From 69eed829d100f7dcbe449ef6854ae7d24f72179c Mon Sep 17 00:00:00 2001 From: dgp Date: Tue, 5 Mar 2013 22:13:30 +0000 Subject: New internal routine TclFetchLiteral() for better CompileEnv encapsulation. --- generic/tclCompCmds.c | 3 +-- generic/tclCompExpr.c | 13 +++++-------- generic/tclCompile.c | 18 +++++++++--------- generic/tclCompile.h | 1 + generic/tclEnsemble.c | 6 +++--- generic/tclLiteral.c | 27 +++++++++++++++++++++++++++ 6 files changed, 46 insertions(+), 22 deletions(-) diff --git a/generic/tclCompCmds.c b/generic/tclCompCmds.c index 4751455..40348fa 100644 --- a/generic/tclCompCmds.c +++ b/generic/tclCompCmds.c @@ -349,8 +349,7 @@ TclCompileArraySetCmd( Tcl_GetCommandFullName(interp, (Tcl_Command) cmdPtr, objPtr); bytes = Tcl_GetStringFromObj(objPtr, &length); cmdLit = TclRegisterNewCmdLiteral(envPtr, bytes, length); - TclSetCmdNameObj(interp, envPtr->literalArrayPtr[cmdLit].objPtr, - cmdPtr); + TclSetCmdNameObj(interp, TclFetchLiteral(envPtr, cmdLit), cmdPtr); TclEmitPush(cmdLit, envPtr); TclDecrRefCount(objPtr); if (localIndex >= 0) { diff --git a/generic/tclCompExpr.c b/generic/tclCompExpr.c index 346f446..3597abe 100644 --- a/generic/tclCompExpr.c +++ b/generic/tclCompExpr.c @@ -2445,14 +2445,11 @@ CompileExprTree( Tcl_Obj *literal = *litObjv; if (optimize) { - int length, index; + int length; const char *bytes = TclGetStringFromObj(literal, &length); - LiteralEntry *lePtr; - Tcl_Obj *objPtr; - - index = TclRegisterNewLiteral(envPtr, bytes, length); - lePtr = envPtr->literalArrayPtr + index; - objPtr = lePtr->objPtr; + int index = TclRegisterNewLiteral(envPtr, bytes, length); + Tcl_Obj *objPtr = TclFetchLiteral(envPtr, index); + if ((objPtr->typePtr == NULL) && (literal->typePtr != NULL)) { /* * Would like to do this: @@ -2511,7 +2508,7 @@ CompileExprTree( index = TclRegisterNewLiteral(envPtr, objPtr->bytes, objPtr->length); - tableValue = envPtr->literalArrayPtr[index].objPtr; + tableValue = TclFetchLiteral(envPtr, index); if ((tableValue->typePtr == NULL) && (objPtr->typePtr != NULL)) { /* diff --git a/generic/tclCompile.c b/generic/tclCompile.c index cf1e25e..5427759 100644 --- a/generic/tclCompile.c +++ b/generic/tclCompile.c @@ -1896,8 +1896,7 @@ TclCompileScript( tokenPtr[1].start, tokenPtr[1].size); if (cmdPtr != NULL) { TclSetCmdNameObj(interp, - envPtr->literalArrayPtr[objIndex].objPtr, - cmdPtr); + TclFetchLiteral(envPtr, objIndex), cmdPtr); } } else { /* @@ -1914,7 +1913,7 @@ TclCompileScript( if (envPtr->clNext) { TclContinuationsEnterDerived( - envPtr->literalArrayPtr[objIndex].objPtr, + TclFetchLiteral(envPtr, objIndex), tokenPtr[1].start - envPtr->source, eclPtr->loc[wlineat].next[wordIdx]); } @@ -2223,9 +2222,8 @@ TclCompileTokens( Tcl_DStringFree(&textBuffer); if (numCL) { - TclContinuationsEnter( - envPtr->literalArrayPtr[literal].objPtr, numCL, - clPosition); + TclContinuationsEnter(TclFetchLiteral(envPtr, literal), + numCL, clPosition); } numCL = 0; } @@ -2271,7 +2269,7 @@ TclCompileTokens( TclEmitPush(literal, envPtr); numObjsToConcat++; if (numCL) { - TclContinuationsEnter(envPtr->literalArrayPtr[literal].objPtr, + TclContinuationsEnter(TclFetchLiteral(envPtr, literal), numCL, clPosition); } numCL = 0; @@ -2579,7 +2577,9 @@ TclInitByteCodeObj( p += TCL_ALIGN(codeBytes); /* align object array */ codePtr->objArrayPtr = (Tcl_Obj **) p; for (i = 0; i < numLitObjects; i++) { - if (objPtr == envPtr->literalArrayPtr[i].objPtr) { + Tcl_Obj *fetched = TclFetchLiteral(envPtr, i); + + if (objPtr == fetched) { /* * Prevent circular reference where the bytecode intrep of * a value contains a literal which is that same value. @@ -2598,7 +2598,7 @@ TclInitByteCodeObj( Tcl_IncrRefCount(codePtr->objArrayPtr[i]); Tcl_DecrRefCount(objPtr); } else { - codePtr->objArrayPtr[i] = envPtr->literalArrayPtr[i].objPtr; + codePtr->objArrayPtr[i] = fetched; } } diff --git a/generic/tclCompile.h b/generic/tclCompile.h index 10282ba..79497d2 100644 --- a/generic/tclCompile.h +++ b/generic/tclCompile.h @@ -954,6 +954,7 @@ MODULE_SCOPE ExceptionRange * TclGetExceptionRangeForPc(unsigned char *pc, MODULE_SCOPE void TclExpandJumpFixupArray(JumpFixupArray *fixupArrayPtr); MODULE_SCOPE int TclNRExecuteByteCode(Tcl_Interp *interp, ByteCode *codePtr); +MODULE_SCOPE Tcl_Obj * TclFetchLiteral(CompileEnv *envPtr, unsigned int index); MODULE_SCOPE void TclFinalizeAuxDataTypeTable(void); MODULE_SCOPE int TclFindCompiledLocal(const char *name, int nameChars, int create, CompileEnv *envPtr); diff --git a/generic/tclEnsemble.c b/generic/tclEnsemble.c index bf9dac2..813e056 100644 --- a/generic/tclEnsemble.c +++ b/generic/tclEnsemble.c @@ -3167,7 +3167,7 @@ CompileToInvokedCommand( if (envPtr->clNext) { TclContinuationsEnterDerived( - envPtr->literalArrayPtr[literal].objPtr, + TclFetchLiteral(envPtr, literal), tokPtr[1].start - envPtr->source, mapPtr->loc[eclIndex].next[i]); } @@ -3190,7 +3190,7 @@ CompileToInvokedCommand( Tcl_GetCommandFullName(interp, (Tcl_Command) cmdPtr, objPtr); bytes = Tcl_GetStringFromObj(objPtr, &length); cmdLit = TclRegisterNewCmdLiteral(envPtr, bytes, length); - TclSetCmdNameObj(interp, envPtr->literalArrayPtr[cmdLit].objPtr, cmdPtr); + TclSetCmdNameObj(interp, TclFetchLiteral(envPtr, cmdLit), cmdPtr); TclEmitPush(cmdLit, envPtr); TclDecrRefCount(objPtr); @@ -3239,7 +3239,7 @@ CompileBasicNArgCommand( Tcl_GetCommandFullName(interp, (Tcl_Command) cmdPtr, objPtr); bytes = Tcl_GetStringFromObj(objPtr, &length); literal = TclRegisterNewCmdLiteral(envPtr, bytes, length); - TclSetCmdNameObj(interp, envPtr->literalArrayPtr[literal].objPtr, cmdPtr); + TclSetCmdNameObj(interp, TclFetchLiteral(envPtr, literal), cmdPtr); TclEmitPush(literal, envPtr); TclDecrRefCount(objPtr); diff --git a/generic/tclLiteral.c b/generic/tclLiteral.c index bd5fe73..e2ee9b4 100644 --- a/generic/tclLiteral.c +++ b/generic/tclLiteral.c @@ -305,6 +305,33 @@ TclCreateLiteral( /* *---------------------------------------------------------------------- * + * TclFetchLiteral -- + * + * Fetch from a CompileEnv the literal value identified by an index + * value, as returned by a prior call to TclRegisterLiteral(). + * + * Results: + * The literal value, or NULL if the index is out of range. + * + *---------------------------------------------------------------------- + */ + +Tcl_Obj * +TclFetchLiteral( + CompileEnv *envPtr, /* Points to the CompileEnv from which to + * fetch the registered literal value. */ + unsigned int index) /* Index of the desired literal, as returned + * by prior call to TclRegisterLiteral() */ +{ + if (index >= envPtr->literalArrayNext) { + return NULL; + } + return envPtr->literalArrayPtr[index].objPtr; +} + +/* + *---------------------------------------------------------------------- + * * TclRegisterLiteral -- * * Find, or if necessary create, an object in a CompileEnv literal array -- cgit v0.12