1312 | case INST_STORE_SCALAR_STK: |
---|
| 1313 | valuePtr = POP_OBJECT(); |
---|
| 1314 | namePtr = POP_OBJECT(); |
---|
| 1315 | DECACHE_STACK_INFO(); |
---|
| 1316 | value2Ptr = Tcl_ObjSetVar2(interp, namePtr, NULL, valuePtr, |
---|
| 1317 | TCL_LEAVE_ERR_MSG); |
---|
| 1318 | CACHE_STACK_INFO(); |
---|
| 1319 | if (value2Ptr == NULL) { |
---|
| 1320 | TRACE_WITH_OBJ( |
---|
| 1321 | ("storeScalarStk \"%.30s\" <- \"%.30s\" => ERROR: ", |
---|
| 1322 | O2S(namePtr), O2S(valuePtr)), |
---|
| 1323 | Tcl_GetObjResult(interp)); |
---|
| 1324 | Tcl_DecrRefCount(namePtr); |
---|
| 1325 | Tcl_DecrRefCount(valuePtr); |
---|
| 1326 | result = TCL_ERROR; |
---|
| 1327 | goto checkForCatch; |
---|
| 1328 | } |
---|
| 1329 | PUSH_OBJECT(value2Ptr); |
---|
| 1330 | TRACE_WITH_OBJ( |
---|
| 1331 | ("storeScalarStk \"%.30s\" <- \"%.30s\" => ", |
---|
| 1332 | O2S(namePtr), |
---|
| 1333 | O2S(valuePtr)), |
---|
| 1334 | value2Ptr); |
---|
| 1335 | TclDecrRefCount(namePtr); |
---|
| 1336 | TclDecrRefCount(valuePtr); |
---|
| 1337 | ADJUST_PC(1); |
---|
| 1338 | |
---|
| 1339 | case INST_STORE_ARRAY4: |
---|
| 1340 | opnd = TclGetUInt4AtPtr(pc+1); |
---|
| 1341 | pcAdjustment = 5; |
---|
| 1342 | goto doStoreArray; |
---|
| 1343 | |
---|
| 1344 | case INST_STORE_ARRAY1: |
---|
| 1345 | opnd = TclGetUInt1AtPtr(pc+1); |
---|
| 1346 | pcAdjustment = 2; |
---|
| 1347 | |
---|
| 1348 | doStoreArray: |
---|
| 1349 | { |
---|
| 1350 | Tcl_Obj *elemPtr; |
---|
| 1351 | |
---|
| 1352 | valuePtr = POP_OBJECT(); |
---|
| 1353 | elemPtr = POP_OBJECT(); |
---|
| 1354 | DECACHE_STACK_INFO(); |
---|
| 1355 | value2Ptr = TclSetElementOfIndexedArray(interp, opnd, |
---|
| 1356 | elemPtr, valuePtr, TCL_LEAVE_ERR_MSG); |
---|
| 1357 | CACHE_STACK_INFO(); |
---|
| 1358 | if (value2Ptr == NULL) { |
---|
| 1359 | TRACE_WITH_OBJ( |
---|
| 1360 | ("%s %u \"%.30s\" <- \"%.30s\" => ERROR: ", |
---|
| 1361 | opName[opCode], opnd, O2S(elemPtr), |
---|
| 1362 | O2S(valuePtr)), Tcl_GetObjResult(interp)); |
---|
| 1363 | Tcl_DecrRefCount(elemPtr); |
---|
| 1364 | Tcl_DecrRefCount(valuePtr); |
---|
| 1365 | result = TCL_ERROR; |
---|
| 1366 | goto checkForCatch; |
---|
| 1367 | } |
---|
| 1368 | PUSH_OBJECT(value2Ptr); |
---|
| 1369 | TRACE_WITH_OBJ(("%s %u \"%.30s\" <- \"%.30s\" => ", |
---|
| 1370 | opName[opCode], opnd, O2S(elemPtr), O2S(valuePtr)), |
---|
| 1371 | value2Ptr); |
---|
| 1372 | TclDecrRefCount(elemPtr); |
---|
| 1373 | TclDecrRefCount(valuePtr); |
---|
| 1374 | } |
---|
| 1375 | ADJUST_PC(pcAdjustment); |
---|
| 1376 | |
---|
| 1377 | case INST_STORE_ARRAY_STK: |
---|
| 1378 | { |
---|
| 1379 | Tcl_Obj *elemPtr; |
---|
| 1380 | |
---|
| 1381 | valuePtr = POP_OBJECT(); |
---|
| 1382 | elemPtr = POP_OBJECT(); |
---|
| 1383 | namePtr = POP_OBJECT(); |
---|
| 1384 | DECACHE_STACK_INFO(); |
---|
| 1385 | value2Ptr = Tcl_ObjSetVar2(interp, namePtr, elemPtr, |
---|
| 1386 | valuePtr, TCL_LEAVE_ERR_MSG); |
---|
| 1387 | CACHE_STACK_INFO(); |
---|
| 1388 | if (value2Ptr == NULL) { |
---|
| 1389 | TRACE_WITH_OBJ(("storeArrayStk \"%.30s(%.30s)\" <- \"%.30s\" => ERROR: ", |
---|
| 1390 | O2S(namePtr), O2S(elemPtr), O2S(valuePtr)), |
---|
| 1391 | Tcl_GetObjResult(interp)); |
---|
| 1392 | Tcl_DecrRefCount(namePtr); |
---|
| 1393 | Tcl_DecrRefCount(elemPtr); |
---|
| 1394 | Tcl_DecrRefCount(valuePtr); |
---|
| 1395 | result = TCL_ERROR; |
---|
| 1396 | goto checkForCatch; |
---|
| 1397 | } |
---|
| 1398 | PUSH_OBJECT(value2Ptr); |
---|
| 1399 | TRACE_WITH_OBJ(("storeArrayStk \"%.30s(%.30s)\" <- \"%.30s\" => ", |
---|
| 1400 | O2S(namePtr), O2S(elemPtr), O2S(valuePtr)), |
---|
| 1401 | value2Ptr); |
---|
| 1402 | TclDecrRefCount(namePtr); |
---|
| 1403 | TclDecrRefCount(elemPtr); |
---|
| 1404 | TclDecrRefCount(valuePtr); |
---|
| 1405 | } |
---|
| 1406 | ADJUST_PC(1); |
---|
| 1407 | |
---|
| 1408 | case INST_STORE_STK: |
---|
| 1409 | valuePtr = POP_OBJECT(); |
---|
| 1410 | namePtr = POP_OBJECT(); |
---|
| 1411 | DECACHE_STACK_INFO(); |
---|
| 1412 | value2Ptr = Tcl_ObjSetVar2(interp, namePtr, NULL, valuePtr, |
---|
| 1413 | TCL_PARSE_PART1|TCL_LEAVE_ERR_MSG); |
---|
| 1414 | CACHE_STACK_INFO(); |
---|
| 1415 | if (value2Ptr == NULL) { |
---|
| 1416 | TRACE_WITH_OBJ(("storeStk \"%.30s\" <- \"%.30s\" => ERROR: ", |
---|
| 1417 | O2S(namePtr), O2S(valuePtr)), |
---|
| 1418 | Tcl_GetObjResult(interp)); |
---|
| 1419 | Tcl_DecrRefCount(namePtr); |
---|
| 1420 | Tcl_DecrRefCount(valuePtr); |
---|
| 1421 | result = TCL_ERROR; |
---|
| 1422 | goto checkForCatch; |
---|
| 1423 | } |
---|
| 1424 | PUSH_OBJECT(value2Ptr); |
---|
| 1425 | TRACE_WITH_OBJ(("storeStk \"%.30s\" <- \"%.30s\" => ", |
---|
| 1426 | O2S(namePtr), O2S(valuePtr)), value2Ptr); |
---|
| 1427 | TclDecrRefCount(namePtr); |
---|
| 1428 | TclDecrRefCount(valuePtr); |
---|
| 1429 | ADJUST_PC(1); |
---|
| 1430 | |
---|
| 1431 | case INST_INCR_SCALAR1: |
---|
| 1432 | opnd = TclGetUInt1AtPtr(pc+1); |
---|
| 1433 | valuePtr = POP_OBJECT(); |
---|
| 1434 | if (valuePtr->typePtr != &tclIntType) { |
---|
| 1435 | result = tclIntType.setFromAnyProc(interp, valuePtr); |
---|
| 1436 | if (result != TCL_OK) { |
---|
| 1437 | TRACE_WITH_OBJ(("incrScalar1 %u (by %s) => ERROR converting increment amount to int: ", |
---|
| 1438 | opnd, O2S(valuePtr)), Tcl_GetObjResult(interp)); |
---|
| 1439 | Tcl_DecrRefCount(valuePtr); |
---|
| 1440 | goto checkForCatch; |
---|
| 1441 | } |
---|
| 1442 | } |
---|
| 1443 | i = valuePtr->internalRep.longValue; |
---|
| 1444 | DECACHE_STACK_INFO(); |
---|
| 1445 | value2Ptr = TclIncrIndexedScalar(interp, opnd, i); |
---|
| 1446 | CACHE_STACK_INFO(); |
---|
| 1447 | if (value2Ptr == NULL) { |
---|
| 1448 | TRACE_WITH_OBJ(("incrScalar1 %u (by %ld) => ERROR: ", |
---|
| 1449 | opnd, i), Tcl_GetObjResult(interp)); |
---|
| 1450 | Tcl_DecrRefCount(valuePtr); |
---|
| 1451 | result = TCL_ERROR; |
---|
| 1452 | goto checkForCatch; |
---|
| 1453 | } |
---|
| 1454 | PUSH_OBJECT(value2Ptr); |
---|
| 1455 | TRACE_WITH_OBJ(("incrScalar1 %u (by %ld) => ", opnd, i), |
---|
| 1456 | value2Ptr); |
---|
| 1457 | TclDecrRefCount(valuePtr); |
---|
| 1458 | ADJUST_PC(2); |
---|
| 1459 | |
---|
| 1460 | case INST_INCR_SCALAR_STK: |
---|
| 1461 | case INST_INCR_STK: |
---|
| 1462 | valuePtr = POP_OBJECT(); |
---|
| 1463 | namePtr = POP_OBJECT(); |
---|
| 1464 | if (valuePtr->typePtr != &tclIntType) { |
---|
| 1465 | result = tclIntType.setFromAnyProc(interp, valuePtr); |
---|
| 1466 | if (result != TCL_OK) { |
---|
| 1467 | TRACE_WITH_OBJ(("%s \"%.30s\" (by %s) => ERROR converting increment amount to int: ", |
---|
| 1468 | opName[opCode], O2S(namePtr), O2S(valuePtr)), |
---|
| 1469 | Tcl_GetObjResult(interp)); |
---|
| 1470 | Tcl_DecrRefCount(namePtr); |
---|
| 1471 | Tcl_DecrRefCount(valuePtr); |
---|
| 1472 | goto checkForCatch; |
---|
| 1473 | } |
---|
| 1474 | } |
---|
| 1475 | i = valuePtr->internalRep.longValue; |
---|
| 1476 | DECACHE_STACK_INFO(); |
---|
| 1477 | value2Ptr = TclIncrVar2(interp, namePtr, (Tcl_Obj *) NULL, i, |
---|
| 1478 | /*part1NotParsed*/ (opCode == INST_INCR_STK)); |
---|
| 1479 | CACHE_STACK_INFO(); |
---|
| 1480 | if (value2Ptr == NULL) { |
---|
| 1481 | TRACE_WITH_OBJ(("%s \"%.30s\" (by %ld) => ERROR: ", |
---|
| 1482 | opName[opCode], O2S(namePtr), i), |
---|
| 1483 | Tcl_GetObjResult(interp)); |
---|
| 1484 | Tcl_DecrRefCount(namePtr); |
---|
| 1485 | Tcl_DecrRefCount(valuePtr); |
---|
| 1486 | result = TCL_ERROR; |
---|
| 1487 | goto checkForCatch; |
---|
| 1488 | } |
---|
| 1489 | PUSH_OBJECT(value2Ptr); |
---|
| 1490 | TRACE_WITH_OBJ(("%s \"%.30s\" (by %ld) => ", |
---|
| 1491 | opName[opCode], O2S(namePtr), i), value2Ptr); |
---|
| 1492 | Tcl_DecrRefCount(namePtr); |
---|
| 1493 | Tcl_DecrRefCount(valuePtr); |
---|
| 1494 | ADJUST_PC(1); |
---|
| 1495 | |
---|
| 1496 | case INST_INCR_ARRAY1: |
---|
| 1497 | { |
---|
| 1498 | Tcl_Obj *elemPtr; |
---|
| 1499 | |
---|
| 1500 | opnd = TclGetUInt1AtPtr(pc+1); |
---|
| 1501 | valuePtr = POP_OBJECT(); |
---|
| 1502 | elemPtr = POP_OBJECT(); |
---|
| 1503 | if (valuePtr->typePtr != &tclIntType) { |
---|
| 1504 | result = tclIntType.setFromAnyProc(interp, valuePtr); |
---|
| 1505 | if (result != TCL_OK) { |
---|
| 1506 | TRACE_WITH_OBJ(("incrArray1 %u \"%.30s\" (by %s) => ERROR converting increment amount to int: ", |
---|
| 1507 | opnd, O2S(elemPtr), O2S(valuePtr)), |
---|
| 1508 | Tcl_GetObjResult(interp)); |
---|
| 1509 | Tcl_DecrRefCount(elemPtr); |
---|
| 1510 | Tcl_DecrRefCount(valuePtr); |
---|
| 1511 | goto checkForCatch; |
---|
| 1512 | } |
---|
| 1513 | } |
---|
| 1514 | i = valuePtr->internalRep.longValue; |
---|
| 1515 | DECACHE_STACK_INFO(); |
---|
| 1516 | value2Ptr = TclIncrElementOfIndexedArray(interp, opnd, |
---|
| 1517 | elemPtr, i); |
---|
| 1518 | CACHE_STACK_INFO(); |
---|
| 1519 | if (value2Ptr == NULL) { |
---|
| 1520 | TRACE_WITH_OBJ(("incrArray1 %u \"%.30s\" (by %ld) => ERROR: ", |
---|
| 1521 | opnd, O2S(elemPtr), i), |
---|
| 1522 | Tcl_GetObjResult(interp)); |
---|
| 1523 | Tcl_DecrRefCount(elemPtr); |
---|
| 1524 | Tcl_DecrRefCount(valuePtr); |
---|
| 1525 | result = TCL_ERROR; |
---|
| 1526 | goto checkForCatch; |
---|
| 1527 | } |
---|
| 1528 | PUSH_OBJECT(value2Ptr); |
---|
| 1529 | TRACE_WITH_OBJ(("incrArray1 %u \"%.30s\" (by %ld) => ", |
---|
| 1530 | opnd, O2S(elemPtr), i), value2Ptr); |
---|
| 1531 | Tcl_DecrRefCount(elemPtr); |
---|
| 1532 | Tcl_DecrRefCount(valuePtr); |
---|
| 1533 | } |
---|
| 1534 | ADJUST_PC(2); |
---|
| 1535 | |
---|
| 1536 | case INST_INCR_ARRAY_STK: |
---|
| 1537 | { |
---|
| 1538 | Tcl_Obj *elemPtr; |
---|
| 1539 | |
---|
| 1540 | valuePtr = POP_OBJECT(); |
---|
| 1541 | elemPtr = POP_OBJECT(); |
---|
| 1542 | namePtr = POP_OBJECT(); |
---|
| 1543 | if (valuePtr->typePtr != &tclIntType) { |
---|
| 1544 | result = tclIntType.setFromAnyProc(interp, valuePtr); |
---|
| 1545 | if (result != TCL_OK) { |
---|
| 1546 | TRACE_WITH_OBJ(("incrArrayStk \"%.30s(%.30s)\" (by %s) => ERROR converting increment amount to int: ", |
---|
| 1547 | O2S(namePtr), O2S(elemPtr), O2S(valuePtr)), |
---|
| 1548 | Tcl_GetObjResult(interp)); |
---|
| 1549 | Tcl_DecrRefCount(namePtr); |
---|
| 1550 | Tcl_DecrRefCount(elemPtr); |
---|
| 1551 | Tcl_DecrRefCount(valuePtr); |
---|
| 1552 | goto checkForCatch; |
---|
| 1553 | } |
---|
| 1554 | } |
---|
| 1555 | i = valuePtr->internalRep.longValue; |
---|
| 1556 | DECACHE_STACK_INFO(); |
---|
| 1557 | value2Ptr = TclIncrVar2(interp, namePtr, elemPtr, i, |
---|
| 1558 | /*part1NotParsed*/ 0); |
---|
| 1559 | CACHE_STACK_INFO(); |
---|
| 1560 | if (value2Ptr == NULL) { |
---|
| 1561 | TRACE_WITH_OBJ(("incrArrayStk \"%.30s(%.30s)\" (by %ld) => ERROR: ", |
---|
| 1562 | O2S(namePtr), O2S(elemPtr), i), |
---|
| 1563 | Tcl_GetObjResult(interp)); |
---|
| 1564 | Tcl_DecrRefCount(namePtr); |
---|
| 1565 | Tcl_DecrRefCount(elemPtr); |
---|
| 1566 | Tcl_DecrRefCount(valuePtr); |
---|
| 1567 | result = TCL_ERROR; |
---|
| 1568 | goto checkForCatch; |
---|
| 1569 | } |
---|
| 1570 | PUSH_OBJECT(value2Ptr); |
---|
| 1571 | TRACE_WITH_OBJ(("incrArrayStk \"%.30s(%.30s)\" (by %ld) => ", |
---|
| 1572 | O2S(namePtr), O2S(elemPtr), i), value2Ptr); |
---|
| 1573 | Tcl_DecrRefCount(namePtr); |
---|
| 1574 | Tcl_DecrRefCount(elemPtr); |
---|
| 1575 | Tcl_DecrRefCount(valuePtr); |
---|
| 1576 | } |
---|
| 1577 | ADJUST_PC(1); |
---|
| 1578 | |
---|
| 1579 | case INST_INCR_SCALAR1_IMM: |
---|
| 1580 | opnd = TclGetUInt1AtPtr(pc+1); |
---|
| 1581 | i = TclGetInt1AtPtr(pc+2); |
---|
| 1582 | DECACHE_STACK_INFO(); |
---|
| 1583 | value2Ptr = TclIncrIndexedScalar(interp, opnd, i); |
---|
| 1584 | CACHE_STACK_INFO(); |
---|
| 1585 | if (value2Ptr == NULL) { |
---|
| 1586 | TRACE_WITH_OBJ(("incrScalar1Imm %u %ld => ERROR: ", |
---|
| 1587 | opnd, i), Tcl_GetObjResult(interp)); |
---|
| 1588 | result = TCL_ERROR; |
---|
| 1589 | goto checkForCatch; |
---|
| 1590 | } |
---|
| 1591 | PUSH_OBJECT(value2Ptr); |
---|
| 1592 | TRACE_WITH_OBJ(("incrScalar1Imm %u %ld => ", opnd, i), |
---|
| 1593 | value2Ptr); |
---|
| 1594 | ADJUST_PC(3); |
---|
| 1595 | |
---|
| 1596 | case INST_INCR_SCALAR_STK_IMM: |
---|
| 1597 | case INST_INCR_STK_IMM: |
---|
| 1598 | namePtr = POP_OBJECT(); |
---|
| 1599 | i = TclGetInt1AtPtr(pc+1); |
---|
| 1600 | DECACHE_STACK_INFO(); |
---|
| 1601 | value2Ptr = TclIncrVar2(interp, namePtr, (Tcl_Obj *) NULL, i, |
---|
| 1602 | /*part1NotParsed*/ (opCode == INST_INCR_STK_IMM)); |
---|
| 1603 | CACHE_STACK_INFO(); |
---|
| 1604 | if (value2Ptr == NULL) { |
---|
| 1605 | TRACE_WITH_OBJ(("%s \"%.30s\" %ld => ERROR: ", |
---|
| 1606 | opName[opCode], O2S(namePtr), i), |
---|
| 1607 | Tcl_GetObjResult(interp)); |
---|
| 1608 | result = TCL_ERROR; |
---|
| 1609 | Tcl_DecrRefCount(namePtr); |
---|
| 1610 | goto checkForCatch; |
---|
| 1611 | } |
---|
| 1612 | PUSH_OBJECT(value2Ptr); |
---|
| 1613 | TRACE_WITH_OBJ(("%s \"%.30s\" %ld => ", |
---|
| 1614 | opName[opCode], O2S(namePtr), i), value2Ptr); |
---|
| 1615 | TclDecrRefCount(namePtr); |
---|
| 1616 | ADJUST_PC(2); |
---|
| 1617 | |
---|
| 1618 | case INST_INCR_ARRAY1_IMM: |
---|
| 1619 | { |
---|
| 1620 | Tcl_Obj *elemPtr; |
---|
| 1621 | |
---|
| 1622 | opnd = TclGetUInt1AtPtr(pc+1); |
---|
| 1623 | i = TclGetInt1AtPtr(pc+2); |
---|
| 1624 | elemPtr = POP_OBJECT(); |
---|
| 1625 | DECACHE_STACK_INFO(); |
---|
| 1626 | value2Ptr = TclIncrElementOfIndexedArray(interp, opnd, |
---|
| 1627 | elemPtr, i); |
---|
| 1628 | CACHE_STACK_INFO(); |
---|
| 1629 | if (value2Ptr == NULL) { |
---|
| 1630 | TRACE_WITH_OBJ(("incrArray1Imm %u \"%.30s\" (by %ld) => ERROR: ", |
---|
| 1631 | opnd, O2S(elemPtr), i), |
---|
| 1632 | Tcl_GetObjResult(interp)); |
---|
| 1633 | Tcl_DecrRefCount(elemPtr); |
---|
| 1634 | result = TCL_ERROR; |
---|
| 1635 | goto checkForCatch; |
---|
| 1636 | } |
---|
| 1637 | PUSH_OBJECT(value2Ptr); |
---|
| 1638 | TRACE_WITH_OBJ(("incrArray1Imm %u \"%.30s\" (by %ld) => ", |
---|
| 1639 | opnd, O2S(elemPtr), i), value2Ptr); |
---|
| 1640 | Tcl_DecrRefCount(elemPtr); |
---|
| 1641 | } |
---|
| 1642 | ADJUST_PC(3); |
---|
| 1643 | |
---|
| 1644 | case INST_INCR_ARRAY_STK_IMM: |
---|
| 1645 | { |
---|
| 1646 | Tcl_Obj *elemPtr; |
---|
| 1647 | |
---|
| 1648 | i = TclGetInt1AtPtr(pc+1); |
---|
| 1649 | elemPtr = POP_OBJECT(); |
---|
| 1650 | namePtr = POP_OBJECT(); |
---|
| 1651 | DECACHE_STACK_INFO(); |
---|
| 1652 | value2Ptr = TclIncrVar2(interp, namePtr, elemPtr, i, |
---|
| 1653 | /*part1NotParsed*/ 0); |
---|
| 1654 | CACHE_STACK_INFO(); |
---|
| 1655 | if (value2Ptr == NULL) { |
---|
| 1656 | TRACE_WITH_OBJ(("incrArrayStkImm \"%.30s(%.30s)\" (by %ld) => ERROR: ", |
---|
| 1657 | O2S(namePtr), O2S(elemPtr), i), |
---|
| 1658 | Tcl_GetObjResult(interp)); |
---|
| 1659 | Tcl_DecrRefCount(namePtr); |
---|
| 1660 | Tcl_DecrRefCount(elemPtr); |
---|
| 1661 | result = TCL_ERROR; |
---|
| 1662 | goto checkForCatch; |
---|
| 1663 | } |
---|
| 1664 | PUSH_OBJECT(value2Ptr); |
---|
| 1665 | TRACE_WITH_OBJ(("incrArrayStkImm \"%.30s(%.30s)\" (by %ld) => ", |
---|
| 1666 | O2S(namePtr), O2S(elemPtr), i), value2Ptr); |
---|
| 1667 | Tcl_DecrRefCount(namePtr); |
---|
| 1668 | Tcl_DecrRefCount(elemPtr); |
---|
| 1669 | } |
---|
| 1670 | ADJUST_PC(2); |
---|
| 1671 | |
---|
| 1672 | case INST_JUMP1: |
---|
| 1673 | opnd = TclGetInt1AtPtr(pc+1); |
---|
| 1674 | TRACE(("jump1 %d => new pc %u\n", opnd, |
---|
| 1675 | (unsigned int)(pc + opnd - codePtr->codeStart))); |
---|
| 1676 | ADJUST_PC(opnd); |
---|
| 1677 | |
---|
| 1678 | case INST_JUMP4: |
---|
| 1679 | opnd = TclGetInt4AtPtr(pc+1); |
---|
| 1680 | TRACE(("jump4 %d => new pc %u\n", opnd, |
---|
| 1681 | (unsigned int)(pc + opnd - codePtr->codeStart))); |
---|
| 1682 | ADJUST_PC(opnd); |
---|
| 1683 | |
---|
| 1684 | case INST_JUMP_TRUE4: |
---|
| 1685 | opnd = TclGetInt4AtPtr(pc+1); |
---|
| 1686 | pcAdjustment = 5; |
---|
| 1687 | goto doJumpTrue; |
---|
| 1688 | |
---|
| 1689 | case INST_JUMP_TRUE1: |
---|
| 1690 | opnd = TclGetInt1AtPtr(pc+1); |
---|
| 1691 | pcAdjustment = 2; |
---|
| 1692 | |
---|
| 1693 | doJumpTrue: |
---|
| 1694 | { |
---|
| 1695 | int b; |
---|
| 1696 | |
---|
| 1697 | valuePtr = POP_OBJECT(); |
---|
| 1698 | if (valuePtr->typePtr == &tclIntType) { |
---|
| 1699 | b = (valuePtr->internalRep.longValue != 0); |
---|
| 1700 | } else if (valuePtr->typePtr == &tclDoubleType) { |
---|
| 1701 | b = (valuePtr->internalRep.doubleValue != 0.0); |
---|
| 1702 | } else { |
---|
| 1703 | result = Tcl_GetBooleanFromObj(interp, valuePtr, &b); |
---|
| 1704 | if (result != TCL_OK) { |
---|
| 1705 | TRACE_WITH_OBJ(("%s %d => ERROR: ", opName[opCode], |
---|
| 1706 | opnd), Tcl_GetObjResult(interp)); |
---|
| 1707 | Tcl_DecrRefCount(valuePtr); |
---|
| 1708 | goto checkForCatch; |
---|
| 1709 | } |
---|
| 1710 | } |
---|
| 1711 | if (b) { |
---|
| 1712 | TRACE(("%s %d => %.20s true, new pc %u\n", |
---|
| 1713 | opName[opCode], opnd, O2S(valuePtr), |
---|
| 1714 | (unsigned int)(pc+opnd - codePtr->codeStart))); |
---|
| 1715 | TclDecrRefCount(valuePtr); |
---|
| 1716 | ADJUST_PC(opnd); |
---|
| 1717 | } else { |
---|
| 1718 | TRACE(("%s %d => %.20s false\n", opName[opCode], opnd, |
---|
| 1719 | O2S(valuePtr))); |
---|
| 1720 | TclDecrRefCount(valuePtr); |
---|
| 1721 | ADJUST_PC(pcAdjustment); |
---|
| 1722 | } |
---|
| 1723 | } |
---|
| 1724 | |
---|
| 1725 | case INST_JUMP_FALSE4: |
---|
| 1726 | opnd = TclGetInt4AtPtr(pc+1); |
---|
| 1727 | pcAdjustment = 5; |
---|
| 1728 | goto doJumpFalse; |
---|
| 1729 | |
---|
| 1730 | case INST_JUMP_FALSE1: |
---|
| 1731 | opnd = TclGetInt1AtPtr(pc+1); |
---|
| 1732 | pcAdjustment = 2; |
---|
| 1733 | |
---|
| 1734 | doJumpFalse: |
---|
| 1735 | { |
---|
| 1736 | int b; |
---|
| 1737 | |
---|
| 1738 | valuePtr = POP_OBJECT(); |
---|
| 1739 | if (valuePtr->typePtr == &tclIntType) { |
---|
| 1740 | b = (valuePtr->internalRep.longValue != 0); |
---|
| 1741 | } else if (valuePtr->typePtr == &tclDoubleType) { |
---|
| 1742 | b = (valuePtr->internalRep.doubleValue != 0.0); |
---|
| 1743 | } else { |
---|
| 1744 | result = Tcl_GetBooleanFromObj(interp, valuePtr, &b); |
---|
| 1745 | if (result != TCL_OK) { |
---|
| 1746 | TRACE_WITH_OBJ(("%s %d => ERROR: ", opName[opCode], |
---|
| 1747 | opnd), Tcl_GetObjResult(interp)); |
---|
| 1748 | Tcl_DecrRefCount(valuePtr); |
---|
| 1749 | goto checkForCatch; |
---|
| 1750 | } |
---|
| 1751 | } |
---|
| 1752 | if (b) { |
---|
| 1753 | TRACE(("%s %d => %.20s true\n", opName[opCode], opnd, |
---|
| 1754 | O2S(valuePtr))); |
---|
| 1755 | TclDecrRefCount(valuePtr); |
---|
| 1756 | ADJUST_PC(pcAdjustment); |
---|
| 1757 | } else { |
---|
| 1758 | TRACE(("%s %d => %.20s false, new pc %u\n", |
---|
| 1759 | opName[opCode], opnd, O2S(valuePtr), |
---|
| 1760 | (unsigned int)(pc + opnd - codePtr->codeStart))); |
---|
| 1761 | TclDecrRefCount(valuePtr); |
---|
| 1762 | ADJUST_PC(opnd); |
---|
| 1763 | } |
---|
| 1764 | } |
---|
| 1765 | |
---|
| 1766 | case INST_LOR: |
---|
| 1767 | case INST_LAND: |
---|
| 1768 | { |
---|
| 1769 | /* |
---|
| 1770 | * Operands must be boolean or numeric. No int->double |
---|
| 1771 | * conversions are performed. |
---|
| 1772 | */ |
---|
| 1773 | |
---|
| 1774 | int i1, i2; |
---|
| 1775 | int iResult; |
---|
| 1776 | char *s; |
---|
| 1777 | Tcl_ObjType *t1Ptr, *t2Ptr; |
---|
| 1778 | |
---|
| 1779 | value2Ptr = POP_OBJECT(); |
---|
| 1780 | valuePtr = POP_OBJECT(); |
---|
| 1781 | t1Ptr = valuePtr->typePtr; |
---|
| 1782 | t2Ptr = value2Ptr->typePtr; |
---|
| 1783 | |
---|
| 1784 | if ((t1Ptr == &tclIntType) || (t1Ptr == &tclBooleanType)) { |
---|
| 1785 | i1 = (valuePtr->internalRep.longValue != 0); |
---|
| 1786 | } else if (t1Ptr == &tclDoubleType) { |
---|
| 1787 | i1 = (valuePtr->internalRep.doubleValue != 0.0); |
---|
| 1788 | } else { /* FAILS IF NULL STRING REP */ |
---|
| 1789 | s = Tcl_GetStringFromObj(valuePtr, (int *) NULL); |
---|
| 1790 | if (TclLooksLikeInt(s)) { |
---|
| 1791 | result = Tcl_GetLongFromObj((Tcl_Interp *) NULL, |
---|
| 1792 | valuePtr, &i); |
---|
| 1793 | i1 = (i != 0); |
---|
| 1794 | } else { |
---|
| 1795 | result = Tcl_GetBooleanFromObj((Tcl_Interp *) NULL, |
---|
| 1796 | valuePtr, &i1); |
---|
| 1797 | i1 = (i1 != 0); |
---|
| 1798 | } |
---|
| 1799 | if (result != TCL_OK) { |
---|
| 1800 | TRACE(("%s \"%.20s\" => ILLEGAL TYPE %s \n", |
---|
| 1801 | opName[opCode], O2S(valuePtr), |
---|
| 1802 | (t1Ptr? t1Ptr->name : "null"))); |
---|
| 1803 | IllegalExprOperandType(interp, opCode, valuePtr); |
---|
| 1804 | Tcl_DecrRefCount(valuePtr); |
---|
| 1805 | Tcl_DecrRefCount(value2Ptr); |
---|
| 1806 | goto checkForCatch; |
---|
| 1807 | } |
---|
| 1808 | } |
---|
| 1809 | |
---|
| 1810 | if ((t2Ptr == &tclIntType) || (t2Ptr == &tclBooleanType)) { |
---|
| 1811 | i2 = (value2Ptr->internalRep.longValue != 0); |
---|
| 1812 | } else if (t2Ptr == &tclDoubleType) { |
---|
| 1813 | i2 = (value2Ptr->internalRep.doubleValue != 0.0); |
---|
| 1814 | } else { /* FAILS IF NULL STRING REP */ |
---|
| 1815 | s = Tcl_GetStringFromObj(value2Ptr, (int *) NULL); |
---|
| 1816 | if (TclLooksLikeInt(s)) { |
---|
| 1817 | result = Tcl_GetLongFromObj((Tcl_Interp *) NULL, |
---|
| 1818 | value2Ptr, &i); |
---|
| 1819 | i2 = (i != 0); |
---|
| 1820 | } else { |
---|
| 1821 | result = Tcl_GetBooleanFromObj((Tcl_Interp *) NULL, |
---|
| 1822 | value2Ptr, &i2); |
---|
| 1823 | i2 = (i2 != 0); |
---|
| 1824 | } |
---|
| 1825 | if (result != TCL_OK) { |
---|
| 1826 | TRACE(("%s \"%.20s\" => ILLEGAL TYPE %s \n", |
---|
| 1827 | opName[opCode], O2S(value2Ptr), |
---|
| 1828 | (t2Ptr? t2Ptr->name : "null"))); |
---|
| 1829 | IllegalExprOperandType(interp, opCode, value2Ptr); |
---|
| 1830 | Tcl_DecrRefCount(valuePtr); |
---|
| 1831 | Tcl_DecrRefCount(value2Ptr); |
---|
| 1832 | goto checkForCatch; |
---|
| 1833 | } |
---|
| 1834 | } |
---|
| 1835 | |
---|
| 1836 | /* |
---|
| 1837 | * Reuse the valuePtr object already on stack if possible. |
---|
| 1838 | */ |
---|
| 1839 | |
---|
| 1840 | if (opCode == INST_LOR) { |
---|
| 1841 | iResult = (i1 || i2); |
---|
| 1842 | } else { |
---|
| 1843 | iResult = (i1 && i2); |
---|
| 1844 | } |
---|
| 1845 | if (Tcl_IsShared(valuePtr)) { |
---|
| 1846 | PUSH_OBJECT(Tcl_NewLongObj(iResult)); |
---|
| 1847 | TRACE(("%s %.20s %.20s => %d\n", opName[opCode], |
---|
| 1848 | O2S(valuePtr), O2S(value2Ptr), iResult)); |
---|
| 1849 | TclDecrRefCount(valuePtr); |
---|
| 1850 | } else { /* reuse the valuePtr object */ |
---|
| 1851 | TRACE(("%s %.20s %.20s => %d\n", |
---|
| 1852 | opName[opCode], /* NB: stack top is off by 1 */ |
---|
| 1853 | O2S(valuePtr), O2S(value2Ptr), iResult)); |
---|
| 1854 | Tcl_SetLongObj(valuePtr, iResult); |
---|
| 1855 | ++stackTop; /* valuePtr now on stk top has right r.c. */ |
---|
| 1856 | } |
---|
| 1857 | TclDecrRefCount(value2Ptr); |
---|
| 1858 | } |
---|
| 1859 | ADJUST_PC(1); |
---|
| 1860 | |
---|
| 1861 | case INST_EQ: |
---|
| 1862 | case INST_NEQ: |
---|
| 1863 | case INST_LT: |
---|
| 1864 | case INST_GT: |
---|
| 1865 | case INST_LE: |
---|
| 1866 | case INST_GE: |
---|
| 1867 | { |
---|
| 1868 | /* |
---|
| 1869 | * Any type is allowed but the two operands must have the |
---|
| 1870 | * same type. We will compute value op value2. |
---|
| 1871 | */ |
---|
| 1872 | |
---|
| 1873 | Tcl_ObjType *t1Ptr, *t2Ptr; |
---|
| 1874 | char *s1 = NULL; /* Init. avoids compiler warning. */ |
---|
| 1875 | char *s2 = NULL; /* Init. avoids compiler warning. */ |
---|
| 1876 | long i2 = 0; /* Init. avoids compiler warning. */ |
---|
| 1877 | double d1 = 0.0; /* Init. avoids compiler warning. */ |
---|
| 1878 | double d2 = 0.0; /* Init. avoids compiler warning. */ |
---|
| 1879 | long iResult = 0; /* Init. avoids compiler warning. */ |
---|
| 1880 | |
---|
| 1881 | value2Ptr = POP_OBJECT(); |
---|
| 1882 | valuePtr = POP_OBJECT(); |
---|
| 1883 | t1Ptr = valuePtr->typePtr; |
---|
| 1884 | t2Ptr = value2Ptr->typePtr; |
---|
| 1885 | |
---|
| 1886 | if ((t1Ptr != &tclIntType) && (t1Ptr != &tclDoubleType)) { |
---|
| 1887 | s1 = Tcl_GetStringFromObj(valuePtr, &length); |
---|
| 1888 | if (TclLooksLikeInt(s1)) { /* FAILS IF NULLS */ |
---|
| 1889 | (void) Tcl_GetLongFromObj((Tcl_Interp *) NULL, |
---|
| 1890 | valuePtr, &i); |
---|
| 1891 | } else { |
---|
| 1892 | (void) Tcl_GetDoubleFromObj((Tcl_Interp *) NULL, |
---|
| 1893 | valuePtr, &d1); |
---|
| 1894 | } |
---|
| 1895 | t1Ptr = valuePtr->typePtr; |
---|
| 1896 | } |
---|
| 1897 | if ((t2Ptr != &tclIntType) && (t2Ptr != &tclDoubleType)) { |
---|
| 1898 | s2 = Tcl_GetStringFromObj(value2Ptr, &length); |
---|
| 1899 | if (TclLooksLikeInt(s2)) { /* FAILS IF NULLS */ |
---|
| 1900 | (void) Tcl_GetLongFromObj((Tcl_Interp *) NULL, |
---|
| 1901 | value2Ptr, &i2); |
---|
| 1902 | } else { |
---|
| 1903 | (void) Tcl_GetDoubleFromObj((Tcl_Interp *) NULL, |
---|
| 1904 | value2Ptr, &d2); |
---|
| 1905 | } |
---|
| 1906 | t2Ptr = value2Ptr->typePtr; |
---|
| 1907 | } |
---|
| 1908 | |
---|
| 1909 | if (((t1Ptr != &tclIntType) && (t1Ptr != &tclDoubleType)) |
---|
| 1910 | || ((t2Ptr != &tclIntType) && (t2Ptr != &tclDoubleType))) { |
---|
| 1911 | /* |
---|
| 1912 | * One operand is not numeric. Compare as strings. |
---|
| 1913 | * THIS FAILS IF AN OBJECT'S STRING REP CONTAINS NULLS. |
---|
| 1914 | */ |
---|
| 1915 | int cmpValue; |
---|
| 1916 | s1 = TclGetStringFromObj(valuePtr, &length); |
---|
| 1917 | s2 = TclGetStringFromObj(value2Ptr, &length); |
---|
| 1918 | cmpValue = strcmp(s1, s2); |
---|
| 1919 | switch (opCode) { |
---|
| 1920 | case INST_EQ: |
---|
| 1921 | iResult = (cmpValue == 0); |
---|
| 1922 | break; |
---|
| 1923 | case INST_NEQ: |
---|
| 1924 | iResult = (cmpValue != 0); |
---|
| 1925 | break; |
---|
| 1926 | case INST_LT: |
---|
| 1927 | iResult = (cmpValue < 0); |
---|
| 1928 | break; |
---|
| 1929 | case INST_GT: |
---|
| 1930 | iResult = (cmpValue > 0); |
---|
| 1931 | break; |
---|
| 1932 | case INST_LE: |
---|
| 1933 | iResult = (cmpValue <= 0); |
---|
| 1934 | break; |
---|
| 1935 | case INST_GE: |
---|
| 1936 | iResult = (cmpValue >= 0); |
---|
| 1937 | break; |
---|
| 1938 | } |
---|
| 1939 | } else if ((t1Ptr == &tclDoubleType) |
---|
| 1940 | || (t2Ptr == &tclDoubleType)) { |
---|
| 1941 | /* |
---|
| 1942 | * Compare as doubles. |
---|
| 1943 | */ |
---|
| 1944 | if (t1Ptr == &tclDoubleType) { |
---|
| 1945 | d1 = valuePtr->internalRep.doubleValue; |
---|
| 1946 | if (t2Ptr == &tclIntType) { |
---|
| 1947 | d2 = value2Ptr->internalRep.longValue; |
---|
| 1948 | } else { |
---|
| 1949 | d2 = value2Ptr->internalRep.doubleValue; |
---|
| 1950 | } |
---|
| 1951 | } else { /* t1Ptr is int, t2Ptr is double */ |
---|
| 1952 | d1 = valuePtr->internalRep.longValue; |
---|
| 1953 | d2 = value2Ptr->internalRep.doubleValue; |
---|
| 1954 | } |
---|
| 1955 | switch (opCode) { |
---|
| 1956 | case INST_EQ: |
---|
| 1957 | iResult = d1 == d2; |
---|
| 1958 | break; |
---|
| 1959 | case INST_NEQ: |
---|
| 1960 | iResult = d1 != d2; |
---|
| 1961 | break; |
---|
| 1962 | case INST_LT: |
---|
| 1963 | iResult = d1 < d2; |
---|
| 1964 | break; |
---|
| 1965 | case INST_GT: |
---|
| 1966 | iResult = d1 > d2; |
---|
| 1967 | break; |
---|
| 1968 | case INST_LE: |
---|
| 1969 | iResult = d1 <= d2; |
---|
| 1970 | break; |
---|
| 1971 | case INST_GE: |
---|
| 1972 | iResult = d1 >= d2; |
---|
| 1973 | break; |
---|
| 1974 | } |
---|
| 1975 | } else { |
---|
| 1976 | /* |
---|
| 1977 | * Compare as ints. |
---|
| 1978 | */ |
---|
| 1979 | i = valuePtr->internalRep.longValue; |
---|
| 1980 | i2 = value2Ptr->internalRep.longValue; |
---|
| 1981 | switch (opCode) { |
---|
| 1982 | case INST_EQ: |
---|
| 1983 | iResult = i == i2; |
---|
| 1984 | break; |
---|
| 1985 | case INST_NEQ: |
---|
| 1986 | iResult = i != i2; |
---|
| 1987 | break; |
---|
| 1988 | case INST_LT: |
---|
| 1989 | iResult = i < i2; |
---|
| 1990 | break; |
---|
| 1991 | case INST_GT: |
---|
| 1992 | iResult = i > i2; |
---|
| 1993 | break; |
---|
| 1994 | case INST_LE: |
---|
| 1995 | iResult = i <= i2; |
---|
| 1996 | break; |
---|
| 1997 | case INST_GE: |
---|
| 1998 | iResult = i >= i2; |
---|
| 1999 | break; |
---|
| 2000 | } |
---|
| 2001 | } |
---|
| 2002 | |
---|
| 2003 | /* |
---|
| 2004 | * Reuse the valuePtr object already on stack if possible. |
---|
| 2005 | */ |
---|
| 2006 | |
---|
| 2007 | if (Tcl_IsShared(valuePtr)) { |
---|
| 2008 | PUSH_OBJECT(Tcl_NewLongObj(iResult)); |
---|
| 2009 | TRACE(("%s %.20s %.20s => %ld\n", opName[opCode], |
---|
| 2010 | O2S(valuePtr), O2S(value2Ptr), iResult)); |
---|
| 2011 | TclDecrRefCount(valuePtr); |
---|
| 2012 | } else { /* reuse the valuePtr object */ |
---|
| 2013 | TRACE(("%s %.20s %.20s => %ld\n", |
---|
| 2014 | opName[opCode], /* NB: stack top is off by 1 */ |
---|
| 2015 | O2S(valuePtr), O2S(value2Ptr), iResult)); |
---|
| 2016 | Tcl_SetLongObj(valuePtr, iResult); |
---|
| 2017 | ++stackTop; /* valuePtr now on stk top has right r.c. */ |
---|
| 2018 | } |
---|
| 2019 | TclDecrRefCount(value2Ptr); |
---|
| 2020 | } |
---|
| 2021 | ADJUST_PC(1); |
---|
| 2022 | |
---|
| 2023 | case INST_MOD: |
---|
| 2024 | case INST_LSHIFT: |
---|
| 2025 | case INST_RSHIFT: |
---|
| 2026 | case INST_BITOR: |
---|
| 2027 | case INST_BITXOR: |
---|
| 2028 | case INST_BITAND: |
---|
| 2029 | { |
---|
| 2030 | /* |
---|
| 2031 | * Only integers are allowed. We compute value op value2. |
---|
| 2032 | */ |
---|
| 2033 | |
---|
| 2034 | long i2, rem, negative; |
---|
| 2035 | long iResult = 0; /* Init. avoids compiler warning. */ |
---|
| 2036 | |
---|
| 2037 | value2Ptr = POP_OBJECT(); |
---|
| 2038 | valuePtr = POP_OBJECT(); |
---|
| 2039 | if (valuePtr->typePtr == &tclIntType) { |
---|
| 2040 | i = valuePtr->internalRep.longValue; |
---|
| 2041 | } else { /* try to convert to int */ |
---|
| 2042 | result = Tcl_GetLongFromObj((Tcl_Interp *) NULL, |
---|
| 2043 | valuePtr, &i); |
---|
| 2044 | if (result != TCL_OK) { |
---|
| 2045 | TRACE(("%s %.20s %.20s => ILLEGAL 1st TYPE %s\n", |
---|
| 2046 | opName[opCode], O2S(valuePtr), O2S(value2Ptr), |
---|
| 2047 | (valuePtr->typePtr? |
---|
| 2048 | valuePtr->typePtr->name : "null"))); |
---|
| 2049 | IllegalExprOperandType(interp, opCode, valuePtr); |
---|
| 2050 | Tcl_DecrRefCount(valuePtr); |
---|
| 2051 | Tcl_DecrRefCount(value2Ptr); |
---|
| 2052 | goto checkForCatch; |
---|
| 2053 | } |
---|
| 2054 | } |
---|
| 2055 | if (value2Ptr->typePtr == &tclIntType) { |
---|
| 2056 | i2 = value2Ptr->internalRep.longValue; |
---|
| 2057 | } else { |
---|
| 2058 | result = Tcl_GetLongFromObj((Tcl_Interp *) NULL, |
---|
| 2059 | value2Ptr, &i2); |
---|
| 2060 | if (result != TCL_OK) { |
---|
| 2061 | TRACE(("%s %.20s %.20s => ILLEGAL 2nd TYPE %s\n", |
---|
| 2062 | opName[opCode], O2S(valuePtr), O2S(value2Ptr), |
---|
| 2063 | (value2Ptr->typePtr? |
---|
| 2064 | value2Ptr->typePtr->name : "null"))); |
---|
| 2065 | IllegalExprOperandType(interp, opCode, value2Ptr); |
---|
| 2066 | Tcl_DecrRefCount(valuePtr); |
---|
| 2067 | Tcl_DecrRefCount(value2Ptr); |
---|
| 2068 | goto checkForCatch; |
---|
| 2069 | } |
---|
| 2070 | } |
---|
| 2071 | |
---|
| 2072 | switch (opCode) { |
---|
| 2073 | case INST_MOD: |
---|
| 2074 | /* |
---|
| 2075 | * This code is tricky: C doesn't guarantee much about |
---|
| 2076 | * the quotient or remainder, but Tcl does. The |
---|
| 2077 | * remainder always has the same sign as the divisor and |
---|
| 2078 | * a smaller absolute value. |
---|
| 2079 | */ |
---|
| 2080 | if (i2 == 0) { |
---|
| 2081 | TRACE(("mod %ld %ld => DIVIDE BY ZERO\n", i, i2)); |
---|
| 2082 | Tcl_DecrRefCount(valuePtr); |
---|
| 2083 | Tcl_DecrRefCount(value2Ptr); |
---|
| 2084 | goto divideByZero; |
---|
| 2085 | } |
---|
| 2086 | negative = 0; |
---|
| 2087 | if (i2 < 0) { |
---|
| 2088 | i2 = -i2; |
---|
| 2089 | i = -i; |
---|
| 2090 | negative = 1; |
---|
| 2091 | } |
---|
| 2092 | rem = i % i2; |
---|
| 2093 | if (rem < 0) { |
---|
| 2094 | rem += i2; |
---|
| 2095 | } |
---|
| 2096 | if (negative) { |
---|
| 2097 | rem = -rem; |
---|
| 2098 | } |
---|
| 2099 | iResult = rem; |
---|
| 2100 | break; |
---|
| 2101 | case INST_LSHIFT: |
---|
| 2102 | iResult = i << i2; |
---|
| 2103 | break; |
---|
| 2104 | case INST_RSHIFT: |
---|
| 2105 | /* |
---|
| 2106 | * The following code is a bit tricky: it ensures that |
---|
| 2107 | * right shifts propagate the sign bit even on machines |
---|
| 2108 | * where ">>" won't do it by default. |
---|
| 2109 | */ |
---|
| 2110 | if (i < 0) { |
---|
| 2111 | iResult = ~((~i) >> i2); |
---|
| 2112 | } else { |
---|
| 2113 | iResult = i >> i2; |
---|
| 2114 | } |
---|
| 2115 | break; |
---|
| 2116 | case INST_BITOR: |
---|
| 2117 | iResult = i | i2; |
---|
| 2118 | break; |
---|
| 2119 | case INST_BITXOR: |
---|
| 2120 | iResult = i ^ i2; |
---|
| 2121 | break; |
---|
| 2122 | case INST_BITAND: |
---|
| 2123 | iResult = i & i2; |
---|
| 2124 | break; |
---|
| 2125 | } |
---|
| 2126 | |
---|
| 2127 | /* |
---|
| 2128 | * Reuse the valuePtr object already on stack if possible. |
---|
| 2129 | */ |
---|
| 2130 | |
---|
| 2131 | if (Tcl_IsShared(valuePtr)) { |
---|
| 2132 | PUSH_OBJECT(Tcl_NewLongObj(iResult)); |
---|
| 2133 | TRACE(("%s %ld %ld => %ld\n", opName[opCode], i, i2, |
---|
| 2134 | iResult)); |
---|
| 2135 | TclDecrRefCount(valuePtr); |
---|
| 2136 | } else { /* reuse the valuePtr object */ |
---|
| 2137 | TRACE(("%s %ld %ld => %ld\n", opName[opCode], i, i2, |
---|
| 2138 | iResult)); /* NB: stack top is off by 1 */ |
---|
| 2139 | Tcl_SetLongObj(valuePtr, iResult); |
---|
| 2140 | ++stackTop; /* valuePtr now on stk top has right r.c. */ |
---|
| 2141 | } |
---|
| 2142 | TclDecrRefCount(value2Ptr); |
---|
| 2143 | } |
---|
| 2144 | ADJUST_PC(1); |
---|
| 2145 | |
---|
| 2146 | case INST_ADD: |
---|
| 2147 | case INST_SUB: |
---|
| 2148 | case INST_MULT: |
---|
| 2149 | case INST_DIV: |
---|
| 2150 | { |
---|
| 2151 | /* |
---|
| 2152 | * Operands must be numeric and ints get converted to floats |
---|
| 2153 | * if necessary. We compute value op value2. |
---|
| 2154 | */ |
---|
| 2155 | |
---|
| 2156 | Tcl_ObjType *t1Ptr, *t2Ptr; |
---|
| 2157 | long i2, quot, rem; |
---|
| 2158 | double d1, d2; |
---|
| 2159 | long iResult = 0; /* Init. avoids compiler warning. */ |
---|
| 2160 | double dResult = 0.0; /* Init. avoids compiler warning. */ |
---|
| 2161 | int doDouble = 0; /* 1 if doing floating arithmetic */ |
---|
| 2162 | |
---|
| 2163 | value2Ptr = POP_OBJECT(); |
---|
| 2164 | valuePtr = POP_OBJECT(); |
---|
| 2165 | t1Ptr = valuePtr->typePtr; |
---|
| 2166 | t2Ptr = value2Ptr->typePtr; |
---|
| 2167 | |
---|
| 2168 | if (t1Ptr == &tclIntType) { |
---|
| 2169 | i = valuePtr->internalRep.longValue; |
---|
| 2170 | } else if (t1Ptr == &tclDoubleType) { |
---|
| 2171 | d1 = valuePtr->internalRep.doubleValue; |
---|
| 2172 | } else { /* try to convert; FAILS IF NULLS */ |
---|
| 2173 | char *s = Tcl_GetStringFromObj(valuePtr, &length); |
---|
| 2174 | if (TclLooksLikeInt(s)) { |
---|
| 2175 | result = Tcl_GetLongFromObj((Tcl_Interp *) NULL, |
---|
| 2176 | valuePtr, &i); |
---|
| 2177 | } else { |
---|
| 2178 | result = Tcl_GetDoubleFromObj((Tcl_Interp *) NULL, |
---|
| 2179 | valuePtr, &d1); |
---|
| 2180 | } |
---|
| 2181 | if (result != TCL_OK) { |
---|
| 2182 | TRACE(("%s %.20s %.20s => ILLEGAL 1st TYPE %s\n", |
---|
| 2183 | opName[opCode], s, O2S(value2Ptr), |
---|
| 2184 | (valuePtr->typePtr? |
---|
| 2185 | valuePtr->typePtr->name : "null"))); |
---|
| 2186 | IllegalExprOperandType(interp, opCode, valuePtr); |
---|
| 2187 | Tcl_DecrRefCount(valuePtr); |
---|
| 2188 | Tcl_DecrRefCount(value2Ptr); |
---|
| 2189 | goto checkForCatch; |
---|
| 2190 | } |
---|
| 2191 | t1Ptr = valuePtr->typePtr; |
---|
| 2192 | } |
---|
| 2193 | |
---|
| 2194 | if (t2Ptr == &tclIntType) { |
---|
| 2195 | i2 = value2Ptr->internalRep.longValue; |
---|
| 2196 | } else if (t2Ptr == &tclDoubleType) { |
---|
| 2197 | d2 = value2Ptr->internalRep.doubleValue; |
---|
| 2198 | } else { /* try to convert; FAILS IF NULLS */ |
---|
| 2199 | char *s = Tcl_GetStringFromObj(value2Ptr, &length); |
---|
| 2200 | if (TclLooksLikeInt(s)) { |
---|
| 2201 | result = Tcl_GetLongFromObj((Tcl_Interp *) NULL, |
---|
| 2202 | value2Ptr, &i2); |
---|
| 2203 | } else { |
---|
| 2204 | result = Tcl_GetDoubleFromObj((Tcl_Interp *) NULL, |
---|
| 2205 | value2Ptr, &d2); |
---|
| 2206 | } |
---|
| 2207 | if (result != TCL_OK) { |
---|
| 2208 | TRACE(("%s %.20s %.20s => ILLEGAL 2nd TYPE %s\n", |
---|
| 2209 | opName[opCode], O2S(valuePtr), s, |
---|
| 2210 | (value2Ptr->typePtr? |
---|
| 2211 | value2Ptr->typePtr->name : "null"))); |
---|
| 2212 | IllegalExprOperandType(interp, opCode, value2Ptr); |
---|
| 2213 | Tcl_DecrRefCount(valuePtr); |
---|
| 2214 | Tcl_DecrRefCount(value2Ptr); |
---|
| 2215 | goto checkForCatch; |
---|
| 2216 | } |
---|
| 2217 | t2Ptr = value2Ptr->typePtr; |
---|
| 2218 | } |
---|
| 2219 | |
---|
| 2220 | if ((t1Ptr == &tclDoubleType) || (t2Ptr == &tclDoubleType)) { |
---|
| 2221 | /* |
---|
| 2222 | * Do double arithmetic. |
---|
| 2223 | */ |
---|
| 2224 | doDouble = 1; |
---|
| 2225 | if (t1Ptr == &tclIntType) { |
---|
| 2226 | d1 = i; /* promote value 1 to double */ |
---|
| 2227 | } else if (t2Ptr == &tclIntType) { |
---|
| 2228 | d2 = i2; /* promote value 2 to double */ |
---|
| 2229 | } |
---|
| 2230 | switch (opCode) { |
---|
| 2231 | case INST_ADD: |
---|
| 2232 | dResult = d1 + d2; |
---|
| 2233 | break; |
---|
| 2234 | case INST_SUB: |
---|
| 2235 | dResult = d1 - d2; |
---|
| 2236 | break; |
---|
| 2237 | case INST_MULT: |
---|
| 2238 | dResult = d1 * d2; |
---|
| 2239 | break; |
---|
| 2240 | case INST_DIV: |
---|
| 2241 | if (d2 == 0.0) { |
---|
| 2242 | TRACE(("div %.6g %.6g => DIVIDE BY ZERO\n", |
---|
| 2243 | d1, d2)); |
---|
| 2244 | Tcl_DecrRefCount(valuePtr); |
---|
| 2245 | Tcl_DecrRefCount(value2Ptr); |
---|
| 2246 | goto divideByZero; |
---|
| 2247 | } |
---|
| 2248 | dResult = d1 / d2; |
---|
| 2249 | break; |
---|
| 2250 | } |
---|
| 2251 | |
---|
| 2252 | /* |
---|
| 2253 | * Check now for IEEE floating-point error. |
---|
| 2254 | */ |
---|
| 2255 | |
---|
| 2256 | if (IS_NAN(dResult) || IS_INF(dResult)) { |
---|
| 2257 | TRACE(("%s %.20s %.20s => IEEE FLOATING PT ERROR\n", |
---|
| 2258 | opName[opCode], O2S(valuePtr), O2S(value2Ptr))); |
---|
| 2259 | TclExprFloatError(interp, dResult); |
---|
| 2260 | result = TCL_ERROR; |
---|
| 2261 | Tcl_DecrRefCount(valuePtr); |
---|
| 2262 | Tcl_DecrRefCount(value2Ptr); |
---|
| 2263 | goto checkForCatch; |
---|
| 2264 | } |
---|
| 2265 | } else { |
---|
| 2266 | /* |
---|
| 2267 | * Do integer arithmetic. |
---|
| 2268 | */ |
---|
| 2269 | switch (opCode) { |
---|
| 2270 | case INST_ADD: |
---|
| 2271 | iResult = i + i2; |
---|
| 2272 | break; |
---|
| 2273 | case INST_SUB: |
---|
| 2274 | iResult = i - i2; |
---|
| 2275 | break; |
---|
| 2276 | case INST_MULT: |
---|
| 2277 | iResult = i * i2; |
---|
| 2278 | break; |
---|
| 2279 | case INST_DIV: |
---|
| 2280 | /* |
---|
| 2281 | * This code is tricky: C doesn't guarantee much |
---|
| 2282 | * about the quotient or remainder, but Tcl does. |
---|
| 2283 | * The remainder always has the same sign as the |
---|
| 2284 | * divisor and a smaller absolute value. |
---|
| 2285 | */ |
---|
| 2286 | if (i2 == 0) { |
---|
| 2287 | TRACE(("div %ld %ld => DIVIDE BY ZERO\n", |
---|
| 2288 | i, i2)); |
---|
| 2289 | Tcl_DecrRefCount(valuePtr); |
---|
| 2290 | Tcl_DecrRefCount(value2Ptr); |
---|
| 2291 | goto divideByZero; |
---|
| 2292 | } |
---|
| 2293 | if (i2 < 0) { |
---|
| 2294 | i2 = -i2; |
---|
| 2295 | i = -i; |
---|
| 2296 | } |
---|
| 2297 | quot = i / i2; |
---|
| 2298 | rem = i % i2; |
---|
| 2299 | if (rem < 0) { |
---|
| 2300 | quot -= 1; |
---|
| 2301 | } |
---|
| 2302 | iResult = quot; |
---|
| 2303 | break; |
---|
| 2304 | } |
---|
| 2305 | } |
---|
| 2306 | |
---|
| 2307 | /* |
---|
| 2308 | * Reuse the valuePtr object already on stack if possible. |
---|
| 2309 | */ |
---|
| 2310 | |
---|
| 2311 | if (Tcl_IsShared(valuePtr)) { |
---|
| 2312 | if (doDouble) { |
---|
| 2313 | PUSH_OBJECT(Tcl_NewDoubleObj(dResult)); |
---|
| 2314 | TRACE(("%s %.6g %.6g => %.6g\n", opName[opCode], |
---|
| 2315 | d1, d2, dResult)); |
---|
| 2316 | } else { |
---|
| 2317 | PUSH_OBJECT(Tcl_NewLongObj(iResult)); |
---|
| 2318 | TRACE(("%s %ld %ld => %ld\n", opName[opCode], |
---|
| 2319 | i, i2, iResult)); |
---|
| 2320 | } |
---|
| 2321 | TclDecrRefCount(valuePtr); |
---|
| 2322 | } else { /* reuse the valuePtr object */ |
---|
| 2323 | if (doDouble) { /* NB: stack top is off by 1 */ |
---|
| 2324 | TRACE(("%s %.6g %.6g => %.6g\n", opName[opCode], |
---|
| 2325 | d1, d2, dResult)); |
---|
| 2326 | Tcl_SetDoubleObj(valuePtr, dResult); |
---|
| 2327 | } else { |
---|
| 2328 | TRACE(("%s %ld %ld => %ld\n", opName[opCode], |
---|
| 2329 | i, i2, iResult)); |
---|
| 2330 | Tcl_SetLongObj(valuePtr, iResult); |
---|
| 2331 | } |
---|
| 2332 | ++stackTop; /* valuePtr now on stk top has right r.c. */ |
---|
| 2333 | } |
---|
| 2334 | TclDecrRefCount(value2Ptr); |
---|
| 2335 | } |
---|
| 2336 | ADJUST_PC(1); |
---|
| 2337 | |
---|
| 2338 | case INST_UPLUS: |
---|
| 2339 | { |
---|
| 2340 | /* |
---|
| 2341 | * Operand must be numeric. |
---|
| 2342 | */ |
---|
| 2343 | |
---|
| 2344 | double d; |
---|
| 2345 | Tcl_ObjType *tPtr; |
---|
| 2346 | |
---|
| 2347 | valuePtr = stackPtr[stackTop].o; |
---|
| 2348 | tPtr = valuePtr->typePtr; |
---|
| 2349 | if ((tPtr != &tclIntType) && (tPtr != &tclDoubleType)) { |
---|
| 2350 | char *s = Tcl_GetStringFromObj(valuePtr, (int *) NULL); |
---|
| 2351 | if (TclLooksLikeInt(s)) { /* FAILS IF NULLS */ |
---|
| 2352 | result = Tcl_GetLongFromObj((Tcl_Interp *) NULL, |
---|
| 2353 | valuePtr, &i); |
---|
| 2354 | } else { |
---|
| 2355 | result = Tcl_GetDoubleFromObj((Tcl_Interp *) NULL, |
---|
| 2356 | valuePtr, &d); |
---|
| 2357 | } |
---|
| 2358 | if (result != TCL_OK) { |
---|
| 2359 | TRACE(("%s \"%.20s\" => ILLEGAL TYPE %s \n", |
---|
| 2360 | opName[opCode], s, |
---|
| 2361 | (tPtr? tPtr->name : "null"))); |
---|
| 2362 | IllegalExprOperandType(interp, opCode, valuePtr); |
---|
| 2363 | goto checkForCatch; |
---|
| 2364 | } |
---|
| 2365 | } |
---|
| 2366 | TRACE_WITH_OBJ(("uplus %s => ", O2S(valuePtr)), valuePtr); |
---|
| 2367 | } |
---|
| 2368 | ADJUST_PC(1); |
---|
| 2369 | |
---|
| 2370 | case INST_UMINUS: |
---|
| 2371 | case INST_LNOT: |
---|
| 2372 | { |
---|
| 2373 | /* |
---|
| 2374 | * The operand must be numeric. If the operand object is |
---|
| 2375 | * unshared modify it directly, otherwise create a copy to |
---|
| 2376 | * modify: this is "copy on write". free any old string |
---|
| 2377 | * representation since it is now invalid. |
---|
| 2378 | */ |
---|
| 2379 | |
---|
| 2380 | double d; |
---|
| 2381 | Tcl_ObjType *tPtr; |
---|
| 2382 | |
---|
| 2383 | valuePtr = POP_OBJECT(); |
---|
| 2384 | tPtr = valuePtr->typePtr; |
---|
| 2385 | if ((tPtr != &tclIntType) && (tPtr != &tclDoubleType)) { |
---|
| 2386 | char *s = Tcl_GetStringFromObj(valuePtr, (int *) NULL); |
---|
| 2387 | if (TclLooksLikeInt(s)) { /* FAILS IF NULLS */ |
---|
| 2388 | result = Tcl_GetLongFromObj((Tcl_Interp *) NULL, |
---|
| 2389 | valuePtr, &i); |
---|
| 2390 | } else { |
---|
| 2391 | result = Tcl_GetDoubleFromObj((Tcl_Interp *) NULL, |
---|
| 2392 | valuePtr, &d); |
---|
| 2393 | } |
---|
| 2394 | if (result != TCL_OK) { |
---|
| 2395 | TRACE(("%s \"%.20s\" => ILLEGAL TYPE %s\n", |
---|
| 2396 | opName[opCode], s, |
---|
| 2397 | (tPtr? tPtr->name : "null"))); |
---|
| 2398 | IllegalExprOperandType(interp, opCode, valuePtr); |
---|
| 2399 | Tcl_DecrRefCount(valuePtr); |
---|
| 2400 | goto checkForCatch; |
---|
| 2401 | } |
---|
| 2402 | tPtr = valuePtr->typePtr; |
---|
| 2403 | } |
---|
| 2404 | |
---|
| 2405 | if (Tcl_IsShared(valuePtr)) { |
---|
| 2406 | /* |
---|
| 2407 | * Create a new object. |
---|
| 2408 | */ |
---|
| 2409 | if (tPtr == &tclIntType) { |
---|
| 2410 | i = valuePtr->internalRep.longValue; |
---|
| 2411 | objPtr = Tcl_NewLongObj( |
---|
| 2412 | (opCode == INST_UMINUS)? -i : !i); |
---|
| 2413 | TRACE_WITH_OBJ(("%s %ld => ", opName[opCode], i), |
---|
| 2414 | objPtr); /* NB: stack top is off by 1 */ |
---|
| 2415 | } else { |
---|
| 2416 | d = valuePtr->internalRep.doubleValue; |
---|
| 2417 | if (opCode == INST_UMINUS) { |
---|
| 2418 | objPtr = Tcl_NewDoubleObj(-d); |
---|
| 2419 | } else { |
---|
| 2420 | /* |
---|
| 2421 | * Should be able to use "!d", but apparently |
---|
| 2422 | * some compilers can't handle it. |
---|
| 2423 | */ |
---|
| 2424 | objPtr = Tcl_NewLongObj((d==0.0)? 1 : 0); |
---|
| 2425 | } |
---|
| 2426 | TRACE_WITH_OBJ(("%s %.6g => ", opName[opCode], d), |
---|
| 2427 | objPtr); /* NB: stack top is off by 1 */ |
---|
| 2428 | } |
---|
| 2429 | PUSH_OBJECT(objPtr); |
---|
| 2430 | TclDecrRefCount(valuePtr); |
---|
| 2431 | } else { |
---|
| 2432 | /* |
---|
| 2433 | * valuePtr is unshared. Modify it directly. |
---|
| 2434 | */ |
---|
| 2435 | if (tPtr == &tclIntType) { |
---|
| 2436 | i = valuePtr->internalRep.longValue; |
---|
| 2437 | Tcl_SetLongObj(valuePtr, |
---|
| 2438 | (opCode == INST_UMINUS)? -i : !i); |
---|
| 2439 | TRACE_WITH_OBJ(("%s %ld => ", opName[opCode], i), |
---|
| 2440 | valuePtr); /* NB: stack top is off by 1 */ |
---|
| 2441 | } else { |
---|
| 2442 | d = valuePtr->internalRep.doubleValue; |
---|
| 2443 | if (opCode == INST_UMINUS) { |
---|
| 2444 | Tcl_SetDoubleObj(valuePtr, -d); |
---|
| 2445 | } else { |
---|
| 2446 | /* |
---|
| 2447 | * Should be able to use "!d", but apparently |
---|
| 2448 | * some compilers can't handle it. |
---|
| 2449 | */ |
---|
| 2450 | Tcl_SetLongObj(valuePtr, (d==0.0)? 1 : 0); |
---|
| 2451 | } |
---|
| 2452 | TRACE_WITH_OBJ(("%s %.6g => ", opName[opCode], d), |
---|
| 2453 | valuePtr); /* NB: stack top is off by 1 */ |
---|
| 2454 | } |
---|
| 2455 | ++stackTop; /* valuePtr now on stk top has right r.c. */ |
---|
| 2456 | } |
---|
| 2457 | } |
---|
| 2458 | ADJUST_PC(1); |
---|
| 2459 | |
---|
| 2460 | case INST_BITNOT: |
---|
| 2461 | { |
---|
| 2462 | /* |
---|
| 2463 | * The operand must be an integer. If the operand object is |
---|
| 2464 | * unshared modify it directly, otherwise modify a copy. |
---|
| 2465 | * Free any old string representation since it is now |
---|
| 2466 | * invalid. |
---|
| 2467 | */ |
---|
| 2468 | |
---|
| 2469 | Tcl_ObjType *tPtr; |
---|
| 2470 | |
---|
| 2471 | valuePtr = POP_OBJECT(); |
---|
| 2472 | tPtr = valuePtr->typePtr; |
---|
| 2473 | if (tPtr != &tclIntType) { |
---|
| 2474 | result = Tcl_GetLongFromObj((Tcl_Interp *) NULL, |
---|
| 2475 | valuePtr, &i); |
---|
| 2476 | if (result != TCL_OK) { /* try to convert to double */ |
---|
| 2477 | TRACE(("bitnot \"%.20s\" => ILLEGAL TYPE %s\n", |
---|
| 2478 | O2S(valuePtr), (tPtr? tPtr->name : "null"))); |
---|
| 2479 | IllegalExprOperandType(interp, opCode, valuePtr); |
---|
| 2480 | Tcl_DecrRefCount(valuePtr); |
---|
| 2481 | goto checkForCatch; |
---|
| 2482 | } |
---|
| 2483 | } |
---|
| 2484 | |
---|
| 2485 | i = valuePtr->internalRep.longValue; |
---|
| 2486 | if (Tcl_IsShared(valuePtr)) { |
---|
| 2487 | PUSH_OBJECT(Tcl_NewLongObj(~i)); |
---|
| 2488 | TRACE(("bitnot 0x%lx => (%lu)\n", i, ~i)); |
---|
| 2489 | TclDecrRefCount(valuePtr); |
---|
| 2490 | } else { |
---|
| 2491 | /* |
---|
| 2492 | * valuePtr is unshared. Modify it directly. |
---|
| 2493 | */ |
---|
| 2494 | Tcl_SetLongObj(valuePtr, ~i); |
---|
| 2495 | ++stackTop; /* valuePtr now on stk top has right r.c. */ |
---|
| 2496 | TRACE(("bitnot 0x%lx => (%lu)\n", i, ~i)); |
---|
| 2497 | } |
---|
| 2498 | } |
---|
| 2499 | ADJUST_PC(1); |
---|
| 2500 | |
---|
| 2501 | case INST_CALL_BUILTIN_FUNC1: |
---|
| 2502 | opnd = TclGetUInt1AtPtr(pc+1); |
---|
| 2503 | { |
---|
| 2504 | /* |
---|
| 2505 | * Call one of the built-in Tcl math functions. |
---|
| 2506 | */ |
---|
| 2507 | |
---|
| 2508 | BuiltinFunc *mathFuncPtr; |
---|
| 2509 | |
---|
| 2510 | if ((opnd < 0) || (opnd > LAST_BUILTIN_FUNC)) { |
---|
| 2511 | TRACE(("UNRECOGNIZED BUILTIN FUNC CODE %d\n", opnd)); |
---|
| 2512 | panic("TclExecuteByteCode: unrecognized builtin function code %d", opnd); |
---|
| 2513 | } |
---|
| 2514 | mathFuncPtr = &(builtinFuncTable[opnd]); |
---|
| 2515 | DECACHE_STACK_INFO(); |
---|
| 2516 | tcl_MathInProgress++; |
---|
| 2517 | result = (*mathFuncPtr->proc)(interp, eePtr, |
---|
| 2518 | mathFuncPtr->clientData); |
---|
| 2519 | tcl_MathInProgress--; |
---|
| 2520 | CACHE_STACK_INFO(); |
---|
| 2521 | if (result != TCL_OK) { |
---|
| 2522 | goto checkForCatch; |
---|
| 2523 | } |
---|
| 2524 | TRACE_WITH_OBJ(("callBuiltinFunc1 %d => ", opnd), |
---|
| 2525 | stackPtr[stackTop].o); |
---|
| 2526 | } |
---|
| 2527 | ADJUST_PC(2); |
---|
| 2528 | |
---|
| 2529 | case INST_CALL_FUNC1: |
---|
| 2530 | opnd = TclGetUInt1AtPtr(pc+1); |
---|
| 2531 | { |
---|
| 2532 | /* |
---|
| 2533 | * Call a non-builtin Tcl math function previously |
---|
| 2534 | * registered by a call to Tcl_CreateMathFunc. |
---|
| 2535 | */ |
---|
| 2536 | |
---|
| 2537 | int objc = opnd; /* Number of arguments. The function name |
---|
| 2538 | * is the 0-th argument. */ |
---|
| 2539 | Tcl_Obj **objv; /* The array of arguments. The function |
---|
| 2540 | * name is objv[0]. */ |
---|
| 2541 | |
---|
| 2542 | objv = &(stackPtr[stackTop - (objc-1)].o); /* "objv[0]" */ |
---|
| 2543 | DECACHE_STACK_INFO(); |
---|
| 2544 | tcl_MathInProgress++; |
---|
| 2545 | result = ExprCallMathFunc(interp, eePtr, objc, objv); |
---|
| 2546 | tcl_MathInProgress--; |
---|
| 2547 | CACHE_STACK_INFO(); |
---|
| 2548 | if (result != TCL_OK) { |
---|
| 2549 | goto checkForCatch; |
---|
| 2550 | } |
---|
| 2551 | TRACE_WITH_OBJ(("callFunc1 %d => ", objc), |
---|
| 2552 | stackPtr[stackTop].o); |
---|
| 2553 | ADJUST_PC(2); |
---|
| 2554 | } |
---|
| 2555 | |
---|
| 2556 | case INST_TRY_CVT_TO_NUMERIC: |
---|
| 2557 | { |
---|
| 2558 | /* |
---|
| 2559 | * Try to convert the topmost stack object to an int or |
---|
| 2560 | * double object. This is done in order to support Tcl's |
---|
| 2561 | * policy of interpreting operands if at all possible as |
---|
| 2562 | * first integers, else floating-point numbers. |
---|
| 2563 | */ |
---|
| 2564 | |
---|
| 2565 | double d; |
---|
| 2566 | char *s; |
---|
| 2567 | Tcl_ObjType *tPtr; |
---|
| 2568 | int converted, shared; |
---|
| 2569 | |
---|
| 2570 | valuePtr = stackPtr[stackTop].o; |
---|
| 2571 | tPtr = valuePtr->typePtr; |
---|
| 2572 | converted = 0; |
---|
| 2573 | if ((tPtr != &tclIntType) && (tPtr != &tclDoubleType)) { |
---|
| 2574 | s = Tcl_GetStringFromObj(valuePtr, (int *) NULL); |
---|
| 2575 | if (TclLooksLikeInt(s)) { /* FAILS IF NULLS */ |
---|
| 2576 | result = Tcl_GetLongFromObj((Tcl_Interp *) NULL, |
---|
| 2577 | valuePtr, &i); |
---|
| 2578 | } else { |
---|
| 2579 | result = Tcl_GetDoubleFromObj((Tcl_Interp *) NULL, |
---|
| 2580 | valuePtr, &d); |
---|
| 2581 | } |
---|
| 2582 | if (result == TCL_OK) { |
---|
| 2583 | converted = 1; |
---|
| 2584 | } |
---|
| 2585 | result = TCL_OK; /* reset the result variable */ |
---|
| 2586 | tPtr = valuePtr->typePtr; |
---|
| 2587 | } |
---|
| 2588 | |
---|
| 2589 | /* |
---|
| 2590 | * Ensure that the topmost stack object, if numeric, has a |
---|
| 2591 | * string rep the same as the formatted version of its |
---|
| 2592 | * internal rep. This is used, e.g., to make sure that "expr |
---|
| 2593 | * {0001}" yields "1", not "0001". We implement this by |
---|
| 2594 | * _discarding_ the string rep since we know it will be |
---|
| 2595 | * regenerated, if needed later, by formatting the internal |
---|
| 2596 | * rep's value. Also check if there has been an IEEE |
---|
| 2597 | * floating point error. |
---|
| 2598 | */ |
---|
| 2599 | |
---|
| 2600 | if ((tPtr == &tclIntType) || (tPtr == &tclDoubleType)) { |
---|
| 2601 | shared = 0; |
---|
| 2602 | if (Tcl_IsShared(valuePtr)) { |
---|
| 2603 | shared = 1; |
---|
| 2604 | if (tPtr == &tclIntType) { |
---|
| 2605 | i = valuePtr->internalRep.longValue; |
---|
| 2606 | objPtr = Tcl_NewLongObj(i); |
---|
| 2607 | } else { |
---|
| 2608 | d = valuePtr->internalRep.doubleValue; |
---|
| 2609 | objPtr = Tcl_NewDoubleObj(d); |
---|
| 2610 | } |
---|
| 2611 | Tcl_IncrRefCount(objPtr); |
---|
| 2612 | TclDecrRefCount(valuePtr); |
---|
| 2613 | valuePtr = objPtr; |
---|
| 2614 | tPtr = valuePtr->typePtr; |
---|
| 2615 | } else { |
---|
| 2616 | Tcl_InvalidateStringRep(valuePtr); |
---|
| 2617 | } |
---|
| 2618 | stackPtr[stackTop].o = valuePtr; |
---|
| 2619 | |
---|
| 2620 | if (tPtr == &tclDoubleType) { |
---|
| 2621 | d = valuePtr->internalRep.doubleValue; |
---|
| 2622 | if (IS_NAN(d) || IS_INF(d)) { |
---|
| 2623 | TRACE(("tryCvtToNumeric \"%.20s\" => IEEE FLOATING PT ERROR\n", |
---|
| 2624 | O2S(valuePtr))); |
---|
| 2625 | TclExprFloatError(interp, d); |
---|
| 2626 | result = TCL_ERROR; |
---|
| 2627 | goto checkForCatch; |
---|
| 2628 | } |
---|
| 2629 | } |
---|
| 2630 | shared = shared; /* lint, shared not used. */ |
---|
| 2631 | converted = converted; /* lint, converted not used. */ |
---|
| 2632 | TRACE(("tryCvtToNumeric \"%.20s\" => numeric, %s, %s\n", |
---|
| 2633 | O2S(valuePtr), |
---|
| 2634 | (converted? "converted" : "not converted"), |
---|
| 2635 | (shared? "shared" : "not shared"))); |
---|
| 2636 | } else { |
---|
| 2637 | TRACE(("tryCvtToNumeric \"%.20s\" => not numeric\n", |
---|
| 2638 | O2S(valuePtr))); |
---|
| 2639 | } |
---|
| 2640 | } |
---|
| 2641 | ADJUST_PC(1); |
---|
| 2642 | |
---|
| 2643 | case INST_BREAK: |
---|
| 2644 | /* |
---|
| 2645 | * First reset the interpreter's result. Then find the closest |
---|
| 2646 | * enclosing loop or catch exception range, if any. If a loop is |
---|
| 2647 | * found, terminate its execution. If the closest is a catch |
---|
| 2648 | * exception range, jump to its catchOffset. If no enclosing |
---|
| 2649 | * range is found, stop execution and return TCL_BREAK. |
---|
| 2650 | */ |
---|
| 2651 | |
---|
| 2652 | Tcl_ResetResult(interp); |
---|
| 2653 | rangePtr = TclGetExceptionRangeForPc(pc, /*catchOnly*/ 0, |
---|
| 2654 | codePtr); |
---|
| 2655 | if (rangePtr == NULL) { |
---|
| 2656 | TRACE(("break => no encl. loop or catch, returning TCL_BREAK\n")); |
---|
| 2657 | result = TCL_BREAK; |
---|
| 2658 | goto abnormalReturn; /* no catch exists to check */ |
---|
| 2659 | } |
---|
| 2660 | switch (rangePtr->type) { |
---|
| 2661 | case LOOP_EXCEPTION_RANGE: |
---|
| 2662 | result = TCL_OK; |
---|
| 2663 | TRACE(("break => range at %d, new pc %d\n", |
---|
| 2664 | rangePtr->codeOffset, rangePtr->breakOffset)); |
---|
| 2665 | break; |
---|
| 2666 | case CATCH_EXCEPTION_RANGE: |
---|
| 2667 | result = TCL_BREAK; |
---|
| 2668 | TRACE(("break => ...\n")); |
---|
| 2669 | goto processCatch; /* it will use rangePtr */ |
---|
| 2670 | default: |
---|
| 2671 | panic("TclExecuteByteCode: unrecognized ExceptionRange type %d\n", rangePtr->type); |
---|
| 2672 | } |
---|
| 2673 | pc = (codePtr->codeStart + rangePtr->breakOffset); |
---|
| 2674 | continue; /* restart outer instruction loop at pc */ |
---|
| 2675 | |
---|
| 2676 | case INST_CONTINUE: |
---|
| 2677 | /* |
---|
| 2678 | * Find the closest enclosing loop or catch exception range, |
---|
| 2679 | * if any. If a loop is found, skip to its next iteration. |
---|
| 2680 | * If the closest is a catch exception range, jump to its |
---|
| 2681 | * catchOffset. If no enclosing range is found, stop |
---|
| 2682 | * execution and return TCL_CONTINUE. |
---|
| 2683 | */ |
---|
| 2684 | |
---|
| 2685 | Tcl_ResetResult(interp); |
---|
| 2686 | rangePtr = TclGetExceptionRangeForPc(pc, /*catchOnly*/ 0, |
---|
| 2687 | codePtr); |
---|
| 2688 | if (rangePtr == NULL) { |
---|
| 2689 | TRACE(("continue => no encl. loop or catch, returning TCL_CONTINUE\n")); |
---|
| 2690 | result = TCL_CONTINUE; |
---|
| 2691 | goto abnormalReturn; |
---|
| 2692 | } |
---|
| 2693 | switch (rangePtr->type) { |
---|
| 2694 | case LOOP_EXCEPTION_RANGE: |
---|
| 2695 | if (rangePtr->continueOffset == -1) { |
---|
| 2696 | TRACE(("continue => loop w/o continue, checking for catch\n")); |
---|
| 2697 | goto checkForCatch; |
---|
| 2698 | } else { |
---|
| 2699 | result = TCL_OK; |
---|
| 2700 | TRACE(("continue => range at %d, new pc %d\n", |
---|
| 2701 | rangePtr->codeOffset, rangePtr->continueOffset)); |
---|
| 2702 | } |
---|
| 2703 | break; |
---|
| 2704 | case CATCH_EXCEPTION_RANGE: |
---|
| 2705 | result = TCL_CONTINUE; |
---|
| 2706 | TRACE(("continue => ...\n")); |
---|
| 2707 | goto processCatch; /* it will use rangePtr */ |
---|
| 2708 | default: |
---|
| 2709 | panic("TclExecuteByteCode: unrecognized ExceptionRange type %d\n", rangePtr->type); |
---|
| 2710 | } |
---|
| 2711 | pc = (codePtr->codeStart + rangePtr->continueOffset); |
---|
| 2712 | continue; /* restart outer instruction loop at pc */ |
---|
| 2713 | |
---|
| 2714 | case INST_FOREACH_START4: |
---|
| 2715 | opnd = TclGetUInt4AtPtr(pc+1); |
---|
| 2716 | { |
---|
| 2717 | /* |
---|
| 2718 | * Initialize the temporary local var that holds the count |
---|
| 2719 | * of the number of iterations of the loop body to -1. |
---|
| 2720 | */ |
---|
| 2721 | |
---|
| 2722 | ForeachInfo *infoPtr = (ForeachInfo *) |
---|
| 2723 | codePtr->auxDataArrayPtr[opnd].clientData; |
---|
| 2724 | int iterTmpIndex = infoPtr->loopIterNumTmp; |
---|
| 2725 | CallFrame *varFramePtr = iPtr->varFramePtr; |
---|
| 2726 | Var *compiledLocals = varFramePtr->compiledLocals; |
---|
| 2727 | Var *iterVarPtr; |
---|
| 2728 | Tcl_Obj *oldValuePtr; |
---|
| 2729 | |
---|
| 2730 | iterVarPtr = &(compiledLocals[iterTmpIndex]); |
---|
| 2731 | oldValuePtr = iterVarPtr->value.objPtr; |
---|
| 2732 | if (oldValuePtr == NULL) { |
---|
| 2733 | iterVarPtr->value.objPtr = Tcl_NewLongObj(-1); |
---|
| 2734 | Tcl_IncrRefCount(iterVarPtr->value.objPtr); |
---|
| 2735 | } else { |
---|
| 2736 | Tcl_SetLongObj(oldValuePtr, -1); |
---|
| 2737 | } |
---|
| 2738 | TclSetVarScalar(iterVarPtr); |
---|
| 2739 | TclClearVarUndefined(iterVarPtr); |
---|
| 2740 | TRACE(("foreach_start4 %u => loop iter count temp %d\n", |
---|
| 2741 | opnd, iterTmpIndex)); |
---|
| 2742 | } |
---|
| 2743 | ADJUST_PC(5); |
---|
| 2744 | |
---|
| 2745 | case INST_FOREACH_STEP4: |
---|
| 2746 | opnd = TclGetUInt4AtPtr(pc+1); |
---|
| 2747 | { |
---|
| 2748 | /* |
---|
| 2749 | * "Step" a foreach loop (i.e., begin its next iteration) by |
---|
| 2750 | * assigning the next value list element to each loop var. |
---|
| 2751 | */ |
---|
| 2752 | |
---|
| 2753 | ForeachInfo *infoPtr = (ForeachInfo *) |
---|
| 2754 | codePtr->auxDataArrayPtr[opnd].clientData; |
---|
| 2755 | ForeachVarList *varListPtr; |
---|
| 2756 | int numLists = infoPtr->numLists; |
---|
| 2757 | int iterTmpIndex = infoPtr->loopIterNumTmp; |
---|
| 2758 | CallFrame *varFramePtr = iPtr->varFramePtr; |
---|
| 2759 | Var *compiledLocals = varFramePtr->compiledLocals; |
---|
| 2760 | int iterNum, listTmpIndex, listLen, numVars; |
---|
| 2761 | int varIndex, valIndex, j; |
---|
| 2762 | Tcl_Obj *listPtr, *elemPtr, *oldValuePtr; |
---|
| 2763 | List *listRepPtr; |
---|
| 2764 | Var *iterVarPtr, *listVarPtr; |
---|
| 2765 | int continueLoop = 0; |
---|
| 2766 | |
---|
| 2767 | /* |
---|
| 2768 | * Increment the temp holding the loop iteration number. |
---|
| 2769 | */ |
---|
| 2770 | |
---|
| 2771 | iterVarPtr = &(compiledLocals[iterTmpIndex]); |
---|
| 2772 | oldValuePtr = iterVarPtr->value.objPtr; |
---|
| 2773 | iterNum = (oldValuePtr->internalRep.longValue + 1); |
---|
| 2774 | Tcl_SetLongObj(oldValuePtr, iterNum); |
---|
| 2775 | |
---|
| 2776 | /* |
---|
| 2777 | * Check whether all value lists are exhausted and we should |
---|
| 2778 | * stop the loop. |
---|
| 2779 | */ |
---|
| 2780 | |
---|
| 2781 | listTmpIndex = infoPtr->firstListTmp; |
---|
| 2782 | for (i = 0; i < numLists; i++) { |
---|
| 2783 | varListPtr = infoPtr->varLists[i]; |
---|
| 2784 | numVars = varListPtr->numVars; |
---|
| 2785 | |
---|
| 2786 | listVarPtr = &(compiledLocals[listTmpIndex]); |
---|
| 2787 | listPtr = listVarPtr->value.objPtr; |
---|
| 2788 | result = Tcl_ListObjLength(interp, listPtr, &listLen); |
---|
| 2789 | if (result != TCL_OK) { |
---|
| 2790 | TRACE_WITH_OBJ(("foreach_step4 %u => ERROR converting list %ld, \"%s\": ", |
---|
| 2791 | opnd, i, O2S(listPtr)), |
---|
| 2792 | Tcl_GetObjResult(interp)); |
---|
| 2793 | goto checkForCatch; |
---|
| 2794 | } |
---|
| 2795 | if (listLen > (iterNum * numVars)) { |
---|
| 2796 | continueLoop = 1; |
---|
| 2797 | } |
---|
| 2798 | listTmpIndex++; |
---|
| 2799 | } |
---|
| 2800 | |
---|
| 2801 | /* |
---|
| 2802 | * If some var in some var list still has a remaining list |
---|
| 2803 | * element iterate one more time. Assign to var the next |
---|
| 2804 | * element from its value list. We already checked above |
---|
| 2805 | * that each list temp holds a valid list object. |
---|
| 2806 | */ |
---|
| 2807 | |
---|
| 2808 | if (continueLoop) { |
---|
| 2809 | listTmpIndex = infoPtr->firstListTmp; |
---|
| 2810 | for (i = 0; i < numLists; i++) { |
---|
| 2811 | varListPtr = infoPtr->varLists[i]; |
---|
| 2812 | numVars = varListPtr->numVars; |
---|
| 2813 | |
---|
| 2814 | listVarPtr = &(compiledLocals[listTmpIndex]); |
---|
| 2815 | listPtr = listVarPtr->value.objPtr; |
---|
| 2816 | listRepPtr = (List *) |
---|
| 2817 | listPtr->internalRep.otherValuePtr; |
---|
| 2818 | listLen = listRepPtr->elemCount; |
---|
| 2819 | |
---|
| 2820 | valIndex = (iterNum * numVars); |
---|
| 2821 | for (j = 0; j < numVars; j++) { |
---|
| 2822 | int setEmptyStr = 0; |
---|
| 2823 | if (valIndex >= listLen) { |
---|
| 2824 | setEmptyStr = 1; |
---|
| 2825 | elemPtr = Tcl_NewObj(); |
---|
| 2826 | } else { |
---|
| 2827 | elemPtr = listRepPtr->elements[valIndex]; |
---|
| 2828 | } |
---|
| 2829 | |
---|
| 2830 | varIndex = varListPtr->varIndexes[j]; |
---|
| 2831 | DECACHE_STACK_INFO(); |
---|
| 2832 | value2Ptr = TclSetIndexedScalar(interp, |
---|
| 2833 | varIndex, elemPtr, /*leaveErrorMsg*/ 1); |
---|
| 2834 | CACHE_STACK_INFO(); |
---|
| 2835 | if (value2Ptr == NULL) { |
---|
| 2836 | TRACE_WITH_OBJ(("foreach_step4 %u => ERROR init. index temp %d: ", |
---|
| 2837 | opnd, varIndex), |
---|
| 2838 | Tcl_GetObjResult(interp)); |
---|
| 2839 | if (setEmptyStr) { |
---|
| 2840 | Tcl_DecrRefCount(elemPtr); /* unneeded */ |
---|
| 2841 | } |
---|
| 2842 | result = TCL_ERROR; |
---|
| 2843 | goto checkForCatch; |
---|
| 2844 | } |
---|
| 2845 | valIndex++; |
---|
| 2846 | } |
---|
| 2847 | listTmpIndex++; |
---|
| 2848 | } |
---|
| 2849 | } |
---|
| 2850 | |
---|
| 2851 | /* |
---|
| 2852 | * Now push a "1" object if at least one value list had a |
---|
| 2853 | * remaining element and the loop should continue. |
---|
| 2854 | * Otherwise push "0". |
---|
| 2855 | */ |
---|
| 2856 | |
---|
| 2857 | PUSH_OBJECT(Tcl_NewLongObj(continueLoop)); |
---|
| 2858 | TRACE(("foreach_step4 %u => %d lists, iter %d, %s loop\n", |
---|
| 2859 | opnd, numLists, iterNum, |
---|
| 2860 | (continueLoop? "continue" : "exit"))); |
---|
| 2861 | } |
---|
| 2862 | ADJUST_PC(5); |
---|
| 2863 | |
---|
| 2864 | case INST_BEGIN_CATCH4: |
---|
| 2865 | /* |
---|
| 2866 | * Record start of the catch command with exception range index |
---|
| 2867 | * equal to the operand. Push the current stack depth onto the |
---|
| 2868 | * special catch stack. |
---|
| 2869 | */ |
---|
| 2870 | catchStackPtr[++catchTop] = stackTop; |
---|
| 2871 | TRACE(("beginCatch4 %u => catchTop=%d, stackTop=%d\n", |
---|
| 2872 | TclGetUInt4AtPtr(pc+1), catchTop, stackTop)); |
---|
| 2873 | ADJUST_PC(5); |
---|
| 2874 | |
---|
| 2875 | case INST_END_CATCH: |
---|
| 2876 | catchTop--; |
---|
| 2877 | result = TCL_OK; |
---|
| 2878 | TRACE(("endCatch => catchTop=%d\n", catchTop)); |
---|
| 2879 | ADJUST_PC(1); |
---|
| 2880 | |
---|
| 2881 | case INST_PUSH_RESULT: |
---|
| 2882 | PUSH_OBJECT(Tcl_GetObjResult(interp)); |
---|
| 2883 | TRACE_WITH_OBJ(("pushResult => "), Tcl_GetObjResult(interp)); |
---|
| 2884 | ADJUST_PC(1); |
---|
| 2885 | |
---|
| 2886 | case INST_PUSH_RETURN_CODE: |
---|
| 2887 | PUSH_OBJECT(Tcl_NewLongObj(result)); |
---|
| 2888 | TRACE(("pushReturnCode => %u\n", result)); |
---|
| 2889 | ADJUST_PC(1); |
---|
| 2890 | |
---|
| 2891 | default: |
---|
| 2892 | TRACE(("UNRECOGNIZED INSTRUCTION %u\n", opCode)); |
---|
| 2893 | panic("TclExecuteByteCode: unrecognized opCode %u", opCode); |
---|
| 2894 | } /* end of switch on opCode */ |
---|
| 2895 | |
---|
| 2896 | /* |
---|
| 2897 | * Division by zero in an expression. Control only reaches this |
---|
| 2898 | * point by "goto divideByZero". |
---|
| 2899 | */ |
---|
| 2900 | |
---|
| 2901 | divideByZero: |
---|
| 2902 | Tcl_ResetResult(interp); |
---|
| 2903 | Tcl_AppendToObj(Tcl_GetObjResult(interp), "divide by zero", -1); |
---|
| 2904 | Tcl_SetErrorCode(interp, "ARITH", "DIVZERO", "divide by zero", |
---|
| 2905 | (char *) NULL); |
---|
| 2906 | result = TCL_ERROR; |
---|
| 2907 | |
---|
| 2908 | /* |
---|
| 2909 | * Execution has generated an "exception" such as TCL_ERROR. If the |
---|
| 2910 | * exception is an error, record information about what was being |
---|
| 2911 | * executed when the error occurred. Find the closest enclosing |
---|
| 2912 | * catch range, if any. If no enclosing catch range is found, stop |
---|
| 2913 | * execution and return the "exception" code. |
---|
| 2914 | */ |
---|
| 2915 | |
---|
| 2916 | checkForCatch: |
---|
| 2917 | if ((result == TCL_ERROR) && !(iPtr->flags & ERR_ALREADY_LOGGED)) { |
---|
| 2918 | RecordTracebackInfo(interp, pc, codePtr); |
---|
| 2919 | } |
---|
| 2920 | rangePtr = TclGetExceptionRangeForPc(pc, /*catchOnly*/ 1, codePtr); |
---|
| 2921 | if (rangePtr == NULL) { |
---|
| 2922 | TRACE((" ... no enclosing catch, returning %s\n", |
---|
| 2923 | StringForResultCode(result))); |
---|
| 2924 | goto abnormalReturn; |
---|
| 2925 | } |
---|
| 2926 | |
---|
| 2927 | /* |
---|
| 2928 | * A catch exception range (rangePtr) was found to handle an |
---|
| 2929 | * "exception". It was found either by checkForCatch just above or |
---|
| 2930 | * by an instruction during break, continue, or error processing. |
---|
| 2931 | * Jump to its catchOffset after unwinding the operand stack to |
---|
| 2932 | * the depth it had when starting to execute the range's catch |
---|
| 2933 | * command. |
---|
| 2934 | */ |
---|
| 2935 | |
---|
| 2936 | processCatch: |
---|
| 2937 | while (stackTop > catchStackPtr[catchTop]) { |
---|
| 2938 | valuePtr = POP_OBJECT(); |
---|
| 2939 | TclDecrRefCount(valuePtr); |
---|
| 2940 | } |
---|
| 2941 | TRACE((" ... found catch at %d, catchTop=%d, unwound to %d, new pc %u\n", |
---|
| 2942 | rangePtr->codeOffset, catchTop, catchStackPtr[catchTop], |
---|
| 2943 | (unsigned int)(rangePtr->catchOffset))); |
---|
| 2944 | pc = (codePtr->codeStart + rangePtr->catchOffset); |
---|
| 2945 | continue; /* restart the execution loop at pc */ |
---|
| 2946 | } /* end of infinite loop dispatching on instructions */ |
---|
| 2947 | |
---|
| 2948 | /* |
---|
| 2949 | * Abnormal return code. Restore the stack to state it had when starting |
---|
| 2950 | * to execute the ByteCode. |
---|
| 2951 | */ |
---|
| 2952 | |
---|
| 2953 | abnormalReturn: |
---|
| 2954 | while (stackTop > initStackTop) { |
---|
| 2955 | valuePtr = POP_OBJECT(); |
---|
| 2956 | Tcl_DecrRefCount(valuePtr); |
---|
| 2957 | } |
---|
| 2958 | |
---|
| 2959 | /* |
---|
| 2960 | * Free the catch stack array if malloc'ed storage was used. |
---|
| 2961 | */ |
---|
| 2962 | |
---|
| 2963 | done: |
---|
| 2964 | if (catchStackPtr != catchStackStorage) { |
---|
| 2965 | ckfree((char *) catchStackPtr); |
---|
| 2966 | } |
---|
| 2967 | eePtr->stackTop = initStackTop; |
---|
| 2968 | return result; |
---|
| 2969 | #undef STATIC_CATCH_STACK_SIZE |
---|
| 2970 | } |
---|
| 2971 | |
---|
| 2972 | /* |
---|
| 2973 | *---------------------------------------------------------------------- |
---|
| 2974 | * |
---|
| 2975 | * PrintByteCodeInfo -- |
---|
| 2976 | * |
---|
| 2977 | * This procedure prints a summary about a bytecode object to stdout. |
---|
| 2978 | * It is called by TclExecuteByteCode when starting to execute the |
---|
| 2979 | * bytecode object if tclTraceExec has the value 2 or more. |
---|
| 2980 | * |
---|
| 2981 | * Results: |
---|
| 2982 | * None. |
---|
| 2983 | * |
---|
| 2984 | * Side effects: |
---|
| 2985 | * None. |
---|
| 2986 | * |
---|
| 2987 | *---------------------------------------------------------------------- |
---|
| 2988 | */ |
---|
| 2989 | |
---|
| 2990 | static void |
---|
| 2991 | PrintByteCodeInfo(codePtr) |
---|
| 2992 | register ByteCode *codePtr; /* The bytecode whose summary is printed |
---|
| 2993 | * to stdout. */ |
---|
| 2994 | { |
---|
| 2995 | Proc *procPtr = codePtr->procPtr; |
---|
| 2996 | int numCmds = codePtr->numCommands; |
---|
| 2997 | int numObjs = codePtr->numObjects; |
---|
| 2998 | int objBytes, i; |
---|
| 2999 | |
---|
| 3000 | objBytes = (numObjs * sizeof(Tcl_Obj)); |
---|
| 3001 | for (i = 0; i < numObjs; i++) { |
---|
| 3002 | Tcl_Obj *litObjPtr = codePtr->objArrayPtr[i]; |
---|
| 3003 | if (litObjPtr->bytes != NULL) { |
---|
| 3004 | objBytes += litObjPtr->length; |
---|
| 3005 | } |
---|
| 3006 | } |
---|
| 3007 | |
---|
| 3008 | fprintf(stdout, "\nExecuting ByteCode 0x%x, ref ct %u, epoch %u, interp 0x%x(epoch %u)\n", |
---|
| 3009 | (unsigned int) codePtr, codePtr->refCount, |
---|
| 3010 | codePtr->compileEpoch, (unsigned int) codePtr->iPtr, |
---|
| 3011 | codePtr->iPtr->compileEpoch); |
---|
| 3012 | |
---|
| 3013 | fprintf(stdout, " Source: "); |
---|
| 3014 | TclPrintSource(stdout, codePtr->source, 70); |
---|
| 3015 | |
---|
| 3016 | fprintf(stdout, "\n Cmds %d, chars %d, inst %u, objs %u, aux %d, stk depth %u, code/src %.2fn", |
---|
| 3017 | numCmds, codePtr->numSrcChars, codePtr->numCodeBytes, numObjs, |
---|
| 3018 | codePtr->numAuxDataItems, codePtr->maxStackDepth, |
---|
| 3019 | (codePtr->numSrcChars? |
---|
| 3020 | ((float)codePtr->totalSize)/((float)codePtr->numSrcChars) : 0.0)); |
---|
| 3021 | |
---|
| 3022 | fprintf(stdout, " Code %zu = %u(header)+%d(inst)+%d(objs)+%u(exc)+%u(aux)+%d(cmd map)\n", |
---|
| 3023 | codePtr->totalSize, sizeof(ByteCode), codePtr->numCodeBytes, |
---|
| 3024 | objBytes, (codePtr->numExcRanges * sizeof(ExceptionRange)), |
---|
| 3025 | (codePtr->numAuxDataItems * sizeof(AuxData)), |
---|
| 3026 | codePtr->numCmdLocBytes); |
---|
| 3027 | |
---|
| 3028 | if (procPtr != NULL) { |
---|
| 3029 | fprintf(stdout, |
---|
| 3030 | " Proc 0x%x, ref ct %d, args %d, compiled locals %d\n", |
---|
| 3031 | (unsigned int) procPtr, procPtr->refCount, |
---|
| 3032 | procPtr->numArgs, procPtr->numCompiledLocals); |
---|
| 3033 | } |
---|
| 3034 | } |
---|
| 3035 | |
---|
| 3036 | /* |
---|
| 3037 | *---------------------------------------------------------------------- |
---|
| 3038 | * |
---|
| 3039 | * ValidatePcAndStackTop -- |
---|
| 3040 | * |
---|
| 3041 | * This procedure is called by TclExecuteByteCode when debugging to |
---|
| 3042 | * verify that the program counter and stack top are valid during |
---|
| 3043 | * execution. |
---|
| 3044 | * |
---|
| 3045 | * Results: |
---|
| 3046 | * None. |
---|
| 3047 | * |
---|
| 3048 | * Side effects: |
---|
| 3049 | * Prints a message to stderr and panics if either the pc or stack |
---|
| 3050 | * top are invalid. |
---|
| 3051 | * |
---|
| 3052 | *---------------------------------------------------------------------- |
---|
| 3053 | */ |
---|
| 3054 | |
---|
| 3055 | #ifdef TCL_COMPILE_DEBUG |
---|
| 3056 | static void |
---|
| 3057 | ValidatePcAndStackTop(codePtr, pc, stackTop, stackLowerBound, stackUpperBound) |
---|
| 3058 | register ByteCode *codePtr; /* The bytecode whose summary is printed |
---|
| 3059 | * to stdout. */ |
---|
| 3060 | unsigned char *pc; /* Points to first byte of a bytecode |
---|
| 3061 | * instruction. The program counter. */ |
---|
| 3062 | int stackTop; /* Current stack top. Must be between |
---|
| 3063 | * stackLowerBound and stackUpperBound |
---|
| 3064 | * (inclusive). */ |
---|
| 3065 | int stackLowerBound; /* Smallest legal value for stackTop. */ |
---|
| 3066 | int stackUpperBound; /* Greatest legal value for stackTop. */ |
---|
| 3067 | { |
---|
| 3068 | unsigned int relativePc = (unsigned int) (pc - codePtr->codeStart); |
---|
| 3069 | unsigned int codeStart = (unsigned int) codePtr->codeStart; |
---|
| 3070 | unsigned int codeEnd = (unsigned int) |
---|
| 3071 | (codePtr->codeStart + codePtr->numCodeBytes); |
---|
| 3072 | unsigned char opCode = *pc; |
---|
| 3073 | |
---|
| 3074 | if (((unsigned int) pc < codeStart) || ((unsigned int) pc > codeEnd)) { |
---|
| 3075 | fprintf(stderr, "\nBad instruction pc 0x%x in TclExecuteByteCode\n", |
---|
| 3076 | (unsigned int) pc); |
---|
| 3077 | panic("TclExecuteByteCode execution failure: bad pc"); |
---|
| 3078 | } |
---|
| 3079 | if ((unsigned int) opCode > LAST_INST_OPCODE) { |
---|
| 3080 | fprintf(stderr, "\nBad opcode %d at pc %u in TclExecuteByteCode\n", |
---|
| 3081 | (unsigned int) opCode, relativePc); |
---|
| 3082 | panic("TclExecuteByteCode execution failure: bad opcode"); |
---|
| 3083 | } |
---|
| 3084 | if ((stackTop < stackLowerBound) || (stackTop > stackUpperBound)) { |
---|
| 3085 | int numChars; |
---|
| 3086 | char *cmd = GetSrcInfoForPc(pc, codePtr, &numChars); |
---|
| 3087 | char *ellipsis = ""; |
---|
| 3088 | |
---|
| 3089 | fprintf(stderr, "\nBad stack top %d at pc %u in TclExecuteByteCode", |
---|
| 3090 | stackTop, relativePc); |
---|
| 3091 | if (cmd != NULL) { |
---|
| 3092 | if (numChars > 100) { |
---|
| 3093 | numChars = 100; |
---|
| 3094 | ellipsis = "..."; |
---|
| 3095 | } |
---|
| 3096 | fprintf(stderr, "\n executing %.*s%s\n", numChars, cmd, |
---|
| 3097 | ellipsis); |
---|
| 3098 | } else { |
---|
| 3099 | fprintf(stderr, "\n"); |
---|
| 3100 | } |
---|
| 3101 | panic("TclExecuteByteCode execution failure: bad stack top"); |
---|
| 3102 | } |
---|
| 3103 | } |
---|
| 3104 | #endif /* TCL_COMPILE_DEBUG */ |
---|
| 3105 | |
---|
| 3106 | /* |
---|
| 3107 | *---------------------------------------------------------------------- |
---|
| 3108 | * |
---|
| 3109 | * IllegalExprOperandType -- |
---|
| 3110 | * |
---|
| 3111 | * Used by TclExecuteByteCode to add an error message to errorInfo |
---|
| 3112 | * when an illegal operand type is detected by an expression |
---|
| 3113 | * instruction. The argument opCode holds the failing instruction's |
---|
| 3114 | * opcode and opndPtr holds the operand object in error. |
---|
| 3115 | * |
---|
| 3116 | * Results: |
---|
| 3117 | * None. |
---|
| 3118 | * |
---|
| 3119 | * Side effects: |
---|
| 3120 | * An error message is appended to errorInfo. |
---|
| 3121 | * |
---|
| 3122 | *---------------------------------------------------------------------- |
---|
| 3123 | */ |
---|
| 3124 | |
---|
| 3125 | static void |
---|
| 3126 | IllegalExprOperandType(interp, opCode, opndPtr) |
---|
| 3127 | Tcl_Interp *interp; /* Interpreter to which error information |
---|
| 3128 | * pertains. */ |
---|
| 3129 | unsigned int opCode; /* The instruction opcode being executed |
---|
| 3130 | * when the illegal type was found. */ |
---|
| 3131 | Tcl_Obj *opndPtr; /* Points to the operand holding the value |
---|
| 3132 | * with the illegal type. */ |
---|
| 3133 | { |
---|
| 3134 | Tcl_ResetResult(interp); |
---|
| 3135 | if ((opndPtr->bytes == NULL) || (opndPtr->length == 0)) { |
---|
| 3136 | Tcl_AppendStringsToObj(Tcl_GetObjResult(interp), |
---|
| 3137 | "can't use empty string as operand of \"", |
---|
| 3138 | operatorStrings[opCode - INST_LOR], "\"", (char *) NULL); |
---|
| 3139 | } else { |
---|
| 3140 | Tcl_AppendStringsToObj(Tcl_GetObjResult(interp), "can't use ", |
---|
| 3141 | ((opndPtr->typePtr == &tclDoubleType) ? |
---|
| 3142 | "floating-point value" : "non-numeric string"), |
---|
| 3143 | " as operand of \"", operatorStrings[opCode - INST_LOR], |
---|
| 3144 | "\"", (char *) NULL); |
---|
| 3145 | } |
---|
| 3146 | } |
---|
| 3147 | |
---|
| 3148 | /* |
---|
| 3149 | *---------------------------------------------------------------------- |
---|
| 3150 | * |
---|
| 3151 | * CallTraceProcedure -- |
---|
| 3152 | * |
---|
| 3153 | * Invokes a trace procedure registered with an interpreter. These |
---|
| 3154 | * procedures trace command execution. Currently this trace procedure |
---|
| 3155 | * is called with the address of the string-based Tcl_CmdProc for the |
---|
| 3156 | * command, not the Tcl_ObjCmdProc. |
---|
| 3157 | * |
---|
| 3158 | * Results: |
---|
| 3159 | * None. |
---|
| 3160 | * |
---|
| 3161 | * Side effects: |
---|
| 3162 | * Those side effects made by the trace procedure. |
---|
| 3163 | * |
---|
| 3164 | *---------------------------------------------------------------------- |
---|
| 3165 | */ |
---|
| 3166 | |
---|
| 3167 | static void |
---|
| 3168 | CallTraceProcedure(interp, tracePtr, cmdPtr, command, numChars, objc, objv) |
---|
| 3169 | Tcl_Interp *interp; /* The current interpreter. */ |
---|
| 3170 | register Trace *tracePtr; /* Describes the trace procedure to call. */ |
---|
| 3171 | Command *cmdPtr; /* Points to command's Command struct. */ |
---|
| 3172 | char *command; /* Points to the first character of the |
---|
| 3173 | * command's source before substitutions. */ |
---|
| 3174 | int numChars; /* The number of characters in the |
---|
| 3175 | * command's source. */ |
---|
| 3176 | register int objc; /* Number of arguments for the command. */ |
---|
| 3177 | Tcl_Obj *objv[]; /* Pointers to Tcl_Obj of each argument. */ |
---|
| 3178 | { |
---|
| 3179 | Interp *iPtr = (Interp *) interp; |
---|
| 3180 | register char **argv; |
---|
| 3181 | register int i; |
---|
| 3182 | int length; |
---|
| 3183 | char *p; |
---|
| 3184 | |
---|
| 3185 | /* |
---|
| 3186 | * Get the string rep from the objv argument objects and place their |
---|
| 3187 | * pointers in argv. First make sure argv is large enough to hold the |
---|
| 3188 | * objc args plus 1 extra word for the zero end-of-argv word. |
---|
| 3189 | * THIS FAILS IF AN OBJECT'S STRING REP CONTAINS NULLS. |
---|
| 3190 | */ |
---|
| 3191 | |
---|
| 3192 | argv = (char **) ckalloc((unsigned)(objc + 1) * sizeof(char *)); |
---|
| 3193 | for (i = 0; i < objc; i++) { |
---|
| 3194 | argv[i] = Tcl_GetStringFromObj(objv[i], &length); |
---|
| 3195 | } |
---|
| 3196 | argv[objc] = 0; |
---|
| 3197 | |
---|
| 3198 | /* |
---|
| 3199 | * Copy the command characters into a new string. |
---|
| 3200 | */ |
---|
| 3201 | |
---|
| 3202 | p = (char *) ckalloc((unsigned) (numChars + 1)); |
---|
| 3203 | memcpy((VOID *) p, (VOID *) command, (size_t) numChars); |
---|
| 3204 | p[numChars] = '\0'; |
---|
| 3205 | |
---|
| 3206 | /* |
---|
| 3207 | * Call the trace procedure then free allocated storage. |
---|
| 3208 | */ |
---|
| 3209 | |
---|
| 3210 | (*tracePtr->proc)(tracePtr->clientData, interp, iPtr->numLevels, |
---|
| 3211 | p, cmdPtr->proc, cmdPtr->clientData, objc, argv); |
---|
| 3212 | |
---|
| 3213 | ckfree((char *) argv); |
---|
| 3214 | ckfree((char *) p); |
---|
| 3215 | } |
---|
| 3216 | |
---|
| 3217 | /* |
---|
| 3218 | *---------------------------------------------------------------------- |
---|
| 3219 | * |
---|
| 3220 | * RecordTracebackInfo -- |
---|
| 3221 | * |
---|
| 3222 | * Procedure called by TclExecuteByteCode to record information |
---|
| 3223 | * about what was being executed when the error occurred. |
---|
| 3224 | * |
---|
| 3225 | * Results: |
---|
| 3226 | * None. |
---|
| 3227 | * |
---|
| 3228 | * Side effects: |
---|
| 3229 | * Appends information about the command being executed to the |
---|
| 3230 | * "errorInfo" variable. Sets the errorLine field in the interpreter |
---|
| 3231 | * to the line number of that command. Sets the ERR_ALREADY_LOGGED |
---|
| 3232 | * bit in the interpreter's execution flags. |
---|
| 3233 | * |
---|
| 3234 | *---------------------------------------------------------------------- |
---|
| 3235 | */ |
---|
| 3236 | |
---|
| 3237 | static void |
---|
| 3238 | RecordTracebackInfo(interp, pc, codePtr) |
---|
| 3239 | Tcl_Interp *interp; /* The interpreter in which the error |
---|
| 3240 | * occurred. */ |
---|
| 3241 | unsigned char *pc; /* The program counter value where the error * occurred. This points to a bytecode |
---|
| 3242 | * instruction in codePtr's code. */ |
---|
| 3243 | ByteCode *codePtr; /* The bytecode sequence being executed. */ |
---|
| 3244 | { |
---|
| 3245 | register Interp *iPtr = (Interp *) interp; |
---|
| 3246 | char *cmd, *ellipsis; |
---|
| 3247 | char buf[200]; |
---|
| 3248 | register char *p; |
---|
| 3249 | int numChars; |
---|
| 3250 | |
---|
| 3251 | /* |
---|
| 3252 | * Record the command in errorInfo (up to a certain number of |
---|
| 3253 | * characters, or up to the first newline). |
---|
| 3254 | */ |
---|
| 3255 | |
---|
| 3256 | iPtr->errorLine = 1; |
---|
| 3257 | cmd = GetSrcInfoForPc(pc, codePtr, &numChars); |
---|
| 3258 | if (cmd != NULL) { |
---|
| 3259 | for (p = codePtr->source; p != cmd; p++) { |
---|
| 3260 | if (*p == '\n') { |
---|
| 3261 | iPtr->errorLine++; |
---|
| 3262 | } |
---|
| 3263 | } |
---|
| 3264 | for ( ; (isspace(UCHAR(*p)) || (*p == ';')); p++) { |
---|
| 3265 | if (*p == '\n') { |
---|
| 3266 | iPtr->errorLine++; |
---|
| 3267 | } |
---|
| 3268 | } |
---|
| 3269 | |
---|
| 3270 | ellipsis = ""; |
---|
| 3271 | if (numChars > 150) { |
---|
| 3272 | numChars = 150; |
---|
| 3273 | ellipsis = "..."; |
---|
| 3274 | } |
---|
| 3275 | if (!(iPtr->flags & ERR_IN_PROGRESS)) { |
---|
| 3276 | sprintf(buf, "\n while executing\n\"%.*s%s\"", |
---|
| 3277 | numChars, cmd, ellipsis); |
---|
| 3278 | } else { |
---|
| 3279 | sprintf(buf, "\n invoked from within\n\"%.*s%s\"", |
---|
| 3280 | numChars, cmd, ellipsis); |
---|
| 3281 | } |
---|
| 3282 | Tcl_AddObjErrorInfo(interp, buf, -1); |
---|
| 3283 | iPtr->flags |= ERR_ALREADY_LOGGED; |
---|
| 3284 | } |
---|
| 3285 | } |
---|
| 3286 | |
---|
| 3287 | /* |
---|
| 3288 | *---------------------------------------------------------------------- |
---|
| 3289 | * |
---|
| 3290 | * GetSrcInfoForPc -- |
---|
| 3291 | * |
---|
| 3292 | * Given a program counter value, finds the closest command in the |
---|
| 3293 | * bytecode code unit's CmdLocation array and returns information about |
---|
| 3294 | * that command's source: a pointer to its first byte and the number of |
---|
| 3295 | * characters. |
---|
| 3296 | * |
---|
| 3297 | * Results: |
---|
| 3298 | * If a command is found that encloses the program counter value, a |
---|
| 3299 | * pointer to the command's source is returned and the length of the |
---|
| 3300 | * source is stored at *lengthPtr. If multiple commands resulted in |
---|
| 3301 | * code at pc, information about the closest enclosing command is |
---|
| 3302 | * returned. If no matching command is found, NULL is returned and |
---|
| 3303 | * *lengthPtr is unchanged. |
---|
| 3304 | * |
---|
| 3305 | * Side effects: |
---|
| 3306 | * None. |
---|
| 3307 | * |
---|
| 3308 | *---------------------------------------------------------------------- |
---|
| 3309 | */ |
---|
| 3310 | |
---|
| 3311 | static char * |
---|
| 3312 | GetSrcInfoForPc(pc, codePtr, lengthPtr) |
---|
| 3313 | unsigned char *pc; /* The program counter value for which to |
---|
| 3314 | * return the closest command's source info. |
---|
| 3315 | * This points to a bytecode instruction |
---|
| 3316 | * in codePtr's code. */ |
---|
| 3317 | ByteCode *codePtr; /* The bytecode sequence in which to look |
---|
| 3318 | * up the command source for the pc. */ |
---|
| 3319 | int *lengthPtr; /* If non-NULL, the location where the |
---|
| 3320 | * length of the command's source should be |
---|
| 3321 | * stored. If NULL, no length is stored. */ |
---|
| 3322 | { |
---|
| 3323 | register int pcOffset = (pc - codePtr->codeStart); |
---|
| 3324 | int numCmds = codePtr->numCommands; |
---|
| 3325 | unsigned char *codeDeltaNext, *codeLengthNext; |
---|
| 3326 | unsigned char *srcDeltaNext, *srcLengthNext; |
---|
| 3327 | int codeOffset, codeLen, codeEnd, srcOffset, srcLen, delta, i; |
---|
| 3328 | int bestDist = INT_MAX; /* Distance of pc to best cmd's start pc. */ |
---|
| 3329 | int bestSrcOffset = -1; /* Initialized to avoid compiler warning. */ |
---|
| 3330 | int bestSrcLength = -1; /* Initialized to avoid compiler warning. */ |
---|
| 3331 | |
---|
| 3332 | if ((pcOffset < 0) || (pcOffset >= codePtr->numCodeBytes)) { |
---|
| 3333 | return NULL; |
---|
| 3334 | } |
---|
| 3335 | |
---|
| 3336 | /* |
---|
| 3337 | * Decode the code and source offset and length for each command. The |
---|
| 3338 | * closest enclosing command is the last one whose code started before |
---|
| 3339 | * pcOffset. |
---|
| 3340 | */ |
---|
| 3341 | |
---|
| 3342 | codeDeltaNext = codePtr->codeDeltaStart; |
---|
| 3343 | codeLengthNext = codePtr->codeLengthStart; |
---|
| 3344 | srcDeltaNext = codePtr->srcDeltaStart; |
---|
| 3345 | srcLengthNext = codePtr->srcLengthStart; |
---|
| 3346 | codeOffset = srcOffset = 0; |
---|
| 3347 | for (i = 0; i < numCmds; i++) { |
---|
| 3348 | if ((unsigned int) (*codeDeltaNext) == (unsigned int) 0xFF) { |
---|
| 3349 | codeDeltaNext++; |
---|
| 3350 | delta = TclGetInt4AtPtr(codeDeltaNext); |
---|
| 3351 | codeDeltaNext += 4; |
---|
| 3352 | } else { |
---|
| 3353 | delta = TclGetInt1AtPtr(codeDeltaNext); |
---|
| 3354 | codeDeltaNext++; |
---|
| 3355 | } |
---|
| 3356 | codeOffset += delta; |
---|
| 3357 | |
---|
| 3358 | if ((unsigned int) (*codeLengthNext) == (unsigned int) 0xFF) { |
---|
| 3359 | codeLengthNext++; |
---|
| 3360 | codeLen = TclGetInt4AtPtr(codeLengthNext); |
---|
| 3361 | codeLengthNext += 4; |
---|
| 3362 | } else { |
---|
| 3363 | codeLen = TclGetInt1AtPtr(codeLengthNext); |
---|
| 3364 | codeLengthNext++; |
---|
| 3365 | } |
---|
| 3366 | codeEnd = (codeOffset + codeLen - 1); |
---|
| 3367 | |
---|
| 3368 | if ((unsigned int) (*srcDeltaNext) == (unsigned int) 0xFF) { |
---|
| 3369 | srcDeltaNext++; |
---|
| 3370 | delta = TclGetInt4AtPtr(srcDeltaNext); |
---|
| 3371 | srcDeltaNext += 4; |
---|
| 3372 | } else { |
---|
| 3373 | delta = TclGetInt1AtPtr(srcDeltaNext); |
---|
| 3374 | srcDeltaNext++; |
---|
| 3375 | } |
---|
| 3376 | srcOffset += delta; |
---|
| 3377 | |
---|
| 3378 | if ((unsigned int) (*srcLengthNext) == (unsigned int) 0xFF) { |
---|
| 3379 | srcLengthNext++; |
---|
| 3380 | srcLen = TclGetInt4AtPtr(srcLengthNext); |
---|
| 3381 | srcLengthNext += 4; |
---|
| 3382 | } else { |
---|
| 3383 | srcLen = TclGetInt1AtPtr(srcLengthNext); |
---|
| 3384 | srcLengthNext++; |
---|
| 3385 | } |
---|
| 3386 | |
---|
| 3387 | if (codeOffset > pcOffset) { /* best cmd already found */ |
---|
| 3388 | break; |
---|
| 3389 | } else if (pcOffset <= codeEnd) { /* this cmd's code encloses pc */ |
---|
| 3390 | int dist = (pcOffset - codeOffset); |
---|
| 3391 | if (dist <= bestDist) { |
---|
| 3392 | bestDist = dist; |
---|
| 3393 | bestSrcOffset = srcOffset; |
---|
| 3394 | bestSrcLength = srcLen; |
---|
| 3395 | } |
---|
| 3396 | } |
---|
| 3397 | } |
---|
| 3398 | |
---|
| 3399 | if (bestDist == INT_MAX) { |
---|
| 3400 | return NULL; |
---|
| 3401 | } |
---|
| 3402 | |
---|
| 3403 | if (lengthPtr != NULL) { |
---|
| 3404 | *lengthPtr = bestSrcLength; |
---|
| 3405 | } |
---|
| 3406 | return (codePtr->source + bestSrcOffset); |
---|
| 3407 | } |
---|
| 3408 | |
---|
| 3409 | /* |
---|
| 3410 | *---------------------------------------------------------------------- |
---|
| 3411 | * |
---|
| 3412 | * TclGetExceptionRangeForPc -- |
---|
| 3413 | * |
---|
| 3414 | * Procedure that given a program counter value, returns the closest |
---|
| 3415 | * enclosing ExceptionRange that matches the kind requested. |
---|
| 3416 | * |
---|
| 3417 | * Results: |
---|
| 3418 | * In the normal case, catchOnly is 0 (false) and this procedure |
---|
| 3419 | * returns a pointer to the most closely enclosing ExceptionRange |
---|
| 3420 | * structure regardless of whether it is a loop or catch exception |
---|
| 3421 | * range. This is appropriate when processing a TCL_BREAK or |
---|
| 3422 | * TCL_CONTINUE, which will be "handled" either by a loop exception |
---|
| 3423 | * range or a closer catch range. If catchOnly is nonzero (true), this |
---|
| 3424 | * procedure ignores loop exception ranges and returns a pointer to the |
---|
| 3425 | * closest catch range. If no matching ExceptionRange is found that |
---|
| 3426 | * encloses pc, a NULL is returned. |
---|
| 3427 | * |
---|
| 3428 | * Side effects: |
---|
| 3429 | * None. |
---|
| 3430 | * |
---|
| 3431 | *---------------------------------------------------------------------- |
---|
| 3432 | */ |
---|
| 3433 | |
---|
| 3434 | ExceptionRange * |
---|
| 3435 | TclGetExceptionRangeForPc(pc, catchOnly, codePtr) |
---|
| 3436 | unsigned char *pc; /* The program counter value for which to |
---|
| 3437 | * search for a closest enclosing exception |
---|
| 3438 | * range. This points to a bytecode |
---|
| 3439 | * instruction in codePtr's code. */ |
---|
| 3440 | int catchOnly; /* If 0, consider either loop or catch |
---|
| 3441 | * ExceptionRanges in search. Otherwise |
---|
| 3442 | * consider only catch ranges (and ignore |
---|
| 3443 | * any closer loop ranges). */ |
---|
| 3444 | ByteCode* codePtr; /* Points to the ByteCode in which to search |
---|
| 3445 | * for the enclosing ExceptionRange. */ |
---|
| 3446 | { |
---|
| 3447 | ExceptionRange *rangeArrayPtr; |
---|
| 3448 | int numRanges = codePtr->numExcRanges; |
---|
| 3449 | register ExceptionRange *rangePtr; |
---|
| 3450 | int codeOffset = (pc - codePtr->codeStart); |
---|
| 3451 | register int i, level; |
---|
| 3452 | |
---|
| 3453 | if (numRanges == 0) { |
---|
| 3454 | return NULL; |
---|
| 3455 | } |
---|
| 3456 | rangeArrayPtr = codePtr->excRangeArrayPtr; |
---|
| 3457 | |
---|
| 3458 | for (level = codePtr->maxExcRangeDepth; level >= 0; level--) { |
---|
| 3459 | for (i = 0; i < numRanges; i++) { |
---|
| 3460 | rangePtr = &(rangeArrayPtr[i]); |
---|
| 3461 | if (rangePtr->nestingLevel == level) { |
---|
| 3462 | int start = rangePtr->codeOffset; |
---|
| 3463 | int end = (start + rangePtr->numCodeBytes); |
---|
| 3464 | if ((start <= codeOffset) && (codeOffset < end)) { |
---|
| 3465 | if ((!catchOnly) |
---|
| 3466 | || (rangePtr->type == CATCH_EXCEPTION_RANGE)) { |
---|
| 3467 | return rangePtr; |
---|
| 3468 | } |
---|
| 3469 | } |
---|
| 3470 | } |
---|
| 3471 | } |
---|
| 3472 | } |
---|
| 3473 | return NULL; |
---|
| 3474 | } |
---|
| 3475 | |
---|
| 3476 | /* |
---|
| 3477 | *---------------------------------------------------------------------- |
---|
| 3478 | * |
---|
| 3479 | * Math Functions -- |
---|
| 3480 | * |
---|
| 3481 | * This page contains the procedures that implement all of the |
---|
| 3482 | * built-in math functions for expressions. |
---|
| 3483 | * |
---|
| 3484 | * Results: |
---|
| 3485 | * Each procedure returns TCL_OK if it succeeds and pushes an |
---|
| 3486 | * Tcl object holding the result. If it fails it returns TCL_ERROR |
---|
| 3487 | * and leaves an error message in the interpreter's result. |
---|
| 3488 | * |
---|
| 3489 | * Side effects: |
---|
| 3490 | * None. |
---|
| 3491 | * |
---|
| 3492 | *---------------------------------------------------------------------- |
---|
| 3493 | */ |
---|
| 3494 | |
---|
| 3495 | static int |
---|
| 3496 | ExprUnaryFunc(interp, eePtr, clientData) |
---|
| 3497 | Tcl_Interp *interp; /* The interpreter in which to execute the |
---|
| 3498 | * function. */ |
---|
| 3499 | ExecEnv *eePtr; /* Points to the environment for executing |
---|
| 3500 | * the function. */ |
---|
| 3501 | ClientData clientData; /* Contains the address of a procedure that |
---|
| 3502 | * takes one double argument and returns a |
---|
| 3503 | * double result. */ |
---|
| 3504 | { |
---|
| 3505 | StackItem *stackPtr; /* Cached evaluation stack base pointer. */ |
---|
| 3506 | register int stackTop; /* Cached top index of evaluation stack. */ |
---|
| 3507 | register Tcl_Obj *valuePtr; |
---|
| 3508 | Tcl_ObjType *tPtr; |
---|
| 3509 | double d, dResult; |
---|
| 3510 | long i; |
---|
| 3511 | int result = TCL_OK; |
---|
| 3512 | |
---|
| 3513 | double (*func) _ANSI_ARGS_((double)) = |
---|
| 3514 | (double (*)_ANSI_ARGS_((double))) clientData; |
---|
| 3515 | |
---|
| 3516 | /* |
---|
| 3517 | * Set stackPtr and stackTop from eePtr. |
---|
| 3518 | */ |
---|
| 3519 | |
---|
| 3520 | CACHE_STACK_INFO(); |
---|
| 3521 | |
---|
| 3522 | /* |
---|
| 3523 | * Pop the function's argument from the evaluation stack. Convert it |
---|
| 3524 | * to a double if necessary. |
---|
| 3525 | */ |
---|
| 3526 | |
---|
| 3527 | valuePtr = POP_OBJECT(); |
---|
| 3528 | tPtr = valuePtr->typePtr; |
---|
| 3529 | |
---|
| 3530 | if (tPtr == &tclIntType) { |
---|
| 3531 | d = (double) valuePtr->internalRep.longValue; |
---|
| 3532 | } else if (tPtr == &tclDoubleType) { |
---|
| 3533 | d = valuePtr->internalRep.doubleValue; |
---|
| 3534 | } else { /* FAILS IF STRING REP HAS NULLS */ |
---|
| 3535 | char *s = Tcl_GetStringFromObj(valuePtr, (int *) NULL); |
---|
| 3536 | |
---|
| 3537 | if (TclLooksLikeInt(s)) { |
---|
| 3538 | result = Tcl_GetLongFromObj((Tcl_Interp *) NULL, valuePtr, &i); |
---|
| 3539 | d = (double) valuePtr->internalRep.longValue; |
---|
| 3540 | } else { |
---|
| 3541 | result = Tcl_GetDoubleFromObj((Tcl_Interp *) NULL, valuePtr, &d); |
---|
| 3542 | } |
---|
| 3543 | if (result != TCL_OK) { |
---|
| 3544 | Tcl_ResetResult(interp); |
---|
| 3545 | Tcl_AppendToObj(Tcl_GetObjResult(interp), |
---|
| 3546 | "argument to math function didn't have numeric value", -1); |
---|
| 3547 | goto done; |
---|
| 3548 | } |
---|
| 3549 | } |
---|
| 3550 | |
---|
| 3551 | errno = 0; |
---|
| 3552 | dResult = (*func)(d); |
---|
| 3553 | if ((errno != 0) || IS_NAN(dResult) || IS_INF(dResult)) { |
---|
| 3554 | TclExprFloatError(interp, dResult); |
---|
| 3555 | result = TCL_ERROR; |
---|
| 3556 | goto done; |
---|
| 3557 | } |
---|
| 3558 | |
---|
| 3559 | /* |
---|
| 3560 | * Push a Tcl object holding the result. |
---|
| 3561 | */ |
---|
| 3562 | |
---|
| 3563 | PUSH_OBJECT(Tcl_NewDoubleObj(dResult)); |
---|
| 3564 | |
---|
| 3565 | /* |
---|
| 3566 | * Reflect the change to stackTop back in eePtr. |
---|
| 3567 | */ |
---|
| 3568 | |
---|
| 3569 | done: |
---|
| 3570 | Tcl_DecrRefCount(valuePtr); |
---|
| 3571 | DECACHE_STACK_INFO(); |
---|
| 3572 | return result; |
---|
| 3573 | } |
---|
| 3574 | |
---|
| 3575 | static int |
---|
| 3576 | ExprBinaryFunc(interp, eePtr, clientData) |
---|
| 3577 | Tcl_Interp *interp; /* The interpreter in which to execute the |
---|
| 3578 | * function. */ |
---|
| 3579 | ExecEnv *eePtr; /* Points to the environment for executing |
---|
| 3580 | * the function. */ |
---|
| 3581 | ClientData clientData; /* Contains the address of a procedure that |
---|
| 3582 | * takes two double arguments and |
---|
| 3583 | * returns a double result. */ |
---|
| 3584 | { |
---|
| 3585 | StackItem *stackPtr; /* Cached evaluation stack base pointer. */ |
---|
| 3586 | register int stackTop; /* Cached top index of evaluation stack. */ |
---|
| 3587 | register Tcl_Obj *valuePtr, *value2Ptr; |
---|
| 3588 | Tcl_ObjType *tPtr; |
---|
| 3589 | double d1, d2, dResult; |
---|
| 3590 | long i; |
---|
| 3591 | char *s; |
---|
| 3592 | int result = TCL_OK; |
---|
| 3593 | |
---|
| 3594 | double (*func) _ANSI_ARGS_((double, double)) |
---|
| 3595 | = (double (*)_ANSI_ARGS_((double, double))) clientData; |
---|
| 3596 | |
---|
| 3597 | /* |
---|
| 3598 | * Set stackPtr and stackTop from eePtr. |
---|
| 3599 | */ |
---|
| 3600 | |
---|
| 3601 | CACHE_STACK_INFO(); |
---|
| 3602 | |
---|
| 3603 | /* |
---|
| 3604 | * Pop the function's two arguments from the evaluation stack. Convert |
---|
| 3605 | * them to doubles if necessary. |
---|
| 3606 | */ |
---|
| 3607 | |
---|
| 3608 | value2Ptr = POP_OBJECT(); |
---|
| 3609 | valuePtr = POP_OBJECT(); |
---|
| 3610 | |
---|
| 3611 | tPtr = valuePtr->typePtr; |
---|
| 3612 | if (tPtr == &tclIntType) { |
---|
| 3613 | d1 = (double) valuePtr->internalRep.longValue; |
---|
| 3614 | } else if (tPtr == &tclDoubleType) { |
---|
| 3615 | d1 = valuePtr->internalRep.doubleValue; |
---|
| 3616 | } else { /* FAILS IF STRING REP HAS NULLS */ |
---|
| 3617 | s = Tcl_GetStringFromObj(valuePtr, (int *) NULL); |
---|
| 3618 | if (TclLooksLikeInt(s)) { |
---|
| 3619 | result = Tcl_GetLongFromObj((Tcl_Interp *) NULL, valuePtr, &i); |
---|
| 3620 | d1 = (double) valuePtr->internalRep.longValue; |
---|
| 3621 | } else { |
---|
| 3622 | result = Tcl_GetDoubleFromObj((Tcl_Interp *) NULL, valuePtr, &d1); |
---|
| 3623 | } |
---|
| 3624 | if (result != TCL_OK) { |
---|
| 3625 | badArg: |
---|
| 3626 | Tcl_ResetResult(interp); |
---|
| 3627 | Tcl_AppendToObj(Tcl_GetObjResult(interp), |
---|
| 3628 | "argument to math function didn't have numeric value", -1); |
---|
| 3629 | goto done; |
---|
| 3630 | } |
---|
| 3631 | } |
---|
| 3632 | |
---|
| 3633 | tPtr = value2Ptr->typePtr; |
---|
| 3634 | if (tPtr == &tclIntType) { |
---|
| 3635 | d2 = value2Ptr->internalRep.longValue; |
---|
| 3636 | } else if (tPtr == &tclDoubleType) { |
---|
| 3637 | d2 = value2Ptr->internalRep.doubleValue; |
---|
| 3638 | } else { /* FAILS IF STRING REP HAS NULLS */ |
---|
| 3639 | s = Tcl_GetStringFromObj(value2Ptr, (int *) NULL); |
---|
| 3640 | if (TclLooksLikeInt(s)) { |
---|
| 3641 | result = Tcl_GetLongFromObj((Tcl_Interp *) NULL, value2Ptr, &i); |
---|
| 3642 | d2 = (double) value2Ptr->internalRep.longValue; |
---|
| 3643 | } else { |
---|
| 3644 | result = Tcl_GetDoubleFromObj((Tcl_Interp *) NULL, value2Ptr, &d2); |
---|
| 3645 | } |
---|
| 3646 | if (result != TCL_OK) { |
---|
| 3647 | goto badArg; |
---|
| 3648 | } |
---|
| 3649 | } |
---|
| 3650 | |
---|
| 3651 | errno = 0; |
---|
| 3652 | dResult = (*func)(d1, d2); |
---|
| 3653 | if ((errno != 0) || IS_NAN(dResult) || IS_INF(dResult)) { |
---|
| 3654 | TclExprFloatError(interp, dResult); |
---|
| 3655 | result = TCL_ERROR; |
---|
| 3656 | goto done; |
---|
| 3657 | } |
---|
| 3658 | |
---|
| 3659 | /* |
---|
| 3660 | * Push a Tcl object holding the result. |
---|
| 3661 | */ |
---|
| 3662 | |
---|
| 3663 | PUSH_OBJECT(Tcl_NewDoubleObj(dResult)); |
---|
| 3664 | |
---|
| 3665 | /* |
---|
| 3666 | * Reflect the change to stackTop back in eePtr. |
---|
| 3667 | */ |
---|
| 3668 | |
---|
| 3669 | done: |
---|
| 3670 | Tcl_DecrRefCount(valuePtr); |
---|
| 3671 | Tcl_DecrRefCount(value2Ptr); |
---|
| 3672 | DECACHE_STACK_INFO(); |
---|
| 3673 | return result; |
---|
| 3674 | } |
---|
| 3675 | |
---|
| 3676 | static int |
---|
| 3677 | ExprAbsFunc(interp, eePtr, clientData) |
---|
| 3678 | Tcl_Interp *interp; /* The interpreter in which to execute the |
---|
| 3679 | * function. */ |
---|
| 3680 | ExecEnv *eePtr; /* Points to the environment for executing |
---|
| 3681 | * the function. */ |
---|
| 3682 | ClientData clientData; /* Ignored. */ |
---|
| 3683 | { |
---|
| 3684 | StackItem *stackPtr; /* Cached evaluation stack base pointer. */ |
---|
| 3685 | register int stackTop; /* Cached top index of evaluation stack. */ |
---|
| 3686 | register Tcl_Obj *valuePtr; |
---|
| 3687 | Tcl_ObjType *tPtr; |
---|
| 3688 | long i, iResult; |
---|
| 3689 | double d, dResult; |
---|
| 3690 | int result = TCL_OK; |
---|
| 3691 | |
---|
| 3692 | /* |
---|
| 3693 | * Set stackPtr and stackTop from eePtr. |
---|
| 3694 | */ |
---|
| 3695 | |
---|
| 3696 | CACHE_STACK_INFO(); |
---|
| 3697 | |
---|
| 3698 | /* |
---|
| 3699 | * Pop the argument from the evaluation stack. |
---|
| 3700 | */ |
---|
| 3701 | |
---|
| 3702 | valuePtr = POP_OBJECT(); |
---|
| 3703 | tPtr = valuePtr->typePtr; |
---|
| 3704 | |
---|
| 3705 | if (tPtr == &tclIntType) { |
---|
| 3706 | i = valuePtr->internalRep.longValue; |
---|
| 3707 | } else if (tPtr == &tclDoubleType) { |
---|
| 3708 | d = valuePtr->internalRep.doubleValue; |
---|
| 3709 | } else { /* FAILS IF STRING REP HAS NULLS */ |
---|
| 3710 | char *s = Tcl_GetStringFromObj(valuePtr, (int *) NULL); |
---|
| 3711 | |
---|
| 3712 | if (TclLooksLikeInt(s)) { |
---|
| 3713 | result = Tcl_GetLongFromObj((Tcl_Interp *) NULL, valuePtr, &i); |
---|
| 3714 | } else { |
---|
| 3715 | result = Tcl_GetDoubleFromObj((Tcl_Interp *) NULL, valuePtr, &d); |
---|
| 3716 | } |
---|
| 3717 | if (result != TCL_OK) { |
---|
| 3718 | Tcl_ResetResult(interp); |
---|
| 3719 | Tcl_AppendToObj(Tcl_GetObjResult(interp), |
---|
| 3720 | "argument to math function didn't have numeric value", -1); |
---|
| 3721 | goto done; |
---|
| 3722 | } |
---|
| 3723 | tPtr = valuePtr->typePtr; |
---|
| 3724 | } |
---|
| 3725 | |
---|
| 3726 | /* |
---|
| 3727 | * Push a Tcl object with the result. |
---|
| 3728 | */ |
---|
| 3729 | |
---|
| 3730 | if (tPtr == &tclIntType) { |
---|
| 3731 | if (i < 0) { |
---|
| 3732 | iResult = -i; |
---|
| 3733 | if (iResult < 0) { |
---|
| 3734 | Tcl_ResetResult(interp); |
---|
| 3735 | Tcl_AppendToObj(Tcl_GetObjResult(interp), |
---|
| 3736 | "integer value too large to represent", -1); |
---|
| 3737 | Tcl_SetErrorCode(interp, "ARITH", "IOVERFLOW", |
---|
| 3738 | "integer value too large to represent", (char *) NULL); |
---|
| 3739 | result = TCL_ERROR; |
---|
| 3740 | goto done; |
---|
| 3741 | } |
---|
| 3742 | } else { |
---|
| 3743 | iResult = i; |
---|
| 3744 | } |
---|
| 3745 | PUSH_OBJECT(Tcl_NewLongObj(iResult)); |
---|
| 3746 | } else { |
---|
| 3747 | if (d < 0.0) { |
---|
| 3748 | dResult = -d; |
---|
| 3749 | } else { |
---|
| 3750 | dResult = d; |
---|
| 3751 | } |
---|
| 3752 | if (IS_NAN(dResult) || IS_INF(dResult)) { |
---|
| 3753 | TclExprFloatError(interp, dResult); |
---|
| 3754 | result = TCL_ERROR; |
---|
| 3755 | goto done; |
---|
| 3756 | } |
---|
| 3757 | PUSH_OBJECT(Tcl_NewDoubleObj(dResult)); |
---|
| 3758 | } |
---|
| 3759 | |
---|
| 3760 | /* |
---|
| 3761 | * Reflect the change to stackTop back in eePtr. |
---|
| 3762 | */ |
---|
| 3763 | |
---|
| 3764 | done: |
---|
| 3765 | Tcl_DecrRefCount(valuePtr); |
---|
| 3766 | DECACHE_STACK_INFO(); |
---|
| 3767 | return result; |
---|
| 3768 | } |
---|
| 3769 | |
---|
| 3770 | static int |
---|
| 3771 | ExprDoubleFunc(interp, eePtr, clientData) |
---|
| 3772 | Tcl_Interp *interp; /* The interpreter in which to execute the |
---|
| 3773 | * function. */ |
---|
| 3774 | ExecEnv *eePtr; /* Points to the environment for executing |
---|
| 3775 | * the function. */ |
---|
| 3776 | ClientData clientData; /* Ignored. */ |
---|
| 3777 | { |
---|
| 3778 | StackItem *stackPtr; /* Cached evaluation stack base pointer. */ |
---|
| 3779 | register int stackTop; /* Cached top index of evaluation stack. */ |
---|
| 3780 | register Tcl_Obj *valuePtr; |
---|
| 3781 | double dResult; |
---|
| 3782 | long i; |
---|
| 3783 | int result = TCL_OK; |
---|
| 3784 | |
---|
| 3785 | /* |
---|
| 3786 | * Set stackPtr and stackTop from eePtr. |
---|
| 3787 | */ |
---|
| 3788 | |
---|
| 3789 | CACHE_STACK_INFO(); |
---|
| 3790 | |
---|
| 3791 | /* |
---|
| 3792 | * Pop the argument from the evaluation stack. |
---|
| 3793 | */ |
---|
| 3794 | |
---|
| 3795 | valuePtr = POP_OBJECT(); |
---|
| 3796 | if (valuePtr->typePtr == &tclIntType) { |
---|
| 3797 | dResult = (double) valuePtr->internalRep.longValue; |
---|
| 3798 | } else if (valuePtr->typePtr == &tclDoubleType) { |
---|
| 3799 | dResult = valuePtr->internalRep.doubleValue; |
---|
| 3800 | } else { /* FAILS IF STRING REP HAS NULLS */ |
---|
| 3801 | char *s = Tcl_GetStringFromObj(valuePtr, (int *) NULL); |
---|
| 3802 | |
---|
| 3803 | if (TclLooksLikeInt(s)) { |
---|
| 3804 | result = Tcl_GetLongFromObj((Tcl_Interp *) NULL, valuePtr, &i); |
---|
| 3805 | dResult = (double) valuePtr->internalRep.longValue; |
---|
| 3806 | } else { |
---|
| 3807 | result = Tcl_GetDoubleFromObj((Tcl_Interp *) NULL, valuePtr, |
---|
| 3808 | &dResult); |
---|
| 3809 | } |
---|
| 3810 | if (result != TCL_OK) { |
---|
| 3811 | Tcl_ResetResult(interp); |
---|
| 3812 | Tcl_AppendToObj(Tcl_GetObjResult(interp), |
---|
| 3813 | "argument to math function didn't have numeric value", -1); |
---|
| 3814 | goto done; |
---|
| 3815 | } |
---|
| 3816 | } |
---|
| 3817 | |
---|
| 3818 | /* |
---|
| 3819 | * Push a Tcl object with the result. |
---|
| 3820 | */ |
---|
| 3821 | |
---|
| 3822 | PUSH_OBJECT(Tcl_NewDoubleObj(dResult)); |
---|
| 3823 | |
---|
| 3824 | /* |
---|
| 3825 | * Reflect the change to stackTop back in eePtr. |
---|
| 3826 | */ |
---|
| 3827 | |
---|
| 3828 | done: |
---|
| 3829 | Tcl_DecrRefCount(valuePtr); |
---|
| 3830 | DECACHE_STACK_INFO(); |
---|
| 3831 | return result; |
---|
| 3832 | } |
---|
| 3833 | |
---|
| 3834 | static int |
---|
| 3835 | ExprIntFunc(interp, eePtr, clientData) |
---|
| 3836 | Tcl_Interp *interp; /* The interpreter in which to execute the |
---|
| 3837 | * function. */ |
---|
| 3838 | ExecEnv *eePtr; /* Points to the environment for executing |
---|
| 3839 | * the function. */ |
---|
| 3840 | ClientData clientData; /* Ignored. */ |
---|
| 3841 | { |
---|
| 3842 | StackItem *stackPtr; /* Cached evaluation stack base pointer. */ |
---|
| 3843 | register int stackTop; /* Cached top index of evaluation stack. */ |
---|
| 3844 | register Tcl_Obj *valuePtr; |
---|
| 3845 | Tcl_ObjType *tPtr; |
---|
| 3846 | long i = 0; /* Initialized to avoid compiler warning. */ |
---|
| 3847 | long iResult; |
---|
| 3848 | double d; |
---|
| 3849 | int result = TCL_OK; |
---|
| 3850 | |
---|
| 3851 | /* |
---|
| 3852 | * Set stackPtr and stackTop from eePtr. |
---|
| 3853 | */ |
---|
| 3854 | |
---|
| 3855 | CACHE_STACK_INFO(); |
---|
| 3856 | |
---|
| 3857 | /* |
---|
| 3858 | * Pop the argument from the evaluation stack. |
---|
| 3859 | */ |
---|
| 3860 | |
---|
| 3861 | valuePtr = POP_OBJECT(); |
---|
| 3862 | tPtr = valuePtr->typePtr; |
---|
| 3863 | |
---|
| 3864 | if (tPtr == &tclIntType) { |
---|
| 3865 | i = valuePtr->internalRep.longValue; |
---|
| 3866 | } else if (tPtr == &tclDoubleType) { |
---|
| 3867 | d = valuePtr->internalRep.doubleValue; |
---|
| 3868 | } else { /* FAILS IF STRING REP HAS NULLS */ |
---|
| 3869 | char *s = Tcl_GetStringFromObj(valuePtr, (int *) NULL); |
---|
| 3870 | |
---|
| 3871 | if (TclLooksLikeInt(s)) { |
---|
| 3872 | result = Tcl_GetLongFromObj((Tcl_Interp *) NULL, valuePtr, &i); |
---|
| 3873 | } else { |
---|
| 3874 | result = Tcl_GetDoubleFromObj((Tcl_Interp *) NULL, valuePtr, &d); |
---|
| 3875 | } |
---|
| 3876 | if (result != TCL_OK) { |
---|
| 3877 | Tcl_ResetResult(interp); |
---|
| 3878 | Tcl_AppendToObj(Tcl_GetObjResult(interp), |
---|
| 3879 | "argument to math function didn't have numeric value", -1); |
---|
| 3880 | goto done; |
---|
| 3881 | } |
---|
| 3882 | tPtr = valuePtr->typePtr; |
---|
| 3883 | } |
---|
| 3884 | |
---|
| 3885 | /* |
---|
| 3886 | * Push a Tcl object with the result. |
---|
| 3887 | */ |
---|
| 3888 | |
---|
| 3889 | if (tPtr == &tclIntType) { |
---|
| 3890 | iResult = i; |
---|
| 3891 | } else { |
---|
| 3892 | if (d < 0.0) { |
---|
| 3893 | if (d < (double) (long) LONG_MIN) { |
---|
| 3894 | tooLarge: |
---|
| 3895 | Tcl_ResetResult(interp); |
---|
| 3896 | Tcl_AppendToObj(Tcl_GetObjResult(interp), |
---|
| 3897 | "integer value too large to represent", -1); |
---|
| 3898 | Tcl_SetErrorCode(interp, "ARITH", "IOVERFLOW", |
---|
| 3899 | "integer value too large to represent", (char *) NULL); |
---|
| 3900 | result = TCL_ERROR; |
---|
| 3901 | goto done; |
---|
| 3902 | } |
---|
| 3903 | } else { |
---|
| 3904 | if (d > (double) LONG_MAX) { |
---|
| 3905 | goto tooLarge; |
---|
| 3906 | } |
---|
| 3907 | } |
---|
| 3908 | if (IS_NAN(d) || IS_INF(d)) { |
---|
| 3909 | TclExprFloatError(interp, d); |
---|
| 3910 | result = TCL_ERROR; |
---|
| 3911 | goto done; |
---|
| 3912 | } |
---|
| 3913 | iResult = (long) d; |
---|
| 3914 | } |
---|
| 3915 | PUSH_OBJECT(Tcl_NewLongObj(iResult)); |
---|
| 3916 | |
---|
| 3917 | /* |
---|
| 3918 | * Reflect the change to stackTop back in eePtr. |
---|
| 3919 | */ |
---|
| 3920 | |
---|
| 3921 | done: |
---|
| 3922 | Tcl_DecrRefCount(valuePtr); |
---|
| 3923 | DECACHE_STACK_INFO(); |
---|
| 3924 | return result; |
---|
| 3925 | } |
---|
| 3926 | |
---|
| 3927 | static int |
---|
| 3928 | ExprRoundFunc(interp, eePtr, clientData) |
---|
| 3929 | Tcl_Interp *interp; /* The interpreter in which to execute the |
---|
| 3930 | * function. */ |
---|
| 3931 | ExecEnv *eePtr; /* Points to the environment for executing |
---|
| 3932 | * the function. */ |
---|
| 3933 | ClientData clientData; /* Ignored. */ |
---|
| 3934 | { |
---|
| 3935 | StackItem *stackPtr; /* Cached evaluation stack base pointer. */ |
---|
| 3936 | register int stackTop; /* Cached top index of evaluation stack. */ |
---|
| 3937 | Tcl_Obj *valuePtr; |
---|
| 3938 | Tcl_ObjType *tPtr; |
---|
| 3939 | long i = 0; /* Initialized to avoid compiler warning. */ |
---|
| 3940 | long iResult; |
---|
| 3941 | double d, temp; |
---|
| 3942 | int result = TCL_OK; |
---|
| 3943 | |
---|
| 3944 | /* |
---|
| 3945 | * Set stackPtr and stackTop from eePtr. |
---|
| 3946 | */ |
---|
| 3947 | |
---|
| 3948 | CACHE_STACK_INFO(); |
---|
| 3949 | |
---|
| 3950 | /* |
---|
| 3951 | * Pop the argument from the evaluation stack. |
---|
| 3952 | */ |
---|
| 3953 | |
---|
| 3954 | valuePtr = POP_OBJECT(); |
---|
| 3955 | tPtr = valuePtr->typePtr; |
---|
| 3956 | |
---|
| 3957 | if (tPtr == &tclIntType) { |
---|
| 3958 | i = valuePtr->internalRep.longValue; |
---|
| 3959 | } else if (tPtr == &tclDoubleType) { |
---|
| 3960 | d = valuePtr->internalRep.doubleValue; |
---|
| 3961 | } else { /* FAILS IF STRING REP HAS NULLS */ |
---|
| 3962 | char *s = Tcl_GetStringFromObj(valuePtr, (int *) NULL); |
---|
| 3963 | |
---|
| 3964 | if (TclLooksLikeInt(s)) { |
---|
| 3965 | result = Tcl_GetLongFromObj((Tcl_Interp *) NULL, valuePtr, &i); |
---|
| 3966 | } else { |
---|
| 3967 | result = Tcl_GetDoubleFromObj((Tcl_Interp *) NULL, valuePtr, &d); |
---|
| 3968 | } |
---|
| 3969 | if (result != TCL_OK) { |
---|
| 3970 | Tcl_ResetResult(interp); |
---|
| 3971 | Tcl_AppendToObj(Tcl_GetObjResult(interp), |
---|
| 3972 | "argument to math function didn't have numeric value", -1); |
---|
| 3973 | goto done; |
---|
| 3974 | } |
---|
| 3975 | tPtr = valuePtr->typePtr; |
---|
| 3976 | } |
---|
| 3977 | |
---|
| 3978 | /* |
---|
| 3979 | * Push a Tcl object with the result. |
---|
| 3980 | */ |
---|
| 3981 | |
---|
| 3982 | if (tPtr == &tclIntType) { |
---|
| 3983 | iResult = i; |
---|
| 3984 | } else { |
---|
| 3985 | if (d < 0.0) { |
---|
| 3986 | if (d <= (((double) (long) LONG_MIN) - 0.5)) { |
---|
| 3987 | tooLarge: |
---|
| 3988 | Tcl_ResetResult(interp); |
---|
| 3989 | Tcl_AppendToObj(Tcl_GetObjResult(interp), |
---|
| 3990 | "integer value too large to represent", -1); |
---|
| 3991 | Tcl_SetErrorCode(interp, "ARITH", "IOVERFLOW", |
---|
| 3992 | "integer value too large to represent", |
---|
| 3993 | (char *) NULL); |
---|
| 3994 | result = TCL_ERROR; |
---|
| 3995 | goto done; |
---|
| 3996 | } |
---|
| 3997 | temp = (long) (d - 0.5); |
---|
| 3998 | } else { |
---|
| 3999 | if (d >= (((double) LONG_MAX + 0.5))) { |
---|
| 4000 | goto tooLarge; |
---|
| 4001 | } |
---|
| 4002 | temp = (long) (d + 0.5); |
---|
| 4003 | } |
---|
| 4004 | if (IS_NAN(temp) || IS_INF(temp)) { |
---|
| 4005 | TclExprFloatError(interp, temp); |
---|
| 4006 | result = TCL_ERROR; |
---|
| 4007 | goto done; |
---|
| 4008 | } |
---|
| 4009 | iResult = (long) temp; |
---|
| 4010 | } |
---|
| 4011 | PUSH_OBJECT(Tcl_NewLongObj(iResult)); |
---|
| 4012 | |
---|
| 4013 | /* |
---|
| 4014 | * Reflect the change to stackTop back in eePtr. |
---|
| 4015 | */ |
---|
| 4016 | |
---|
| 4017 | done: |
---|
| 4018 | Tcl_DecrRefCount(valuePtr); |
---|
| 4019 | DECACHE_STACK_INFO(); |
---|
| 4020 | return result; |
---|
| 4021 | } |
---|
| 4022 | |
---|
| 4023 | /* |
---|
| 4024 | *---------------------------------------------------------------------- |
---|
| 4025 | * |
---|
| 4026 | * ExprCallMathFunc -- |
---|
| 4027 | * |
---|
| 4028 | * This procedure is invoked to call a non-builtin math function |
---|
| 4029 | * during the execution of an expression. |
---|
| 4030 | * |
---|
| 4031 | * Results: |
---|
| 4032 | * TCL_OK is returned if all went well and the function's value |
---|
| 4033 | * was computed successfully. If an error occurred, TCL_ERROR |
---|
| 4034 | * is returned and an error message is left in the interpreter's |
---|
| 4035 | * result. After a successful return this procedure pushes a Tcl object |
---|
| 4036 | * holding the result. |
---|
| 4037 | * |
---|
| 4038 | * Side effects: |
---|
| 4039 | * None, unless the called math function has side effects. |
---|
| 4040 | * |
---|
| 4041 | *---------------------------------------------------------------------- |
---|
| 4042 | */ |
---|
| 4043 | |
---|
| 4044 | static int |
---|
| 4045 | ExprCallMathFunc(interp, eePtr, objc, objv) |
---|
| 4046 | Tcl_Interp *interp; /* The interpreter in which to execute the |
---|
| 4047 | * function. */ |
---|
| 4048 | ExecEnv *eePtr; /* Points to the environment for executing |
---|
| 4049 | * the function. */ |
---|
| 4050 | int objc; /* Number of arguments. The function name is |
---|
| 4051 | * the 0-th argument. */ |
---|
| 4052 | Tcl_Obj **objv; /* The array of arguments. The function name |
---|
| 4053 | * is objv[0]. */ |
---|
| 4054 | { |
---|
| 4055 | Interp *iPtr = (Interp *) interp; |
---|
| 4056 | StackItem *stackPtr; /* Cached evaluation stack base pointer. */ |
---|
| 4057 | register int stackTop; /* Cached top index of evaluation stack. */ |
---|
| 4058 | char *funcName; |
---|
| 4059 | Tcl_HashEntry *hPtr; |
---|
| 4060 | MathFunc *mathFuncPtr; /* Information about math function. */ |
---|
| 4061 | Tcl_Value args[MAX_MATH_ARGS]; /* Arguments for function call. */ |
---|
| 4062 | Tcl_Value funcResult; /* Result of function call as Tcl_Value. */ |
---|
| 4063 | register Tcl_Obj *valuePtr; |
---|
| 4064 | Tcl_ObjType *tPtr; |
---|
| 4065 | long i; |
---|
| 4066 | double d; |
---|
| 4067 | int j, k, result; |
---|
| 4068 | |
---|
| 4069 | Tcl_ResetResult(interp); |
---|
| 4070 | |
---|
| 4071 | /* |
---|
| 4072 | * Set stackPtr and stackTop from eePtr. |
---|
| 4073 | */ |
---|
| 4074 | |
---|
| 4075 | CACHE_STACK_INFO(); |
---|
| 4076 | |
---|
| 4077 | /* |
---|
| 4078 | * Look up the MathFunc record for the function. |
---|
| 4079 | * THIS FAILS IF THE OBJECT'S STRING REP CONTAINS NULLS. |
---|
| 4080 | */ |
---|
| 4081 | |
---|
| 4082 | funcName = Tcl_GetStringFromObj(objv[0], (int *) NULL); |
---|
| 4083 | hPtr = Tcl_FindHashEntry(&iPtr->mathFuncTable, funcName); |
---|
| 4084 | if (hPtr == NULL) { |
---|
| 4085 | Tcl_AppendStringsToObj(Tcl_GetObjResult(interp), |
---|
| 4086 | "unknown math function \"", funcName, "\"", (char *) NULL); |
---|
| 4087 | result = TCL_ERROR; |
---|
| 4088 | goto done; |
---|
| 4089 | } |
---|
| 4090 | mathFuncPtr = (MathFunc *) Tcl_GetHashValue(hPtr); |
---|
| 4091 | if (mathFuncPtr->numArgs != (objc-1)) { |
---|
| 4092 | panic("ExprCallMathFunc: expected number of args %d != actual number %d", |
---|
| 4093 | mathFuncPtr->numArgs, objc); |
---|
| 4094 | result = TCL_ERROR; |
---|
| 4095 | goto done; |
---|
| 4096 | } |
---|
| 4097 | |
---|
| 4098 | /* |
---|
| 4099 | * Collect the arguments for the function, if there are any, into the |
---|
| 4100 | * array "args". Note that args[0] will have the Tcl_Value that |
---|
| 4101 | * corresponds to objv[1]. |
---|
| 4102 | */ |
---|
| 4103 | |
---|
| 4104 | for (j = 1, k = 0; j < objc; j++, k++) { |
---|
| 4105 | valuePtr = objv[j]; |
---|
| 4106 | tPtr = valuePtr->typePtr; |
---|
| 4107 | |
---|
| 4108 | if (tPtr == &tclIntType) { |
---|
| 4109 | i = valuePtr->internalRep.longValue; |
---|
| 4110 | } else if (tPtr == &tclDoubleType) { |
---|
| 4111 | d = valuePtr->internalRep.doubleValue; |
---|
| 4112 | } else { |
---|
| 4113 | /* |
---|
| 4114 | * Try to convert to int first then double. |
---|
| 4115 | * FAILS IF STRING REP HAS NULLS. |
---|
| 4116 | */ |
---|
| 4117 | |
---|
| 4118 | char *s = Tcl_GetStringFromObj(valuePtr, (int *) NULL); |
---|
| 4119 | |
---|
| 4120 | if (TclLooksLikeInt(s)) { |
---|
| 4121 | result = Tcl_GetLongFromObj((Tcl_Interp *) NULL, valuePtr, &i); |
---|
| 4122 | } else { |
---|
| 4123 | result = Tcl_GetDoubleFromObj((Tcl_Interp *) NULL, |
---|
| 4124 | valuePtr, &d); |
---|
| 4125 | } |
---|
| 4126 | if (result != TCL_OK) { |
---|
| 4127 | Tcl_AppendToObj(Tcl_GetObjResult(interp), |
---|
| 4128 | "argument to math function didn't have numeric value", -1); |
---|
| 4129 | goto done; |
---|
| 4130 | } |
---|
| 4131 | tPtr = valuePtr->typePtr; |
---|
| 4132 | } |
---|
| 4133 | |
---|
| 4134 | /* |
---|
| 4135 | * Copy the object's numeric value to the argument record, |
---|
| 4136 | * converting it if necessary. |
---|
| 4137 | */ |
---|
| 4138 | |
---|
| 4139 | if (tPtr == &tclIntType) { |
---|
| 4140 | if (mathFuncPtr->argTypes[k] == TCL_DOUBLE) { |
---|
| 4141 | args[k].type = TCL_DOUBLE; |
---|
| 4142 | args[k].doubleValue = i; |
---|
| 4143 | } else { |
---|
| 4144 | args[k].type = TCL_INT; |
---|
| 4145 | args[k].intValue = i; |
---|
| 4146 | } |
---|
| 4147 | } else { |
---|
| 4148 | if (mathFuncPtr->argTypes[k] == TCL_INT) { |
---|
| 4149 | args[k].type = TCL_INT; |
---|
| 4150 | args[k].intValue = (long) d; |
---|
| 4151 | } else { |
---|
| 4152 | args[k].type = TCL_DOUBLE; |
---|
| 4153 | args[k].doubleValue = d; |
---|
| 4154 | } |
---|
| 4155 | } |
---|
| 4156 | } |
---|
| 4157 | |
---|
| 4158 | /* |
---|
| 4159 | * Invoke the function and copy its result back into valuePtr. |
---|
| 4160 | */ |
---|
| 4161 | |
---|
| 4162 | tcl_MathInProgress++; |
---|
| 4163 | result = (*mathFuncPtr->proc)(mathFuncPtr->clientData, interp, args, |
---|
| 4164 | &funcResult); |
---|
| 4165 | tcl_MathInProgress--; |
---|
| 4166 | if (result != TCL_OK) { |
---|
| 4167 | goto done; |
---|
| 4168 | } |
---|
| 4169 | |
---|
| 4170 | /* |
---|
| 4171 | * Pop the objc top stack elements and decrement their ref counts. |
---|
| 4172 | */ |
---|
| 4173 | |
---|
| 4174 | i = (stackTop - (objc-1)); |
---|
| 4175 | while (i <= stackTop) { |
---|
| 4176 | valuePtr = stackPtr[i].o; |
---|
| 4177 | Tcl_DecrRefCount(valuePtr); |
---|
| 4178 | i++; |
---|
| 4179 | } |
---|
| 4180 | stackTop -= objc; |
---|
| 4181 | |
---|
| 4182 | /* |
---|
| 4183 | * Push the call's object result. |
---|
| 4184 | */ |
---|
| 4185 | |
---|
| 4186 | if (funcResult.type == TCL_INT) { |
---|
| 4187 | PUSH_OBJECT(Tcl_NewLongObj(funcResult.intValue)); |
---|
| 4188 | } else { |
---|
| 4189 | d = funcResult.doubleValue; |
---|
| 4190 | if (IS_NAN(d) || IS_INF(d)) { |
---|
| 4191 | TclExprFloatError(interp, d); |
---|
| 4192 | result = TCL_ERROR; |
---|
| 4193 | goto done; |
---|
| 4194 | } |
---|
| 4195 | PUSH_OBJECT(Tcl_NewDoubleObj(d)); |
---|
| 4196 | } |
---|
| 4197 | |
---|
| 4198 | /* |
---|
| 4199 | * Reflect the change to stackTop back in eePtr. |
---|
| 4200 | */ |
---|
| 4201 | |
---|
| 4202 | done: |
---|
| 4203 | DECACHE_STACK_INFO(); |
---|
| 4204 | return result; |
---|
| 4205 | } |
---|
| 4206 | |
---|
| 4207 | /* |
---|
| 4208 | *---------------------------------------------------------------------- |
---|
| 4209 | * |
---|
| 4210 | * TclExprFloatError -- |
---|
| 4211 | * |
---|
| 4212 | * This procedure is called when an error occurs during a |
---|
| 4213 | * floating-point operation. It reads errno and sets |
---|
| 4214 | * interp->objResultPtr accordingly. |
---|
| 4215 | * |
---|
| 4216 | * Results: |
---|
| 4217 | * interp->objResultPtr is set to hold an error message. |
---|
| 4218 | * |
---|
| 4219 | * Side effects: |
---|
| 4220 | * None. |
---|
| 4221 | * |
---|
| 4222 | *---------------------------------------------------------------------- |
---|
| 4223 | */ |
---|
| 4224 | |
---|
| 4225 | void |
---|
| 4226 | TclExprFloatError(interp, value) |
---|
| 4227 | Tcl_Interp *interp; /* Where to store error message. */ |
---|
| 4228 | double value; /* Value returned after error; used to |
---|
| 4229 | * distinguish underflows from overflows. */ |
---|
| 4230 | { |
---|
| 4231 | char *s; |
---|
| 4232 | |
---|
| 4233 | Tcl_ResetResult(interp); |
---|
| 4234 | if ((errno == EDOM) || (value != value)) { |
---|
| 4235 | s = "domain error: argument not in valid range"; |
---|
| 4236 | Tcl_AppendToObj(Tcl_GetObjResult(interp), s, -1); |
---|
| 4237 | Tcl_SetErrorCode(interp, "ARITH", "DOMAIN", s, (char *) NULL); |
---|
| 4238 | } else if ((errno == ERANGE) || IS_INF(value)) { |
---|
| 4239 | if (value == 0.0) { |
---|
| 4240 | s = "floating-point value too small to represent"; |
---|
| 4241 | Tcl_AppendToObj(Tcl_GetObjResult(interp), s, -1); |
---|
| 4242 | Tcl_SetErrorCode(interp, "ARITH", "UNDERFLOW", s, (char *) NULL); |
---|
| 4243 | } else { |
---|
| 4244 | s = "floating-point value too large to represent"; |
---|
| 4245 | Tcl_AppendToObj(Tcl_GetObjResult(interp), s, -1); |
---|
| 4246 | Tcl_SetErrorCode(interp, "ARITH", "OVERFLOW", s, (char *) NULL); |
---|
| 4247 | } |
---|
| 4248 | } else { /* FAILS IF STRING REP CONTAINS NULLS */ |
---|
| 4249 | char msg[100]; |
---|
| 4250 | |
---|
| 4251 | sprintf(msg, "unknown floating-point error, errno = %d", errno); |
---|
| 4252 | Tcl_AppendToObj(Tcl_GetObjResult(interp), msg, -1); |
---|
| 4253 | Tcl_SetErrorCode(interp, "ARITH", "UNKNOWN", msg, (char *) NULL); |
---|
| 4254 | } |
---|
| 4255 | } |
---|
| 4256 | |
---|
| 4257 | #ifdef TCL_COMPILE_STATS |
---|
| 4258 | /* |
---|
| 4259 | *---------------------------------------------------------------------- |
---|
| 4260 | * |
---|
| 4261 | * TclLog2 -- |
---|
| 4262 | * |
---|
| 4263 | * Procedure used while collecting compilation statistics to determine |
---|
| 4264 | * the log base 2 of an integer. |
---|
| 4265 | * |
---|
| 4266 | * Results: |
---|
| 4267 | * Returns the log base 2 of the operand. If the argument is less |
---|
| 4268 | * than or equal to zero, a zero is returned. |
---|
| 4269 | * |
---|
| 4270 | * Side effects: |
---|
| 4271 | * None. |
---|
| 4272 | * |
---|
| 4273 | *---------------------------------------------------------------------- |
---|
| 4274 | */ |
---|
| 4275 | |
---|
| 4276 | int |
---|
| 4277 | TclLog2(value) |
---|
| 4278 | register int value; /* The integer for which to compute the |
---|
| 4279 | * log base 2. */ |
---|
| 4280 | { |
---|
| 4281 | register int n = value; |
---|
| 4282 | register int result = 0; |
---|
| 4283 | |
---|
| 4284 | while (n > 1) { |
---|
| 4285 | n = n >> 1; |
---|
| 4286 | result++; |
---|
| 4287 | } |
---|
| 4288 | return result; |
---|
| 4289 | } |
---|
| 4290 | |
---|
| 4291 | /* |
---|
| 4292 | *---------------------------------------------------------------------- |
---|
| 4293 | * |
---|
| 4294 | * EvalStatsCmd -- |
---|
| 4295 | * |
---|
| 4296 | * Implements the "evalstats" command that prints instruction execution |
---|
| 4297 | * counts to stdout. |
---|
| 4298 | * |
---|
| 4299 | * Results: |
---|
| 4300 | * Standard Tcl results. |
---|
| 4301 | * |
---|
| 4302 | * Side effects: |
---|
| 4303 | * None. |
---|
| 4304 | * |
---|
| 4305 | *---------------------------------------------------------------------- |
---|
| 4306 | */ |
---|
| 4307 | |
---|
| 4308 | static int |
---|
| 4309 | EvalStatsCmd(unused, interp, argc, argv) |
---|
| 4310 | ClientData unused; /* Unused. */ |
---|
| 4311 | Tcl_Interp *interp; /* The current interpreter. */ |
---|
| 4312 | int argc; /* The number of arguments. */ |
---|
| 4313 | char **argv; /* The argument strings. */ |
---|
| 4314 | { |
---|
| 4315 | register double total = 0.0; |
---|
| 4316 | register int i; |
---|
| 4317 | int maxSizeDecade = 0; |
---|
| 4318 | double totalHeaderBytes = (tclNumCompilations * sizeof(ByteCode)); |
---|
| 4319 | |
---|
| 4320 | for (i = 0; i < 256; i++) { |
---|
| 4321 | if (instructionCount[i] != 0) { |
---|
| 4322 | total += instructionCount[i]; |
---|
| 4323 | } |
---|
| 4324 | } |
---|
| 4325 | |
---|
| 4326 | for (i = 31; i >= 0; i--) { |
---|
| 4327 | if ((tclSourceCount[i] > 0) && (tclByteCodeCount[i] > 0)) { |
---|
| 4328 | maxSizeDecade = i; |
---|
| 4329 | break; |
---|
| 4330 | } |
---|
| 4331 | } |
---|
| 4332 | |
---|
| 4333 | fprintf(stdout, "\nNumber of compilations %ld\n", |
---|
| 4334 | tclNumCompilations); |
---|
| 4335 | fprintf(stdout, "Number of executions %ld\n", |
---|
| 4336 | numExecutions); |
---|
| 4337 | fprintf(stdout, "Average executions/compilation %.0f\n", |
---|
| 4338 | ((float) numExecutions/tclNumCompilations)); |
---|
| 4339 | |
---|
| 4340 | fprintf(stdout, "\nInstructions executed %.0f\n", |
---|
| 4341 | total); |
---|
| 4342 | fprintf(stdout, "Average instructions/compile %.0f\n", |
---|
| 4343 | total/tclNumCompilations); |
---|
| 4344 | fprintf(stdout, "Average instructions/execution %.0f\n", |
---|
| 4345 | total/numExecutions); |
---|
| 4346 | |
---|
| 4347 | fprintf(stdout, "\nTotal source bytes %.6g\n", |
---|
| 4348 | tclTotalSourceBytes); |
---|
| 4349 | fprintf(stdout, "Total code bytes %.6g\n", |
---|
| 4350 | tclTotalCodeBytes); |
---|
| 4351 | fprintf(stdout, "Average code/compilation %.0f\n", |
---|
| 4352 | tclTotalCodeBytes/tclNumCompilations); |
---|
| 4353 | fprintf(stdout, "Average code/source %.2f\n", |
---|
| 4354 | tclTotalCodeBytes/tclTotalSourceBytes); |
---|
| 4355 | fprintf(stdout, "Current source bytes %.6g\n", |
---|
| 4356 | tclCurrentSourceBytes); |
---|
| 4357 | fprintf(stdout, "Current code bytes %.6g\n", |
---|
| 4358 | tclCurrentCodeBytes); |
---|
| 4359 | fprintf(stdout, "Current code/source %.2f\n", |
---|
| 4360 | tclCurrentCodeBytes/tclCurrentSourceBytes); |
---|
| 4361 | |
---|
| 4362 | fprintf(stdout, "\nTotal objects allocated %ld\n", |
---|
| 4363 | tclObjsAlloced); |
---|
| 4364 | fprintf(stdout, "Total objects freed %ld\n", |
---|
| 4365 | tclObjsFreed); |
---|
| 4366 | fprintf(stdout, "Current objects: %ld\n", |
---|
| 4367 | (tclObjsAlloced - tclObjsFreed)); |
---|
| 4368 | |
---|
| 4369 | fprintf(stdout, "\nBreakdown of code byte requirements:\n"); |
---|
| 4370 | fprintf(stdout, " Total bytes Pct of Avg per\n"); |
---|
| 4371 | fprintf(stdout, " all code compile\n"); |
---|
| 4372 | fprintf(stdout, "Total code %12.6g 100%% %8.2f\n", |
---|
| 4373 | tclTotalCodeBytes, tclTotalCodeBytes/tclNumCompilations); |
---|
| 4374 | fprintf(stdout, "Header %12.6g %8.2f%% %8.2f\n", |
---|
| 4375 | totalHeaderBytes, |
---|
| 4376 | ((totalHeaderBytes * 100.0) / tclTotalCodeBytes), |
---|
| 4377 | totalHeaderBytes/tclNumCompilations); |
---|
| 4378 | fprintf(stdout, "Instructions %12.6g %8.2f%% %8.2f\n", |
---|
| 4379 | tclTotalInstBytes, |
---|
| 4380 | ((tclTotalInstBytes * 100.0) / tclTotalCodeBytes), |
---|
| 4381 | tclTotalInstBytes/tclNumCompilations); |
---|
| 4382 | fprintf(stdout, "Objects %12.6g %8.2f%% %8.2f\n", |
---|
| 4383 | tclTotalObjBytes, |
---|
| 4384 | ((tclTotalObjBytes * 100.0) / tclTotalCodeBytes), |
---|
| 4385 | tclTotalObjBytes/tclNumCompilations); |
---|
| 4386 | fprintf(stdout, "Exception table %12.6g %8.2f%% %8.2f\n", |
---|
| 4387 | tclTotalExceptBytes, |
---|
| 4388 | ((tclTotalExceptBytes * 100.0) / tclTotalCodeBytes), |
---|
| 4389 | tclTotalExceptBytes/tclNumCompilations); |
---|
| 4390 | fprintf(stdout, "Auxiliary data %12.6g %8.2f%% %8.2f\n", |
---|
| 4391 | tclTotalAuxBytes, |
---|
| 4392 | ((tclTotalAuxBytes * 100.0) / tclTotalCodeBytes), |
---|
| 4393 | tclTotalAuxBytes/tclNumCompilations); |
---|
| 4394 | fprintf(stdout, "Command map %12.6g %8.2f%% %8.2f\n", |
---|
| 4395 | tclTotalCmdMapBytes, |
---|
| 4396 | ((tclTotalCmdMapBytes * 100.0) / tclTotalCodeBytes), |
---|
| 4397 | tclTotalCmdMapBytes/tclNumCompilations); |
---|
| 4398 | |
---|
| 4399 | fprintf(stdout, "\nSource and ByteCode size distributions:\n"); |
---|
| 4400 | fprintf(stdout, " binary decade source code\n"); |
---|
| 4401 | for (i = 0; i <= maxSizeDecade; i++) { |
---|
| 4402 | int decadeLow, decadeHigh; |
---|
| 4403 | |
---|
| 4404 | if (i == 0) { |
---|
| 4405 | decadeLow = 0; |
---|
| 4406 | } else { |
---|
| 4407 | decadeLow = 1 << i; |
---|
| 4408 | } |
---|
| 4409 | decadeHigh = (1 << (i+1)) - 1; |
---|
| 4410 | fprintf(stdout, " %6d -%6d %6d %6d\n", |
---|
| 4411 | decadeLow, decadeHigh, |
---|
| 4412 | tclSourceCount[i], tclByteCodeCount[i]); |
---|
| 4413 | } |
---|
| 4414 | |
---|
| 4415 | fprintf(stdout, "\nInstruction counts:\n"); |
---|
| 4416 | for (i = 0; i < 256; i++) { |
---|
| 4417 | if (instructionCount[i]) { |
---|
| 4418 | fprintf(stdout, "%20s %8d %6.2f%%\n", |
---|
| 4419 | opName[i], instructionCount[i], |
---|
| 4420 | (instructionCount[i] * 100.0)/total); |
---|
| 4421 | } |
---|
| 4422 | } |
---|
| 4423 | |
---|
| 4424 | #ifdef TCL_MEM_DEBUG |
---|
| 4425 | fprintf(stdout, "\nHeap Statistics:\n"); |
---|
| 4426 | TclDumpMemoryInfo(stdout); |
---|
| 4427 | #endif /* TCL_MEM_DEBUG */ |
---|
| 4428 | |
---|
| 4429 | return TCL_OK; |
---|
| 4430 | } |
---|
| 4431 | #endif /* TCL_COMPILE_STATS */ |
---|
| 4432 | |
---|
| 4433 | /* |
---|
| 4434 | *---------------------------------------------------------------------- |
---|
| 4435 | * |
---|
| 4436 | * Tcl_GetCommandFromObj -- |
---|
| 4437 | * |
---|
| 4438 | * Returns the command specified by the name in a Tcl_Obj. |
---|
| 4439 | * |
---|
| 4440 | * Results: |
---|
| 4441 | * Returns a token for the command if it is found. Otherwise, if it |
---|
| 4442 | * can't be found or there is an error, returns NULL. |
---|
| 4443 | * |
---|
| 4444 | * Side effects: |
---|
| 4445 | * May update the internal representation for the object, caching |
---|
| 4446 | * the command reference so that the next time this procedure is |
---|
| 4447 | * called with the same object, the command can be found quickly. |
---|
| 4448 | * |
---|
| 4449 | *---------------------------------------------------------------------- |
---|
| 4450 | */ |
---|
| 4451 | |
---|
| 4452 | Tcl_Command |
---|
| 4453 | Tcl_GetCommandFromObj(interp, objPtr) |
---|
| 4454 | Tcl_Interp *interp; /* The interpreter in which to resolve the |
---|
| 4455 | * command and to report errors. */ |
---|
| 4456 | register Tcl_Obj *objPtr; /* The object containing the command's |
---|
| 4457 | * name. If the name starts with "::", will |
---|
| 4458 | * be looked up in global namespace. Else, |
---|
| 4459 | * looked up first in the current namespace |
---|
| 4460 | * if contextNsPtr is NULL, then in global |
---|
| 4461 | * namespace. */ |
---|
| 4462 | { |
---|
| 4463 | Interp *iPtr = (Interp *) interp; |
---|
| 4464 | register ResolvedCmdName *resPtr; |
---|
| 4465 | register Command *cmdPtr; |
---|
| 4466 | Namespace *currNsPtr; |
---|
| 4467 | int result; |
---|
| 4468 | |
---|
| 4469 | /* |
---|
| 4470 | * Get the internal representation, converting to a command type if |
---|
| 4471 | * needed. The internal representation is a ResolvedCmdName that points |
---|
| 4472 | * to the actual command. |
---|
| 4473 | */ |
---|
| 4474 | |
---|
| 4475 | if (objPtr->typePtr != &tclCmdNameType) { |
---|
| 4476 | result = tclCmdNameType.setFromAnyProc(interp, objPtr); |
---|
| 4477 | if (result != TCL_OK) { |
---|
| 4478 | return (Tcl_Command) NULL; |
---|
| 4479 | } |
---|
| 4480 | } |
---|
| 4481 | resPtr = (ResolvedCmdName *) objPtr->internalRep.otherValuePtr; |
---|
| 4482 | |
---|
| 4483 | /* |
---|
| 4484 | * Get the current namespace. |
---|
| 4485 | */ |
---|
| 4486 | |
---|
| 4487 | if (iPtr->varFramePtr != NULL) { |
---|
| 4488 | currNsPtr = iPtr->varFramePtr->nsPtr; |
---|
| 4489 | } else { |
---|
| 4490 | currNsPtr = iPtr->globalNsPtr; |
---|
| 4491 | } |
---|
| 4492 | |
---|
| 4493 | /* |
---|
| 4494 | * Check the context namespace and the namespace epoch of the resolved |
---|
| 4495 | * symbol to make sure that it is fresh. If not, then force another |
---|
| 4496 | * conversion to the command type, to discard the old rep and create a |
---|
| 4497 | * new one. Note that we verify that the namespace id of the context |
---|
| 4498 | * namespace is the same as the one we cached; this insures that the |
---|
| 4499 | * namespace wasn't deleted and a new one created at the same address |
---|
| 4500 | * with the same command epoch. |
---|
| 4501 | */ |
---|
| 4502 | |
---|
| 4503 | cmdPtr = NULL; |
---|
| 4504 | if ((resPtr != NULL) |
---|
| 4505 | && (resPtr->refNsPtr == currNsPtr) |
---|
| 4506 | && (resPtr->refNsId == currNsPtr->nsId) |
---|
| 4507 | && (resPtr->refNsCmdEpoch == currNsPtr->cmdRefEpoch)) { |
---|
| 4508 | cmdPtr = resPtr->cmdPtr; |
---|
| 4509 | if (cmdPtr->cmdEpoch != resPtr->cmdEpoch) { |
---|
| 4510 | cmdPtr = NULL; |
---|
| 4511 | } |
---|
| 4512 | } |
---|
| 4513 | |
---|
| 4514 | if (cmdPtr == NULL) { |
---|
| 4515 | result = tclCmdNameType.setFromAnyProc(interp, objPtr); |
---|
| 4516 | if (result != TCL_OK) { |
---|
| 4517 | return (Tcl_Command) NULL; |
---|
| 4518 | } |
---|
| 4519 | resPtr = (ResolvedCmdName *) objPtr->internalRep.otherValuePtr; |
---|
| 4520 | if (resPtr != NULL) { |
---|
| 4521 | cmdPtr = resPtr->cmdPtr; |
---|
| 4522 | } |
---|
| 4523 | } |
---|
| 4524 | |
---|
| 4525 | if (cmdPtr == NULL) { |
---|
| 4526 | return (Tcl_Command) NULL; |
---|
| 4527 | } |
---|
| 4528 | return (Tcl_Command) cmdPtr; |
---|
| 4529 | } |
---|
| 4530 | |
---|
| 4531 | /* |
---|
| 4532 | *---------------------------------------------------------------------- |
---|
| 4533 | * |
---|
| 4534 | * FreeCmdNameInternalRep -- |
---|
| 4535 | * |
---|
| 4536 | * Frees the resources associated with a cmdName object's internal |
---|
| 4537 | * representation. |
---|
| 4538 | * |
---|
| 4539 | * Results: |
---|
| 4540 | * None. |
---|
| 4541 | * |
---|
| 4542 | * Side effects: |
---|
| 4543 | * Decrements the ref count of any cached ResolvedCmdName structure |
---|
| 4544 | * pointed to by the cmdName's internal representation. If this is |
---|
| 4545 | * the last use of the ResolvedCmdName, it is freed. This in turn |
---|
| 4546 | * decrements the ref count of the Command structure pointed to by |
---|
| 4547 | * the ResolvedSymbol, which may free the Command structure. |
---|
| 4548 | * |
---|
| 4549 | *---------------------------------------------------------------------- |
---|
| 4550 | */ |
---|
| 4551 | |
---|
| 4552 | static void |
---|
| 4553 | FreeCmdNameInternalRep(objPtr) |
---|
| 4554 | register Tcl_Obj *objPtr; /* CmdName object with internal |
---|
| 4555 | * representation to free. */ |
---|
| 4556 | { |
---|
| 4557 | register ResolvedCmdName *resPtr = |
---|
| 4558 | (ResolvedCmdName *) objPtr->internalRep.otherValuePtr; |
---|
| 4559 | |
---|
| 4560 | if (resPtr != NULL) { |
---|
| 4561 | /* |
---|
| 4562 | * Decrement the reference count of the ResolvedCmdName structure. |
---|
| 4563 | * If there are no more uses, free the ResolvedCmdName structure. |
---|
| 4564 | */ |
---|
| 4565 | |
---|
| 4566 | resPtr->refCount--; |
---|
| 4567 | if (resPtr->refCount == 0) { |
---|
| 4568 | /* |
---|
| 4569 | * Now free the cached command, unless it is still in its |
---|
| 4570 | * hash table or if there are other references to it |
---|
| 4571 | * from other cmdName objects. |
---|
| 4572 | */ |
---|
| 4573 | |
---|
| 4574 | Command *cmdPtr = resPtr->cmdPtr; |
---|
| 4575 | TclCleanupCommand(cmdPtr); |
---|
| 4576 | ckfree((char *) resPtr); |
---|
| 4577 | } |
---|
| 4578 | } |
---|
| 4579 | } |
---|
| 4580 | |
---|
| 4581 | /* |
---|
| 4582 | *---------------------------------------------------------------------- |
---|
| 4583 | * |
---|
| 4584 | * DupCmdNameInternalRep -- |
---|
| 4585 | * |
---|
| 4586 | * Initialize the internal representation of an cmdName Tcl_Obj to a |
---|
| 4587 | * copy of the internal representation of an existing cmdName object. |
---|
| 4588 | * |
---|
| 4589 | * Results: |
---|
| 4590 | * None. |
---|
| 4591 | * |
---|
| 4592 | * Side effects: |
---|
| 4593 | * "copyPtr"s internal rep is set to point to the ResolvedCmdName |
---|
| 4594 | * structure corresponding to "srcPtr"s internal rep. Increments the |
---|
| 4595 | * ref count of the ResolvedCmdName structure pointed to by the |
---|
| 4596 | * cmdName's internal representation. |
---|
| 4597 | * |
---|
| 4598 | *---------------------------------------------------------------------- |
---|
| 4599 | */ |
---|
| 4600 | |
---|
| 4601 | static void |
---|
| 4602 | DupCmdNameInternalRep(srcPtr, copyPtr) |
---|
| 4603 | Tcl_Obj *srcPtr; /* Object with internal rep to copy. */ |
---|
| 4604 | register Tcl_Obj *copyPtr; /* Object with internal rep to set. */ |
---|
| 4605 | { |
---|
| 4606 | register ResolvedCmdName *resPtr = |
---|
| 4607 | (ResolvedCmdName *) srcPtr->internalRep.otherValuePtr; |
---|
| 4608 | |
---|
| 4609 | copyPtr->internalRep.twoPtrValue.ptr1 = (VOID *) resPtr; |
---|
| 4610 | copyPtr->internalRep.twoPtrValue.ptr2 = NULL; |
---|
| 4611 | if (resPtr != NULL) { |
---|
| 4612 | resPtr->refCount++; |
---|
| 4613 | } |
---|
| 4614 | copyPtr->typePtr = &tclCmdNameType; |
---|
| 4615 | } |
---|
| 4616 | |
---|
| 4617 | /* |
---|
| 4618 | *---------------------------------------------------------------------- |
---|
| 4619 | * |
---|
| 4620 | * SetCmdNameFromAny -- |
---|
| 4621 | * |
---|
| 4622 | * Generate an cmdName internal form for the Tcl object "objPtr". |
---|
| 4623 | * |
---|
| 4624 | * Results: |
---|
| 4625 | * The return value is a standard Tcl result. The conversion always |
---|
| 4626 | * succeeds and TCL_OK is returned. |
---|
| 4627 | * |
---|
| 4628 | * Side effects: |
---|
| 4629 | * A pointer to a ResolvedCmdName structure that holds a cached pointer |
---|
| 4630 | * to the command with a name that matches objPtr's string rep is |
---|
| 4631 | * stored as objPtr's internal representation. This ResolvedCmdName |
---|
| 4632 | * pointer will be NULL if no matching command was found. The ref count |
---|
| 4633 | * of the cached Command's structure (if any) is also incremented. |
---|
| 4634 | * |
---|
| 4635 | *---------------------------------------------------------------------- |
---|
| 4636 | */ |
---|
| 4637 | |
---|
| 4638 | static int |
---|
| 4639 | SetCmdNameFromAny(interp, objPtr) |
---|
| 4640 | Tcl_Interp *interp; /* Used for error reporting if not NULL. */ |
---|
| 4641 | register Tcl_Obj *objPtr; /* The object to convert. */ |
---|
| 4642 | { |
---|
| 4643 | Interp *iPtr = (Interp *) interp; |
---|
| 4644 | char *name; |
---|
| 4645 | Tcl_Command cmd; |
---|
| 4646 | register Command *cmdPtr; |
---|
| 4647 | Namespace *currNsPtr; |
---|
| 4648 | register ResolvedCmdName *resPtr; |
---|
| 4649 | |
---|
| 4650 | /* |
---|
| 4651 | * Get "objPtr"s string representation. Make it up-to-date if necessary. |
---|
| 4652 | */ |
---|
| 4653 | |
---|
| 4654 | name = objPtr->bytes; |
---|
| 4655 | if (name == NULL) { |
---|
| 4656 | name = Tcl_GetStringFromObj(objPtr, (int *) NULL); |
---|
| 4657 | } |
---|
| 4658 | |
---|
| 4659 | /* |
---|
| 4660 | * Find the Command structure, if any, that describes the command called |
---|
| 4661 | * "name". Build a ResolvedCmdName that holds a cached pointer to this |
---|
| 4662 | * Command, and bump the reference count in the referenced Command |
---|
| 4663 | * structure. A Command structure will not be deleted as long as it is |
---|
| 4664 | * referenced from a CmdName object. |
---|
| 4665 | */ |
---|
| 4666 | |
---|
| 4667 | cmd = Tcl_FindCommand(interp, name, (Tcl_Namespace *) NULL, |
---|
| 4668 | /*flags*/ 0); |
---|
| 4669 | cmdPtr = (Command *) cmd; |
---|
| 4670 | if (cmdPtr != NULL) { |
---|
| 4671 | /* |
---|
| 4672 | * Get the current namespace. |
---|
| 4673 | */ |
---|
| 4674 | |
---|
| 4675 | if (iPtr->varFramePtr != NULL) { |
---|
| 4676 | currNsPtr = iPtr->varFramePtr->nsPtr; |
---|
| 4677 | } else { |
---|
| 4678 | currNsPtr = iPtr->globalNsPtr; |
---|
| 4679 | } |
---|
| 4680 | |
---|
| 4681 | cmdPtr->refCount++; |
---|
| 4682 | resPtr = (ResolvedCmdName *) ckalloc(sizeof(ResolvedCmdName)); |
---|
| 4683 | resPtr->cmdPtr = cmdPtr; |
---|
| 4684 | resPtr->refNsPtr = currNsPtr; |
---|
| 4685 | resPtr->refNsId = currNsPtr->nsId; |
---|
| 4686 | resPtr->refNsCmdEpoch = currNsPtr->cmdRefEpoch; |
---|
| 4687 | resPtr->cmdEpoch = cmdPtr->cmdEpoch; |
---|
| 4688 | resPtr->refCount = 1; |
---|
| 4689 | } else { |
---|
| 4690 | resPtr = NULL; /* no command named "name" was found */ |
---|
| 4691 | } |
---|
| 4692 | |
---|
| 4693 | /* |
---|
| 4694 | * Free the old internalRep before setting the new one. We do this as |
---|
| 4695 | * late as possible to allow the conversion code, in particular |
---|
| 4696 | * GetStringFromObj, to use that old internalRep. If no Command |
---|
| 4697 | * structure was found, leave NULL as the cached value. |
---|
| 4698 | */ |
---|
| 4699 | |
---|
| 4700 | if ((objPtr->typePtr != NULL) |
---|
| 4701 | && (objPtr->typePtr->freeIntRepProc != NULL)) { |
---|
| 4702 | objPtr->typePtr->freeIntRepProc(objPtr); |
---|
| 4703 | } |
---|
| 4704 | |
---|
| 4705 | objPtr->internalRep.twoPtrValue.ptr1 = (VOID *) resPtr; |
---|
| 4706 | objPtr->internalRep.twoPtrValue.ptr2 = NULL; |
---|
| 4707 | objPtr->typePtr = &tclCmdNameType; |
---|
| 4708 | return TCL_OK; |
---|
| 4709 | } |
---|
| 4710 | |
---|
| 4711 | /* |
---|
| 4712 | *---------------------------------------------------------------------- |
---|
| 4713 | * |
---|
| 4714 | * UpdateStringOfCmdName -- |
---|
| 4715 | * |
---|
| 4716 | * Update the string representation for an cmdName object. |
---|
| 4717 | * |
---|
| 4718 | * Results: |
---|
| 4719 | * None. |
---|
| 4720 | * |
---|
| 4721 | * Side effects: |
---|
| 4722 | * Generates a panic. |
---|
| 4723 | * |
---|
| 4724 | *---------------------------------------------------------------------- |
---|
| 4725 | */ |
---|
| 4726 | |
---|
| 4727 | static void |
---|
| 4728 | UpdateStringOfCmdName(objPtr) |
---|
| 4729 | Tcl_Obj *objPtr; /* CmdName obj to update string rep. */ |
---|
| 4730 | { |
---|
| 4731 | /* |
---|
| 4732 | * This procedure is never invoked since the internal representation of |
---|
| 4733 | * a cmdName object is never modified. |
---|
| 4734 | */ |
---|
| 4735 | |
---|
| 4736 | panic("UpdateStringOfCmdName should never be invoked"); |
---|
| 4737 | } |
---|
| 4738 | |
---|
| 4739 | #ifdef TCL_COMPILE_DEBUG |
---|
| 4740 | /* |
---|
| 4741 | *---------------------------------------------------------------------- |
---|
| 4742 | * |
---|
| 4743 | * StringForResultCode -- |
---|
| 4744 | * |
---|
| 4745 | * Procedure that returns a human-readable string representing a |
---|
| 4746 | * Tcl result code such as TCL_ERROR. |
---|
| 4747 | * |
---|
| 4748 | * Results: |
---|
| 4749 | * If the result code is one of the standard Tcl return codes, the |
---|
| 4750 | * result is a string representing that code such as "TCL_ERROR". |
---|
| 4751 | * Otherwise, the result string is that code formatted as a |
---|
| 4752 | * sequence of decimal digit characters. Note that the resulting |
---|
| 4753 | * string must not be modified by the caller. |
---|
| 4754 | * |
---|
| 4755 | * Side effects: |
---|
| 4756 | * None. |
---|
| 4757 | * |
---|
| 4758 | *---------------------------------------------------------------------- |
---|
| 4759 | */ |
---|
| 4760 | |
---|
| 4761 | static char * |
---|
| 4762 | StringForResultCode(result) |
---|
| 4763 | int result; /* The Tcl result code for which to |
---|
| 4764 | * generate a string. */ |
---|
| 4765 | { |
---|
| 4766 | static char buf[20]; |
---|
| 4767 | |
---|
| 4768 | if ((result >= TCL_OK) && (result <= TCL_CONTINUE)) { |
---|
| 4769 | return resultStrings[result]; |
---|
| 4770 | } |
---|
| 4771 | TclFormatInt(buf, result); |
---|
| 4772 | return buf; |
---|
| 4773 | } |
---|
| 4774 | #endif /* TCL_COMPILE_DEBUG */ |
---|