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authordkf <donal.k.fellows@manchester.ac.uk>2014-01-05 16:57:05 (GMT)
committerdkf <donal.k.fellows@manchester.ac.uk>2014-01-05 16:57:05 (GMT)
commitcd913d408822d48fec348677c83d77730bfb64e2 (patch)
tree58d8868a92157def2e54c69c7dfa5291431efdb2
parentce4db33e65cd9509996d33e3ca5fa6343a0f2e4f (diff)
parent92f27b7095220ef6e508c9a0216e0fce97b3d2ae (diff)
downloadtcl-cd913d408822d48fec348677c83d77730bfb64e2.zip
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merge trunk
-rw-r--r--generic/tclCompCmds.c4
-rw-r--r--generic/tclExecute.c40
-rw-r--r--generic/tclProc.c72
3 files changed, 50 insertions, 66 deletions
diff --git a/generic/tclCompCmds.c b/generic/tclCompCmds.c
index 05b6d07..d1d7a80 100644
--- a/generic/tclCompCmds.c
+++ b/generic/tclCompCmds.c
@@ -278,7 +278,7 @@ TclCompileArraySetCmd(
if (isDataValid && !isDataEven) {
PushStringLiteral(envPtr, "list must have an even number of elements");
- PushStringLiteral(envPtr, "-errorCode {TCL ARGUMENT FORMAT}");
+ PushStringLiteral(envPtr, "-errorcode {TCL ARGUMENT FORMAT}");
TclEmitInstInt4(INST_RETURN_IMM, TCL_ERROR, envPtr);
TclEmitInt4( 0, envPtr);
goto done;
@@ -373,7 +373,7 @@ TclCompileArraySetCmd(
offsetFwd = CurrentOffset(envPtr);
TclEmitInstInt1(INST_JUMP_FALSE1, 0, envPtr);
PushStringLiteral(envPtr, "list must have an even number of elements");
- PushStringLiteral(envPtr, "-errorCode {TCL ARGUMENT FORMAT}");
+ PushStringLiteral(envPtr, "-errorcode {TCL ARGUMENT FORMAT}");
TclEmitInstInt4(INST_RETURN_IMM, TCL_ERROR, envPtr);
TclEmitInt4( 0, envPtr);
TclAdjustStackDepth(-1, envPtr);
diff --git a/generic/tclExecute.c b/generic/tclExecute.c
index 65d6e89..f25b588 100644
--- a/generic/tclExecute.c
+++ b/generic/tclExecute.c
@@ -174,28 +174,24 @@ static BuiltinFunc const tclBuiltinFuncTable[] = {
typedef struct TEBCdata {
ByteCode *codePtr; /* Constant until the BC returns */
/* -----------------------------------------*/
- const unsigned char *pc; /* These fields are used on return TO this */
- ptrdiff_t *catchTop; /* this level: they record the state when a */
- int cleanup; /* new codePtr was received for NR */
- Tcl_Obj *auxObjList; /* execution. */
- CmdFrame cmdFrame;
+ ptrdiff_t *catchTop; /* These fields are used on return TO this */
+ Tcl_Obj *auxObjList; /* this level: they record the state when a */
+ CmdFrame cmdFrame; /* new codePtr was received for NR */
+ /* execution. */
void *stack[1]; /* Start of the actual combined catch and obj
* stacks; the struct will be expanded as
* necessary */
} TEBCdata;
#define TEBC_YIELD() \
- do { \
- esPtr->tosPtr = tosPtr; \
- TD->pc = pc; \
- TD->cleanup = cleanup; \
- TclNRAddCallback(interp, TEBCresume, TD, INT2PTR(1), NULL, NULL); \
+ do { \
+ esPtr->tosPtr = tosPtr; \
+ TclNRAddCallback(interp, TEBCresume, \
+ TD, pc, INT2PTR(cleanup), NULL); \
} while (0)
#define TEBC_DATA_DIG() \
do { \
- pc = TD->pc; \
- cleanup = TD->cleanup; \
tosPtr = esPtr->tosPtr; \
} while (0)
@@ -2032,10 +2028,6 @@ TclNRExecuteByteCode(
* sizeof(void *);
int numWords = (size + sizeof(Tcl_Obj *) - 1) / sizeof(Tcl_Obj *);
- if (iPtr->execEnvPtr->rewind) {
- return TCL_ERROR;
- }
-
codePtr->refCount++;
/*
@@ -2054,9 +2046,7 @@ TclNRExecuteByteCode(
esPtr->tosPtr = initTosPtr;
TD->codePtr = codePtr;
- TD->pc = codePtr->codeStart;
TD->catchTop = initCatchTop;
- TD->cleanup = 0;
TD->auxObjList = NULL;
/*
@@ -2086,8 +2076,8 @@ TclNRExecuteByteCode(
* Push the callback for bytecode execution
*/
- TclNRAddCallback(interp, TEBCresume, TD, /*resume*/ INT2PTR(0),
- NULL, NULL);
+ TclNRAddCallback(interp, TEBCresume, TD, /* pc */ NULL,
+ /* cleanup */ INT2PTR(0), NULL);
return TCL_OK;
}
@@ -2150,7 +2140,8 @@ TEBCresume(
Tcl_Obj **tosPtr; /* Cached pointer to top of evaluation
* stack. */
- const unsigned char *pc; /* The current program counter. */
+ const unsigned char *pc = data[1];
+ /* The current program counter. */
unsigned char inst; /* The currently running instruction */
/*
@@ -2158,7 +2149,7 @@ TEBCresume(
* executing an instruction.
*/
- int cleanup = 0;
+ int cleanup = PTR2INT(data[2]);
Tcl_Obj *objResultPtr;
int checkInterp; /* Indicates when a check of interp readyness
* is necessary. Set by CACHE_STACK_INFO() */
@@ -2186,16 +2177,17 @@ TEBCresume(
TEBC_DATA_DIG();
#ifdef TCL_COMPILE_DEBUG
- if (!data[1] && (tclTraceExec >= 2)) {
+ if (!pc && (tclTraceExec >= 2)) {
PrintByteCodeInfo(codePtr);
fprintf(stdout, " Starting stack top=%d\n", (int) CURR_DEPTH);
fflush(stdout);
}
#endif
- if (!data[1]) {
+ if (!pc) {
/* bytecode is starting from scratch */
checkInterp = 0;
+ pc = codePtr->codeStart;
goto cleanup0;
} else {
/* resume from invocation */
diff --git a/generic/tclProc.c b/generic/tclProc.c
index 1314719..ce1c767 100644
--- a/generic/tclProc.c
+++ b/generic/tclProc.c
@@ -1855,9 +1855,39 @@ InterpProcNR2(
}
/*
- * Process the result code.
+ * Free the stack-allocated compiled locals and CallFrame. It is important
+ * to pop the call frame without freeing it first: the compiledLocals
+ * cannot be freed before the frame is popped, as the local variables must
+ * be deleted. But the compiledLocals must be freed first, as they were
+ * allocated later on the stack.
*/
+ if (result != TCL_OK) {
+ goto process;
+ }
+
+ done:
+ if (TCL_DTRACE_PROC_RESULT_ENABLED()) {
+ int l = iPtr->varFramePtr->isProcCallFrame & FRAME_IS_LAMBDA ? 1 : 0;
+ Tcl_Obj *r = Tcl_GetObjResult(interp);
+
+ TCL_DTRACE_PROC_RESULT(l < iPtr->varFramePtr->objc ?
+ TclGetString(iPtr->varFramePtr->objv[l]) : NULL, result,
+ TclGetString(r), r);
+ }
+
+ freePtr = iPtr->framePtr;
+ Tcl_PopCallFrame(interp); /* Pop but do not free. */
+ TclStackFree(interp, freePtr->compiledLocals);
+ /* Free compiledLocals. */
+ TclStackFree(interp, freePtr); /* Free CallFrame. */
+ return result;
+
+ /*
+ * Process any non-TCL_OK result code.
+ */
+
+ process:
switch (result) {
case TCL_RETURN:
/*
@@ -1892,46 +1922,8 @@ InterpProcNR2(
*/
errorProc(interp, procNameObj);
-
- default:
- /*
- * Process other results (OK and non-standard) by doing nothing
- * special, skipping directly to the code afterwards that cleans up
- * associated memory.
- *
- * Non-standard results are processed by passing them through quickly.
- * This means they all work as exceptions, unwinding the stack quickly
- * and neatly. Who knows how well they are handled by third-party code
- * though...
- */
-
- (void) 0; /* do nothing */
- }
-
- if (TCL_DTRACE_PROC_RESULT_ENABLED()) {
- int l = iPtr->varFramePtr->isProcCallFrame & FRAME_IS_LAMBDA ? 1 : 0;
- Tcl_Obj *r = Tcl_GetObjResult(interp);
-
- TCL_DTRACE_PROC_RESULT(l < iPtr->varFramePtr->objc ?
- TclGetString(iPtr->varFramePtr->objv[l]) : NULL, result,
- TclGetString(r), r);
}
-
- /*
- * Free the stack-allocated compiled locals and CallFrame. It is important
- * to pop the call frame without freeing it first: the compiledLocals
- * cannot be freed before the frame is popped, as the local variables must
- * be deleted. But the compiledLocals must be freed first, as they were
- * allocated later on the stack.
- */
-
- freePtr = iPtr->framePtr;
- Tcl_PopCallFrame(interp); /* Pop but do not free. */
- TclStackFree(interp, freePtr->compiledLocals);
- /* Free compiledLocals. */
- TclStackFree(interp, freePtr); /* Free CallFrame. */
-
- return result;
+ goto done;
}
/*