mirror of
https://github.com/mozilla/gecko-dev.git
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Use explicit local roots in native methods (313763, r/sr=igor/shaver).
This commit is contained in:
brendan%mozilla.org
parent
46120f51a9
commit
46a92c27aa
106
js/src/jsarray.c
106
js/src/jsarray.c
@ -1060,7 +1060,7 @@ array_shift(JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval)
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{
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jsuint length, i;
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jsid id, id2;
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jsval v, junk;
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jsval junk;
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if (!js_GetLengthProperty(cx, obj, &length))
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return JS_FALSE;
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@ -1081,9 +1081,9 @@ array_shift(JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval)
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return JS_FALSE;
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if (!IndexToId(cx, i - 1, &id2))
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return JS_FALSE;
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if (!OBJ_GET_PROPERTY(cx, obj, id, &v))
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if (!OBJ_GET_PROPERTY(cx, obj, id, &argv[0]))
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return JS_FALSE;
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if (!OBJ_SET_PROPERTY(cx, obj, id2, &v))
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if (!OBJ_SET_PROPERTY(cx, obj, id2, &argv[0]))
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return JS_FALSE;
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}
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}
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@ -1102,7 +1102,7 @@ array_unshift(JSContext *cx, JSObject *obj, uintN argc, jsval *argv,
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jsuint length, last;
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uintN i;
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jsid id, id2;
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jsval v;
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jsval *vp, junk;
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if (!js_GetLengthProperty(cx, obj, &length))
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return JS_FALSE;
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@ -1110,18 +1110,19 @@ array_unshift(JSContext *cx, JSObject *obj, uintN argc, jsval *argv,
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/* Slide up the array to make room for argc at the bottom. */
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if (length > 0) {
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last = length;
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vp = argv + argc;
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while (last--) {
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if (!IndexToExistingId(cx, obj, last, &id))
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return JS_FALSE;
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if (id == JSID_HOLE) {
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OBJ_DELETE_PROPERTY(cx, obj, id2, &v); /* v is junk. */
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OBJ_DELETE_PROPERTY(cx, obj, id2, &junk);
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continue;
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}
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if (!OBJ_GET_PROPERTY(cx, obj, id, &v))
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if (!OBJ_GET_PROPERTY(cx, obj, id, vp))
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return JS_FALSE;
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if (!IndexToId(cx, last + argc, &id2))
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return JS_FALSE;
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if (!OBJ_SET_PROPERTY(cx, obj, id2, &v))
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if (!OBJ_SET_PROPERTY(cx, obj, id2, vp))
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return JS_FALSE;
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}
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}
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@ -1145,16 +1146,20 @@ array_unshift(JSContext *cx, JSObject *obj, uintN argc, jsval *argv,
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static JSBool
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array_splice(JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval)
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{
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jsval *vp, junk;
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jsuint length, begin, end, count, delta, last;
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uintN i;
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jsdouble d;
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jsid id, id2;
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jsval v;
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JSObject *obj2;
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uintN i;
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/* Nothing to do if no args. Otherwise lock and load length. */
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/*
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* Nothing to do if no args. Otherwise point vp at our one explicit local
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* root and get length.
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*/
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if (argc == 0)
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return JS_TRUE;
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vp = argv + argc;
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if (!js_GetLengthProperty(cx, obj, &length))
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return JS_FALSE;
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@ -1228,11 +1233,11 @@ array_splice(JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval)
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return JS_FALSE;
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if (id == JSID_HOLE)
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continue; /* don't fill holes in the new array */
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if (!OBJ_GET_PROPERTY(cx, obj, id, &v))
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if (!OBJ_GET_PROPERTY(cx, obj, id, vp))
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return JS_FALSE;
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if (!IndexToId(cx, last - begin, &id2))
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return JS_FALSE;
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if (!OBJ_SET_PROPERTY(cx, obj2, id2, &v))
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if (!OBJ_SET_PROPERTY(cx, obj2, id2, vp))
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return JS_FALSE;
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}
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@ -1253,12 +1258,12 @@ array_splice(JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval)
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if (!IndexToId(cx, last + delta, &id2))
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return JS_FALSE;
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if (id != JSID_HOLE) {
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if (!OBJ_GET_PROPERTY(cx, obj, id, &v))
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if (!OBJ_GET_PROPERTY(cx, obj, id, vp))
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return JS_FALSE;
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if (!OBJ_SET_PROPERTY(cx, obj, id2, &v))
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if (!OBJ_SET_PROPERTY(cx, obj, id2, vp))
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return JS_FALSE;
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} else {
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if (!OBJ_DELETE_PROPERTY(cx, obj, id2, &v))
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if (!OBJ_DELETE_PROPERTY(cx, obj, id2, &junk))
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return JS_FALSE;
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}
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}
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@ -1271,12 +1276,12 @@ array_splice(JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval)
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if (!IndexToId(cx, last - delta, &id2))
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return JS_FALSE;
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if (id != JSID_HOLE) {
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if (!OBJ_GET_PROPERTY(cx, obj, id, &v))
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if (!OBJ_GET_PROPERTY(cx, obj, id, vp))
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return JS_FALSE;
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if (!OBJ_SET_PROPERTY(cx, obj, id2, &v))
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if (!OBJ_SET_PROPERTY(cx, obj, id2, vp))
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return JS_FALSE;
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} else {
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if (!OBJ_DELETE_PROPERTY(cx, obj, id2, &v))
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if (!OBJ_DELETE_PROPERTY(cx, obj, id2, &junk))
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return JS_FALSE;
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}
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}
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@ -1303,12 +1308,15 @@ array_splice(JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval)
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static JSBool
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array_concat(JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval)
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{
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jsval *vp, v;
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JSObject *nobj, *aobj;
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jsuint length, alength, slot;
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uintN i;
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jsval v;
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jsid id, id2;
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/* Hoist the explicit local root address computation. */
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vp = argv + argc;
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/* Treat obj as the first argument; see ECMA 15.4.4.4. */
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--argv;
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JS_ASSERT(obj == JSVAL_TO_OBJECT(argv[0]));
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@ -1329,10 +1337,10 @@ array_concat(JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval)
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if (!OBJ_GET_PROPERTY(cx, aobj,
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ATOM_TO_JSID(cx->runtime->atomState
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.lengthAtom),
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&v)) {
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vp)) {
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return JS_FALSE;
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}
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if (!ValueIsLength(cx, v, &alength))
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if (!ValueIsLength(cx, *vp, &alength))
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return JS_FALSE;
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for (slot = 0; slot < alength; slot++) {
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if (!IndexToExistingId(cx, aobj, slot, &id))
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@ -1344,11 +1352,11 @@ array_concat(JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval)
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*/
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continue;
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}
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if (!OBJ_GET_PROPERTY(cx, aobj, id, &v))
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if (!OBJ_GET_PROPERTY(cx, aobj, id, vp))
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return JS_FALSE;
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if (!IndexToId(cx, length + slot, &id2))
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return JS_FALSE;
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if (!OBJ_SET_PROPERTY(cx, nobj, id2, &v))
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if (!OBJ_SET_PROPERTY(cx, nobj, id2, vp))
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return JS_FALSE;
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}
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length += alength;
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@ -1356,9 +1364,10 @@ array_concat(JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval)
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}
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}
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*vp = v;
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if (!IndexToId(cx, length, &id))
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return JS_FALSE;
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if (!OBJ_SET_PROPERTY(cx, nobj, id, &v))
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if (!OBJ_SET_PROPERTY(cx, nobj, id, vp))
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return JS_FALSE;
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length++;
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}
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@ -1369,11 +1378,14 @@ array_concat(JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval)
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static JSBool
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array_slice(JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval)
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{
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jsval *vp;
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JSObject *nobj;
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jsuint length, begin, end, slot;
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jsdouble d;
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jsid id, id2;
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jsval v;
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/* Hoist the explicit local root address computation. */
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vp = argv + argc;
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/* Create a new Array object and store it in the rval local root. */
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nobj = js_NewArrayObject(cx, 0, NULL);
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@ -1422,11 +1434,11 @@ array_slice(JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval)
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return JS_FALSE;
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if (id == JSID_HOLE)
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continue;
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if (!OBJ_GET_PROPERTY(cx, obj, id, &v))
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if (!OBJ_GET_PROPERTY(cx, obj, id, vp))
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return JS_FALSE;
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if (!IndexToId(cx, slot - begin, &id2))
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return JS_FALSE;
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if (!OBJ_SET_PROPERTY(cx, nobj, id2, &v))
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if (!OBJ_SET_PROPERTY(cx, nobj, id2, vp))
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return JS_FALSE;
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}
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return js_SetLengthProperty(cx, nobj, end - begin);
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@ -1523,13 +1535,16 @@ static JSBool
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array_extra(JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval,
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ArrayExtraMode mode)
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{
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jsval *vp, *sp, *origsp, *oldsp;
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jsuint length, newlen, i;
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JSObject *callable, *thisp, *newarr;
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jsval *sp, *origsp, *oldsp;
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void *mark;
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JSStackFrame *fp;
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JSBool ok, b;
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/* Hoist the explicit local root address computation. */
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vp = argv + argc;
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if (!js_GetLengthProperty(cx, obj, &length))
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return JS_FALSE;
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@ -1545,6 +1560,11 @@ array_extra(JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval,
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* Set our initial return condition, used for zero-length array cases
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* (and pre-size our map return to match our known length, for all cases).
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*/
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#ifdef __GNUC__ /* quell GCC overwarning */
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newlen = 0;
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newarr = NULL;
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ok = JS_TRUE;
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#endif
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switch (mode) {
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case MAP:
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case FILTER:
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@ -1589,14 +1609,14 @@ array_extra(JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval,
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for (i = 0; i < length; i++) {
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jsid id;
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jsval v, rval2;
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jsval rval2;
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ok = IndexToExistingId(cx, obj, i, &id);
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if (!ok)
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break;
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if (id == JSID_HOLE)
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continue;
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ok = OBJ_GET_PROPERTY(cx, obj, id, &v);
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ok = OBJ_GET_PROPERTY(cx, obj, id, vp);
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if (!ok)
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break;
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@ -1604,7 +1624,7 @@ array_extra(JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval,
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sp = origsp;
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*sp++ = OBJECT_TO_JSVAL(callable);
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*sp++ = OBJECT_TO_JSVAL(thisp);
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*sp++ = v;
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*sp++ = *vp;
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*sp++ = INT_TO_JSVAL(i);
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*sp++ = OBJECT_TO_JSVAL(obj);
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@ -1639,11 +1659,11 @@ array_extra(JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval,
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case FILTER:
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if (!b)
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break;
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/* Filter passed v, push as result. */
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/* Filter passed *vp, push as result. */
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ok = IndexToId(cx, newlen++, &id);
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if (!ok)
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goto out;
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ok = OBJ_SET_PROPERTY(cx, newarr, id, &v);
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ok = OBJ_SET_PROPERTY(cx, newarr, id, vp);
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if (!ok)
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goto out;
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break;
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@ -1721,25 +1741,25 @@ static JSFunctionSpec array_methods[] = {
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#if JS_HAS_MORE_PERL_FUN
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{"push", array_push, 1,JSFUN_GENERIC_NATIVE,0},
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{"pop", array_pop, 0,JSFUN_GENERIC_NATIVE,0},
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{"shift", array_shift, 0,JSFUN_GENERIC_NATIVE,0},
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{"unshift", array_unshift, 1,JSFUN_GENERIC_NATIVE,0},
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{"splice", array_splice, 2,JSFUN_GENERIC_NATIVE,0},
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{"shift", array_shift, 0,JSFUN_GENERIC_NATIVE,1},
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{"unshift", array_unshift, 1,JSFUN_GENERIC_NATIVE,1},
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{"splice", array_splice, 2,JSFUN_GENERIC_NATIVE,1},
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#endif
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/* Python-esque sequence methods. */
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#if JS_HAS_SEQUENCE_OPS
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{"concat", array_concat, 1,JSFUN_GENERIC_NATIVE,0},
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{"slice", array_slice, 2,JSFUN_GENERIC_NATIVE,0},
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{"concat", array_concat, 1,JSFUN_GENERIC_NATIVE,1},
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{"slice", array_slice, 2,JSFUN_GENERIC_NATIVE,1},
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#endif
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#if JS_HAS_ARRAY_EXTRAS
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{"indexOf", array_indexOf, 1,JSFUN_GENERIC_NATIVE,0},
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{"lastIndexOf", array_lastIndexOf, 1,JSFUN_GENERIC_NATIVE,0},
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{"forEach", array_forEach, 1,JSFUN_GENERIC_NATIVE,0},
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{"map", array_map, 1,JSFUN_GENERIC_NATIVE,0},
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{"filter", array_filter, 1,JSFUN_GENERIC_NATIVE,0},
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{"some", array_some, 1,JSFUN_GENERIC_NATIVE,0},
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{"every", array_every, 1,JSFUN_GENERIC_NATIVE,0},
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{"forEach", array_forEach, 1,JSFUN_GENERIC_NATIVE,1},
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{"map", array_map, 1,JSFUN_GENERIC_NATIVE,1},
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{"filter", array_filter, 1,JSFUN_GENERIC_NATIVE,1},
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{"some", array_some, 1,JSFUN_GENERIC_NATIVE,1},
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{"every", array_every, 1,JSFUN_GENERIC_NATIVE,1},
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#endif
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{0,0,0,0,0}
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