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Overview
Comment:isolate the compiler/engine subsystem - preparing to move them out of generic and permit plugging in other compiler/engines
Downloads: Tarball | ZIP archive | SQL archive
Timelines: family | ancestors | mig-no280-mistake
Files: files | file ages | folders
SHA1: 563e43ef46c9da4c83dc35b0906800fe30520a9d
User & Date: mig 2013-01-19 04:02:51
Context
2013-01-19
04:02
isolate the compiler/engine subsystem - preparing to move them out of generic and permit plugging in... Closed-Leaf check-in: 563e43ef46 user: mig tags: mig-no280-mistake
2013-01-18
17:11
remove stray tip280 remains Closed-Leaf check-in: 0e374a646e user: mig tags: mig-no280
Changes
Hide Diffs Unified Diffs Ignore Whitespace Patch

Changes to generic/tclAssembly.c.

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 *-   dictFirst, dictNext, dictDone
 *-   dictUpdateStart, dictUpdateEnd
 *-   jumpTable testing
 *-   syntax (?)
 *-   returnCodeBranch
 */

#include "tclInt.h"
#include "tclCompile.h"
#include "tclOOInt.h"

/*
 * Structure that represents a range of instructions in the bytecode.
 */

typedef struct CodeRange {






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 *-   dictFirst, dictNext, dictDone
 *-   dictUpdateStart, dictUpdateEnd
 *-   jumpTable testing
 *-   syntax (?)
 *-   returnCodeBranch
 */

#include "tclEngineInt.h"

#include "tclOOInt.h"

/*
 * Structure that represents a range of instructions in the bytecode.
 */

typedef struct CodeRange {

Changes to generic/tclBasic.c.

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 * Copyright (c) 2008 Miguel Sofer <[email protected]>
 *
 * 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 "tclOOInt.h"

#include "tclCompile.h"
#include "tommath.h"
#include <math.h>
#include "tclNRE.h"

#define INTERP_STACK_INITIAL_SIZE 2000
#define CORO_STACK_INITIAL_SIZE    200

................................................................................
			    Tcl_Obj *const objv[], int lookup);
static void		MathFuncWrongNumArgs(Tcl_Interp *interp, int expected,
			    int actual, Tcl_Obj *const *objv);
static Tcl_NRPostProc	NRCoroutineCallerCallback;
static Tcl_NRPostProc	NRCoroutineExitCallback;
static int NRCommand(ClientData data[], Tcl_Interp *interp, int result);
static int NRRoot(ClientData data[], Tcl_Interp *interp, int result);
#if !NRE_STACK_DEBUG
static Tcl_NRPostProc NRStackBottom;
#endif

static Tcl_NRPostProc	NRRunObjProc;
static Tcl_ObjCmdProc	OldMathFuncProc;
static void		OldMathFuncDeleteProc(ClientData clientData);
static void		ProcessUnexpectedResult(Tcl_Interp *interp,
			    int returnCode);
static int		RewindCoroutine(CoroutineData *corPtr, int result);
................................................................................
    Tcl_CreateObjCommand(interp, "::tcl::Bgerror",
	    TclDefaultBgErrorHandlerObjCmd, NULL, NULL);

    /*
     * Create unsupported commands for debugging bytecode and objects.
     */

    Tcl_CreateObjCommand(interp, "::tcl::unsupported::disassemble",
	    Tcl_DisassembleObjCmd, NULL, NULL);
    Tcl_CreateObjCommand(interp, "::tcl::unsupported::representation",
	    Tcl_RepresentationCmd, NULL, NULL);

    /* Adding the bytecode assembler command */
    cmdPtr = (Command *) Tcl_NRCreateCommand(interp,
            "::tcl::unsupported::assemble", Tcl_AssembleObjCmd,
            TclNRAssembleObjCmd, NULL, NULL);
................................................................................
    return result;
}

void
TclNRSetRoot(
    Tcl_Interp *interp)
{
#if NRE_STACK_DEBUG
    int first = (TOP_CB(interp) == NULL);
#else
    int first = ((TOP_CB(interp) == NULL) ||
            ((TOP_CB(interp)->procPtr == NRStackBottom) &&
                    (TOP_CB(interp)->data[0] == NULL)));
#endif
    
    if (!first) {
        TclNRAddCallback(interp, NRRoot, NULL, NULL, NULL, NULL);
    }
}

static int
................................................................................
TclPushTailcallPoint(
    Tcl_Interp *interp)
{
    TclNRAddCallback(interp, NRCommand, NULL, NULL, NULL, NULL);
    ((Interp *) interp)->numLevels++;
}

#if !NRE_STACK_DEBUG
static int
NRStackBottom(
    ClientData data[],
    Tcl_Interp *interp,
    int result)
{
    Interp *iPtr = (Interp *) interp;
    ExecEnv *eePtr = iPtr->execEnvPtr;
    NRE_stack *this = eePtr->NRStack;
    NRE_stack *prev = data[0];

    if (!prev) {
        /* empty stack, free it */
        ckfree(this);
        eePtr->NRStack = NULL;
        TOP_CB(interp) = NULL;
        return result;
    }
    
    /*
     * Go back to the previous stack.
     */

    eePtr->NRStack = prev;
    eePtr->callbackPtr = &prev->items[NRE_STACK_SIZE-1];
    
    /*
     * Keep this stack in reserve. If this one had a successor, free that one:
     * we always keep just one in reserve. 
     */
    
    if (this->next) {
        ckfree (this->next);
        this->next = NULL;
    }

    return result;
}

int level = 0;
    
NRE_callback *
TclNewCallback(
    Tcl_Interp *interp)
{
    Interp *iPtr = (Interp *) interp;
    ExecEnv *eePtr = iPtr->execEnvPtr;
    NRE_stack *this = eePtr->NRStack, *orig;

    if (eePtr->callbackPtr &&
            (eePtr->callbackPtr < &this->items[NRE_STACK_SIZE-1])) {
        stackReady:
        return ++eePtr->callbackPtr;
    }

    if (!eePtr->callbackPtr) {
        this = NULL;
    }
    orig = this;
    
    if (this && this->next) {
        this = this->next;
    } else {
        this = (NRE_stack *) ckalloc(sizeof(NRE_stack));
        this->next = NULL;
    }
    eePtr->NRStack = this;
    eePtr->callbackPtr = &this->items[-1];
    TclNRAddCallback(interp, NRStackBottom, orig, NULL, NULL, NULL);

    NRE_ASSERT(eePtr->callbackPtr == &this->items[0]);

    goto stackReady;
}

NRE_callback *
TclPopCallback(
    Tcl_Interp *interp)
{
    return ((Interp *)interp)->execEnvPtr->callbackPtr--;
}

NRE_callback *
TclNextCallback(
    NRE_callback *cbPtr)
{

    if (cbPtr->procPtr == NRStackBottom) {
        NRE_stack *prev = cbPtr->data[0];

        if (!prev) {
            return NULL;
        }
        cbPtr = &prev->items[NRE_STACK_SIZE];
    }
    return --cbPtr;
}

#endif
void
TclSetTailcall(
    Tcl_Interp *interp,
    Tcl_Obj *listPtr)
{
    /*
     * Find the splicing spot: right before the NRCommand of the thing






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 * Copyright (c) 2008 Miguel Sofer <[email protected]>
 *
 * 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 "tclEngine.h"

#include "tclOOInt.h"
#include "tommath.h"
#include <math.h>
#include "tclNRE.h"

#define INTERP_STACK_INITIAL_SIZE 2000
#define CORO_STACK_INITIAL_SIZE    200

................................................................................
			    Tcl_Obj *const objv[], int lookup);
static void		MathFuncWrongNumArgs(Tcl_Interp *interp, int expected,
			    int actual, Tcl_Obj *const *objv);
static Tcl_NRPostProc	NRCoroutineCallerCallback;
static Tcl_NRPostProc	NRCoroutineExitCallback;
static int NRCommand(ClientData data[], Tcl_Interp *interp, int result);
static int NRRoot(ClientData data[], Tcl_Interp *interp, int result);




static Tcl_NRPostProc	NRRunObjProc;
static Tcl_ObjCmdProc	OldMathFuncProc;
static void		OldMathFuncDeleteProc(ClientData clientData);
static void		ProcessUnexpectedResult(Tcl_Interp *interp,
			    int returnCode);
static int		RewindCoroutine(CoroutineData *corPtr, int result);
................................................................................
    Tcl_CreateObjCommand(interp, "::tcl::Bgerror",
	    TclDefaultBgErrorHandlerObjCmd, NULL, NULL);

    /*
     * Create unsupported commands for debugging bytecode and objects.
     */



    Tcl_CreateObjCommand(interp, "::tcl::unsupported::representation",
	    Tcl_RepresentationCmd, NULL, NULL);

    /* Adding the bytecode assembler command */
    cmdPtr = (Command *) Tcl_NRCreateCommand(interp,
            "::tcl::unsupported::assemble", Tcl_AssembleObjCmd,
            TclNRAssembleObjCmd, NULL, NULL);
................................................................................
    return result;
}

void
TclNRSetRoot(
    Tcl_Interp *interp)
{

    int first = (TOP_CB(interp) == NULL);





    
    if (!first) {
        TclNRAddCallback(interp, NRRoot, NULL, NULL, NULL, NULL);
    }
}

static int
................................................................................
TclPushTailcallPoint(
    Tcl_Interp *interp)
{
    TclNRAddCallback(interp, NRCommand, NULL, NULL, NULL, NULL);
    ((Interp *) interp)->numLevels++;
}





































































































void
TclSetTailcall(
    Tcl_Interp *interp,
    Tcl_Obj *listPtr)
{
    /*
     * Find the splicing spot: right before the NRCommand of the thing

Changes to generic/tclCompCmds.c.

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 * Copyright (c) 2002 ActiveState Corporation.
 * Copyright (c) 2004-2006 by 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 <assert.h>

/*
 * Prototypes for procedures defined later in this file:
 */

static ClientData	DupDictUpdateInfo(ClientData clientData);






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 * Copyright (c) 2002 ActiveState Corporation.
 * Copyright (c) 2004-2006 by 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 "tclEngineInt.h"

#include <assert.h>

/*
 * Prototypes for procedures defined later in this file:
 */

static ClientData	DupDictUpdateInfo(ClientData clientData);

Changes to generic/tclCompCmdsSZ.c.

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 * Copyright (c) 2002 ActiveState Corporation.
 * Copyright (c) 2004-2010 by 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"

/*
 * Prototypes for procedures defined later in this file:
 */

static ClientData	DupJumptableInfo(ClientData clientData);
static void		FreeJumptableInfo(ClientData clientData);






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 * Copyright (c) 2002 ActiveState Corporation.
 * Copyright (c) 2004-2010 by 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 "tclEngineInt.h"


/*
 * Prototypes for procedures defined later in this file:
 */

static ClientData	DupJumptableInfo(ClientData clientData);
static void		FreeJumptableInfo(ClientData clientData);

Added generic/tclCompEnsemble.c.




































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































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#include "tclEngineInt.h"

/*
 * How to compile a subcommand using its own command compiler. To do that, we
 * have to perform some trickery to rewrite the arguments, as compilers *must*
 * have parse tokens that refer to addresses in the original script.
 */

int
TclCompileToCompiledCommand(
    Tcl_Interp *interp,
    Tcl_Parse *parsePtr,
    int depth,
    Command *cmdPtr,
    CompileEnv *envPtr)		/* Holds resulting instructions. */
{
    Tcl_Parse synthetic;
    Tcl_Token *tokenPtr;
    int result, i;
    int savedNumCmds = envPtr->numCommands;
    int savedStackDepth = envPtr->currStackDepth;
    unsigned savedCodeNext = envPtr->codeNext - envPtr->codeStart;

    if (cmdPtr->compileProc == NULL) {
	return TCL_ERROR;
    }

    TclParseInit(interp, NULL, 0, &synthetic);
    synthetic.numWords = parsePtr->numWords - depth + 1;
    TclGrowParseTokenArray(&synthetic, 2);
    synthetic.numTokens = 2;

    /*
     * Now we have the space to work in, install something rewritten. The
     * first word will "officially" be the bytes of the structured ensemble
     * name. That's technically wrong, but nobody will care; we just need
     * *something* here...
     */

    synthetic.tokenPtr[0].type = TCL_TOKEN_SIMPLE_WORD;
    synthetic.tokenPtr[0].start = parsePtr->tokenPtr[0].start;
    synthetic.tokenPtr[0].numComponents = 1;
    synthetic.tokenPtr[1].type = TCL_TOKEN_TEXT;
    synthetic.tokenPtr[1].start = parsePtr->tokenPtr[0].start;
    synthetic.tokenPtr[1].numComponents = 0;
    for (i=0,tokenPtr=parsePtr->tokenPtr ; i<depth ; i++) {
	int sclen = (tokenPtr->start - synthetic.tokenPtr[0].start)
		+ tokenPtr->size;

	synthetic.tokenPtr[0].size = sclen;
	synthetic.tokenPtr[1].size = sclen;
	tokenPtr = TokenAfter(tokenPtr);
    }

    /*
     * Copy over the real argument tokens.
     */

    for (i=1; i<synthetic.numWords; i++) {
	int toCopy;

	toCopy = tokenPtr->numComponents + 1;
	TclGrowParseTokenArray(&synthetic, toCopy);
	memcpy(synthetic.tokenPtr + synthetic.numTokens, tokenPtr,
		sizeof(Tcl_Token) * toCopy);
	synthetic.numTokens += toCopy;
	tokenPtr = TokenAfter(tokenPtr);
    }

    /*
     * Hand off compilation to the subcommand compiler. At last!
     */

    result = cmdPtr->compileProc(interp, &synthetic, cmdPtr, envPtr);

    /*
     * If our target fails to compile, revert the number of commands and the
     * pointer to the place to issue the next instruction. [Bug 3600328]
     */

    if (result != TCL_OK) {
	envPtr->numCommands = savedNumCmds;
	envPtr->currStackDepth = savedStackDepth;
	envPtr->codeNext = envPtr->codeStart + savedCodeNext;
    }

    /*
     * Clean up if necessary.
     */

    Tcl_FreeParse(&synthetic);
    return result;
}

/*
 * How to compile a subcommand to a _replacing_ invoke of its implementation
 * command.
 */

void
TclCompileToInvokedCommand(
    Tcl_Interp *interp,
    Tcl_Parse *parsePtr,
    Tcl_Obj *replacements,
    Command *cmdPtr,
    CompileEnv *envPtr)		/* Holds resulting instructions. */
{
    Tcl_Token *tokPtr;
    Tcl_Obj *objPtr, **words;
    char *bytes;
    int length, i, numWords, cmdLit;

    /*
     * Push the words of the command. Take care; the command words may be
     * scripts that have backslashes in them, and [info frame 0] can see the
     * difference. Hence the call to TclContinuationsEnterDerived...
     */

    Tcl_ListObjGetElements(NULL, replacements, &numWords, &words);
    for (i=0,tokPtr=parsePtr->tokenPtr ; i<parsePtr->numWords ; i++) {
	if (i > 0 && i < numWords+1) {
	    bytes = Tcl_GetStringFromObj(words[i-1], &length);
	    PushLiteral(envPtr, bytes, length);
	} else if (tokPtr->type == TCL_TOKEN_SIMPLE_WORD) {
	    int literal = TclRegisterNewLiteral(envPtr,
		    tokPtr[1].start, tokPtr[1].size);

	    TclEmitPush(literal, envPtr);
	} else {
	    CompileTokens(envPtr, tokPtr, interp);
	}
	tokPtr = TokenAfter(tokPtr);
    }

    /*
     * Push the name of the command we're actually dispatching to as part of
     * the implementation.
     */

    objPtr = Tcl_NewObj();
    Tcl_GetCommandFullName(interp, (Tcl_Command) cmdPtr, objPtr);
    bytes = Tcl_GetStringFromObj(objPtr, &length);
    cmdLit = TclRegisterNewCmdLiteral(envPtr, bytes, length);
    TclSetCmdNameObj(interp, envPtr->literalArrayPtr[cmdLit].objPtr, cmdPtr);
    TclEmitPush(cmdLit, envPtr);
    TclDecrRefCount(objPtr);

    /*
     * Do the replacing dispatch.
     */

    TclEmitInstInt4(INST_INVOKE_REPLACE, parsePtr->numWords, envPtr);
    TclEmitInt1(numWords+1, envPtr);
    TclAdjustStackDepth(-1, envPtr);	/* Correction to stack depth calcs. */
}
 
/*
 * Helpers that do issuing of instructions for commands that "don't have
 * compilers" (well, they do; these). They all work by just generating base
 * code to invoke the command; they're intended for ensemble subcommands so
 * that the costs of INST_INVOKE_REPLACE can be avoided where we can work out
 * that they're not needed.
 *
 * Note that these are NOT suitable for commands where there's an argument
 * that is a script, as an [info level] or [info frame] in the inner context
 * can see the difference.
 */

int
TclCompileBasicNArgCommand(
    Tcl_Interp *interp,		/* Used for error reporting. */
    Tcl_Parse *parsePtr,	/* Points to a parse structure for the command
				 * created by Tcl_ParseCommand. */
    Command *cmdPtr,		/* Points to defintion of command being
				 * compiled. */
    CompileEnv *envPtr)		/* Holds resulting instructions. */
{
    Tcl_Token *tokenPtr;
    Tcl_Obj *objPtr;
    char *bytes;
    int length, i, literal;

    /*
     * Push the name of the command we're actually dispatching to as part of
     * the implementation.
     */

    objPtr = Tcl_NewObj();
    Tcl_GetCommandFullName(interp, (Tcl_Command) cmdPtr, objPtr);
    bytes = Tcl_GetStringFromObj(objPtr, &length);
    literal = TclRegisterNewCmdLiteral(envPtr, bytes, length);
    TclSetCmdNameObj(interp, envPtr->literalArrayPtr[literal].objPtr, cmdPtr);
    TclEmitPush(literal, envPtr);
    TclDecrRefCount(objPtr);

    /*
     * Push the words of the command.
     */

    tokenPtr = TokenAfter(parsePtr->tokenPtr);
    for (i=1 ; i<parsePtr->numWords ; i++) {
	if (tokenPtr->type == TCL_TOKEN_SIMPLE_WORD) {
	    PushLiteral(envPtr, tokenPtr[1].start, tokenPtr[1].size);
	} else {
	    CompileTokens(envPtr, tokenPtr, interp);
	}
	tokenPtr = TokenAfter(tokenPtr);
    }

    /*
     * Do the standard dispatch.
     */

    if (i <= 255) {
	TclEmitInstInt1(INST_INVOKE_STK1, i, envPtr);
    } else {
	TclEmitInstInt4(INST_INVOKE_STK4, i, envPtr);
    }
    return TCL_OK;
}

int
TclCompileBasic0ArgCmd(
    Tcl_Interp *interp,		/* Used for error reporting. */
    Tcl_Parse *parsePtr,	/* Points to a parse structure for the command
				 * created by Tcl_ParseCommand. */
    Command *cmdPtr,		/* Points to defintion of command being
				 * compiled. */
    CompileEnv *envPtr)		/* Holds resulting instructions. */
{
    /*
     * Verify that the number of arguments is correct; that's the only case
     * that we know will avoid the call to Tcl_WrongNumArgs() at invoke time,
     * which is the only code that sees the shenanigans of ensemble dispatch.
     */

    if (parsePtr->numWords != 1) {
	return TCL_ERROR;
    }

    return TclCompileBasicNArgCommand(interp, parsePtr, cmdPtr, envPtr);
}

int
TclCompileBasic1ArgCmd(
    Tcl_Interp *interp,		/* Used for error reporting. */
    Tcl_Parse *parsePtr,	/* Points to a parse structure for the command
				 * created by Tcl_ParseCommand. */
    Command *cmdPtr,		/* Points to defintion of command being
				 * compiled. */
    CompileEnv *envPtr)		/* Holds resulting instructions. */
{
    /*
     * Verify that the number of arguments is correct; that's the only case
     * that we know will avoid the call to Tcl_WrongNumArgs() at invoke time,
     * which is the only code that sees the shenanigans of ensemble dispatch.
     */

    if (parsePtr->numWords != 2) {
	return TCL_ERROR;
    }

    return TclCompileBasicNArgCommand(interp, parsePtr, cmdPtr, envPtr);
}

int
TclCompileBasic2ArgCmd(
    Tcl_Interp *interp,		/* Used for error reporting. */
    Tcl_Parse *parsePtr,	/* Points to a parse structure for the command
				 * created by Tcl_ParseCommand. */
    Command *cmdPtr,		/* Points to defintion of command being
				 * compiled. */
    CompileEnv *envPtr)		/* Holds resulting instructions. */
{
    /*
     * Verify that the number of arguments is correct; that's the only case
     * that we know will avoid the call to Tcl_WrongNumArgs() at invoke time,
     * which is the only code that sees the shenanigans of ensemble dispatch.
     */

    if (parsePtr->numWords != 3) {
	return TCL_ERROR;
    }

    return TclCompileBasicNArgCommand(interp, parsePtr, cmdPtr, envPtr);
}

int
TclCompileBasic3ArgCmd(
    Tcl_Interp *interp,		/* Used for error reporting. */
    Tcl_Parse *parsePtr,	/* Points to a parse structure for the command
				 * created by Tcl_ParseCommand. */
    Command *cmdPtr,		/* Points to defintion of command being
				 * compiled. */
    CompileEnv *envPtr)		/* Holds resulting instructions. */
{
    /*
     * Verify that the number of arguments is correct; that's the only case
     * that we know will avoid the call to Tcl_WrongNumArgs() at invoke time,
     * which is the only code that sees the shenanigans of ensemble dispatch.
     */

    if (parsePtr->numWords != 4) {
	return TCL_ERROR;
    }

    return TclCompileBasicNArgCommand(interp, parsePtr, cmdPtr, envPtr);
}

int
TclCompileBasic0Or1ArgCmd(
    Tcl_Interp *interp,		/* Used for error reporting. */
    Tcl_Parse *parsePtr,	/* Points to a parse structure for the command
				 * created by Tcl_ParseCommand. */
    Command *cmdPtr,		/* Points to defintion of command being
				 * compiled. */
    CompileEnv *envPtr)		/* Holds resulting instructions. */
{
    /*
     * Verify that the number of arguments is correct; that's the only case
     * that we know will avoid the call to Tcl_WrongNumArgs() at invoke time,
     * which is the only code that sees the shenanigans of ensemble dispatch.
     */

    if (parsePtr->numWords != 1 && parsePtr->numWords != 2) {
	return TCL_ERROR;
    }

    return TclCompileBasicNArgCommand(interp, parsePtr, cmdPtr, envPtr);
}

int
TclCompileBasic1Or2ArgCmd(
    Tcl_Interp *interp,		/* Used for error reporting. */
    Tcl_Parse *parsePtr,	/* Points to a parse structure for the command
				 * created by Tcl_ParseCommand. */
    Command *cmdPtr,		/* Points to defintion of command being
				 * compiled. */
    CompileEnv *envPtr)		/* Holds resulting instructions. */
{
    /*
     * Verify that the number of arguments is correct; that's the only case
     * that we know will avoid the call to Tcl_WrongNumArgs() at invoke time,
     * which is the only code that sees the shenanigans of ensemble dispatch.
     */

    if (parsePtr->numWords != 2 && parsePtr->numWords != 3) {
	return TCL_ERROR;
    }

    return TclCompileBasicNArgCommand(interp, parsePtr, cmdPtr, envPtr);
}

int
TclCompileBasic2Or3ArgCmd(
    Tcl_Interp *interp,		/* Used for error reporting. */
    Tcl_Parse *parsePtr,	/* Points to a parse structure for the command
				 * created by Tcl_ParseCommand. */
    Command *cmdPtr,		/* Points to defintion of command being
				 * compiled. */
    CompileEnv *envPtr)		/* Holds resulting instructions. */
{
    /*
     * Verify that the number of arguments is correct; that's the only case
     * that we know will avoid the call to Tcl_WrongNumArgs() at invoke time,
     * which is the only code that sees the shenanigans of ensemble dispatch.
     */

    if (parsePtr->numWords != 3 && parsePtr->numWords != 4) {
	return TCL_ERROR;
    }

    return TclCompileBasicNArgCommand(interp, parsePtr, cmdPtr, envPtr);
}

int
TclCompileBasic0To2ArgCmd(
    Tcl_Interp *interp,		/* Used for error reporting. */
    Tcl_Parse *parsePtr,	/* Points to a parse structure for the command
				 * created by Tcl_ParseCommand. */
    Command *cmdPtr,		/* Points to defintion of command being
				 * compiled. */
    CompileEnv *envPtr)		/* Holds resulting instructions. */
{
    /*
     * Verify that the number of arguments is correct; that's the only case
     * that we know will avoid the call to Tcl_WrongNumArgs() at invoke time,
     * which is the only code that sees the shenanigans of ensemble dispatch.
     */

    if (parsePtr->numWords < 1 || parsePtr->numWords > 3) {
	return TCL_ERROR;
    }

    return TclCompileBasicNArgCommand(interp, parsePtr, cmdPtr, envPtr);
}

int
TclCompileBasic1To3ArgCmd(
    Tcl_Interp *interp,		/* Used for error reporting. */
    Tcl_Parse *parsePtr,	/* Points to a parse structure for the command
				 * created by Tcl_ParseCommand. */
    Command *cmdPtr,		/* Points to defintion of command being
				 * compiled. */
    CompileEnv *envPtr)		/* Holds resulting instructions. */
{
    /*
     * Verify that the number of arguments is correct; that's the only case
     * that we know will avoid the call to Tcl_WrongNumArgs() at invoke time,
     * which is the only code that sees the shenanigans of ensemble dispatch.
     */

    if (parsePtr->numWords < 2 || parsePtr->numWords > 4) {
	return TCL_ERROR;
    }

    return TclCompileBasicNArgCommand(interp, parsePtr, cmdPtr, envPtr);
}

int
TclCompileBasicMin0ArgCmd(
    Tcl_Interp *interp,		/* Used for error reporting. */
    Tcl_Parse *parsePtr,	/* Points to a parse structure for the command
				 * created by Tcl_ParseCommand. */
    Command *cmdPtr,		/* Points to defintion of command being
				 * compiled. */
    CompileEnv *envPtr)		/* Holds resulting instructions. */
{
    /*
     * Verify that the number of arguments is correct; that's the only case
     * that we know will avoid the call to Tcl_WrongNumArgs() at invoke time,
     * which is the only code that sees the shenanigans of ensemble dispatch.
     */

    if (parsePtr->numWords < 1) {
	return TCL_ERROR;
    }

    return TclCompileBasicNArgCommand(interp, parsePtr, cmdPtr, envPtr);
}

int
TclCompileBasicMin1ArgCmd(
    Tcl_Interp *interp,		/* Used for error reporting. */
    Tcl_Parse *parsePtr,	/* Points to a parse structure for the command
				 * created by Tcl_ParseCommand. */
    Command *cmdPtr,		/* Points to defintion of command being
				 * compiled. */
    CompileEnv *envPtr)		/* Holds resulting instructions. */
{
    /*
     * Verify that the number of arguments is correct; that's the only case
     * that we know will avoid the call to Tcl_WrongNumArgs() at invoke time,
     * which is the only code that sees the shenanigans of ensemble dispatch.
     */

    if (parsePtr->numWords < 2) {
	return TCL_ERROR;
    }

    return TclCompileBasicNArgCommand(interp, parsePtr, cmdPtr, envPtr);
}

int
TclCompileBasicMin2ArgCmd(
    Tcl_Interp *interp,		/* Used for error reporting. */
    Tcl_Parse *parsePtr,	/* Points to a parse structure for the command
				 * created by Tcl_ParseCommand. */
    Command *cmdPtr,		/* Points to defintion of command being
				 * compiled. */
    CompileEnv *envPtr)		/* Holds resulting instructions. */
{
    /*
     * Verify that the number of arguments is correct; that's the only case
     * that we know will avoid the call to Tcl_WrongNumArgs() at invoke time,
     * which is the only code that sees the shenanigans of ensemble dispatch.
     */

    if (parsePtr->numWords < 3) {
	return TCL_ERROR;
    }

    return TclCompileBasicNArgCommand(interp, parsePtr, cmdPtr, envPtr);
}

 
/*
 *----------------------------------------------------------------------
 *
 * TclCompileEnsemble --
 *
 *	Procedure called to compile an ensemble command. Note that most
 *	ensembles are not compiled, since modifying a compiled ensemble causes
 *	a invalidation of all existing bytecode (expensive!) which is not
 *	normally warranted.
 *
 * 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 subcommands of the
 *	ensemble at runtime if a compile-time mapping is possible.
 *
 *----------------------------------------------------------------------
 */

int
TclCompileEnsemble(
    Tcl_Interp *interp,		/* Used for error reporting. */
    Tcl_Parse *parsePtr,	/* Points to a parse structure for the command
				 * created by Tcl_ParseCommand. */
    Command *cmdPtr,		/* Points to defintion of command being
				 * compiled. */
    CompileEnv *envPtr)		/* Holds resulting instructions. */
{
    Tcl_Token *tokenPtr = TokenAfter(parsePtr->tokenPtr);
    Tcl_Obj *mapObj, *subcmdObj, *targetCmdObj, *listObj, **elems;
    Tcl_Obj *replaced = Tcl_NewObj(), *replacement;
    Tcl_Command ensemble = (Tcl_Command) cmdPtr;
    Command *oldCmdPtr = cmdPtr, *newCmdPtr;
    int len, result, flags = 0, i, depth = 1, invokeAnyway = 0;
    int ourResult = TCL_ERROR;
    unsigned numBytes;
    const char *word;

    Tcl_IncrRefCount(replaced);

    /*
     * This is where we return to if we are parsing multiple nested compiled
     * ensembles. [info object] is such a beast.
     */

  checkNextWord:
    if (parsePtr->numWords < depth + 1) {
	goto failed;
    }
    if (tokenPtr->type != TCL_TOKEN_SIMPLE_WORD) {
	/*
	 * Too hard.
	 */

	goto failed;
    }

    word = tokenPtr[1].start;
    numBytes = tokenPtr[1].size;

    /*
     * There's a sporting chance we'll be able to compile this. But now we
     * must check properly. To do that, check that we're compiling an ensemble
     * that has a compilable command as its appropriate subcommand.
     */

    if (Tcl_GetEnsembleMappingDict(NULL, ensemble, &mapObj) != TCL_OK
	    || mapObj == NULL) {
	/*
	 * Either not an ensemble or a mapping isn't installed. Crud. Too hard
	 * to proceed.
	 */

	goto failed;
    }

    /*
     * Also refuse to compile anything that uses a formal parameter list for
     * now, on the grounds that it is too complex.
     */

    if (Tcl_GetEnsembleParameterList(NULL, ensemble, &listObj) != TCL_OK
	    || listObj != NULL) {
	/*
	 * Figuring out how to compile this has become too much. Bail out.
	 */

	goto failed;
    }

    /*
     * Next, get the flags. We need them on several code paths so that we can
     * know whether we're to do prefix matching.
     */

    (void) Tcl_GetEnsembleFlags(NULL, ensemble, &flags);

    /*
     * Check to see if there's also a subcommand list; must check to see if
     * the subcommand we are calling is in that list if it exists, since that
     * list filters the entries in the map.
     */

    (void) Tcl_GetEnsembleSubcommandList(NULL, ensemble, &listObj);
    if (listObj != NULL) {
	int sclen;
	const char *str;
	Tcl_Obj *matchObj = NULL;

	if (Tcl_ListObjGetElements(NULL, listObj, &len, &elems) != TCL_OK) {
	    goto failed;
	}
	for (i=0 ; i<len ; i++) {
	    str = Tcl_GetStringFromObj(elems[i], &sclen);
	    if ((sclen == (int) numBytes) && !memcmp(word, str, numBytes)) {
		/*
		 * Exact match! Excellent!
		 */

		result = Tcl_DictObjGet(NULL, mapObj,elems[i], &targetCmdObj);
		if (result != TCL_OK || targetCmdObj == NULL) {
		    goto failed;
		}
		replacement = elems[i];
		goto doneMapLookup;
	    }

	    /*
	     * Check to see if we've got a prefix match. A single prefix match
	     * is fine, and allows us to refine our dictionary lookup, but
	     * multiple prefix matches is a Bad Thing and will prevent us from
	     * making progress. Note that we cannot do the lookup immediately
	     * in the prefix case; might be another entry later in the list
	     * that causes things to fail.
	     */

	    if ((flags & TCL_ENSEMBLE_PREFIX)
		    && strncmp(word, str, numBytes) == 0) {
		if (matchObj != NULL) {
		    goto failed;
		}
		matchObj = elems[i];
	    }
	}
	if (matchObj == NULL) {
	    goto failed;
	}
	result = Tcl_DictObjGet(NULL, mapObj, matchObj, &targetCmdObj);
	if (result != TCL_OK || targetCmdObj == NULL) {
	    goto failed;
	}
	replacement = matchObj;
    } else {
	Tcl_DictSearch s;
	int done, matched;
	Tcl_Obj *tmpObj;

	/*
	 * No map, so check the dictionary directly.
	 */

	TclNewStringObj(subcmdObj, word, (int) numBytes);
	result = Tcl_DictObjGet(NULL, mapObj, subcmdObj, &targetCmdObj);
	if (result == TCL_OK && targetCmdObj != NULL) {
	    /*
	     * Got it. Skip the fiddling around with prefixes.
	     */

	    replacement = subcmdObj;
	    goto doneMapLookup;
	}
	TclDecrRefCount(subcmdObj);

	/*
	 * We've not literally got a valid subcommand. But maybe we have a
	 * prefix. Check if prefix matches are allowed.
	 */

	if (!(flags & TCL_ENSEMBLE_PREFIX)) {
	    goto failed;
	}

	/*
	 * Iterate over the keys in the dictionary, checking to see if we're a
	 * prefix.
	 */

	Tcl_DictObjFirst(NULL, mapObj, &s, &subcmdObj, &tmpObj, &done);
	matched = 0;
	replacement = NULL;		/* Silence, fool compiler! */
	while (!done) {
	    if (strncmp(TclGetString(subcmdObj), word, numBytes) == 0) {
		if (matched++) {
		    /*
		     * Must have matched twice! Not unique, so no point
		     * looking further.
		     */

		    break;
		}
		replacement = subcmdObj;
		targetCmdObj = tmpObj;
	    }
	    Tcl_DictObjNext(&s, &subcmdObj, &tmpObj, &done);
	}
	Tcl_DictObjDone(&s);

	/*
	 * If we have anything other than a single match, we've failed the
	 * unique prefix check.
	 */

	if (matched != 1) {
	    invokeAnyway = 1;
	    goto failed;
	}
    }

    /*
     * OK, we definitely map to something. But what?
     *
     * The command we map to is the first word out of the map element. Note
     * that we also reject dealing with multi-element rewrites if we are in a
     * safe interpreter, as there is otherwise a (highly gnarly!) way to make
     * Tcl crash open to exploit.
     */

  doneMapLookup:
    Tcl_ListObjAppendElement(NULL, replaced, replacement);
    if (Tcl_ListObjGetElements(NULL, targetCmdObj, &len, &elems) != TCL_OK) {
	goto failed;
    } else if (len != 1) {
	/*
	 * Note that at this point we know we can't issue any special
	 * instruction sequence as the mapping isn't one that we support at
	 * the compiled level.
	 */

	goto cleanup;
    }
    targetCmdObj = elems[0];

    oldCmdPtr = cmdPtr;
    Tcl_IncrRefCount(targetCmdObj);
    newCmdPtr = (Command *) Tcl_GetCommandFromObj(interp, targetCmdObj);
    TclDecrRefCount(targetCmdObj);
    if (newCmdPtr == NULL || Tcl_IsSafe(interp)
	    || newCmdPtr->nsPtr->flags & NS_SUPPRESS_COMPILATION
	    || newCmdPtr->flags & CMD_HAS_EXEC_TRACES
	    || ((Interp *)interp)->flags & DONT_COMPILE_CMDS_INLINE) {
	/*
	 * Maps to an undefined command or a command without a compiler.
	 * Cannot compile.
	 */

	goto cleanup;
    }
    cmdPtr = newCmdPtr;
    depth++;

    /*
     * See whether we have a nested ensemble. If we do, we can go round the
     * mulberry bush again, consuming the next word.
     */

    if (cmdPtr->compileProc == TclCompileEnsemble) {
	tokenPtr = TokenAfter(tokenPtr);
	ensemble = (Tcl_Command) cmdPtr;
	goto checkNextWord;
    }

    /*
     * Now we've done the mapping process, can now actually try to compile.
     * If there is a subcommand compiler and that successfully produces code,
     * we'll use that. Otherwise, we fall back to generating opcodes to do the
     * invoke at runtime.
     */

    invokeAnyway = 1;
    if (TclCompileToCompiledCommand(interp, parsePtr, depth, cmdPtr,
	    envPtr) == TCL_OK) {
	ourResult = TCL_OK;
	goto cleanup;
    }

    /*
     * Failed to do a full compile for some reason. Try to do a direct invoke
     * instead of going through the ensemble lookup process again.
     */

  failed:
    if (depth < 250) {
	if (depth > 1) {
	    if (!invokeAnyway) {
		cmdPtr = oldCmdPtr;
		depth--;
	    }
	    (void) Tcl_ListObjReplace(NULL, replaced, depth, 2, 0, NULL);
	}
	TclCompileToInvokedCommand(interp, parsePtr, replaced, cmdPtr, envPtr);
	ourResult = TCL_OK;
    }

    /*
     * Release the memory we allocated. If we've got here, we've either done
     * something useful or we're in a case that we can't compile at all and
     * we're just giving up.
     */

  cleanup:
    Tcl_DecrRefCount(replaced);
    return ourResult;
}

Changes to generic/tclCompExpr.c.

7
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 *
 * Contributions from Don Porter, NIST, 2006-2007. (not subject to US copyright)
 *
 * 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"		/* CompileEnv */

/*
 * Expression parsing takes place in the routine ParseExpr(). It takes a
 * string as input, parses that string, and generates a representation of the
 * expression in the form of a tree of operators, a list of literals, a list
 * of function names, and an array of Tcl_Token's within a Tcl_Parse struct.
 * The tree is composed of OpNodes.






<
|







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 *
 * Contributions from Don Porter, NIST, 2006-2007. (not subject to US copyright)
 *
 * See the file "license.terms" for information on usage and redistribution of
 * this file, and for a DISCLAIMER OF ALL WARRANTIES.
 */


#include "tclEngineInt.h"		/* CompileEnv */

/*
 * Expression parsing takes place in the routine ParseExpr(). It takes a
 * string as input, parses that string, and generates a representation of the
 * expression in the form of a tree of operators, a list of literals, a list
 * of function names, and an array of Tcl_Token's within a Tcl_Parse struct.
 * The tree is composed of OpNodes.

Changes to generic/tclCompile.c.

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...
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 * Copyright (c) 1996-1998 Sun Microsystems, Inc.
 * Copyright (c) 2001 by Kevin B. Kenny. All rights reserved.
 *
 * 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"

/*
 * Table of all AuxData types.
 */

static Tcl_HashTable auxDataTypeTable;
static int auxDataTypeTableInitialized; /* 0 means not yet initialized. */
................................................................................
static const Tcl_ObjType substCodeType = {
    "substcode",		/* name */
    FreeSubstCodeInternalRep,	/* freeIntRepProc */
    DupByteCodeInternalRep,	/* dupIntRepProc - shared with bytecode */
    NULL,			/* updateStringProc */
    NULL,			/* setFromAnyProc */
};












 
/*
 *----------------------------------------------------------------------
 *
 * TclSetByteCodeFromAny --
 *






|
<







 







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 * Copyright (c) 1996-1998 Sun Microsystems, Inc.
 * Copyright (c) 2001 by Kevin B. Kenny. All rights reserved.
 *
 * See the file "license.terms" for information on usage and redistribution of
 * this file, and for a DISCLAIMER OF ALL WARRANTIES.
 */

#include "tclEngineInt.h"


/*
 * Table of all AuxData types.
 */

static Tcl_HashTable auxDataTypeTable;
static int auxDataTypeTableInitialized; /* 0 means not yet initialized. */
................................................................................
static const Tcl_ObjType substCodeType = {
    "substcode",		/* name */
    FreeSubstCodeInternalRep,	/* freeIntRepProc */
    DupByteCodeInternalRep,	/* dupIntRepProc - shared with bytecode */
    NULL,			/* updateStringProc */
    NULL,			/* setFromAnyProc */
};


void TclForceBodyNS(
    Tcl_Obj *bodyPtr,
    Namespace *nsPtr)
{
    if (bodyPtr->typePtr == &tclByteCodeType) {
	((ByteCode *)bodyPtr->internalRep.otherValuePtr)->nsPtr = nsPtr;
    }
}


 
/*
 *----------------------------------------------------------------------
 *
 * TclSetByteCodeFromAny --
 *

Added generic/tclEngine.h.
































































































































































































































































































































































































































































































































































































































































































































































































































































































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#ifndef _TCLENGINE
#define _TCLENGINE 1

/*
 * ClientData type used by the math operator commands.
 */

typedef struct {
    const char *op;		/* Do not call it 'operator': C++ reserved */
    const char *expected;
    union {
	int numArgs;
	int identity;
    } i;
} TclOpCmdClientData;

MODULE_SCOPE int	TclSingleOpCmd(ClientData clientData,
			    Tcl_Interp *interp, int objc,
			    Tcl_Obj *const objv[]);
MODULE_SCOPE int	TclSortingOpCmd(ClientData clientData,
			    Tcl_Interp *interp, int objc,
			    Tcl_Obj *const objv[]);
MODULE_SCOPE int	TclVariadicOpCmd(ClientData clientData,
			    Tcl_Interp *interp, int objc,
			    Tcl_Obj *const objv[]);
MODULE_SCOPE int	TclNoIdentOpCmd(ClientData clientData,
			    Tcl_Interp *interp, int objc,
			    Tcl_Obj *const objv[]);

MODULE_SCOPE void	TclReleaseLiteral(Tcl_Interp *interp, Tcl_Obj *objPtr);
MODULE_SCOPE Tcl_Obj *	TclCreateLiteral(Interp *iPtr, char *bytes,
			    int length, unsigned int hash, int *newPtr,
			    Namespace *nsPtr, int flags,
			    LiteralEntry **globalPtrPtr);

/*
 * The structure defining the bytecode instructions resulting from compiling a
 * Tcl script. Note that this structure is variable length: a single heap
 * object is allocated to hold the ByteCode structure immediately followed by
 * the code bytes, the literal object array, the ExceptionRange array, the
 * CmdLocation map, and the compilation AuxData array.
 */

/*
 * A PRECOMPILED bytecode struct is one that was generated from a compiled
 * image rather than implicitly compiled from source
 */

#define TCL_BYTECODE_PRECOMPILED		0x0001

/*
 * When a bytecode is compiled, interp or namespace resolvers have not been
 * applied yet: this is indicated by the TCL_BYTECODE_RESOLVE_VARS flag.
 */

#define TCL_BYTECODE_RESOLVE_VARS		0x0002

#define TCL_BYTECODE_RECOMPILE			0x0004

typedef struct ByteCode {
    TclHandle interpHandle;	/* Handle for interpreter containing the
				 * compiled code. Commands and their compile
				 * procs are specific to an interpreter so the
				 * code emitted will depend on the
				 * interpreter. */
    int compileEpoch;		/* Value of iPtr->compileEpoch when this
				 * ByteCode was compiled. Used to invalidate
				 * code when, e.g., commands with compile
				 * procs are redefined. */
    Namespace *nsPtr;		/* Namespace context in which this code was
				 * compiled. If the code is executed if a
				 * different namespace, it must be
				 * recompiled. */
    int nsEpoch;		/* Value of nsPtr->resolverEpoch when this
				 * ByteCode was compiled. Used to invalidate
				 * code when new namespace resolution rules
				 * are put into effect. */
    int refCount;		/* Reference count: set 1 when created plus 1
				 * for each execution of the code currently
				 * active. This structure can be freed when
				 * refCount becomes zero. */
    unsigned int flags;		/* flags describing state for the codebyte.
				 * this variable holds ORed values from the
				 * TCL_BYTECODE_ masks defined above */
    const char *source;		/* The source string from which this ByteCode
				 * was compiled. Note that this pointer is not
				 * owned by the ByteCode and must not be freed
				 * or modified by it. */
    Proc *procPtr;		/* If the ByteCode was compiled from a
				 * procedure body, this is a pointer to its
				 * Proc structure; otherwise NULL. This
				 * pointer is also not owned by the ByteCode
				 * and must not be freed by it. */
    LocalCache *localCachePtr;	/* Pointer to the start of the cached variable
				 * names and initialisation data for local
				 * variables. */
#ifdef TCL_COMPILE_STATS
    Tcl_Time createTime;	/* Absolute time when the ByteCode was
				 * created. */
#endif /* TCL_COMPILE_STATS */
    size_t structureSize;	/* Number of bytes in the ByteCode structure
				 * itself. Does not include heap space for
				 * literal Tcl objects or storage referenced
				 * by AuxData entries. */
    int numCommands;		/* Number of commands compiled. */
    int numSrcBytes;		/* Number of source bytes compiled. */
    int numCodeBytes;		/* Number of code bytes. */
    int numLitObjects;		/* Number of objects in literal array. */
    int numExceptRanges;	/* Number of ExceptionRange array elems. */
    int numAuxDataItems;	/* Number of AuxData items. */
    int numCmdLocBytes;		/* Number of bytes needed for encoded command
				 * location information. */
    int maxExceptDepth;		/* Maximum nesting level of ExceptionRanges;
				 * -1 if no ranges were compiled. */
    int maxStackDepth;		/* Maximum number of stack elements needed to
				 * execute the code. */
    unsigned char *codeStart;	/* Points to the first byte of the code. This
				 * is just after the final ByteCode member
				 * cmdMapPtr. */
    Tcl_Obj **objArrayPtr;	/* Points to the start of the literal object
				 * array. This is just after the last code
				 * byte. */
    struct ExceptionRange *exceptArrayPtr;
    				/* Points to the start of the ExceptionRange
				 * array. This is just after the last object
				 * in the object array. */
    struct AuxData *auxDataArrayPtr;	/* Points to the start of the auxiliary data
				 * array. This is just after the last entry in
				 * the ExceptionRange array. */
    unsigned char *codeDeltaStart;
				/* Points to the first of a sequence of bytes
				 * that encode the change in the starting
				 * offset of each command's code. If -127 <=
				 * delta <= 127, it is encoded as 1 byte,
				 * otherwise 0xFF (128) appears and the delta
				 * is encoded by the next 4 bytes. Code deltas
				 * are always positive. This sequence is just
				 * after the last entry in the AuxData
				 * array. */
    unsigned char *codeLengthStart;
				/* Points to the first of a sequence of bytes
				 * that encode the length of each command's
				 * code. The encoding is the same as for code
				 * deltas. Code lengths are always positive.
				 * This sequence is just after the last entry
				 * in the code delta sequence. */
    unsigned char *srcDeltaStart;
				/* Points to the first of a sequence of bytes
				 * that encode the change in the starting
				 * offset of each command's source. The
				 * encoding is the same as for code deltas.
				 * Source deltas can be negative. This
				 * sequence is just after the last byte in the
				 * code length sequence. */
    unsigned char *srcLengthStart;
				/* Points to the first of a sequence of bytes
				 * that encode the length of each command's
				 * source. The encoding is the same as for
				 * code deltas. Source lengths are always
				 * positive. This sequence is just after the
				 * last byte in the source delta sequence. */
} ByteCode;
    
/*
 * The type of procedure called from the compilation hook point in
 * SetByteCodeFromAny.
 */
typedef struct CompileEnv CompileEnv;
typedef int (CompileHookProc)(Tcl_Interp *interp,
	CompileEnv *compEnvPtr, ClientData clientData);

MODULE_SCOPE int TclCompileToCompiledCommand(Tcl_Interp *interp,
			    Tcl_Parse *parsePtr, int depth, Command *cmdPtr,
			    struct CompileEnv *envPtr);
MODULE_SCOPE void TclCompileToInvokedCommand(Tcl_Interp *interp,
			    Tcl_Parse *parsePtr, Tcl_Obj *replacements,
			    Command *cmdPtr, struct CompileEnv *envPtr);
MODULE_SCOPE int TclCompileBasicNArgCommand(Tcl_Interp *interp,
			    Tcl_Parse *parsePtr, Command *cmdPtr,
			    struct CompileEnv *envPtr);

typedef struct ByteCode ByteCode;		/* Forward declaration. */

MODULE_SCOPE int	TclNRExecuteByteCode(Tcl_Interp *interp,
			    ByteCode *codePtr);

MODULE_SCOPE int TclSetByteCodeFromAny(Tcl_Interp *interp, Tcl_Obj *objPtr,
	CompileHookProc *hookProc, ClientData clientData);

MODULE_SCOPE ExecEnv *	TclCreateExecEnv(Tcl_Interp *interp, int size);
MODULE_SCOPE void	TclInitCompileEnv(Tcl_Interp *interp,
			    CompileEnv *envPtr, const char *string,
			    int numBytes);
MODULE_SCOPE void	TclDeleteExecEnv(ExecEnv *eePtr);

MODULE_SCOPE void	TclInvalidateCmdLiteral(Tcl_Interp *interp, 
			    const char *name, Namespace *nsPtr);
MODULE_SCOPE void	TclInitLiteralTable(LiteralTable *tablePtr);
MODULE_SCOPE void	TclDeleteLiteralTable(Tcl_Interp *interp,
			    LiteralTable *tablePtr);
/*
 *----------------------------------------------------------------
 * Procedures exported by the engine to be used by tclBasic.c
 *----------------------------------------------------------------
 */

MODULE_SCOPE ByteCode *	TclCompileObj(Tcl_Interp *interp, Tcl_Obj *objPtr);


#ifdef TCL_COMPILE_STATS
MODULE_SCOPE char *	TclLiteralStats(LiteralTable *tablePtr);
MODULE_SCOPE int	TclLog2(int value);
#endif

/*
 * DTrace probe macros (NOPs if DTrace support is not enabled).
 */

/*
 * Define the following macros to enable debug logging of the DTrace proc,
 * cmd, and inst probes. Note that this does _not_ require a platform with
 * DTrace, it simply logs all probe output to /tmp/tclDTraceDebug-[pid].log.
 *
 * If the second macro is defined, logging to file starts immediately,
 * otherwise only after the first call to [tcl::dtrace]. Note that the debug
 * probe data is always computed, even when it is not logged to file.
 *
 * Defining the third macro enables debug logging of inst probes (disabled
 * by default due to the significant performance impact).
 */

/*
#define TCL_DTRACE_DEBUG 1
#define TCL_DTRACE_DEBUG_LOG_ENABLED 1
#define TCL_DTRACE_DEBUG_INST_PROBES 1
*/

#if !(defined(TCL_DTRACE_DEBUG) && defined(__GNUC__))

#ifdef USE_DTRACE

#if defined(__GNUC__) && __GNUC__ > 2
/*
 * Use gcc branch prediction hint to minimize cost of DTrace ENABLED checks.
 */
#define unlikely(x) (__builtin_expect((x), 0))
#else
#define unlikely(x) (x)
#endif

#define TCL_DTRACE_PROC_ENTRY_ENABLED()	    unlikely(TCL_PROC_ENTRY_ENABLED())
#define TCL_DTRACE_PROC_RETURN_ENABLED()    unlikely(TCL_PROC_RETURN_ENABLED())
#define TCL_DTRACE_PROC_RESULT_ENABLED()    unlikely(TCL_PROC_RESULT_ENABLED())
#define TCL_DTRACE_PROC_ARGS_ENABLED()	    unlikely(TCL_PROC_ARGS_ENABLED())
#define TCL_DTRACE_PROC_INFO_ENABLED()	    unlikely(TCL_PROC_INFO_ENABLED())
#define TCL_DTRACE_PROC_ENTRY(a0, a1, a2)   TCL_PROC_ENTRY(a0, a1, a2)
#define TCL_DTRACE_PROC_RETURN(a0, a1)	    TCL_PROC_RETURN(a0, a1)
#define TCL_DTRACE_PROC_RESULT(a0, a1, a2, a3) TCL_PROC_RESULT(a0, a1, a2, a3)
#define TCL_DTRACE_PROC_ARGS(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9) \
	TCL_PROC_ARGS(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9)
#define TCL_DTRACE_PROC_INFO(a0, a1, a2, a3, a4, a5, a6, a7) \
	TCL_PROC_INFO(a0, a1, a2, a3, a4, a5, a6, a7)

#define TCL_DTRACE_CMD_ENTRY_ENABLED()	    unlikely(TCL_CMD_ENTRY_ENABLED())
#define TCL_DTRACE_CMD_RETURN_ENABLED()	    unlikely(TCL_CMD_RETURN_ENABLED())
#define TCL_DTRACE_CMD_RESULT_ENABLED()	    unlikely(TCL_CMD_RESULT_ENABLED())
#define TCL_DTRACE_CMD_ARGS_ENABLED()	    unlikely(TCL_CMD_ARGS_ENABLED())
#define TCL_DTRACE_CMD_INFO_ENABLED()	    unlikely(TCL_CMD_INFO_ENABLED())
#define TCL_DTRACE_CMD_ENTRY(a0, a1, a2)    TCL_CMD_ENTRY(a0, a1, a2)
#define TCL_DTRACE_CMD_RETURN(a0, a1)	    TCL_CMD_RETURN(a0, a1)
#define TCL_DTRACE_CMD_RESULT(a0, a1, a2, a3) TCL_CMD_RESULT(a0, a1, a2, a3)
#define TCL_DTRACE_CMD_ARGS(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9) \
	TCL_CMD_ARGS(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9)
#define TCL_DTRACE_CMD_INFO(a0, a1, a2, a3, a4, a5, a6, a7) \
	TCL_CMD_INFO(a0, a1, a2, a3, a4, a5, a6, a7)

#define TCL_DTRACE_INST_START_ENABLED()	    unlikely(TCL_INST_START_ENABLED())
#define TCL_DTRACE_INST_DONE_ENABLED()	    unlikely(TCL_INST_DONE_ENABLED())
#define TCL_DTRACE_INST_START(a0, a1, a2)   TCL_INST_START(a0, a1, a2)
#define TCL_DTRACE_INST_DONE(a0, a1, a2)    TCL_INST_DONE(a0, a1, a2)

#define TCL_DTRACE_TCL_PROBE_ENABLED()	    unlikely(TCL_TCL_PROBE_ENABLED())
#define TCL_DTRACE_TCL_PROBE(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9) \
	TCL_TCL_PROBE(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9)

#define TCL_DTRACE_DEBUG_LOG()

MODULE_SCOPE void	TclDTraceInfo(Tcl_Obj *info, const char **args,
			    int *argsi);

#else /* USE_DTRACE */

#define TCL_DTRACE_PROC_ENTRY_ENABLED()	    0
#define TCL_DTRACE_PROC_RETURN_ENABLED()    0
#define TCL_DTRACE_PROC_RESULT_ENABLED()    0
#define TCL_DTRACE_PROC_ARGS_ENABLED()	    0
#define TCL_DTRACE_PROC_INFO_ENABLED()	    0
#define TCL_DTRACE_PROC_ENTRY(a0, a1, a2)   {if (a0) {}}
#define TCL_DTRACE_PROC_RETURN(a0, a1)	    {if (a0) {}}
#define TCL_DTRACE_PROC_RESULT(a0, a1, a2, a3) {if (a0) {}; if (a3) {}}
#define TCL_DTRACE_PROC_ARGS(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9) {}
#define TCL_DTRACE_PROC_INFO(a0, a1, a2, a3, a4, a5, a6, a7) {}

#define TCL_DTRACE_CMD_ENTRY_ENABLED()	    0
#define TCL_DTRACE_CMD_RETURN_ENABLED()	    0
#define TCL_DTRACE_CMD_RESULT_ENABLED()	    0
#define TCL_DTRACE_CMD_ARGS_ENABLED()	    0
#define TCL_DTRACE_CMD_INFO_ENABLED()	    0
#define TCL_DTRACE_CMD_ENTRY(a0, a1, a2)    {}
#define TCL_DTRACE_CMD_RETURN(a0, a1)	    {}
#define TCL_DTRACE_CMD_RESULT(a0, a1, a2, a3) {}
#define TCL_DTRACE_CMD_ARGS(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9) {}
#define TCL_DTRACE_CMD_INFO(a0, a1, a2, a3, a4, a5, a6, a7) {}

#define TCL_DTRACE_INST_START_ENABLED()	    0
#define TCL_DTRACE_INST_DONE_ENABLED()	    0
#define TCL_DTRACE_INST_START(a0, a1, a2)   {}
#define TCL_DTRACE_INST_DONE(a0, a1, a2)    {}

#define TCL_DTRACE_TCL_PROBE_ENABLED()	    0
#define TCL_DTRACE_TCL_PROBE(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9) {}

#define TclDTraceInfo(info, args, argsi)    {*args = ""; *argsi = 0;}

#endif /* USE_DTRACE */

#else /* TCL_DTRACE_DEBUG */

#define USE_DTRACE 1

#if !defined(TCL_DTRACE_DEBUG_LOG_ENABLED) || !(TCL_DTRACE_DEBUG_LOG_ENABLED)
#undef TCL_DTRACE_DEBUG_LOG_ENABLED
#define TCL_DTRACE_DEBUG_LOG_ENABLED 0
#endif

#if !defined(TCL_DTRACE_DEBUG_INST_PROBES) || !(TCL_DTRACE_DEBUG_INST_PROBES)
#undef TCL_DTRACE_DEBUG_INST_PROBES
#define TCL_DTRACE_DEBUG_INST_PROBES 0
#endif

MODULE_SCOPE int tclDTraceDebugEnabled, tclDTraceDebugIndent;
MODULE_SCOPE FILE *tclDTraceDebugLog;
MODULE_SCOPE void TclDTraceOpenDebugLog(void);
MODULE_SCOPE void TclDTraceInfo(Tcl_Obj *info, const char **args, int *argsi);

#define TCL_DTRACE_DEBUG_LOG() \
    int tclDTraceDebugEnabled = TCL_DTRACE_DEBUG_LOG_ENABLED;	\
    int tclDTraceDebugIndent = 0;				\
    FILE *tclDTraceDebugLog = NULL;				\
    void TclDTraceOpenDebugLog(void) {				\
	char n[35];						\
	sprintf(n, "/tmp/tclDTraceDebug-%lu.log",		\
		(unsigned long) getpid());			\
	tclDTraceDebugLog = fopen(n, "a");			\
    }

#define TclDTraceDbgMsg(p, m, ...) \
    do {								\
	if (tclDTraceDebugEnabled) {					\
	    int _l, _t = 0;						\
	    if (!tclDTraceDebugLog) { TclDTraceOpenDebugLog(); }	\
	    fprintf(tclDTraceDebugLog, "%.12s:%.4d:%n",			\
		    strrchr(__FILE__, '/')+1, __LINE__, &_l); _t += _l; \
	    fprintf(tclDTraceDebugLog, " %.*s():%n",			\
		    (_t < 18 ? 18 - _t : 0) + 18, __func__, &_l); _t += _l; \
	    fprintf(tclDTraceDebugLog, "%*s" p "%n",			\
		    (_t < 40 ? 40 - _t : 0) + 2 * tclDTraceDebugIndent, \
		    "", &_l); _t += _l;					\
	    fprintf(tclDTraceDebugLog, "%*s" m "\n",			\
		    (_t < 64 ? 64 - _t : 1), "", ##__VA_ARGS__);	\
	    fflush(tclDTraceDebugLog);					\
	}								\
    } while (0)

#define TCL_DTRACE_PROC_ENTRY_ENABLED()	    1
#define TCL_DTRACE_PROC_RETURN_ENABLED()    1
#define TCL_DTRACE_PROC_RESULT_ENABLED()    1
#define TCL_DTRACE_PROC_ARGS_ENABLED()	    1
#define TCL_DTRACE_PROC_INFO_ENABLED()	    1
#define TCL_DTRACE_PROC_ENTRY(a0, a1, a2) \
	tclDTraceDebugIndent++; \
	TclDTraceDbgMsg("-> proc-entry", "%s %d %p", a0, a1, a2)
#define TCL_DTRACE_PROC_RETURN(a0, a1) \
	TclDTraceDbgMsg("<- proc-return", "%s %d", a0, a1); \
	tclDTraceDebugIndent--
#define TCL_DTRACE_PROC_RESULT(a0, a1, a2, a3) \
	TclDTraceDbgMsg(" | proc-result", "%s %d %s %p", a0, a1, a2, a3)
#define TCL_DTRACE_PROC_ARGS(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9) \
	TclDTraceDbgMsg(" | proc-args", "%s %s %s %s %s %s %s %s %s %s", a0, \
		a1, a2, a3, a4, a5, a6, a7, a8, a9)
#define TCL_DTRACE_PROC_INFO(a0, a1, a2, a3, a4, a5, a6, a7) \
	TclDTraceDbgMsg(" | proc-info", "%s %s %s %s %d %d %s %s", a0, a1, \
		a2, a3, a4, a5, a6, a7)

#define TCL_DTRACE_CMD_ENTRY_ENABLED()	    1
#define TCL_DTRACE_CMD_RETURN_ENABLED()	    1
#define TCL_DTRACE_CMD_RESULT_ENABLED()	    1
#define TCL_DTRACE_CMD_ARGS_ENABLED()	    1
#define TCL_DTRACE_CMD_INFO_ENABLED()	    1
#define TCL_DTRACE_CMD_ENTRY(a0, a1, a2) \
	tclDTraceDebugIndent++; \
	TclDTraceDbgMsg("-> cmd-entry", "%s %d %p", a0, a1, a2)
#define TCL_DTRACE_CMD_RETURN(a0, a1) \
	TclDTraceDbgMsg("<- cmd-return", "%s %d", a0, a1); \
	tclDTraceDebugIndent--
#define TCL_DTRACE_CMD_RESULT(a0, a1, a2, a3) \
	TclDTraceDbgMsg(" | cmd-result", "%s %d %s %p", a0, a1, a2, a3)
#define TCL_DTRACE_CMD_ARGS(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9) \
	TclDTraceDbgMsg(" | cmd-args", "%s %s %s %s %s %s %s %s %s %s", a0, \
		a1, a2, a3, a4, a5, a6, a7, a8, a9)
#define TCL_DTRACE_CMD_INFO(a0, a1, a2, a3, a4, a5, a6, a7) \
	TclDTraceDbgMsg(" | cmd-info", "%s %s %s %s %d %d %s %s", a0, a1, \
		a2, a3, a4, a5, a6, a7)

#define TCL_DTRACE_INST_START_ENABLED()	    TCL_DTRACE_DEBUG_INST_PROBES
#define TCL_DTRACE_INST_DONE_ENABLED()	    TCL_DTRACE_DEBUG_INST_PROBES
#define TCL_DTRACE_INST_START(a0, a1, a2) \
	TclDTraceDbgMsg(" | inst-start", "%s %d %p", a0, a1, a2)
#define TCL_DTRACE_INST_DONE(a0, a1, a2) \
	TclDTraceDbgMsg(" | inst-end", "%s %d %p", a0, a1, a2)

#define TCL_DTRACE_TCL_PROBE_ENABLED()	    1
#define TCL_DTRACE_TCL_PROBE(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9) \
    do {								\
	tclDTraceDebugEnabled = 1;					\
	TclDTraceDbgMsg(" | tcl-probe", "%s %s %s %s %s %s %s %s %s %s", a0, \
		a1, a2, a3, a4, a5, a6, a7, a8, a9);			\
    } while (0)

#endif /* TCL_DTRACE_DEBUG */

#endif

Added generic/tclEngineInt.h.






























































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































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#ifndef _TCLENGINEINT
#define _TCLENGINEINT 1


#include "tclInt.h"
#include "tclEngine.h"

/*
 * tclCompile.h --
 *
 * Copyright (c) 1996-1998 Sun Microsystems, Inc.
 * Copyright (c) 1998-2000 by Scriptics Corporation.
 * Copyright (c) 2001 by Kevin B. Kenny. All rights reserved.
 * Copyright (c) 2007 Daniel A. Steffen <[email protected]>
 *
 * See the file "license.terms" for information on usage and redistribution of
 * this file, and for a DISCLAIMER OF ALL WARRANTIES.
 */

/*
 *----------------------------------------------------------------
 * Data structures related to bytecode compilation and execution. These are
 * used primarily in tclCompile.c, tclExecute.c, and tclBasic.c.
 *----------------------------------------------------------------
 */

/*
 * Forward declaration to prevent errors when the forward references to
 * Tcl_Parse and CompileEnv are encountered in the procedure type CompileProc
 * declared below.
 */

struct CompileEnv;

/*
 * The type of procedures called by the Tcl bytecode compiler to compile
 * commands. Pointers to these procedures are kept in the Command structure
 * describing each command. The integer value returned by a CompileProc must
 * be one of the following:
 *
 * TCL_OK		Compilation completed normally.
 * TCL_ERROR 		Compilation could not be completed. This can be just a
 * 			judgment by the CompileProc that the command is too
 * 			complex to compile effectively, or it can indicate
 * 			that in the current state of the interp, the command
 * 			would raise an error. The bytecode compiler will not
 * 			do any error reporting at compiler time. Error
 * 			reporting is deferred until the actual runtime,
 * 			because by then changes in the interp state may allow
 * 			the command to be successfully evaluated.
 * TCL_OUT_LINE_COMPILE	A source-compatible alias for TCL_ERROR, kept for the
 * 			sake of old code only.
 */

#define TCL_OUT_LINE_COMPILE	TCL_ERROR

/*
 * The data structure for a (linked list of) execution stacks.
 */

typedef struct ExecStack {
    struct ExecStack *prevPtr;
    struct ExecStack *nextPtr;
    Tcl_Obj **markerPtr;
    Tcl_Obj **endPtr;
    Tcl_Obj **tosPtr;
    Tcl_Obj *stackWords[1];
} ExecStack;

/*
 *------------------------------------------------------------------------
 * Variables related to compilation. These are used in tclCompile.c,
 * tclExecute.c, tclBasic.c, and their clients.
 *------------------------------------------------------------------------
 */

#ifdef TCL_COMPILE_DEBUG
/*
 * Variable that controls whether compilation tracing is enabled and, if so,
 * what level of tracing is desired:
 *    0: no compilation tracing
 *    1: summarize compilation of top level cmds and proc bodies
 *    2: display all instructions of each ByteCode compiled
 * This variable is linked to the Tcl variable "tcl_traceCompile".
 */

MODULE_SCOPE int 	tclTraceCompile;

/*
 * Variable that controls whether execution tracing is enabled and, if so,
 * what level of tracing is desired:
 *    0: no execution tracing
 *    1: trace invocations of Tcl procs only
 *    2: trace invocations of all (not compiled away) commands
 *    3: display each instruction executed
 * This variable is linked to the Tcl variable "tcl_traceExec".
 */

MODULE_SCOPE int 	tclTraceExec;
#endif
 
/*
 *------------------------------------------------------------------------
 * Data structures related to compilation.
 *------------------------------------------------------------------------
 */

/*
 * The structure used to implement Tcl "exceptions" (exceptional returns): for
 * example, those generated in loops by the break and continue commands, and
 * those generated by scripts and caught by the catch command. This
 * ExceptionRange structure describes a range of code (e.g., a loop body), the
 * kind of exceptions (e.g., a break or continue) that might occur, and the PC
 * offsets to jump to if a matching exception does occur. Exception ranges can
 * nest so this structure includes a nesting level that is used at runtime to
 * find the closest exception range surrounding a PC. For example, when a
 * break command is executed, the ExceptionRange structure for the most deeply
 * nested loop, if any, is found and used. These structures are also generated
 * for the "next" subcommands of for loops since a break there terminates the
 * for command. This means a for command actually generates two LoopInfo
 * structures.
 */

typedef enum {
    LOOP_EXCEPTION_RANGE,	/* Exception's range is part of a loop. Break
				 * and continue "exceptions" cause jumps to
				 * appropriate PC offsets. */
    CATCH_EXCEPTION_RANGE	/* Exception's range is controlled by a catch
				 * command. Errors in the range cause a jump
				 * to a catch PC offset. */
} ExceptionRangeType;

typedef struct ExceptionRange {
    ExceptionRangeType type;	/* The kind of ExceptionRange. */
    int nestingLevel;		/* Static depth of the exception range. Used
				 * to find the most deeply-nested range
				 * surrounding a PC at runtime. */
    int codeOffset;		/* Offset of the first instruction byte of the
				 * code range. */
    int numCodeBytes;		/* Number of bytes in the code range. */
    int breakOffset;		/* If LOOP_EXCEPTION_RANGE, the target PC
				 * offset for a break command in the range. */
    int continueOffset;		/* If LOOP_EXCEPTION_RANGE and not -1, the
				 * target PC offset for a continue command in
				 * the code range. Otherwise, ignore this
				 * range when processing a continue
				 * command. */
    int catchOffset;		/* If a CATCH_EXCEPTION_RANGE, the target PC
				 * offset for any "exception" in range. */
} ExceptionRange;

/*
 * Structure used to map between instruction pc and source locations. It
 * defines for each compiled Tcl command its code's starting offset and its
 * source's starting offset and length. Note that the code offset increases
 * monotonically: that is, the table is sorted in code offset order. The
 * source offset is not monotonic.
 */

typedef struct CmdLocation {
    int codeOffset;		/* Offset of first byte of command code. */
    int numCodeBytes;		/* Number of bytes for command's code. */
    int srcOffset;		/* Offset of first char of the command. */
    int numSrcBytes;		/* Number of command source chars. */
} CmdLocation;

/*
 * CompileProcs need the ability to record information during compilation that
 * can be used by bytecode instructions during execution. The AuxData
 * structure provides this "auxiliary data" mechanism. An arbitrary number of
 * these structures can be stored in the ByteCode record (during compilation
 * they are stored in a CompileEnv structure). Each AuxData record holds one
 * word of client-specified data (often a pointer) and is given an index that
 * instructions can later use to look up the structure and its data.
 *
 * The following definitions declare the types of procedures that are called
 * to duplicate or free this auxiliary data when the containing ByteCode
 * objects are duplicated and freed. Pointers to these procedures are kept in
 * the AuxData structure.
 */

typedef ClientData (AuxDataDupProc)  (ClientData clientData);
typedef void	   (AuxDataFreeProc) (ClientData clientData);
typedef void	   (AuxDataPrintProc)(ClientData clientData,
			    Tcl_Obj *appendObj, struct ByteCode *codePtr,
			    unsigned int pcOffset);

/*
 * We define a separate AuxDataType struct to hold type-related information
 * for the AuxData structure. This separation makes it possible for clients
 * outside of the TCL core to manipulate (in a limited fashion!) AuxData; for
 * example, it makes it possible to pickle and unpickle AuxData structs.
 */

typedef struct AuxDataType {
    const char *name;		/* The name of the type. Types can be
				 * registered and found by name */
    AuxDataDupProc *dupProc;	/* Callback procedure to invoke when the aux
				 * data is duplicated (e.g., when the ByteCode
				 * structure containing the aux data is
				 * duplicated). NULL means just copy the
				 * source clientData bits; no proc need be
				 * called. */
    AuxDataFreeProc *freeProc;	/* Callback procedure to invoke when the aux
				 * data is freed. NULL means no proc need be
				 * called. */
    AuxDataPrintProc *printProc;/* Callback function to invoke when printing
				 * the aux data as part of debugging. NULL
				 * means that the data can't be printed. */
} AuxDataType;

/*
 * The definition of the AuxData structure that holds information created
 * during compilation by CompileProcs and used by instructions during
 * execution.
 */

typedef struct AuxData {
    const AuxDataType *type;	/* Pointer to the AuxData type associated with
				 * this ClientData. */
    ClientData clientData;	/* The compilation data itself. */
} AuxData;

/*
 * Structure defining the compilation environment. After compilation, fields
 * describing bytecode instructions are copied out into the more compact
 * ByteCode structure defined below.
 */

#define COMPILEENV_INIT_CODE_BYTES    250
#define COMPILEENV_INIT_NUM_OBJECTS    60
#define COMPILEENV_INIT_EXCEPT_RANGES   5
#define COMPILEENV_INIT_CMD_MAP_SIZE   40
#define COMPILEENV_INIT_AUX_DATA_SIZE   5

typedef struct CompileEnv {
    Interp *iPtr;		/* Interpreter containing the code being
				 * compiled. Commands and their compile procs
				 * are specific to an interpreter so the code
				 * emitted will depend on the interpreter. */
    const char *source;		/* The source string being compiled by
				 * SetByteCodeFromAny. This pointer is not
				 * owned by the CompileEnv and must not be
				 * freed or changed by it. */
    int numSrcBytes;		/* Number of bytes in source. */
    Proc *procPtr;		/* If a procedure is being compiled, a pointer
				 * to its Proc structure; otherwise NULL. Used
				 * to compile local variables. Set from
				 * information provided by ObjInterpProc in
				 * tclProc.c. */
    int numCommands;		/* Number of commands compiled. */
    int exceptDepth;		/* Current exception range nesting level; -1
				 * if not in any range currently. */
    int maxExceptDepth;		/* Max nesting level of exception ranges; -1
				 * if no ranges have been compiled. */
    int maxStackDepth;		/* Maximum number of stack elements needed to
				 * execute the code. Set by compilation
				 * procedures before returning. */
    int currStackDepth;		/* Current stack depth. */
    LiteralTable localLitTable;	/* Contains LiteralEntry's describing all Tcl
				 * objects referenced by this compiled code.
				 * Indexed by the string representations of
				 * the literals. Used to avoid creating
				 * duplicate objects. */
    unsigned char *codeStart;	/* Points to the first byte of the code. */
    unsigned char *codeNext;	/* Points to next code array byte to use. */
    unsigned char *codeEnd;	/* Points just after the last allocated code
				 * array byte. */
    int mallocedCodeArray;	/* Set 1 if code array was expanded and
				 * codeStart points into the heap.*/
    LiteralEntry *literalArrayPtr;
    				/* Points to start of LiteralEntry array. */
    int literalArrayNext;	/* Index of next free object array entry. */
    int literalArrayEnd;	/* Index just after last obj array entry. */
    int mallocedLiteralArray;	/* 1 if object array was expanded and objArray
				 * points into the heap, else 0. */
    ExceptionRange *exceptArrayPtr;
    				/* Points to start of the ExceptionRange
				 * array. */
    int exceptArrayNext;	/* Next free ExceptionRange array index.
				 * exceptArrayNext is the number of ranges and
				 * (exceptArrayNext-1) is the index of the
				 * current range's array entry. */
    int exceptArrayEnd;		/* Index after the last ExceptionRange array
				 * entry. */
    int mallocedExceptArray;	/* 1 if ExceptionRange array was expanded and
				 * exceptArrayPtr points in heap, else 0. */
    CmdLocation *cmdMapPtr;	/* Points to start of CmdLocation array.
				 * numCommands is the index of the next entry
				 * to use; (numCommands-1) is the entry index
				 * for the last command. */
    int cmdMapEnd;		/* Index after last CmdLocation entry. */
    int mallocedCmdMap;		/* 1 if command map array was expanded and
				 * cmdMapPtr points in the heap, else 0. */
    AuxData *auxDataArrayPtr;	/* Points to auxiliary data array start. */
    int auxDataArrayNext;	/* Next free compile aux data array index.
				 * auxDataArrayNext is the number of aux data
				 * items and (auxDataArrayNext-1) is index of
				 * current aux data array entry. */
    int auxDataArrayEnd;	/* Index after last aux data array entry. */
    int mallocedAuxDataArray;	/* 1 if aux data array was expanded and
				 * auxDataArrayPtr points in heap else 0. */
    unsigned char staticCodeSpace[COMPILEENV_INIT_CODE_BYTES];
				/* Initial storage for code. */
    LiteralEntry staticLiteralSpace[COMPILEENV_INIT_NUM_OBJECTS];
				/* Initial storage of LiteralEntry array. */
    ExceptionRange staticExceptArraySpace[COMPILEENV_INIT_EXCEPT_RANGES];
				/* Initial ExceptionRange array storage. */
    CmdLocation staticCmdMapSpace[COMPILEENV_INIT_CMD_MAP_SIZE];
				/* Initial storage for cmd location map. */
    AuxData staticAuxDataArraySpace[COMPILEENV_INIT_AUX_DATA_SIZE];
				/* Initial storage for aux data array. */
    int atCmdStart;		/* Flag to say whether an INST_START_CMD
				 * should be issued; they should never be
				 * issued repeatedly, as that is significantly
				 * inefficient. */
} CompileEnv;

/*
 * Opcodes for the Tcl bytecode instructions. These must correspond to the
 * entries in the table of instruction descriptions, tclInstructionTable, in
 * tclCompile.c. Also, the order and number of the expression opcodes (e.g.,
 * INST_LOR) must match the entries in the array operatorStrings in
 * tclExecute.c.
 */

/* Opcodes 0 to 9 */
#define INST_DONE			0
#define INST_PUSH1			1
#define INST_PUSH4			2
#define INST_POP			3
#define INST_DUP			4
#define INST_CONCAT1			5
#define INST_INVOKE_STK1		6
#define INST_INVOKE_STK4		7
#define INST_EVAL_STK			8
#define INST_EXPR_STK			9

/* Opcodes 10 to 23 */
#define INST_LOAD_SCALAR1		10
#define INST_LOAD_SCALAR4		11
#define INST_LOAD_SCALAR_STK		12
#define INST_LOAD_ARRAY1		13
#define INST_LOAD_ARRAY4		14
#define INST_LOAD_ARRAY_STK		15
#define INST_LOAD_STK			16
#define INST_STORE_SCALAR1		17
#define INST_STORE_SCALAR4		18
#define INST_STORE_SCALAR_STK		19
#define INST_STORE_ARRAY1		20
#define INST_STORE_ARRAY4		21
#define INST_STORE_ARRAY_STK		22
#define INST_STORE_STK			23

/* Opcodes 24 to 33 */
#define INST_INCR_SCALAR1		24
#define INST_INCR_SCALAR_STK		25
#define INST_INCR_ARRAY1		26
#define INST_INCR_ARRAY_STK		27
#define INST_INCR_STK			28
#define INST_INCR_SCALAR1_IMM		29
#define INST_INCR_SCALAR_STK_IMM	30
#define INST_INCR_ARRAY1_IMM		31
#define INST_INCR_ARRAY_STK_IMM		32
#define INST_INCR_STK_IMM		33

/* Opcodes 34 to 39 */
#define INST_JUMP1			34
#define INST_JUMP4			35
#define INST_JUMP_TRUE1			36
#define INST_JUMP_TRUE4			37
#define INST_JUMP_FALSE1		38
#define INST_JUMP_FALSE4		39

/* Opcodes 40 to 64 */
#define INST_LOR			40
#define INST_LAND			41
#define INST_BITOR			42
#define INST_BITXOR			43
#define INST_BITAND			44
#define INST_EQ				45
#define INST_NEQ			46
#define INST_LT				47
#define INST_GT				48
#define INST_LE				49
#define INST_GE				50
#define INST_LSHIFT			51
#define INST_RSHIFT			52
#define INST_ADD			53
#define INST_SUB			54
#define INST_MULT			55
#define INST_DIV			56
#define INST_MOD			57
#define INST_UPLUS			58
#define INST_UMINUS			59
#define INST_BITNOT			60
#define INST_LNOT			61
#define INST_CALL_BUILTIN_FUNC1		62
#define INST_CALL_FUNC1			63
#define INST_TRY_CVT_TO_NUMERIC		64

/* Opcodes 65 to 66 */
#define INST_BREAK			65
#define INST_CONTINUE			66

/* Opcodes 67 to 68 */
#define INST_FOREACH_START4		67
#define INST_FOREACH_STEP4		68

/* Opcodes 69 to 72 */
#define INST_BEGIN_CATCH4		69
#define INST_END_CATCH			70
#define INST_PUSH_RESULT		71
#define INST_PUSH_RETURN_CODE		72

/* Opcodes 73 to 78 */
#define INST_STR_EQ			73
#define INST_STR_NEQ			74
#define INST_STR_CMP			75
#define INST_STR_LEN			76
#define INST_STR_INDEX			77
#define INST_STR_MATCH			78

/* Opcodes 78 to 81 */
#define INST_LIST			79
#define INST_LIST_INDEX			80
#define INST_LIST_LENGTH		81

/* Opcodes 82 to 87 */
#define INST_APPEND_SCALAR1		82
#define INST_APPEND_SCALAR4		83
#define INST_APPEND_ARRAY1		84
#define INST_APPEND_ARRAY4		85
#define INST_APPEND_ARRAY_STK		86
#define INST_APPEND_STK			87

/* Opcodes 88 to 93 */
#define INST_LAPPEND_SCALAR1		88
#define INST_LAPPEND_SCALAR4		89
#define INST_LAPPEND_ARRAY1		90
#define INST_LAPPEND_ARRAY4		91
#define INST_LAPPEND_ARRAY_STK		92
#define INST_LAPPEND_STK		93

/* TIP #22 - LINDEX operator with flat arg list */

#define INST_LIST_INDEX_MULTI		94

/*
 * TIP #33 - 'lset' command. Code gen also required a Forth-like
 *	     OVER operation.
 */

#define INST_OVER			95
#define INST_LSET_LIST			96
#define INST_LSET_FLAT			97

/* TIP#90 - 'return' command. */

#define INST_RETURN_IMM			98

/* TIP#123 - exponentiation operator. */

#define INST_EXPON			99

/* TIP #157 - {*}... (word expansion) language syntax support. */

#define INST_EXPAND_START		100
#define INST_EXPAND_STKTOP		101
#define INST_INVOKE_EXPANDED		102

/*
 * TIP #57 - 'lassign' command. Code generation requires immediate
 *	     LINDEX and LRANGE operators.
 */

#define INST_LIST_INDEX_IMM		103
#define INST_LIST_RANGE_IMM		104

#define INST_START_CMD			105

#define INST_LIST_IN			106
#define INST_LIST_NOT_IN		107

#define INST_PUSH_RETURN_OPTIONS	108
#define INST_RETURN_STK			109

/*
 * Dictionary (TIP#111) related commands.
 */

#define INST_DICT_GET			110
#define INST_DICT_SET			111
#define INST_DICT_UNSET			112
#define INST_DICT_INCR_IMM		113
#define INST_DICT_APPEND		114
#define INST_DICT_LAPPEND		115
#define INST_DICT_FIRST			116
#define INST_DICT_NEXT			117
#define INST_DICT_DONE			118
#define INST_DICT_UPDATE_START		119
#define INST_DICT_UPDATE_END		120

/*
 * Instruction to support jumps defined by tables (instead of the classic
 * [switch] technique of chained comparisons).
 */

#define INST_JUMP_TABLE			121

/*
 * Instructions to support compilation of global, variable, upvar and
 * [namespace upvar].
 */

#define INST_UPVAR			122
#define INST_NSUPVAR			123
#define INST_VARIABLE			124

/* Instruction to support compiling syntax error to bytecode */

#define INST_SYNTAX			125

/* Instruction to reverse N items on top of stack */

#define INST_REVERSE			126

/* regexp instruction */

#define INST_REGEXP			127

/* For [info exists] compilation */
#define INST_EXIST_SCALAR		128
#define INST_EXIST_ARRAY		129
#define INST_EXIST_ARRAY_STK		130
#define INST_EXIST_STK			131

/* For [subst] compilation */
#define INST_NOP			132
#define INST_RETURN_CODE_BRANCH		133

/* For [unset] compilation */
#define INST_UNSET_SCALAR		134
#define INST_UNSET_ARRAY		135
#define INST_UNSET_ARRAY_STK		136
#define INST_UNSET_STK			137

/* For [dict with], [dict exists], [dict create] and [dict merge] */
#define INST_DICT_EXPAND		138
#define INST_DICT_RECOMBINE_STK		139
#define INST_DICT_RECOMBINE_IMM		140
#define INST_DICT_EXISTS		141
#define INST_DICT_VERIFY		142

/* For [string map] and [regsub] compilation */
#define INST_STR_MAP			143
#define INST_STR_FIND			144
#define INST_STR_FIND_LAST		145
#define INST_STR_RANGE_IMM		146
#define INST_STR_RANGE			147

/* For operations to do with coroutines and other NRE-manipulators */
#define INST_YIELD			148
#define INST_COROUTINE_NAME		149
#define INST_TAILCALL			150

/* For compilation of basic information operations */
#define INST_NS_CURRENT			151
#define INST_INFO_LEVEL_NUM		152
#define INST_INFO_LEVEL_ARGS		153
#define INST_RESOLVE_COMMAND		154
#define INST_TCLOO_SELF			155
#define INST_TCLOO_CLASS		156
#define INST_TCLOO_NS			157
#define INST_TCLOO_IS_OBJECT		158

/* For compilation of [array] subcommands */
#define INST_ARRAY_EXISTS_STK		159
#define INST_ARRAY_EXISTS_IMM		160
#define INST_ARRAY_MAKE_STK		161
#define INST_ARRAY_MAKE_IMM		162

#define INST_INVOKE_REPLACE		163

/* The last opcode */
#define LAST_INST_OPCODE		163
 
/*
 * Table describing the Tcl bytecode instructions: their name (for displaying
 * code), total number of code bytes required (including operand bytes), and a
 * description of the type of each operand. These operand types include signed
 * and unsigned integers of length one and four bytes. The unsigned integers
 * are used for indexes or for, e.g., the count of objects to push in a "push"
 * instruction.
 */

#define MAX_INSTRUCTION_OPERANDS 2

typedef enum InstOperandType {
    OPERAND_NONE,
    OPERAND_INT1,		/* One byte signed integer. */
    OPERAND_INT4,		/* Four byte signed integer. */
    OPERAND_UINT1,		/* One byte unsigned integer. */
    OPERAND_UINT4,		/* Four byte unsigned integer. */
    OPERAND_IDX4,		/* Four byte signed index (actually an
				 * integer, but displayed differently.) */
    OPERAND_LVT1,		/* One byte unsigned index into the local
				 * variable table. */
    OPERAND_LVT4,		/* Four byte unsigned index into the local
				 * variable table. */
    OPERAND_AUX4		/* Four byte unsigned index into the aux data
				 * table. */
} InstOperandType;

typedef struct InstructionDesc {
    const char *name;		/* Name of instruction. */
    int numBytes;		/* Total number of bytes for instruction. */
    int stackEffect;		/* The worst-case balance stack effect of the
				 * instruction, used for stack requirements
				 * computations. The value INT_MIN signals
				 * that the instruction's worst case effect is
				 * (1-opnd1). */
    int numOperands;		/* Number of operands. */
    InstOperandType opTypes[MAX_INSTRUCTION_OPERANDS];
				/* The type of each operand. */
} InstructionDesc;

MODULE_SCOPE InstructionDesc const tclInstructionTable[];

/*
 * Compilation of some Tcl constructs such as if commands and the logical or
 * (||) and logical and (&&) operators in expressions requires the generation
 * of forward jumps. Since the PC target of these jumps isn't known when the
 * jumps are emitted, we record the offset of each jump in an array of
 * JumpFixup structures. There is one array for each sequence of jumps to one
 * target PC. When we learn the target PC, we update the jumps with the
 * correct distance. Also, if the distance is too great (> 127 bytes), we
 * replace the single-byte jump with a four byte jump instruction, move the
 * instructions after the jump down, and update the code offsets for any
 * commands between the jump and the target.
 */

typedef enum {
    TCL_UNCONDITIONAL_JUMP,
    TCL_TRUE_JUMP,
    TCL_FALSE_JUMP
} TclJumpType;

typedef struct JumpFixup {
    TclJumpType jumpType;	/* Indicates the kind of jump. */
    int codeOffset;		/* Offset of the first byte of the one-byte
				 * forward jump's code. */
    int cmdIndex;		/* Index of the first command after the one
				 * for which the jump was emitted. Used to
				 * update the code offsets for subsequent
				 * commands if the two-byte jump at jumpPc
				 * must be replaced with a five-byte one. */
    int exceptIndex;		/* Index of the first range entry in the
				 * ExceptionRange array after the current one.
				 * This field is used to adjust the code
				 * offsets in subsequent ExceptionRange
				 * records when a jump is grown from 2 bytes
				 * to 5 bytes. */
} JumpFixup;

#define JUMPFIXUP_INIT_ENTRIES	10

typedef struct JumpFixupArray {
    JumpFixup *fixup;		/* Points to start of jump fixup array. */
    int next;			/* Index of next free array entry. */
    int end;			/* Index of last usable entry in array. */
    int mallocedArray;		/* 1 if array was expanded and fixups points
				 * into the heap, else 0. */
    JumpFixup staticFixupSpace[JUMPFIXUP_INIT_ENTRIES];
				/* Initial storage for jump fixup array. */
} JumpFixupArray;

/*
 * The structure describing one variable list of a foreach command. Note that
 * only foreach commands inside procedure bodies are compiled inline so a
 * ForeachVarList structure always describes local variables. Furthermore,
 * only scalar variables are supported for inline-compiled foreach loops.
 */

typedef struct ForeachVarList {
    int numVars;		/* The number of variables in the list. */
    int varIndexes[1];		/* An array of the indexes ("slot numbers")
				 * for each variable in the procedure's array
				 * of local variables. Only scalar variables
				 * are supported. The actual size of this
				 * field will be large enough to numVars
				 * indexes. THIS MUST BE THE LAST FIELD IN THE
				 * STRUCTURE! */
} ForeachVarList;

/*
 * Structure used to hold information about a foreach command that is needed
 * during program execution. These structures are stored in CompileEnv and
 * ByteCode structures as auxiliary data.
 */

typedef struct ForeachInfo {
    int numLists;		/* The number of both the variable and value
				 * lists of the foreach command. */
    int firstValueTemp;		/* Index of the first temp var in a proc frame
				 * used to point to a value list. */
    int loopCtTemp;		/* Index of temp var in a proc frame holding
				 * the loop's iteration count. Used to
				 * determine next value list element to assign
				 * each loop var. */
    ForeachVarList *varLists[1];/* An array of pointers to ForeachVarList
				 * structures describing each var list. The
				 * actual size of this field will be large
				 * enough to numVars indexes. THIS MUST BE THE
				 * LAST FIELD IN THE STRUCTURE! */
} ForeachInfo;

MODULE_SCOPE const AuxDataType tclForeachInfoType;

/*
 * Structure used to hold information about a switch command that is needed
 * during program execution. These structures are stored in CompileEnv and
 * ByteCode structures as auxiliary data.
 */

typedef struct JumptableInfo {
    Tcl_HashTable hashTable;	/* Hash that maps strings to signed ints (PC
				 * offsets). */
} JumptableInfo;

MODULE_SCOPE const AuxDataType tclJumptableInfoType;

/*
 * Structure used to hold information about a [dict update] command that is
 * needed during program execution. These structures are stored in CompileEnv
 * and ByteCode structures as auxiliary data.
 */

typedef struct {
    int length;			/* Size of array */
    int varIndices[1];		/* Array of variable indices to manage when
				 * processing the start and end of a [dict
				 * update]. There is really more than one
				 * entry, and the structure is allocated to
				 * take account of this. MUST BE LAST FIELD IN
				 * STRUCTURE. */
} DictUpdateInfo;

MODULE_SCOPE const AuxDataType tclDictUpdateInfoType;

 
/*
 *----------------------------------------------------------------
 * Procedures shared among Tcl bytecode compilation and execution modules but
 * not used outside:
 *----------------------------------------------------------------
 */

MODULE_SCOPE void	TclCleanupByteCode(ByteCode *codePtr);
MODULE_SCOPE void	TclCompileCmdWord(Tcl_Interp *interp,
			    Tcl_Token *tokenPtr, int count,
			    CompileEnv *envPtr);
MODULE_SCOPE void	TclCompileExpr(Tcl_Interp *interp, const char *script,
			    int numBytes, CompileEnv *envPtr, int optimize);
MODULE_SCOPE void	TclCompileExprWords(Tcl_Interp *interp,
			    Tcl_Token *tokenPtr, int numWords,
			    CompileEnv *envPtr);
MODULE_SCOPE void	TclCompileScript(Tcl_Interp *interp,
			    const char *script, int numBytes,
			    CompileEnv *envPtr);
MODULE_SCOPE void	TclCompileSyntaxError(Tcl_Interp *interp,
			    CompileEnv *envPtr);
MODULE_SCOPE void	TclCompileTokens(Tcl_Interp *interp,
			    Tcl_Token *tokenPtr, int count,
			    CompileEnv *envPtr);
MODULE_SCOPE void	TclCompileVarSubst(Tcl_Interp *interp,
			    Tcl_Token *tokenPtr, CompileEnv *envPtr);
MODULE_SCOPE int	TclCreateAuxData(ClientData clientData,
			    const AuxDataType *typePtr, CompileEnv *envPtr);
MODULE_SCOPE int	TclCreateExceptRange(ExceptionRangeType type,
			    CompileEnv *envPtr);
MODULE_SCOPE void	TclEmitForwardJump(CompileEnv *envPtr,
			    TclJumpType jumpType, JumpFixup *jumpFixupPtr);
MODULE_SCOPE ExceptionRange * TclGetExceptionRangeForPc(unsigned char *pc,
			    int catchOnly, ByteCode *codePtr);
MODULE_SCOPE void	TclExpandJumpFixupArray(JumpFixupArray *fixupArrayPtr);
MODULE_SCOPE void	TclFinalizeAuxDataTypeTable(void);
MODULE_SCOPE int	TclFindCompiledLocal(const char *name, int nameChars,
			    int create, CompileEnv *envPtr);
MODULE_SCOPE LiteralEntry * TclLookupLiteralEntry(Tcl_Interp *interp,
			    Tcl_Obj *objPtr);
MODULE_SCOPE int	TclFixupForwardJump(CompileEnv *envPtr,
			    JumpFixup *jumpFixupPtr, int jumpDist,
			    int distThreshold);
MODULE_SCOPE void	TclFreeCompileEnv(CompileEnv *envPtr);
MODULE_SCOPE void	TclFreeJumpFixupArray(JumpFixupArray *fixupArrayPtr);
MODULE_SCOPE void	TclInitAuxDataTypeTable(void);
MODULE_SCOPE void	TclInitByteCodeObj(Tcl_Obj *objPtr,
			    CompileEnv *envPtr);
MODULE_SCOPE void	TclInitCompilation(void);
MODULE_SCOPE void	TclInitJumpFixupArray(JumpFixupArray *fixupArrayPtr);
#ifdef TCL_COMPILE_DEBUG
MODULE_SCOPE void	TclPrintByteCodeObj(Tcl_Interp *interp,
			    Tcl_Obj *objPtr);
#endif
MODULE_SCOPE int	TclPrintInstruction(ByteCode *codePtr,
			    const unsigned char *pc);
MODULE_SCOPE void	TclPrintObject(FILE *outFile,
			    Tcl_Obj *objPtr, int maxChars);
MODULE_SCOPE void	TclPrintSource(FILE *outFile,
			    const char *string, int maxChars);
MODULE_SCOPE void	TclRegisterAuxDataType(const AuxDataType *typePtr);
MODULE_SCOPE int	TclRegisterLiteral(CompileEnv *envPtr,
			    char *bytes, int length, int flags);
#ifdef TCL_COMPILE_DEBUG
MODULE_SCOPE void	TclVerifyGlobalLiteralTable(Interp *iPtr);
MODULE_SCOPE void	TclVerifyLocalLiteralTable(CompileEnv *envPtr);
#endif
MODULE_SCOPE int	TclWordKnownAtCompileTime(Tcl_Token *tokenPtr,
			    Tcl_Obj *valuePtr);
 
/*
 *----------------------------------------------------------------
 * Macros and flag values used by Tcl bytecode compilation and execution
 * modules inside the Tcl core but not used outside.
 *----------------------------------------------------------------
 */

#define LITERAL_ON_HEAP		0x01
#define LITERAL_CMD_NAME	0x02

/*
 * Form of TclRegisterLiteral with flags == 0. In that case, it is safe to
 * cast away constness, and it is cleanest to do that here, all in one place.
 *
 * int TclRegisterNewLiteral(CompileEnv *envPtr, const char *bytes,
 *			     int length);
 */

#define TclRegisterNewLiteral(envPtr, bytes, length) \
    TclRegisterLiteral(envPtr, (char *)(bytes), length, /*flags*/ 0)

/*
 * Form of TclRegisterLiteral with flags == LITERAL_CMD_NAME. In that case, it
 * is safe to cast away constness, and it is cleanest to do that here, all in
 * one place.
 *
 * int TclRegisterNewNSLiteral(CompileEnv *envPtr, const char *bytes,
 *			       int length);
 */

#define TclRegisterNewCmdLiteral(envPtr, bytes, length) \
    TclRegisterLiteral(envPtr, (char *)(bytes), length, LITERAL_CMD_NAME)

/*
 * Macro used to manually adjust the stack requirements; used in cases where
 * the stack effect cannot be computed from the opcode and its operands, but
 * is still known at compile time.
 *
 * void TclAdjustStackDepth(int delta, CompileEnv *envPtr);
 */

#define TclAdjustStackDepth(delta, envPtr) \
    do {								\
	if ((delta) < 0) {						\
	    if ((envPtr)->maxStackDepth < (envPtr)->currStackDepth) {	\
		(envPtr)->maxStackDepth = (envPtr)->currStackDepth;	\
	    }								\
	}								\
	(envPtr)->currStackDepth += (delta);				\
    } while (0)

/*
 * Macro used to update the stack requirements. It is called by the macros
 * TclEmitOpCode, TclEmitInst1 and TclEmitInst4.
 * Remark that the very last instruction of a bytecode always reduces the
 * stack level: INST_DONE or INST_POP, so that the maxStackdepth is always
 * updated.
 *
 * void TclUpdateStackReqs(unsigned char op, int i, CompileEnv *envPtr);
 */

#define TclUpdateStackReqs(op, i, envPtr) \
    do {							\
	int delta = tclInstructionTable[(op)].stackEffect;	\
	if (delta) {						\
	    if (delta == INT_MIN) {				\
		delta = 1 - (i);				\
	    }							\
	    TclAdjustStackDepth(delta, envPtr);			\
	}							\
    } while (0)

/*
 * Macro to emit an opcode byte into a CompileEnv's code array. The ANSI C
 * "prototype" for this macro is:
 *
 * void TclEmitOpcode(unsigned char op, CompileEnv *envPtr);
 */

#define TclEmitOpcode(op, envPtr) \
    do {							\
	if ((envPtr)->codeNext == (envPtr)->codeEnd) {		\
	    TclExpandCodeArray(envPtr);				\
	}							\
	*(envPtr)->codeNext++ = (unsigned char) (op);		\
	(envPtr)->atCmdStart = ((op) == INST_START_CMD);	\
	TclUpdateStackReqs(op, 0, envPtr);			\
    } while (0)

/*
 * Macros to emit an integer operand. The ANSI C "prototype" for these macros
 * are:
 *
 * void TclEmitInt1(int i, CompileEnv *envPtr);
 * void TclEmitInt4(int i, CompileEnv *envPtr);
 */

#define TclEmitInt1(i, envPtr) \
    do {								\
	if ((envPtr)->codeNext == (envPtr)->codeEnd) {			\
	    TclExpandCodeArray(envPtr);					\
	}								\
	*(envPtr)->codeNext++ = (unsigned char) ((unsigned int) (i));	\
    } while (0)

#define TclEmitInt4(i, envPtr) \
    do {								\
	if (((envPtr)->codeNext + 4) > (envPtr)->codeEnd) {		\
	    TclExpandCodeArray(envPtr);					\
	}								\
	*(envPtr)->codeNext++ =						\
		(unsigned char) ((unsigned int) (i) >> 24);		\
	*(envPtr)->codeNext++ =						\
		(unsigned char) ((unsigned int) (i) >> 16);		\
	*(envPtr)->codeNext++ =						\
		(unsigned char) ((unsigned int) (i) >>  8);		\
	*(envPtr)->codeNext++ =						\
		(unsigned char) ((unsigned int) (i)      );		\
    } while (0)

/*
 * Macros to emit an instruction with signed or unsigned integer operands.
 * Four byte integers are stored in "big-endian" order with the high order
 * byte stored at the lowest address. The ANSI C "prototypes" for these macros
 * are:
 *
 * void TclEmitInstInt1(unsigned char op, int i, CompileEnv *envPtr);
 * void TclEmitInstInt4(unsigned char op, int i, CompileEnv *envPtr);
 */

#define TclEmitInstInt1(op, i, envPtr) \
    do {								\
	if (((envPtr)->codeNext + 2) > (envPtr)->codeEnd) {		\
	    TclExpandCodeArray(envPtr);					\
	}								\
	*(envPtr)->codeNext++ = (unsigned char) (op);			\
	*(envPtr)->codeNext++ = (unsigned char) ((unsigned int) (i));	\
	(envPtr)->atCmdStart = ((op) == INST_START_CMD);		\
	TclUpdateStackReqs(op, i, envPtr);				\
    } while (0)

#define TclEmitInstInt4(op, i, envPtr) \
    do {							\
	if (((envPtr)->codeNext + 5) > (envPtr)->codeEnd) {	\
	    TclExpandCodeArray(envPtr);				\
	}							\
	*(envPtr)->codeNext++ = (unsigned char) (op);		\
	*(envPtr)->codeNext++ =					\
		(unsigned char) ((unsigned int) (i) >> 24);	\
	*(envPtr)->codeNext++ =					\
		(unsigned char) ((unsigned int) (i) >> 16);	\
	*(envPtr)->codeNext++ =					\
		(unsigned char) ((unsigned int) (i) >>  8);	\
	*(envPtr)->codeNext++ =					\
		(unsigned char) ((unsigned int) (i)      );	\
	(envPtr)->atCmdStart = ((op) == INST_START_CMD);	\
	TclUpdateStackReqs(op, i, envPtr);			\
    } while (0)

/*
 * Macro to push a Tcl object onto the Tcl evaluation stack. It emits the
 * object's one or four byte array index into the CompileEnv's code array.
 * These support, respectively, a maximum of 256 (2**8) and 2**32 objects in a
 * CompileEnv. The ANSI C "prototype" for this macro is:
 *
 * void	TclEmitPush(int objIndex, CompileEnv *envPtr);
 */

#define TclEmitPush(objIndex, envPtr) \
    do {							 \
	register int objIndexCopy = (objIndex);			 \
	if (objIndexCopy <= 255) {				 \
	    TclEmitInstInt1(INST_PUSH1, objIndexCopy, (envPtr)); \
	} else {						 \
	    TclEmitInstInt4(INST_PUSH4, objIndexCopy, (envPtr)); \
	}							 \
    } while (0)

/*
 * Macros to update a (signed or unsigned) integer starting at a pointer. The
 * two variants depend on the number of bytes. The ANSI C "prototypes" for
 * these macros are:
 *
 * void TclStoreInt1AtPtr(int i, unsigned char *p);
 * void TclStoreInt4AtPtr(int i, unsigned char *p);
 */

#define TclStoreInt1AtPtr(i, p) \
    *(p)   = (unsigned char) ((unsigned int) (i))

#define TclStoreInt4AtPtr(i, p) \
    do {							\
	*(p)   = (unsigned char) ((unsigned int) (i) >> 24);	\
	*(p+1) = (unsigned char) ((unsigned int) (i) >> 16);	\
	*(p+2) = (unsigned char) ((unsigned int) (i) >>  8);	\
	*(p+3) = (unsigned char) ((unsigned int) (i)      );	\
    } while (0)

/*
 * Macros to update instructions at a particular pc with a new op code and a
 * (signed or unsigned) int operand. The ANSI C "prototypes" for these macros
 * are:
 *
 * void TclUpdateInstInt1AtPc(unsigned char op, int i, unsigned char *pc);
 * void TclUpdateInstInt4AtPc(unsigned char op, int i, unsigned char *pc);
 */

#define TclUpdateInstInt1AtPc(op, i, pc) \
    do {					\
	*(pc) = (unsigned char) (op);		\
	TclStoreInt1AtPtr((i), ((pc)+1));	\
    } while (0)

#define TclUpdateInstInt4AtPc(op, i, pc) \
    do {					\
	*(pc) = (unsigned char) (op);		\
	TclStoreInt4AtPtr((i), ((pc)+1));	\
    } while (0)

/*
 * Macro to fix up a forward jump to point to the current code-generation
 * position in the bytecode being created (the most common case). The ANSI C
 * "prototypes" for this macro is:
 *
 * int TclFixupForwardJumpToHere(CompileEnv *envPtr, JumpFixup *fixupPtr,
 *				 int threshold);
 */

#define TclFixupForwardJumpToHere(envPtr, fixupPtr, threshold) \
    TclFixupForwardJump((envPtr), (fixupPtr),				\
	    (envPtr)->codeNext-(envPtr)->codeStart-(fixupPtr)->codeOffset, \
	    (threshold))

/*
 * Macros to get a signed integer (GET_INT{1,2}) or an unsigned int
 * (GET_UINT{1,2}) from a pointer. There are two variants for each return type
 * that depend on the number of bytes fetched. The ANSI C "prototypes" for
 * these macros are:
 *
 * int TclGetInt1AtPtr(unsigned char *p);
 * int TclGetInt4AtPtr(unsigned char *p);
 * unsigned int TclGetUInt1AtPtr(unsigned char *p);
 * unsigned int TclGetUInt4AtPtr(unsigned char *p);
 */

/*
 * The TclGetInt1AtPtr macro is tricky because we want to do sign extension on
 * the 1-byte value. Unfortunately the "char" type isn't signed on all
 * platforms so sign-extension doesn't always happen automatically. Sometimes
 * we can explicitly declare the pointer to be signed, but other times we have
 * to explicitly sign-extend the value in software.
 */

#ifndef __CHAR_UNSIGNED__
#   define TclGetInt1AtPtr(p) ((int) *((char *) p))
#elif defined(HAVE_SIGNED_CHAR)
#   define TclGetInt1AtPtr(p) ((int) *((signed char *) p))
#else
#   define TclGetInt1AtPtr(p) \
    (((int) *((char *) p)) | ((*(p) & 0200) ? (-256) : 0))
#endif

#define TclGetInt4AtPtr(p) \
    (((int) TclGetInt1AtPtr(p) << 24) |				\
		     (*((p)+1) << 16) |				\
		     (*((p)+2) <<  8) |				\
		     (*((p)+3)))

#define TclGetUInt1AtPtr(p) \
    ((unsigned int) *(p))
#define TclGetUInt4AtPtr(p) \
    ((unsigned int) (*(p)     << 24) |				\
		    (*((p)+1) << 16) |				\
		    (*((p)+2) <<  8) |				\
		    (*((p)+3)))

/*
 * Macros used to compute the minimum and maximum of two integers. The ANSI C
 * "prototypes" for these macros are:
 *
 * int TclMin(int i, int j);
 * int TclMax(int i, int j);
 */

#define TclMin(i, j)	((((int) i) < ((int) j))? (i) : (j))
#define TclMax(i, j)	((((int) i) > ((int) j))? (i) : (j))

/*
 * Convenience macro for use when compiling bodies of commands. The ANSI C
 * "prototype" for this macro is:
 *
 * static void		CompileBody(CompileEnv *envPtr, Tcl_Token *tokenPtr,
 *			    Tcl_Interp *interp);
 */

#define CompileBody(envPtr, tokenPtr, interp) \
    TclCompileCmdWord((interp), (tokenPtr)+1, (tokenPtr)->numComponents, \
	    (envPtr))

/*
 * Convenience macro for use when compiling tokens to be pushed. The ANSI C
 * "prototype" for this macro is:
 *
 * static void		CompileTokens(CompileEnv *envPtr, Tcl_Token *tokenPtr,
 *			    Tcl_Interp *interp);
 */

#define CompileTokens(envPtr, tokenPtr, interp) \
    TclCompileTokens((interp), (tokenPtr)+1, (tokenPtr)->numComponents, \
	    (envPtr));
/*
 * Convenience macro for use when pushing literals. The ANSI C "prototype" for
 * this macro is:
 *
 * static void		PushLiteral(CompileEnv *envPtr,
 *			    const char *string, int length);
 */

#define PushLiteral(envPtr, string, length) \
    TclEmitPush(TclRegisterNewLiteral((envPtr), (string), (length)), (envPtr))

/*
 * Macro to advance to the next token; it is more mnemonic than the address
 * arithmetic that it replaces. The ANSI C "prototype" for this macro is:
 *
 * static Tcl_Token *	TokenAfter(Tcl_Token *tokenPtr);
 */

#define TokenAfter(tokenPtr) \
    ((tokenPtr) + ((tokenPtr)->numComponents + 1))

/*
 * Macro to get the offset to the next instruction to be issued. The ANSI C
 * "prototype" for this macro is:
 *
 * static int	CurrentOffset(CompileEnv *envPtr);
 */

#define CurrentOffset(envPtr) \
    ((envPtr)->codeNext - (envPtr)->codeStart)

/*
 * Note: the exceptDepth is a bit of a misnomer: TEBC only needs the
 * maximal depth of nested CATCH ranges in order to alloc runtime
 * memory. These macros should compute precisely that? OTOH, the nesting depth
 * of LOOP ranges is an interesting datum for debugging purposes, and that is
 * what we compute now.
 *
 * static int	DeclareExceptionRange(CompileEnv *envPtr, int type);
 * static int	ExceptionRangeStarts(CompileEnv *envPtr, int index);
 * static void	ExceptionRangeEnds(CompileEnv *envPtr, int index);
 * static void	ExceptionRangeTarget(CompileEnv *envPtr, int index, LABEL);
 */

#define DeclareExceptionRange(envPtr, type) \
    (TclCreateExceptRange((type), (envPtr)))
#define ExceptionRangeStarts(envPtr, index) \
    (((envPtr)->exceptDepth++),						\
    ((envPtr)->maxExceptDepth =						\
	    TclMax((envPtr)->exceptDepth, (envPtr)->maxExceptDepth)),	\
    ((envPtr)->exceptArrayPtr[(index)].codeOffset = CurrentOffset(envPtr)))
#define ExceptionRangeEnds(envPtr, index) \
    (((envPtr)->exceptDepth--),						\
    ((envPtr)->exceptArrayPtr[(index)].numCodeBytes =			\
	CurrentOffset(envPtr) - (envPtr)->exceptArrayPtr[(index)].codeOffset))
#define ExceptionRangeTarget(envPtr, index, targetType) \
    ((envPtr)->exceptArrayPtr[(index)].targetType = CurrentOffset(envPtr))

/*
 * Check if there is an LVT for compiled locals
 */

#define EnvHasLVT(envPtr) \
    (envPtr->procPtr || envPtr->iPtr->varFramePtr->localCachePtr)

/*
 * Macros for making it easier to deal with tokens and DStrings.
 */

#define TclDStringAppendToken(dsPtr, tokenPtr) \
    Tcl_DStringAppend((dsPtr), (tokenPtr)->start, (tokenPtr)->size)
#define TclRegisterDStringLiteral(envPtr, dsPtr) \
    TclRegisterLiteral(envPtr, Tcl_DStringValue(dsPtr), \
	    Tcl_DStringLength(dsPtr), /*flags*/ 0)

#endif /* _TCLENGINEINT */
 
/*
 * Local Variables:
 * mode: c
 * c-basic-offset: 4
 * fill-column: 78
 * End:
 */

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 * Copyright (c) 2005-2013 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"

/*
 * Declarations for functions local to this file:
 */

static inline Tcl_Obj *	NewNsObj(Tcl_Namespace *namespacePtr);
static inline int	EnsembleUnknownCallback(Tcl_Interp *interp,
................................................................................
static void		DeleteEnsembleConfig(ClientData clientData);
static void		MakeCachedEnsembleCommand(Tcl_Obj *objPtr,
			    EnsembleConfig *ensemblePtr,
			    const char *subcmdName, Tcl_Obj *prefixObjPtr);
static void		FreeEnsembleCmdRep(Tcl_Obj *objPtr);
static void		DupEnsembleCmdRep(Tcl_Obj *objPtr, Tcl_Obj *copyPtr);
static void		StringOfEnsembleCmdRep(Tcl_Obj *objPtr);
static int		CompileToCompiledCommand(Tcl_Interp *interp,
			    Tcl_Parse *parsePtr, int depth, Command *cmdPtr,
			    CompileEnv *envPtr);
static void		CompileToInvokedCommand(Tcl_Interp *interp,
			    Tcl_Parse *parsePtr, Tcl_Obj *replacements,
			    Command *cmdPtr, CompileEnv *envPtr);
static int		CompileBasicNArgCommand(Tcl_Interp *interp,
			    Tcl_Parse *parsePtr, Command *cmdPtr,
			    CompileEnv *envPtr);

/*
 * The lists of subcommands and options for the [namespace ensemble] command.
 */

static const char *const ensembleSubcommands[] = {
    "configure", "create", "exists", NULL
................................................................................
    EnsembleCmdRep *ensembleCmd = objPtr->internalRep.otherValuePtr;
    int length = strlen(ensembleCmd->fullSubcmdName);

    objPtr->length = length;
    objPtr->bytes = ckalloc(length + 1);
    memcpy(objPtr->bytes, ensembleCmd->fullSubcmdName, (unsigned) length+1);
}
 
/*
 *----------------------------------------------------------------------
 *
 * TclCompileEnsemble --
 *
 *	Procedure called to compile an ensemble command. Note that most
 *	ensembles are not compiled, since modifying a compiled ensemble causes
 *	a invalidation of all existing bytecode (expensive!) which is not
 *	normally warranted.
 *
 * 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 subcommands of the
 *	ensemble at runtime if a compile-time mapping is possible.
 *
 *----------------------------------------------------------------------
 */

int
TclCompileEnsemble(
    Tcl_Interp *interp,		/* Used for error reporting. */
    Tcl_Parse *parsePtr,	/* Points to a parse structure for the command
				 * created by Tcl_ParseCommand. */
    Command *cmdPtr,		/* Points to defintion of command being
				 * compiled. */
    CompileEnv *envPtr)		/* Holds resulting instructions. */
{
    Tcl_Token *tokenPtr = TokenAfter(parsePtr->tokenPtr);
    Tcl_Obj *mapObj, *subcmdObj, *targetCmdObj, *listObj, **elems;
    Tcl_Obj *replaced = Tcl_NewObj(), *replacement;
    Tcl_Command ensemble = (Tcl_Command) cmdPtr;
    Command *oldCmdPtr = cmdPtr, *newCmdPtr;
    int len, result, flags = 0, i, depth = 1, invokeAnyway = 0;
    int ourResult = TCL_ERROR;
    unsigned numBytes;
    const char *word;

    Tcl_IncrRefCount(replaced);

    /*
     * This is where we return to if we are parsing multiple nested compiled
     * ensembles. [info object] is such a beast.
     */

  checkNextWord:
    if (parsePtr->numWords < depth + 1) {
	goto failed;
    }
    if (tokenPtr->type != TCL_TOKEN_SIMPLE_WORD) {
	/*
	 * Too hard.
	 */

	goto failed;
    }

    word = tokenPtr[1].start;
    numBytes = tokenPtr[1].size;

    /*
     * There's a sporting chance we'll be able to compile this. But now we
     * must check properly. To do that, check that we're compiling an ensemble
     * that has a compilable command as its appropriate subcommand.
     */

    if (Tcl_GetEnsembleMappingDict(NULL, ensemble, &mapObj) != TCL_OK
	    || mapObj == NULL) {
	/*
	 * Either not an ensemble or a mapping isn't installed. Crud. Too hard
	 * to proceed.
	 */

	goto failed;
    }

    /*
     * Also refuse to compile anything that uses a formal parameter list for
     * now, on the grounds that it is too complex.
     */

    if (Tcl_GetEnsembleParameterList(NULL, ensemble, &listObj) != TCL_OK
	    || listObj != NULL) {
	/*
	 * Figuring out how to compile this has become too much. Bail out.
	 */

	goto failed;
    }

    /*
     * Next, get the flags. We need them on several code paths so that we can
     * know whether we're to do prefix matching.
     */

    (void) Tcl_GetEnsembleFlags(NULL, ensemble, &flags);

    /*
     * Check to see if there's also a subcommand list; must check to see if
     * the subcommand we are calling is in that list if it exists, since that
     * list filters the entries in the map.
     */

    (void) Tcl_GetEnsembleSubcommandList(NULL, ensemble, &listObj);
    if (listObj != NULL) {
	int sclen;
	const char *str;
	Tcl_Obj *matchObj = NULL;

	if (Tcl_ListObjGetElements(NULL, listObj, &len, &elems) != TCL_OK) {
	    goto failed;
	}
	for (i=0 ; i<len ; i++) {
	    str = Tcl_GetStringFromObj(elems[i], &sclen);
	    if ((sclen == (int) numBytes) && !memcmp(word, str, numBytes)) {
		/*
		 * Exact match! Excellent!
		 */

		result = Tcl_DictObjGet(NULL, mapObj,elems[i], &targetCmdObj);
		if (result != TCL_OK || targetCmdObj == NULL) {
		    goto failed;
		}
		replacement = elems[i];
		goto doneMapLookup;
	    }

	    /*
	     * Check to see if we've got a prefix match. A single prefix match
	     * is fine, and allows us to refine our dictionary lookup, but
	     * multiple prefix matches is a Bad Thing and will prevent us from
	     * making progress. Note that we cannot do the lookup immediately
	     * in the prefix case; might be another entry later in the list
	     * that causes things to fail.
	     */

	    if ((flags & TCL_ENSEMBLE_PREFIX)
		    && strncmp(word, str, numBytes) == 0) {
		if (matchObj != NULL) {
		    goto failed;
		}
		matchObj = elems[i];
	    }
	}
	if (matchObj == NULL) {
	    goto failed;
	}
	result = Tcl_DictObjGet(NULL, mapObj, matchObj, &targetCmdObj);
	if (result != TCL_OK || targetCmdObj == NULL) {
	    goto failed;
	}
	replacement = matchObj;
    } else {
	Tcl_DictSearch s;
	int done, matched;
	Tcl_Obj *tmpObj;

	/*
	 * No map, so check the dictionary directly.
	 */

	TclNewStringObj(subcmdObj, word, (int) numBytes);
	result = Tcl_DictObjGet(NULL, mapObj, subcmdObj, &targetCmdObj);
	if (result == TCL_OK && targetCmdObj != NULL) {
	    /*
	     * Got it. Skip the fiddling around with prefixes.
	     */

	    replacement = subcmdObj;
	    goto doneMapLookup;
	}
	TclDecrRefCount(subcmdObj);

	/*
	 * We've not literally got a valid subcommand. But maybe we have a
	 * prefix. Check if prefix matches are allowed.
	 */

	if (!(flags & TCL_ENSEMBLE_PREFIX)) {
	    goto failed;
	}

	/*
	 * Iterate over the keys in the dictionary, checking to see if we're a
	 * prefix.
	 */

	Tcl_DictObjFirst(NULL, mapObj, &s, &subcmdObj, &tmpObj, &done);
	matched = 0;
	replacement = NULL;		/* Silence, fool compiler! */
	while (!done) {
	    if (strncmp(TclGetString(subcmdObj), word, numBytes) == 0) {
		if (matched++) {
		    /*
		     * Must have matched twice! Not unique, so no point
		     * looking further.
		     */

		    break;
		}
		replacement = subcmdObj;
		targetCmdObj = tmpObj;
	    }
	    Tcl_DictObjNext(&s, &subcmdObj, &tmpObj, &done);
	}
	Tcl_DictObjDone(&s);

	/*
	 * If we have anything other than a single match, we've failed the
	 * unique prefix check.
	 */

	if (matched != 1) {
	    invokeAnyway = 1;
	    goto failed;
	}
    }

    /*
     * OK, we definitely map to something. But what?
     *
     * The command we map to is the first word out of the map element. Note
     * that we also reject dealing with multi-element rewrites if we are in a
     * safe interpreter, as there is otherwise a (highly gnarly!) way to make
     * Tcl crash open to exploit.
     */

  doneMapLookup:
    Tcl_ListObjAppendElement(NULL, replaced, replacement);
    if (Tcl_ListObjGetElements(NULL, targetCmdObj, &len, &elems) != TCL_OK) {
	goto failed;
    } else if (len != 1) {
	/*
	 * Note that at this point we know we can't issue any special
	 * instruction sequence as the mapping isn't one that we support at
	 * the compiled level.
	 */

	goto cleanup;
    }
    targetCmdObj = elems[0];

    oldCmdPtr = cmdPtr;
    Tcl_IncrRefCount(targetCmdObj);
    newCmdPtr = (Command *) Tcl_GetCommandFromObj(interp, targetCmdObj);
    TclDecrRefCount(targetCmdObj);
    if (newCmdPtr == NULL || Tcl_IsSafe(interp)
	    || newCmdPtr->nsPtr->flags & NS_SUPPRESS_COMPILATION
	    || newCmdPtr->flags & CMD_HAS_EXEC_TRACES
	    || ((Interp *)interp)->flags & DONT_COMPILE_CMDS_INLINE) {
	/*
	 * Maps to an undefined command or a command without a compiler.
	 * Cannot compile.
	 */

	goto cleanup;
    }
    cmdPtr = newCmdPtr;
    depth++;

    /*
     * See whether we have a nested ensemble. If we do, we can go round the
     * mulberry bush again, consuming the next word.
     */

    if (cmdPtr->compileProc == TclCompileEnsemble) {
	tokenPtr = TokenAfter(tokenPtr);
	ensemble = (Tcl_Command) cmdPtr;
	goto checkNextWord;
    }

    /*
     * Now we've done the mapping process, can now actually try to compile.
     * If there is a subcommand compiler and that successfully produces code,
     * we'll use that. Otherwise, we fall back to generating opcodes to do the
     * invoke at runtime.
     */

    invokeAnyway = 1;
    if (CompileToCompiledCommand(interp, parsePtr, depth, cmdPtr,
	    envPtr) == TCL_OK) {
	ourResult = TCL_OK;
	goto cleanup;
    }

    /*
     * Failed to do a full compile for some reason. Try to do a direct invoke
     * instead of going through the ensemble lookup process again.
     */

  failed:
    if (depth < 250) {
	if (depth > 1) {
	    if (!invokeAnyway) {
		cmdPtr = oldCmdPtr;
		depth--;
	    }
	    (void) Tcl_ListObjReplace(NULL, replaced, depth, 2, 0, NULL);
	}
	CompileToInvokedCommand(interp, parsePtr, replaced, cmdPtr, envPtr);
	ourResult = TCL_OK;
    }

    /*
     * Release the memory we allocated. If we've got here, we've either done
     * something useful or we're in a case that we can't compile at all and
     * we're just giving up.
     */

  cleanup:
    Tcl_DecrRefCount(replaced);
    return ourResult;
}

/*
 * How to compile a subcommand using its own command compiler. To do that, we
 * have to perform some trickery to rewrite the arguments, as compilers *must*
 * have parse tokens that refer to addresses in the original script.
 */

static int
CompileToCompiledCommand(
    Tcl_Interp *interp,
    Tcl_Parse *parsePtr,
    int depth,
    Command *cmdPtr,
    CompileEnv *envPtr)		/* Holds resulting instructions. */
{
    Tcl_Parse synthetic;
    Tcl_Token *tokenPtr;
    int result, i;
    int savedNumCmds = envPtr->numCommands;
    int savedStackDepth = envPtr->currStackDepth;
    unsigned savedCodeNext = envPtr->codeNext - envPtr->codeStart;

    if (cmdPtr->compileProc == NULL) {
	return TCL_ERROR;
    }

    TclParseInit(interp, NULL, 0, &synthetic);
    synthetic.numWords = parsePtr->numWords - depth + 1;
    TclGrowParseTokenArray(&synthetic, 2);
    synthetic.numTokens = 2;

    /*
     * Now we have the space to work in, install something rewritten. The
     * first word will "officially" be the bytes of the structured ensemble
     * name. That's technically wrong, but nobody will care; we just need
     * *something* here...
     */

    synthetic.tokenPtr[0].type = TCL_TOKEN_SIMPLE_WORD;
    synthetic.tokenPtr[0].start = parsePtr->tokenPtr[0].start;
    synthetic.tokenPtr[0].numComponents = 1;
    synthetic.tokenPtr[1].type = TCL_TOKEN_TEXT;
    synthetic.tokenPtr[1].start = parsePtr->tokenPtr[0].start;
    synthetic.tokenPtr[1].numComponents = 0;
    for (i=0,tokenPtr=parsePtr->tokenPtr ; i<depth ; i++) {
	int sclen = (tokenPtr->start - synthetic.tokenPtr[0].start)
		+ tokenPtr->size;

	synthetic.tokenPtr[0].size = sclen;
	synthetic.tokenPtr[1].size = sclen;
	tokenPtr = TokenAfter(tokenPtr);
    }

    /*
     * Copy over the real argument tokens.
     */

    for (i=1; i<synthetic.numWords; i++) {
	int toCopy;

	toCopy = tokenPtr->numComponents + 1;
	TclGrowParseTokenArray(&synthetic, toCopy);
	memcpy(synthetic.tokenPtr + synthetic.numTokens, tokenPtr,
		sizeof(Tcl_Token) * toCopy);
	synthetic.numTokens += toCopy;
	tokenPtr = TokenAfter(tokenPtr);
    }

    /*
     * Hand off compilation to the subcommand compiler. At last!
     */

    result = cmdPtr->compileProc(interp, &synthetic, cmdPtr, envPtr);

    /*
     * If our target fails to compile, revert the number of commands and the
     * pointer to the place to issue the next instruction. [Bug 3600328]
     */

    if (result != TCL_OK) {
	envPtr->numCommands = savedNumCmds;
	envPtr->currStackDepth = savedStackDepth;
	envPtr->codeNext = envPtr->codeStart + savedCodeNext;
    }

    /*
     * Clean up if necessary.
     */

    Tcl_FreeParse(&synthetic);
    return result;
}

/*
 * How to compile a subcommand to a _replacing_ invoke of its implementation
 * command.
 */

static void
CompileToInvokedCommand(
    Tcl_Interp *interp,
    Tcl_Parse *parsePtr,
    Tcl_Obj *replacements,
    Command *cmdPtr,
    CompileEnv *envPtr)		/* Holds resulting instructions. */
{
    Tcl_Token *tokPtr;
    Tcl_Obj *objPtr, **words;
    char *bytes;
    int length, i, numWords, cmdLit;

    /*
     * Push the words of the command. Take care; the command words may be
     * scripts that have backslashes in them, and [info frame 0] can see the
     * difference. Hence the call to TclContinuationsEnterDerived...
     */

    Tcl_ListObjGetElements(NULL, replacements, &numWords, &words);
    for (i=0,tokPtr=parsePtr->tokenPtr ; i<parsePtr->numWords ; i++) {
	if (i > 0 && i < numWords+1) {
	    bytes = Tcl_GetStringFromObj(words[i-1], &length);
	    PushLiteral(envPtr, bytes, length);
	} else if (tokPtr->type == TCL_TOKEN_SIMPLE_WORD) {
	    int literal = TclRegisterNewLiteral(envPtr,
		    tokPtr[1].start, tokPtr[1].size);

	    TclEmitPush(literal, envPtr);
	} else {
	    CompileTokens(envPtr, tokPtr, interp);
	}
	tokPtr = TokenAfter(tokPtr);
    }

    /*
     * Push the name of the command we're actually dispatching to as part of
     * the implementation.
     */

    objPtr = Tcl_NewObj();
    Tcl_GetCommandFullName(interp, (Tcl_Command) cmdPtr, objPtr);
    bytes = Tcl_GetStringFromObj(objPtr, &length);
    cmdLit = TclRegisterNewCmdLiteral(envPtr, bytes, length);
    TclSetCmdNameObj(interp, envPtr->literalArrayPtr[cmdLit].objPtr, cmdPtr);
    TclEmitPush(cmdLit, envPtr);
    TclDecrRefCount(objPtr);

    /*
     * Do the replacing dispatch.
     */

    TclEmitInstInt4(INST_INVOKE_REPLACE, parsePtr->numWords, envPtr);
    TclEmitInt1(numWords+1, envPtr);
    TclAdjustStackDepth(-1, envPtr);	/* Correction to stack depth calcs. */
}
 
/*
 * Helpers that do issuing of instructions for commands that "don't have
 * compilers" (well, they do; these). They all work by just generating base
 * code to invoke the command; they're intended for ensemble subcommands so
 * that the costs of INST_INVOKE_REPLACE can be avoided where we can work out
 * that they're not needed.
 *
 * Note that these are NOT suitable for commands where there's an argument
 * that is a script, as an [info level] or [info frame] in the inner context
 * can see the difference.
 */

static int
CompileBasicNArgCommand(
    Tcl_Interp *interp,		/* Used for error reporting. */
    Tcl_Parse *parsePtr,	/* Points to a parse structure for the command
				 * created by Tcl_ParseCommand. */
    Command *cmdPtr,		/* Points to defintion of command being
				 * compiled. */
    CompileEnv *envPtr)		/* Holds resulting instructions. */
{
    Tcl_Token *tokenPtr;
    Tcl_Obj *objPtr;
    char *bytes;
    int length, i, literal;

    /*
     * Push the name of the command we're actually dispatching to as part of
     * the implementation.
     */

    objPtr = Tcl_NewObj();
    Tcl_GetCommandFullName(interp, (Tcl_Command) cmdPtr, objPtr);
    bytes = Tcl_GetStringFromObj(objPtr, &length);
    literal = TclRegisterNewCmdLiteral(envPtr, bytes, length);
    TclSetCmdNameObj(interp, envPtr->literalArrayPtr[literal].objPtr, cmdPtr);
    TclEmitPush(literal, envPtr);
    TclDecrRefCount(objPtr);

    /*
     * Push the words of the command.
     */

    tokenPtr = TokenAfter(parsePtr->tokenPtr);
    for (i=1 ; i<parsePtr->numWords ; i++) {
	if (tokenPtr->type == TCL_TOKEN_SIMPLE_WORD) {
	    PushLiteral(envPtr, tokenPtr[1].start, tokenPtr[1].size);
	} else {
	    CompileTokens(envPtr, tokenPtr, interp);
	}
	tokenPtr = TokenAfter(tokenPtr);
    }

    /*
     * Do the standard dispatch.
     */

    if (i <= 255) {
	TclEmitInstInt1(INST_INVOKE_STK1, i, envPtr);
    } else {
	TclEmitInstInt4(INST_INVOKE_STK4, i, envPtr);
    }
    return TCL_OK;
}

int
TclCompileBasic0ArgCmd(
    Tcl_Interp *interp,		/* Used for error reporting. */
    Tcl_Parse *parsePtr,	/* Points to a parse structure for the command
				 * created by Tcl_ParseCommand. */
    Command *cmdPtr,		/* Points to defintion of command being
				 * compiled. */
    CompileEnv *envPtr)		/* Holds resulting instructions. */
{
    /*
     * Verify that the number of arguments is correct; that's the only case
     * that we know will avoid the call to Tcl_WrongNumArgs() at invoke time,
     * which is the only code that sees the shenanigans of ensemble dispatch.
     */

    if (parsePtr->numWords != 1) {
	return TCL_ERROR;
    }

    return CompileBasicNArgCommand(interp, parsePtr, cmdPtr, envPtr);
}

int
TclCompileBasic1ArgCmd(
    Tcl_Interp *interp,		/* Used for error reporting. */
    Tcl_Parse *parsePtr,	/* Points to a parse structure for the command
				 * created by Tcl_ParseCommand. */
    Command *cmdPtr,		/* Points to defintion of command being
				 * compiled. */
    CompileEnv *envPtr)		/* Holds resulting instructions. */
{
    /*
     * Verify that the number of arguments is correct; that's the only case
     * that we know will avoid the call to Tcl_WrongNumArgs() at invoke time,
     * which is the only code that sees the shenanigans of ensemble dispatch.
     */

    if (parsePtr->numWords != 2) {
	return TCL_ERROR;
    }

    return CompileBasicNArgCommand(interp, parsePtr, cmdPtr, envPtr);
}

int
TclCompileBasic2ArgCmd(
    Tcl_Interp *interp,		/* Used for error reporting. */
    Tcl_Parse *parsePtr,	/* Points to a parse structure for the command
				 * created by Tcl_ParseCommand. */
    Command *cmdPtr,		/* Points to defintion of command being
				 * compiled. */
    CompileEnv *envPtr)		/* Holds resulting instructions. */
{
    /*
     * Verify that the number of arguments is correct; that's the only case
     * that we know will avoid the call to Tcl_WrongNumArgs() at invoke time,
     * which is the only code that sees the shenanigans of ensemble dispatch.
     */

    if (parsePtr->numWords != 3) {
	return TCL_ERROR;
    }

    return CompileBasicNArgCommand(interp, parsePtr, cmdPtr, envPtr);
}

int
TclCompileBasic3ArgCmd(
    Tcl_Interp *interp,		/* Used for error reporting. */
    Tcl_Parse *parsePtr,	/* Points to a parse structure for the command
				 * created by Tcl_ParseCommand. */
    Command *cmdPtr,		/* Points to defintion of command being
				 * compiled. */
    CompileEnv *envPtr)		/* Holds resulting instructions. */
{
    /*
     * Verify that the number of arguments is correct; that's the only case
     * that we know will avoid the call to Tcl_WrongNumArgs() at invoke time,
     * which is the only code that sees the shenanigans of ensemble dispatch.
     */

    if (parsePtr->numWords != 4) {
	return TCL_ERROR;
    }

    return CompileBasicNArgCommand(interp, parsePtr, cmdPtr, envPtr);
}

int
TclCompileBasic0Or1ArgCmd(
    Tcl_Interp *interp,		/* Used for error reporting. */
    Tcl_Parse *parsePtr,	/* Points to a parse structure for the command
				 * created by Tcl_ParseCommand. */
    Command *cmdPtr,		/* Points to defintion of command being
				 * compiled. */
    CompileEnv *envPtr)		/* Holds resulting instructions. */
{
    /*
     * Verify that the number of arguments is correct; that's the only case
     * that we know will avoid the call to Tcl_WrongNumArgs() at invoke time,
     * which is the only code that sees the shenanigans of ensemble dispatch.
     */

    if (parsePtr->numWords != 1 && parsePtr->numWords != 2) {
	return TCL_ERROR;
    }

    return CompileBasicNArgCommand(interp, parsePtr, cmdPtr, envPtr);
}

int
TclCompileBasic1Or2ArgCmd(
    Tcl_Interp *interp,		/* Used for error reporting. */
    Tcl_Parse *parsePtr,	/* Points to a parse structure for the command
				 * created by Tcl_ParseCommand. */
    Command *cmdPtr,		/* Points to defintion of command being
				 * compiled. */
    CompileEnv *envPtr)		/* Holds resulting instructions. */
{
    /*
     * Verify that the number of arguments is correct; that's the only case
     * that we know will avoid the call to Tcl_WrongNumArgs() at invoke time,
     * which is the only code that sees the shenanigans of ensemble dispatch.
     */

    if (parsePtr->numWords != 2 && parsePtr->numWords != 3) {
	return TCL_ERROR;
    }

    return CompileBasicNArgCommand(interp, parsePtr, cmdPtr, envPtr);
}

int
TclCompileBasic2Or3ArgCmd(
    Tcl_Interp *interp,		/* Used for error reporting. */
    Tcl_Parse *parsePtr,	/* Points to a parse structure for the command
				 * created by Tcl_ParseCommand. */
    Command *cmdPtr,		/* Points to defintion of command being
				 * compiled. */
    CompileEnv *envPtr)		/* Holds resulting instructions. */
{
    /*
     * Verify that the number of arguments is correct; that's the only case
     * that we know will avoid the call to Tcl_WrongNumArgs() at invoke time,
     * which is the only code that sees the shenanigans of ensemble dispatch.
     */

    if (parsePtr->numWords != 3 && parsePtr->numWords != 4) {
	return TCL_ERROR;
    }

    return CompileBasicNArgCommand(interp, parsePtr, cmdPtr, envPtr);
}

int
TclCompileBasic0To2ArgCmd(
    Tcl_Interp *interp,		/* Used for error reporting. */
    Tcl_Parse *parsePtr,	/* Points to a parse structure for the command
				 * created by Tcl_ParseCommand. */
    Command *cmdPtr,		/* Points to defintion of command being
				 * compiled. */
    CompileEnv *envPtr)		/* Holds resulting instructions. */
{
    /*
     * Verify that the number of arguments is correct; that's the only case
     * that we know will avoid the call to Tcl_WrongNumArgs() at invoke time,
     * which is the only code that sees the shenanigans of ensemble dispatch.
     */

    if (parsePtr->numWords < 1 || parsePtr->numWords > 3) {
	return TCL_ERROR;
    }

    return CompileBasicNArgCommand(interp, parsePtr, cmdPtr, envPtr);
}

int
TclCompileBasic1To3ArgCmd(
    Tcl_Interp *interp,		/* Used for error reporting. */
    Tcl_Parse *parsePtr,	/* Points to a parse structure for the command
				 * created by Tcl_ParseCommand. */
    Command *cmdPtr,		/* Points to defintion of command being
				 * compiled. */
    CompileEnv *envPtr)		/* Holds resulting instructions. */
{
    /*
     * Verify that the number of arguments is correct; that's the only case
     * that we know will avoid the call to Tcl_WrongNumArgs() at invoke time,
     * which is the only code that sees the shenanigans of ensemble dispatch.
     */

    if (parsePtr->numWords < 2 || parsePtr->numWords > 4) {
	return TCL_ERROR;
    }

    return CompileBasicNArgCommand(interp, parsePtr, cmdPtr, envPtr);
}

int
TclCompileBasicMin0ArgCmd(
    Tcl_Interp *interp,		/* Used for error reporting. */
    Tcl_Parse *parsePtr,	/* Points to a parse structure for the command
				 * created by Tcl_ParseCommand. */
    Command *cmdPtr,		/* Points to defintion of command being
				 * compiled. */
    CompileEnv *envPtr)		/* Holds resulting instructions. */
{
    /*
     * Verify that the number of arguments is correct; that's the only case
     * that we know will avoid the call to Tcl_WrongNumArgs() at invoke time,
     * which is the only code that sees the shenanigans of ensemble dispatch.
     */

    if (parsePtr->numWords < 1) {
	return TCL_ERROR;
    }

    return CompileBasicNArgCommand(interp, parsePtr, cmdPtr, envPtr);
}

int
TclCompileBasicMin1ArgCmd(
    Tcl_Interp *interp,		/* Used for error reporting. */
    Tcl_Parse *parsePtr,	/* Points to a parse structure for the command
				 * created by Tcl_ParseCommand. */
    Command *cmdPtr,		/* Points to defintion of command being
				 * compiled. */
    CompileEnv *envPtr)		/* Holds resulting instructions. */
{
    /*
     * Verify that the number of arguments is correct; that's the only case
     * that we know will avoid the call to Tcl_WrongNumArgs() at invoke time,
     * which is the only code that sees the shenanigans of ensemble dispatch.
     */

    if (parsePtr->numWords < 2) {
	return TCL_ERROR;
    }

    return CompileBasicNArgCommand(interp, parsePtr, cmdPtr, envPtr);
}

int
TclCompileBasicMin2ArgCmd(
    Tcl_Interp *interp,		/* Used for error reporting. */
    Tcl_Parse *parsePtr,	/* Points to a parse structure for the command
				 * created by Tcl_ParseCommand. */
    Command *cmdPtr,		/* Points to defintion of command being
				 * compiled. */
    CompileEnv *envPtr)		/* Holds resulting instructions. */
{
    /*
     * Verify that the number of arguments is correct; that's the only case
     * that we know will avoid the call to Tcl_WrongNumArgs() at invoke time,
     * which is the only code that sees the shenanigans of ensemble dispatch.
     */

    if (parsePtr->numWords < 3) {
	return TCL_ERROR;
    }

    return CompileBasicNArgCommand(interp, parsePtr, cmdPtr, envPtr);
}
 
/*
 * Local Variables:
 * mode: c
 * c-basic-offset: 4
 * fill-column: 78
 * End:
 */






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 * Copyright (c) 2005-2013 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"


/*
 * Declarations for functions local to this file:
 */

static inline Tcl_Obj *	NewNsObj(Tcl_Namespace *namespacePtr);
static inline int	EnsembleUnknownCallback(Tcl_Interp *interp,
................................................................................
static void		DeleteEnsembleConfig(ClientData clientData);
static void		MakeCachedEnsembleCommand(Tcl_Obj *objPtr,
			    EnsembleConfig *ensemblePtr,
			    const char *subcmdName, Tcl_Obj *prefixObjPtr);
static void		FreeEnsembleCmdRep(Tcl_Obj *objPtr);
static void		DupEnsembleCmdRep(Tcl_Obj *objPtr, Tcl_Obj *copyPtr);
static void		StringOfEnsembleCmdRep(Tcl_Obj *objPtr);










/*
 * The lists of subcommands and options for the [namespace ensemble] command.
 */

static const char *const ensembleSubcommands[] = {
    "configure", "create", "exists", NULL
................................................................................
    EnsembleCmdRep *ensembleCmd = objPtr->internalRep.otherValuePtr;
    int length = strlen(ensembleCmd->fullSubcmdName);

    objPtr->length = length;
    objPtr->bytes = ckalloc(length + 1);
    memcpy(objPtr->bytes, ensembleCmd->fullSubcmdName, (unsigned) length+1);
}
 
/*































































































































































































































































































































































































































































































































































































































































































































































































































 * Local Variables:
 * mode: c
 * c-basic-offset: 4
 * fill-column: 78
 * End:
 */

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 * Copyright (c) 2007 Daniel A. Steffen <[email protected]>
 * Copyright (c) 2006-2008 by Joe Mistachkin.  All rights reserved.
 *
 * 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 "tommath.h"
#include <math.h>

/*
 * Hack to determine whether we may expect IEEE floating point. The hack is
 * formally incorrect in that non-IEEE platforms might have the same precision






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 * Copyright (c) 2007 Daniel A. Steffen <[email protected]>
 * Copyright (c) 2006-2008 by Joe Mistachkin.  All rights reserved.
 *
 * See the file "license.terms" for information on usage and redistribution of
 * this file, and for a DISCLAIMER OF ALL WARRANTIES.
 */

#include "tclEngineInt.h"

#include "tclOOInt.h"
#include "tommath.h"
#include <math.h>

/*
 * Hack to determine whether we may expect IEEE floating point. The hack is
 * formally incorrect in that non-IEEE platforms might have the same precision

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#declare 140 {
#    int TclLooksLikeInt(const char *bytes, int length)
#}
# This is used by TclX, but should otherwise be considered private
declare 141 {
    CONST84_RETURN char *TclpGetCwd(Tcl_Interp *interp, Tcl_DString *cwdPtr)
}
declare 142 {
    int TclSetByteCodeFromAny(Tcl_Interp *interp, Tcl_Obj *objPtr,
	    CompileHookProc *hookProc, ClientData clientData)
}

declare 143 {
    int TclAddLiteralObj(struct CompileEnv *envPtr, Tcl_Obj *objPtr,
	    LiteralEntry **litPtrPtr)
}
declare 144 {
    void TclHideLiteral(Tcl_Interp *interp, struct CompileEnv *envPtr,
	    int index)






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#declare 140 {
#    int TclLooksLikeInt(const char *bytes, int length)
#}
# This is used by TclX, but should otherwise be considered private
declare 141 {
    CONST84_RETURN char *TclpGetCwd(Tcl_Interp *interp, Tcl_DString *cwdPtr)
}
#declare 142 {
#    int TclSetByteCodeFromAny(Tcl_Interp *interp, Tcl_Obj *objPtr,
#	    CompileHookProc *hookProc, ClientData clientData)

#}
declare 143 {
    int TclAddLiteralObj(struct CompileEnv *envPtr, Tcl_Obj *objPtr,
	    LiteralEntry **litPtrPtr)
}
declare 144 {
    void TclHideLiteral(Tcl_Interp *interp, struct CompileEnv *envPtr,
	    int index)

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 * See the file "license.terms" for information on usage and redistribution of
 * this file, and for a DISCLAIMER OF ALL WARRANTIES.
 */

#ifndef _TCLINT
#define _TCLINT



/*
 * Some numerics configuration options.
 */

#undef NO_WIDE_TYPE
#undef ACCEPT_NAN

................................................................................
/*
 * This is a convenience macro used to initialize a thread local storage ptr.
 */

#define TCL_TSD_INIT(keyPtr) \
  (ThreadSpecificData *)Tcl_GetThreadData((keyPtr), sizeof(ThreadSpecificData))

/*
 *----------------------------------------------------------------
 * Data structures related to bytecode compilation and execution. These are
 * used primarily in tclCompile.c, tclExecute.c, and tclBasic.c.
 *----------------------------------------------------------------
 */

/*
 * Forward declaration to prevent errors when the forward references to
 * Tcl_Parse and CompileEnv are encountered in the procedure type CompileProc
 * declared below.
 */

struct CompileEnv;

/*
 * The type of procedures called by the Tcl bytecode compiler to compile
 * commands. Pointers to these procedures are kept in the Command structure
 * describing each command. The integer value returned by a CompileProc must
 * be one of the following:
 *
 * TCL_OK		Compilation completed normally.
 * TCL_ERROR 		Compilation could not be completed. This can be just a
 * 			judgment by the CompileProc that the command is too
 * 			complex to compile effectively, or it can indicate
 * 			that in the current state of the interp, the command
 * 			would raise an error. The bytecode compiler will not
 * 			do any error reporting at compiler time. Error
 * 			reporting is deferred until the actual runtime,
 * 			because by then changes in the interp state may allow
 * 			the command to be successfully evaluated.
 * TCL_OUT_LINE_COMPILE	A source-compatible alias for TCL_ERROR, kept for the
 * 			sake of old code only.
 */

#define TCL_OUT_LINE_COMPILE	TCL_ERROR

typedef int (CompileProc)(Tcl_Interp *interp, Tcl_Parse *parsePtr,
	struct Command *cmdPtr, struct CompileEnv *compEnvPtr);

/*
 * The type of procedure called from the compilation hook point in
 * SetByteCodeFromAny.
 */

typedef int (CompileHookProc)(Tcl_Interp *interp,
	struct CompileEnv *compEnvPtr, ClientData clientData);

/*
 * The data structure for a (linked list of) execution stacks.
 */

typedef struct ExecStack {
    struct ExecStack *prevPtr;
    struct ExecStack *nextPtr;
    Tcl_Obj **markerPtr;
    Tcl_Obj **endPtr;
    Tcl_Obj **tosPtr;
    Tcl_Obj *stackWords[1];
} ExecStack;

/*
 * The data structure defining the execution environment for ByteCode's.
 * There is one ExecEnv structure per Tcl interpreter. It holds the evaluation
 * stack that holds command operands and results. The stack grows towards
 * increasing addresses. The member stackPtr points to the stackItems of the
 * currently active execution stack.
 */

typedef struct CorContext {
    struct CallFrame *framePtr;
    struct CallFrame *varFramePtr;
} CorContext;

typedef struct CoroutineData {
    struct Command *cmdPtr;	/* The command handle for the coroutine. */
................................................................................
				 * numLevels of the create/resume command is
				 * stored here; for suspended coroutines it
				 * holds the nesting numLevels at yield. */
    int nargs;                  /* Number of args required for resuming this
				 * coroutine; -2 means "0 or 1" (default), -1
				 * means "any" */
} CoroutineData;












typedef struct ExecEnv {
    ExecStack *execStackPtr;	/* Points to the first item in the evaluation
				 * stack on the heap. */
    Tcl_Obj *constants[2];	/* Pointers to constant "0" and "1" objs. */
    struct Tcl_Interp *interp;
    struct NRE_callback *callbackPtr;
				/* Top callback in NRE's stack. */
    struct NRE_stack *NRStack;
    struct CoroutineData *corPtr;
    int rewind;



} ExecEnv;

#define COR_IS_SUSPENDED(corPtr) \
    ((corPtr)->stackLevel == NULL)

/*
 * The definitions for the LiteralTable and LiteralEntry structures. Each
 * interpreter contains a LiteralTable. It is used to reduce the storage
 * needed for all the Tcl objects that hold the literals of scripts compiled
 * by the interpreter. A literal's object is shared by all the ByteCodes that
 * refer to the literal. Each distinct literal has one LiteralEntry entry in
 * the LiteralTable. A literal table is a specialized hash table that is
................................................................................
    int numEntries;		/* Total number of entries present in
				 * table. */
    int rebuildSize;		/* Enlarge table when numEntries gets to be
				 * this large. */
    int mask;			/* Mask value used in hashing function. */
} LiteralTable;

/*
 * The following structure defines for each Tcl interpreter various
 * statistics-related information about the bytecode compiler and
 * interpreter's operation in that interpreter.
 */

#ifdef TCL_COMPILE_STATS
typedef struct ByteCodeStats {
    long numExecutions;		/* Number of ByteCodes executed. */
    long numCompilations;	/* Number of ByteCodes created. */
    long numByteCodesFreed;	/* Number of ByteCodes destroyed. */
    long instructionCount[256];	/* Number of times each instruction was
				 * executed. */

    double totalSrcBytes;	/* Total source bytes ever compiled. */
    double totalByteCodeBytes;	/* Total bytes for all ByteCodes. */
    double currentSrcBytes;	/* Src bytes for all current ByteCodes. */
    double currentByteCodeBytes;/* Code bytes in all current ByteCodes. */

    long srcCount[32];		/* Source size distribution: # of srcs of
				 * size [2**(n-1)..2**n), n in [0..32). */
    long byteCodeCount[32];	/* ByteCode size distribution. */
    long lifetimeCount[32];	/* ByteCode lifetime distribution (ms). */

    double currentInstBytes;	/* Instruction bytes-current ByteCodes. */
    double currentLitBytes;	/* Current literal bytes. */
    double currentExceptBytes;	/* Current exception table bytes. */
    double currentAuxBytes;	/* Current auxiliary information bytes. */
    double currentCmdMapBytes;	/* Current src<->code map bytes. */

    long numLiteralsCreated;	/* Total literal objects ever compiled. */
    double totalLitStringBytes;	/* Total string bytes in all literals. */
    double currentLitStringBytes;
				/* String bytes in current literals. */
    long literalCount[32];	/* Distribution of literal string sizes. */
} ByteCodeStats;
#endif /* TCL_COMPILE_STATS */

/*
 * Structure used in implementation of those core ensembles which are
 * partially compiled. Used as an array of these, with a terminating field
 * whose 'name' is NULL.
 */




typedef struct {
    const char *name;		/* The name of the subcommand. */
    Tcl_ObjCmdProc *proc;	/* The implementation of the subcommand. */
    CompileProc *compileProc;	/* The compiler for the subcommand. */
    Tcl_ObjCmdProc *nreProc;	/* NRE implementation of this command. */
    ClientData clientData;	/* Any clientData to give the command. */
................................................................................
				/* Async handler token for Tcl_CancelEval. */
    Tcl_Obj *asyncCancelMsg;	/* Error message set by async cancel handler
				 * for the propagation of arbitrary Tcl
				 * errors. This information, if present
				 * (asyncCancelMsg not NULL), takes precedence
				 * over the default error messages returned by
				 * a script cancellation operation. */

#ifdef TCL_COMPILE_STATS
    /*
     * Statistical information about the bytecode compiler and interpreter's
     * operation. This should be the last field of Interp.
     */

    ByteCodeStats stats;	/* Holds compilation and execution statistics
................................................................................
MODULE_SCOPE void	TclInitThreadStorage(void);
MODULE_SCOPE void	TclFinalizeThreadDataThread(void);
MODULE_SCOPE void	TclFinalizeThreadStorage(void);
#ifdef TCL_WIDE_CLICKS
MODULE_SCOPE Tcl_WideInt TclpGetWideClicks(void);
MODULE_SCOPE double	TclpWideClicksToNanoseconds(Tcl_WideInt clicks);
#endif
MODULE_SCOPE Tcl_Obj *	TclDisassembleByteCodeObj(Tcl_Obj *objPtr);
MODULE_SCOPE int	TclZlibInit(Tcl_Interp *interp);
MODULE_SCOPE void *	TclpThreadCreateKey(void);
MODULE_SCOPE void	TclpThreadDeleteKey(void *keyPtr);
MODULE_SCOPE void	TclpThreadSetMasterTSD(void *tsdKeyPtr, void *ptr);
MODULE_SCOPE void *	TclpThreadGetMasterTSD(void *tsdKeyPtr);

/*
................................................................................
MODULE_SCOPE Tcl_Command TclInitDictCmd(Tcl_Interp *interp);
MODULE_SCOPE int	TclDictWithFinish(Tcl_Interp *interp, Var *varPtr,
			    Var *arrayPtr, Tcl_Obj *part1Ptr,
			    Tcl_Obj *part2Ptr, int index, int pathc,
			    Tcl_Obj *const pathv[], Tcl_Obj *keysPtr);
MODULE_SCOPE Tcl_Obj *	TclDictWithInit(Tcl_Interp *interp, Tcl_Obj *dictPtr,
			    int pathc, Tcl_Obj *const pathv[]);
MODULE_SCOPE int	Tcl_DisassembleObjCmd(ClientData clientData,
			    Tcl_Interp *interp, int objc,
			    Tcl_Obj *const objv[]);
			    
/* Assemble command function */			    
MODULE_SCOPE int	Tcl_AssembleObjCmd(ClientData clientData,
			    Tcl_Interp *interp, int objc,
			    Tcl_Obj *const objv[]);			    
MODULE_SCOPE int	TclNRAssembleObjCmd(ClientData clientData,
			    Tcl_Interp *interp, int objc,
................................................................................

#if !defined(USE_TCL_STUBS) && !defined(TCL_MEM_DEBUG)
#define Tcl_AttemptAlloc(size)        TclpAlloc(size)
#define Tcl_AttemptRealloc(ptr, size) TclpRealloc((ptr), (size))
#define Tcl_Free(ptr)                 TclpFree(ptr)
#endif














































#endif /* _TCLINT */
 
/*
 * Local Variables:
 * mode: c
 * c-basic-offset: 4
 * fill-column: 78
 * End:
 */






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 * See the file "license.terms" for information on usage and redistribution of
 * this file, and for a DISCLAIMER OF ALL WARRANTIES.
 */

#ifndef _TCLINT
#define _TCLINT

#include "tclInt.h"

/*
 * Some numerics configuration options.
 */

#undef NO_WIDE_TYPE
#undef ACCEPT_NAN

................................................................................
/*
 * This is a convenience macro used to initialize a thread local storage ptr.
 */

#define TCL_TSD_INIT(keyPtr) \
  (ThreadSpecificData *)Tcl_GetThreadData((keyPtr), sizeof(ThreadSpecificData))






































































typedef struct CorContext {
    struct CallFrame *framePtr;
    struct CallFrame *varFramePtr;
} CorContext;

typedef struct CoroutineData {
    struct Command *cmdPtr;	/* The command handle for the coroutine. */
................................................................................
				 * numLevels of the create/resume command is
				 * stored here; for suspended coroutines it
				 * holds the nesting numLevels at yield. */
    int nargs;                  /* Number of args required for resuming this
				 * coroutine; -2 means "0 or 1" (default), -1
				 * means "any" */
} CoroutineData;

#define COR_IS_SUSPENDED(corPtr) \
    ((corPtr)->stackLevel == NULL)

/*
 * The data structure defining the execution environment for ByteCode's.
 * There is one ExecEnv structure per Tcl interpreter. It holds the evaluation
 * stack that holds command operands and results. The stack grows towards
 * increasing addresses. The member stackPtr points to the stackItems of the
 * currently active execution stack.
 */

typedef struct ExecEnv {



    struct Tcl_Interp *interp;
    struct NRE_callback *callbackPtr;
				/* Top callback in NRE's stack. */

    struct CoroutineData *corPtr;
    int rewind;
    Tcl_Obj *constants[2];	/* Pointers to constant "0" and "1" objs. */
    struct ExecStack *execStackPtr;	/* Points to the first item in the evaluation
				 * stack on the heap. */
} ExecEnv;




/*
 * The definitions for the LiteralTable and LiteralEntry structures. Each
 * interpreter contains a LiteralTable. It is used to reduce the storage
 * needed for all the Tcl objects that hold the literals of scripts compiled
 * by the interpreter. A literal's object is shared by all the ByteCodes that
 * refer to the literal. Each distinct literal has one LiteralEntry entry in
 * the LiteralTable. A literal table is a specialized hash table that is
................................................................................
    int numEntries;		/* Total number of entries present in
				 * table. */
    int rebuildSize;		/* Enlarge table when numEntries gets to be
				 * this large. */
    int mask;			/* Mask value used in hashing function. */
} LiteralTable;

/*






































 * Structure used in implementation of those core ensembles which are
 * partially compiled. Used as an array of these, with a terminating field
 * whose 'name' is NULL.
 */
struct CompileEnv;
typedef int (CompileProc)(Tcl_Interp *interp, Tcl_Parse *parsePtr,
	struct Command *cmdPtr, struct CompileEnv *compEnvPtr);

typedef struct {
    const char *name;		/* The name of the subcommand. */
    Tcl_ObjCmdProc *proc;	/* The implementation of the subcommand. */
    CompileProc *compileProc;	/* The compiler for the subcommand. */
    Tcl_ObjCmdProc *nreProc;	/* NRE implementation of this command. */
    ClientData clientData;	/* Any clientData to give the command. */
................................................................................
				/* Async handler token for Tcl_CancelEval. */
    Tcl_Obj *asyncCancelMsg;	/* Error message set by async cancel handler
				 * for the propagation of arbitrary Tcl
				 * errors. This information, if present
				 * (asyncCancelMsg not NULL), takes precedence
				 * over the default error messages returned by
				 * a script cancellation operation. */

#ifdef TCL_COMPILE_STATS
    /*
     * Statistical information about the bytecode compiler and interpreter's
     * operation. This should be the last field of Interp.
     */

    ByteCodeStats stats;	/* Holds compilation and execution statistics
................................................................................
MODULE_SCOPE void	TclInitThreadStorage(void);
MODULE_SCOPE void	TclFinalizeThreadDataThread(void);
MODULE_SCOPE void	TclFinalizeThreadStorage(void);
#ifdef TCL_WIDE_CLICKS
MODULE_SCOPE Tcl_WideInt TclpGetWideClicks(void);
MODULE_SCOPE double	TclpWideClicksToNanoseconds(Tcl_WideInt clicks);
#endif

MODULE_SCOPE int	TclZlibInit(Tcl_Interp *interp);
MODULE_SCOPE void *	TclpThreadCreateKey(void);
MODULE_SCOPE void	TclpThreadDeleteKey(void *keyPtr);
MODULE_SCOPE void	TclpThreadSetMasterTSD(void *tsdKeyPtr, void *ptr);
MODULE_SCOPE void *	TclpThreadGetMasterTSD(void *tsdKeyPtr);

/*
................................................................................
MODULE_SCOPE Tcl_Command TclInitDictCmd(Tcl_Interp *interp);
MODULE_SCOPE int	TclDictWithFinish(Tcl_Interp *interp, Var *varPtr,
			    Var *arrayPtr, Tcl_Obj *part1Ptr,
			    Tcl_Obj *part2Ptr, int index, int pathc,
			    Tcl_Obj *const pathv[], Tcl_Obj *keysPtr);
MODULE_SCOPE Tcl_Obj *	TclDictWithInit(Tcl_Interp *interp, Tcl_Obj *dictPtr,
			    int pathc, Tcl_Obj *const pathv[]);



			    
/* Assemble command function */			    
MODULE_SCOPE int	Tcl_AssembleObjCmd(ClientData clientData,
			    Tcl_Interp *interp, int objc,
			    Tcl_Obj *const objv[]);			    
MODULE_SCOPE int	TclNRAssembleObjCmd(ClientData clientData,
			    Tcl_Interp *interp, int objc,
................................................................................

#if !defined(USE_TCL_STUBS) && !defined(TCL_MEM_DEBUG)
#define Tcl_AttemptAlloc(size)        TclpAlloc(size)
#define Tcl_AttemptRealloc(ptr, size) TclpRealloc((ptr), (size))
#define Tcl_Free(ptr)                 TclpFree(ptr)
#endif

/*
 * ADDENDA
 */

/*
 * The following structure defines for each Tcl interpreter various
 * statistics-related information about the bytecode compiler and
 * interpreter's operation in that interpreter.
 */

#ifdef TCL_COMPILE_STATS
typedef struct ByteCodeStats {
    long numExecutions;		/* Number of ByteCodes executed. */
    long numCompilations;	/* Number of ByteCodes created. */
    long numByteCodesFreed;	/* Number of ByteCodes destroyed. */
    long instructionCount[256];	/* Number of times each instruction was
				 * executed. */

    double totalSrcBytes;	/* Total source bytes ever compiled. */
    double totalByteCodeBytes;	/* Total bytes for all ByteCodes. */
    double currentSrcBytes;	/* Src bytes for all current ByteCodes. */
    double currentByteCodeBytes;/* Code bytes in all current ByteCodes. */

    long srcCount[32];		/* Source size distribution: # of srcs of
				 * size [2**(n-1)..2**n), n in [0..32). */
    long byteCodeCount[32];	/* ByteCode size distribution. */
    long lifetimeCount[32];	/* ByteCode lifetime distribution (ms). */

    double currentInstBytes;	/* Instruction bytes-current ByteCodes. */
    double currentLitBytes;	/* Current literal bytes. */
    double currentExceptBytes;	/* Current exception table bytes. */
    double currentAuxBytes;	/* Current auxiliary information bytes. */
    double currentCmdMapBytes;	/* Current src<->code map bytes. */

    long numLiteralsCreated;	/* Total literal objects ever compiled. */
    double totalLitStringBytes;	/* Total string bytes in all literals. */
    double currentLitStringBytes;
				/* String bytes in current literals. */
    long literalCount[32];	/* Distribution of literal string sizes. */
} ByteCodeStats;
#endif /* TCL_COMPILE_STATS */

MODULE_SCOPE Tcl_ObjCmdProc	TclNRInterpCoroutine;
MODULE_SCOPE void TclForceBodyNS(Tcl_Obj *bodyPtr, Namespace *nsPtr);

#endif /* _TCLINT */
 
/*
 * Local Variables:
 * mode: c
 * c-basic-offset: 4
 * fill-column: 78
 * End:
 */

Changes to generic/tclIntDecls.h.

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EXTERN CONST84_RETURN char * TclGetEnv(const char *name,
				Tcl_DString *valuePtr);
/* Slot 139 is reserved */
/* Slot 140 is reserved */
/* 141 */
EXTERN CONST84_RETURN char * TclpGetCwd(Tcl_Interp *interp,
				Tcl_DString *cwdPtr);
/* 142 */
EXTERN int		TclSetByteCodeFromAny(Tcl_Interp *interp,
				Tcl_Obj *objPtr, CompileHookProc *hookProc,
				ClientData clientData);
/* 143 */
EXTERN int		TclAddLiteralObj(struct CompileEnv *envPtr,
				Tcl_Obj *objPtr, LiteralEntry **litPtrPtr);
/* 144 */
EXTERN void		TclHideLiteral(Tcl_Interp *interp,
				struct CompileEnv *envPtr, int index);
/* 145 */
................................................................................
    void (*reserved135)(void);
    void (*reserved136)(void);
    void (*reserved137)(void);
    CONST84_RETURN char * (*tclGetEnv) (const char *name, Tcl_DString *valuePtr); /* 138 */
    void (*reserved139)(void);
    void (*reserved140)(void);
    CONST84_RETURN char * (*tclpGetCwd) (Tcl_Interp *interp, Tcl_DString *cwdPtr); /* 141 */
    int (*tclSetByteCodeFromAny) (Tcl_Interp *interp, Tcl_Obj *objPtr, CompileHookProc *hookProc, ClientData clientData); /* 142 */
    int (*tclAddLiteralObj) (struct CompileEnv *envPtr, Tcl_Obj *objPtr, LiteralEntry **litPtrPtr); /* 143 */
    void (*tclHideLiteral) (Tcl_Interp *interp, struct CompileEnv *envPtr, int index); /* 144 */
    const struct AuxDataType * (*tclGetAuxDataType) (const char *typeName); /* 145 */
    TclHandle (*tclHandleCreate) (void *ptr); /* 146 */
    void (*tclHandleFree) (TclHandle handle); /* 147 */
    TclHandle (*tclHandlePreserve) (TclHandle handle); /* 148 */
    void (*tclHandleRelease) (TclHandle handle); /* 149 */
................................................................................
/* Slot 137 is reserved */
#define TclGetEnv \
	(tclIntStubsPtr->tclGetEnv) /* 138 */
/* Slot 139 is reserved */
/* Slot 140 is reserved */
#define TclpGetCwd \
	(tclIntStubsPtr->tclpGetCwd) /* 141 */
#define TclSetByteCodeFromAny \
	(tclIntStubsPtr->tclSetByteCodeFromAny) /* 142 */
#define TclAddLiteralObj \
	(tclIntStubsPtr->tclAddLiteralObj) /* 143 */
#define TclHideLiteral \
	(tclIntStubsPtr->tclHideLiteral) /* 144 */
#define TclGetAuxDataType \
	(tclIntStubsPtr->tclGetAuxDataType) /* 145 */
#define TclHandleCreate \






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EXTERN CONST84_RETURN char * TclGetEnv(const char *name,
				Tcl_DString *valuePtr);
/* Slot 139 is reserved */
/* Slot 140 is reserved */
/* 141 */
EXTERN CONST84_RETURN char * TclpGetCwd(Tcl_Interp *interp,
				Tcl_DString *cwdPtr);
/* Slot 142 is reserved */



/* 143 */
EXTERN int		TclAddLiteralObj(struct CompileEnv *envPtr,
				Tcl_Obj *objPtr, LiteralEntry **litPtrPtr);
/* 144 */
EXTERN void		TclHideLiteral(Tcl_Interp *interp,
				struct CompileEnv *envPtr, int index);
/* 145 */
................................................................................
    void (*reserved135)(void);
    void (*reserved136)(void);
    void (*reserved137)(void);
    CONST84_RETURN char * (*tclGetEnv) (const char *name, Tcl_DString *valuePtr); /* 138 */
    void (*reserved139)(void);
    void (*reserved140)(void);
    CONST84_RETURN char * (*tclpGetCwd) (Tcl_Interp *interp, Tcl_DString *cwdPtr); /* 141 */
    void (*reserved142)(void);
    int (*tclAddLiteralObj) (struct CompileEnv *envPtr, Tcl_Obj *objPtr, LiteralEntry **litPtrPtr); /* 143 */
    void (*tclHideLiteral) (Tcl_Interp *interp, struct CompileEnv *envPtr, int index); /* 144 */
    const struct AuxDataType * (*tclGetAuxDataType) (const char *typeName); /* 145 */
    TclHandle (*tclHandleCreate) (void *ptr); /* 146 */
    void (*tclHandleFree) (TclHandle handle); /* 147 */
    TclHandle (*tclHandlePreserve) (TclHandle handle); /* 148 */
    void (*tclHandleRelease) (TclHandle handle); /* 149 */
................................................................................
/* Slot 137 is reserved */
#define TclGetEnv \
	(tclIntStubsPtr->tclGetEnv) /* 138 */
/* Slot 139 is reserved */
/* Slot 140 is reserved */
#define TclpGetCwd \
	(tclIntStubsPtr->tclpGetCwd) /* 141 */
/* Slot 142 is reserved */

#define TclAddLiteralObj \
	(tclIntStubsPtr->tclAddLiteralObj) /* 143 */
#define TclHideLiteral \
	(tclIntStubsPtr->tclHideLiteral) /* 144 */
#define TclGetAuxDataType \
	(tclIntStubsPtr->tclGetAuxDataType) /* 145 */
#define TclHandleCreate \

Changes to generic/tclLiteral.c.

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 * Copyright (c) 1997-1998 Sun Microsystems, Inc.
 * Copyright (c) 2004 by Kevin B. Kenny.  All rights reserved.
 *
 * 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"

/*
 * When there are this many entries per bucket, on average, rebuild a
 * literal's hash table to make it larger.
 */

#define REBUILD_MULTIPLIER	3






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 * Copyright (c) 1997-1998 Sun Microsystems, Inc.
 * Copyright (c) 2004 by Kevin B. Kenny.  All rights reserved.
 *
 * See the file "license.terms" for information on usage and redistribution of
 * this file, and for a DISCLAIMER OF ALL WARRANTIES.
 */

#include "tclEngineInt.h"


/*
 * When there are this many entries per bucket, on average, rebuild a
 * literal's hash table to make it larger.
 */

#define REBUILD_MULTIPLIER	3

Changes to generic/tclNRE.h.

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/* **********************************************
 * NRE internals   
 * **********************************************
 */

#define NRE_STACK_DEBUG         0
#define NRE_STACK_SIZE        100


/*
 * This is the main data struct for representing NR commands. It is designed
 * to fit in sizeof(Tcl_Obj) in order to exploit the fastest memory allocator
 * available.
 */

/*
 * Inline versions of Tcl_NRAddCallback and friends
 */

#define TOP_CB(iPtr) (((Interp *)(iPtr))->execEnvPtr->callbackPtr)

#define TclNRAddCallback(interp,postProcPtr,data0,data1,data2,data3)	\
................................................................................
	cbPtr->procPtr = (postProcPtr);					\
	cbPtr->data[0] = (ClientData)(data0);				\
	cbPtr->data[1] = (ClientData)(data1);				\
	cbPtr->data[2] = (ClientData)(data2);				\
	cbPtr->data[3] = (ClientData)(data3);				\
    } while (0)

#if NRE_STACK_DEBUG

typedef struct NRE_callback {
    Tcl_NRPostProc *procPtr;
    ClientData data[4];
    struct NRE_callback *nextPtr;
} NRE_callback;

#define POP_CB(interp, cbPtr)                      \
................................................................................
    } while (0)
    
#define FREE_CB(interp, ptr)			\
    ckfree((char *) (ptr))

#define NEXT_CB(ptr)  (ptr)->nextPtr

#else /* not debugging the NRE stack */

typedef struct NRE_callback {
    Tcl_NRPostProc *procPtr;
    ClientData data[4];
} NRE_callback;

typedef struct NRE_stack {
    struct NRE_callback items[NRE_STACK_SIZE];
    struct NRE_stack *next;
} NRE_stack;

#define POP_CB(interp, cbPtr)			\
    (cbPtr) = TOP_CB(interp)--

#define ALLOC_CB(interp, cbPtr)					\
    do {							\
	ExecEnv *eePtr = ((Interp *) interp)->execEnvPtr;	\
	NRE_stack *this = eePtr->NRStack;			\
								\
	if (eePtr->callbackPtr &&					\
		(eePtr->callbackPtr < &this->items[NRE_STACK_SIZE-1])) { \
	    (cbPtr) = ++eePtr->callbackPtr;				\
	} else {							\
	    (cbPtr) = TclNewCallback(interp);				\
	}								\
    } while (0)

#define FREE_CB(interp, cbPtr)

#define NEXT_CB(ptr) TclNextCallback(ptr)

MODULE_SCOPE NRE_callback *TclNewCallback(Tcl_Interp *interp);
MODULE_SCOPE NRE_callback *TclPopCallback(Tcl_Interp *interp);
MODULE_SCOPE NRE_callback *TclNextCallback(NRE_callback *ptr);

#endif




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/* **********************************************
 * NRE internals   
 * **********************************************
 */











/*
 * Inline versions of Tcl_NRAddCallback and friends
 */

#define TOP_CB(iPtr) (((Interp *)(iPtr))->execEnvPtr->callbackPtr)

#define TclNRAddCallback(interp,postProcPtr,data0,data1,data2,data3)	\
................................................................................
	cbPtr->procPtr = (postProcPtr);					\
	cbPtr->data[0] = (ClientData)(data0);				\
	cbPtr->data[1] = (ClientData)(data1);				\
	cbPtr->data[2] = (ClientData)(data2);				\
	cbPtr->data[3] = (ClientData)(data3);				\
    } while (0)



typedef struct NRE_callback {
    Tcl_NRPostProc *procPtr;
    ClientData data[4];
    struct NRE_callback *nextPtr;
} NRE_callback;

#define POP_CB(interp, cbPtr)                      \
................................................................................
    } while (0)
    
#define FREE_CB(interp, ptr)			\
    ckfree((char *) (ptr))

#define NEXT_CB(ptr)  (ptr)->nextPtr






































Changes to generic/tclNamesp.c.

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 *   [email protected]
 *
 * 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" /* for TclLogCommandInfo visibility */

/*
 * Thread-local storage used to avoid having a global lock on data that is not
 * limited to a single interpreter.
 */

typedef struct ThreadSpecificData {






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 *   [email protected]
 *
 * See the file "license.terms" for information on usage and redistribution of
 * this file, and for a DISCLAIMER OF ALL WARRANTIES.
 */

#include "tclInt.h"


/*
 * Thread-local storage used to avoid having a global lock on data that is not
 * limited to a single interpreter.
 */

typedef struct ThreadSpecificData {

Changes to generic/tclOOMethod.c.

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 */

#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "tclInt.h"
#include "tclOOInt.h"
#include "tclCompile.h"

/*
 * Structure used to contain all the information needed about a call frame
 * used in a procedure-like method.
 */

typedef struct {
................................................................................
    /*
     * [Bug 2037727] Always call TclProcCompileProc so that we check not only
     * that we have bytecode, but also that it remains valid. Note that we set
     * the namespace of the code here directly; this is a hack, but the
     * alternative is *so* slow...
     */

    if (pmPtr->procPtr->bodyPtr->typePtr == &tclByteCodeType) {
	ByteCode *codePtr =
		pmPtr->procPtr->bodyPtr->internalRep.otherValuePtr;

	codePtr->nsPtr = nsPtr;
    }
    result = TclProcCompileProc(interp, pmPtr->procPtr,
	    pmPtr->procPtr->bodyPtr, nsPtr, "body of method", namePtr);
    if (result != TCL_OK) {
	goto failureReturn;
    }

    /*






<







 







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|

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 */

#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "tclInt.h"
#include "tclOOInt.h"


/*
 * Structure used to contain all the information needed about a call frame
 * used in a procedure-like method.
 */

typedef struct {
................................................................................
    /*
     * [Bug 2037727] Always call TclProcCompileProc so that we check not only
     * that we have bytecode, but also that it remains valid. Note that we set
     * the namespace of the code here directly; this is a hack, but the
     * alternative is *so* slow...
     */



    TclForceBodyNS(pmPtr->procPtr->bodyPtr, nsPtr);



    result = TclProcCompileProc(interp, pmPtr->procPtr,
	    pmPtr->procPtr->bodyPtr, nsPtr, "body of method", namePtr);
    if (result != TCL_OK) {
	goto failureReturn;
    }

    /*

Changes to generic/tclProc.c.

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 * Copyright (c) 2007 Daniel A. Steffen <[email protected]>
 *
 * 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"

/*
 * Variables that are part of the [apply] command implementation and which
 * have to be passed to the other side of the NRE call.
 */

................................................................................

    overflow = (nameLen > limit);
    Tcl_AppendObjToErrorInfo(interp, Tcl_ObjPrintf(
	    "\n    (lambda term \"%.*s%s\" line %d)",
	    (overflow ? limit : nameLen), procName,
	    (overflow ? "..." : ""), Tcl_GetErrorLine(interp)));
}
 
/*
 *----------------------------------------------------------------------
 *
 * 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) {
	    if (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.otherValuePtr)->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
 * End:
 */






|







 









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 * Copyright (c) 2007 Daniel A. Steffen <[email protected]>
 *
 * 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 "tclEngine.h"
#include "tclOOInt.h"

/*
 * Variables that are part of the [apply] command implementation and which
 * have to be passed to the other side of the NRE call.
 */

................................................................................

    overflow = (nameLen > limit);
    Tcl_AppendObjToErrorInfo(interp, Tcl_ObjPrintf(
	    "\n    (lambda term \"%.*s%s\" line %d)",
	    (overflow ? limit : nameLen), procName,
	    (overflow ? "..." : ""), Tcl_GetErrorLine(interp)));
}
 
/*





































































































































































































































 * Local Variables:
 * mode: c
 * c-basic-offset: 4
 * fill-column: 78
 * End:
 */

Changes to generic/tclStubInit.c.

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    0, /* 135 */
    0, /* 136 */
    0, /* 137 */
    TclGetEnv, /* 138 */
    0, /* 139 */
    0, /* 140 */
    TclpGetCwd, /* 141 */
    TclSetByteCodeFromAny, /* 142 */
    TclAddLiteralObj, /* 143 */
    TclHideLiteral, /* 144 */
    TclGetAuxDataType, /* 145 */
    TclHandleCreate, /* 146 */
    TclHandleFree, /* 147 */
    TclHandlePreserve, /* 148 */
    TclHandleRelease, /* 149 */






|







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    0, /* 135 */
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    TclGetEnv, /* 138 */
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    TclpGetCwd, /* 141 */
    0, /* 142 */
    TclAddLiteralObj, /* 143 */
    TclHideLiteral, /* 144 */
    TclGetAuxDataType, /* 145 */
    TclHandleCreate, /* 146 */
    TclHandleFree, /* 147 */
    TclHandlePreserve, /* 148 */
    TclHandleRelease, /* 149 */

Changes to generic/tclTest.c.

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 */

#undef STATIC_BUILD
#ifndef USE_TCL_STUBS
#   define USE_TCL_STUBS
#endif
#include <sys/stat.h>
#include "tclInt.h"
#include "tclOO.h"
#include <math.h>
#include "tclNRE.h"

/*
 * Required for Testregexp*Cmd
 */






|







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 */

#undef STATIC_BUILD
#ifndef USE_TCL_STUBS
#   define USE_TCL_STUBS
#endif
#include <sys/stat.h>
#include "tclEngineInt.h"
#include "tclOO.h"
#include <math.h>
#include "tclNRE.h"

/*
 * Required for Testregexp*Cmd
 */

Changes to tests/compile.test.

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	    ]
	}
    }
} -cleanup {
    interp delete $i
} -result substituted

# This tests the supported parts of the unsupported [disassemble] command. It
# does not check the format of disassembled bytecode though; that's liable to
# change without warning.

test compile-18.1 {disassembler - basics} -returnCodes error -body {
    tcl::unsupported::disassemble
} -match glob -result {wrong # args: should be "*"}
test compile-18.2 {disassembler - basics} -returnCodes error -body {
    tcl::unsupported::disassemble ?
} -match glob -result {bad type "?": must be *}
test compile-18.3 {disassembler - basics} -returnCodes error -body {
    tcl::unsupported::disassemble lambda
} -match glob -result {wrong # args: should be "* lambda lambdaTerm"}
test compile-18.4 {disassembler - basics} -returnCodes error -body {
    tcl::unsupported::disassemble lambda \{
} -result "can't interpret \"\{\" as a lambda expression"
test compile-18.5 {disassembler - basics} -body {
    # Allow any string: the result format is not defined anywhere!
    tcl::unsupported::disassemble lambda {{} {}}
} -match glob -result *
test compile-18.6 {disassembler - basics} -returnCodes error -body {
    tcl::unsupported::disassemble proc
} -match glob -result {wrong # args: should be "* proc procName"}
test compile-18.7 {disassembler - basics} -returnCodes error -body {
    tcl::unsupported::disassemble proc nosuchproc
} -result {"nosuchproc" isn't a procedure}
test compile-18.8 {disassembler - basics} -setup {
    proc chewonthis {} {}
} -body {
    # Allow any string: the result format is not defined anywhere!
    tcl::unsupported::disassemble proc chewonthis
} -cleanup {
    rename chewonthis {}
} -match glob -result *
test compile-18.9 {disassembler - basics} -returnCodes error -body {
    tcl::unsupported::disassemble script
} -match glob -result {wrong # args: should be "* script script"}
test compile-18.10 {disassembler - basics} -body {
    # Allow any string: the result format is not defined anywhere!
    tcl::unsupported::disassemble script {}
} -match glob -result *
test compile-18.11 {disassembler - basics} -returnCodes error -body {
    tcl::unsupported::disassemble method
} -match glob -result {wrong # args: should be "* method className methodName"}
test compile-18.12 {disassembler - basics} -returnCodes error -body {
    tcl::unsupported::disassemble method nosuchclass foo
} -result {nosuchclass does not refer to an object}
test compile-18.13 {disassembler - basics} -returnCodes error -setup {
    oo::object create justanobject
} -body {
    tcl::unsupported::disassemble method justanobject foo
} -cleanup {
    justanobject destroy
} -result {"justanobject" is not a class}
test compile-18.14 {disassembler - basics} -returnCodes error -body {
    tcl::unsupported::disassemble method oo::object nosuchmethod
} -result {unknown method "nosuchmethod"}
test compile-18.15 {disassembler - basics} -setup {
    oo::class create foo {method bar {} {}}
} -body {
    # Allow any string: the result format is not defined anywhere!
    tcl::unsupported::disassemble method foo bar
} -cleanup {
    foo destroy
} -match glob -result *
test compile-18.16 {disassembler - basics} -returnCodes error -body {
    tcl::unsupported::disassemble objmethod
} -match glob -result {wrong # args: should be "* objmethod objectName methodName"}
test compile-18.17 {disassembler - basics} -returnCodes error -body {
    tcl::unsupported::disassemble objmethod nosuchobject foo
} -result {nosuchobject does not refer to an object}
test compile-18.18 {disassembler - basics} -returnCodes error -body {
    tcl::unsupported::disassemble objmethod oo::object nosuchmethod
} -result {unknown method "nosuchmethod"}
test compile-18.19 {disassembler - basics} -setup {
    oo::object create foo
    oo::objdefine foo {method bar {} {}}
} -body {
    # Allow any string: the result format is not defined anywhere!
    tcl::unsupported::disassemble objmethod foo bar
} -cleanup {
    foo destroy
} -match glob -result *
# TODO sometime - check that bytecode from tbcload is *not* disassembled.
 
# cleanup
catch {rename p ""}
catch {namespace delete test_ns_compile}
catch {unset x}
catch {unset y}
catch {unset a}






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	    ]
	}
    }
} -cleanup {
    interp delete $i
} -result substituted





















































































 
# cleanup
catch {rename p ""}
catch {namespace delete test_ns_compile}
catch {unset x}
catch {unset y}
catch {unset a}

Changes to unix/Makefile.in.

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XTTEST_OBJS = xtTestInit.o tclTest.o tclTestObj.o tclTestProcBodyObj.o \
	tclThreadTest.o tclUnixTest.o tclXtNotify.o tclXtTest.o

GENERIC_OBJS = regcomp.o regexec.o regfree.o regerror.o tclAlloc.o \
	tclAsync.o tclBasic.o tclBinary.o tclCkalloc.o tclClock.o \
	tclCmdAH.o tclCmdIL.o tclCmdMZ.o tclCompCmds.o tclCompCmdsSZ.o \
	tclCompExpr.o tclCompile.o tclConfig.o tclDate.o tclDictObj.o \
	tclEncoding.o tclEnsemble.o \
	tclEnv.o tclEvent.o tclExecute.o tclFCmd.o tclFileName.o tclGet.o \
	tclHash.o tclHistory.o tclIndexObj.o tclInterp.o tclIO.o tclIOCmd.o \
	tclIORChan.o tclIORTrans.o tclIOGT.o tclIOSock.o tclIOUtil.o \
	tclLink.o tclListObj.o \
	tclLiteral.o tclLoad.o tclMain.o tclNamesp.o tclNotify.o \
	tclObj.o tclPanic.o tclParse.o tclPathObj.o tclPipe.o \
	tclPkg.o tclPkgConfig.o tclPosixStr.o \
................................................................................
	$(GENERIC_DIR)/tclCompExpr.c \
	$(GENERIC_DIR)/tclCompile.c \
	$(GENERIC_DIR)/tclConfig.c \
	$(GENERIC_DIR)/tclDate.c \
	$(GENERIC_DIR)/tclDictObj.c \
	$(GENERIC_DIR)/tclEncoding.c \
	$(GENERIC_DIR)/tclEnsemble.c \

	$(GENERIC_DIR)/tclEnv.c \
	$(GENERIC_DIR)/tclEvent.c \
	$(GENERIC_DIR)/tclExecute.c \
	$(GENERIC_DIR)/tclFCmd.c \
	$(GENERIC_DIR)/tclFileName.c \
	$(GENERIC_DIR)/tclGet.c \
	$(GENERIC_DIR)/tclHash.c \
................................................................................
	fi;

# Object files used on all Unix systems:

REGHDRS=$(GENERIC_DIR)/regex.h $(GENERIC_DIR)/regguts.h \
		$(GENERIC_DIR)/regcustom.h
TCLREHDRS=$(GENERIC_DIR)/tclRegexp.h


COMPILEHDR=$(GENERIC_DIR)/tclCompile.h
FSHDR=$(GENERIC_DIR)/tclFileSystem.h
IOHDR=$(GENERIC_DIR)/tclIO.h
MATHHDRS=$(GENERIC_DIR)/tommath.h $(GENERIC_DIR)/tclTomMath.h
PARSEHDR=$(GENERIC_DIR)/tclParse.h
NREHDR=$(GENERIC_DIR)/tclNRE.h

regcomp.o: $(REGHDRS) $(GENERIC_DIR)/regcomp.c $(GENERIC_DIR)/regc_lex.c \
		$(GENERIC_DIR)/regc_color.c $(GENERIC_DIR)/regc_locale.c \
		$(GENERIC_DIR)/regc_nfa.c $(GENERIC_DIR)/regc_cvec.c
	$(CC) -c $(CC_SWITCHES) $(GENERIC_DIR)/regcomp.c

regexec.o: $(REGHDRS) $(GENERIC_DIR)/regexec.c $(GENERIC_DIR)/rege_dfa.c
................................................................................

tclAppInit.o: $(UNIX_DIR)/tclAppInit.c
	$(CC) -c $(APP_CC_SWITCHES) $(UNIX_DIR)/tclAppInit.c

tclAlloc.o: $(GENERIC_DIR)/tclAlloc.c
	$(CC) -c $(CC_SWITCHES) $(GENERIC_DIR)/tclAlloc.c

tclAssembly.o: $(GENERIC_DIR)/tclAssembly.c $(COMPILEHDR)
	$(CC) -c $(CC_SWITCHES) $(GENERIC_DIR)/tclAssembly.c

tclAsync.o: $(GENERIC_DIR)/tclAsync.c
	$(CC) -c $(CC_SWITCHES) $(GENERIC_DIR)/tclAsync.c

tclBasic.o: $(GENERIC_DIR)/tclBasic.c $(COMPILEHDR) $(MATHHDRS) $(NREHDR)
	$(CC) -c $(CC_SWITCHES) $(GENERIC_DIR)/tclBasic.c

tclBinary.o: $(GENERIC_DIR)/tclBinary.c
	$(CC) -c $(CC_SWITCHES) $(GENERIC_DIR)/tclBinary.c

tclCkalloc.o: $(GENERIC_DIR)/tclCkalloc.c
	$(CC) -c $(CC_SWITCHES) $(GENERIC_DIR)/tclCkalloc.c
................................................................................

tclCmdMZ.o: $(GENERIC_DIR)/tclCmdMZ.c $(TCLREHDRS)
	$(CC) -c $(CC_SWITCHES) $(GENERIC_DIR)/tclCmdMZ.c

tclDate.o: $(GENERIC_DIR)/tclDate.c
	$(CC) -c $(CC_SWITCHES) $(GENERIC_DIR)/tclDate.c

tclCompCmds.o: $(GENERIC_DIR)/tclCompCmds.c $(COMPILEHDR)
	$(CC) -c $(CC_SWITCHES) $(GENERIC_DIR)/tclCompCmds.c

tclCompCmdsSZ.o: $(GENERIC_DIR)/tclCompCmdsSZ.c $(COMPILEHDR)
	$(CC) -c $(CC_SWITCHES) $(GENERIC_DIR)/tclCompCmdsSZ.c

tclCompExpr.o: $(GENERIC_DIR)/tclCompExpr.c $(COMPILEHDR)
	$(CC) -c $(CC_SWITCHES) $(GENERIC_DIR)/tclCompExpr.c

tclCompile.o: $(GENERIC_DIR)/tclCompile.c $(COMPILEHDR)
	$(CC) -c $(CC_SWITCHES) $(GENERIC_DIR)/tclCompile.c

tclConfig.o: $(GENERIC_DIR)/tclConfig.c
	$(CC) -c $(CC_SWITCHES) $(GENERIC_DIR)/tclConfig.c

tclDictObj.o: $(GENERIC_DIR)/tclDictObj.c $(MATHHDRS)
	$(CC) -c $(CC_SWITCHES) $(GENERIC_DIR)/tclDictObj.c

tclEncoding.o: $(GENERIC_DIR)/tclEncoding.c
	$(CC) -c $(CC_SWITCHES) $(GENERIC_DIR)/tclEncoding.c

tclEnsemble.o: $(GENERIC_DIR)/tclEnsemble.c $(COMPILEHDR)
	$(CC) -c $(CC_SWITCHES) $(GENERIC_DIR)/tclEnsemble.c




tclEnv.o: $(GENERIC_DIR)/tclEnv.c
	$(CC) -c $(CC_SWITCHES) $(GENERIC_DIR)/tclEnv.c

tclEvent.o: $(GENERIC_DIR)/tclEvent.c
	$(CC) -c $(CC_SWITCHES) $(GENERIC_DIR)/tclEvent.c

tclExecute.o: $(GENERIC_DIR)/tclExecute.c $(COMPILEHDR) $(MATHHDRS)
	$(CC) -c $(CC_SWITCHES) $(GENERIC_DIR)/tclExecute.c

tclFCmd.o: $(GENERIC_DIR)/tclFCmd.c
	$(CC) -c $(CC_SWITCHES) $(GENERIC_DIR)/tclFCmd.c

tclFileName.o: $(GENERIC_DIR)/tclFileName.c $(FSHDR) $(TCLREHDRS)
	$(CC) -c $(CC_SWITCHES) $(GENERIC_DIR)/tclFileName.c
................................................................................

tclLink.o: $(GENERIC_DIR)/tclLink.c
	$(CC) -c $(CC_SWITCHES) $(GENERIC_DIR)/tclLink.c

tclListObj.o: $(GENERIC_DIR)/tclListObj.c
	$(CC) -c $(CC_SWITCHES) $(GENERIC_DIR)/tclListObj.c

tclLiteral.o: $(GENERIC_DIR)/tclLiteral.c $(COMPILEHDR)
	$(CC) -c $(CC_SWITCHES) $(GENERIC_DIR)/tclLiteral.c

tclObj.o: $(GENERIC_DIR)/tclObj.c $(COMPILEHDR) $(MATHHDRS)
	$(CC) -c $(CC_SWITCHES) $(GENERIC_DIR)/tclObj.c

tclLoad.o: $(GENERIC_DIR)/tclLoad.c
	$(CC) -c $(CC_SWITCHES) $(GENERIC_DIR)/tclLoad.c

tclLoadAix.o: $(UNIX_DIR)/tclLoadAix.c
	$(CC) -c $(CC_SWITCHES) $(UNIX_DIR)/tclLoadAix.c
................................................................................

tclLoadShl.o: $(UNIX_DIR)/tclLoadShl.c
	$(CC) -c $(CC_SWITCHES) $(UNIX_DIR)/tclLoadShl.c

tclMain.o: $(GENERIC_DIR)/tclMain.c
	$(CC) -c $(CC_SWITCHES) $(GENERIC_DIR)/tclMain.c

tclNamesp.o: $(GENERIC_DIR)/tclNamesp.c $(COMPILEHDR)
	$(CC) -c $(CC_SWITCHES) $(GENERIC_DIR)/tclNamesp.c

tclNotify.o: $(GENERIC_DIR)/tclNotify.c
	$(CC) -c $(CC_SWITCHES) $(GENERIC_DIR)/tclNotify.c

tclOO.o: $(GENERIC_DIR)/tclOO.c
	$(CC) -c $(CC_SWITCHES) $(GENERIC_DIR)/tclOO.c
................................................................................

tclPosixStr.o: $(GENERIC_DIR)/tclPosixStr.c
	$(CC) -c $(CC_SWITCHES) $(GENERIC_DIR)/tclPosixStr.c

tclPreserve.o: $(GENERIC_DIR)/tclPreserve.c
	$(CC) -c $(CC_SWITCHES) $(GENERIC_DIR)/tclPreserve.c

tclProc.o: $(GENERIC_DIR)/tclProc.c $(COMPILEHDR)
	$(CC) -c $(CC_SWITCHES) $(GENERIC_DIR)/tclProc.c

tclRegexp.o: $(GENERIC_DIR)/tclRegexp.c $(TCLREHDRS)
	$(CC) -c $(CC_SWITCHES) $(GENERIC_DIR)/tclRegexp.c

tclResolve.o: $(GENERIC_DIR)/tclResolve.c
	$(CC) -c $(CC_SWITCHES) $(GENERIC_DIR)/tclResolve.c
................................................................................

tclVar.o: $(GENERIC_DIR)/tclVar.c
	$(CC) -c $(CC_SWITCHES) $(GENERIC_DIR)/tclVar.c

tclZlib.o: $(GENERIC_DIR)/tclZlib.c
	$(CC) -c $(CC_SWITCHES) $(ZLIB_INCLUDE) $(GENERIC_DIR)/tclZlib.c

tclTest.o: $(GENERIC_DIR)/tclTest.c $(IOHDR) $(TCLREHDRS) $(NREHDR)
	$(CC) -c $(APP_CC_SWITCHES) $(GENERIC_DIR)/tclTest.c

tclTestObj.o: $(GENERIC_DIR)/tclTestObj.c $(MATHHDRS)
	$(CC) -c $(APP_CC_SWITCHES) $(GENERIC_DIR)/tclTestObj.c

tclTestProcBodyObj.o: $(GENERIC_DIR)/tclTestProcBodyObj.c
	$(CC) -c $(APP_CC_SWITCHES) $(GENERIC_DIR)/tclTestProcBodyObj.c






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XTTEST_OBJS = xtTestInit.o tclTest.o tclTestObj.o tclTestProcBodyObj.o \
	tclThreadTest.o tclUnixTest.o tclXtNotify.o tclXtTest.o

GENERIC_OBJS = regcomp.o regexec.o regfree.o regerror.o tclAlloc.o \
	tclAsync.o tclBasic.o tclBinary.o tclCkalloc.o tclClock.o \
	tclCmdAH.o tclCmdIL.o tclCmdMZ.o tclCompCmds.o tclCompCmdsSZ.o \
	tclCompExpr.o tclCompile.o tclConfig.o tclDate.o tclDictObj.o \
	tclEncoding.o tclEnsemble.o tclCompEnsemble.o\
	tclEnv.o tclEvent.o tclExecute.o tclFCmd.o tclFileName.o tclGet.o \
	tclHash.o tclHistory.o tclIndexObj.o tclInterp.o tclIO.o tclIOCmd.o \
	tclIORChan.o tclIORTrans.o tclIOGT.o tclIOSock.o tclIOUtil.o \
	tclLink.o tclListObj.o \
	tclLiteral.o tclLoad.o tclMain.o tclNamesp.o tclNotify.o \
	tclObj.o tclPanic.o tclParse.o tclPathObj.o tclPipe.o \
	tclPkg.o tclPkgConfig.o tclPosixStr.o \
................................................................................
	$(GENERIC_DIR)/tclCompExpr.c \
	$(GENERIC_DIR)/tclCompile.c \
	$(GENERIC_DIR)/tclConfig.c \
	$(GENERIC_DIR)/tclDate.c \
	$(GENERIC_DIR)/tclDictObj.c \
	$(GENERIC_DIR)/tclEncoding.c \
	$(GENERIC_DIR)/tclEnsemble.c \
	$(GENERIC_DIR)/tclCompEnsemble.c \
	$(GENERIC_DIR)/tclEnv.c \
	$(GENERIC_DIR)/tclEvent.c \
	$(GENERIC_DIR)/tclExecute.c \
	$(GENERIC_DIR)/tclFCmd.c \
	$(GENERIC_DIR)/tclFileName.c \
	$(GENERIC_DIR)/tclGet.c \
	$(GENERIC_DIR)/tclHash.c \
................................................................................
	fi;

# Object files used on all Unix systems:

REGHDRS=$(GENERIC_DIR)/regex.h $(GENERIC_DIR)/regguts.h \
		$(GENERIC_DIR)/regcustom.h
TCLREHDRS=$(GENERIC_DIR)/tclRegexp.h
ENGINEHDR=$(GENERIC_DIR)/tclEngine.h
ENGINEINTHDR=$(ENGINEHDR) $(GENERIC_DIR)/tclEngineInt.h
NREHDR=$(GENERIC_DIR)/tclNRE.h
FSHDR=$(GENERIC_DIR)/tclFileSystem.h
IOHDR=$(GENERIC_DIR)/tclIO.h
MATHHDRS=$(GENERIC_DIR)/tommath.h $(GENERIC_DIR)/tclTomMath.h
PARSEHDR=$(GENERIC_DIR)/tclParse.h


regcomp.o: $(REGHDRS) $(GENERIC_DIR)/regcomp.c $(GENERIC_DIR)/regc_lex.c \
		$(GENERIC_DIR)/regc_color.c $(GENERIC_DIR)/regc_locale.c \
		$(GENERIC_DIR)/regc_nfa.c $(GENERIC_DIR)/regc_cvec.c
	$(CC) -c $(CC_SWITCHES) $(GENERIC_DIR)/regcomp.c

regexec.o: $(REGHDRS) $(GENERIC_DIR)/regexec.c $(GENERIC_DIR)/rege_dfa.c
................................................................................

tclAppInit.o: $(UNIX_DIR)/tclAppInit.c
	$(CC) -c $(APP_CC_SWITCHES) $(UNIX_DIR)/tclAppInit.c

tclAlloc.o: $(GENERIC_DIR)/tclAlloc.c
	$(CC) -c $(CC_SWITCHES) $(GENERIC_DIR)/tclAlloc.c

tclAssembly.o: $(GENERIC_DIR)/tclAssembly.c $(ENGINEINTHDR)
	$(CC) -c $(CC_SWITCHES) $(GENERIC_DIR)/tclAssembly.c

tclAsync.o: $(GENERIC_DIR)/tclAsync.c
	$(CC) -c $(CC_SWITCHES) $(GENERIC_DIR)/tclAsync.c

tclBasic.o: $(GENERIC_DIR)/tclBasic.c $(ENGINEHDR) $(MATHHDRS) $(NREHDR)
	$(CC) -c $(CC_SWITCHES) $(GENERIC_DIR)/tclBasic.c

tclBinary.o: $(GENERIC_DIR)/tclBinary.c
	$(CC) -c $(CC_SWITCHES) $(GENERIC_DIR)/tclBinary.c

tclCkalloc.o: $(GENERIC_DIR)/tclCkalloc.c
	$(CC) -c $(CC_SWITCHES) $(GENERIC_DIR)/tclCkalloc.c
................................................................................

tclCmdMZ.o: $(GENERIC_DIR)/tclCmdMZ.c $(TCLREHDRS)
	$(CC) -c $(CC_SWITCHES) $(GENERIC_DIR)/tclCmdMZ.c

tclDate.o: $(GENERIC_DIR)/tclDate.c
	$(CC) -c $(CC_SWITCHES) $(GENERIC_DIR)/tclDate.c

tclCompCmds.o: $(GENERIC_DIR)/tclCompCmds.c $(ENGINEINTHDR)
	$(CC) -c $(CC_SWITCHES) $(GENERIC_DIR)/tclCompCmds.c

tclCompCmdsSZ.o: $(GENERIC_DIR)/tclCompCmdsSZ.c $(ENGINEINTHDR)
	$(CC) -c $(CC_SWITCHES) $(GENERIC_DIR)/tclCompCmdsSZ.c

tclCompExpr.o: $(GENERIC_DIR)/tclCompExpr.c $(ENGINEINTHDR)
	$(CC) -c $(CC_SWITCHES) $(GENERIC_DIR)/tclCompExpr.c

tclCompile.o: $(GENERIC_DIR)/tclCompile.c $(ENGINEINTHDR)
	$(CC) -c $(CC_SWITCHES) $(GENERIC_DIR)/tclCompile.c

tclConfig.o: $(GENERIC_DIR)/tclConfig.c
	$(CC) -c $(CC_SWITCHES) $(GENERIC_DIR)/tclConfig.c

tclDictObj.o: $(GENERIC_DIR)/tclDictObj.c $(MATHHDRS)
	$(CC) -c $(CC_SWITCHES) $(GENERIC_DIR)/tclDictObj.c

tclEncoding.o: $(GENERIC_DIR)/tclEncoding.c
	$(CC) -c $(CC_SWITCHES) $(GENERIC_DIR)/tclEncoding.c

tclEnsemble.o: $(GENERIC_DIR)/tclEnsemble.c
	$(CC) -c $(CC_SWITCHES) $(GENERIC_DIR)/tclEnsemble.c

tclCompEnsemble.o: $(GENERIC_DIR)/tclCompEnsemble.c $(ENGINEINTHDR)
	$(CC) -c $(CC_SWITCHES) $(GENERIC_DIR)/tclCompEnsemble.c

tclEnv.o: $(GENERIC_DIR)/tclEnv.c
	$(CC) -c $(CC_SWITCHES) $(GENERIC_DIR)/tclEnv.c

tclEvent.o: $(GENERIC_DIR)/tclEvent.c
	$(CC) -c $(CC_SWITCHES) $(GENERIC_DIR)/tclEvent.c

tclExecute.o: $(GENERIC_DIR)/tclExecute.c $(ENGINEINTHDR) $(MATHHDRS)
	$(CC) -c $(CC_SWITCHES) $(GENERIC_DIR)/tclExecute.c

tclFCmd.o: $(GENERIC_DIR)/tclFCmd.c
	$(CC) -c $(CC_SWITCHES) $(GENERIC_DIR)/tclFCmd.c

tclFileName.o: $(GENERIC_DIR)/tclFileName.c $(FSHDR) $(TCLREHDRS)
	$(CC) -c $(CC_SWITCHES) $(GENERIC_DIR)/tclFileName.c
................................................................................

tclLink.o: $(GENERIC_DIR)/tclLink.c
	$(CC) -c $(CC_SWITCHES) $(GENERIC_DIR)/tclLink.c

tclListObj.o: $(GENERIC_DIR)/tclListObj.c
	$(CC) -c $(CC_SWITCHES) $(GENERIC_DIR)/tclListObj.c

tclLiteral.o: $(GENERIC_DIR)/tclLiteral.c $(ENGINEINTHDR)
	$(CC) -c $(CC_SWITCHES) $(GENERIC_DIR)/tclLiteral.c

tclObj.o: $(GENERIC_DIR)/tclObj.c $(MATHHDRS)
	$(CC) -c $(CC_SWITCHES) $(GENERIC_DIR)/tclObj.c

tclLoad.o: $(GENERIC_DIR)/tclLoad.c
	$(CC) -c $(CC_SWITCHES) $(GENERIC_DIR)/tclLoad.c

tclLoadAix.o: $(UNIX_DIR)/tclLoadAix.c
	$(CC) -c $(CC_SWITCHES) $(UNIX_DIR)/tclLoadAix.c
................................................................................

tclLoadShl.o: $(UNIX_DIR)/tclLoadShl.c
	$(CC) -c $(CC_SWITCHES) $(UNIX_DIR)/tclLoadShl.c

tclMain.o: $(GENERIC_DIR)/tclMain.c
	$(CC) -c $(CC_SWITCHES) $(GENERIC_DIR)/tclMain.c

tclNamesp.o: $(GENERIC_DIR)/tclNamesp.c 
	$(CC) -c $(CC_SWITCHES) $(GENERIC_DIR)/tclNamesp.c

tclNotify.o: $(GENERIC_DIR)/tclNotify.c
	$(CC) -c $(CC_SWITCHES) $(GENERIC_DIR)/tclNotify.c

tclOO.o: $(GENERIC_DIR)/tclOO.c
	$(CC) -c $(CC_SWITCHES) $(GENERIC_DIR)/tclOO.c
................................................................................

tclPosixStr.o: $(GENERIC_DIR)/tclPosixStr.c
	$(CC) -c $(CC_SWITCHES) $(GENERIC_DIR)/tclPosixStr.c

tclPreserve.o: $(GENERIC_DIR)/tclPreserve.c
	$(CC) -c $(CC_SWITCHES) $(GENERIC_DIR)/tclPreserve.c

tclProc.o: $(GENERIC_DIR)/tclProc.c $(ENGINEHDR)
	$(CC) -c $(CC_SWITCHES) $(GENERIC_DIR)/tclProc.c

tclRegexp.o: $(GENERIC_DIR)/tclRegexp.c $(TCLREHDRS)
	$(CC) -c $(CC_SWITCHES) $(GENERIC_DIR)/tclRegexp.c

tclResolve.o: $(GENERIC_DIR)/tclResolve.c
	$(CC) -c $(CC_SWITCHES) $(GENERIC_DIR)/tclResolve.c
................................................................................

tclVar.o: $(GENERIC_DIR)/tclVar.c
	$(CC) -c $(CC_SWITCHES) $(GENERIC_DIR)/tclVar.c

tclZlib.o: $(GENERIC_DIR)/tclZlib.c
	$(CC) -c $(CC_SWITCHES) $(ZLIB_INCLUDE) $(GENERIC_DIR)/tclZlib.c

tclTest.o: $(GENERIC_DIR)/tclTest.c $(IOHDR) $(TCLREHDRS) $(NREHDR) $(ENGINEINTHDR)
	$(CC) -c $(APP_CC_SWITCHES) $(GENERIC_DIR)/tclTest.c

tclTestObj.o: $(GENERIC_DIR)/tclTestObj.c $(MATHHDRS)
	$(CC) -c $(APP_CC_SWITCHES) $(GENERIC_DIR)/tclTestObj.c

tclTestProcBodyObj.o: $(GENERIC_DIR)/tclTestProcBodyObj.c
	$(CC) -c $(APP_CC_SWITCHES) $(GENERIC_DIR)/tclTestProcBodyObj.c