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authordgp <dgp@users.sourceforge.net>2013-05-23 18:32:19 (GMT)
committerdgp <dgp@users.sourceforge.net>2013-05-23 18:32:19 (GMT)
commit749f9c4ee0a50a7cedec339c2b3a69733fedf172 (patch)
tree5e1a029263e1a5f7a750bc5d49ce8a125cf0ed07 /generic/tclCompCmdsGR.c
parent3591223be29f8da7f1f92f8fc8c1ad89dd6bd461 (diff)
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Eliminate code duplication.
Diffstat (limited to 'generic/tclCompCmdsGR.c')
-rw-r--r--generic/tclCompCmdsGR.c305
1 files changed, 0 insertions, 305 deletions
diff --git a/generic/tclCompCmdsGR.c b/generic/tclCompCmdsGR.c
index 26e63e8..2bd43b6 100644
--- a/generic/tclCompCmdsGR.c
+++ b/generic/tclCompCmdsGR.c
@@ -27,71 +27,7 @@ static void CompileReturnInternal(CompileEnv *envPtr,
Tcl_Obj *returnOpts);
static int IndexTailVarIfKnown(Tcl_Interp *interp,
Tcl_Token *varTokenPtr, CompileEnv *envPtr);
-static int PushVarName(Tcl_Interp *interp,
- Tcl_Token *varTokenPtr, CompileEnv *envPtr,
- int flags, int *localIndexPtr,
- int *simpleVarNamePtr, int *isScalarPtr,
- int line, int *clNext);
-/*
- * 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(CompileEnv *envPtr, Tcl_Token *tokenPtr,
- * Tcl_Interp *interp, int word);
- */
-
-#define CompileWord(envPtr, tokenPtr, interp, word) \
- if ((tokenPtr)->type == TCL_TOKEN_SIMPLE_WORD) { \
- TclEmitPush(TclRegisterNewLiteral((envPtr), (tokenPtr)[1].start, \
- (tokenPtr)[1].size), (envPtr)); \
- } else { \
- envPtr->line = mapPtr->loc[eclIndex].line[word]; \
- envPtr->clNext = mapPtr->loc[eclIndex].next[word]; \
- TclCompileTokens((interp), (tokenPtr)+1, (tokenPtr)->numComponents, \
- (envPtr)); \
- }
-
-/*
- * TIP #280: Remember the per-word line information of the current command. An
- * index is used instead of a pointer as recursive compilation may reallocate,
- * i.e. move, the array. This is also the reason to save the nuloc now, it may
- * change during the course of the function.
- *
- * Macro to encapsulate the variable definition and setup.
- */
-
-#define DefineLineInformation \
- ExtCmdLoc *mapPtr = envPtr->extCmdMapPtr; \
- int eclIndex = mapPtr->nuloc - 1
-
-#define SetLineInformation(word) \
- envPtr->line = mapPtr->loc[eclIndex].line[(word)]; \
- envPtr->clNext = mapPtr->loc[eclIndex].next[(word)]
-
-#define PushVarNameWord(i,v,e,f,l,s,sc,word) \
- PushVarName(i,v,e,f,l,s,sc, \
- mapPtr->loc[eclIndex].line[(word)], \
- mapPtr->loc[eclIndex].next[(word)])
-
-/*
- * Often want to issue one of two versions of an instruction based on whether
- * the argument will fit in a single byte or not. This makes it much clearer.
- */
-
-#define Emit14Inst(nm,idx,envPtr) \
- if (idx <= 255) { \
- TclEmitInstInt1(nm##1,idx,envPtr); \
- } else { \
- TclEmitInstInt4(nm##4,idx,envPtr); \
- }
-
-/*
- * Flags bits used by PushVarName.
- */
-
-#define TCL_NO_LARGE_INDEX 1 /* Do not return localIndex value > 255 */
-#define TCL_NO_ELEMENT 2 /* Do not push the array element. */
/*
*----------------------------------------------------------------------
@@ -2988,247 +2924,6 @@ TclCompileObjectSelfCmd(
}
/*
- *----------------------------------------------------------------------
- *
- * PushVarName --
- *
- * Procedure used in the compiling where pushing a variable name is
- * necessary (append, lappend, set).
- *
- * Results:
- * Returns TCL_OK for a successful compile. Returns TCL_ERROR to defer
- * evaluation to runtime.
- *
- * Side effects:
- * Instructions are added to envPtr to execute the "set" command at
- * runtime.
- *
- *----------------------------------------------------------------------
- */
-
-static int
-PushVarName(
- Tcl_Interp *interp, /* Used for error reporting. */
- Tcl_Token *varTokenPtr, /* Points to a variable token. */
- CompileEnv *envPtr, /* Holds resulting instructions. */
- int flags, /* TCL_NO_LARGE_INDEX | TCL_NO_ELEMENT. */
- int *localIndexPtr, /* Must not be NULL. */
- int *simpleVarNamePtr, /* Must not be NULL. */
- int *isScalarPtr, /* Must not be NULL. */
- int line, /* Line the token starts on. */
- int *clNext) /* Reference to offset of next hidden cont.
- * line. */
-{
- register const char *p;
- const char *name, *elName;
- register int i, n;
- Tcl_Token *elemTokenPtr = NULL;
- int nameChars, elNameChars, simpleVarName, localIndex;
- int elemTokenCount = 0, allocedTokens = 0, removedParen = 0;
-
- /*
- * Decide if we can use a frame slot for the var/array name or if we need
- * to emit code to compute and push the name at runtime. We use a frame
- * slot (entry in the array of local vars) if we are compiling a procedure
- * body and if the name is simple text that does not include namespace
- * qualifiers.
- */
-
- simpleVarName = 0;
- name = elName = NULL;
- nameChars = elNameChars = 0;
- localIndex = -1;
-
- /*
- * Check not only that the type is TCL_TOKEN_SIMPLE_WORD, but whether
- * curly braces surround the variable name. This really matters for array
- * elements to handle things like
- * set {x($foo)} 5
- * which raises an undefined var error if we are not careful here.
- */
-
- if ((varTokenPtr->type == TCL_TOKEN_SIMPLE_WORD) &&
- (varTokenPtr->start[0] != '{')) {
- /*
- * A simple variable name. Divide it up into "name" and "elName"
- * strings. If it is not a local variable, look it up at runtime.
- */
-
- simpleVarName = 1;
-
- name = varTokenPtr[1].start;
- nameChars = varTokenPtr[1].size;
- if (name[nameChars-1] == ')') {
- /*
- * last char is ')' => potential array reference.
- */
-
- for (i=0,p=name ; i<nameChars ; i++,p++) {
- if (*p == '(') {
- elName = p + 1;
- elNameChars = nameChars - i - 2;
- nameChars = i;
- break;
- }
- }
-
- if ((elName != NULL) && elNameChars) {
- /*
- * An array element, the element name is a simple string:
- * assemble the corresponding token.
- */
-
- elemTokenPtr = TclStackAlloc(interp, sizeof(Tcl_Token));
- allocedTokens = 1;
- elemTokenPtr->type = TCL_TOKEN_TEXT;
- elemTokenPtr->start = elName;
- elemTokenPtr->size = elNameChars;
- elemTokenPtr->numComponents = 0;
- elemTokenCount = 1;
- }
- }
- } else if (((n = varTokenPtr->numComponents) > 1)
- && (varTokenPtr[1].type == TCL_TOKEN_TEXT)
- && (varTokenPtr[n].type == TCL_TOKEN_TEXT)
- && (varTokenPtr[n].start[varTokenPtr[n].size - 1] == ')')) {
- /*
- * Check for parentheses inside first token.
- */
-
- simpleVarName = 0;
- for (i = 0, p = varTokenPtr[1].start;
- i < varTokenPtr[1].size; i++, p++) {
- if (*p == '(') {
- simpleVarName = 1;
- break;
- }
- }
- if (simpleVarName) {
- int remainingChars;
-
- /*
- * Check the last token: if it is just ')', do not count it.
- * Otherwise, remove the ')' and flag so that it is restored at
- * the end.
- */
-
- if (varTokenPtr[n].size == 1) {
- n--;
- } else {
- varTokenPtr[n].size--;
- removedParen = n;
- }
-
- name = varTokenPtr[1].start;
- nameChars = p - varTokenPtr[1].start;
- elName = p + 1;
- remainingChars = (varTokenPtr[2].start - p) - 1;
- elNameChars = (varTokenPtr[n].start-p) + varTokenPtr[n].size - 2;
-
- if (remainingChars) {
- /*
- * Make a first token with the extra characters in the first
- * token.
- */
-
- elemTokenPtr = TclStackAlloc(interp, n * sizeof(Tcl_Token));
- allocedTokens = 1;
- elemTokenPtr->type = TCL_TOKEN_TEXT;
- elemTokenPtr->start = elName;
- elemTokenPtr->size = remainingChars;
- elemTokenPtr->numComponents = 0;
- elemTokenCount = n;
-
- /*
- * Copy the remaining tokens.
- */
-
- memcpy(elemTokenPtr+1, varTokenPtr+2,
- (n-1) * sizeof(Tcl_Token));
- } else {
- /*
- * Use the already available tokens.
- */
-
- elemTokenPtr = &varTokenPtr[2];
- elemTokenCount = n - 1;
- }
- }
- }
-
- if (simpleVarName) {
- /*
- * See whether name has any namespace separators (::'s).
- */
-
- int hasNsQualifiers = 0;
-
- for (i = 0, p = name; i < nameChars; i++, p++) {
- if ((*p == ':') && ((i+1) < nameChars) && (*(p+1) == ':')) {
- hasNsQualifiers = 1;
- break;
- }
- }
-
- /*
- * Look up the var name's index in the array of local vars in the proc
- * frame. If retrieving the var's value and it doesn't already exist,
- * push its name and look it up at runtime.
- */
-
- if (!hasNsQualifiers) {
- localIndex = TclFindCompiledLocal(name, nameChars,
- 1, envPtr);
- if ((flags & TCL_NO_LARGE_INDEX) && (localIndex > 255)) {
- /*
- * We'll push the name.
- */
-
- localIndex = -1;
- }
- }
- if (localIndex < 0) {
- PushLiteral(envPtr, name, nameChars);
- }
-
- /*
- * Compile the element script, if any, and only if not inhibited. [Bug
- * 3600328]
- */
-
- if (elName != NULL && !(flags & TCL_NO_ELEMENT)) {
- if (elNameChars) {
- envPtr->line = line;
- envPtr->clNext = clNext;
- TclCompileTokens(interp, elemTokenPtr, elemTokenCount,
- envPtr);
- } else {
- PushLiteral(envPtr, "", 0);
- }
- }
- } else {
- /*
- * The var name isn't simple: compile and push it.
- */
-
- envPtr->line = line;
- envPtr->clNext = clNext;
- CompileTokens(envPtr, varTokenPtr, interp);
- }
-
- if (removedParen) {
- varTokenPtr[removedParen].size++;
- }
- if (allocedTokens) {
- TclStackFree(interp, elemTokenPtr);
- }
- *localIndexPtr = localIndex;
- *simpleVarNamePtr = simpleVarName;
- *isScalarPtr = (elName == NULL);
- return TCL_OK;
-}
-
-/*
* Local Variables:
* mode: c
* c-basic-offset: 4