jsarray.h

/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
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 * the License. You may obtain a copy of the License at
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 * for the specific language governing rights and limitations under the
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 * The Original Code is Mozilla Communicator client code, released
 * March 31, 1998.
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 * The Initial Developer of the Original Code is
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#ifndef jsarray_h___
#define jsarray_h___
/*
 * JS Array interface.
 */
#include "jsprvtd.h"
#include "jspubtd.h"

JS_BEGIN_EXTERN_C

/* Generous sanity-bound on length (in elements) of array initialiser. */
#define ARRAY_INIT_LIMIT        JS_BIT(24)

extern JSBool
js_IdIsIndex(jsval id, jsuint *indexp);

extern JSClass js_ArrayClass;

extern JSObject *
js_InitArrayClass(JSContext *cx, JSObject *obj);

extern JSObject *
js_NewArrayObject(JSContext *cx, jsuint length, jsval *vector);

extern JSBool
js_GetLengthProperty(JSContext *cx, JSObject *obj, jsuint *lengthp);

extern JSBool
js_SetLengthProperty(JSContext *cx, JSObject *obj, jsuint length);

extern JSBool
js_HasLengthProperty(JSContext *cx, JSObject *obj, jsuint *lengthp);

/*
 * Test whether an object is "array-like".  Currently this means whether obj
 * is an Array or an arguments object.  We would like an API, and probably a
 * way in the language, to bless other objects as array-like: having indexed
 * properties, and a 'length' property of uint32 value equal to one more than
 * the greatest index.
 */
extern JSBool
js_IsArrayLike(JSContext *cx, JSObject *obj, JSBool *answerp, jsuint *lengthp);

/*
 * JS-specific heap sort function.
 */
typedef JSBool (*JSComparator)(void *arg, const void *a, const void *b,
                               int *result);

extern JSBool
js_HeapSort(void *vec, size_t nel, void *pivot, size_t elsize,
            JSComparator cmp, void *arg);

JS_END_EXTERN_C

#endif /* jsarray_h___ */