summaryrefslogtreecommitdiffstats
path: root/generic/tclExecute.c
diff options
context:
space:
mode:
Diffstat (limited to 'generic/tclExecute.c')
-rw-r--r--generic/tclExecute.c197
1 files changed, 167 insertions, 30 deletions
diff --git a/generic/tclExecute.c b/generic/tclExecute.c
index f25b588..5b42124 100644
--- a/generic/tclExecute.c
+++ b/generic/tclExecute.c
@@ -800,7 +800,8 @@ static Tcl_Obj ** StackAllocWords(Tcl_Interp *interp, int numWords);
static Tcl_Obj ** StackReallocWords(Tcl_Interp *interp, int numWords);
static Tcl_NRPostProc CopyCallback;
static Tcl_NRPostProc ExprObjCallback;
-
+static Tcl_NRPostProc FinalizeOONext;
+static Tcl_NRPostProc FinalizeOONextFilter;
static Tcl_NRPostProc TEBCresume;
/*
@@ -1996,6 +1997,41 @@ TclIncrObj(
/*
*----------------------------------------------------------------------
*
+ * ArgumentBCEnter --
+ *
+ * This is a helper for TclNRExecuteByteCode/TEBCresume that encapsulates
+ * a code sequence that is fairly common in the code but *not* commonly
+ * called.
+ *
+ * Results:
+ * None
+ *
+ * Side effects:
+ * May register information about the bytecode in the command frame.
+ *
+ *----------------------------------------------------------------------
+ */
+
+static void
+ArgumentBCEnter(
+ Tcl_Interp *interp,
+ ByteCode *codePtr,
+ TEBCdata *tdPtr,
+ const unsigned char *pc,
+ int objc,
+ Tcl_Obj **objv)
+{
+ int cmd;
+
+ if (GetSrcInfoForPc(pc, codePtr, NULL, NULL, &cmd)) {
+ TclArgumentBCEnter(interp, objv, objc, codePtr, &tdPtr->cmdFrame, cmd,
+ pc - codePtr->codeStart);
+ }
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
* TclNRExecuteByteCode --
*
* This procedure executes the instructions of a ByteCode structure. It
@@ -2205,7 +2241,7 @@ TEBCresume(
}
iPtr->cmdFramePtr = bcFramePtr->nextPtr;
if (iPtr->flags & INTERP_DEBUG_FRAME) {
- TclArgumentBCRelease((Tcl_Interp *) iPtr, bcFramePtr);
+ TclArgumentBCRelease(interp, bcFramePtr);
}
if (codePtr->flags & TCL_BYTECODE_RECOMPILE) {
iPtr->flags |= ERR_ALREADY_LOGGED;
@@ -2487,11 +2523,7 @@ TEBCresume(
iPtr->cmdFramePtr = bcFramePtr;
if (iPtr->flags & INTERP_DEBUG_FRAME) {
- int cmd;
- if (GetSrcInfoForPc(pc, codePtr, NULL, NULL, &cmd)) {
- TclArgumentBCEnter((Tcl_Interp *) iPtr, objv, objc,
- codePtr, bcFramePtr, cmd, pc - codePtr->codeStart);
- }
+ ArgumentBCEnter(interp, codePtr, TD, pc, objc, objv);
}
pc++;
@@ -2961,11 +2993,7 @@ TEBCresume(
iPtr->cmdFramePtr = bcFramePtr;
if (iPtr->flags & INTERP_DEBUG_FRAME) {
- int cmd;
- if (GetSrcInfoForPc(pc, codePtr, NULL, NULL, &cmd)) {
- TclArgumentBCEnter((Tcl_Interp *) iPtr, objv, objc,
- codePtr, bcFramePtr, cmd, pc - codePtr->codeStart);
- }
+ ArgumentBCEnter(interp, codePtr, TD, pc, objc, objv);
}
DECACHE_STACK_INFO();
@@ -3110,11 +3138,7 @@ TEBCresume(
bcFramePtr->data.tebc.pc = (char *) pc;
iPtr->cmdFramePtr = bcFramePtr;
if (iPtr->flags & INTERP_DEBUG_FRAME) {
- int cmd;
- if (GetSrcInfoForPc(pc, codePtr, NULL, NULL, &cmd)) {
- TclArgumentBCEnter((Tcl_Interp *) iPtr, objv, objc,
- codePtr, bcFramePtr, cmd, pc - codePtr->codeStart);
- }
+ ArgumentBCEnter(interp, codePtr, TD, pc, objc, objv);
}
iPtr->ensembleRewrite.sourceObjs = objv;
iPtr->ensembleRewrite.numRemovedObjs = opnd;
@@ -4512,6 +4536,7 @@ TEBCresume(
*/
{
+ Object *oPtr;
CallFrame *framePtr;
CallContext *contextPtr;
@@ -4555,15 +4580,58 @@ TEBCresume(
}
contextPtr = framePtr->clientData;
+ if (contextPtr->index+1 >= contextPtr->callPtr->numChain) {
+ /*
+ * We're at the end of the chain; generate an error message unless
+ * the interpreter is being torn down, in which case we might be
+ * getting here because of methods/destructors doing a [next] (or
+ * equivalent) unexpectedly.
+ */
+
+ const char *methodType;
+
+ if (contextPtr->callPtr->flags & CONSTRUCTOR) {
+ methodType = "constructor";
+ } else if (contextPtr->callPtr->flags & DESTRUCTOR) {
+ methodType = "destructor";
+ } else {
+ methodType = "method";
+ }
+
+ TRACE_APPEND(("ERROR: no TclOO next impl\n"));
+ Tcl_SetObjResult(interp, Tcl_ObjPrintf(
+ "no next %s implementation", methodType));
+ DECACHE_STACK_INFO();
+ Tcl_SetErrorCode(interp, "TCL", "OO", "NOTHING_NEXT", NULL);
+ CACHE_STACK_INFO();
+ goto gotError;
+ }
+
+#ifdef TCL_COMPILE_DEBUG
+ if (tclTraceExec >= 2) {
+ int i;
+
+ if (traceInstructions) {
+ strncpy(cmdNameBuf, TclGetString(objv[0]), 20);
+ TRACE(("next_in_chain "));
+ } else {
+ fprintf(stdout, "%d: (%u) invoking next_in_chain ",
+ iPtr->numLevels, (unsigned)(pc - codePtr->codeStart));
+ }
+ for (i = 0; i < objc; i++) {
+ TclPrintObject(stdout, objv[i], 15);
+ fprintf(stdout, " ");
+ }
+ fprintf(stdout, "\n");
+ fflush(stdout);
+ }
+#endif /*TCL_COMPILE_DEBUG*/
+
bcFramePtr->data.tebc.pc = (char *) pc;
iPtr->cmdFramePtr = bcFramePtr;
if (iPtr->flags & INTERP_DEBUG_FRAME) {
- int cmd;
- if (GetSrcInfoForPc(pc, codePtr, NULL, NULL, &cmd)) {
- TclArgumentBCEnter((Tcl_Interp *) iPtr, objv, objc,
- codePtr, bcFramePtr, cmd, pc - codePtr->codeStart);
- }
+ ArgumentBCEnter(interp, codePtr, TD, pc, objc, objv);
}
pcAdjustment = 2;
@@ -4572,14 +4640,31 @@ TEBCresume(
iPtr->varFramePtr = framePtr->callerVarPtr;
pc += pcAdjustment;
TEBC_YIELD();
- TclNRAddCallback(interp, TclOONextRestoreFrame, framePtr,
- NULL, NULL, NULL);
- /* TODO: consider merging another layer of processing */
- return TclNRObjectContextInvokeNext(interp,
- (Tcl_ObjectContext) contextPtr, opnd, &OBJ_AT_DEPTH(opnd-1), 1);
- }
- {
- Object *oPtr;
+ oPtr = contextPtr->oPtr;
+ if (oPtr->flags & FILTER_HANDLING) {
+ TclNRAddCallback(interp, FinalizeOONextFilter,
+ framePtr, contextPtr, INT2PTR(contextPtr->index),
+ INT2PTR(contextPtr->skip));
+ } else {
+ TclNRAddCallback(interp, FinalizeOONext,
+ framePtr, contextPtr, INT2PTR(contextPtr->index),
+ INT2PTR(contextPtr->skip));
+ }
+ if (contextPtr->callPtr->chain[++contextPtr->index].isFilter
+ || contextPtr->callPtr->flags & FILTER_HANDLING) {
+ oPtr->flags |= FILTER_HANDLING;
+ } else {
+ oPtr->flags &= ~FILTER_HANDLING;
+ }
+ contextPtr->skip = 1;
+ {
+ register Method *const mPtr =
+ contextPtr->callPtr->chain[contextPtr->index].mPtr;
+
+ return mPtr->typePtr->callProc(mPtr->clientData, interp,
+ (Tcl_ObjectContext) contextPtr, opnd,
+ &OBJ_AT_DEPTH(opnd-1));
+ }
case INST_TCLOO_IS_OBJECT:
oPtr = (Object *) Tcl_GetObjectFromObj(interp, OBJ_AT_TOS);
@@ -7747,6 +7832,58 @@ TEBCresume(
#undef auxObjList
#undef catchTop
#undef TCONST
+
+static int
+FinalizeOONext(
+ ClientData data[],
+ Tcl_Interp *interp,
+ int result)
+{
+ Interp *iPtr = (Interp *) interp;
+ CallContext *contextPtr = data[1];
+
+ /*
+ * Reset the variable lookup frame.
+ */
+
+ iPtr->varFramePtr = data[0];
+
+ /*
+ * Restore the call chain context index as we've finished the inner invoke
+ * and want to operate in the outer context again.
+ */
+
+ contextPtr->index = PTR2INT(data[2]);
+ contextPtr->skip = PTR2INT(data[3]);
+ contextPtr->oPtr->flags &= ~FILTER_HANDLING;
+ return result;
+}
+
+static int
+FinalizeOONextFilter(
+ ClientData data[],
+ Tcl_Interp *interp,
+ int result)
+{
+ Interp *iPtr = (Interp *) interp;
+ CallContext *contextPtr = data[1];
+
+ /*
+ * Reset the variable lookup frame.
+ */
+
+ iPtr->varFramePtr = data[0];
+
+ /*
+ * Restore the call chain context index as we've finished the inner invoke
+ * and want to operate in the outer context again.
+ */
+
+ contextPtr->index = PTR2INT(data[2]);
+ contextPtr->skip = PTR2INT(data[3]);
+ contextPtr->oPtr->flags |= FILTER_HANDLING;
+ return result;
+}
/*
*----------------------------------------------------------------------
generated by cgit v0.12 at 2024-07-04 20:09:42 (GMT)