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-rw-r--r--generic/tclCompCmds.c123
1 files changed, 32 insertions, 91 deletions
diff --git a/generic/tclCompCmds.c b/generic/tclCompCmds.c
index 70c2570..97e1ff4 100644
--- a/generic/tclCompCmds.c
+++ b/generic/tclCompCmds.c
@@ -11,13 +11,31 @@
* See the file "license.terms" for information on usage and redistribution
* of this file, and for a DISCLAIMER OF ALL WARRANTIES.
*
- * RCS: @(#) $Id: tclCompCmds.c,v 1.65 2005/05/05 15:32:20 dgp Exp $
+ * RCS: @(#) $Id: tclCompCmds.c,v 1.66 2005/05/05 17:21:03 dgp Exp $
*/
#include "tclInt.h"
#include "tclCompile.h"
/*
+ * Macro that encapsulates an efficiency trick that avoids a function
+ * call for the simplest of compiles. The ANSI C "prototype" for this
+ * macro is:
+ *
+ * static void CompileWord _ANSI_ARGS((CompileEnv *envPtr,
+ * Tcl_Token *tokenPtr, Tcl_Inter *interp));
+ */
+
+#define CompileWord(envPtr, tokenPtr, interp) \
+ if ((tokenPtr)->type == TCL_TOKEN_SIMPLE_WORD) { \
+ TclEmitPush(TclRegisterNewLiteral((envPtr), (tokenPtr)[1].start, \
+ (tokenPtr)[1].size), (envPtr)); \
+ } else { \
+ TclCompileTokens((interp), (tokenPtr)+1, (tokenPtr)->numComponents, \
+ (envPtr)); \
+ }
+
+/*
* Prototypes for procedures defined later in this file:
*/
@@ -109,13 +127,7 @@ TclCompileAppendCmd(interp, parsePtr, envPtr)
if (numWords > 2) {
valueTokenPtr = varTokenPtr + (varTokenPtr->numComponents + 1);
- if (valueTokenPtr->type == TCL_TOKEN_SIMPLE_WORD) {
- TclEmitPush(TclRegisterNewLiteral(envPtr,
- valueTokenPtr[1].start, valueTokenPtr[1].size), envPtr);
- } else {
- TclCompileTokens(interp, valueTokenPtr+1,
- valueTokenPtr->numComponents, envPtr);
- }
+ CompileWord(envPtr, valueTokenPtr, interp);
}
/*
@@ -247,6 +259,7 @@ TclCompileCatchCmd(interp, parsePtr, envPtr)
+ (parsePtr->tokenPtr->numComponents + 1);
if (parsePtr->numWords == 3) {
nameTokenPtr = cmdTokenPtr + (cmdTokenPtr->numComponents + 1);
+ /* DGP */
if (nameTokenPtr->type == TCL_TOKEN_SIMPLE_WORD) {
name = nameTokenPtr[1].start;
nameChars = nameTokenPtr[1].size;
@@ -1515,13 +1528,7 @@ TclCompileLappendCmd(interp, parsePtr, envPtr)
if (numWords > 2) {
valueTokenPtr = varTokenPtr + (varTokenPtr->numComponents + 1);
- if (valueTokenPtr->type == TCL_TOKEN_SIMPLE_WORD) {
- TclEmitPush(TclRegisterNewLiteral(envPtr,
- valueTokenPtr[1].start, valueTokenPtr[1].size), envPtr);
- } else {
- TclCompileTokens(interp, valueTokenPtr+1,
- valueTokenPtr->numComponents, envPtr);
- }
+ CompileWord(envPtr, valueTokenPtr, interp);
}
/*
@@ -1601,12 +1608,7 @@ TclCompileLassignCmd(interp, parsePtr, envPtr)
* Generate code to push list being taken apart by [lassign].
*/
tokenPtr = parsePtr->tokenPtr + (parsePtr->tokenPtr->numComponents + 1);
- if (tokenPtr->type == TCL_TOKEN_SIMPLE_WORD) {
- TclEmitPush(TclRegisterNewLiteral(envPtr,
- tokenPtr[1].start, tokenPtr[1].size), envPtr);
- } else {
- TclCompileTokens(interp, tokenPtr+1, tokenPtr->numComponents, envPtr);
- }
+ CompileWord(envPtr, tokenPtr, interp);
/*
* Generate code to assign values from the list to variables
@@ -1716,14 +1718,7 @@ TclCompileLindexCmd(interp, parsePtr, envPtr)
*/
for (i=1 ; i<numWords ; i++) {
- if (varTokenPtr->type == TCL_TOKEN_SIMPLE_WORD) {
- TclEmitPush(
- TclRegisterNewLiteral(envPtr, varTokenPtr[1].start,
- varTokenPtr[1].size), envPtr);
- } else {
- TclCompileTokens(interp, varTokenPtr+1,
- varTokenPtr->numComponents, envPtr);
- }
+ CompileWord(envPtr, varTokenPtr, interp);
varTokenPtr = varTokenPtr + (varTokenPtr->numComponents + 1);
}
@@ -1791,13 +1786,7 @@ TclCompileListCmd(interp, parsePtr, envPtr)
valueTokenPtr = parsePtr->tokenPtr
+ (parsePtr->tokenPtr->numComponents + 1);
for (i = 1; i < numWords; i++) {
- if (valueTokenPtr->type == TCL_TOKEN_SIMPLE_WORD) {
- TclEmitPush(TclRegisterNewLiteral(envPtr,
- valueTokenPtr[1].start, valueTokenPtr[1].size), envPtr);
- } else {
- TclCompileTokens(interp, valueTokenPtr+1,
- valueTokenPtr->numComponents, envPtr);
- }
+ CompileWord(envPtr, valueTokenPtr, interp);
valueTokenPtr = valueTokenPtr + (valueTokenPtr->numComponents + 1);
}
TclEmitInstInt4(INST_LIST, numWords - 1, envPtr);
@@ -1839,17 +1828,7 @@ TclCompileLlengthCmd(interp, parsePtr, envPtr)
varTokenPtr = parsePtr->tokenPtr
+ (parsePtr->tokenPtr->numComponents + 1);
- if (varTokenPtr->type == TCL_TOKEN_SIMPLE_WORD) {
- /*
- * We could simply count the number of elements here and push
- * that value, but that is too rare a case to waste the code space.
- */
- TclEmitPush(TclRegisterNewLiteral(envPtr, varTokenPtr[1].start,
- varTokenPtr[1].size), envPtr);
- } else {
- TclCompileTokens(interp, varTokenPtr+1,
- varTokenPtr->numComponents, envPtr);
- }
+ CompileWord(envPtr, varTokenPtr, interp);
TclEmitOpcode(INST_LIST_LENGTH, envPtr);
return TCL_OK;
}
@@ -1939,13 +1918,7 @@ TclCompileLsetCmd(interp, parsePtr, envPtr)
/* Push an arg */
- if (varTokenPtr->type == TCL_TOKEN_SIMPLE_WORD) {
- TclEmitPush(TclRegisterNewLiteral(envPtr, varTokenPtr[1].start,
- varTokenPtr[1].size), envPtr);
- } else {
- TclCompileTokens(interp, varTokenPtr+1,
- varTokenPtr->numComponents, envPtr);
- }
+ CompileWord(envPtr, varTokenPtr, interp);
}
/*
@@ -2208,13 +2181,7 @@ TclCompileRegexpCmd(interp, parsePtr, envPtr)
* Push the string arg
*/
varTokenPtr = varTokenPtr + (varTokenPtr->numComponents + 1);
- if (varTokenPtr->type == TCL_TOKEN_SIMPLE_WORD) {
- TclEmitPush(TclRegisterNewLiteral(envPtr,
- varTokenPtr[1].start, varTokenPtr[1].size), envPtr);
- } else {
- TclCompileTokens(interp, varTokenPtr+1,
- varTokenPtr->numComponents, envPtr);
- }
+ CompileWord(envPtr, varTokenPtr, interp);
if (anchorLeft && anchorRight && !nocase) {
TclEmitOpcode(INST_STR_EQ, envPtr);
@@ -2312,15 +2279,7 @@ cleanup:
*/
if (explicitResult) {
- if (wordTokenPtr->type == TCL_TOKEN_SIMPLE_WORD) {
- /* Simple word: compile quickly to a simple push */
- TclEmitPush(TclRegisterNewLiteral(envPtr, wordTokenPtr[1].start,
- wordTokenPtr[1].size), envPtr);
- } else {
- /* More complex tokens get compiled */
- TclCompileTokens(interp, wordTokenPtr+1,
- wordTokenPtr->numComponents, envPtr);
- }
+ CompileWord(envPtr, wordTokenPtr, interp);
} else {
/* No explict result argument, so default result is empty string */
TclEmitPush(TclRegisterNewLiteral(envPtr, "", 0), envPtr);
@@ -2421,13 +2380,7 @@ TclCompileSetCmd(interp, parsePtr, envPtr)
if (isAssignment) {
valueTokenPtr = varTokenPtr + (varTokenPtr->numComponents + 1);
- if (valueTokenPtr->type == TCL_TOKEN_SIMPLE_WORD) {
- TclEmitPush(TclRegisterNewLiteral(envPtr, valueTokenPtr[1].start,
- valueTokenPtr[1].size), envPtr);
- } else {
- TclCompileTokens(interp, valueTokenPtr+1,
- valueTokenPtr->numComponents, envPtr);
- }
+ CompileWord(envPtr, valueTokenPtr, interp);
}
/*
@@ -2576,13 +2529,7 @@ TclCompileStringCmd(interp, parsePtr, envPtr)
*/
for (i = 0; i < 2; i++) {
- if (varTokenPtr->type == TCL_TOKEN_SIMPLE_WORD) {
- TclEmitPush(TclRegisterNewLiteral(envPtr,
- varTokenPtr[1].start, varTokenPtr[1].size), envPtr);
- } else {
- TclCompileTokens(interp, varTokenPtr+1,
- varTokenPtr->numComponents, envPtr);
- }
+ CompileWord(envPtr, varTokenPtr, interp);
varTokenPtr = varTokenPtr + (varTokenPtr->numComponents + 1);
}
@@ -2603,13 +2550,7 @@ TclCompileStringCmd(interp, parsePtr, envPtr)
*/
for (i = 0; i < 2; i++) {
- if (varTokenPtr->type == TCL_TOKEN_SIMPLE_WORD) {
- TclEmitPush(TclRegisterNewLiteral(envPtr,
- varTokenPtr[1].start, varTokenPtr[1].size), envPtr);
- } else {
- TclCompileTokens(interp, varTokenPtr+1,
- varTokenPtr->numComponents, envPtr);
- }
+ CompileWord(envPtr, varTokenPtr, interp);
varTokenPtr = varTokenPtr + (varTokenPtr->numComponents + 1);
}
generated by cgit v0.12 at 2024-12-27 15:43:42 (GMT)