mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-10-11 04:15:43 +00:00
6b433caaaa
Initial check-in to mozilla tree: JSRef development is migrating from JSFUN13_BRANCH of /m/src repository to /m/pub
273 lines
9.1 KiB
C
273 lines
9.1 KiB
C
/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
|
|
*
|
|
* The contents of this file are subject to the Netscape Public License
|
|
* Version 1.0 (the "NPL"); you may not use this file except in
|
|
* compliance with the NPL. You may obtain a copy of the NPL at
|
|
* http://www.mozilla.org/NPL/
|
|
*
|
|
* Software distributed under the NPL is distributed on an "AS IS" basis,
|
|
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
|
|
* for the specific language governing rights and limitations under the
|
|
* NPL.
|
|
*
|
|
* The Initial Developer of this code under the NPL is Netscape
|
|
* Communications Corporation. Portions created by Netscape are
|
|
* Copyright (C) 1998 Netscape Communications Corporation. All Rights
|
|
* Reserved.
|
|
*/
|
|
|
|
#ifndef jsatom_h___
|
|
#define jsatom_h___
|
|
/*
|
|
* JS atom table.
|
|
*/
|
|
#include <stddef.h>
|
|
#include "prtypes.h"
|
|
#include "prhash.h"
|
|
#include "jsapi.h"
|
|
#include "jsprvtd.h"
|
|
#include "jspubtd.h"
|
|
|
|
#ifdef JS_THREADSAFE
|
|
#include "jslock.h"
|
|
#endif
|
|
|
|
PR_BEGIN_EXTERN_C
|
|
|
|
#define ATOM_NOCOPY 0x01 /* don't copy atom string bytes */
|
|
#define ATOM_TMPSTR 0x02 /* internal, to avoid extra string */
|
|
#define ATOM_MARK 0x04 /* atom is reachable via GC */
|
|
#define ATOM_PINNED 0x08 /* atom is pinned against GC */
|
|
|
|
struct JSAtom {
|
|
PRHashEntry entry; /* key is jsval, value keyword info */
|
|
uint8 flags; /* flags, PINNED and/or MARK for now */
|
|
int8 kwindex; /* keyword index, -1 if not keyword */
|
|
jsatomid number; /* atom serial number and hash code */
|
|
};
|
|
|
|
#define ATOM_KEY(atom) ((jsval)(atom)->entry.key)
|
|
#define ATOM_IS_OBJECT(atom) JSVAL_IS_OBJECT(ATOM_KEY(atom))
|
|
#define ATOM_TO_OBJECT(atom) JSVAL_TO_OBJECT(ATOM_KEY(atom))
|
|
#define ATOM_IS_INT(atom) JSVAL_IS_INT(ATOM_KEY(atom))
|
|
#define ATOM_TO_INT(atom) JSVAL_TO_INT(ATOM_KEY(atom))
|
|
#define ATOM_IS_DOUBLE(atom) JSVAL_IS_DOUBLE(ATOM_KEY(atom))
|
|
#define ATOM_TO_DOUBLE(atom) JSVAL_TO_DOUBLE(ATOM_KEY(atom))
|
|
#define ATOM_IS_STRING(atom) JSVAL_IS_STRING(ATOM_KEY(atom))
|
|
#define ATOM_TO_STRING(atom) JSVAL_TO_STRING(ATOM_KEY(atom))
|
|
#define ATOM_IS_BOOLEAN(atom) JSVAL_IS_BOOLEAN(ATOM_KEY(atom))
|
|
#define ATOM_TO_BOOLEAN(atom) JSVAL_TO_BOOLEAN(ATOM_KEY(atom))
|
|
#define ATOM_BYTES(atom) JS_GetStringBytes(ATOM_TO_STRING(atom))
|
|
|
|
struct JSAtomListElement {
|
|
JSAtomListElement *next;
|
|
jsatomid index; /* index in script-specific atom map */
|
|
JSAtom *atom;
|
|
};
|
|
|
|
struct JSAtomList {
|
|
JSAtomListElement *list; /* literals indexed for mapping */
|
|
jsuint count; /* count of indexed literals */
|
|
};
|
|
|
|
#define ATOM_LIST_INIT(al) ((al)->list = NULL, (al)->count = 0)
|
|
|
|
#define ATOM_LIST_SEARCH(_ale,_al,_atom) \
|
|
PR_BEGIN_MACRO \
|
|
JSAtomListElement **_alep = &(_al)->list; \
|
|
while ((_ale = *_alep) != NULL) { \
|
|
if (_ale->atom == (_atom)) { \
|
|
/* Hit, move atom's element to the front of the list. */ \
|
|
*_alep = _ale->next; \
|
|
_ale->next = (_al)->list; \
|
|
(_al)->list = _ale; \
|
|
break; \
|
|
} \
|
|
_alep = &_ale->next; \
|
|
} \
|
|
PR_END_MACRO
|
|
|
|
struct JSAtomMap {
|
|
JSAtom **vector; /* array of ptrs to indexed atoms */
|
|
jsatomid length; /* count of (to-be-)indexed atoms */
|
|
};
|
|
|
|
struct JSAtomState {
|
|
JSRuntime *runtime; /* runtime that owns us */
|
|
PRHashTable *table; /* hash table containing all atoms */
|
|
jsatomid number; /* one beyond greatest atom number */
|
|
|
|
/* Type names and value literals. */
|
|
JSAtom *typeAtoms[JSTYPE_LIMIT];
|
|
JSAtom *booleanAtoms[2];
|
|
JSAtom *nullAtom;
|
|
|
|
/* Various built-in or commonly-used atoms. */
|
|
JSAtom *ArrayAtom;
|
|
JSAtom *MathAtom;
|
|
JSAtom *ObjectAtom;
|
|
JSAtom *anonymousAtom;
|
|
JSAtom *argumentsAtom;
|
|
JSAtom *arityAtom;
|
|
JSAtom *assignAtom;
|
|
JSAtom *calleeAtom;
|
|
JSAtom *callerAtom;
|
|
JSAtom *classPrototypeAtom;
|
|
JSAtom *constructorAtom;
|
|
JSAtom *countAtom;
|
|
JSAtom *indexAtom;
|
|
JSAtom *inputAtom;
|
|
JSAtom *lengthAtom;
|
|
JSAtom *nameAtom;
|
|
JSAtom *parentAtom;
|
|
JSAtom *protoAtom;
|
|
JSAtom *toSourceAtom;
|
|
JSAtom *toStringAtom;
|
|
JSAtom *valueOfAtom;
|
|
|
|
#ifdef JS_THREADSAFE
|
|
JSThinLock lock;
|
|
volatile uint32 tablegen;
|
|
#endif
|
|
};
|
|
|
|
/* Well-known predefined strings and their atoms. */
|
|
extern char *js_type_str[];
|
|
extern char *js_boolean_str[];
|
|
|
|
extern char js_Array_str[];
|
|
extern char js_Math_str[];
|
|
extern char js_Object_str[];
|
|
extern char js_anonymous_str[];
|
|
extern char js_arguments_str[];
|
|
extern char js_arity_str[];
|
|
extern char js_assign_str[];
|
|
extern char js_callee_str[];
|
|
extern char js_caller_str[];
|
|
extern char js_class_prototype_str[];
|
|
extern char js_constructor_str[];
|
|
extern char js_count_str[];
|
|
extern char js_eval_str[];
|
|
extern char js_index_str[];
|
|
extern char js_input_str[];
|
|
extern char js_length_str[];
|
|
extern char js_name_str[];
|
|
extern char js_parent_str[];
|
|
extern char js_proto_str[];
|
|
extern char js_toSource_str[];
|
|
extern char js_toString_str[];
|
|
extern char js_valueOf_str[];
|
|
|
|
/*
|
|
* Initialize atom state. Return true on success, false with an out of
|
|
* memory error report on failure.
|
|
*/
|
|
extern JSBool
|
|
js_InitAtomState(JSContext *cx, JSAtomState *state);
|
|
|
|
/*
|
|
* Free and clear atom state.
|
|
*/
|
|
extern void
|
|
js_FreeAtomState(JSContext *cx, JSAtomState *state);
|
|
|
|
/*
|
|
* Atom garbage collection hooks.
|
|
*/
|
|
typedef void
|
|
(*JSGCThingMarker)(JSRuntime *rt, void *thing);
|
|
|
|
extern void
|
|
js_MarkAtomState(JSAtomState *state, JSGCThingMarker mark);
|
|
|
|
extern void
|
|
js_SweepAtomState(JSAtomState *state);
|
|
|
|
extern void
|
|
js_UnpinPinnedAtoms(JSAtomState *state);
|
|
|
|
/*
|
|
* Find or create the atom for an object. If we create a new atom, give it the
|
|
* type indicated in flags. Return 0 on failure to allocate memory.
|
|
*/
|
|
extern JSAtom *
|
|
js_AtomizeObject(JSContext *cx, JSObject *obj, uintN flags);
|
|
|
|
/*
|
|
* Find or create the atom for a Boolean value. If we create a new atom, give
|
|
* it the type indicated in flags. Return 0 on failure to allocate memory.
|
|
*/
|
|
extern JSAtom *
|
|
js_AtomizeBoolean(JSContext *cx, JSBool b, uintN flags);
|
|
|
|
/*
|
|
* Find or create the atom for an integer value. If we create a new atom, give
|
|
* it the type indicated in flags. Return 0 on failure to allocate memory.
|
|
*/
|
|
extern JSAtom *
|
|
js_AtomizeInt(JSContext *cx, jsint i, uintN flags);
|
|
|
|
/*
|
|
* Find or create the atom for a double value. If we create a new atom, give
|
|
* it the type indicated in flags. Return 0 on failure to allocate memory.
|
|
*/
|
|
extern JSAtom *
|
|
js_AtomizeDouble(JSContext *cx, jsdouble d, uintN flags);
|
|
|
|
/*
|
|
* Find or create the atom for a string. If we create a new atom, give it the
|
|
* type indicated in flags. Return 0 on failure to allocate memory.
|
|
*/
|
|
extern JSAtom *
|
|
js_AtomizeString(JSContext *cx, JSString *str, uintN flags);
|
|
|
|
extern JS_FRIEND_API(JSAtom *)
|
|
js_Atomize(JSContext *cx, const char *bytes, size_t length, uintN flags);
|
|
|
|
extern JS_FRIEND_API(JSAtom *)
|
|
js_AtomizeChars(JSContext *cx, const jschar *chars, size_t length, uintN flags);
|
|
|
|
/*
|
|
* This variant handles all value tag types.
|
|
*/
|
|
extern JSAtom *
|
|
js_AtomizeValue(JSContext *cx, jsval value, uintN flags);
|
|
|
|
/*
|
|
* Convert v to an atomized string.
|
|
*/
|
|
extern JSAtom *
|
|
js_ValueToStringAtom(JSContext *cx, jsval v);
|
|
|
|
/*
|
|
* Assign atom an index and insert it on al.
|
|
*/
|
|
extern JSAtomListElement *
|
|
js_IndexAtom(JSContext *cx, JSAtom *atom, JSAtomList *al);
|
|
|
|
/*
|
|
* Get the atom with index i from map.
|
|
*/
|
|
extern JS_FRIEND_API(JSAtom *)
|
|
js_GetAtom(JSContext *cx, JSAtomMap *map, jsatomid i);
|
|
|
|
/*
|
|
* For all unmapped atoms recorded in al, add a mapping from the atom's index
|
|
* to its address. The GC must not run until all indexed atoms in atomLists
|
|
* have been mapped by scripts connected to live objects (Function and Script
|
|
* class objects have scripts as/in their private data -- the GC knows about
|
|
* these two classes).
|
|
*/
|
|
extern JS_FRIEND_API(JSBool)
|
|
js_InitAtomMap(JSContext *cx, JSAtomMap *map, JSAtomList *al);
|
|
|
|
/*
|
|
* Free map->vector and clear map.
|
|
*/
|
|
extern JS_FRIEND_API(void)
|
|
js_FreeAtomMap(JSContext *cx, JSAtomMap *map);
|
|
|
|
PR_END_EXTERN_C
|
|
|
|
#endif /* jsatom_h___ */
|