/*
* tclTestObj.c --
*
* This file contains C command functions for the additional Tcl commands
* that are used for testing implementations of the Tcl object types.
* These commands are not normally included in Tcl applications; they're
* only used for testing.
*
* Copyright © 1995-1998 Sun Microsystems, Inc.
* Copyright © 1999 Scriptics Corporation.
* Copyright © 2005 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.
*/
#undef BUILD_tcl
#ifndef USE_TCL_STUBS
# define USE_TCL_STUBS
#endif
#define TCLBOOLWARNING(boolPtr) /* needed here because we compile with -Wc++-compat */
#include "tclInt.h"
#ifdef TCL_WITH_EXTERNAL_TOMMATH
# include "tommath.h"
#else
# include "tclTomMath.h"
#endif
#include "tclStringRep.h"
#include <assert.h>
/*
* Forward declarations for functions defined later in this file:
*/
static int CheckIfVarUnset(Tcl_Interp *interp, Tcl_Obj **varPtr, Tcl_Size varIndex);
static int GetVariableIndex(Tcl_Interp *interp,
Tcl_Obj *obj, Tcl_Size *indexPtr);
static void SetVarToObj(Tcl_Obj **varPtr, Tcl_Size varIndex, Tcl_Obj *objPtr);
static Tcl_ObjCmdProc TestbignumobjCmd;
static Tcl_ObjCmdProc TestbooleanobjCmd;
static Tcl_ObjCmdProc TestdoubleobjCmd;
static Tcl_ObjCmdProc TestindexobjCmd;
static Tcl_ObjCmdProc TestintobjCmd;
static Tcl_ObjCmdProc TestlistobjCmd;
static Tcl_ObjCmdProc TestobjCmd;
static Tcl_ObjCmdProc TeststringobjCmd;
static Tcl_ObjCmdProc TestbigdataCmd;
static Tcl_ObjCmdProc TestisemptyCmd;
#define VARPTR_KEY "TCLOBJTEST_VARPTR"
#define NUMBER_OF_OBJECT_VARS 20
static void
VarPtrDeleteProc(
void *clientData,
TCL_UNUSED(Tcl_Interp *))
{
int i;
Tcl_Obj **varPtr = (Tcl_Obj **) clientData;
for (i = 0; i < NUMBER_OF_OBJECT_VARS; i++) {
if (varPtr[i]) {
Tcl_DecrRefCount(varPtr[i]);
}
}
Tcl_Free(varPtr);
}
static Tcl_Obj **
GetVarPtr(
Tcl_Interp *interp)
{
Tcl_InterpDeleteProc *proc;
return (Tcl_Obj **) Tcl_GetAssocData(interp, VARPTR_KEY, &proc);
}
/*
*----------------------------------------------------------------------
*
* TclObjTest_Init --
*
* This function creates additional commands that are used to test the
* Tcl object support.
*
* Results:
* Returns a standard Tcl completion code, and leaves an error
* message in the interp's result if an error occurs.
*
* Side effects:
* Creates and registers several new testing commands.
*
*----------------------------------------------------------------------
*/
int
TclObjTest_Init(
Tcl_Interp *interp)
{
int i;
/*
* An array of Tcl_Obj pointers used in the commands that operate on or get
* the values of Tcl object-valued variables. varPtr[i] is the i-th variable's
* Tcl_Obj *.
*/
Tcl_Obj **varPtr;
#ifndef TCL_WITH_EXTERNAL_TOMMATH
if (Tcl_TomMath_InitStubs(interp, "9.0-") == NULL) {
return TCL_ERROR;
}
#endif
varPtr = (Tcl_Obj **)Tcl_Alloc(NUMBER_OF_OBJECT_VARS * sizeof(varPtr[0]));
if (!varPtr) {
return TCL_ERROR;
}
Tcl_SetAssocData(interp, VARPTR_KEY, VarPtrDeleteProc, varPtr);
for (i = 0; i < NUMBER_OF_OBJECT_VARS; i++) {
varPtr[i] = NULL;
}
Tcl_CreateObjCommand(interp, "testbignumobj", TestbignumobjCmd,
NULL, NULL);
Tcl_CreateObjCommand(interp, "testbooleanobj", TestbooleanobjCmd,
NULL, NULL);
Tcl_CreateObjCommand(interp, "testdoubleobj", TestdoubleobjCmd,
NULL, NULL);
Tcl_CreateObjCommand(interp, "testintobj", TestintobjCmd,
NULL, NULL);
Tcl_CreateObjCommand(interp, "testindexobj", TestindexobjCmd,
NULL, NULL);
Tcl_CreateObjCommand(interp, "testlistobj", TestlistobjCmd,
NULL, NULL);
Tcl_CreateObjCommand(interp, "testobj", TestobjCmd, NULL, NULL);
Tcl_CreateObjCommand(interp, "teststringobj", TeststringobjCmd,
NULL, NULL);
Tcl_CreateObjCommand(interp, "testisempty", TestisemptyCmd,
NULL, NULL);
if (sizeof(Tcl_Size) == sizeof(Tcl_WideInt)) {
Tcl_CreateObjCommand(interp, "testbigdata", TestbigdataCmd,
NULL, NULL);
}
return TCL_OK;
}
/*
*----------------------------------------------------------------------
*
* TestbignumobjCmd --
*
* This function implements the "testbignumobj" command. It is used
* to exercise the bignum Tcl object type implementation.
*
* Results:
* Returns a standard Tcl object result.
*
* Side effects:
* Creates and frees bignum objects; converts objects to have bignum
* type.
*
*----------------------------------------------------------------------
*/
static int
TestbignumobjCmd(
TCL_UNUSED(void *),
Tcl_Interp *interp, /* Tcl interpreter */
int objc, /* Argument count */
Tcl_Obj *const objv[]) /* Argument vector */
{
static const char *const subcmds[] = {
"set", "get", "mult10", "div10", "iseven", "radixsize", NULL
};
enum options {
BIGNUM_SET, BIGNUM_GET, BIGNUM_MULT10, BIGNUM_DIV10, BIGNUM_ISEVEN,
BIGNUM_RADIXSIZE
} idx;
int index;
Tcl_Size varIndex;
const char *string;
mp_int bignumValue;
Tcl_Obj **varPtr;
if (objc < 3) {
Tcl_WrongNumArgs(interp, 1, objv, "option ?arg ...?");
return TCL_ERROR;
}
if (Tcl_GetIndexFromObj(interp, objv[1], subcmds, "option", 0,
&idx) != TCL_OK) {
return TCL_ERROR;
}
if (GetVariableIndex(interp, objv[2], &varIndex) != TCL_OK) {
return TCL_ERROR;
}
varPtr = GetVarPtr(interp);
switch (idx) {
case BIGNUM_SET:
if (objc != 4) {
Tcl_WrongNumArgs(interp, 2, objv, "var value");
return TCL_ERROR;
}
string = Tcl_GetString(objv[3]);
if (mp_init(&bignumValue) != MP_OKAY) {
Tcl_SetObjResult(interp, Tcl_NewStringObj(
"error in mp_init", -1));
return TCL_ERROR;
}
if (mp_read_radix(&bignumValue, string, 10) != MP_OKAY) {
mp_clear(&bignumValue);
Tcl_SetObjResult(interp, Tcl_NewStringObj(
"error in mp_read_radix", -1));
return TCL_ERROR;
}
/*
* If the object currently bound to the variable with index varIndex
* has ref count 1 (i.e. the object is unshared) we can modify that
* object directly. Otherwise, if RC>1 (i.e. the object is shared),
* we must create a new object to modify/set and decrement the old
* formerly-shared object's ref count. This is "copy on write".
*/
if ((varPtr[varIndex] != NULL) && !Tcl_IsShared(varPtr[varIndex])) {
Tcl_SetBignumObj(varPtr[varIndex], &bignumValue);
} else {
SetVarToObj(varPtr, varIndex, Tcl_NewBignumObj(&bignumValue));
}
break;
case BIGNUM_GET:
if (objc != 3) {
Tcl_WrongNumArgs(interp, 2, objv, "varIndex");
return TCL_ERROR;
}
if (CheckIfVarUnset(interp, varPtr,varIndex)) {
return TCL_ERROR;
}
break;
case BIGNUM_MULT10:
if (objc != 3) {
Tcl_WrongNumArgs(interp, 2, objv, "varIndex");
return TCL_ERROR;
}
if (CheckIfVarUnset(interp, varPtr,varIndex)) {
return TCL_ERROR;
}
if (Tcl_GetBignumFromObj(interp, varPtr[varIndex],
&bignumValue) != TCL_OK) {
return TCL_ERROR;
}
if (mp_mul_d(&bignumValue, 10, &bignumValue) != MP_OKAY) {
mp_clear(&bignumValue);
Tcl_SetObjResult(interp, Tcl_NewStringObj(
"error in mp_mul_d", -1));
return TCL_ERROR;
}
if (!Tcl_IsShared(varPtr[varIndex])) {
Tcl_SetBignumObj(varPtr[varIndex], &bignumValue);
} else {
SetVarToObj(varPtr, varIndex, Tcl_NewBignumObj(&bignumValue));
}
break;
case BIGNUM_DIV10:
if (objc != 3) {
Tcl_WrongNumArgs(interp, 2, objv, "varIndex");
return TCL_ERROR;
}
if (CheckIfVarUnset(interp, varPtr,varIndex)) {
return TCL_ERROR;
}
if (Tcl_GetBignumFromObj(interp, varPtr[varIndex],
&bignumValue) != TCL_OK) {
return TCL_ERROR;
}
if (mp_div_d(&bignumValue, 10, &bignumValue, NULL) != MP_OKAY) {
mp_clear(&bignumValue);
Tcl_SetObjResult(interp, Tcl_NewStringObj(
"error in mp_div_d", -1));
return TCL_ERROR;
}
if (!Tcl_IsShared(varPtr[varIndex])) {
Tcl_SetBignumObj(varPtr[varIndex], &bignumValue);
} else {
SetVarToObj(varPtr, varIndex, Tcl_NewBignumObj(&bignumValue));
}
break;
case BIGNUM_ISEVEN:
if (objc != 3) {
Tcl_WrongNumArgs(interp, 2, objv, "varIndex");
return TCL_ERROR;
}
if (CheckIfVarUnset(interp, varPtr,varIndex)) {
return TCL_ERROR;
}
if (Tcl_GetBignumFromObj(interp, varPtr[varIndex],
&bignumValue) != TCL_OK) {
return TCL_ERROR;
}
if (mp_mod_2d(&bignumValue, 1, &bignumValue) != MP_OKAY) {
mp_clear(&bignumValue);
Tcl_SetObjResult(interp, Tcl_NewStringObj(
"error in mp_mod_2d", -1));
return TCL_ERROR;
}
if (!Tcl_IsShared(varPtr[varIndex])) {
Tcl_SetBooleanObj(varPtr[varIndex], mp_iszero(&bignumValue));
} else {
SetVarToObj(varPtr, varIndex, Tcl_NewBooleanObj(mp_iszero(&bignumValue)));
}
mp_clear(&bignumValue);
break;
case BIGNUM_RADIXSIZE:
if (objc != 3) {
Tcl_WrongNumArgs(interp, 2, objv, "varIndex");
return TCL_ERROR;
}
if (CheckIfVarUnset(interp, varPtr,varIndex)) {
return TCL_ERROR;
}
if (Tcl_GetBignumFromObj(interp, varPtr[varIndex],
&bignumValue) != TCL_OK) {
return TCL_ERROR;
}
if (mp_radix_size(&bignumValue, 10, &index) != MP_OKAY) {
return TCL_ERROR;
}
if (!Tcl_IsShared(varPtr[varIndex])) {
Tcl_SetWideIntObj(varPtr[varIndex], index);
} else {
SetVarToObj(varPtr, varIndex, Tcl_NewWideIntObj(index));
}
mp_clear(&bignumValue);
break;
}
Tcl_SetObjResult(interp, varPtr[varIndex]);
return TCL_OK;
}
/*
*----------------------------------------------------------------------
*
* TestbooleanobjCmd --
*
* This function implements the "testbooleanobj" command. It is used to
* test the boolean Tcl object type implementation.
*
* Results:
* A standard Tcl object result.
*
* Side effects:
* Creates and frees boolean objects, and also converts objects to
* have boolean type.
*
*----------------------------------------------------------------------
*/
static int
TestbooleanobjCmd(
TCL_UNUSED(void *),
Tcl_Interp *interp, /* Current interpreter. */
int objc, /* Number of arguments. */
Tcl_Obj *const objv[]) /* Argument objects. */
{
Tcl_Size varIndex;
int boolValue;
const char *subCmd;
Tcl_Obj **varPtr;
if (objc < 3) {
wrongNumArgs:
Tcl_WrongNumArgs(interp, 1, objv, "option arg ?arg ...?");
return TCL_ERROR;
}
if (GetVariableIndex(interp, objv[2], &varIndex) != TCL_OK) {
return TCL_ERROR;
}
varPtr = GetVarPtr(interp);
subCmd = Tcl_GetString(objv[1]);
if (strcmp(subCmd, "set") == 0) {
if (objc != 4) {
goto wrongNumArgs;
}
if (Tcl_GetBooleanFromObj(interp, objv[3], &boolValue) != TCL_OK) {
return TCL_ERROR;
}
/*
* If the object currently bound to the variable with index varIndex
* has ref count 1 (i.e. the object is unshared) we can modify that
* object directly. Otherwise, if RC>1 (i.e. the object is shared),
* we must create a new object to modify/set and decrement the old
* formerly-shared object's ref count. This is "copy on write".
*/
if ((varPtr[varIndex] != NULL) && !Tcl_IsShared(varPtr[varIndex])) {
Tcl_SetBooleanObj(varPtr[varIndex], boolValue);
} else {
SetVarToObj(varPtr, varIndex, Tcl_NewBooleanObj(boolValue));
}
Tcl_SetObjResult(interp, varPtr[varIndex]);
} else if (strcmp(subCmd, "get") == 0) {
if (objc != 3) {
goto wrongNumArgs;
}
if (CheckIfVarUnset(interp, varPtr,varIndex)) {
return TCL_ERROR;
}
Tcl_SetObjResult(interp, varPtr[varIndex]);
} else if (strcmp(subCmd, "not") == 0) {
if (objc != 3) {
goto wrongNumArgs;
}
if (CheckIfVarUnset(interp, varPtr,varIndex)) {
return TCL_ERROR;
}
if (Tcl_GetBooleanFromObj(interp, varPtr[varIndex],
&boolValue) != TCL_OK) {
return TCL_ERROR;
}
if (!Tcl_IsShared(varPtr[varIndex])) {
Tcl_SetBooleanObj(varPtr[varIndex], !boolValue);
} else {
SetVarToObj(varPtr, varIndex, Tcl_NewBooleanObj(!boolValue));
}
Tcl_SetObjResult(interp, varPtr[varIndex]);
} else {
Tcl_AppendStringsToObj(Tcl_GetObjResult(interp),
"bad option \"", Tcl_GetString(objv[1]),
"\": must be set, get, or not", (char *)NULL);
return TCL_ERROR;
}
return TCL_OK;
}
/*
*----------------------------------------------------------------------
*
* TestdoubleobjCmd --
*
* This function implements the "testdoubleobj" command. It is used to
* test the double-precision floating point Tcl object type
* implementation.
*
* Results:
* A standard Tcl object result.
*
* Side effects:
* Creates and frees double objects, and also converts objects to
* have double type.
*
*----------------------------------------------------------------------
*/
static int
TestdoubleobjCmd(
TCL_UNUSED(void *),
Tcl_Interp *interp, /* Current interpreter. */
int objc, /* Number of arguments. */
Tcl_Obj *const objv[]) /* Argument objects. */
{
Tcl_Size varIndex;
double doubleValue;
const char *subCmd;
Tcl_Obj **varPtr;
if (objc < 3) {
wrongNumArgs:
Tcl_WrongNumArgs(interp, 1, objv, "option arg ?arg ...?");
return TCL_ERROR;
}
varPtr = GetVarPtr(interp);
if (GetVariableIndex(interp, objv[2], &varIndex) != TCL_OK) {
return TCL_ERROR;
}
subCmd = Tcl_GetString(objv[1]);
if (strcmp(subCmd, "set") == 0) {
if (objc != 4) {
goto wrongNumArgs;
}
if (Tcl_GetDouble(interp, Tcl_GetString(objv[3]), &doubleValue) != TCL_OK) {
return TCL_ERROR;
}
/*
* If the object currently bound to the variable with index varIndex
* has ref count 1 (i.e. the object is unshared) we can modify that
* object directly. Otherwise, if RC>1 (i.e. the object is shared), we
* must create a new object to modify/set and decrement the old
* formerly-shared object's ref count. This is "copy on write".
*/
if ((varPtr[varIndex] != NULL) && !Tcl_IsShared(varPtr[varIndex])) {
Tcl_SetDoubleObj(varPtr[varIndex], doubleValue);
} else {
SetVarToObj(varPtr, varIndex, Tcl_NewDoubleObj(doubleValue));
}
Tcl_SetObjResult(interp, varPtr[varIndex]);
} else if (strcmp(subCmd, "get") == 0) {
if (objc != 3) {
goto wrongNumArgs;
}
if (CheckIfVarUnset(interp, varPtr,varIndex)) {
return TCL_ERROR;
}
Tcl_SetObjResult(interp, varPtr[varIndex]);
} else if (strcmp(subCmd, "mult10") == 0) {
if (objc != 3) {
goto wrongNumArgs;
}
if (CheckIfVarUnset(interp, varPtr,varIndex)) {
return TCL_ERROR;
}
if (Tcl_GetDoubleFromObj(interp, varPtr[varIndex],
&doubleValue) != TCL_OK) {
return TCL_ERROR;
}
if (!Tcl_IsShared(varPtr[varIndex])) {
Tcl_SetDoubleObj(varPtr[varIndex], doubleValue * 10.0);
} else {
SetVarToObj(varPtr, varIndex, Tcl_NewDoubleObj(doubleValue * 10.0));
}
Tcl_SetObjResult(interp, varPtr[varIndex]);
} else if (strcmp(subCmd, "div10") == 0) {
if (objc != 3) {
goto wrongNumArgs;
}
if (CheckIfVarUnset(interp, varPtr,varIndex)) {
return TCL_ERROR;
}
if (Tcl_GetDoubleFromObj(interp, varPtr[varIndex],
&doubleValue) != TCL_OK) {
return TCL_ERROR;
}
if (!Tcl_IsShared(varPtr[varIndex])) {
Tcl_SetDoubleObj(varPtr[varIndex], doubleValue / 10.0);
} else {
SetVarToObj(varPtr, varIndex, Tcl_NewDoubleObj(doubleValue / 10.0));
}
Tcl_SetObjResult(interp, varPtr[varIndex]);
} else {
Tcl_AppendStringsToObj(Tcl_GetObjResult(interp),
"bad option \"", Tcl_GetString(objv[1]),
"\": must be set, get, mult10, or div10", (char *)NULL);
return TCL_ERROR;
}
return TCL_OK;
}
/*
*----------------------------------------------------------------------
*
* TestindexobjCmd --
*
* This function implements the "testindexobj" command. It is used to
* test the index Tcl object type implementation.
*
* Results:
* A standard Tcl object result.
*
* Side effects:
* Creates and frees int objects, and also converts objects to
* have int type.
*
*----------------------------------------------------------------------
*/
static int
TestindexobjCmd(
TCL_UNUSED(void *),
Tcl_Interp *interp, /* Current interpreter. */
int objc, /* Number of arguments. */
Tcl_Obj *const objv[]) /* Argument objects. */
{
int allowAbbrev, index, setError, i, result;
Tcl_Size index2;
const char **argv;
static const char *const tablePtr[] = {"a", "b", "check", NULL};
/*
* Keep this structure declaration in sync with tclIndexObj.c
*/
struct IndexRep {
void *tablePtr; /* Pointer to the table of strings. */
Tcl_Size offset; /* Offset between table entries. */
Tcl_Size index; /* Selected index into table. */
} *indexRep;
if ((objc == 3) && (strcmp(Tcl_GetString(objv[1]),
"check") == 0)) {
/*
* This code checks to be sure that the results of Tcl_GetIndexFromObj
* are properly cached in the object and returned on subsequent
* lookups.
*/
if (Tcl_GetIntForIndex(interp, objv[2], TCL_INDEX_NONE, &index2) != TCL_OK) {
return TCL_ERROR;
}
Tcl_GetIndexFromObj(NULL, objv[1], tablePtr, "token", 0, &index);
indexRep = (struct IndexRep *)objv[1]->internalRep.twoPtrValue.ptr1;
indexRep->index = index2;
result = Tcl_GetIndexFromObj(NULL, objv[1],
tablePtr, "token", 0, &index);
if (result == TCL_OK) {
Tcl_SetWideIntObj(Tcl_GetObjResult(interp), index);
}
return result;
}
if (objc < 5) {
Tcl_AppendToObj(Tcl_GetObjResult(interp), "wrong # args", -1);
return TCL_ERROR;
}
if (Tcl_GetBooleanFromObj(interp, objv[1], &setError) != TCL_OK) {
return TCL_ERROR;
}
if (Tcl_GetBooleanFromObj(interp, objv[2], &allowAbbrev) != TCL_OK) {
return TCL_ERROR;
}
argv = (const char **)Tcl_Alloc((objc-3) * sizeof(char *));
for (i = 4; i < objc; i++) {
argv[i-4] = Tcl_GetString(objv[i]);
}
argv[objc-4] = NULL;
result = Tcl_GetIndexFromObj((setError? interp : NULL), objv[3],
argv, "token", TCL_INDEX_TEMP_TABLE|(allowAbbrev? 0 : TCL_EXACT),
&index);
Tcl_Free((void *)argv);
if (result == TCL_OK) {
Tcl_SetWideIntObj(Tcl_GetObjResult(interp), index);
}
return result;
}
/*
*----------------------------------------------------------------------
*
* TestintobjCmd --
*
* This function implements the "testintobj" command. It is used to
* test the int Tcl object type implementation.
*
* Results:
* A standard Tcl object result.
*
* Side effects:
* Creates and frees int objects, and also converts objects to
* have int type.
*
*----------------------------------------------------------------------
*/
static int
TestintobjCmd(
TCL_UNUSED(void *),
Tcl_Interp *interp, /* Current interpreter. */
int objc, /* Number of arguments. */
Tcl_Obj *const objv[]) /* Argument objects. */
{
Tcl_Size varIndex;
#if (INT_MAX != LONG_MAX) /* int is not the same size as long */
int i;
#endif
Tcl_WideInt wideValue;
const char *subCmd;
Tcl_Obj **varPtr;
if (objc < 3) {
wrongNumArgs:
Tcl_WrongNumArgs(interp, 1, objv, "option arg ?arg ...?");
return TCL_ERROR;
}
varPtr = GetVarPtr(interp);
if (GetVariableIndex(interp, objv[2], &varIndex) != TCL_OK) {
return TCL_ERROR;
}
subCmd = Tcl_GetString(objv[1]);
if (strcmp(subCmd, "set") == 0) {
if (objc != 4) {
goto wrongNumArgs;
}
if (Tcl_GetWideIntFromObj(interp, objv[3], &wideValue) != TCL_OK) {
return TCL_ERROR;
}
/*
* If the object currently bound to the variable with index varIndex
* has ref count 1 (i.e. the object is unshared) we can modify that
* object directly. Otherwise, if RC>1 (i.e. the object is shared), we
* must create a new object to modify/set and decrement the old
* formerly-shared object's ref count. This is "copy on write".
*/
if ((varPtr[varIndex] != NULL) && !Tcl_IsShared(varPtr[varIndex])) {
Tcl_SetWideIntObj(varPtr[varIndex], wideValue);
} else {
SetVarToObj(varPtr, varIndex, Tcl_NewWideIntObj(wideValue));
}
Tcl_SetObjResult(interp, varPtr[varIndex]);
} else if (strcmp(subCmd, "set2") == 0) { /* doesn't set result */
if (objc != 4) {
goto wrongNumArgs;
}
if (Tcl_GetWideIntFromObj(interp, objv[3], &wideValue) != TCL_OK) {
return TCL_ERROR;
}
if ((varPtr[varIndex] != NULL) && !Tcl_IsShared(varPtr[varIndex])) {
Tcl_SetWideIntObj(varPtr[varIndex], wideValue);
} else {
SetVarToObj(varPtr, varIndex, Tcl_NewWideIntObj(wideValue));
}
} else if (strcmp(subCmd, "setint") == 0) {
if (objc != 4) {
goto wrongNumArgs;
}
if (Tcl_GetWideIntFromObj(interp, objv[3], &wideValue) != TCL_OK) {
return TCL_ERROR;
}
if ((varPtr[varIndex] != NULL) && !Tcl_IsShared(varPtr[varIndex])) {
Tcl_SetWideIntObj(varPtr[varIndex], wideValue);
} else {
SetVarToObj(varPtr, varIndex, Tcl_NewWideIntObj(wideValue));
}
Tcl_SetObjResult(interp, varPtr[varIndex]);
} else if (strcmp(subCmd, "setmax") == 0) {
Tcl_WideInt maxWide = WIDE_MAX;
if (objc != 3) {
goto wrongNumArgs;
}
if ((varPtr[varIndex] != NULL) && !Tcl_IsShared(varPtr[varIndex])) {
Tcl_SetWideIntObj(varPtr[varIndex], maxWide);
} else {
SetVarToObj(varPtr, varIndex, Tcl_NewWideIntObj(maxWide));
}
} else if (strcmp(subCmd, "ismax") == 0) {
if (objc != 3) {
goto wrongNumArgs;
}
if (CheckIfVarUnset(interp, varPtr,varIndex)) {
return TCL_ERROR;
}
if (Tcl_GetWideIntFromObj(interp, varPtr[varIndex], &wideValue) != TCL_OK) {
return TCL_ERROR;
}
Tcl_AppendToObj(Tcl_GetObjResult(interp),
((wideValue == WIDE_MAX)? "1" : "0"), -1);
} else if (strcmp(subCmd, "get") == 0) {
if (objc != 3) {
goto wrongNumArgs;
}
if (CheckIfVarUnset(interp, varPtr,varIndex)) {
return TCL_ERROR;
}
Tcl_SetObjResult(interp, varPtr[varIndex]);
} else if (strcmp(subCmd, "get2") == 0) {
if (objc != 3) {
goto wrongNumArgs;
}
if (CheckIfVarUnset(interp, varPtr,varIndex)) {
return TCL_ERROR;
}
Tcl_AppendToObj(Tcl_GetObjResult(interp), Tcl_GetString(varPtr[varIndex]), -1);
} else if (strcmp(subCmd, "inttoobigtest") == 0) {
/*
* If long ints have more bits than ints on this platform, verify that
* Tcl_GetIntFromObj returns an error if the long int held in an
* integer object's internal representation is too large to fit in an
* int.
*/
if (objc != 3) {
goto wrongNumArgs;
}
#if (INT_MAX == LONG_MAX) /* int is same size as long int */
Tcl_AppendToObj(Tcl_GetObjResult(interp), "1", -1);
#else
if ((varPtr[varIndex] != NULL) && !Tcl_IsShared(varPtr[varIndex])) {
Tcl_SetWideIntObj(varPtr[varIndex], LONG_MAX);
} else {
SetVarToObj(varPtr, varIndex, Tcl_NewWideIntObj(LONG_MAX));
}
if (Tcl_GetIntFromObj(interp, varPtr[varIndex], &i) != TCL_OK) {
Tcl_ResetResult(interp);
Tcl_AppendToObj(Tcl_GetObjResult(interp), "1", -1);
return TCL_OK;
}
Tcl_AppendToObj(Tcl_GetObjResult(interp), "0", -1);
#endif
} else if (strcmp(subCmd, "mult10") == 0) {
if (objc != 3) {
goto wrongNumArgs;
}
if (CheckIfVarUnset(interp, varPtr,varIndex)) {
return TCL_ERROR;
}
if (Tcl_GetWideIntFromObj(interp, varPtr[varIndex],
&wideValue) != TCL_OK) {
return TCL_ERROR;
}
if (!Tcl_IsShared(varPtr[varIndex])) {
Tcl_SetWideIntObj(varPtr[varIndex], wideValue * 10);
} else {
SetVarToObj(varPtr, varIndex, Tcl_NewWideIntObj(wideValue * 10));
}
Tcl_SetObjResult(interp, varPtr[varIndex]);
} else if (strcmp(subCmd, "div10") == 0) {
if (objc != 3) {
goto wrongNumArgs;
}
if (CheckIfVarUnset(interp, varPtr,varIndex)) {
return TCL_ERROR;
}
if (Tcl_GetWideIntFromObj(interp, varPtr[varIndex],
&wideValue) != TCL_OK) {
return TCL_ERROR;
}
if (!Tcl_IsShared(varPtr[varIndex])) {
Tcl_SetWideIntObj(varPtr[varIndex], wideValue / 10);
} else {
SetVarToObj(varPtr, varIndex, Tcl_NewWideIntObj(wideValue / 10));
}
Tcl_SetObjResult(interp, varPtr[varIndex]);
} else {
Tcl_AppendStringsToObj(Tcl_GetObjResult(interp),
"bad option \"", Tcl_GetString(objv[1]),
"\": must be set, get, get2, mult10, or div10", (char *)NULL);
return TCL_ERROR;
}
return TCL_OK;
}
/*
*-----------------------------------------------------------------------------
*
* TestlistobjCmd --
*
* This function implements the 'testlistobj' command. It is used to
* test a few possible corner cases in list object manipulation from
* C code that cannot occur at the Tcl level.
*
* Following new commands are added for 9.0 as regression tests for
* memory leaks and use-after-free. Unlike 8.6, 9.0 has multiple internal
* representations for lists. It has to be ensured that corresponding
* implementations obey the invariants of the C list API. The script
* level tests do not suffice as Tcl list commands do not execute
* the same exact code path as the exported C API.
*
* Note these new commands are only useful when Tcl is compiled with
* TCL_MEM_DEBUG defined.
*
* indexmemcheck - loops calling Tcl_ListObjIndex on each element. This
* is to test that abstract lists returning elements do not depend
* on caller to free them. The test case should check allocated counts
* with the following sequence:
* set before <get memory counts>
* testobj set VARINDEX [list a b c] (or lseq etc.)
* testlistobj indexnoop VARINDEX
* testobj unset VARINDEX
* set after <get memory counts>
* after calling this command AND freeing the passed list. The targeted
* bug is if Tcl_LOI returns a ephemeral Tcl_Obj with no other reference
* resulting in a memory leak. Conversely, the command also checks
* that the Tcl_Obj returned by Tcl_LOI does not have a zero reference
* count since it is supposed to have at least one reference held
* by the list implementation. Returns a message in interp otherwise.
*
* getelementsmemcheck - as above but for Tcl_ListObjGetElements
*
* Results:
* A standard Tcl object result.
*
* Side effects:
* Creates, manipulates and frees list objects.
*
*-----------------------------------------------------------------------------
*/
static int
TestlistobjCmd(
TCL_UNUSED(void *),
Tcl_Interp *interp, /* Tcl interpreter */
int objc, /* Number of arguments */
Tcl_Obj *const objv[]) /* Argument objects */
{
/* Subcommands supported by this command */
static const char* const subcommands[] = {
"set",
"get",
"replace",
"indexmemcheck",
"getelementsmemcheck",
"index",
NULL
};
enum listobjCmdIndex {
LISTOBJ_SET,
LISTOBJ_GET,
LISTOBJ_REPLACE,
LISTOBJ_INDEXMEMCHECK,
LISTOBJ_GETELEMENTSMEMCHECK,
LISTOBJ_INDEX,
} cmdIndex;
Tcl_Size varIndex; /* Variable number converted to binary */
Tcl_Size first; /* First index in the list */
Tcl_Size count; /* Count of elements in a list */
Tcl_Obj **varPtr;
Tcl_Size i, len;
if (objc < 3) {
Tcl_WrongNumArgs(interp, 1, objv, "option arg ?arg...?");
return TCL_ERROR;
}
varPtr = GetVarPtr(interp);
if (GetVariableIndex(interp, objv[2], &varIndex) != TCL_OK) {
return TCL_ERROR;
}
if (Tcl_GetIndexFromObj(interp, objv[1], subcommands, "command",
0, &cmdIndex) != TCL_OK) {
return TCL_ERROR;
}
switch(cmdIndex) {
case LISTOBJ_SET:
if ((varPtr[varIndex] != NULL) && !Tcl_IsShared(varPtr[varIndex])) {
Tcl_SetListObj(varPtr[varIndex], objc-3, objv+3);
} else {
SetVarToObj(varPtr, varIndex, Tcl_NewListObj(objc-3, objv+3));
}
Tcl_SetObjResult(interp, varPtr[varIndex]);
break;
case LISTOBJ_GET:
if (objc != 3) {
Tcl_WrongNumArgs(interp, 2, objv, "varIndex");
return TCL_ERROR;
}
if (CheckIfVarUnset(interp, varPtr,varIndex)) {
return TCL_ERROR;
}
Tcl_SetObjResult(interp, varPtr[varIndex]);
break;
case LISTOBJ_REPLACE:
if (objc < 5) {
Tcl_WrongNumArgs(interp, 2, objv,
"varIndex start count ?element...?");
return TCL_ERROR;
}
if (Tcl_GetIntForIndex(interp, objv[3], TCL_INDEX_NONE, &first) != TCL_OK
|| Tcl_GetIntForIndex(interp, objv[4], TCL_INDEX_NONE, &count) != TCL_OK) {
return TCL_ERROR;
}
if (Tcl_IsShared(varPtr[varIndex])) {
SetVarToObj(varPtr, varIndex, Tcl_DuplicateObj(varPtr[varIndex]));
}
Tcl_ResetResult(interp);
return Tcl_ListObjReplace(interp, varPtr[varIndex], first, count,
objc-5, objv+5);
case LISTOBJ_INDEXMEMCHECK:
if (objc != 3) {
Tcl_WrongNumArgs(interp, 2, objv, "varIndex");
return TCL_ERROR;
}
if (CheckIfVarUnset(interp, varPtr, varIndex)) {
return TCL_ERROR;
}
if (Tcl_ListObjLength(interp, varPtr[varIndex], &len) != TCL_OK) {
return TCL_ERROR;
}
for (i = 0; i < len; ++i) {
Tcl_Obj *objP;
if (Tcl_ListObjIndex(interp, varPtr[varIndex], i, &objP)
!= TCL_OK) {
return TCL_ERROR;
}
if (objP->refCount < 0) {
Tcl_SetObjResult(interp, Tcl_NewStringObj(
"Tcl_ListObjIndex returned object with ref count < 0",
TCL_INDEX_NONE));
/* Keep looping since we are also looping for leaks */
}
Tcl_BounceRefCount(objP);
}
break;
case LISTOBJ_GETELEMENTSMEMCHECK:
if (objc != 3) {
Tcl_WrongNumArgs(interp, 2, objv, "varIndex");
return TCL_ERROR;
}
if (CheckIfVarUnset(interp, varPtr, varIndex)) {
return TCL_ERROR;
} else {
Tcl_Obj **elems;
if (Tcl_ListObjGetElements(interp, varPtr[varIndex], &len, &elems)
!= TCL_OK) {
return TCL_ERROR;
}
for (i = 0; i < len; ++i) {
if (elems[i]->refCount <= 0) {
Tcl_SetObjResult(interp, Tcl_NewStringObj(
"Tcl_ListObjGetElements element has ref count <= 0",
TCL_INDEX_NONE));
break;
}
}
}
break;
case LISTOBJ_INDEX:
/*
* Tcl_ListObjIndex semantics differ from lindex for out of bounds.
* Hence this explicit test.
*/
if (objc != 4) {
Tcl_WrongNumArgs(interp, 2, objv, "varIndex listIndex");
return TCL_ERROR;
}
if (Tcl_GetIntForIndex(interp, objv[3], TCL_INDEX_NONE, &first) != TCL_OK) {
return TCL_ERROR;
} else {
Tcl_Obj *objP;
if (Tcl_ListObjIndex(interp, varPtr[varIndex], first, &objP) != TCL_OK) {
return TCL_ERROR;
}
Tcl_SetObjResult(interp, objP ? objP : Tcl_NewStringObj("null", -1));
}
break;
}
return TCL_OK;
}
/*
*----------------------------------------------------------------------
*
* TestobjCmd --
*
* This function implements the "testobj" command. It is used to test
* the type-independent portions of the Tcl object type implementation.
*
* Results:
* A standard Tcl object result.
*
* Side effects:
* Creates and frees objects.
*
*----------------------------------------------------------------------
*/
static Tcl_Size V1TestListObjLength(TCL_UNUSED(Tcl_Obj *)) {
return 100;
}
static int V1TestListObjIndex(
TCL_UNUSED(Tcl_Interp *),
TCL_UNUSED(Tcl_Obj *),
TCL_UNUSED(Tcl_Size),
Tcl_Obj **objPtr)
{
*objPtr = Tcl_NewStringObj("This indexProc should never be accessed (bug: e58d7e19e9)", -1);
return TCL_OK;
}
static const Tcl_ObjType v1TestListType = {
"testlist", /* name */
NULL, /* freeIntRepProc */
NULL, /* dupIntRepProc */
NULL, /* updateStringProc */
NULL, /* setFromAnyProc */
offsetof(Tcl_ObjType, indexProc), /* This is a V1 objType, which doesn't have an indexProc */
V1TestListObjLength, /* always return 100, doesn't really matter */
V1TestListObjIndex, /* should never be accessed, because this objType = V1*/
NULL, NULL, NULL, NULL, NULL, NULL
};
static
void
HugeUpdateString(
TCL_UNUSED(Tcl_Obj *))
{
/* Always returns NULL, as an indication that
* room for its string representation cannot be allocated */
return;
}
static const Tcl_ObjType hugeType = {
"huge", /* name */
NULL, /* freeIntRepProc */
NULL, /* dupIntRepProc */
HugeUpdateString, /* updateStringProc */
NULL, /* setFromAnyProc */
TCL_OBJTYPE_V0
};
static int
TestobjCmd(
TCL_UNUSED(void *),
Tcl_Interp *interp, /* Current interpreter. */
int objc, /* Number of arguments. */
Tcl_Obj *const objv[]) /* Argument objects. */
{
Tcl_Size varIndex, destIndex;
int i;
const Tcl_ObjType *targetType;
Tcl_Obj **varPtr;
static const char *const subcommands[] = {
"freeallvars", "bug3598580", "buge58d7e19e9",
"types", "objtype", "newobj", "set",
"objrefcount",
"assign", "convert", "duplicate", "huge",
"invalidateStringRep", "refcount", "type",
NULL
};
enum testobjCmdIndex {
TESTOBJ_FREEALLVARS, TESTOBJ_BUG3598580, TESTOBJ_BUGE58D7E19E9,
TESTOBJ_TYPES, TESTOBJ_OBJTYPE, TESTOBJ_NEWOBJ, TESTOBJ_SET,
TESTOBJ_OBJREFCOUNT,
TESTOBJ_ASSIGN, TESTOBJ_CONVERT, TESTOBJ_DUPLICATE, TESTOBJ_HUGE,
TESTOBJ_INVALIDATESTRINGREP, TESTOBJ_REFCOUNT, TESTOBJ_TYPE,
} cmdIndex;
if (objc < 2) {
wrongNumArgs:
Tcl_WrongNumArgs(interp, 1, objv, "option arg ?arg ...?");
return TCL_ERROR;
}
varPtr = GetVarPtr(interp);
if (Tcl_GetIndexFromObj(
interp, objv[1], subcommands, "command", 0, &cmdIndex)
!= TCL_OK) {
return TCL_ERROR;
}
switch (cmdIndex) {
case TESTOBJ_FREEALLVARS:
if (objc != 2) {
goto wrongNumArgs;
}
for (i = 0; i < NUMBER_OF_OBJECT_VARS; i++) {
if (varPtr[i] != NULL) {
Tcl_DecrRefCount(varPtr[i]);
varPtr[i] = NULL;
}
}
return TCL_OK;
case TESTOBJ_BUG3598580:
if (objc != 2) {
goto wrongNumArgs;
} else {
Tcl_Obj *listObjPtr, *elemObjPtr;
elemObjPtr = Tcl_NewWideIntObj(123);
listObjPtr = Tcl_NewListObj(1, &elemObjPtr);
/* Replace the single list element through itself, nonsense but
* legal. */
Tcl_ListObjReplace(interp, listObjPtr, 0, 1, 1, &elemObjPtr);
Tcl_SetObjResult(interp, listObjPtr);
}
return TCL_OK;
case TESTOBJ_BUGE58D7E19E9:
if (objc != 3) {
goto wrongNumArgs;
} else {
Tcl_Obj *listObjPtr = Tcl_NewStringObj(Tcl_GetString(objv[2]), -1);
listObjPtr->typePtr = &v1TestListType;
Tcl_SetObjResult(interp, listObjPtr);
}
return TCL_OK;
case TESTOBJ_TYPES:
if (objc != 2) {
goto wrongNumArgs;
} else {
Tcl_Obj *typesObj = Tcl_NewListObj(0, NULL);
Tcl_AppendAllObjTypes(interp, typesObj);
Tcl_SetObjResult(interp, typesObj);
}
return TCL_OK;
case TESTOBJ_OBJTYPE:
/*
* Return an object containing the name of the argument's type of
* internal rep. If none exists, return "none".
*/
if (objc != 3) {
goto wrongNumArgs;
} else {
const char *typeName;
if (objv[2]->typePtr == NULL) {
Tcl_SetObjResult(interp, Tcl_NewStringObj("none", -1));
} else {
typeName = objv[2]->typePtr->name;
Tcl_SetObjResult(interp, Tcl_NewStringObj(typeName, -1));
}
}
return TCL_OK;
case TESTOBJ_NEWOBJ:
if (objc != 3) {
goto wrongNumArgs;
}
if (GetVariableIndex(interp, objv[2], &varIndex) != TCL_OK) {
return TCL_ERROR;
}
SetVarToObj(varPtr, varIndex, Tcl_NewObj());
Tcl_SetObjResult(interp, varPtr[varIndex]);
return TCL_OK;
case TESTOBJ_SET:
if (objc != 4) {
goto wrongNumArgs;
}
if (GetVariableIndex(interp, objv[2], &varIndex) != TCL_OK) {
return TCL_ERROR;
}
SetVarToObj(varPtr, varIndex, objv[3]);
return TCL_OK;
case TESTOBJ_OBJREFCOUNT:
if (objc != 3) {
goto wrongNumArgs;
} else {
Tcl_SetObjResult(interp, Tcl_NewWideIntObj(objv[2]->refCount));
}
return TCL_OK;
case TESTOBJ_HUGE: {
if (objc != 2) {
goto wrongNumArgs;
}
Tcl_Obj *hugeObjPtr = Tcl_NewObj();
hugeObjPtr->typePtr = &hugeType;
hugeObjPtr->length = INT_MAX - 1;
hugeObjPtr->bytes = NULL;
Tcl_SetObjResult(interp, hugeObjPtr);
}
return TCL_OK;
default:
break;
}
/* All further commands expect an occupied varindex argument */
if (objc < 3) {
goto wrongNumArgs;
}
if (GetVariableIndex(interp, objv[2], &varIndex) != TCL_OK) {
return TCL_ERROR;
}
if (CheckIfVarUnset(interp, varPtr, varIndex)) {
return TCL_ERROR;
}
switch (cmdIndex) {
case TESTOBJ_ASSIGN:
if (objc != 4) {
goto wrongNumArgs;
}
if (GetVariableIndex(interp, objv[3], &destIndex) != TCL_OK) {
return TCL_ERROR;
}
SetVarToObj(varPtr, destIndex, varPtr[varIndex]);
Tcl_SetObjResult(interp, varPtr[destIndex]);
break;
case TESTOBJ_CONVERT:
if (objc != 4) {
goto wrongNumArgs;
}
if ((targetType = Tcl_GetObjType(Tcl_GetString(objv[3]))) == NULL) {
Tcl_AppendStringsToObj(Tcl_GetObjResult(interp),
"no type ", Tcl_GetString(objv[3]), " found", (char *)NULL);
return TCL_ERROR;
}
if (Tcl_ConvertToType(interp, varPtr[varIndex], targetType)
!= TCL_OK) {
return TCL_ERROR;
}
Tcl_SetObjResult(interp, varPtr[varIndex]);
break;
case TESTOBJ_DUPLICATE:
if (objc != 4) {
goto wrongNumArgs;
}
if (GetVariableIndex(interp, objv[3], &destIndex) != TCL_OK) {
return TCL_ERROR;
}
SetVarToObj(varPtr, destIndex, Tcl_DuplicateObj(varPtr[varIndex]));
Tcl_SetObjResult(interp, varPtr[destIndex]);
break;
case TESTOBJ_INVALIDATESTRINGREP:
if (objc != 3) {
goto wrongNumArgs;
}
Tcl_InvalidateStringRep(varPtr[varIndex]);
Tcl_SetObjResult(interp, varPtr[varIndex]);
break;
case TESTOBJ_REFCOUNT:
if (objc != 3) {
goto wrongNumArgs;
}
Tcl_SetObjResult(interp, Tcl_NewWideIntObj(varPtr[varIndex]->refCount));
break;
case TESTOBJ_TYPE:
if (objc != 3) {
goto wrongNumArgs;
}
if (varPtr[varIndex]->typePtr == NULL) { /* a string! */
Tcl_AppendToObj(Tcl_GetObjResult(interp), "string", -1);
} else {
Tcl_AppendToObj(Tcl_GetObjResult(interp),
varPtr[varIndex]->typePtr->name, -1);
}
break;
default:
break;
}
return TCL_OK;
}
/*
*----------------------------------------------------------------------
*
* TeststringobjCmd --
*
* This function implements the "teststringobj" command. It is used to
* test the string Tcl object type implementation.
*
* Results:
* A standard Tcl object result.
*
* Side effects:
* Creates and frees string objects, and also converts objects to
* have string type.
*
*----------------------------------------------------------------------
*/
static int
TeststringobjCmd(
TCL_UNUSED(void *),
Tcl_Interp *interp, /* Current interpreter. */
int objc, /* Number of arguments. */
Tcl_Obj *const objv[]) /* Argument objects. */
{
Tcl_UniChar *unicode;
Tcl_Size size, varIndex;
int option, i;
Tcl_Size length;
#define MAX_STRINGS 11
const char *string, *strings[MAX_STRINGS+1];
String *strPtr;
Tcl_Obj **varPtr;
static const char *const options[] = {
"append", "appendstrings", "get", "get2", "length", "length2",
"set", "set2", "setlength", "maxchars", "range", "appendself",
"appendself2", "newunicode", NULL
};
if (objc < 3) {
wrongNumArgs:
Tcl_WrongNumArgs(interp, 1, objv, "option arg ?arg ...?");
return TCL_ERROR;
}
varPtr = GetVarPtr(interp);
if (GetVariableIndex(interp, objv[2], &varIndex) != TCL_OK) {
return TCL_ERROR;
}
if (Tcl_GetIndexFromObj(interp, objv[1], options, "option", 0, &option)
!= TCL_OK) {
return TCL_ERROR;
}
switch (option) {
case 0: /* append */
if (objc != 5) {
goto wrongNumArgs;
}
if (Tcl_GetIntForIndex(interp, objv[4], TCL_INDEX_NONE, &length) != TCL_OK) {
return TCL_ERROR;
}
if (varPtr[varIndex] == NULL) {
SetVarToObj(varPtr, varIndex, Tcl_NewObj());
}
/*
* If the object bound to variable "varIndex" is shared, we must
* "copy on write" and append to a copy of the object.
*/
if (Tcl_IsShared(varPtr[varIndex])) {
SetVarToObj(varPtr, varIndex, Tcl_DuplicateObj(varPtr[varIndex]));
}
Tcl_AppendToObj(varPtr[varIndex], Tcl_GetString(objv[3]), length);
Tcl_SetObjResult(interp, varPtr[varIndex]);
break;
case 1: /* appendstrings */
if (objc > (MAX_STRINGS+3)) {
goto wrongNumArgs;
}
if (varPtr[varIndex] == NULL) {
SetVarToObj(varPtr, varIndex, Tcl_NewObj());
}
/*
* If the object bound to variable "varIndex" is shared, we must
* "copy on write" and append to a copy of the object.
*/
if (Tcl_IsShared(varPtr[varIndex])) {
SetVarToObj(varPtr, varIndex, Tcl_DuplicateObj(varPtr[varIndex]));
}
for (i = 3; i < objc; i++) {
strings[i-3] = Tcl_GetString(objv[i]);
}
for ( ; i < 12 + 3; i++) {
strings[i - 3] = NULL;
}
Tcl_AppendStringsToObj(varPtr[varIndex], strings[0], strings[1],
strings[2], strings[3], strings[4], strings[5],
strings[6], strings[7], strings[8], strings[9],
strings[10], strings[11], (char *)NULL);
Tcl_SetObjResult(interp, varPtr[varIndex]);
break;
case 2: /* get */
if (objc != 3) {
goto wrongNumArgs;
}
if (CheckIfVarUnset(interp, varPtr,varIndex)) {
return TCL_ERROR;
}
Tcl_SetObjResult(interp, varPtr[varIndex]);
break;
case 3: /* get2 */
if (objc != 3) {
goto wrongNumArgs;
}
if (CheckIfVarUnset(interp, varPtr, varIndex)) {
return TCL_ERROR;
}
Tcl_AppendToObj(Tcl_GetObjResult(interp), Tcl_GetString(varPtr[varIndex]), -1);
break;
case 4: /* length */
if (objc != 3) {
goto wrongNumArgs;
}
Tcl_SetWideIntObj(Tcl_GetObjResult(interp), (varPtr[varIndex] != NULL)
? (Tcl_WideInt)varPtr[varIndex]->length : (Tcl_WideInt)-1);
break;
case 5: /* length2 */
if (objc != 3) {
goto wrongNumArgs;
}
if (varPtr[varIndex] != NULL) {
Tcl_ConvertToType(NULL, varPtr[varIndex],
Tcl_GetObjType("string"));
strPtr = (String *)varPtr[varIndex]->internalRep.twoPtrValue.ptr1;
length = strPtr->allocated;
} else {
length = TCL_INDEX_NONE;
}
Tcl_SetWideIntObj(Tcl_GetObjResult(interp), (Tcl_WideInt)((Tcl_WideUInt)(length + 1U)) - 1);
break;
case 6: /* set */
if (objc != 4) {
goto wrongNumArgs;
}
/*
* If the object currently bound to the variable with index
* varIndex has ref count 1 (i.e. the object is unshared) we can
* modify that object directly. Otherwise, if RC>1 (i.e. the
* object is shared), we must create a new object to modify/set
* and decrement the old formerly-shared object's ref count. This
* is "copy on write".
*/
string = Tcl_GetStringFromObj(objv[3], &size);
if ((varPtr[varIndex] != NULL)
&& !Tcl_IsShared(varPtr[varIndex])) {
Tcl_SetStringObj(varPtr[varIndex], string, size);
} else {
SetVarToObj(varPtr, varIndex, Tcl_NewStringObj(string, size));
}
Tcl_SetObjResult(interp, varPtr[varIndex]);
break;
case 7: /* set2 */
if (objc != 4) {
goto wrongNumArgs;
}
SetVarToObj(varPtr, varIndex, objv[3]);
break;
case 8: /* setlength */
if (objc != 4) {
goto wrongNumArgs;
}
if (Tcl_GetIntForIndex(interp, objv[3], TCL_INDEX_NONE, &length) != TCL_OK) {
return TCL_ERROR;
}
if (varPtr[varIndex] != NULL) {
Tcl_SetObjLength(varPtr[varIndex], length);
}
break;
case 9: /* maxchars */
if (objc != 3) {
goto wrongNumArgs;
}
if (varPtr[varIndex] != NULL) {
Tcl_ConvertToType(NULL, varPtr[varIndex],
Tcl_GetObjType("string"));
strPtr = (String *)varPtr[varIndex]->internalRep.twoPtrValue.ptr1;
length = strPtr->maxChars;
} else {
length = TCL_INDEX_NONE;
}
Tcl_SetWideIntObj(Tcl_GetObjResult(interp), length);
break;
case 10: { /* range */
Tcl_Size first, last;
if (objc != 5) {
goto wrongNumArgs;
}
if ((Tcl_GetIntForIndex(interp, objv[3], TCL_INDEX_NONE, &first) != TCL_OK)
|| (Tcl_GetIntForIndex(interp, objv[4], TCL_INDEX_NONE, &last) != TCL_OK)) {
return TCL_ERROR;
}
Tcl_SetObjResult(interp, Tcl_GetRange(varPtr[varIndex], first, last));
break;
}
case 11: /* appendself */
if (objc != 4) {
goto wrongNumArgs;
}
if (varPtr[varIndex] == NULL) {
SetVarToObj(varPtr, varIndex, Tcl_NewObj());
}
/*
* If the object bound to variable "varIndex" is shared, we must
* "copy on write" and append to a copy of the object.
*/
if (Tcl_IsShared(varPtr[varIndex])) {
SetVarToObj(varPtr, varIndex, Tcl_DuplicateObj(varPtr[varIndex]));
}
string = Tcl_GetStringFromObj(varPtr[varIndex], &size);
if (Tcl_GetIntForIndex(interp, objv[3], size-1, &length) != TCL_OK) {
return TCL_ERROR;
}
if (length == TCL_INDEX_NONE) {
Tcl_SetObjResult(interp, Tcl_NewStringObj(
"index value out of range", -1));
return TCL_ERROR;
}
Tcl_AppendToObj(varPtr[varIndex], string + length, size - length);
Tcl_SetObjResult(interp, varPtr[varIndex]);
break;
case 12: /* appendself2 */
if (objc != 4) {
goto wrongNumArgs;
}
if (varPtr[varIndex] == NULL) {
SetVarToObj(varPtr, varIndex, Tcl_NewObj());
}
/*
* If the object bound to variable "varIndex" is shared, we must
* "copy on write" and append to a copy of the object.
*/
if (Tcl_IsShared(varPtr[varIndex])) {
SetVarToObj(varPtr, varIndex, Tcl_DuplicateObj(varPtr[varIndex]));
}
unicode = Tcl_GetUnicodeFromObj(varPtr[varIndex], &size);
if (Tcl_GetIntForIndex(interp, objv[3], size-1, &length) != TCL_OK) {
return TCL_ERROR;
}
if (length == TCL_INDEX_NONE) {
Tcl_SetObjResult(interp, Tcl_NewStringObj(
"index value out of range", -1));
return TCL_ERROR;
}
Tcl_AppendUnicodeToObj(varPtr[varIndex], unicode + length, size - length);
Tcl_SetObjResult(interp, varPtr[varIndex]);
break;
case 13: /* newunicode*/
unicode = (Tcl_UniChar *)Tcl_Alloc((objc - 3) * sizeof(Tcl_UniChar));
for (i = 0; i < (objc - 3); ++i) {
int val;
if (Tcl_GetIntFromObj(interp, objv[i + 3], &val) != TCL_OK) {
break;
}
unicode[i] = (Tcl_UniChar)val;
}
if (i < (objc-3)) {
Tcl_Free(unicode);
return TCL_ERROR;
}
SetVarToObj(varPtr, varIndex, Tcl_NewUnicodeObj(unicode, objc - 3));
Tcl_SetObjResult(interp, varPtr[varIndex]);
Tcl_Free(unicode);
break;
}
return TCL_OK;
}
/*
*------------------------------------------------------------------------
*
* TestbigdataCmd --
*
* Implements the Tcl command testbigdata
* testbigdata string ?LEN? ?SPLIT? - returns 01234567890123...
* testbigdata bytearray ?LEN? ?SPLIT? - returns {0 1 2 3 4 5 6 7 8 9 0 1 ...}
* testbigdata dict ?SIZE? - returns dict mapping integers to themselves
* If no arguments given, returns the pattern used to generate strings.
* If SPLIT is specified, the character at that position is set to "X".
*
* Results:
* TCL_OK - Success.
* TCL_ERROR - Error.
*
* Side effects:
* Interpreter result holds result or error message.
*
*------------------------------------------------------------------------
*/
static int
TestbigdataCmd (
TCL_UNUSED(void *),
Tcl_Interp *interp, /* Current interpreter. */
int objc, /* Number of arguments. */
Tcl_Obj *const objv[]) /* Argument objects. */
{
static const char *const subcmds[] = {
"string", "bytearray", "list", "dict", NULL
};
enum options {
BIGDATA_STRING, BIGDATA_BYTEARRAY, BIGDATA_LIST, BIGDATA_DICT
} idx;
char *s;
unsigned char *p;
Tcl_Size i, len, split;
Tcl_DString ds;
Tcl_Obj *objPtr;
#define PATTERN_LEN 10
Tcl_Obj *patternObjs[PATTERN_LEN];
if (objc < 2 || objc > 4) {
Tcl_WrongNumArgs(interp, 1, objv, "command ?len? ?split?");
return TCL_ERROR;
}
if (Tcl_GetIndexFromObj(interp, objv[1], subcmds, "option", 0,
&idx) != TCL_OK) {
return TCL_ERROR;
}
split = -1;
if (objc == 2) {
len = PATTERN_LEN;
} else {
if (Tcl_GetSizeIntFromObj(interp, objv[2], &len) != TCL_OK) {
return TCL_ERROR;
}
if (objc == 4) {
if (Tcl_GetSizeIntFromObj(interp, objv[3], &split) != TCL_OK) {
return TCL_ERROR;
}
if (split >= len) {
split = len - 1; /* Last position */
}
}
}
/* Need one byte for nul terminator */
Tcl_Size limit = TCL_SIZE_MAX-1;
if (len < 0 || len > limit) {
Tcl_SetObjResult(interp, Tcl_ObjPrintf(
"%s is greater than max permitted length %" TCL_SIZE_MODIFIER "d",
Tcl_GetString(objv[2]), limit));
return TCL_ERROR;
}
switch (idx) {
case BIGDATA_STRING:
Tcl_DStringInit(&ds);
Tcl_DStringSetLength(&ds, len);/* Also stores \0 at index len+1 */
s = Tcl_DStringValue(&ds);
for (i = 0; i < len; ++i) {
s[i] = '0' + (char)(i % PATTERN_LEN);
}
if (split >= 0) {
assert(split < len);
s[split] = 'X';
}
Tcl_DStringResult(interp, &ds);
break;
case BIGDATA_BYTEARRAY:
objPtr = Tcl_NewByteArrayObj(NULL, len);
p = Tcl_GetByteArrayFromObj(objPtr, &len);
for (i = 0; i < len; ++i) {
p[i] = (char)('0' + (i % PATTERN_LEN));
}
if (split >= 0) {
assert(split < len);
p[split] = 'X';
}
Tcl_SetObjResult(interp, objPtr);
break;
case BIGDATA_LIST:
for (i = 0; i < PATTERN_LEN; ++i) {
patternObjs[i] = Tcl_NewIntObj(i);
Tcl_IncrRefCount(patternObjs[i]);
}
objPtr = Tcl_NewListObj(len, NULL);
for (i = 0; i < len; ++i) {
Tcl_ListObjAppendElement(
interp, objPtr, patternObjs[i % PATTERN_LEN]);
}
if (split >= 0) {
assert(split < len);
Tcl_Obj *splitMarker = Tcl_NewStringObj("X", 1);
Tcl_ListObjReplace(interp, objPtr, split, 1, 1, &splitMarker);
}
for (i = 0; i < PATTERN_LEN; ++i) {
patternObjs[i] = Tcl_NewIntObj(i);
Tcl_DecrRefCount(patternObjs[i]);
}
Tcl_SetObjResult(interp, objPtr);
break;
case BIGDATA_DICT:
objPtr = Tcl_NewDictObj();
for (i = 0; i < len; ++i) {
Tcl_Obj *objPtr2 = Tcl_NewWideIntObj(i);
Tcl_DictObjPut(interp, objPtr, objPtr2, objPtr2);
}
Tcl_SetObjResult(interp, objPtr);
break;
}
return TCL_OK;
}
/*
*----------------------------------------------------------------------
*
* SetVarToObj --
*
* Utility routine to assign a Tcl_Obj* to a test variable. The
* Tcl_Obj* can be NULL.
*
* Results:
* None.
*
* Side effects:
* This routine handles ref counting details for assignment: i.e. the old
* value's ref count must be decremented (if not NULL) and the new one
* incremented (also if not NULL).
*
*----------------------------------------------------------------------
*/
static void
SetVarToObj(
Tcl_Obj **varPtr,
Tcl_Size varIndex, /* Designates the assignment variable. */
Tcl_Obj *objPtr) /* Points to object to assign to var. */
{
if (varPtr[varIndex] != NULL) {
Tcl_DecrRefCount(varPtr[varIndex]);
}
varPtr[varIndex] = objPtr;
if (objPtr != NULL) {
Tcl_IncrRefCount(objPtr);
}
}
/*
*----------------------------------------------------------------------
*
* GetVariableIndex --
*
* Utility routine to get a test variable index from the command line.
*
* Results:
* A standard Tcl object result.
*
* Side effects:
* None.
*
*----------------------------------------------------------------------
*/
static int
GetVariableIndex(
Tcl_Interp *interp, /* Interpreter for error reporting. */
Tcl_Obj *obj, /* The variable index
* specified as a nonnegative number less than
* NUMBER_OF_OBJECT_VARS. */
Tcl_Size *indexPtr) /* Place to store converted result. */
{
Tcl_Size index;
if (Tcl_GetIntForIndex(interp, obj, NUMBER_OF_OBJECT_VARS - 1, &index) != TCL_OK) {
return TCL_ERROR;
}
if (index == TCL_INDEX_NONE) {
Tcl_ResetResult(interp);
Tcl_AppendToObj(Tcl_GetObjResult(interp), "bad variable index", -1);
return TCL_ERROR;
}
*indexPtr = index;
return TCL_OK;
}
/*
*----------------------------------------------------------------------
*
* CheckIfVarUnset --
*
* Utility function that checks whether a test variable is readable:
* i.e., that varPtr[varIndex] is non-NULL.
*
* Results:
* 1 if the test variable is unset (NULL); 0 otherwise.
*
* Side effects:
* Sets the interpreter result to an error message if the variable is
* unset (NULL).
*
*----------------------------------------------------------------------
*/
static int
CheckIfVarUnset(
Tcl_Interp *interp, /* Interpreter for error reporting. */
Tcl_Obj ** varPtr,
Tcl_Size varIndex) /* Index of the test variable to check. */
{
if (varIndex < 0 || varPtr[varIndex] == NULL) {
char buf[32 + TCL_INTEGER_SPACE];
snprintf(buf, sizeof(buf), "variable %" TCL_SIZE_MODIFIER "d is unset (NULL)", varIndex);
Tcl_ResetResult(interp);
Tcl_AppendToObj(Tcl_GetObjResult(interp), buf, -1);
return 1;
}
return 0;
}
static int
TestisemptyCmd (
TCL_UNUSED(void *),
Tcl_Interp *interp, /* Current interpreter. */
int objc, /* Number of arguments. */
Tcl_Obj *const objv[]) /* Argument objects. */
{
Tcl_Obj *result;
if (objc != 2) {
Tcl_WrongNumArgs(interp, 1, objv, "value");
return TCL_ERROR;
}
result = Tcl_NewIntObj(Tcl_IsEmpty(objv[1]));
if (!objv[1]->bytes) {
Tcl_AppendToObj(result, " pure", TCL_INDEX_NONE);
}
if (objv[1]->typePtr) {
Tcl_AppendToObj(result, " ", TCL_INDEX_NONE);
Tcl_AppendToObj(result, objv[1]->typePtr->name, TCL_INDEX_NONE);
}
Tcl_SetObjResult(interp, result);
return TCL_OK;
}
/*
* Local Variables:
* mode: c
* c-basic-offset: 4
* fill-column: 78
* End:
*/