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Revision 44 - (show annotations) (download)
Fri Oct 14 02:09:58 2016 UTC (7 years, 8 months ago) by dashley
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Rename for reorganization.
1 /* $Header: /cvsroot/esrg/sfesrg/esrgpcpj/shared/tcl_base/tclint.h,v 1.1.1.1 2001/06/13 04:40:00 dtashley Exp $ */
2
3 /*
4 * tclInt.h --
5 *
6 * Declarations of things used internally by the Tcl interpreter.
7 *
8 * Copyright (c) 1987-1993 The Regents of the University of California.
9 * Copyright (c) 1993-1997 Lucent Technologies.
10 * Copyright (c) 1994-1998 Sun Microsystems, Inc.
11 * Copyright (c) 1998-1999 by Scriptics Corporation.
12 *
13 * See the file "license.terms" for information on usage and redistribution
14 * of this file, and for a DISCLAIMER OF ALL WARRANTIES.
15 *
16 * RCS: @(#) $Id: tclint.h,v 1.1.1.1 2001/06/13 04:40:00 dtashley Exp $
17 */
18
19 #ifndef _TCLINT
20 #define _TCLINT
21
22 /*
23 * Common include files needed by most of the Tcl source files are
24 * included here, so that system-dependent personalizations for the
25 * include files only have to be made in once place. This results
26 * in a few extra includes, but greater modularity. The order of
27 * the three groups of #includes is important. For example, stdio.h
28 * is needed by tcl.h, and the _ANSI_ARGS_ declaration in tcl.h is
29 * needed by stdlib.h in some configurations.
30 */
31
32 #include <stdio.h>
33
34 #ifndef _TCL
35 #include "tcl.h"
36 #endif
37
38 #include <ctype.h>
39 #ifdef NO_LIMITS_H
40 # include "../compat/limits.h"
41 #else
42 # include <limits.h>
43 #endif
44 #ifdef NO_STDLIB_H
45 # include "../compat/stdlib.h"
46 #else
47 # include <stdlib.h>
48 #endif
49 #ifdef NO_STRING_H
50 #include "../compat/string.h"
51 #else
52 #include <string.h>
53 #endif
54
55 #undef TCL_STORAGE_CLASS
56 #ifdef BUILD_tcl
57 # define TCL_STORAGE_CLASS DLLEXPORT
58 #else
59 # ifdef USE_TCL_STUBS
60 # define TCL_STORAGE_CLASS
61 # else
62 # define TCL_STORAGE_CLASS DLLIMPORT
63 # endif
64 #endif
65
66 /*
67 * The following procedures allow namespaces to be customized to
68 * support special name resolution rules for commands/variables.
69 *
70 */
71
72 struct Tcl_ResolvedVarInfo;
73
74 typedef Tcl_Var (Tcl_ResolveRuntimeVarProc) _ANSI_ARGS_((
75 Tcl_Interp* interp, struct Tcl_ResolvedVarInfo *vinfoPtr));
76
77 typedef void (Tcl_ResolveVarDeleteProc) _ANSI_ARGS_((
78 struct Tcl_ResolvedVarInfo *vinfoPtr));
79
80 /*
81 * The following structure encapsulates the routines needed to resolve a
82 * variable reference at runtime. Any variable specific state will typically
83 * be appended to this structure.
84 */
85
86
87 typedef struct Tcl_ResolvedVarInfo {
88 Tcl_ResolveRuntimeVarProc *fetchProc;
89 Tcl_ResolveVarDeleteProc *deleteProc;
90 } Tcl_ResolvedVarInfo;
91
92
93
94 typedef int (Tcl_ResolveCompiledVarProc) _ANSI_ARGS_((
95 Tcl_Interp* interp, char* name, int length,
96 Tcl_Namespace *context, Tcl_ResolvedVarInfo **rPtr));
97
98 typedef int (Tcl_ResolveVarProc) _ANSI_ARGS_((
99 Tcl_Interp* interp, char* name, Tcl_Namespace *context,
100 int flags, Tcl_Var *rPtr));
101
102 typedef int (Tcl_ResolveCmdProc) _ANSI_ARGS_((Tcl_Interp* interp,
103 char* name, Tcl_Namespace *context, int flags,
104 Tcl_Command *rPtr));
105
106 typedef struct Tcl_ResolverInfo {
107 Tcl_ResolveCmdProc *cmdResProc; /* Procedure handling command name
108 * resolution. */
109 Tcl_ResolveVarProc *varResProc; /* Procedure handling variable name
110 * resolution for variables that
111 * can only be handled at runtime. */
112 Tcl_ResolveCompiledVarProc *compiledVarResProc;
113 /* Procedure handling variable name
114 * resolution at compile time. */
115 } Tcl_ResolverInfo;
116
117 /*
118 *----------------------------------------------------------------
119 * Data structures related to namespaces.
120 *----------------------------------------------------------------
121 */
122
123 /*
124 * The structure below defines a namespace.
125 * Note: the first five fields must match exactly the fields in a
126 * Tcl_Namespace structure (see tcl.h). If you change one, be sure to
127 * change the other.
128 */
129
130 typedef struct Namespace {
131 char *name; /* The namespace's simple (unqualified)
132 * name. This contains no ::'s. The name of
133 * the global namespace is "" although "::"
134 * is an synonym. */
135 char *fullName; /* The namespace's fully qualified name.
136 * This starts with ::. */
137 ClientData clientData; /* An arbitrary value associated with this
138 * namespace. */
139 Tcl_NamespaceDeleteProc *deleteProc;
140 /* Procedure invoked when deleting the
141 * namespace to, e.g., free clientData. */
142 struct Namespace *parentPtr; /* Points to the namespace that contains
143 * this one. NULL if this is the global
144 * namespace. */
145 Tcl_HashTable childTable; /* Contains any child namespaces. Indexed
146 * by strings; values have type
147 * (Namespace *). */
148 long nsId; /* Unique id for the namespace. */
149 Tcl_Interp *interp; /* The interpreter containing this
150 * namespace. */
151 int flags; /* OR-ed combination of the namespace
152 * status flags NS_DYING and NS_DEAD
153 * listed below. */
154 int activationCount; /* Number of "activations" or active call
155 * frames for this namespace that are on
156 * the Tcl call stack. The namespace won't
157 * be freed until activationCount becomes
158 * zero. */
159 int refCount; /* Count of references by namespaceName *
160 * objects. The namespace can't be freed
161 * until refCount becomes zero. */
162 Tcl_HashTable cmdTable; /* Contains all the commands currently
163 * registered in the namespace. Indexed by
164 * strings; values have type (Command *).
165 * Commands imported by Tcl_Import have
166 * Command structures that point (via an
167 * ImportedCmdRef structure) to the
168 * Command structure in the source
169 * namespace's command table. */
170 Tcl_HashTable varTable; /* Contains all the (global) variables
171 * currently in this namespace. Indexed
172 * by strings; values have type (Var *). */
173 char **exportArrayPtr; /* Points to an array of string patterns
174 * specifying which commands are exported.
175 * A pattern may include "string match"
176 * style wildcard characters to specify
177 * multiple commands; however, no namespace
178 * qualifiers are allowed. NULL if no
179 * export patterns are registered. */
180 int numExportPatterns; /* Number of export patterns currently
181 * registered using "namespace export". */
182 int maxExportPatterns; /* Mumber of export patterns for which
183 * space is currently allocated. */
184 int cmdRefEpoch; /* Incremented if a newly added command
185 * shadows a command for which this
186 * namespace has already cached a Command *
187 * pointer; this causes all its cached
188 * Command* pointers to be invalidated. */
189 int resolverEpoch; /* Incremented whenever the name resolution
190 * rules change for this namespace; this
191 * invalidates all byte codes compiled in
192 * the namespace, causing the code to be
193 * recompiled under the new rules. */
194 Tcl_ResolveCmdProc *cmdResProc;
195 /* If non-null, this procedure overrides
196 * the usual command resolution mechanism
197 * in Tcl. This procedure is invoked
198 * within Tcl_FindCommand to resolve all
199 * command references within the namespace. */
200 Tcl_ResolveVarProc *varResProc;
201 /* If non-null, this procedure overrides
202 * the usual variable resolution mechanism
203 * in Tcl. This procedure is invoked
204 * within Tcl_FindNamespaceVar to resolve all
205 * variable references within the namespace
206 * at runtime. */
207 Tcl_ResolveCompiledVarProc *compiledVarResProc;
208 /* If non-null, this procedure overrides
209 * the usual variable resolution mechanism
210 * in Tcl. This procedure is invoked
211 * within LookupCompiledLocal to resolve
212 * variable references within the namespace
213 * at compile time. */
214 } Namespace;
215
216 /*
217 * Flags used to represent the status of a namespace:
218 *
219 * NS_DYING - 1 means Tcl_DeleteNamespace has been called to delete the
220 * namespace but there are still active call frames on the Tcl
221 * stack that refer to the namespace. When the last call frame
222 * referring to it has been popped, it's variables and command
223 * will be destroyed and it will be marked "dead" (NS_DEAD).
224 * The namespace can no longer be looked up by name.
225 * NS_DEAD - 1 means Tcl_DeleteNamespace has been called to delete the
226 * namespace and no call frames still refer to it. Its
227 * variables and command have already been destroyed. This bit
228 * allows the namespace resolution code to recognize that the
229 * namespace is "deleted". When the last namespaceName object
230 * in any byte code code unit that refers to the namespace has
231 * been freed (i.e., when the namespace's refCount is 0), the
232 * namespace's storage will be freed.
233 */
234
235 #define NS_DYING 0x01
236 #define NS_DEAD 0x02
237
238 /*
239 * Flag passed to TclGetNamespaceForQualName to have it create all namespace
240 * components of a namespace-qualified name that cannot be found. The new
241 * namespaces are created within their specified parent. Note that this
242 * flag's value must not conflict with the values of the flags
243 * TCL_GLOBAL_ONLY, TCL_NAMESPACE_ONLY, and FIND_ONLY_NS (defined in
244 * tclNamesp.c).
245 */
246
247 #define CREATE_NS_IF_UNKNOWN 0x800
248
249 /*
250 *----------------------------------------------------------------
251 * Data structures related to variables. These are used primarily
252 * in tclVar.c
253 *----------------------------------------------------------------
254 */
255
256 /*
257 * The following structure defines a variable trace, which is used to
258 * invoke a specific C procedure whenever certain operations are performed
259 * on a variable.
260 */
261
262 typedef struct VarTrace {
263 Tcl_VarTraceProc *traceProc;/* Procedure to call when operations given
264 * by flags are performed on variable. */
265 ClientData clientData; /* Argument to pass to proc. */
266 int flags; /* What events the trace procedure is
267 * interested in: OR-ed combination of
268 * TCL_TRACE_READS, TCL_TRACE_WRITES,
269 * TCL_TRACE_UNSETS and TCL_TRACE_ARRAY. */
270 struct VarTrace *nextPtr; /* Next in list of traces associated with
271 * a particular variable. */
272 } VarTrace;
273
274 /*
275 * When a variable trace is active (i.e. its associated procedure is
276 * executing), one of the following structures is linked into a list
277 * associated with the variable's interpreter. The information in
278 * the structure is needed in order for Tcl to behave reasonably
279 * if traces are deleted while traces are active.
280 */
281
282 typedef struct ActiveVarTrace {
283 struct Var *varPtr; /* Variable that's being traced. */
284 struct ActiveVarTrace *nextPtr;
285 /* Next in list of all active variable
286 * traces for the interpreter, or NULL
287 * if no more. */
288 VarTrace *nextTracePtr; /* Next trace to check after current
289 * trace procedure returns; if this
290 * trace gets deleted, must update pointer
291 * to avoid using free'd memory. */
292 } ActiveVarTrace;
293
294 /*
295 * The following structure describes an enumerative search in progress on
296 * an array variable; this are invoked with options to the "array"
297 * command.
298 */
299
300 typedef struct ArraySearch {
301 int id; /* Integer id used to distinguish among
302 * multiple concurrent searches for the
303 * same array. */
304 struct Var *varPtr; /* Pointer to array variable that's being
305 * searched. */
306 Tcl_HashSearch search; /* Info kept by the hash module about
307 * progress through the array. */
308 Tcl_HashEntry *nextEntry; /* Non-null means this is the next element
309 * to be enumerated (it's leftover from
310 * the Tcl_FirstHashEntry call or from
311 * an "array anymore" command). NULL
312 * means must call Tcl_NextHashEntry
313 * to get value to return. */
314 struct ArraySearch *nextPtr;/* Next in list of all active searches
315 * for this variable, or NULL if this is
316 * the last one. */
317 } ArraySearch;
318
319 /*
320 * The structure below defines a variable, which associates a string name
321 * with a Tcl_Obj value. These structures are kept in procedure call frames
322 * (for local variables recognized by the compiler) or in the heap (for
323 * global variables and any variable not known to the compiler). For each
324 * Var structure in the heap, a hash table entry holds the variable name and
325 * a pointer to the Var structure.
326 */
327
328 typedef struct Var {
329 union {
330 Tcl_Obj *objPtr; /* The variable's object value. Used for
331 * scalar variables and array elements. */
332 Tcl_HashTable *tablePtr;/* For array variables, this points to
333 * information about the hash table used
334 * to implement the associative array.
335 * Points to malloc-ed data. */
336 struct Var *linkPtr; /* If this is a global variable being
337 * referred to in a procedure, or a variable
338 * created by "upvar", this field points to
339 * the referenced variable's Var struct. */
340 } value;
341 char *name; /* NULL if the variable is in a hashtable,
342 * otherwise points to the variable's
343 * name. It is used, e.g., by TclLookupVar
344 * and "info locals". The storage for the
345 * characters of the name is not owned by
346 * the Var and must not be freed when
347 * freeing the Var. */
348 Namespace *nsPtr; /* Points to the namespace that contains
349 * this variable or NULL if the variable is
350 * a local variable in a Tcl procedure. */
351 Tcl_HashEntry *hPtr; /* If variable is in a hashtable, either the
352 * hash table entry that refers to this
353 * variable or NULL if the variable has been
354 * detached from its hash table (e.g. an
355 * array is deleted, but some of its
356 * elements are still referred to in
357 * upvars). NULL if the variable is not in a
358 * hashtable. This is used to delete an
359 * variable from its hashtable if it is no
360 * longer needed. */
361 int refCount; /* Counts number of active uses of this
362 * variable, not including its entry in the
363 * call frame or the hash table: 1 for each
364 * additional variable whose linkPtr points
365 * here, 1 for each nested trace active on
366 * variable, and 1 if the variable is a
367 * namespace variable. This record can't be
368 * deleted until refCount becomes 0. */
369 VarTrace *tracePtr; /* First in list of all traces set for this
370 * variable. */
371 ArraySearch *searchPtr; /* First in list of all searches active
372 * for this variable, or NULL if none. */
373 int flags; /* Miscellaneous bits of information about
374 * variable. See below for definitions. */
375 } Var;
376
377 /*
378 * Flag bits for variables. The first three (VAR_SCALAR, VAR_ARRAY, and
379 * VAR_LINK) are mutually exclusive and give the "type" of the variable.
380 * VAR_UNDEFINED is independent of the variable's type.
381 *
382 * VAR_SCALAR - 1 means this is a scalar variable and not
383 * an array or link. The "objPtr" field points
384 * to the variable's value, a Tcl object.
385 * VAR_ARRAY - 1 means this is an array variable rather
386 * than a scalar variable or link. The
387 * "tablePtr" field points to the array's
388 * hashtable for its elements.
389 * VAR_LINK - 1 means this Var structure contains a
390 * pointer to another Var structure that
391 * either has the real value or is itself
392 * another VAR_LINK pointer. Variables like
393 * this come about through "upvar" and "global"
394 * commands, or through references to variables
395 * in enclosing namespaces.
396 * VAR_UNDEFINED - 1 means that the variable is in the process
397 * of being deleted. An undefined variable
398 * logically does not exist and survives only
399 * while it has a trace, or if it is a global
400 * variable currently being used by some
401 * procedure.
402 * VAR_IN_HASHTABLE - 1 means this variable is in a hashtable and
403 * the Var structure is malloced. 0 if it is
404 * a local variable that was assigned a slot
405 * in a procedure frame by the compiler so the
406 * Var storage is part of the call frame.
407 * VAR_TRACE_ACTIVE - 1 means that trace processing is currently
408 * underway for a read or write access, so
409 * new read or write accesses should not cause
410 * trace procedures to be called and the
411 * variable can't be deleted.
412 * VAR_ARRAY_ELEMENT - 1 means that this variable is an array
413 * element, so it is not legal for it to be
414 * an array itself (the VAR_ARRAY flag had
415 * better not be set).
416 * VAR_NAMESPACE_VAR - 1 means that this variable was declared
417 * as a namespace variable. This flag ensures
418 * it persists until its namespace is
419 * destroyed or until the variable is unset;
420 * it will persist even if it has not been
421 * initialized and is marked undefined.
422 * The variable's refCount is incremented to
423 * reflect the "reference" from its namespace.
424 *
425 * The following additional flags are used with the CompiledLocal type
426 * defined below:
427 *
428 * VAR_ARGUMENT - 1 means that this variable holds a procedure
429 * argument.
430 * VAR_TEMPORARY - 1 if the local variable is an anonymous
431 * temporary variable. Temporaries have a NULL
432 * name.
433 * VAR_RESOLVED - 1 if name resolution has been done for this
434 * variable.
435 */
436
437 #define VAR_SCALAR 0x1
438 #define VAR_ARRAY 0x2
439 #define VAR_LINK 0x4
440 #define VAR_UNDEFINED 0x8
441 #define VAR_IN_HASHTABLE 0x10
442 #define VAR_TRACE_ACTIVE 0x20
443 #define VAR_ARRAY_ELEMENT 0x40
444 #define VAR_NAMESPACE_VAR 0x80
445
446 #define VAR_ARGUMENT 0x100
447 #define VAR_TEMPORARY 0x200
448 #define VAR_RESOLVED 0x400
449
450 /*
451 * Macros to ensure that various flag bits are set properly for variables.
452 * The ANSI C "prototypes" for these macros are:
453 *
454 * EXTERN void TclSetVarScalar _ANSI_ARGS_((Var *varPtr));
455 * EXTERN void TclSetVarArray _ANSI_ARGS_((Var *varPtr));
456 * EXTERN void TclSetVarLink _ANSI_ARGS_((Var *varPtr));
457 * EXTERN void TclSetVarArrayElement _ANSI_ARGS_((Var *varPtr));
458 * EXTERN void TclSetVarUndefined _ANSI_ARGS_((Var *varPtr));
459 * EXTERN void TclClearVarUndefined _ANSI_ARGS_((Var *varPtr));
460 */
461
462 #define TclSetVarScalar(varPtr) \
463 (varPtr)->flags = ((varPtr)->flags & ~(VAR_ARRAY|VAR_LINK)) | VAR_SCALAR
464
465 #define TclSetVarArray(varPtr) \
466 (varPtr)->flags = ((varPtr)->flags & ~(VAR_SCALAR|VAR_LINK)) | VAR_ARRAY
467
468 #define TclSetVarLink(varPtr) \
469 (varPtr)->flags = ((varPtr)->flags & ~(VAR_SCALAR|VAR_ARRAY)) | VAR_LINK
470
471 #define TclSetVarArrayElement(varPtr) \
472 (varPtr)->flags = ((varPtr)->flags & ~VAR_ARRAY) | VAR_ARRAY_ELEMENT
473
474 #define TclSetVarUndefined(varPtr) \
475 (varPtr)->flags |= VAR_UNDEFINED
476
477 #define TclClearVarUndefined(varPtr) \
478 (varPtr)->flags &= ~VAR_UNDEFINED
479
480 /*
481 * Macros to read various flag bits of variables.
482 * The ANSI C "prototypes" for these macros are:
483 *
484 * EXTERN int TclIsVarScalar _ANSI_ARGS_((Var *varPtr));
485 * EXTERN int TclIsVarLink _ANSI_ARGS_((Var *varPtr));
486 * EXTERN int TclIsVarArray _ANSI_ARGS_((Var *varPtr));
487 * EXTERN int TclIsVarUndefined _ANSI_ARGS_((Var *varPtr));
488 * EXTERN int TclIsVarArrayElement _ANSI_ARGS_((Var *varPtr));
489 * EXTERN int TclIsVarTemporary _ANSI_ARGS_((Var *varPtr));
490 * EXTERN int TclIsVarArgument _ANSI_ARGS_((Var *varPtr));
491 * EXTERN int TclIsVarResolved _ANSI_ARGS_((Var *varPtr));
492 */
493
494 #define TclIsVarScalar(varPtr) \
495 ((varPtr)->flags & VAR_SCALAR)
496
497 #define TclIsVarLink(varPtr) \
498 ((varPtr)->flags & VAR_LINK)
499
500 #define TclIsVarArray(varPtr) \
501 ((varPtr)->flags & VAR_ARRAY)
502
503 #define TclIsVarUndefined(varPtr) \
504 ((varPtr)->flags & VAR_UNDEFINED)
505
506 #define TclIsVarArrayElement(varPtr) \
507 ((varPtr)->flags & VAR_ARRAY_ELEMENT)
508
509 #define TclIsVarTemporary(varPtr) \
510 ((varPtr)->flags & VAR_TEMPORARY)
511
512 #define TclIsVarArgument(varPtr) \
513 ((varPtr)->flags & VAR_ARGUMENT)
514
515 #define TclIsVarResolved(varPtr) \
516 ((varPtr)->flags & VAR_RESOLVED)
517
518 /*
519 *----------------------------------------------------------------
520 * Data structures related to procedures. These are used primarily
521 * in tclProc.c, tclCompile.c, and tclExecute.c.
522 *----------------------------------------------------------------
523 */
524
525 /*
526 * Forward declaration to prevent an error when the forward reference to
527 * Command is encountered in the Proc and ImportRef types declared below.
528 */
529
530 struct Command;
531
532 /*
533 * The variable-length structure below describes a local variable of a
534 * procedure that was recognized by the compiler. These variables have a
535 * name, an element in the array of compiler-assigned local variables in the
536 * procedure's call frame, and various other items of information. If the
537 * local variable is a formal argument, it may also have a default value.
538 * The compiler can't recognize local variables whose names are
539 * expressions (these names are only known at runtime when the expressions
540 * are evaluated) or local variables that are created as a result of an
541 * "upvar" or "uplevel" command. These other local variables are kept
542 * separately in a hash table in the call frame.
543 */
544
545 typedef struct CompiledLocal {
546 struct CompiledLocal *nextPtr;
547 /* Next compiler-recognized local variable
548 * for this procedure, or NULL if this is
549 * the last local. */
550 int nameLength; /* The number of characters in local
551 * variable's name. Used to speed up
552 * variable lookups. */
553 int frameIndex; /* Index in the array of compiler-assigned
554 * variables in the procedure call frame. */
555 int flags; /* Flag bits for the local variable. Same as
556 * the flags for the Var structure above,
557 * although only VAR_SCALAR, VAR_ARRAY,
558 * VAR_LINK, VAR_ARGUMENT, VAR_TEMPORARY, and
559 * VAR_RESOLVED make sense. */
560 Tcl_Obj *defValuePtr; /* Pointer to the default value of an
561 * argument, if any. NULL if not an argument
562 * or, if an argument, no default value. */
563 Tcl_ResolvedVarInfo *resolveInfo;
564 /* Customized variable resolution info
565 * supplied by the Tcl_ResolveCompiledVarProc
566 * associated with a namespace. Each variable
567 * is marked by a unique ClientData tag
568 * during compilation, and that same tag
569 * is used to find the variable at runtime. */
570 char name[4]; /* Name of the local variable starts here.
571 * If the name is NULL, this will just be
572 * '\0'. The actual size of this field will
573 * be large enough to hold the name. MUST
574 * BE THE LAST FIELD IN THE STRUCTURE! */
575 } CompiledLocal;
576
577 /*
578 * The structure below defines a command procedure, which consists of a
579 * collection of Tcl commands plus information about arguments and other
580 * local variables recognized at compile time.
581 */
582
583 typedef struct Proc {
584 struct Interp *iPtr; /* Interpreter for which this command
585 * is defined. */
586 int refCount; /* Reference count: 1 if still present
587 * in command table plus 1 for each call
588 * to the procedure that is currently
589 * active. This structure can be freed
590 * when refCount becomes zero. */
591 struct Command *cmdPtr; /* Points to the Command structure for
592 * this procedure. This is used to get
593 * the namespace in which to execute
594 * the procedure. */
595 Tcl_Obj *bodyPtr; /* Points to the ByteCode object for
596 * procedure's body command. */
597 int numArgs; /* Number of formal parameters. */
598 int numCompiledLocals; /* Count of local variables recognized by
599 * the compiler including arguments and
600 * temporaries. */
601 CompiledLocal *firstLocalPtr; /* Pointer to first of the procedure's
602 * compiler-allocated local variables, or
603 * NULL if none. The first numArgs entries
604 * in this list describe the procedure's
605 * formal arguments. */
606 CompiledLocal *lastLocalPtr; /* Pointer to the last allocated local
607 * variable or NULL if none. This has
608 * frame index (numCompiledLocals-1). */
609 } Proc;
610
611 /*
612 * The structure below defines a command trace. This is used to allow Tcl
613 * clients to find out whenever a command is about to be executed.
614 */
615
616 typedef struct Trace {
617 int level; /* Only trace commands at nesting level
618 * less than or equal to this. */
619 Tcl_CmdTraceProc *proc; /* Procedure to call to trace command. */
620 ClientData clientData; /* Arbitrary value to pass to proc. */
621 struct Trace *nextPtr; /* Next in list of traces for this interp. */
622 } Trace;
623
624 /*
625 * The structure below defines an entry in the assocData hash table which
626 * is associated with an interpreter. The entry contains a pointer to a
627 * function to call when the interpreter is deleted, and a pointer to
628 * a user-defined piece of data.
629 */
630
631 typedef struct AssocData {
632 Tcl_InterpDeleteProc *proc; /* Proc to call when deleting. */
633 ClientData clientData; /* Value to pass to proc. */
634 } AssocData;
635
636 /*
637 * The structure below defines a call frame. A call frame defines a naming
638 * context for a procedure call: its local naming scope (for local
639 * variables) and its global naming scope (a namespace, perhaps the global
640 * :: namespace). A call frame can also define the naming context for a
641 * namespace eval or namespace inscope command: the namespace in which the
642 * command's code should execute. The Tcl_CallFrame structures exist only
643 * while procedures or namespace eval/inscope's are being executed, and
644 * provide a kind of Tcl call stack.
645 *
646 * WARNING!! The structure definition must be kept consistent with the
647 * Tcl_CallFrame structure in tcl.h. If you change one, change the other.
648 */
649
650 typedef struct CallFrame {
651 Namespace *nsPtr; /* Points to the namespace used to resolve
652 * commands and global variables. */
653 int isProcCallFrame; /* If nonzero, the frame was pushed to
654 * execute a Tcl procedure and may have
655 * local vars. If 0, the frame was pushed
656 * to execute a namespace command and var
657 * references are treated as references to
658 * namespace vars; varTablePtr and
659 * compiledLocals are ignored. */
660 int objc; /* This and objv below describe the
661 * arguments for this procedure call. */
662 Tcl_Obj *CONST *objv; /* Array of argument objects. */
663 struct CallFrame *callerPtr;
664 /* Value of interp->framePtr when this
665 * procedure was invoked (i.e. next higher
666 * in stack of all active procedures). */
667 struct CallFrame *callerVarPtr;
668 /* Value of interp->varFramePtr when this
669 * procedure was invoked (i.e. determines
670 * variable scoping within caller). Same
671 * as callerPtr unless an "uplevel" command
672 * or something equivalent was active in
673 * the caller). */
674 int level; /* Level of this procedure, for "uplevel"
675 * purposes (i.e. corresponds to nesting of
676 * callerVarPtr's, not callerPtr's). 1 for
677 * outermost procedure, 0 for top-level. */
678 Proc *procPtr; /* Points to the structure defining the
679 * called procedure. Used to get information
680 * such as the number of compiled local
681 * variables (local variables assigned
682 * entries ["slots"] in the compiledLocals
683 * array below). */
684 Tcl_HashTable *varTablePtr; /* Hash table containing local variables not
685 * recognized by the compiler, or created at
686 * execution time through, e.g., upvar.
687 * Initially NULL and created if needed. */
688 int numCompiledLocals; /* Count of local variables recognized by
689 * the compiler including arguments. */
690 Var* compiledLocals; /* Points to the array of local variables
691 * recognized by the compiler. The compiler
692 * emits code that refers to these variables
693 * using an index into this array. */
694 } CallFrame;
695
696 /*
697 *----------------------------------------------------------------
698 * Data structures and procedures related to TclHandles, which
699 * are a very lightweight method of preserving enough information
700 * to determine if an arbitrary malloc'd block has been deleted.
701 *----------------------------------------------------------------
702 */
703
704 typedef VOID **TclHandle;
705
706 EXTERN TclHandle TclHandleCreate _ANSI_ARGS_((VOID *ptr));
707 EXTERN void TclHandleFree _ANSI_ARGS_((TclHandle handle));
708 EXTERN TclHandle TclHandlePreserve _ANSI_ARGS_((TclHandle handle));
709 EXTERN void TclHandleRelease _ANSI_ARGS_((TclHandle handle));
710
711 /*
712 *----------------------------------------------------------------
713 * Data structures related to history. These are used primarily
714 * in tclHistory.c
715 *----------------------------------------------------------------
716 */
717
718 /*
719 * The structure below defines one history event (a previously-executed
720 * command that can be re-executed in whole or in part).
721 */
722
723 typedef struct {
724 char *command; /* String containing previously-executed
725 * command. */
726 int bytesAvl; /* Total # of bytes available at *event (not
727 * all are necessarily in use now). */
728 } HistoryEvent;
729
730 /*
731 * The structure below defines a pending revision to the most recent
732 * history event. Changes are linked together into a list and applied
733 * during the next call to Tcl_RecordHistory. See the comments at the
734 * beginning of tclHistory.c for information on revisions.
735 */
736
737 typedef struct HistoryRev {
738 int firstIndex; /* Index of the first byte to replace in
739 * current history event. */
740 int lastIndex; /* Index of last byte to replace in
741 * current history event. */
742 int newSize; /* Number of bytes in newBytes. */
743 char *newBytes; /* Replacement for the range given by
744 * firstIndex and lastIndex (malloced). */
745 struct HistoryRev *nextPtr; /* Next in chain of revisions to apply, or
746 * NULL for end of list. */
747 } HistoryRev;
748
749 /*
750 *----------------------------------------------------------------
751 * Data structures related to expressions. These are used only in
752 * tclExpr.c.
753 *----------------------------------------------------------------
754 */
755
756 /*
757 * The data structure below defines a math function (e.g. sin or hypot)
758 * for use in Tcl expressions.
759 */
760
761 #define MAX_MATH_ARGS 5
762 typedef struct MathFunc {
763 int builtinFuncIndex; /* If this is a builtin math function, its
764 * index in the array of builtin functions.
765 * (tclCompilation.h lists these indices.)
766 * The value is -1 if this is a new function
767 * defined by Tcl_CreateMathFunc. The value
768 * is also -1 if a builtin function is
769 * replaced by a Tcl_CreateMathFunc call. */
770 int numArgs; /* Number of arguments for function. */
771 Tcl_ValueType argTypes[MAX_MATH_ARGS];
772 /* Acceptable types for each argument. */
773 Tcl_MathProc *proc; /* Procedure that implements this function.
774 * NULL if isBuiltinFunc is 1. */
775 ClientData clientData; /* Additional argument to pass to the
776 * function when invoking it. NULL if
777 * isBuiltinFunc is 1. */
778 } MathFunc;
779
780 /*
781 * These are a thin layer over TclpThreadKeyDataGet and TclpThreadKeyDataSet
782 * when threads are used, or an emulation if there are no threads. These
783 * are really internal and Tcl clients should use Tcl_GetThreadData.
784 */
785
786 EXTERN VOID *TclThreadDataKeyGet _ANSI_ARGS_((Tcl_ThreadDataKey *keyPtr));
787 EXTERN void TclThreadDataKeySet _ANSI_ARGS_((Tcl_ThreadDataKey *keyPtr, VOID *data));
788
789 /*
790 * This is a convenience macro used to initialize a thread local storage ptr.
791 */
792 #define TCL_TSD_INIT(keyPtr) (ThreadSpecificData *)Tcl_GetThreadData((keyPtr), sizeof(ThreadSpecificData))
793
794
795 /*
796 *----------------------------------------------------------------
797 * Data structures related to bytecode compilation and execution.
798 * These are used primarily in tclCompile.c, tclExecute.c, and
799 * tclBasic.c.
800 *----------------------------------------------------------------
801 */
802
803 /*
804 * Forward declaration to prevent errors when the forward references to
805 * Tcl_Parse and CompileEnv are encountered in the procedure type
806 * CompileProc declared below.
807 */
808
809 struct CompileEnv;
810
811 /*
812 * The type of procedures called by the Tcl bytecode compiler to compile
813 * commands. Pointers to these procedures are kept in the Command structure
814 * describing each command. When a CompileProc returns, the interpreter's
815 * result is set to error information, if any. In addition, the CompileProc
816 * returns an integer value, which is one of the following:
817 *
818 * TCL_OK Compilation completed normally.
819 * TCL_ERROR Compilation failed because of an error;
820 * the interpreter's result describes what went wrong.
821 * TCL_OUT_LINE_COMPILE Compilation failed because, e.g., the command is
822 * too complex for effective inline compilation. The
823 * CompileProc believes the command is legal but
824 * should be compiled "out of line" by emitting code
825 * to invoke its command procedure at runtime.
826 */
827
828 #define TCL_OUT_LINE_COMPILE (TCL_CONTINUE + 1)
829
830 typedef int (CompileProc) _ANSI_ARGS_((Tcl_Interp *interp,
831 Tcl_Parse *parsePtr, struct CompileEnv *compEnvPtr));
832
833 /*
834 * The type of procedure called from the compilation hook point in
835 * SetByteCodeFromAny.
836 */
837
838 typedef int (CompileHookProc) _ANSI_ARGS_((Tcl_Interp *interp,
839 struct CompileEnv *compEnvPtr, ClientData clientData));
840
841 /*
842 * The data structure defining the execution environment for ByteCode's.
843 * There is one ExecEnv structure per Tcl interpreter. It holds the
844 * evaluation stack that holds command operands and results. The stack grows
845 * towards increasing addresses. The "stackTop" member is cached by
846 * TclExecuteByteCode in a local variable: it must be set before calling
847 * TclExecuteByteCode and will be restored by TclExecuteByteCode before it
848 * returns.
849 */
850
851 typedef struct ExecEnv {
852 Tcl_Obj **stackPtr; /* Points to the first item in the
853 * evaluation stack on the heap. */
854 int stackTop; /* Index of current top of stack; -1 when
855 * the stack is empty. */
856 int stackEnd; /* Index of last usable item in stack. */
857 } ExecEnv;
858
859 /*
860 * The definitions for the LiteralTable and LiteralEntry structures. Each
861 * interpreter contains a LiteralTable. It is used to reduce the storage
862 * needed for all the Tcl objects that hold the literals of scripts compiled
863 * by the interpreter. A literal's object is shared by all the ByteCodes
864 * that refer to the literal. Each distinct literal has one LiteralEntry
865 * entry in the LiteralTable. A literal table is a specialized hash table
866 * that is indexed by the literal's string representation, which may contain
867 * null characters.
868 *
869 * Note that we reduce the space needed for literals by sharing literal
870 * objects both within a ByteCode (each ByteCode contains a local
871 * LiteralTable) and across all an interpreter's ByteCodes (with the
872 * interpreter's global LiteralTable).
873 */
874
875 typedef struct LiteralEntry {
876 struct LiteralEntry *nextPtr; /* Points to next entry in this
877 * hash bucket or NULL if end of
878 * chain. */
879 Tcl_Obj *objPtr; /* Points to Tcl object that
880 * holds the literal's bytes and
881 * length. */
882 int refCount; /* If in an interpreter's global
883 * literal table, the number of
884 * ByteCode structures that share
885 * the literal object; the literal
886 * entry can be freed when refCount
887 * drops to 0. If in a local literal
888 * table, -1. */
889 } LiteralEntry;
890
891 typedef struct LiteralTable {
892 LiteralEntry **buckets; /* Pointer to bucket array. Each
893 * element points to first entry in
894 * bucket's hash chain, or NULL. */
895 LiteralEntry *staticBuckets[TCL_SMALL_HASH_TABLE];
896 /* Bucket array used for small
897 * tables to avoid mallocs and
898 * frees. */
899 int numBuckets; /* Total number of buckets allocated
900 * at **buckets. */
901 int numEntries; /* Total number of entries present
902 * in table. */
903 int rebuildSize; /* Enlarge table when numEntries
904 * gets to be this large. */
905 int mask; /* Mask value used in hashing
906 * function. */
907 } LiteralTable;
908
909 /*
910 * The following structure defines for each Tcl interpreter various
911 * statistics-related information about the bytecode compiler and
912 * interpreter's operation in that interpreter.
913 */
914
915 #ifdef TCL_COMPILE_STATS
916 typedef struct ByteCodeStats {
917 long numExecutions; /* Number of ByteCodes executed. */
918 long numCompilations; /* Number of ByteCodes created. */
919 long numByteCodesFreed; /* Number of ByteCodes destroyed. */
920 long instructionCount[256]; /* Number of times each instruction was
921 * executed. */
922
923 double totalSrcBytes; /* Total source bytes ever compiled. */
924 double totalByteCodeBytes; /* Total bytes for all ByteCodes. */
925 double currentSrcBytes; /* Src bytes for all current ByteCodes. */
926 double currentByteCodeBytes; /* Code bytes in all current ByteCodes. */
927
928 long srcCount[32]; /* Source size distribution: # of srcs of
929 * size [2**(n-1)..2**n), n in [0..32). */
930 long byteCodeCount[32]; /* ByteCode size distribution. */
931 long lifetimeCount[32]; /* ByteCode lifetime distribution (ms). */
932
933 double currentInstBytes; /* Instruction bytes-current ByteCodes. */
934 double currentLitBytes; /* Current literal bytes. */
935 double currentExceptBytes; /* Current exception table bytes. */
936 double currentAuxBytes; /* Current auxiliary information bytes. */
937 double currentCmdMapBytes; /* Current src<->code map bytes. */
938
939 long numLiteralsCreated; /* Total literal objects ever compiled. */
940 double totalLitStringBytes; /* Total string bytes in all literals. */
941 double currentLitStringBytes; /* String bytes in current literals. */
942 long literalCount[32]; /* Distribution of literal string sizes. */
943 } ByteCodeStats;
944 #endif /* TCL_COMPILE_STATS */
945
946 /*
947 *----------------------------------------------------------------
948 * Data structures related to commands.
949 *----------------------------------------------------------------
950 */
951
952 /*
953 * An imported command is created in an namespace when it imports a "real"
954 * command from another namespace. An imported command has a Command
955 * structure that points (via its ClientData value) to the "real" Command
956 * structure in the source namespace's command table. The real command
957 * records all the imported commands that refer to it in a list of ImportRef
958 * structures so that they can be deleted when the real command is deleted. */
959
960 typedef struct ImportRef {
961 struct Command *importedCmdPtr;
962 /* Points to the imported command created in
963 * an importing namespace; this command
964 * redirects its invocations to the "real"
965 * command. */
966 struct ImportRef *nextPtr; /* Next element on the linked list of
967 * imported commands that refer to the
968 * "real" command. The real command deletes
969 * these imported commands on this list when
970 * it is deleted. */
971 } ImportRef;
972
973 /*
974 * Data structure used as the ClientData of imported commands: commands
975 * created in an namespace when it imports a "real" command from another
976 * namespace.
977 */
978
979 typedef struct ImportedCmdData {
980 struct Command *realCmdPtr; /* "Real" command that this imported command
981 * refers to. */
982 struct Command *selfPtr; /* Pointer to this imported command. Needed
983 * only when deleting it in order to remove
984 * it from the real command's linked list of
985 * imported commands that refer to it. */
986 } ImportedCmdData;
987
988 /*
989 * A Command structure exists for each command in a namespace. The
990 * Tcl_Command opaque type actually refers to these structures.
991 */
992
993 typedef struct Command {
994 Tcl_HashEntry *hPtr; /* Pointer to the hash table entry that
995 * refers to this command. The hash table is
996 * either a namespace's command table or an
997 * interpreter's hidden command table. This
998 * pointer is used to get a command's name
999 * from its Tcl_Command handle. NULL means
1000 * that the hash table entry has been
1001 * removed already (this can happen if
1002 * deleteProc causes the command to be
1003 * deleted or recreated). */
1004 Namespace *nsPtr; /* Points to the namespace containing this
1005 * command. */
1006 int refCount; /* 1 if in command hashtable plus 1 for each
1007 * reference from a CmdName Tcl object
1008 * representing a command's name in a
1009 * ByteCode instruction sequence. This
1010 * structure can be freed when refCount
1011 * becomes zero. */
1012 int cmdEpoch; /* Incremented to invalidate any references
1013 * that point to this command when it is
1014 * renamed, deleted, hidden, or exposed. */
1015 CompileProc *compileProc; /* Procedure called to compile command. NULL
1016 * if no compile proc exists for command. */
1017 Tcl_ObjCmdProc *objProc; /* Object-based command procedure. */
1018 ClientData objClientData; /* Arbitrary value passed to object proc. */
1019 Tcl_CmdProc *proc; /* String-based command procedure. */
1020 ClientData clientData; /* Arbitrary value passed to string proc. */
1021 Tcl_CmdDeleteProc *deleteProc;
1022 /* Procedure invoked when deleting command
1023 * to, e.g., free all client data. */
1024 ClientData deleteData; /* Arbitrary value passed to deleteProc. */
1025 int deleted; /* Means that the command is in the process
1026 * of being deleted (its deleteProc is
1027 * currently executing). Other attempts to
1028 * delete the command should be ignored. */
1029 ImportRef *importRefPtr; /* List of each imported Command created in
1030 * another namespace when this command is
1031 * imported. These imported commands
1032 * redirect invocations back to this
1033 * command. The list is used to remove all
1034 * those imported commands when deleting
1035 * this "real" command. */
1036 } Command;
1037
1038 /*
1039 *----------------------------------------------------------------
1040 * Data structures related to name resolution procedures.
1041 *----------------------------------------------------------------
1042 */
1043
1044 /*
1045 * The interpreter keeps a linked list of name resolution schemes.
1046 * The scheme for a namespace is consulted first, followed by the
1047 * list of schemes in an interpreter, followed by the default
1048 * name resolution in Tcl. Schemes are added/removed from the
1049 * interpreter's list by calling Tcl_AddInterpResolver and
1050 * Tcl_RemoveInterpResolver.
1051 */
1052
1053 typedef struct ResolverScheme {
1054 char *name; /* Name identifying this scheme. */
1055 Tcl_ResolveCmdProc *cmdResProc;
1056 /* Procedure handling command name
1057 * resolution. */
1058 Tcl_ResolveVarProc *varResProc;
1059 /* Procedure handling variable name
1060 * resolution for variables that
1061 * can only be handled at runtime. */
1062 Tcl_ResolveCompiledVarProc *compiledVarResProc;
1063 /* Procedure handling variable name
1064 * resolution at compile time. */
1065
1066 struct ResolverScheme *nextPtr;
1067 /* Pointer to next record in linked list. */
1068 } ResolverScheme;
1069
1070 /*
1071 *----------------------------------------------------------------
1072 * This structure defines an interpreter, which is a collection of
1073 * commands plus other state information related to interpreting
1074 * commands, such as variable storage. Primary responsibility for
1075 * this data structure is in tclBasic.c, but almost every Tcl
1076 * source file uses something in here.
1077 *----------------------------------------------------------------
1078 */
1079
1080 typedef struct Interp {
1081
1082 /*
1083 * Note: the first three fields must match exactly the fields in
1084 * a Tcl_Interp struct (see tcl.h). If you change one, be sure to
1085 * change the other.
1086 *
1087 * The interpreter's result is held in both the string and the
1088 * objResultPtr fields. These fields hold, respectively, the result's
1089 * string or object value. The interpreter's result is always in the
1090 * result field if that is non-empty, otherwise it is in objResultPtr.
1091 * The two fields are kept consistent unless some C code sets
1092 * interp->result directly. Programs should not access result and
1093 * objResultPtr directly; instead, they should always get and set the
1094 * result using procedures such as Tcl_SetObjResult, Tcl_GetObjResult,
1095 * and Tcl_GetStringResult. See the SetResult man page for details.
1096 */
1097
1098 char *result; /* If the last command returned a string
1099 * result, this points to it. Should not be
1100 * accessed directly; see comment above. */
1101 Tcl_FreeProc *freeProc; /* Zero means a string result is statically
1102 * allocated. TCL_DYNAMIC means string
1103 * result was allocated with ckalloc and
1104 * should be freed with ckfree. Other values
1105 * give address of procedure to invoke to
1106 * free the string result. Tcl_Eval must
1107 * free it before executing next command. */
1108 int errorLine; /* When TCL_ERROR is returned, this gives
1109 * the line number in the command where the
1110 * error occurred (1 means first line). */
1111 struct TclStubs *stubTable;
1112 /* Pointer to the exported Tcl stub table.
1113 * On previous versions of Tcl this is a
1114 * pointer to the objResultPtr or a pointer
1115 * to a buckets array in a hash table. We
1116 * therefore have to do some careful checking
1117 * before we can use this. */
1118
1119 TclHandle handle; /* Handle used to keep track of when this
1120 * interp is deleted. */
1121
1122 Namespace *globalNsPtr; /* The interpreter's global namespace. */
1123 Tcl_HashTable *hiddenCmdTablePtr;
1124 /* Hash table used by tclBasic.c to keep
1125 * track of hidden commands on a per-interp
1126 * basis. */
1127 ClientData interpInfo; /* Information used by tclInterp.c to keep
1128 * track of master/slave interps on
1129 * a per-interp basis. */
1130 Tcl_HashTable mathFuncTable;/* Contains all the math functions currently
1131 * defined for the interpreter. Indexed by
1132 * strings (function names); values have
1133 * type (MathFunc *). */
1134
1135
1136
1137 /*
1138 * Information related to procedures and variables. See tclProc.c
1139 * and tclvar.c for usage.
1140 */
1141
1142 int numLevels; /* Keeps track of how many nested calls to
1143 * Tcl_Eval are in progress for this
1144 * interpreter. It's used to delay deletion
1145 * of the table until all Tcl_Eval
1146 * invocations are completed. */
1147 int maxNestingDepth; /* If numLevels exceeds this value then Tcl
1148 * assumes that infinite recursion has
1149 * occurred and it generates an error. */
1150 CallFrame *framePtr; /* Points to top-most in stack of all nested
1151 * procedure invocations. NULL means there
1152 * are no active procedures. */
1153 CallFrame *varFramePtr; /* Points to the call frame whose variables
1154 * are currently in use (same as framePtr
1155 * unless an "uplevel" command is
1156 * executing). NULL means no procedure is
1157 * active or "uplevel 0" is executing. */
1158 ActiveVarTrace *activeTracePtr;
1159 /* First in list of active traces for
1160 * interp, or NULL if no active traces. */
1161 int returnCode; /* Completion code to return if current
1162 * procedure exits with TCL_RETURN code. */
1163 char *errorInfo; /* Value to store in errorInfo if returnCode
1164 * is TCL_ERROR. Malloc'ed, may be NULL */
1165 char *errorCode; /* Value to store in errorCode if returnCode
1166 * is TCL_ERROR. Malloc'ed, may be NULL */
1167
1168 /*
1169 * Information used by Tcl_AppendResult to keep track of partial
1170 * results. See Tcl_AppendResult code for details.
1171 */
1172
1173 char *appendResult; /* Storage space for results generated
1174 * by Tcl_AppendResult. Malloc-ed. NULL
1175 * means not yet allocated. */
1176 int appendAvl; /* Total amount of space available at
1177 * partialResult. */
1178 int appendUsed; /* Number of non-null bytes currently
1179 * stored at partialResult. */
1180
1181 /*
1182 * Information about packages. Used only in tclPkg.c.
1183 */
1184
1185 Tcl_HashTable packageTable; /* Describes all of the packages loaded
1186 * in or available to this interpreter.
1187 * Keys are package names, values are
1188 * (Package *) pointers. */
1189 char *packageUnknown; /* Command to invoke during "package
1190 * require" commands for packages that
1191 * aren't described in packageTable.
1192 * Malloc'ed, may be NULL. */
1193
1194 /*
1195 * Miscellaneous information:
1196 */
1197
1198 int cmdCount; /* Total number of times a command procedure
1199 * has been called for this interpreter. */
1200 int evalFlags; /* Flags to control next call to Tcl_Eval.
1201 * Normally zero, but may be set before
1202 * calling Tcl_Eval. See below for valid
1203 * values. */
1204 int termOffset; /* Offset of character just after last one
1205 * compiled or executed by Tcl_EvalObj. */
1206 LiteralTable literalTable; /* Contains LiteralEntry's describing all
1207 * Tcl objects holding literals of scripts
1208 * compiled by the interpreter. Indexed by
1209 * the string representations of literals.
1210 * Used to avoid creating duplicate
1211 * objects. */
1212 int compileEpoch; /* Holds the current "compilation epoch"
1213 * for this interpreter. This is
1214 * incremented to invalidate existing
1215 * ByteCodes when, e.g., a command with a
1216 * compile procedure is redefined. */
1217 Proc *compiledProcPtr; /* If a procedure is being compiled, a
1218 * pointer to its Proc structure; otherwise,
1219 * this is NULL. Set by ObjInterpProc in
1220 * tclProc.c and used by tclCompile.c to
1221 * process local variables appropriately. */
1222 ResolverScheme *resolverPtr;
1223 /* Linked list of name resolution schemes
1224 * added to this interpreter. Schemes
1225 * are added/removed by calling
1226 * Tcl_AddInterpResolvers and
1227 * Tcl_RemoveInterpResolver. */
1228 char *scriptFile; /* NULL means there is no nested source
1229 * command active; otherwise this points to
1230 * the name of the file being sourced (it's
1231 * not malloc-ed: it points to an argument
1232 * to Tcl_EvalFile. */
1233 int flags; /* Various flag bits. See below. */
1234 long randSeed; /* Seed used for rand() function. */
1235 Trace *tracePtr; /* List of traces for this interpreter. */
1236 Tcl_HashTable *assocData; /* Hash table for associating data with
1237 * this interpreter. Cleaned up when
1238 * this interpreter is deleted. */
1239 struct ExecEnv *execEnvPtr; /* Execution environment for Tcl bytecode
1240 * execution. Contains a pointer to the
1241 * Tcl evaluation stack. */
1242 Tcl_Obj *emptyObjPtr; /* Points to an object holding an empty
1243 * string. Returned by Tcl_ObjSetVar2 when
1244 * variable traces change a variable in a
1245 * gross way. */
1246 char resultSpace[TCL_RESULT_SIZE+1];
1247 /* Static space holding small results. */
1248 Tcl_Obj *objResultPtr; /* If the last command returned an object
1249 * result, this points to it. Should not be
1250 * accessed directly; see comment above. */
1251 Tcl_ThreadId threadId; /* ID of thread that owns the interpreter */
1252
1253 /*
1254 * Statistical information about the bytecode compiler and interpreter's
1255 * operation.
1256 */
1257
1258 #ifdef TCL_COMPILE_STATS
1259 ByteCodeStats stats; /* Holds compilation and execution
1260 * statistics for this interpreter. */
1261 #endif /* TCL_COMPILE_STATS */
1262 } Interp;
1263
1264 /*
1265 * EvalFlag bits for Interp structures:
1266 *
1267 * TCL_BRACKET_TERM 1 means that the current script is terminated by
1268 * a close bracket rather than the end of the string.
1269 * TCL_ALLOW_EXCEPTIONS 1 means it's OK for the script to terminate with
1270 * a code other than TCL_OK or TCL_ERROR; 0 means
1271 * codes other than these should be turned into errors.
1272 */
1273
1274 #define TCL_BRACKET_TERM 1
1275 #define TCL_ALLOW_EXCEPTIONS 4
1276
1277 /*
1278 * Flag bits for Interp structures:
1279 *
1280 * DELETED: Non-zero means the interpreter has been deleted:
1281 * don't process any more commands for it, and destroy
1282 * the structure as soon as all nested invocations of
1283 * Tcl_Eval are done.
1284 * ERR_IN_PROGRESS: Non-zero means an error unwind is already in
1285 * progress. Zero means a command proc has been
1286 * invoked since last error occured.
1287 * ERR_ALREADY_LOGGED: Non-zero means information has already been logged
1288 * in $errorInfo for the current Tcl_Eval instance,
1289 * so Tcl_Eval needn't log it (used to implement the
1290 * "error message log" command).
1291 * ERROR_CODE_SET: Non-zero means that Tcl_SetErrorCode has been
1292 * called to record information for the current
1293 * error. Zero means Tcl_Eval must clear the
1294 * errorCode variable if an error is returned.
1295 * EXPR_INITIALIZED: Non-zero means initialization specific to
1296 * expressions has been carried out.
1297 * DONT_COMPILE_CMDS_INLINE: Non-zero means that the bytecode compiler
1298 * should not compile any commands into an inline
1299 * sequence of instructions. This is set 1, for
1300 * example, when command traces are requested.
1301 * RAND_SEED_INITIALIZED: Non-zero means that the randSeed value of the
1302 * interp has not be initialized. This is set 1
1303 * when we first use the rand() or srand() functions.
1304 * SAFE_INTERP: Non zero means that the current interp is a
1305 * safe interp (ie it has only the safe commands
1306 * installed, less priviledge than a regular interp).
1307 * USE_EVAL_DIRECT: Non-zero means don't use the compiler or byte-code
1308 * interpreter; instead, have Tcl_EvalObj call
1309 * Tcl_EvalEx. Used primarily for testing the
1310 * new parser.
1311 */
1312
1313 #define DELETED 1
1314 #define ERR_IN_PROGRESS 2
1315 #define ERR_ALREADY_LOGGED 4
1316 #define ERROR_CODE_SET 8
1317 #define EXPR_INITIALIZED 0x10
1318 #define DONT_COMPILE_CMDS_INLINE 0x20
1319 #define RAND_SEED_INITIALIZED 0x40
1320 #define SAFE_INTERP 0x80
1321 #define USE_EVAL_DIRECT 0x100
1322
1323 /*
1324 *----------------------------------------------------------------
1325 * Data structures related to command parsing. These are used in
1326 * tclParse.c and its clients.
1327 *----------------------------------------------------------------
1328 */
1329
1330 /*
1331 * The following data structure is used by various parsing procedures
1332 * to hold information about where to store the results of parsing
1333 * (e.g. the substituted contents of a quoted argument, or the result
1334 * of a nested command). At any given time, the space available
1335 * for output is fixed, but a procedure may be called to expand the
1336 * space available if the current space runs out.
1337 */
1338
1339 typedef struct ParseValue {
1340 char *buffer; /* Address of first character in
1341 * output buffer. */
1342 char *next; /* Place to store next character in
1343 * output buffer. */
1344 char *end; /* Address of the last usable character
1345 * in the buffer. */
1346 void (*expandProc) _ANSI_ARGS_((struct ParseValue *pvPtr, int needed));
1347 /* Procedure to call when space runs out;
1348 * it will make more space. */
1349 ClientData clientData; /* Arbitrary information for use of
1350 * expandProc. */
1351 } ParseValue;
1352
1353
1354 /*
1355 * Maximum number of levels of nesting permitted in Tcl commands (used
1356 * to catch infinite recursion).
1357 */
1358
1359 #define MAX_NESTING_DEPTH 1000
1360
1361 /*
1362 * The macro below is used to modify a "char" value (e.g. by casting
1363 * it to an unsigned character) so that it can be used safely with
1364 * macros such as isspace.
1365 */
1366
1367 #define UCHAR(c) ((unsigned char) (c))
1368
1369 /*
1370 * This macro is used to determine the offset needed to safely allocate any
1371 * data structure in memory. Given a starting offset or size, it "rounds up"
1372 * or "aligns" the offset to the next 8-byte boundary so that any data
1373 * structure can be placed at the resulting offset without fear of an
1374 * alignment error.
1375 *
1376 * WARNING!! DO NOT USE THIS MACRO TO ALIGN POINTERS: it will produce
1377 * the wrong result on platforms that allocate addresses that are divisible
1378 * by 4 or 2. Only use it for offsets or sizes.
1379 */
1380
1381 #define TCL_ALIGN(x) (((int)(x) + 7) & ~7)
1382
1383 /*
1384 * The following macros are used to specify the runtime platform
1385 * setting of the tclPlatform variable.
1386 */
1387
1388 typedef enum {
1389 TCL_PLATFORM_UNIX, /* Any Unix-like OS. */
1390 TCL_PLATFORM_MAC, /* MacOS. */
1391 TCL_PLATFORM_WINDOWS /* Any Microsoft Windows OS. */
1392 } TclPlatformType;
1393
1394 /*
1395 * Flags for TclInvoke:
1396 *
1397 * TCL_INVOKE_HIDDEN Invoke a hidden command; if not set,
1398 * invokes an exposed command.
1399 * TCL_INVOKE_NO_UNKNOWN If set, "unknown" is not invoked if
1400 * the command to be invoked is not found.
1401 * Only has an effect if invoking an exposed
1402 * command, i.e. if TCL_INVOKE_HIDDEN is not
1403 * also set.
1404 * TCL_INVOKE_NO_TRACEBACK Does not record traceback information if
1405 * the invoked command returns an error. Used
1406 * if the caller plans on recording its own
1407 * traceback information.
1408 */
1409
1410 #define TCL_INVOKE_HIDDEN (1<<0)
1411 #define TCL_INVOKE_NO_UNKNOWN (1<<1)
1412 #define TCL_INVOKE_NO_TRACEBACK (1<<2)
1413
1414 /*
1415 * The structure used as the internal representation of Tcl list
1416 * objects. This is an array of pointers to the element objects. This array
1417 * is grown (reallocated and copied) as necessary to hold all the list's
1418 * element pointers. The array might contain more slots than currently used
1419 * to hold all element pointers. This is done to make append operations
1420 * faster.
1421 */
1422
1423 typedef struct List {
1424 int maxElemCount; /* Total number of element array slots. */
1425 int elemCount; /* Current number of list elements. */
1426 Tcl_Obj **elements; /* Array of pointers to element objects. */
1427 } List;
1428
1429
1430 /*
1431 * The following types are used for getting and storing platform-specific
1432 * file attributes in tclFCmd.c and the various platform-versions of
1433 * that file. This is done to have as much common code as possible
1434 * in the file attributes code. For more information about the callbacks,
1435 * see TclFileAttrsCmd in tclFCmd.c.
1436 */
1437
1438 typedef int (TclGetFileAttrProc) _ANSI_ARGS_((Tcl_Interp *interp,
1439 int objIndex, CONST char *fileName, Tcl_Obj **attrObjPtrPtr));
1440 typedef int (TclSetFileAttrProc) _ANSI_ARGS_((Tcl_Interp *interp,
1441 int objIndex, CONST char *fileName, Tcl_Obj *attrObjPtr));
1442
1443 typedef struct TclFileAttrProcs {
1444 TclGetFileAttrProc *getProc; /* The procedure for getting attrs. */
1445 TclSetFileAttrProc *setProc; /* The procedure for setting attrs. */
1446 } TclFileAttrProcs;
1447
1448 /*
1449 * Opaque handle used in pipeline routines to encapsulate platform-dependent
1450 * state.
1451 */
1452
1453 typedef struct TclFile_ *TclFile;
1454
1455 /*
1456 *----------------------------------------------------------------
1457 * Data structures related to hooking 'TclStat(...)' and
1458 * 'TclAccess(...)'.
1459 *----------------------------------------------------------------
1460 */
1461
1462 typedef int (TclStatProc_) _ANSI_ARGS_((CONST char *path, struct stat *buf));
1463 typedef int (TclAccessProc_) _ANSI_ARGS_((CONST char *path, int mode));
1464 typedef Tcl_Channel (TclOpenFileChannelProc_) _ANSI_ARGS_((Tcl_Interp *interp,
1465 char *fileName, char *modeString,
1466 int permissions));
1467
1468 typedef int (*TclCmdProcType) _ANSI_ARGS_((ClientData clientData,
1469 Tcl_Interp *interp, int argc, char *argv[]));
1470 typedef int (*TclObjCmdProcType) _ANSI_ARGS_((ClientData clientData,
1471 Tcl_Interp *interp, int objc, struct Tcl_Obj * CONST objv[]));
1472
1473 /*
1474 * Opaque names for platform specific types.
1475 */
1476
1477 typedef struct TclpTime_t_ *TclpTime_t;
1478
1479 /*
1480 * The following structure is used to pass glob type data amongst
1481 * the various glob routines and TclpMatchFilesTypes. Currently
1482 * most of the fields are ignored. However they will be used in
1483 * a future release to implement glob's ability to find files
1484 * of particular types/permissions/etc only.
1485 */
1486 typedef struct GlobTypeData {
1487 /* Corresponds to bcdpfls as in 'find -t' */
1488 int type;
1489 /* Corresponds to file permissions */
1490 int perm;
1491 /* Acceptable mac type */
1492 Tcl_Obj* macType;
1493 /* Acceptable mac creator */
1494 Tcl_Obj* macCreator;
1495 } GlobTypeData;
1496
1497 /*
1498 * type and permission definitions for glob command
1499 */
1500 #define TCL_GLOB_TYPE_BLOCK (1<<0)
1501 #define TCL_GLOB_TYPE_CHAR (1<<1)
1502 #define TCL_GLOB_TYPE_DIR (1<<2)
1503 #define TCL_GLOB_TYPE_PIPE (1<<3)
1504 #define TCL_GLOB_TYPE_FILE (1<<4)
1505 #define TCL_GLOB_TYPE_LINK (1<<5)
1506 #define TCL_GLOB_TYPE_SOCK (1<<6)
1507
1508 #define TCL_GLOB_PERM_RONLY (1<<0)
1509 #define TCL_GLOB_PERM_HIDDEN (1<<1)
1510 #define TCL_GLOB_PERM_R (1<<2)
1511 #define TCL_GLOB_PERM_W (1<<3)
1512 #define TCL_GLOB_PERM_X (1<<4)
1513
1514 /*
1515 *----------------------------------------------------------------
1516 * Variables shared among Tcl modules but not used by the outside world.
1517 *----------------------------------------------------------------
1518 */
1519
1520 extern Tcl_Time tclBlockTime;
1521 extern int tclBlockTimeSet;
1522 extern char * tclExecutableName;
1523 extern char * tclNativeExecutableName;
1524 extern char * tclDefaultEncodingDir;
1525 extern Tcl_ChannelType tclFileChannelType;
1526 extern char * tclMemDumpFileName;
1527 extern TclPlatformType tclPlatform;
1528 extern char * tclpFileAttrStrings[];
1529 extern CONST TclFileAttrProcs tclpFileAttrProcs[];
1530
1531 /*
1532 * Variables denoting the Tcl object types defined in the core.
1533 */
1534
1535 extern Tcl_ObjType tclBooleanType;
1536 extern Tcl_ObjType tclByteArrayType;
1537 extern Tcl_ObjType tclByteCodeType;
1538 extern Tcl_ObjType tclDoubleType;
1539 extern Tcl_ObjType tclIntType;
1540 extern Tcl_ObjType tclListType;
1541 extern Tcl_ObjType tclProcBodyType;
1542 extern Tcl_ObjType tclStringType;
1543
1544 /*
1545 * The head of the list of free Tcl objects, and the total number of Tcl
1546 * objects ever allocated and freed.
1547 */
1548
1549 extern Tcl_Obj * tclFreeObjList;
1550
1551 #ifdef TCL_COMPILE_STATS
1552 extern long tclObjsAlloced;
1553 extern long tclObjsFreed;
1554 #endif /* TCL_COMPILE_STATS */
1555
1556 /*
1557 * Pointer to a heap-allocated string of length zero that the Tcl core uses
1558 * as the value of an empty string representation for an object. This value
1559 * is shared by all new objects allocated by Tcl_NewObj.
1560 */
1561
1562 extern char * tclEmptyStringRep;
1563
1564 /*
1565 *----------------------------------------------------------------
1566 * Procedures shared among Tcl modules but not used by the outside
1567 * world:
1568 *----------------------------------------------------------------
1569 */
1570
1571 EXTERN int TclAccess _ANSI_ARGS_((CONST char *path,
1572 int mode));
1573 EXTERN int TclAccessDeleteProc _ANSI_ARGS_((TclAccessProc_ *proc));
1574 EXTERN int TclAccessInsertProc _ANSI_ARGS_((TclAccessProc_ *proc));
1575 EXTERN void TclAllocateFreeObjects _ANSI_ARGS_((void));
1576 EXTERN int TclArraySet _ANSI_ARGS_((Tcl_Interp *interp,
1577 Tcl_Obj *arrayNameObj, Tcl_Obj *arrayElemObj));
1578 EXTERN int TclCheckBadOctal _ANSI_ARGS_((Tcl_Interp *interp,
1579 char *value));
1580 EXTERN int TclCleanupChildren _ANSI_ARGS_((Tcl_Interp *interp,
1581 int numPids, Tcl_Pid *pidPtr,
1582 Tcl_Channel errorChan));
1583 EXTERN void TclCleanupCommand _ANSI_ARGS_((Command *cmdPtr));
1584 EXTERN int TclCopyChannel _ANSI_ARGS_((Tcl_Interp *interp,
1585 Tcl_Channel inChan, Tcl_Channel outChan,
1586 int toRead, Tcl_Obj *cmdPtr));
1587 /*
1588 * TclCreatePipeline unofficially exported for use by BLT.
1589 */
1590 EXTERN int TclCreatePipeline _ANSI_ARGS_((Tcl_Interp *interp,
1591 int argc, char **argv, Tcl_Pid **pidArrayPtr,
1592 TclFile *inPipePtr, TclFile *outPipePtr,
1593 TclFile *errFilePtr));
1594 EXTERN int TclCreateProc _ANSI_ARGS_((Tcl_Interp *interp,
1595 Namespace *nsPtr, char *procName,
1596 Tcl_Obj *argsPtr, Tcl_Obj *bodyPtr,
1597 Proc **procPtrPtr));
1598 EXTERN void TclDeleteCompiledLocalVars _ANSI_ARGS_((
1599 Interp *iPtr, CallFrame *framePtr));
1600 EXTERN void TclDeleteVars _ANSI_ARGS_((Interp *iPtr,
1601 Tcl_HashTable *tablePtr));
1602 EXTERN int TclDoGlob _ANSI_ARGS_((Tcl_Interp *interp,
1603 char *separators, Tcl_DString *headPtr,
1604 char *tail, GlobTypeData *types));
1605 EXTERN void TclDumpMemoryInfo _ANSI_ARGS_((FILE *outFile));
1606 EXTERN void TclExpandTokenArray _ANSI_ARGS_((
1607 Tcl_Parse *parsePtr));
1608 EXTERN void TclExprFloatError _ANSI_ARGS_((Tcl_Interp *interp,
1609 double value));
1610 EXTERN int TclFileAttrsCmd _ANSI_ARGS_((Tcl_Interp *interp,
1611 int objc, Tcl_Obj *CONST objv[]));
1612 EXTERN int TclFileCopyCmd _ANSI_ARGS_((Tcl_Interp *interp,
1613 int argc, char **argv)) ;
1614 EXTERN int TclFileDeleteCmd _ANSI_ARGS_((Tcl_Interp *interp,
1615 int argc, char **argv));
1616 EXTERN int TclFileMakeDirsCmd _ANSI_ARGS_((Tcl_Interp *interp,
1617 int argc, char **argv)) ;
1618 EXTERN int TclFileRenameCmd _ANSI_ARGS_((Tcl_Interp *interp,
1619 int argc, char **argv)) ;
1620 EXTERN void TclFinalizeAllocSubsystem _ANSI_ARGS_((void));
1621 EXTERN void TclFinalizeCompExecEnv _ANSI_ARGS_((void));
1622 EXTERN void TclFinalizeCompilation _ANSI_ARGS_((void));
1623 EXTERN void TclFinalizeEncodingSubsystem _ANSI_ARGS_((void));
1624 EXTERN void TclFinalizeEnvironment _ANSI_ARGS_((void));
1625 EXTERN void TclFinalizeExecution _ANSI_ARGS_((void));
1626 EXTERN void TclFinalizeIOSubsystem _ANSI_ARGS_((void));
1627 EXTERN void TclFinalizeLoad _ANSI_ARGS_((void));
1628 EXTERN void TclFinalizeMemorySubsystem _ANSI_ARGS_((void));
1629 EXTERN void TclFinalizeNotifier _ANSI_ARGS_((void));
1630 EXTERN void TclFinalizeSynchronization _ANSI_ARGS_((void));
1631 EXTERN void TclFinalizeThreadData _ANSI_ARGS_((void));
1632 EXTERN void TclFindEncodings _ANSI_ARGS_((CONST char *argv0));
1633 EXTERN Proc * TclFindProc _ANSI_ARGS_((Interp *iPtr,
1634 char *procName));
1635 EXTERN int TclFormatInt _ANSI_ARGS_((char *buffer, long n));
1636 EXTERN void TclFreePackageInfo _ANSI_ARGS_((Interp *iPtr));
1637 EXTERN int TclGetDate _ANSI_ARGS_((char *p,
1638 unsigned long now, long zone,
1639 unsigned long *timePtr));
1640 EXTERN Tcl_Obj * TclGetElementOfIndexedArray _ANSI_ARGS_((
1641 Tcl_Interp *interp, int localIndex,
1642 Tcl_Obj *elemPtr, int leaveErrorMsg));
1643 EXTERN char * TclGetExtension _ANSI_ARGS_((char *name));
1644 EXTERN int TclGetFrame _ANSI_ARGS_((Tcl_Interp *interp,
1645 char *string, CallFrame **framePtrPtr));
1646 EXTERN TclCmdProcType TclGetInterpProc _ANSI_ARGS_((void));
1647 EXTERN int TclGetIntForIndex _ANSI_ARGS_((Tcl_Interp *interp,
1648 Tcl_Obj *objPtr, int endValue, int *indexPtr));
1649 EXTERN Tcl_Obj * TclGetIndexedScalar _ANSI_ARGS_((Tcl_Interp *interp,
1650 int localIndex, int leaveErrorMsg));
1651 EXTERN int TclGetLong _ANSI_ARGS_((Tcl_Interp *interp,
1652 char *string, long *longPtr));
1653 EXTERN int TclGetLoadedPackages _ANSI_ARGS_((
1654 Tcl_Interp *interp, char *targetName));
1655 EXTERN int TclGetNamespaceForQualName _ANSI_ARGS_((
1656 Tcl_Interp *interp, char *qualName,
1657 Namespace *cxtNsPtr, int flags,
1658 Namespace **nsPtrPtr, Namespace **altNsPtrPtr,
1659 Namespace **actualCxtPtrPtr,
1660 char **simpleNamePtr));
1661 EXTERN TclObjCmdProcType TclGetObjInterpProc _ANSI_ARGS_((void));
1662 EXTERN int TclGetOpenMode _ANSI_ARGS_((Tcl_Interp *interp,
1663 char *string, int *seekFlagPtr));
1664 EXTERN Tcl_Command TclGetOriginalCommand _ANSI_ARGS_((
1665 Tcl_Command command));
1666 EXTERN int TclGlob _ANSI_ARGS_((Tcl_Interp *interp,
1667 char *pattern, char *unquotedPrefix,
1668 int globFlags, GlobTypeData* types));
1669 EXTERN int TclGlobalInvoke _ANSI_ARGS_((Tcl_Interp *interp,
1670 int argc, char **argv, int flags));
1671 EXTERN int TclGuessPackageName _ANSI_ARGS_((char *fileName,
1672 Tcl_DString *bufPtr));
1673 EXTERN int TclHideUnsafeCommands _ANSI_ARGS_((
1674 Tcl_Interp *interp));
1675 EXTERN int TclInExit _ANSI_ARGS_((void));
1676 EXTERN Tcl_Obj * TclIncrElementOfIndexedArray _ANSI_ARGS_((
1677 Tcl_Interp *interp, int localIndex,
1678 Tcl_Obj *elemPtr, long incrAmount));
1679 EXTERN Tcl_Obj * TclIncrIndexedScalar _ANSI_ARGS_((
1680 Tcl_Interp *interp, int localIndex,
1681 long incrAmount));
1682 EXTERN Tcl_Obj * TclIncrVar2 _ANSI_ARGS_((Tcl_Interp *interp,
1683 Tcl_Obj *part1Ptr, Tcl_Obj *part2Ptr,
1684 long incrAmount, int flags));
1685 EXTERN void TclInitAlloc _ANSI_ARGS_((void));
1686 EXTERN void TclInitCompiledLocals _ANSI_ARGS_((
1687 Tcl_Interp *interp, CallFrame *framePtr,
1688 Namespace *nsPtr));
1689 EXTERN void TclInitDbCkalloc _ANSI_ARGS_((void));
1690 EXTERN void TclInitEncodingSubsystem _ANSI_ARGS_((void));
1691 EXTERN void TclInitIOSubsystem _ANSI_ARGS_((void));
1692 EXTERN void TclInitNamespaceSubsystem _ANSI_ARGS_((void));
1693 EXTERN void TclInitNotifier _ANSI_ARGS_((void));
1694 EXTERN void TclInitObjSubsystem _ANSI_ARGS_((void));
1695 EXTERN void TclInitSubsystems _ANSI_ARGS_((CONST char *argv0));
1696 EXTERN int TclInvoke _ANSI_ARGS_((Tcl_Interp *interp,
1697 int argc, char **argv, int flags));
1698 EXTERN int TclInvokeObjectCommand _ANSI_ARGS_((
1699 ClientData clientData, Tcl_Interp *interp,
1700 int argc, char **argv));
1701 EXTERN int TclInvokeStringCommand _ANSI_ARGS_((
1702 ClientData clientData, Tcl_Interp *interp,
1703 int objc, Tcl_Obj *CONST objv[]));
1704 EXTERN int TclIsLocalScalar _ANSI_ARGS_((CONST char *src,
1705 int len));
1706 EXTERN Proc * TclIsProc _ANSI_ARGS_((Command *cmdPtr));
1707 EXTERN Var * TclLookupVar _ANSI_ARGS_((Tcl_Interp *interp,
1708 char *part1, char *part2, int flags, char *msg,
1709 int createPart1, int createPart2,
1710 Var **arrayPtrPtr));
1711 EXTERN int TclMathInProgress _ANSI_ARGS_((void));
1712 EXTERN int TclNeedSpace _ANSI_ARGS_((char *start, char *end));
1713 EXTERN Tcl_Obj * TclNewProcBodyObj _ANSI_ARGS_((Proc *procPtr));
1714 EXTERN int TclObjCommandComplete _ANSI_ARGS_((Tcl_Obj *cmdPtr));
1715 EXTERN int TclObjInterpProc _ANSI_ARGS_((ClientData clientData,
1716 Tcl_Interp *interp, int objc,
1717 Tcl_Obj *CONST objv[]));
1718 EXTERN int TclObjInvoke _ANSI_ARGS_((Tcl_Interp *interp,
1719 int objc, Tcl_Obj *CONST objv[], int flags));
1720 EXTERN int TclObjInvokeGlobal _ANSI_ARGS_((Tcl_Interp *interp,
1721 int objc, Tcl_Obj *CONST objv[], int flags));
1722 EXTERN int TclOpenFileChannelDeleteProc _ANSI_ARGS_((
1723 TclOpenFileChannelProc_ *proc));
1724 EXTERN int TclOpenFileChannelInsertProc _ANSI_ARGS_((
1725 TclOpenFileChannelProc_ *proc));
1726 EXTERN int TclpAccess _ANSI_ARGS_((CONST char *filename,
1727 int mode));
1728 EXTERN char * TclpAlloc _ANSI_ARGS_((unsigned int size));
1729 EXTERN int TclpCheckStackSpace _ANSI_ARGS_((void));
1730 EXTERN int TclpCopyFile _ANSI_ARGS_((CONST char *source,
1731 CONST char *dest));
1732 EXTERN int TclpCopyDirectory _ANSI_ARGS_((CONST char *source,
1733 CONST char *dest, Tcl_DString *errorPtr));
1734 EXTERN int TclpCreateDirectory _ANSI_ARGS_((CONST char *path));
1735 EXTERN int TclpDeleteFile _ANSI_ARGS_((CONST char *path));
1736 EXTERN void TclpExit _ANSI_ARGS_((int status));
1737 EXTERN void TclpFinalizeCondition _ANSI_ARGS_((
1738 Tcl_Condition *condPtr));
1739 EXTERN void TclpFinalizeMutex _ANSI_ARGS_((Tcl_Mutex *mutexPtr));
1740 EXTERN void TclpFinalizeThreadData _ANSI_ARGS_((
1741 Tcl_ThreadDataKey *keyPtr));
1742 EXTERN void TclpFinalizeThreadDataKey _ANSI_ARGS_((
1743 Tcl_ThreadDataKey *keyPtr));
1744 EXTERN char * TclpFindExecutable _ANSI_ARGS_((
1745 CONST char *argv0));
1746 EXTERN int TclpFindVariable _ANSI_ARGS_((CONST char *name,
1747 int *lengthPtr));
1748 EXTERN void TclpFree _ANSI_ARGS_((char *ptr));
1749 EXTERN unsigned long TclpGetClicks _ANSI_ARGS_((void));
1750 EXTERN Tcl_Channel TclpGetDefaultStdChannel _ANSI_ARGS_((int type));
1751 EXTERN unsigned long TclpGetSeconds _ANSI_ARGS_((void));
1752 EXTERN void TclpGetTime _ANSI_ARGS_((Tcl_Time *time));
1753 EXTERN int TclpGetTimeZone _ANSI_ARGS_((unsigned long time));
1754 EXTERN char * TclpGetUserHome _ANSI_ARGS_((CONST char *name,
1755 Tcl_DString *bufferPtr));
1756 EXTERN int TclpHasSockets _ANSI_ARGS_((Tcl_Interp *interp));
1757 EXTERN void TclpInitLibraryPath _ANSI_ARGS_((CONST char *argv0));
1758 EXTERN void TclpInitLock _ANSI_ARGS_((void));
1759 EXTERN void TclpInitPlatform _ANSI_ARGS_((void));
1760 EXTERN void TclpInitUnlock _ANSI_ARGS_((void));
1761 EXTERN int TclpListVolumes _ANSI_ARGS_((Tcl_Interp *interp));
1762 EXTERN void TclpMasterLock _ANSI_ARGS_((void));
1763 EXTERN void TclpMasterUnlock _ANSI_ARGS_((void));
1764 EXTERN int TclpMatchFiles _ANSI_ARGS_((Tcl_Interp *interp,
1765 char *separators, Tcl_DString *dirPtr,
1766 char *pattern, char *tail));
1767 EXTERN Tcl_Channel TclpOpenFileChannel _ANSI_ARGS_((Tcl_Interp *interp,
1768 char *fileName, char *modeString,
1769 int permissions));
1770 EXTERN char * TclpReadlink _ANSI_ARGS_((CONST char *fileName,
1771 Tcl_DString *linkPtr));
1772 EXTERN char * TclpRealloc _ANSI_ARGS_((char *ptr,
1773 unsigned int size));
1774 EXTERN void TclpReleaseFile _ANSI_ARGS_((TclFile file));
1775 EXTERN int TclpRemoveDirectory _ANSI_ARGS_((CONST char *path,
1776 int recursive, Tcl_DString *errorPtr));
1777 EXTERN int TclpRenameFile _ANSI_ARGS_((CONST char *source,
1778 CONST char *dest));
1779 EXTERN void TclpSetInitialEncodings _ANSI_ARGS_((void));
1780 EXTERN void TclpSetVariables _ANSI_ARGS_((Tcl_Interp *interp));
1781 EXTERN VOID * TclpSysAlloc _ANSI_ARGS_((long size, int isBin));
1782 EXTERN void TclpSysFree _ANSI_ARGS_((VOID *ptr));
1783 EXTERN VOID * TclpSysRealloc _ANSI_ARGS_((VOID *cp,
1784 unsigned int size));
1785 EXTERN void TclpUnloadFile _ANSI_ARGS_((ClientData clientData));
1786 EXTERN char * TclPrecTraceProc _ANSI_ARGS_((ClientData clientData,
1787 Tcl_Interp *interp, char *name1, char *name2,
1788 int flags));
1789 EXTERN int TclPreventAliasLoop _ANSI_ARGS_((Tcl_Interp *interp,
1790 Tcl_Interp *cmdInterp, Tcl_Command cmd));
1791 EXTERN void TclProcCleanupProc _ANSI_ARGS_((Proc *procPtr));
1792 EXTERN int TclProcCompileProc _ANSI_ARGS_((Tcl_Interp *interp,
1793 Proc *procPtr, Tcl_Obj *bodyPtr, Namespace *nsPtr,
1794 CONST char *description, CONST char *procName));
1795 EXTERN void TclProcDeleteProc _ANSI_ARGS_((ClientData clientData));
1796 EXTERN int TclProcInterpProc _ANSI_ARGS_((ClientData clientData,
1797 Tcl_Interp *interp, int argc, char **argv));
1798 EXTERN VOID * TclpThreadDataKeyGet _ANSI_ARGS_((
1799 Tcl_ThreadDataKey *keyPtr));
1800 EXTERN void TclpThreadDataKeyInit _ANSI_ARGS_((
1801 Tcl_ThreadDataKey *keyPtr));
1802 EXTERN void TclpThreadDataKeySet _ANSI_ARGS_((
1803 Tcl_ThreadDataKey *keyPtr, VOID *data));
1804 EXTERN void TclpThreadExit _ANSI_ARGS_((int status));
1805 EXTERN void TclRememberCondition _ANSI_ARGS_((Tcl_Condition *mutex));
1806 EXTERN void TclRememberDataKey _ANSI_ARGS_((Tcl_ThreadDataKey *mutex));
1807 EXTERN void TclRememberMutex _ANSI_ARGS_((Tcl_Mutex *mutex));
1808 EXTERN int TclRenameCommand _ANSI_ARGS_((Tcl_Interp *interp,
1809 char *oldName, char *newName)) ;
1810 EXTERN void TclResetShadowedCmdRefs _ANSI_ARGS_((
1811 Tcl_Interp *interp, Command *newCmdPtr));
1812 EXTERN int TclServiceIdle _ANSI_ARGS_((void));
1813 EXTERN Tcl_Obj * TclSetElementOfIndexedArray _ANSI_ARGS_((
1814 Tcl_Interp *interp, int localIndex,
1815 Tcl_Obj *elemPtr, Tcl_Obj *objPtr,
1816 int leaveErrorMsg));
1817 EXTERN Tcl_Obj * TclSetIndexedScalar _ANSI_ARGS_((Tcl_Interp *interp,
1818 int localIndex, Tcl_Obj *objPtr,
1819 int leaveErrorMsg));
1820 EXTERN char * TclSetPreInitScript _ANSI_ARGS_((char *string));
1821 EXTERN void TclSetupEnv _ANSI_ARGS_((Tcl_Interp *interp));
1822 EXTERN int TclSockGetPort _ANSI_ARGS_((Tcl_Interp *interp,
1823 char *string, char *proto, int *portPtr));
1824 EXTERN int TclSockMinimumBuffers _ANSI_ARGS_((int sock,
1825 int size));
1826 EXTERN int TclStat _ANSI_ARGS_((CONST char *path,
1827 struct stat *buf));
1828 EXTERN int TclStatDeleteProc _ANSI_ARGS_((TclStatProc_ *proc));
1829 EXTERN int TclStatInsertProc _ANSI_ARGS_((TclStatProc_ *proc));
1830 EXTERN void TclTeardownNamespace _ANSI_ARGS_((Namespace *nsPtr));
1831 EXTERN void TclTransferResult _ANSI_ARGS_((Tcl_Interp *sourceInterp,
1832 int result, Tcl_Interp *targetInterp));
1833 EXTERN int TclUpdateReturnInfo _ANSI_ARGS_((Interp *iPtr));
1834
1835 /*
1836 *----------------------------------------------------------------
1837 * Command procedures in the generic core:
1838 *----------------------------------------------------------------
1839 */
1840
1841 EXTERN int Tcl_AfterObjCmd _ANSI_ARGS_((ClientData clientData,
1842 Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[]));
1843 EXTERN int Tcl_AppendObjCmd _ANSI_ARGS_((ClientData clientData,
1844 Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[]));
1845 EXTERN int Tcl_ArrayObjCmd _ANSI_ARGS_((ClientData clientData,
1846 Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[]));
1847 EXTERN int Tcl_BinaryObjCmd _ANSI_ARGS_((ClientData clientData,
1848 Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[]));
1849 EXTERN int Tcl_BreakObjCmd _ANSI_ARGS_((ClientData clientData,
1850 Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[]));
1851 EXTERN int Tcl_CaseObjCmd _ANSI_ARGS_((ClientData clientData,
1852 Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[]));
1853 EXTERN int Tcl_CatchObjCmd _ANSI_ARGS_((ClientData clientData,
1854 Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[]));
1855 EXTERN int Tcl_CdObjCmd _ANSI_ARGS_((ClientData clientData,
1856 Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[]));
1857 EXTERN int Tcl_ClockObjCmd _ANSI_ARGS_((ClientData clientData,
1858 Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[]));
1859 EXTERN int Tcl_CloseObjCmd _ANSI_ARGS_((ClientData clientData,
1860 Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[]));
1861 EXTERN int Tcl_ConcatObjCmd _ANSI_ARGS_((ClientData clientData,
1862 Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[]));
1863 EXTERN int Tcl_ContinueObjCmd _ANSI_ARGS_((ClientData clientData,
1864 Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[]));
1865 EXTERN int Tcl_EncodingObjCmd _ANSI_ARGS_((ClientData clientData,
1866 Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[]));
1867 EXTERN int Tcl_EofObjCmd _ANSI_ARGS_((ClientData clientData,
1868 Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[]));
1869 EXTERN int Tcl_ErrorObjCmd _ANSI_ARGS_((ClientData clientData,
1870 Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[]));
1871 EXTERN int Tcl_EvalObjCmd _ANSI_ARGS_((ClientData clientData,
1872 Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[]));
1873 EXTERN int Tcl_ExecObjCmd _ANSI_ARGS_((ClientData clientData,
1874 Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[]));
1875 EXTERN int Tcl_ExitObjCmd _ANSI_ARGS_((ClientData clientData,
1876 Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[]));
1877 EXTERN int Tcl_ExprObjCmd _ANSI_ARGS_((ClientData clientData,
1878 Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[]));
1879 EXTERN int Tcl_FblockedObjCmd _ANSI_ARGS_((ClientData clientData,
1880 Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[]));
1881 EXTERN int Tcl_FconfigureObjCmd _ANSI_ARGS_((ClientData clientData,
1882 Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[]));
1883 EXTERN int Tcl_FcopyObjCmd _ANSI_ARGS_((ClientData dummy,
1884 Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[]));
1885 EXTERN int Tcl_FileObjCmd _ANSI_ARGS_((ClientData dummy,
1886 Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[]));
1887 EXTERN int Tcl_FileEventObjCmd _ANSI_ARGS_((ClientData clientData,
1888 Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[]));
1889 EXTERN int Tcl_FlushObjCmd _ANSI_ARGS_((ClientData clientData,
1890 Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[]));
1891 EXTERN int Tcl_ForObjCmd _ANSI_ARGS_((ClientData clientData,
1892 Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[]));
1893 EXTERN int Tcl_ForeachObjCmd _ANSI_ARGS_((ClientData clientData,
1894 Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[]));
1895 EXTERN int Tcl_FormatObjCmd _ANSI_ARGS_((ClientData dummy,
1896 Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[]));
1897 EXTERN int Tcl_GetsObjCmd _ANSI_ARGS_((ClientData clientData,
1898 Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[]));
1899 EXTERN int Tcl_GlobalObjCmd _ANSI_ARGS_((ClientData clientData,
1900 Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[]));
1901 EXTERN int Tcl_GlobObjCmd _ANSI_ARGS_((ClientData clientData,
1902 Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[]));
1903 EXTERN int Tcl_IfObjCmd _ANSI_ARGS_((ClientData clientData,
1904 Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[]));
1905 EXTERN int Tcl_IncrObjCmd _ANSI_ARGS_((ClientData clientData,
1906 Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[]));
1907 EXTERN int Tcl_InfoObjCmd _ANSI_ARGS_((ClientData clientData,
1908 Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[]));
1909 EXTERN int Tcl_InterpObjCmd _ANSI_ARGS_((ClientData clientData,
1910 Tcl_Interp *interp, int argc, Tcl_Obj *CONST objv[]));
1911 EXTERN int Tcl_JoinObjCmd _ANSI_ARGS_((ClientData clientData,
1912 Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[]));
1913 EXTERN int Tcl_LappendObjCmd _ANSI_ARGS_((ClientData clientData,
1914 Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[]));
1915 EXTERN int Tcl_LindexObjCmd _ANSI_ARGS_((ClientData clientData,
1916 Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[]));
1917 EXTERN int Tcl_LinsertObjCmd _ANSI_ARGS_((ClientData clientData,
1918 Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[]));
1919 EXTERN int Tcl_LlengthObjCmd _ANSI_ARGS_((ClientData clientData,
1920 Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[]));
1921 EXTERN int Tcl_ListObjCmd _ANSI_ARGS_((ClientData clientData,
1922 Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[]));
1923 EXTERN int Tcl_LoadObjCmd _ANSI_ARGS_((ClientData clientData,
1924 Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[]));
1925 EXTERN int Tcl_LrangeObjCmd _ANSI_ARGS_((ClientData clientData,
1926 Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[]));
1927 EXTERN int Tcl_LreplaceObjCmd _ANSI_ARGS_((ClientData clientData,
1928 Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[]));
1929 EXTERN int Tcl_LsearchObjCmd _ANSI_ARGS_((ClientData clientData,
1930 Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[]));
1931 EXTERN int Tcl_LsortObjCmd _ANSI_ARGS_((ClientData clientData,
1932 Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[]));
1933 EXTERN int Tcl_NamespaceObjCmd _ANSI_ARGS_((ClientData clientData,
1934 Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[]));
1935 EXTERN int Tcl_OpenObjCmd _ANSI_ARGS_((ClientData clientData,
1936 Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[]));
1937 EXTERN int Tcl_PackageObjCmd _ANSI_ARGS_((ClientData clientData,
1938 Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[]));
1939 EXTERN int Tcl_PidObjCmd _ANSI_ARGS_((ClientData clientData,
1940 Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[]));
1941 EXTERN int Tcl_PutsObjCmd _ANSI_ARGS_((ClientData clientData,
1942 Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[]));
1943 EXTERN int Tcl_PwdObjCmd _ANSI_ARGS_((ClientData clientData,
1944 Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[]));
1945 EXTERN int Tcl_ReadObjCmd _ANSI_ARGS_((ClientData clientData,
1946 Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[]));
1947 EXTERN int Tcl_RegexpObjCmd _ANSI_ARGS_((ClientData clientData,
1948 Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[]));
1949 EXTERN int Tcl_RegsubObjCmd _ANSI_ARGS_((ClientData clientData,
1950 Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[]));
1951 EXTERN int Tcl_RenameObjCmd _ANSI_ARGS_((ClientData clientData,
1952 Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[]));
1953 EXTERN int Tcl_ReturnObjCmd _ANSI_ARGS_((ClientData clientData,
1954 Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[]));
1955 EXTERN int Tcl_ScanObjCmd _ANSI_ARGS_((ClientData clientData,
1956 Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[]));
1957 EXTERN int Tcl_SeekObjCmd _ANSI_ARGS_((ClientData clientData,
1958 Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[]));
1959 EXTERN int Tcl_SetObjCmd _ANSI_ARGS_((ClientData clientData,
1960 Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[]));
1961 EXTERN int Tcl_SplitObjCmd _ANSI_ARGS_((ClientData clientData,
1962 Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[]));
1963 EXTERN int Tcl_SocketObjCmd _ANSI_ARGS_((ClientData clientData,
1964 Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[]));
1965 EXTERN int Tcl_SourceObjCmd _ANSI_ARGS_((ClientData clientData,
1966 Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[]));
1967 EXTERN int Tcl_StringObjCmd _ANSI_ARGS_((ClientData clientData,
1968 Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[]));
1969 EXTERN int Tcl_SubstObjCmd _ANSI_ARGS_((ClientData clientData,
1970 Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[]));
1971 EXTERN int Tcl_SwitchObjCmd _ANSI_ARGS_((ClientData clientData,
1972 Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[]));
1973 EXTERN int Tcl_TellObjCmd _ANSI_ARGS_((ClientData clientData,
1974 Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[]));
1975 EXTERN int Tcl_TimeObjCmd _ANSI_ARGS_((ClientData clientData,
1976 Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[]));
1977 EXTERN int Tcl_TraceObjCmd _ANSI_ARGS_((ClientData clientData,
1978 Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[]));
1979 EXTERN int Tcl_UnsetObjCmd _ANSI_ARGS_((ClientData clientData,
1980 Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[]));
1981 EXTERN int Tcl_UpdateObjCmd _ANSI_ARGS_((ClientData clientData,
1982 Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[]));
1983 EXTERN int Tcl_UplevelObjCmd _ANSI_ARGS_((ClientData clientData,
1984 Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[]));
1985 EXTERN int Tcl_UpvarObjCmd _ANSI_ARGS_((ClientData clientData,
1986 Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[]));
1987 EXTERN int Tcl_VariableObjCmd _ANSI_ARGS_((ClientData clientData,
1988 Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[]));
1989 EXTERN int Tcl_VwaitObjCmd _ANSI_ARGS_((ClientData clientData,
1990 Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[]));
1991 EXTERN int Tcl_WhileObjCmd _ANSI_ARGS_((ClientData clientData,
1992 Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[]));
1993
1994 /*
1995 *----------------------------------------------------------------
1996 * Command procedures found only in the Mac version of the core:
1997 *----------------------------------------------------------------
1998 */
1999
2000 #ifdef MAC_TCL
2001 EXTERN int Tcl_EchoCmd _ANSI_ARGS_((ClientData clientData,
2002 Tcl_Interp *interp, int argc, char **argv));
2003 EXTERN int Tcl_LsObjCmd _ANSI_ARGS_((ClientData clientData,
2004 Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[]));
2005 EXTERN int Tcl_BeepObjCmd _ANSI_ARGS_((ClientData clientData,
2006 Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[]));
2007 EXTERN int Tcl_MacSourceObjCmd _ANSI_ARGS_((ClientData clientData,
2008 Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[]));
2009 EXTERN int Tcl_ResourceObjCmd _ANSI_ARGS_((ClientData clientData,
2010 Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[]));
2011 #endif
2012
2013 /*
2014 *----------------------------------------------------------------
2015 * Compilation procedures for commands in the generic core:
2016 *----------------------------------------------------------------
2017 */
2018
2019 EXTERN int TclCompileBreakCmd _ANSI_ARGS_((Tcl_Interp *interp,
2020 Tcl_Parse *parsePtr, struct CompileEnv *envPtr));
2021 EXTERN int TclCompileCatchCmd _ANSI_ARGS_((Tcl_Interp *interp,
2022 Tcl_Parse *parsePtr, struct CompileEnv *envPtr));
2023 EXTERN int TclCompileContinueCmd _ANSI_ARGS_((Tcl_Interp *interp,
2024 Tcl_Parse *parsePtr, struct CompileEnv *envPtr));
2025 EXTERN int TclCompileExprCmd _ANSI_ARGS_((Tcl_Interp *interp,
2026 Tcl_Parse *parsePtr, struct CompileEnv *envPtr));
2027 EXTERN int TclCompileForCmd _ANSI_ARGS_((Tcl_Interp *interp,
2028 Tcl_Parse *parsePtr, struct CompileEnv *envPtr));
2029 EXTERN int TclCompileForeachCmd _ANSI_ARGS_((Tcl_Interp *interp,
2030 Tcl_Parse *parsePtr, struct CompileEnv *envPtr));
2031 EXTERN int TclCompileIfCmd _ANSI_ARGS_((Tcl_Interp *interp,
2032 Tcl_Parse *parsePtr, struct CompileEnv *envPtr));
2033 EXTERN int TclCompileIncrCmd _ANSI_ARGS_((Tcl_Interp *interp,
2034 Tcl_Parse *parsePtr, struct CompileEnv *envPtr));
2035 EXTERN int TclCompileSetCmd _ANSI_ARGS_((Tcl_Interp *interp,
2036 Tcl_Parse *parsePtr, struct CompileEnv *envPtr));
2037 EXTERN int TclCompileWhileCmd _ANSI_ARGS_((Tcl_Interp *interp,
2038 Tcl_Parse *parsePtr, struct CompileEnv *envPtr));
2039
2040 /*
2041 *----------------------------------------------------------------
2042 * Macros used by the Tcl core to create and release Tcl objects.
2043 * TclNewObj(objPtr) creates a new object denoting an empty string.
2044 * TclDecrRefCount(objPtr) decrements the object's reference count,
2045 * and frees the object if its reference count is zero.
2046 * These macros are inline versions of Tcl_NewObj() and
2047 * Tcl_DecrRefCount(). Notice that the names differ in not having
2048 * a "_" after the "Tcl". Notice also that these macros reference
2049 * their argument more than once, so you should avoid calling them
2050 * with an expression that is expensive to compute or has
2051 * side effects. The ANSI C "prototypes" for these macros are:
2052 *
2053 * EXTERN void TclNewObj _ANSI_ARGS_((Tcl_Obj *objPtr));
2054 * EXTERN void TclDecrRefCount _ANSI_ARGS_((Tcl_Obj *objPtr));
2055 *----------------------------------------------------------------
2056 */
2057
2058 #ifdef TCL_COMPILE_STATS
2059 # define TclIncrObjsAllocated() \
2060 tclObjsAlloced++
2061 # define TclIncrObjsFreed() \
2062 tclObjsFreed++
2063 #else
2064 # define TclIncrObjsAllocated()
2065 # define TclIncrObjsFreed()
2066 #endif /* TCL_COMPILE_STATS */
2067
2068 #ifdef TCL_MEM_DEBUG
2069 # define TclNewObj(objPtr) \
2070 (objPtr) = (Tcl_Obj *) \
2071 Tcl_DbCkalloc(sizeof(Tcl_Obj), __FILE__, __LINE__); \
2072 (objPtr)->refCount = 0; \
2073 (objPtr)->bytes = tclEmptyStringRep; \
2074 (objPtr)->length = 0; \
2075 (objPtr)->typePtr = NULL; \
2076 TclIncrObjsAllocated()
2077
2078 # define TclDbNewObj(objPtr, file, line) \
2079 (objPtr) = (Tcl_Obj *) Tcl_DbCkalloc(sizeof(Tcl_Obj), (file), (line)); \
2080 (objPtr)->refCount = 0; \
2081 (objPtr)->bytes = tclEmptyStringRep; \
2082 (objPtr)->length = 0; \
2083 (objPtr)->typePtr = NULL; \
2084 TclIncrObjsAllocated()
2085
2086 # define TclDecrRefCount(objPtr) \
2087 if (--(objPtr)->refCount <= 0) { \
2088 if ((objPtr)->refCount < -1) \
2089 panic("Reference count for %lx was negative: %s line %d", \
2090 (objPtr), __FILE__, __LINE__); \
2091 if (((objPtr)->bytes != NULL) \
2092 && ((objPtr)->bytes != tclEmptyStringRep)) { \
2093 ckfree((char *) (objPtr)->bytes); \
2094 } \
2095 if (((objPtr)->typePtr != NULL) \
2096 && ((objPtr)->typePtr->freeIntRepProc != NULL)) { \
2097 (objPtr)->typePtr->freeIntRepProc(objPtr); \
2098 } \
2099 ckfree((char *) (objPtr)); \
2100 TclIncrObjsFreed(); \
2101 }
2102
2103 #else /* not TCL_MEM_DEBUG */
2104
2105 #ifdef TCL_THREADS
2106 extern Tcl_Mutex tclObjMutex;
2107 #endif
2108
2109 # define TclNewObj(objPtr) \
2110 Tcl_MutexLock(&tclObjMutex); \
2111 if (tclFreeObjList == NULL) { \
2112 TclAllocateFreeObjects(); \
2113 } \
2114 (objPtr) = tclFreeObjList; \
2115 tclFreeObjList = (Tcl_Obj *) \
2116 tclFreeObjList->internalRep.otherValuePtr; \
2117 (objPtr)->refCount = 0; \
2118 (objPtr)->bytes = tclEmptyStringRep; \
2119 (objPtr)->length = 0; \
2120 (objPtr)->typePtr = NULL; \
2121 TclIncrObjsAllocated(); \
2122 Tcl_MutexUnlock(&tclObjMutex)
2123
2124 # define TclDecrRefCount(objPtr) \
2125 if (--(objPtr)->refCount <= 0) { \
2126 if (((objPtr)->bytes != NULL) \
2127 && ((objPtr)->bytes != tclEmptyStringRep)) { \
2128 ckfree((char *) (objPtr)->bytes); \
2129 } \
2130 if (((objPtr)->typePtr != NULL) \
2131 && ((objPtr)->typePtr->freeIntRepProc != NULL)) { \
2132 (objPtr)->typePtr->freeIntRepProc(objPtr); \
2133 } \
2134 Tcl_MutexLock(&tclObjMutex); \
2135 (objPtr)->internalRep.otherValuePtr = (VOID *) tclFreeObjList; \
2136 tclFreeObjList = (objPtr); \
2137 TclIncrObjsFreed(); \
2138 Tcl_MutexUnlock(&tclObjMutex); \
2139 }
2140 #endif /* TCL_MEM_DEBUG */
2141
2142 /*
2143 *----------------------------------------------------------------
2144 * Macro used by the Tcl core to set a Tcl_Obj's string representation
2145 * to a copy of the "len" bytes starting at "bytePtr". This code
2146 * works even if the byte array contains NULLs as long as the length
2147 * is correct. Because "len" is referenced multiple times, it should
2148 * be as simple an expression as possible. The ANSI C "prototype" for
2149 * this macro is:
2150 *
2151 * EXTERN void TclInitStringRep _ANSI_ARGS_((Tcl_Obj *objPtr,
2152 * char *bytePtr, int len));
2153 *----------------------------------------------------------------
2154 */
2155
2156 #define TclInitStringRep(objPtr, bytePtr, len) \
2157 if ((len) == 0) { \
2158 (objPtr)->bytes = tclEmptyStringRep; \
2159 (objPtr)->length = 0; \
2160 } else { \
2161 (objPtr)->bytes = (char *) ckalloc((unsigned) ((len) + 1)); \
2162 memcpy((VOID *) (objPtr)->bytes, (VOID *) (bytePtr), \
2163 (unsigned) (len)); \
2164 (objPtr)->bytes[len] = '\0'; \
2165 (objPtr)->length = (len); \
2166 }
2167
2168 /*
2169 *----------------------------------------------------------------
2170 * Macro used by the Tcl core to get the string representation's
2171 * byte array pointer from a Tcl_Obj. This is an inline version
2172 * of Tcl_GetString(). The macro's expression result is the string
2173 * rep's byte pointer which might be NULL. The bytes referenced by
2174 * this pointer must not be modified by the caller.
2175 * The ANSI C "prototype" for this macro is:
2176 *
2177 * EXTERN char * TclGetString _ANSI_ARGS_((Tcl_Obj *objPtr));
2178 *----------------------------------------------------------------
2179 */
2180
2181 #define TclGetString(objPtr) \
2182 ((objPtr)->bytes? (objPtr)->bytes : Tcl_GetString((objPtr)))
2183
2184 #include "tclIntDecls.h"
2185
2186 # undef TCL_STORAGE_CLASS
2187 # define TCL_STORAGE_CLASS DLLIMPORT
2188
2189 #endif /* _TCLINT */
2190
2191
2192 /* $History: tclint.h $
2193 *
2194 * ***************** Version 1 *****************
2195 * User: Dtashley Date: 1/02/01 Time: 1:29a
2196 * Created in $/IjuScripter, IjuConsole/Source/Tcl Base
2197 * Initial check-in.
2198 */
2199
2200 /* End of TCLINT.H */

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