Move the disassembler to its own file.

4 files changed, 1072 insertions, 1034 deletions

diff --git a/generic/tclCompile.c b/generic/tclCompile.c
index c361430..f93bbad 100644
--- a/generic/tclCompile.c
+++ b/generic/tclCompile.c
@@ -576,11 +576,6 @@ static void		RegisterAuxDataType(const AuxDataType *typePtr);
 static int		SetByteCodeFromAny(Tcl_Interp *interp,
 			    Tcl_Obj *objPtr);
 static void		StartExpanding(CompileEnv *envPtr);
-static int		FormatInstruction(ByteCode *codePtr,
-			    const unsigned char *pc, Tcl_Obj *bufferObj);
-static void		PrintSourceToObj(Tcl_Obj *appendObj,
-			    const char *stringPtr, int maxChars);
-static void		UpdateStringOfInstName(Tcl_Obj *objPtr);
 
 /*
  * TIP #280: Helper for building the per-word line information of all compiled
@@ -619,19 +614,6 @@ static const Tcl_ObjType substCodeType = {
 };
 
 /*
- * The structure below defines an instruction name Tcl object to allow
- * reporting of inner contexts in errorstack without string allocation.
- */
-
-static const Tcl_ObjType tclInstNameType = {
-    "instname",			/* name */
-    NULL,			/* freeIntRepProc */
-    NULL,			/* dupIntRepProc */
-    UpdateStringOfInstName,	/* updateStringProc */
-    NULL,			/* setFromAnyProc */
-};
-
-/*
  * Helper macros.
  */
 
@@ -4411,773 +4393,6 @@ EncodeCmdLocMap(
     return p;
 }
 
-#ifdef TCL_COMPILE_DEBUG
-/*
- *----------------------------------------------------------------------
- *
- * TclPrintByteCodeObj --
- *
- *	This procedure prints ("disassembles") the instructions of a bytecode
- *	object to stdout.
- *
- * Results:
- *	None.
- *
- * Side effects:
- *	None.
- *
- *----------------------------------------------------------------------
- */
-
-void
-TclPrintByteCodeObj(
-    Tcl_Interp *interp,		/* Used only for Tcl_GetStringFromObj. */
-    Tcl_Obj *objPtr)		/* The bytecode object to disassemble. */
-{
-    Tcl_Obj *bufPtr = TclDisassembleByteCodeObj(objPtr);
-
-    fprintf(stdout, "\n%s", TclGetString(bufPtr));
-    Tcl_DecrRefCount(bufPtr);
-}
-
-/*
- *----------------------------------------------------------------------
- *
- * TclPrintInstruction --
- *
- *	This procedure prints ("disassembles") one instruction from a bytecode
- *	object to stdout.
- *
- * Results:
- *	Returns the length in bytes of the current instruiction.
- *
- * Side effects:
- *	None.
- *
- *----------------------------------------------------------------------
- */
-
-int
-TclPrintInstruction(
-    ByteCode *codePtr,		/* Bytecode containing the instruction. */
-    const unsigned char *pc)	/* Points to first byte of instruction. */
-{
-    Tcl_Obj *bufferObj;
-    int numBytes;
-
-    TclNewObj(bufferObj);
-    numBytes = FormatInstruction(codePtr, pc, bufferObj);
-    fprintf(stdout, "%s", TclGetString(bufferObj));
-    Tcl_DecrRefCount(bufferObj);
-    return numBytes;
-}
-
-/*
- *----------------------------------------------------------------------
- *
- * TclPrintObject --
- *
- *	This procedure prints up to a specified number of characters from the
- *	argument Tcl object's string representation to a specified file.
- *
- * Results:
- *	None.
- *
- * Side effects:
- *	Outputs characters to the specified file.
- *
- *----------------------------------------------------------------------
- */
-
-void
-TclPrintObject(
-    FILE *outFile,		/* The file to print the source to. */
-    Tcl_Obj *objPtr,		/* Points to the Tcl object whose string
-				 * representation should be printed. */
-    int maxChars)		/* Maximum number of chars to print. */
-{
-    char *bytes;
-    int length;
-
-    bytes = Tcl_GetStringFromObj(objPtr, &length);
-    TclPrintSource(outFile, bytes, TclMin(length, maxChars));
-}
-
-/*
- *----------------------------------------------------------------------
- *
- * TclPrintSource --
- *
- *	This procedure prints up to a specified number of characters from the
- *	argument string to a specified file. It tries to produce legible
- *	output by adding backslashes as necessary.
- *
- * Results:
- *	None.
- *
- * Side effects:
- *	Outputs characters to the specified file.
- *
- *----------------------------------------------------------------------
- */
-
-void
-TclPrintSource(
-    FILE *outFile,		/* The file to print the source to. */
-    const char *stringPtr,	/* The string to print. */
-    int maxChars)		/* Maximum number of chars to print. */
-{
-    Tcl_Obj *bufferObj;
-
-    TclNewObj(bufferObj);
-    PrintSourceToObj(bufferObj, stringPtr, maxChars);
-    fprintf(outFile, "%s", TclGetString(bufferObj));
-    Tcl_DecrRefCount(bufferObj);
-}
-#endif /* TCL_COMPILE_DEBUG */
-
-/*
- *----------------------------------------------------------------------
- *
- * TclDisassembleByteCodeObj --
- *
- *	Given an object which is of bytecode type, return a disassembled
- *	version of the bytecode (in a new refcount 0 object). No guarantees
- *	are made about the details of the contents of the result.
- *
- *----------------------------------------------------------------------
- */
-
-Tcl_Obj *
-TclDisassembleByteCodeObj(
-    Tcl_Obj *objPtr)		/* The bytecode object to disassemble. */
-{
-    ByteCode *codePtr = objPtr->internalRep.twoPtrValue.ptr1;
-    unsigned char *codeStart, *codeLimit, *pc;
-    unsigned char *codeDeltaNext, *codeLengthNext;
-    unsigned char *srcDeltaNext, *srcLengthNext;
-    int codeOffset, codeLen, srcOffset, srcLen, numCmds, delta, i;
-    Interp *iPtr = (Interp *) *codePtr->interpHandle;
-    Tcl_Obj *bufferObj;
-    char ptrBuf1[20], ptrBuf2[20];
-
-    TclNewObj(bufferObj);
-    if (codePtr->refCount <= 0) {
-	return bufferObj;	/* Already freed. */
-    }
-
-    codeStart = codePtr->codeStart;
-    codeLimit = codeStart + codePtr->numCodeBytes;
-    numCmds = codePtr->numCommands;
-
-    /*
-     * Print header lines describing the ByteCode.
-     */
-
-    sprintf(ptrBuf1, "%p", codePtr);
-    sprintf(ptrBuf2, "%p", iPtr);
-    Tcl_AppendPrintfToObj(bufferObj,
-	    "ByteCode 0x%s, refCt %u, epoch %u, interp 0x%s (epoch %u)\n",
-	    ptrBuf1, codePtr->refCount, codePtr->compileEpoch, ptrBuf2,
-	    iPtr->compileEpoch);
-    Tcl_AppendToObj(bufferObj, "  Source ", -1);
-    PrintSourceToObj(bufferObj, codePtr->source,
-	    TclMin(codePtr->numSrcBytes, 55));
-    Tcl_AppendPrintfToObj(bufferObj,
-	    "\n  Cmds %d, src %d, inst %d, litObjs %u, aux %d, stkDepth %u, code/src %.2f\n",
-	    numCmds, codePtr->numSrcBytes, codePtr->numCodeBytes,
-	    codePtr->numLitObjects, codePtr->numAuxDataItems,
-	    codePtr->maxStackDepth,
-#ifdef TCL_COMPILE_STATS
-	    codePtr->numSrcBytes?
-		    codePtr->structureSize/(float)codePtr->numSrcBytes :
-#endif
-	    0.0);
-
-#ifdef TCL_COMPILE_STATS
-    Tcl_AppendPrintfToObj(bufferObj,
-	    "  Code %lu = header %lu+inst %d+litObj %lu+exc %lu+aux %lu+cmdMap %d\n",
-	    (unsigned long) codePtr->structureSize,
-	    (unsigned long) (sizeof(ByteCode) - sizeof(size_t) - sizeof(Tcl_Time)),
-	    codePtr->numCodeBytes,
-	    (unsigned long) (codePtr->numLitObjects * sizeof(Tcl_Obj *)),
-	    (unsigned long) (codePtr->numExceptRanges*sizeof(ExceptionRange)),
-	    (unsigned long) (codePtr->numAuxDataItems * sizeof(AuxData)),
-	    codePtr->numCmdLocBytes);
-#endif /* TCL_COMPILE_STATS */
-
-    /*
-     * If the ByteCode is the compiled body of a Tcl procedure, print
-     * information about that procedure. Note that we don't know the
-     * procedure's name since ByteCode's can be shared among procedures.
-     */
-
-    if (codePtr->procPtr != NULL) {
-	Proc *procPtr = codePtr->procPtr;
-	int numCompiledLocals = procPtr->numCompiledLocals;
-
-	sprintf(ptrBuf1, "%p", procPtr);
-	Tcl_AppendPrintfToObj(bufferObj,
-		"  Proc 0x%s, refCt %d, args %d, compiled locals %d\n",
-		ptrBuf1, procPtr->refCount, procPtr->numArgs,
-		numCompiledLocals);
-	if (numCompiledLocals > 0) {
-	    CompiledLocal *localPtr = procPtr->firstLocalPtr;
-
-	    for (i = 0;  i < numCompiledLocals;  i++) {
-		Tcl_AppendPrintfToObj(bufferObj,
-			"      slot %d%s%s%s%s%s%s", i,
-			(localPtr->flags & (VAR_ARRAY|VAR_LINK)) ? "" : ", scalar",
-			(localPtr->flags & VAR_ARRAY) ? ", array" : "",
-			(localPtr->flags & VAR_LINK) ? ", link" : "",
-			(localPtr->flags & VAR_ARGUMENT) ? ", arg" : "",
-			(localPtr->flags & VAR_TEMPORARY) ? ", temp" : "",
-			(localPtr->flags & VAR_RESOLVED) ? ", resolved" : "");
-		if (TclIsVarTemporary(localPtr)) {
-		    Tcl_AppendToObj(bufferObj, "\n", -1);
-		} else {
-		    Tcl_AppendPrintfToObj(bufferObj, ", \"%s\"\n",
-			    localPtr->name);
-		}
-		localPtr = localPtr->nextPtr;
-	    }
-	}
-    }
-
-    /*
-     * Print the ExceptionRange array.
-     */
-
-    if (codePtr->numExceptRanges > 0) {
-	Tcl_AppendPrintfToObj(bufferObj, "  Exception ranges %d, depth %d:\n",
-		codePtr->numExceptRanges, codePtr->maxExceptDepth);
-	for (i = 0;  i < codePtr->numExceptRanges;  i++) {
-	    ExceptionRange *rangePtr = &codePtr->exceptArrayPtr[i];
-
-	    Tcl_AppendPrintfToObj(bufferObj,
-		    "      %d: level %d, %s, pc %d-%d, ",
-		    i, rangePtr->nestingLevel,
-		    (rangePtr->type==LOOP_EXCEPTION_RANGE ? "loop" : "catch"),
-		    rangePtr->codeOffset,
-		    (rangePtr->codeOffset + rangePtr->numCodeBytes - 1));
-	    switch (rangePtr->type) {
-	    case LOOP_EXCEPTION_RANGE:
-		Tcl_AppendPrintfToObj(bufferObj, "continue %d, break %d\n",
-			rangePtr->continueOffset, rangePtr->breakOffset);
-		break;
-	    case CATCH_EXCEPTION_RANGE:
-		Tcl_AppendPrintfToObj(bufferObj, "catch %d\n",
-			rangePtr->catchOffset);
-		break;
-	    default:
-		Tcl_Panic("TclDisassembleByteCodeObj: bad ExceptionRange type %d",
-			rangePtr->type);
-	    }
-	}
-    }
-
-    /*
-     * If there were no commands (e.g., an expression or an empty string was
-     * compiled), just print all instructions and return.
-     */
-
-    if (numCmds == 0) {
-	pc = codeStart;
-	while (pc < codeLimit) {
-	    Tcl_AppendToObj(bufferObj, "    ", -1);
-	    pc += FormatInstruction(codePtr, pc, bufferObj);
-	}
-	return bufferObj;
-    }
-
-    /*
-     * Print table showing the code offset, source offset, and source length
-     * for each command. These are encoded as a sequence of bytes.
-     */
-
-    Tcl_AppendPrintfToObj(bufferObj, "  Commands %d:", numCmds);
-    codeDeltaNext = codePtr->codeDeltaStart;
-    codeLengthNext = codePtr->codeLengthStart;
-    srcDeltaNext = codePtr->srcDeltaStart;
-    srcLengthNext = codePtr->srcLengthStart;
-    codeOffset = srcOffset = 0;
-    for (i = 0;  i < numCmds;  i++) {
-	if ((unsigned) *codeDeltaNext == (unsigned) 0xFF) {
-	    codeDeltaNext++;
-	    delta = TclGetInt4AtPtr(codeDeltaNext);
-	    codeDeltaNext += 4;
-	} else {
-	    delta = TclGetInt1AtPtr(codeDeltaNext);
-	    codeDeltaNext++;
-	}
-	codeOffset += delta;
-
-	if ((unsigned) *codeLengthNext == (unsigned) 0xFF) {
-	    codeLengthNext++;
-	    codeLen = TclGetInt4AtPtr(codeLengthNext);
-	    codeLengthNext += 4;
-	} else {
-	    codeLen = TclGetInt1AtPtr(codeLengthNext);
-	    codeLengthNext++;
-	}
-
-	if ((unsigned) *srcDeltaNext == (unsigned) 0xFF) {
-	    srcDeltaNext++;
-	    delta = TclGetInt4AtPtr(srcDeltaNext);
-	    srcDeltaNext += 4;
-	} else {
-	    delta = TclGetInt1AtPtr(srcDeltaNext);
-	    srcDeltaNext++;
-	}
-	srcOffset += delta;
-
-	if ((unsigned) *srcLengthNext == (unsigned) 0xFF) {
-	    srcLengthNext++;
-	    srcLen = TclGetInt4AtPtr(srcLengthNext);
-	    srcLengthNext += 4;
-	} else {
-	    srcLen = TclGetInt1AtPtr(srcLengthNext);
-	    srcLengthNext++;
-	}
-
-	Tcl_AppendPrintfToObj(bufferObj, "%s%4d: pc %d-%d, src %d-%d",
-		((i % 2)? "     " : "\n   "),
-		(i+1), codeOffset, (codeOffset + codeLen - 1),
-		srcOffset, (srcOffset + srcLen - 1));
-    }
-    if (numCmds > 0) {
-	Tcl_AppendToObj(bufferObj, "\n", -1);
-    }
-
-    /*
-     * Print each instruction. If the instruction corresponds to the start of
-     * a command, print the command's source. Note that we don't need the code
-     * length here.
-     */
-
-    codeDeltaNext = codePtr->codeDeltaStart;
-    srcDeltaNext = codePtr->srcDeltaStart;
-    srcLengthNext = codePtr->srcLengthStart;
-    codeOffset = srcOffset = 0;
-    pc = codeStart;
-    for (i = 0;  i < numCmds;  i++) {
-	if ((unsigned) *codeDeltaNext == (unsigned) 0xFF) {
-	    codeDeltaNext++;
-	    delta = TclGetInt4AtPtr(codeDeltaNext);
-	    codeDeltaNext += 4;
-	} else {
-	    delta = TclGetInt1AtPtr(codeDeltaNext);
-	    codeDeltaNext++;
-	}
-	codeOffset += delta;
-
-	if ((unsigned) *srcDeltaNext == (unsigned) 0xFF) {
-	    srcDeltaNext++;
-	    delta = TclGetInt4AtPtr(srcDeltaNext);
-	    srcDeltaNext += 4;
-	} else {
-	    delta = TclGetInt1AtPtr(srcDeltaNext);
-	    srcDeltaNext++;
-	}
-	srcOffset += delta;
-
-	if ((unsigned) *srcLengthNext == (unsigned) 0xFF) {
-	    srcLengthNext++;
-	    srcLen = TclGetInt4AtPtr(srcLengthNext);
-	    srcLengthNext += 4;
-	} else {
-	    srcLen = TclGetInt1AtPtr(srcLengthNext);
-	    srcLengthNext++;
-	}
-
-	/*
-	 * Print instructions before command i.
-	 */
-
-	while ((pc-codeStart) < codeOffset) {
-	    Tcl_AppendToObj(bufferObj, "    ", -1);
-	    pc += FormatInstruction(codePtr, pc, bufferObj);
-	}
-
-	Tcl_AppendPrintfToObj(bufferObj, "  Command %d: ", i+1);
-	PrintSourceToObj(bufferObj, (codePtr->source + srcOffset),
-		TclMin(srcLen, 55));
-	Tcl_AppendToObj(bufferObj, "\n", -1);
-    }
-    if (pc < codeLimit) {
-	/*
-	 * Print instructions after the last command.
-	 */
-
-	while (pc < codeLimit) {
-	    Tcl_AppendToObj(bufferObj, "    ", -1);
-	    pc += FormatInstruction(codePtr, pc, bufferObj);
-	}
-    }
-    return bufferObj;
-}
-
-/*
- *----------------------------------------------------------------------
- *
- * FormatInstruction --
- *
- *	Appends a representation of a bytecode instruction to a Tcl_Obj.
- *
- *----------------------------------------------------------------------
- */
-
-static int
-FormatInstruction(
-    ByteCode *codePtr,		/* Bytecode containing the instruction. */
-    const unsigned char *pc,	/* Points to first byte of instruction. */
-    Tcl_Obj *bufferObj)		/* Object to append instruction info to. */
-{
-    Proc *procPtr = codePtr->procPtr;
-    unsigned char opCode = *pc;
-    register const InstructionDesc *instDesc = &tclInstructionTable[opCode];
-    unsigned char *codeStart = codePtr->codeStart;
-    unsigned pcOffset = pc - codeStart;
-    int opnd = 0, i, j, numBytes = 1;
-    int localCt = procPtr ? procPtr->numCompiledLocals : 0;
-    CompiledLocal *localPtr = procPtr ? procPtr->firstLocalPtr : NULL;
-    char suffixBuffer[128];	/* Additional info to print after main opcode
-				 * and immediates. */
-    char *suffixSrc = NULL;
-    Tcl_Obj *suffixObj = NULL;
-    AuxData *auxPtr = NULL;
-
-    suffixBuffer[0] = '\0';
-    Tcl_AppendPrintfToObj(bufferObj, "(%u) %s ", pcOffset, instDesc->name);
-    for (i = 0;  i < instDesc->numOperands;  i++) {
-	switch (instDesc->opTypes[i]) {
-	case OPERAND_INT1:
-	    opnd = TclGetInt1AtPtr(pc+numBytes); numBytes++;
-	    if (opCode == INST_JUMP1 || opCode == INST_JUMP_TRUE1
-		    || opCode == INST_JUMP_FALSE1) {
-		sprintf(suffixBuffer, "pc %u", pcOffset+opnd);
-	    }
-	    Tcl_AppendPrintfToObj(bufferObj, "%+d ", opnd);
-	    break;
-	case OPERAND_INT4:
-	    opnd = TclGetInt4AtPtr(pc+numBytes); numBytes += 4;
-	    if (opCode == INST_JUMP4 || opCode == INST_JUMP_TRUE4
-		    || opCode == INST_JUMP_FALSE4) {
-		sprintf(suffixBuffer, "pc %u", pcOffset+opnd);
-	    } else if (opCode == INST_START_CMD) {
-		sprintf(suffixBuffer, "next cmd at pc %u", pcOffset+opnd);
-	    }
-	    Tcl_AppendPrintfToObj(bufferObj, "%+d ", opnd);
-	    break;
-	case OPERAND_UINT1:
-	    opnd = TclGetUInt1AtPtr(pc+numBytes); numBytes++;
-	    if (opCode == INST_PUSH1) {
-		suffixObj = codePtr->objArrayPtr[opnd];
-	    }
-	    Tcl_AppendPrintfToObj(bufferObj, "%u ", (unsigned) opnd);
-	    break;
-	case OPERAND_AUX4:
-	case OPERAND_UINT4:
-	    opnd = TclGetUInt4AtPtr(pc+numBytes); numBytes += 4;
-	    if (opCode == INST_PUSH4) {
-		suffixObj = codePtr->objArrayPtr[opnd];
-	    } else if (opCode == INST_START_CMD && opnd != 1) {
-		sprintf(suffixBuffer+strlen(suffixBuffer),
-			", %u cmds start here", opnd);
-	    }
-	    Tcl_AppendPrintfToObj(bufferObj, "%u ", (unsigned) opnd);
-	    if (instDesc->opTypes[i] == OPERAND_AUX4) {
-		auxPtr = &codePtr->auxDataArrayPtr[opnd];
-	    }
-	    break;
-	case OPERAND_IDX4:
-	    opnd = TclGetInt4AtPtr(pc+numBytes); numBytes += 4;
-	    if (opnd >= -1) {
-		Tcl_AppendPrintfToObj(bufferObj, "%d ", opnd);
-	    } else if (opnd == -2) {
-		Tcl_AppendPrintfToObj(bufferObj, "end ");
-	    } else {
-		Tcl_AppendPrintfToObj(bufferObj, "end-%d ", -2-opnd);
-	    }
-	    break;
-	case OPERAND_LVT1:
-	    opnd = TclGetUInt1AtPtr(pc+numBytes);
-	    numBytes++;
-	    goto printLVTindex;
-	case OPERAND_LVT4:
-	    opnd = TclGetUInt4AtPtr(pc+numBytes);
-	    numBytes += 4;
-	printLVTindex:
-	    if (localPtr != NULL) {
-		if (opnd >= localCt) {
-		    Tcl_Panic("FormatInstruction: bad local var index %u (%u locals)",
-			    (unsigned) opnd, localCt);
-		}
-		for (j = 0;  j < opnd;  j++) {
-		    localPtr = localPtr->nextPtr;
-		}
-		if (TclIsVarTemporary(localPtr)) {
-		    sprintf(suffixBuffer, "temp var %u", (unsigned) opnd);
-		} else {
-		    sprintf(suffixBuffer, "var ");
-		    suffixSrc = localPtr->name;
-		}
-	    }
-	    Tcl_AppendPrintfToObj(bufferObj, "%%v%u ", (unsigned) opnd);
-	    break;
-	case OPERAND_NONE:
-	default:
-	    break;
-	}
-    }
-    if (suffixObj) {
-	const char *bytes;
-	int length;
-
-	Tcl_AppendToObj(bufferObj, "\t# ", -1);
-	bytes = Tcl_GetStringFromObj(codePtr->objArrayPtr[opnd], &length);
-	PrintSourceToObj(bufferObj, bytes, TclMin(length, 40));
-    } else if (suffixBuffer[0]) {
-	Tcl_AppendPrintfToObj(bufferObj, "\t# %s", suffixBuffer);
-	if (suffixSrc) {
-	    PrintSourceToObj(bufferObj, suffixSrc, 40);
-	}
-    }
-    Tcl_AppendToObj(bufferObj, "\n", -1);
-    if (auxPtr && auxPtr->type->printProc) {
-	Tcl_AppendToObj(bufferObj, "\t\t[", -1);
-	auxPtr->type->printProc(auxPtr->clientData, bufferObj, codePtr,
-		pcOffset);
-	Tcl_AppendToObj(bufferObj, "]\n", -1);
-    }
-    return numBytes;
-}
-
-/*
- *----------------------------------------------------------------------
- *
- * TclGetInnerContext --
- *
- *	If possible, returns a list capturing the inner context. Otherwise
- *	return NULL.
- *
- *----------------------------------------------------------------------
- */
-
-Tcl_Obj *
-TclGetInnerContext(
-    Tcl_Interp *interp,
-    const unsigned char *pc,
-    Tcl_Obj **tosPtr)
-{
-    int objc = 0, off = 0;
-    Tcl_Obj *result;
-    Interp *iPtr = (Interp *) interp;
-
-    switch (*pc) {
-    case INST_STR_LEN:
-    case INST_LNOT:
-    case INST_BITNOT:
-    case INST_UMINUS:
-    case INST_UPLUS:
-    case INST_TRY_CVT_TO_NUMERIC:
-    case INST_EXPAND_STKTOP:
-    case INST_EXPR_STK:
-        objc = 1;
-        break;
-
-    case INST_LIST_IN:
-    case INST_LIST_NOT_IN:	/* Basic list containment operators. */
-    case INST_STR_EQ:
-    case INST_STR_NEQ:		/* String (in)equality check */
-    case INST_STR_CMP:		/* String compare. */
-    case INST_STR_INDEX:
-    case INST_STR_MATCH:
-    case INST_REGEXP:
-    case INST_EQ:
-    case INST_NEQ:
-    case INST_LT:
-    case INST_GT:
-    case INST_LE:
-    case INST_GE:
-    case INST_MOD:
-    case INST_LSHIFT:
-    case INST_RSHIFT:
-    case INST_BITOR:
-    case INST_BITXOR:
-    case INST_BITAND:
-    case INST_EXPON:
-    case INST_ADD:
-    case INST_SUB:
-    case INST_DIV:
-    case INST_MULT:
-        objc = 2;
-        break;
-
-    case INST_RETURN_STK:
-        /* early pop. TODO: dig out opt dict too :/ */
-        objc = 1;
-        break;
-
-    case INST_SYNTAX:
-    case INST_RETURN_IMM:
-        objc = 2;
-        break;
-
-    case INST_INVOKE_STK4:
-	objc = TclGetUInt4AtPtr(pc+1);
-        break;
-
-    case INST_INVOKE_STK1:
-	objc = TclGetUInt1AtPtr(pc+1);
-	break;
-    }
-
-    result = iPtr->innerContext;
-    if (Tcl_IsShared(result)) {
-        Tcl_DecrRefCount(result);
-        iPtr->innerContext = result = Tcl_NewListObj(objc + 1, NULL);
-        Tcl_IncrRefCount(result);
-    } else {
-        int len;
-
-        /*
-         * Reset while keeping the list intrep as much as possible.
-         */
-
-	Tcl_ListObjLength(interp, result, &len);
-        Tcl_ListObjReplace(interp, result, 0, len, 0, NULL);
-    }
-    Tcl_ListObjAppendElement(NULL, result, TclNewInstNameObj(*pc));
-
-    for (; objc>0 ; objc--) {
-        Tcl_Obj *objPtr;
-
-        objPtr = tosPtr[1 - objc + off];
-        if (!objPtr) {
-            Tcl_Panic("InnerContext: bad tos -- appending null object");
-        }
-        if ((objPtr->refCount<=0)
-#ifdef TCL_MEM_DEBUG
-                || (objPtr->refCount==0x61616161)
-#endif
-        ) {
-            Tcl_Panic("InnerContext: bad tos -- appending freed object %p",
-                    objPtr);
-        }
-        Tcl_ListObjAppendElement(NULL, result, objPtr);
-    }
-
-    return result;
-}
-
-/*
- *----------------------------------------------------------------------
- *
- * TclNewInstNameObj --
- *
- *	Creates a new InstName Tcl_Obj based on the given instruction
- *
- *----------------------------------------------------------------------
- */
-
-Tcl_Obj *
-TclNewInstNameObj(
-    unsigned char inst)
-{
-    Tcl_Obj *objPtr = Tcl_NewObj();
-
-    objPtr->typePtr = &tclInstNameType;
-    objPtr->internalRep.longValue = (long) inst;
-    objPtr->bytes = NULL;
-
-    return objPtr;
-}
-
-/*
- *----------------------------------------------------------------------
- *
- * UpdateStringOfInstName --
- *
- *	Update the string representation for an instruction name object.
- *
- *----------------------------------------------------------------------
- */
-
-static void
-UpdateStringOfInstName(
-    Tcl_Obj *objPtr)
-{
-    int inst = objPtr->internalRep.longValue;
-    char *s, buf[20];
-    int len;
-
-    if ((inst < 0) || (inst > LAST_INST_OPCODE)) {
-        sprintf(buf, "inst_%d", inst);
-        s = buf;
-    } else {
-        s = (char *) tclInstructionTable[objPtr->internalRep.longValue].name;
-    }
-    len = strlen(s);
-    objPtr->bytes = ckalloc(len + 1);
-    memcpy(objPtr->bytes, s, len + 1);
-    objPtr->length = len;
-}
-
-/*
- *----------------------------------------------------------------------
- *
- * PrintSourceToObj --
- *
- *	Appends a quoted representation of a string to a Tcl_Obj.
- *
- *----------------------------------------------------------------------
- */
-
-static void
-PrintSourceToObj(
-    Tcl_Obj *appendObj,		/* The object to print the source to. */
-    const char *stringPtr,	/* The string to print. */
-    int maxChars)		/* Maximum number of chars to print. */
-{
-    register const char *p;
-    register int i = 0;
-
-    if (stringPtr == NULL) {
-	Tcl_AppendToObj(appendObj, "\"\"", -1);
-	return;
-    }
-
-    Tcl_AppendToObj(appendObj, "\"", -1);
-    p = stringPtr;
-    for (;  (*p != '\0') && (i < maxChars);  p++, i++) {
-	switch (*p) {
-	case '"':
-	    Tcl_AppendToObj(appendObj, "\\\"", -1);
-	    continue;
-	case '\f':
-	    Tcl_AppendToObj(appendObj, "\\f", -1);
-	    continue;
-	case '\n':
-	    Tcl_AppendToObj(appendObj, "\\n", -1);
-	    continue;
-	case '\r':
-	    Tcl_AppendToObj(appendObj, "\\r", -1);
-	    continue;
-	case '\t':
-	    Tcl_AppendToObj(appendObj, "\\t", -1);
-	    continue;
-	case '\v':
-	    Tcl_AppendToObj(appendObj, "\\v", -1);
-	    continue;
-	default:
-	    Tcl_AppendPrintfToObj(appendObj, "%c", *p);
-	    continue;
-	}
-    }
-    Tcl_AppendToObj(appendObj, "\"", -1);
-}
-
 #ifdef TCL_COMPILE_STATS
 /*
  *----------------------------------------------------------------------
diff --git a/generic/tclCompile.h b/generic/tclCompile.h
index 9af4911..f28403d 100644
--- a/generic/tclCompile.h
+++ b/generic/tclCompile.h
@@ -48,6 +48,13 @@ MODULE_SCOPE int 	tclTraceCompile;
 
 MODULE_SCOPE int 	tclTraceExec;
 #endif
+
+/*
+ * The type of lambda expressions. Note that every lambda will *always* have a
+ * string representation.
+ */
+
+MODULE_SCOPE const Tcl_ObjType tclLambdaType;
 
 /*
  *------------------------------------------------------------------------
@@ -1099,12 +1106,15 @@ MODULE_SCOPE void	TclVerifyLocalLiteralTable(CompileEnv *envPtr);
 MODULE_SCOPE int	TclWordKnownAtCompileTime(Tcl_Token *tokenPtr,
 			    Tcl_Obj *valuePtr);
 MODULE_SCOPE void	TclLogCommandInfo(Tcl_Interp *interp,
-					  const char *script,
-					  const char *command, int length,
-					  const unsigned char *pc, Tcl_Obj **tosPtr); 
+			    const char *script, const char *command,
+			    int length, const unsigned char *pc,
+			    Tcl_Obj **tosPtr); 
 MODULE_SCOPE Tcl_Obj	*TclGetInnerContext(Tcl_Interp *interp,
-					    const unsigned char *pc, Tcl_Obj **tosPtr);
+			    const unsigned char *pc, Tcl_Obj **tosPtr);
 MODULE_SCOPE Tcl_Obj	*TclNewInstNameObj(unsigned char inst);
+MODULE_SCOPE int	TclPushProcCallFrame(ClientData clientData,
+			    register Tcl_Interp *interp, int objc,
+			    Tcl_Obj *const objv[], int isLambda);
 
 
 /*
diff --git a/generic/tclDisassemble.c b/generic/tclDisassemble.c
new file mode 100644
index 0000000..bc84763
--- /dev/null
+++ b/generic/tclDisassemble.c
@@ -0,0 +1,1045 @@
+/*
+ * tclDisassemble.c --
+ *
+ *	This file contains procedures that disassemble bytecode into either
+ *	human-readable or Tcl-processable forms.
+ *
+ * Copyright (c) 1996-1998 Sun Microsystems, Inc.
+ * Copyright (c) 2001 by Kevin B. Kenny. All rights reserved.
+ * Copyright (c) 2013 Donal K. Fellows.
+ *
+ * See the file "license.terms" for information on usage and redistribution of
+ * this file, and for a DISCLAIMER OF ALL WARRANTIES.
+ */
+
+#include "tclInt.h"
+#include "tclCompile.h"
+#include "tclOOInt.h"
+#include <assert.h>
+
+/*
+ * Prototypes for procedures defined later in this file:
+ */
+
+static int		FormatInstruction(ByteCode *codePtr,
+			    const unsigned char *pc, Tcl_Obj *bufferObj);
+static void		PrintSourceToObj(Tcl_Obj *appendObj,
+			    const char *stringPtr, int maxChars);
+static void		UpdateStringOfInstName(Tcl_Obj *objPtr);
+
+/*
+ * The structure below defines an instruction name Tcl object to allow
+ * reporting of inner contexts in errorstack without string allocation.
+ */
+
+static const Tcl_ObjType tclInstNameType = {
+    "instname",			/* name */
+    NULL,			/* freeIntRepProc */
+    NULL,			/* dupIntRepProc */
+    UpdateStringOfInstName,	/* updateStringProc */
+    NULL,			/* setFromAnyProc */
+};
+
+#ifdef TCL_COMPILE_DEBUG
+/*
+ *----------------------------------------------------------------------
+ *
+ * TclPrintByteCodeObj --
+ *
+ *	This procedure prints ("disassembles") the instructions of a bytecode
+ *	object to stdout.
+ *
+ * Results:
+ *	None.
+ *
+ * Side effects:
+ *	None.
+ *
+ *----------------------------------------------------------------------
+ */
+
+void
+TclPrintByteCodeObj(
+    Tcl_Interp *interp,		/* Used only for Tcl_GetStringFromObj. */
+    Tcl_Obj *objPtr)		/* The bytecode object to disassemble. */
+{
+    Tcl_Obj *bufPtr = TclDisassembleByteCodeObj(objPtr);
+
+    fprintf(stdout, "\n%s", TclGetString(bufPtr));
+    Tcl_DecrRefCount(bufPtr);
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * TclPrintInstruction --
+ *
+ *	This procedure prints ("disassembles") one instruction from a bytecode
+ *	object to stdout.
+ *
+ * Results:
+ *	Returns the length in bytes of the current instruiction.
+ *
+ * Side effects:
+ *	None.
+ *
+ *----------------------------------------------------------------------
+ */
+
+int
+TclPrintInstruction(
+    ByteCode *codePtr,		/* Bytecode containing the instruction. */
+    const unsigned char *pc)	/* Points to first byte of instruction. */
+{
+    Tcl_Obj *bufferObj;
+    int numBytes;
+
+    TclNewObj(bufferObj);
+    numBytes = FormatInstruction(codePtr, pc, bufferObj);
+    fprintf(stdout, "%s", TclGetString(bufferObj));
+    Tcl_DecrRefCount(bufferObj);
+    return numBytes;
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * TclPrintObject --
+ *
+ *	This procedure prints up to a specified number of characters from the
+ *	argument Tcl object's string representation to a specified file.
+ *
+ * Results:
+ *	None.
+ *
+ * Side effects:
+ *	Outputs characters to the specified file.
+ *
+ *----------------------------------------------------------------------
+ */
+
+void
+TclPrintObject(
+    FILE *outFile,		/* The file to print the source to. */
+    Tcl_Obj *objPtr,		/* Points to the Tcl object whose string
+				 * representation should be printed. */
+    int maxChars)		/* Maximum number of chars to print. */
+{
+    char *bytes;
+    int length;
+
+    bytes = Tcl_GetStringFromObj(objPtr, &length);
+    TclPrintSource(outFile, bytes, TclMin(length, maxChars));
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * TclPrintSource --
+ *
+ *	This procedure prints up to a specified number of characters from the
+ *	argument string to a specified file. It tries to produce legible
+ *	output by adding backslashes as necessary.
+ *
+ * Results:
+ *	None.
+ *
+ * Side effects:
+ *	Outputs characters to the specified file.
+ *
+ *----------------------------------------------------------------------
+ */
+
+void
+TclPrintSource(
+    FILE *outFile,		/* The file to print the source to. */
+    const char *stringPtr,	/* The string to print. */
+    int maxChars)		/* Maximum number of chars to print. */
+{
+    Tcl_Obj *bufferObj;
+
+    TclNewObj(bufferObj);
+    PrintSourceToObj(bufferObj, stringPtr, maxChars);
+    fprintf(outFile, "%s", TclGetString(bufferObj));
+    Tcl_DecrRefCount(bufferObj);
+}
+#endif /* TCL_COMPILE_DEBUG */
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * TclDisassembleByteCodeObj --
+ *
+ *	Given an object which is of bytecode type, return a disassembled
+ *	version of the bytecode (in a new refcount 0 object). No guarantees
+ *	are made about the details of the contents of the result.
+ *
+ *----------------------------------------------------------------------
+ */
+
+Tcl_Obj *
+TclDisassembleByteCodeObj(
+    Tcl_Obj *objPtr)		/* The bytecode object to disassemble. */
+{
+    ByteCode *codePtr = objPtr->internalRep.twoPtrValue.ptr1;
+    unsigned char *codeStart, *codeLimit, *pc;
+    unsigned char *codeDeltaNext, *codeLengthNext;
+    unsigned char *srcDeltaNext, *srcLengthNext;
+    int codeOffset, codeLen, srcOffset, srcLen, numCmds, delta, i;
+    Interp *iPtr = (Interp *) *codePtr->interpHandle;
+    Tcl_Obj *bufferObj;
+    char ptrBuf1[20], ptrBuf2[20];
+
+    TclNewObj(bufferObj);
+    if (codePtr->refCount <= 0) {
+	return bufferObj;	/* Already freed. */
+    }
+
+    codeStart = codePtr->codeStart;
+    codeLimit = codeStart + codePtr->numCodeBytes;
+    numCmds = codePtr->numCommands;
+
+    /*
+     * Print header lines describing the ByteCode.
+     */
+
+    sprintf(ptrBuf1, "%p", codePtr);
+    sprintf(ptrBuf2, "%p", iPtr);
+    Tcl_AppendPrintfToObj(bufferObj,
+	    "ByteCode 0x%s, refCt %u, epoch %u, interp 0x%s (epoch %u)\n",
+	    ptrBuf1, codePtr->refCount, codePtr->compileEpoch, ptrBuf2,
+	    iPtr->compileEpoch);
+    Tcl_AppendToObj(bufferObj, "  Source ", -1);
+    PrintSourceToObj(bufferObj, codePtr->source,
+	    TclMin(codePtr->numSrcBytes, 55));
+    Tcl_AppendPrintfToObj(bufferObj,
+	    "\n  Cmds %d, src %d, inst %d, litObjs %u, aux %d, stkDepth %u, code/src %.2f\n",
+	    numCmds, codePtr->numSrcBytes, codePtr->numCodeBytes,
+	    codePtr->numLitObjects, codePtr->numAuxDataItems,
+	    codePtr->maxStackDepth,
+#ifdef TCL_COMPILE_STATS
+	    codePtr->numSrcBytes?
+		    codePtr->structureSize/(float)codePtr->numSrcBytes :
+#endif
+	    0.0);
+
+#ifdef TCL_COMPILE_STATS
+    Tcl_AppendPrintfToObj(bufferObj,
+	    "  Code %lu = header %lu+inst %d+litObj %lu+exc %lu+aux %lu+cmdMap %d\n",
+	    (unsigned long) codePtr->structureSize,
+	    (unsigned long) (sizeof(ByteCode) - sizeof(size_t) - sizeof(Tcl_Time)),
+	    codePtr->numCodeBytes,
+	    (unsigned long) (codePtr->numLitObjects * sizeof(Tcl_Obj *)),
+	    (unsigned long) (codePtr->numExceptRanges*sizeof(ExceptionRange)),
+	    (unsigned long) (codePtr->numAuxDataItems * sizeof(AuxData)),
+	    codePtr->numCmdLocBytes);
+#endif /* TCL_COMPILE_STATS */
+
+    /*
+     * If the ByteCode is the compiled body of a Tcl procedure, print
+     * information about that procedure. Note that we don't know the
+     * procedure's name since ByteCode's can be shared among procedures.
+     */
+
+    if (codePtr->procPtr != NULL) {
+	Proc *procPtr = codePtr->procPtr;
+	int numCompiledLocals = procPtr->numCompiledLocals;
+
+	sprintf(ptrBuf1, "%p", procPtr);
+	Tcl_AppendPrintfToObj(bufferObj,
+		"  Proc 0x%s, refCt %d, args %d, compiled locals %d\n",
+		ptrBuf1, procPtr->refCount, procPtr->numArgs,
+		numCompiledLocals);
+	if (numCompiledLocals > 0) {
+	    CompiledLocal *localPtr = procPtr->firstLocalPtr;
+
+	    for (i = 0;  i < numCompiledLocals;  i++) {
+		Tcl_AppendPrintfToObj(bufferObj,
+			"      slot %d%s%s%s%s%s%s", i,
+			(localPtr->flags & (VAR_ARRAY|VAR_LINK)) ? "" : ", scalar",
+			(localPtr->flags & VAR_ARRAY) ? ", array" : "",
+			(localPtr->flags & VAR_LINK) ? ", link" : "",
+			(localPtr->flags & VAR_ARGUMENT) ? ", arg" : "",
+			(localPtr->flags & VAR_TEMPORARY) ? ", temp" : "",
+			(localPtr->flags & VAR_RESOLVED) ? ", resolved" : "");
+		if (TclIsVarTemporary(localPtr)) {
+		    Tcl_AppendToObj(bufferObj, "\n", -1);
+		} else {
+		    Tcl_AppendPrintfToObj(bufferObj, ", \"%s\"\n",
+			    localPtr->name);
+		}
+		localPtr = localPtr->nextPtr;
+	    }
+	}
+    }
+
+    /*
+     * Print the ExceptionRange array.
+     */
+
+    if (codePtr->numExceptRanges > 0) {
+	Tcl_AppendPrintfToObj(bufferObj, "  Exception ranges %d, depth %d:\n",
+		codePtr->numExceptRanges, codePtr->maxExceptDepth);
+	for (i = 0;  i < codePtr->numExceptRanges;  i++) {
+	    ExceptionRange *rangePtr = &codePtr->exceptArrayPtr[i];
+
+	    Tcl_AppendPrintfToObj(bufferObj,
+		    "      %d: level %d, %s, pc %d-%d, ",
+		    i, rangePtr->nestingLevel,
+		    (rangePtr->type==LOOP_EXCEPTION_RANGE ? "loop" : "catch"),
+		    rangePtr->codeOffset,
+		    (rangePtr->codeOffset + rangePtr->numCodeBytes - 1));
+	    switch (rangePtr->type) {
+	    case LOOP_EXCEPTION_RANGE:
+		Tcl_AppendPrintfToObj(bufferObj, "continue %d, break %d\n",
+			rangePtr->continueOffset, rangePtr->breakOffset);
+		break;
+	    case CATCH_EXCEPTION_RANGE:
+		Tcl_AppendPrintfToObj(bufferObj, "catch %d\n",
+			rangePtr->catchOffset);
+		break;
+	    default:
+		Tcl_Panic("TclDisassembleByteCodeObj: bad ExceptionRange type %d",
+			rangePtr->type);
+	    }
+	}
+    }
+
+    /*
+     * If there were no commands (e.g., an expression or an empty string was
+     * compiled), just print all instructions and return.
+     */
+
+    if (numCmds == 0) {
+	pc = codeStart;
+	while (pc < codeLimit) {
+	    Tcl_AppendToObj(bufferObj, "    ", -1);
+	    pc += FormatInstruction(codePtr, pc, bufferObj);
+	}
+	return bufferObj;
+    }
+
+    /*
+     * Print table showing the code offset, source offset, and source length
+     * for each command. These are encoded as a sequence of bytes.
+     */
+
+    Tcl_AppendPrintfToObj(bufferObj, "  Commands %d:", numCmds);
+    codeDeltaNext = codePtr->codeDeltaStart;
+    codeLengthNext = codePtr->codeLengthStart;
+    srcDeltaNext = codePtr->srcDeltaStart;
+    srcLengthNext = codePtr->srcLengthStart;
+    codeOffset = srcOffset = 0;
+    for (i = 0;  i < numCmds;  i++) {
+	if ((unsigned) *codeDeltaNext == (unsigned) 0xFF) {
+	    codeDeltaNext++;
+	    delta = TclGetInt4AtPtr(codeDeltaNext);
+	    codeDeltaNext += 4;
+	} else {
+	    delta = TclGetInt1AtPtr(codeDeltaNext);
+	    codeDeltaNext++;
+	}
+	codeOffset += delta;
+
+	if ((unsigned) *codeLengthNext == (unsigned) 0xFF) {
+	    codeLengthNext++;
+	    codeLen = TclGetInt4AtPtr(codeLengthNext);
+	    codeLengthNext += 4;
+	} else {
+	    codeLen = TclGetInt1AtPtr(codeLengthNext);
+	    codeLengthNext++;
+	}
+
+	if ((unsigned) *srcDeltaNext == (unsigned) 0xFF) {
+	    srcDeltaNext++;
+	    delta = TclGetInt4AtPtr(srcDeltaNext);
+	    srcDeltaNext += 4;
+	} else {
+	    delta = TclGetInt1AtPtr(srcDeltaNext);
+	    srcDeltaNext++;
+	}
+	srcOffset += delta;
+
+	if ((unsigned) *srcLengthNext == (unsigned) 0xFF) {
+	    srcLengthNext++;
+	    srcLen = TclGetInt4AtPtr(srcLengthNext);
+	    srcLengthNext += 4;
+	} else {
+	    srcLen = TclGetInt1AtPtr(srcLengthNext);
+	    srcLengthNext++;
+	}
+
+	Tcl_AppendPrintfToObj(bufferObj, "%s%4d: pc %d-%d, src %d-%d",
+		((i % 2)? "     " : "\n   "),
+		(i+1), codeOffset, (codeOffset + codeLen - 1),
+		srcOffset, (srcOffset + srcLen - 1));
+    }
+    if (numCmds > 0) {
+	Tcl_AppendToObj(bufferObj, "\n", -1);
+    }
+
+    /*
+     * Print each instruction. If the instruction corresponds to the start of
+     * a command, print the command's source. Note that we don't need the code
+     * length here.
+     */
+
+    codeDeltaNext = codePtr->codeDeltaStart;
+    srcDeltaNext = codePtr->srcDeltaStart;
+    srcLengthNext = codePtr->srcLengthStart;
+    codeOffset = srcOffset = 0;
+    pc = codeStart;
+    for (i = 0;  i < numCmds;  i++) {
+	if ((unsigned) *codeDeltaNext == (unsigned) 0xFF) {
+	    codeDeltaNext++;
+	    delta = TclGetInt4AtPtr(codeDeltaNext);
+	    codeDeltaNext += 4;
+	} else {
+	    delta = TclGetInt1AtPtr(codeDeltaNext);
+	    codeDeltaNext++;
+	}
+	codeOffset += delta;
+
+	if ((unsigned) *srcDeltaNext == (unsigned) 0xFF) {
+	    srcDeltaNext++;
+	    delta = TclGetInt4AtPtr(srcDeltaNext);
+	    srcDeltaNext += 4;
+	} else {
+	    delta = TclGetInt1AtPtr(srcDeltaNext);
+	    srcDeltaNext++;
+	}
+	srcOffset += delta;
+
+	if ((unsigned) *srcLengthNext == (unsigned) 0xFF) {
+	    srcLengthNext++;
+	    srcLen = TclGetInt4AtPtr(srcLengthNext);
+	    srcLengthNext += 4;
+	} else {
+	    srcLen = TclGetInt1AtPtr(srcLengthNext);
+	    srcLengthNext++;
+	}
+
+	/*
+	 * Print instructions before command i.
+	 */
+
+	while ((pc-codeStart) < codeOffset) {
+	    Tcl_AppendToObj(bufferObj, "    ", -1);
+	    pc += FormatInstruction(codePtr, pc, bufferObj);
+	}
+
+	Tcl_AppendPrintfToObj(bufferObj, "  Command %d: ", i+1);
+	PrintSourceToObj(bufferObj, (codePtr->source + srcOffset),
+		TclMin(srcLen, 55));
+	Tcl_AppendToObj(bufferObj, "\n", -1);
+    }
+    if (pc < codeLimit) {
+	/*
+	 * Print instructions after the last command.
+	 */
+
+	while (pc < codeLimit) {
+	    Tcl_AppendToObj(bufferObj, "    ", -1);
+	    pc += FormatInstruction(codePtr, pc, bufferObj);
+	}
+    }
+    return bufferObj;
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * FormatInstruction --
+ *
+ *	Appends a representation of a bytecode instruction to a Tcl_Obj.
+ *
+ *----------------------------------------------------------------------
+ */
+
+static int
+FormatInstruction(
+    ByteCode *codePtr,		/* Bytecode containing the instruction. */
+    const unsigned char *pc,	/* Points to first byte of instruction. */
+    Tcl_Obj *bufferObj)		/* Object to append instruction info to. */
+{
+    Proc *procPtr = codePtr->procPtr;
+    unsigned char opCode = *pc;
+    register const InstructionDesc *instDesc = &tclInstructionTable[opCode];
+    unsigned char *codeStart = codePtr->codeStart;
+    unsigned pcOffset = pc - codeStart;
+    int opnd = 0, i, j, numBytes = 1;
+    int localCt = procPtr ? procPtr->numCompiledLocals : 0;
+    CompiledLocal *localPtr = procPtr ? procPtr->firstLocalPtr : NULL;
+    char suffixBuffer[128];	/* Additional info to print after main opcode
+				 * and immediates. */
+    char *suffixSrc = NULL;
+    Tcl_Obj *suffixObj = NULL;
+    AuxData *auxPtr = NULL;
+
+    suffixBuffer[0] = '\0';
+    Tcl_AppendPrintfToObj(bufferObj, "(%u) %s ", pcOffset, instDesc->name);
+    for (i = 0;  i < instDesc->numOperands;  i++) {
+	switch (instDesc->opTypes[i]) {
+	case OPERAND_INT1:
+	    opnd = TclGetInt1AtPtr(pc+numBytes); numBytes++;
+	    if (opCode == INST_JUMP1 || opCode == INST_JUMP_TRUE1
+		    || opCode == INST_JUMP_FALSE1) {
+		sprintf(suffixBuffer, "pc %u", pcOffset+opnd);
+	    }
+	    Tcl_AppendPrintfToObj(bufferObj, "%+d ", opnd);
+	    break;
+	case OPERAND_INT4:
+	    opnd = TclGetInt4AtPtr(pc+numBytes); numBytes += 4;
+	    if (opCode == INST_JUMP4 || opCode == INST_JUMP_TRUE4
+		    || opCode == INST_JUMP_FALSE4) {
+		sprintf(suffixBuffer, "pc %u", pcOffset+opnd);
+	    } else if (opCode == INST_START_CMD) {
+		sprintf(suffixBuffer, "next cmd at pc %u", pcOffset+opnd);
+	    }
+	    Tcl_AppendPrintfToObj(bufferObj, "%+d ", opnd);
+	    break;
+	case OPERAND_UINT1:
+	    opnd = TclGetUInt1AtPtr(pc+numBytes); numBytes++;
+	    if (opCode == INST_PUSH1) {
+		suffixObj = codePtr->objArrayPtr[opnd];
+	    }
+	    Tcl_AppendPrintfToObj(bufferObj, "%u ", (unsigned) opnd);
+	    break;
+	case OPERAND_AUX4:
+	case OPERAND_UINT4:
+	    opnd = TclGetUInt4AtPtr(pc+numBytes); numBytes += 4;
+	    if (opCode == INST_PUSH4) {
+		suffixObj = codePtr->objArrayPtr[opnd];
+	    } else if (opCode == INST_START_CMD && opnd != 1) {
+		sprintf(suffixBuffer+strlen(suffixBuffer),
+			", %u cmds start here", opnd);
+	    }
+	    Tcl_AppendPrintfToObj(bufferObj, "%u ", (unsigned) opnd);
+	    if (instDesc->opTypes[i] == OPERAND_AUX4) {
+		auxPtr = &codePtr->auxDataArrayPtr[opnd];
+	    }
+	    break;
+	case OPERAND_IDX4:
+	    opnd = TclGetInt4AtPtr(pc+numBytes); numBytes += 4;
+	    if (opnd >= -1) {
+		Tcl_AppendPrintfToObj(bufferObj, "%d ", opnd);
+	    } else if (opnd == -2) {
+		Tcl_AppendPrintfToObj(bufferObj, "end ");
+	    } else {
+		Tcl_AppendPrintfToObj(bufferObj, "end-%d ", -2-opnd);
+	    }
+	    break;
+	case OPERAND_LVT1:
+	    opnd = TclGetUInt1AtPtr(pc+numBytes);
+	    numBytes++;
+	    goto printLVTindex;
+	case OPERAND_LVT4:
+	    opnd = TclGetUInt4AtPtr(pc+numBytes);
+	    numBytes += 4;
+	printLVTindex:
+	    if (localPtr != NULL) {
+		if (opnd >= localCt) {
+		    Tcl_Panic("FormatInstruction: bad local var index %u (%u locals)",
+			    (unsigned) opnd, localCt);
+		}
+		for (j = 0;  j < opnd;  j++) {
+		    localPtr = localPtr->nextPtr;
+		}
+		if (TclIsVarTemporary(localPtr)) {
+		    sprintf(suffixBuffer, "temp var %u", (unsigned) opnd);
+		} else {
+		    sprintf(suffixBuffer, "var ");
+		    suffixSrc = localPtr->name;
+		}
+	    }
+	    Tcl_AppendPrintfToObj(bufferObj, "%%v%u ", (unsigned) opnd);
+	    break;
+	case OPERAND_NONE:
+	default:
+	    break;
+	}
+    }
+    if (suffixObj) {
+	const char *bytes;
+	int length;
+
+	Tcl_AppendToObj(bufferObj, "\t# ", -1);
+	bytes = Tcl_GetStringFromObj(codePtr->objArrayPtr[opnd], &length);
+	PrintSourceToObj(bufferObj, bytes, TclMin(length, 40));
+    } else if (suffixBuffer[0]) {
+	Tcl_AppendPrintfToObj(bufferObj, "\t# %s", suffixBuffer);
+	if (suffixSrc) {
+	    PrintSourceToObj(bufferObj, suffixSrc, 40);
+	}
+    }
+    Tcl_AppendToObj(bufferObj, "\n", -1);
+    if (auxPtr && auxPtr->type->printProc) {
+	Tcl_AppendToObj(bufferObj, "\t\t[", -1);
+	auxPtr->type->printProc(auxPtr->clientData, bufferObj, codePtr,
+		pcOffset);
+	Tcl_AppendToObj(bufferObj, "]\n", -1);
+    }
+    return numBytes;
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * TclGetInnerContext --
+ *
+ *	If possible, returns a list capturing the inner context. Otherwise
+ *	return NULL.
+ *
+ *----------------------------------------------------------------------
+ */
+
+Tcl_Obj *
+TclGetInnerContext(
+    Tcl_Interp *interp,
+    const unsigned char *pc,
+    Tcl_Obj **tosPtr)
+{
+    int objc = 0, off = 0;
+    Tcl_Obj *result;
+    Interp *iPtr = (Interp *) interp;
+
+    switch (*pc) {
+    case INST_STR_LEN:
+    case INST_LNOT:
+    case INST_BITNOT:
+    case INST_UMINUS:
+    case INST_UPLUS:
+    case INST_TRY_CVT_TO_NUMERIC:
+    case INST_EXPAND_STKTOP:
+    case INST_EXPR_STK:
+        objc = 1;
+        break;
+
+    case INST_LIST_IN:
+    case INST_LIST_NOT_IN:	/* Basic list containment operators. */
+    case INST_STR_EQ:
+    case INST_STR_NEQ:		/* String (in)equality check */
+    case INST_STR_CMP:		/* String compare. */
+    case INST_STR_INDEX:
+    case INST_STR_MATCH:
+    case INST_REGEXP:
+    case INST_EQ:
+    case INST_NEQ:
+    case INST_LT:
+    case INST_GT:
+    case INST_LE:
+    case INST_GE:
+    case INST_MOD:
+    case INST_LSHIFT:
+    case INST_RSHIFT:
+    case INST_BITOR:
+    case INST_BITXOR:
+    case INST_BITAND:
+    case INST_EXPON:
+    case INST_ADD:
+    case INST_SUB:
+    case INST_DIV:
+    case INST_MULT:
+        objc = 2;
+        break;
+
+    case INST_RETURN_STK:
+        /* early pop. TODO: dig out opt dict too :/ */
+        objc = 1;
+        break;
+
+    case INST_SYNTAX:
+    case INST_RETURN_IMM:
+        objc = 2;
+        break;
+
+    case INST_INVOKE_STK4:
+	objc = TclGetUInt4AtPtr(pc+1);
+        break;
+
+    case INST_INVOKE_STK1:
+	objc = TclGetUInt1AtPtr(pc+1);
+	break;
+    }
+
+    result = iPtr->innerContext;
+    if (Tcl_IsShared(result)) {
+        Tcl_DecrRefCount(result);
+        iPtr->innerContext = result = Tcl_NewListObj(objc + 1, NULL);
+        Tcl_IncrRefCount(result);
+    } else {
+        int len;
+
+        /*
+         * Reset while keeping the list intrep as much as possible.
+         */
+
+	Tcl_ListObjLength(interp, result, &len);
+        Tcl_ListObjReplace(interp, result, 0, len, 0, NULL);
+    }
+    Tcl_ListObjAppendElement(NULL, result, TclNewInstNameObj(*pc));
+
+    for (; objc>0 ; objc--) {
+        Tcl_Obj *objPtr;
+
+        objPtr = tosPtr[1 - objc + off];
+        if (!objPtr) {
+            Tcl_Panic("InnerContext: bad tos -- appending null object");
+        }
+        if ((objPtr->refCount<=0)
+#ifdef TCL_MEM_DEBUG
+                || (objPtr->refCount==0x61616161)
+#endif
+        ) {
+            Tcl_Panic("InnerContext: bad tos -- appending freed object %p",
+                    objPtr);
+        }
+        Tcl_ListObjAppendElement(NULL, result, objPtr);
+    }
+
+    return result;
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * TclNewInstNameObj --
+ *
+ *	Creates a new InstName Tcl_Obj based on the given instruction
+ *
+ *----------------------------------------------------------------------
+ */
+
+Tcl_Obj *
+TclNewInstNameObj(
+    unsigned char inst)
+{
+    Tcl_Obj *objPtr = Tcl_NewObj();
+
+    objPtr->typePtr = &tclInstNameType;
+    objPtr->internalRep.longValue = (long) inst;
+    objPtr->bytes = NULL;
+
+    return objPtr;
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * UpdateStringOfInstName --
+ *
+ *	Update the string representation for an instruction name object.
+ *
+ *----------------------------------------------------------------------
+ */
+
+static void
+UpdateStringOfInstName(
+    Tcl_Obj *objPtr)
+{
+    int inst = objPtr->internalRep.longValue;
+    char *s, buf[20];
+    int len;
+
+    if ((inst < 0) || (inst > LAST_INST_OPCODE)) {
+        sprintf(buf, "inst_%d", inst);
+        s = buf;
+    } else {
+        s = (char *) tclInstructionTable[objPtr->internalRep.longValue].name;
+    }
+    len = strlen(s);
+    objPtr->bytes = ckalloc(len + 1);
+    memcpy(objPtr->bytes, s, len + 1);
+    objPtr->length = len;
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * PrintSourceToObj --
+ *
+ *	Appends a quoted representation of a string to a Tcl_Obj.
+ *
+ *----------------------------------------------------------------------
+ */
+
+static void
+PrintSourceToObj(
+    Tcl_Obj *appendObj,		/* The object to print the source to. */
+    const char *stringPtr,	/* The string to print. */
+    int maxChars)		/* Maximum number of chars to print. */
+{
+    register const char *p;
+    register int i = 0;
+
+    if (stringPtr == NULL) {
+	Tcl_AppendToObj(appendObj, "\"\"", -1);
+	return;
+    }
+
+    Tcl_AppendToObj(appendObj, "\"", -1);
+    p = stringPtr;
+    for (;  (*p != '\0') && (i < maxChars);  p++, i++) {
+	switch (*p) {
+	case '"':
+	    Tcl_AppendToObj(appendObj, "\\\"", -1);
+	    continue;
+	case '\f':
+	    Tcl_AppendToObj(appendObj, "\\f", -1);
+	    continue;
+	case '\n':
+	    Tcl_AppendToObj(appendObj, "\\n", -1);
+	    continue;
+	case '\r':
+	    Tcl_AppendToObj(appendObj, "\\r", -1);
+	    continue;
+	case '\t':
+	    Tcl_AppendToObj(appendObj, "\\t", -1);
+	    continue;
+	case '\v':
+	    Tcl_AppendToObj(appendObj, "\\v", -1);
+	    continue;
+	default:
+	    Tcl_AppendPrintfToObj(appendObj, "%c", *p);
+	    continue;
+	}
+    }
+    Tcl_AppendToObj(appendObj, "\"", -1);
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * Tcl_DisassembleObjCmd --
+ *
+ *	Implementation of the "::tcl::unsupported::disassemble" command. This
+ *	command is not documented, but will disassemble procedures, lambda
+ *	terms and general scripts. Note that will compile terms if necessary
+ *	in order to disassemble them.
+ *
+ *----------------------------------------------------------------------
+ */
+
+int
+Tcl_DisassembleObjCmd(
+    ClientData dummy,		/* Not used. */
+    Tcl_Interp *interp,		/* Current interpreter. */
+    int objc,			/* Number of arguments. */
+    Tcl_Obj *const objv[])	/* Argument objects. */
+{
+    static const char *const types[] = {
+	"lambda", "method", "objmethod", "proc", "script", NULL
+    };
+    enum Types {
+	DISAS_LAMBDA, DISAS_CLASS_METHOD, DISAS_OBJECT_METHOD, DISAS_PROC,
+	DISAS_SCRIPT
+    };
+    int idx, result;
+    Tcl_Obj *codeObjPtr = NULL;
+    Proc *procPtr = NULL;
+    Tcl_HashEntry *hPtr;
+    Object *oPtr;
+
+    if (objc < 2) {
+	Tcl_WrongNumArgs(interp, 1, objv, "type ...");
+	return TCL_ERROR;
+    }
+    if (Tcl_GetIndexFromObj(interp, objv[1], types, "type", 0, &idx)!=TCL_OK){
+	return TCL_ERROR;
+    }
+
+    switch ((enum Types) idx) {
+    case DISAS_LAMBDA: {
+	Command cmd;
+	Tcl_Obj *nsObjPtr;
+	Tcl_Namespace *nsPtr;
+
+	/*
+	 * Compile (if uncompiled) and disassemble a lambda term.
+	 */
+
+	if (objc != 3) {
+	    Tcl_WrongNumArgs(interp, 2, objv, "lambdaTerm");
+	    return TCL_ERROR;
+	}
+	if (objv[2]->typePtr == &tclLambdaType) {
+	    procPtr = objv[2]->internalRep.twoPtrValue.ptr1;
+	}
+	if (procPtr == NULL || procPtr->iPtr != (Interp *) interp) {
+	    result = tclLambdaType.setFromAnyProc(interp, objv[2]);
+	    if (result != TCL_OK) {
+		return result;
+	    }
+	    procPtr = objv[2]->internalRep.twoPtrValue.ptr1;
+	}
+
+	memset(&cmd, 0, sizeof(Command));
+	nsObjPtr = objv[2]->internalRep.twoPtrValue.ptr2;
+	result = TclGetNamespaceFromObj(interp, nsObjPtr, &nsPtr);
+	if (result != TCL_OK) {
+	    return result;
+	}
+	cmd.nsPtr = (Namespace *) nsPtr;
+	procPtr->cmdPtr = &cmd;
+	result = TclPushProcCallFrame(procPtr, interp, objc, objv, 1);
+	if (result != TCL_OK) {
+	    return result;
+	}
+	TclPopStackFrame(interp);
+	codeObjPtr = procPtr->bodyPtr;
+	break;
+    }
+    case DISAS_PROC:
+	if (objc != 3) {
+	    Tcl_WrongNumArgs(interp, 2, objv, "procName");
+	    return TCL_ERROR;
+	}
+
+	procPtr = TclFindProc((Interp *) interp, TclGetString(objv[2]));
+	if (procPtr == NULL) {
+	    Tcl_SetObjResult(interp, Tcl_ObjPrintf(
+		    "\"%s\" isn't a procedure", TclGetString(objv[2])));
+	    Tcl_SetErrorCode(interp, "TCL", "LOOKUP", "PROC",
+		    TclGetString(objv[2]), NULL);
+	    return TCL_ERROR;
+	}
+
+	/*
+	 * Compile (if uncompiled) and disassemble a procedure.
+	 */
+
+	result = TclPushProcCallFrame(procPtr, interp, 2, objv+1, 1);
+	if (result != TCL_OK) {
+	    return result;
+	}
+	TclPopStackFrame(interp);
+	codeObjPtr = procPtr->bodyPtr;
+	break;
+    case DISAS_SCRIPT:
+	/*
+	 * Compile and disassemble a script.
+	 */
+
+	if (objc != 3) {
+	    Tcl_WrongNumArgs(interp, 2, objv, "script");
+	    return TCL_ERROR;
+	}
+	if ((objv[2]->typePtr != &tclByteCodeType)
+		&& (TclSetByteCodeFromAny(interp, objv[2], NULL, NULL) != TCL_OK)) {
+	    return TCL_ERROR;
+	}
+	codeObjPtr = objv[2];
+	break;
+
+    case DISAS_CLASS_METHOD:
+	if (objc != 4) {
+	    Tcl_WrongNumArgs(interp, 2, objv, "className methodName");
+	    return TCL_ERROR;
+	}
+
+	/*
+	 * Look up the body of a class method.
+	 */
+
+	oPtr = (Object *) Tcl_GetObjectFromObj(interp, objv[2]);
+	if (oPtr == NULL) {
+	    return TCL_ERROR;
+	}
+	if (oPtr->classPtr == NULL) {
+	    Tcl_SetObjResult(interp, Tcl_ObjPrintf(
+		    "\"%s\" is not a class", TclGetString(objv[2])));
+	    Tcl_SetErrorCode(interp, "TCL", "LOOKUP", "CLASS",
+		    TclGetString(objv[2]), NULL);
+	    return TCL_ERROR;
+	}
+	hPtr = Tcl_FindHashEntry(&oPtr->classPtr->classMethods,
+		(char *) objv[3]);
+	goto methodBody;
+    case DISAS_OBJECT_METHOD:
+	if (objc != 4) {
+	    Tcl_WrongNumArgs(interp, 2, objv, "objectName methodName");
+	    return TCL_ERROR;
+	}
+
+	/*
+	 * Look up the body of an instance method.
+	 */
+
+	oPtr = (Object *) Tcl_GetObjectFromObj(interp, objv[2]);
+	if (oPtr == NULL) {
+	    return TCL_ERROR;
+	}
+	if (oPtr->methodsPtr == NULL) {
+	    goto unknownMethod;
+	}
+	hPtr = Tcl_FindHashEntry(oPtr->methodsPtr, (char *) objv[3]);
+
+	/*
+	 * Compile (if necessary) and disassemble a method body.
+	 */
+
+    methodBody:
+	if (hPtr == NULL) {
+	unknownMethod:
+	    Tcl_SetObjResult(interp, Tcl_ObjPrintf(
+		    "unknown method \"%s\"", TclGetString(objv[3])));
+	    Tcl_SetErrorCode(interp, "TCL", "LOOKUP", "METHOD",
+		    TclGetString(objv[3]), NULL);
+	    return TCL_ERROR;
+	}
+	procPtr = TclOOGetProcFromMethod(Tcl_GetHashValue(hPtr));
+	if (procPtr == NULL) {
+	    Tcl_SetObjResult(interp, Tcl_NewStringObj(
+		    "body not available for this kind of method", -1));
+	    Tcl_SetErrorCode(interp, "TCL", "OPERATION", "DISASSEMBLE",
+		    "METHODTYPE", NULL);
+	    return TCL_ERROR;
+	}
+	if (procPtr->bodyPtr->typePtr != &tclByteCodeType) {
+	    Command cmd;
+
+	    /*
+	     * Yes, this is ugly, but we need to pass the namespace in to the
+	     * compiler in two places.
+	     */
+
+	    cmd.nsPtr = (Namespace *) oPtr->namespacePtr;
+	    procPtr->cmdPtr = &cmd;
+	    result = TclProcCompileProc(interp, procPtr, procPtr->bodyPtr,
+		    (Namespace *) oPtr->namespacePtr, "body of method",
+		    TclGetString(objv[3]));
+	    procPtr->cmdPtr = NULL;
+	    if (result != TCL_OK) {
+		return result;
+	    }
+	}
+	codeObjPtr = procPtr->bodyPtr;
+	break;
+    default:
+	CLANG_ASSERT(0);
+    }
+
+    /*
+     * Do the actual disassembly.
+     */
+
+    if (((ByteCode *) codeObjPtr->internalRep.twoPtrValue.ptr1)->flags
+	    & TCL_BYTECODE_PRECOMPILED) {
+	Tcl_SetObjResult(interp, Tcl_NewStringObj(
+		"may not disassemble prebuilt bytecode", -1));
+	Tcl_SetErrorCode(interp, "TCL", "OPERATION", "DISASSEMBLE",
+		"BYTECODE", NULL);
+	return TCL_ERROR;
+    }
+    Tcl_SetObjResult(interp, TclDisassembleByteCodeObj(codeObjPtr));
+    return TCL_OK;
+}
+
+/*
+ * Local Variables:
+ * mode: c
+ * c-basic-offset: 4
+ * fill-column: 78
+ * tab-width: 8
+ * End:
+ */
diff --git a/generic/tclProc.c b/generic/tclProc.c
index 18985a1..23d8e70 100644
--- a/generic/tclProc.c
+++ b/generic/tclProc.c
@@ -15,7 +15,6 @@
 
 #include "tclInt.h"
 #include "tclCompile.h"
-#include "tclOOInt.h"
 
 /*
  * Variables that are part of the [apply] command implementation and which
@@ -41,9 +40,6 @@ static void		InitResolvedLocals(Tcl_Interp *interp,
 			    ByteCode *codePtr, Var *defPtr,
 			    Namespace *nsPtr);
 static void		InitLocalCache(Proc *procPtr);
-static int		PushProcCallFrame(ClientData clientData,
-			    register Tcl_Interp *interp, int objc,
-			    Tcl_Obj *const objv[], int isLambda);
 static void		ProcBodyDup(Tcl_Obj *srcPtr, Tcl_Obj *dupPtr);
 static void		ProcBodyFree(Tcl_Obj *objPtr);
 static int		ProcWrongNumArgs(Tcl_Interp *interp, int skip);
@@ -95,7 +91,7 @@ static const Tcl_ObjType levelReferenceType = {
  * will execute within.
  */
 
-static const Tcl_ObjType lambdaType = {
+const Tcl_ObjType tclLambdaType = {
     "lambdaExpr",		/* name */
     FreeLambdaInternalRep,	/* freeIntRepProc */
     DupLambdaInternalRep,	/* dupIntRepProc */
@@ -221,7 +217,7 @@ Tcl_ProcObjCmd(
      *
      * This code is nearly identical to the #280 code in SetLambdaFromAny, see
      * this file. The differences are the different index of the body in the
-     * line array of the context, and the lamdba code requires some special
+     * line array of the context, and the lambda code requires some special
      * processing. Find a way to factor the common elements into a single
      * function.
      */
@@ -1571,7 +1567,7 @@ InitArgsAndLocals(
 /*
  *----------------------------------------------------------------------
  *
- * PushProcCallFrame --
+ * TclPushProcCallFrame --
  *
  *	Compiles a proc body if necessary, then pushes a CallFrame suitable
  *	for executing it.
@@ -1586,8 +1582,8 @@ InitArgsAndLocals(
  *----------------------------------------------------------------------
  */
 
-static int
-PushProcCallFrame(
+int
+TclPushProcCallFrame(
     ClientData clientData,	/* Record describing procedure to be
 				 * interpreted. */
     register Tcl_Interp *interp,/* Interpreter in which procedure was
@@ -1708,7 +1704,7 @@ TclNRInterpProc(
 				 * procedure. */
     Tcl_Obj *const objv[])	/* Argument value objects. */
 {
-    int result = PushProcCallFrame(clientData, interp, objc, objv,
+    int result = TclPushProcCallFrame(clientData, interp, objc, objv,
 	    /*isLambda*/ 0);
 
     if (result != TCL_OK) {
@@ -2451,7 +2447,7 @@ DupLambdaInternalRep(
 
     procPtr->refCount++;
     Tcl_IncrRefCount(nsObjPtr);
-    copyPtr->typePtr = &lambdaType;
+    copyPtr->typePtr = &tclLambdaType;
 }
 
 static void
@@ -2488,7 +2484,7 @@ SetLambdaFromAny(
 
     /*
      * Convert objPtr to list type first; if it cannot be converted, or if its
-     * length is not 2, then it cannot be converted to lambdaType.
+     * length is not 2, then it cannot be converted to tclLambdaType.
      */
 
     result = TclListObjGetElements(NULL, objPtr, &objc, &objv);
@@ -2634,14 +2630,14 @@ SetLambdaFromAny(
     /*
      * Free the list internalrep of objPtr - this will free argsPtr, but
      * bodyPtr retains a reference from the Proc structure. Then finish the
-     * conversion to lambdaType.
+     * conversion to tclLambdaType.
      */
 
     TclFreeIntRep(objPtr);
 
     objPtr->internalRep.twoPtrValue.ptr1 = procPtr;
     objPtr->internalRep.twoPtrValue.ptr2 = nsObjPtr;
-    objPtr->typePtr = &lambdaType;
+    objPtr->typePtr = &tclLambdaType;
     return TCL_OK;
 }
 
@@ -2692,12 +2688,12 @@ TclNRApplyObjCmd(
     }
 
     /*
-     * Set lambdaPtr, convert it to lambdaType in the current interp if
+     * Set lambdaPtr, convert it to tclLambdaType in the current interp if
      * necessary.
      */
 
     lambdaPtr = objv[1];
-    if (lambdaPtr->typePtr == &lambdaType) {
+    if (lambdaPtr->typePtr == &tclLambdaType) {
 	procPtr = lambdaPtr->internalRep.twoPtrValue.ptr1;
     }
 
@@ -2775,7 +2771,7 @@ TclNRApplyObjCmd(
     }
     extraPtr->isRootEnsemble = isRootEnsemble;
 
-    result = PushProcCallFrame(procPtr, interp, objc, objv, 1);
+    result = TclPushProcCallFrame(procPtr, interp, objc, objv, 1);
     if (result == TCL_OK) {
 	TclNRAddCallback(interp, ApplyNR2, extraPtr, NULL, NULL, NULL);
 	result = TclNRInterpProcCore(interp, objv[1], 2, &MakeLambdaError);
@@ -2835,234 +2831,6 @@ MakeLambdaError(
 }
 
 /*
- *----------------------------------------------------------------------
- *
- * Tcl_DisassembleObjCmd --
- *
- *	Implementation of the "::tcl::unsupported::disassemble" command. This
- *	command is not documented, but will disassemble procedures, lambda
- *	terms and general scripts. Note that will compile terms if necessary
- *	in order to disassemble them.
- *
- *----------------------------------------------------------------------
- */
-
-int
-Tcl_DisassembleObjCmd(
-    ClientData dummy,		/* Not used. */
-    Tcl_Interp *interp,		/* Current interpreter. */
-    int objc,			/* Number of arguments. */
-    Tcl_Obj *const objv[])	/* Argument objects. */
-{
-    static const char *const types[] = {
-	"lambda", "method", "objmethod", "proc", "script", NULL
-    };
-    enum Types {
-	DISAS_LAMBDA, DISAS_CLASS_METHOD, DISAS_OBJECT_METHOD, DISAS_PROC,
-	DISAS_SCRIPT
-    };
-    int idx, result;
-    Tcl_Obj *codeObjPtr = NULL;
-    Proc *procPtr = NULL;
-    Tcl_HashEntry *hPtr;
-    Object *oPtr;
-
-    if (objc < 2) {
-	Tcl_WrongNumArgs(interp, 1, objv, "type ...");
-	return TCL_ERROR;
-    }
-    if (Tcl_GetIndexFromObj(interp, objv[1], types, "type", 0, &idx)!=TCL_OK){
-	return TCL_ERROR;
-    }
-
-    switch ((enum Types) idx) {
-    case DISAS_LAMBDA: {
-	Command cmd;
-	Tcl_Obj *nsObjPtr;
-	Tcl_Namespace *nsPtr;
-
-	/*
-	 * Compile (if uncompiled) and disassemble a lambda term.
-	 */
-
-	if (objc != 3) {
-	    Tcl_WrongNumArgs(interp, 2, objv, "lambdaTerm");
-	    return TCL_ERROR;
-	}
-	if (objv[2]->typePtr == &lambdaType) {
-	    procPtr = objv[2]->internalRep.twoPtrValue.ptr1;
-	}
-	if (procPtr == NULL || procPtr->iPtr != (Interp *) interp) {
-	    result = SetLambdaFromAny(interp, objv[2]);
-	    if (result != TCL_OK) {
-		return result;
-	    }
-	    procPtr = objv[2]->internalRep.twoPtrValue.ptr1;
-	}
-
-	memset(&cmd, 0, sizeof(Command));
-	nsObjPtr = objv[2]->internalRep.twoPtrValue.ptr2;
-	result = TclGetNamespaceFromObj(interp, nsObjPtr, &nsPtr);
-	if (result != TCL_OK) {
-	    return result;
-	}
-	cmd.nsPtr = (Namespace *) nsPtr;
-	procPtr->cmdPtr = &cmd;
-	result = PushProcCallFrame(procPtr, interp, objc, objv, 1);
-	if (result != TCL_OK) {
-	    return result;
-	}
-	TclPopStackFrame(interp);
-	codeObjPtr = procPtr->bodyPtr;
-	break;
-    }
-    case DISAS_PROC:
-	if (objc != 3) {
-	    Tcl_WrongNumArgs(interp, 2, objv, "procName");
-	    return TCL_ERROR;
-	}
-
-	procPtr = TclFindProc((Interp *) interp, TclGetString(objv[2]));
-	if (procPtr == NULL) {
-	    Tcl_SetObjResult(interp, Tcl_ObjPrintf(
-		    "\"%s\" isn't a procedure", TclGetString(objv[2])));
-	    Tcl_SetErrorCode(interp, "TCL", "LOOKUP", "PROC",
-		    TclGetString(objv[2]), NULL);
-	    return TCL_ERROR;
-	}
-
-	/*
-	 * Compile (if uncompiled) and disassemble a procedure.
-	 */
-
-	result = PushProcCallFrame(procPtr, interp, 2, objv+1, 1);
-	if (result != TCL_OK) {
-	    return result;
-	}
-	TclPopStackFrame(interp);
-	codeObjPtr = procPtr->bodyPtr;
-	break;
-    case DISAS_SCRIPT:
-	/*
-	 * Compile and disassemble a script.
-	 */
-
-	if (objc != 3) {
-	    Tcl_WrongNumArgs(interp, 2, objv, "script");
-	    return TCL_ERROR;
-	}
-	if ((objv[2]->typePtr != &tclByteCodeType)
-		&& (TclSetByteCodeFromAny(interp, objv[2], NULL, NULL) != TCL_OK)) {
-	    return TCL_ERROR;
-	}
-	codeObjPtr = objv[2];
-	break;
-
-    case DISAS_CLASS_METHOD:
-	if (objc != 4) {
-	    Tcl_WrongNumArgs(interp, 2, objv, "className methodName");
-	    return TCL_ERROR;
-	}
-
-	/*
-	 * Look up the body of a class method.
-	 */
-
-	oPtr = (Object *) Tcl_GetObjectFromObj(interp, objv[2]);
-	if (oPtr == NULL) {
-	    return TCL_ERROR;
-	}
-	if (oPtr->classPtr == NULL) {
-	    Tcl_SetObjResult(interp, Tcl_ObjPrintf(
-		    "\"%s\" is not a class", TclGetString(objv[2])));
-	    Tcl_SetErrorCode(interp, "TCL", "LOOKUP", "CLASS",
-		    TclGetString(objv[2]), NULL);
-	    return TCL_ERROR;
-	}
-	hPtr = Tcl_FindHashEntry(&oPtr->classPtr->classMethods,
-		(char *) objv[3]);
-	goto methodBody;
-    case DISAS_OBJECT_METHOD:
-	if (objc != 4) {
-	    Tcl_WrongNumArgs(interp, 2, objv, "objectName methodName");
-	    return TCL_ERROR;
-	}
-
-	/*
-	 * Look up the body of an instance method.
-	 */
-
-	oPtr = (Object *) Tcl_GetObjectFromObj(interp, objv[2]);
-	if (oPtr == NULL) {
-	    return TCL_ERROR;
-	}
-	if (oPtr->methodsPtr == NULL) {
-	    goto unknownMethod;
-	}
-	hPtr = Tcl_FindHashEntry(oPtr->methodsPtr, (char *) objv[3]);
-
-	/*
-	 * Compile (if necessary) and disassemble a method body.
-	 */
-
-    methodBody:
-	if (hPtr == NULL) {
-	unknownMethod:
-	    Tcl_SetObjResult(interp, Tcl_ObjPrintf(
-		    "unknown method \"%s\"", TclGetString(objv[3])));
-	    Tcl_SetErrorCode(interp, "TCL", "LOOKUP", "METHOD",
-		    TclGetString(objv[3]), NULL);
-	    return TCL_ERROR;
-	}
-	procPtr = TclOOGetProcFromMethod(Tcl_GetHashValue(hPtr));
-	if (procPtr == NULL) {
-	    Tcl_SetObjResult(interp, Tcl_NewStringObj(
-		    "body not available for this kind of method", -1));
-	    Tcl_SetErrorCode(interp, "TCL", "OPERATION", "DISASSEMBLE",
-		    "METHODTYPE", NULL);
-	    return TCL_ERROR;
-	}
-	if (procPtr->bodyPtr->typePtr != &tclByteCodeType) {
-	    Command cmd;
-
-	    /*
-	     * Yes, this is ugly, but we need to pass the namespace in to the
-	     * compiler in two places.
-	     */
-
-	    cmd.nsPtr = (Namespace *) oPtr->namespacePtr;
-	    procPtr->cmdPtr = &cmd;
-	    result = TclProcCompileProc(interp, procPtr, procPtr->bodyPtr,
-		    (Namespace *) oPtr->namespacePtr, "body of method",
-		    TclGetString(objv[3]));
-	    procPtr->cmdPtr = NULL;
-	    if (result != TCL_OK) {
-		return result;
-	    }
-	}
-	codeObjPtr = procPtr->bodyPtr;
-	break;
-    default:
-	CLANG_ASSERT(0);
-    }
-
-    /*
-     * Do the actual disassembly.
-     */
-
-    if (((ByteCode *) codeObjPtr->internalRep.twoPtrValue.ptr1)->flags
-	    & TCL_BYTECODE_PRECOMPILED) {
-	Tcl_SetObjResult(interp, Tcl_NewStringObj(
-		"may not disassemble prebuilt bytecode", -1));
-	Tcl_SetErrorCode(interp, "TCL", "OPERATION", "DISASSEMBLE",
-		"BYTECODE", NULL);
-	return TCL_ERROR;
-    }
-    Tcl_SetObjResult(interp, TclDisassembleByteCodeObj(codeObjPtr));
-    return TCL_OK;
-}
-
-/*
  * Local Variables:
  * mode: c
  * c-basic-offset: 4