jsinterp.h

java script test programing source code

    JSPropertyCacheEntry table[PROPERTY_CACHE_SIZE];
    JSBool               empty;
    JSBool               disabled;
#ifdef JS_PROPERTY_CACHE_METERING
    uint32               fills;
    uint32               recycles;
    uint32               tests;
    uint32               misses;
    uint32               flushes;
# define PCMETER(x)      x
#else
# define PCMETER(x)      /* nothing */
#endif
} JSPropertyCache;

#define PROPERTY_CACHE_FILL(cache, obj, id, sprop)                            \
    JS_BEGIN_MACRO                                                            \
        JSPropertyCache *cache_ = (cache);                                    \
        if (!cache_->disabled) {                                              \
            uintN hashIndex_ = (uintN) PROPERTY_CACHE_HASH(obj, id);          \
            JSPropertyCacheEntry *pce_ = &cache_->table[hashIndex_];          \
            JSPropertyCacheEntry entry_;                                      \
            JSScopeProperty *pce_sprop_;                                      \
            PCE_LOAD(cache_, pce_, entry_);                                   \
            pce_sprop_ = PCE_PROPERTY(entry_);                                \
            PCMETER(if (pce_sprop_ && pce_sprop_ != sprop)                    \
                        cache_->recycles++);                                  \
            PCE_OBJECT(entry_) = obj;                                         \
            PCE_PROPERTY(entry_) = sprop;                                     \
            cache_->empty = JS_FALSE;                                         \
            PCMETER(cache_->fills++);                                         \
            PCE_STORE(cache_, pce_, entry_);                                  \
        }                                                                     \
    JS_END_MACRO

#define PROPERTY_CACHE_TEST(cache, obj, id, sprop)                            \
    JS_BEGIN_MACRO                                                            \
        uintN hashIndex_ = (uintN) PROPERTY_CACHE_HASH(obj, id);              \
        JSPropertyCache *cache_ = (cache);                                    \
        JSPropertyCacheEntry *pce_ = &cache_->table[hashIndex_];              \
        JSPropertyCacheEntry entry_;                                          \
        JSScopeProperty *pce_sprop_;                                          \
        PCE_LOAD(cache_, pce_, entry_);                                       \
        pce_sprop_ = PCE_PROPERTY(entry_);                                    \
        PCMETER(cache_->tests++);                                             \
        if (pce_sprop_ &&                                                     \
            PCE_OBJECT(entry_) == obj &&                                      \
            pce_sprop_->id == id) {                                           \
            sprop = pce_sprop_;                                               \
        } else {                                                              \
            PCMETER(cache_->misses++);                                        \
            sprop = NULL;                                                     \
        }                                                                     \
    JS_END_MACRO

extern void
js_FlushPropertyCache(JSContext *cx);

extern void
js_DisablePropertyCache(JSContext *cx);

extern void
js_EnablePropertyCache(JSContext *cx);

extern JS_FRIEND_API(jsval *)
js_AllocStack(JSContext *cx, uintN nslots, void **markp);

extern JS_FRIEND_API(void)
js_FreeStack(JSContext *cx, void *mark);

extern JSBool
js_GetArgument(JSContext *cx, JSObject *obj, jsval id, jsval *vp);

extern JSBool
js_SetArgument(JSContext *cx, JSObject *obj, jsval id, jsval *vp);

extern JSBool
js_GetLocalVariable(JSContext *cx, JSObject *obj, jsval id, jsval *vp);

extern JSBool
js_SetLocalVariable(JSContext *cx, JSObject *obj, jsval id, jsval *vp);

#ifdef DUMP_CALL_TABLE
# define JSOPTION_LOGCALL_TOSOURCE JS_BIT(15)

extern JSHashTable  *js_CallTable;
extern size_t       js_LogCallToSourceLimit;

extern void         js_DumpCallTable(JSContext *cx);
#endif

/*
 * Refresh and return fp->scopeChain.  It may be stale if block scopes are
 * active but not yet reflected by objects in the scope chain.  If a block
 * scope contains a with, eval, XML filtering predicate, or similar such
 * dynamically scoped construct, then compile-time block scope at fp->blocks
 * must reflect at runtime.
 */
extern JSObject *
js_GetScopeChain(JSContext *cx, JSStackFrame *fp);

/*
 * Compute the 'this' parameter for a call with nominal 'this' given by thisp
 * and arguments including argv[-1] (nominal 'this') and argv[-2] (callee).
 * Activation objects ("Call" objects not created with "new Call()", i.e.,
 * "Call" objects that have private data) may not be referred to by 'this',
 * per ECMA-262, so js_ComputeThis censors them.
 */
extern JSObject *
js_ComputeThis(JSContext *cx, JSObject *thisp, jsval *argv);

/*
 * NB: js_Invoke requires that cx is currently running JS (i.e., that cx->fp
 * is non-null), and that the callee, |this| parameter, and actual arguments
 * are already pushed on the stack under cx->fp->sp.
 */
extern JS_FRIEND_API(JSBool)
js_Invoke(JSContext *cx, uintN argc, uintN flags);

/*
 * Consolidated js_Invoke flags simply rename certain JSFRAME_* flags, so that
 * we can share bits stored in JSStackFrame.flags and passed to:
 *
 *   js_Invoke
 *   js_InternalInvoke
 *   js_ValueToFunction
 *   js_ValueToFunctionObject
 *   js_ValueToCallableObject
 *   js_ReportIsNotFunction
 *
 * See jsfun.h for the latter four and flag renaming macros.
 */
#define JSINVOKE_CONSTRUCT      JSFRAME_CONSTRUCTING
#define JSINVOKE_INTERNAL       JSFRAME_INTERNAL
#define JSINVOKE_SKIP_CALLER    JSFRAME_SKIP_CALLER
#define JSINVOKE_ITERATOR       JSFRAME_ITERATOR

/*
 * Mask to isolate construct and iterator flags for use with jsfun.h functions.
 */
#define JSINVOKE_FUNFLAGS       (JSINVOKE_CONSTRUCT | JSINVOKE_ITERATOR)

/*
 * "Internal" calls may come from C or C++ code using a JSContext on which no
 * JS is running (!cx->fp), so they may need to push a dummy JSStackFrame.
 */
#define js_InternalCall(cx,obj,fval,argc,argv,rval)                           \
    js_InternalInvoke(cx, obj, fval, 0, argc, argv, rval)

#define js_InternalConstruct(cx,obj,fval,argc,argv,rval)                      \
    js_InternalInvoke(cx, obj, fval, JSINVOKE_CONSTRUCT, argc, argv, rval)

extern JSBool
js_InternalInvoke(JSContext *cx, JSObject *obj, jsval fval, uintN flags,
                  uintN argc, jsval *argv, jsval *rval);

extern JSBool
js_InternalGetOrSet(JSContext *cx, JSObject *obj, jsid id, jsval fval,
                    JSAccessMode mode, uintN argc, jsval *argv, jsval *rval);

extern JSBool
js_Execute(JSContext *cx, JSObject *chain, JSScript *script,
           JSStackFrame *down, uintN flags, jsval *result);

extern JSBool
js_CheckRedeclaration(JSContext *cx, JSObject *obj, jsid id, uintN attrs,
                      JSObject **objp, JSProperty **propp);

extern JSBool
js_StrictlyEqual(jsval lval, jsval rval);

extern JSBool
js_InvokeConstructor(JSContext *cx, jsval *vp, uintN argc);

extern JSBool
js_Interpret(JSContext *cx, jsbytecode *pc, jsval *result);

JS_END_EXTERN_C

#endif /* jsinterp_h___ */