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Bug 809652 - Add gross one-off predicates to jsfriendapi. r=jorendorff

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This commit is contained in:
Bobby Holley 2012-12-20 22:33:26 -08:00
parent 60185d18f7
commit c769a0aaa2
3 changed files with 70 additions and 0 deletions
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47
js/src/jsdate.cpp
View File

@ -3241,3 +3241,50 @@ js_DateGetMsecSinceEpoch(RawObject obj)
return obj->isDate() ? obj->getDateUTCTime().toNumber() : 0;
}
static const NativeImpl sReadOnlyDateMethods[] = {
date_getTime_impl,
date_getYear_impl,
date_getFullYear_impl,
date_getUTCFullYear_impl,
date_getMonth_impl,
date_getUTCMonth_impl,
date_getDate_impl,
date_getUTCDate_impl,
date_getDay_impl,
date_getUTCDay_impl,
date_getHours_impl,
date_getUTCHours_impl,
date_getMinutes_impl,
date_getUTCMinutes_impl,
date_getUTCSeconds_impl,
date_getUTCMilliseconds_impl,
date_getTimezoneOffset_impl,
date_toGMTString_impl,
date_toISOString_impl,
date_toLocaleString_impl,
date_toLocaleDateString_impl,
date_toLocaleTimeString_impl,
date_toLocaleFormat_impl,
date_toTimeString_impl,
date_toDateString_impl,
date_toSource_impl,
date_toString_impl,
date_valueOf_impl
};
JS_FRIEND_API(bool)
js::IsReadOnlyDateMethod(IsAcceptableThis test, NativeImpl method)
{
/* Avoid a linear search in the common case by checking the |this| test. */
if (test != IsDate)
return false;
/* Linear search, comparing function pointers. */
unsigned max = sizeof(sReadOnlyDateMethods) / sizeof(sReadOnlyDateMethods[0]);
for (unsigned i = 0; i < max; ++i) {
if (method == sReadOnlyDateMethods[i])
return true;
}
return false;
}

6
js/src/jsfriendapi.h
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@ -1549,6 +1549,12 @@ IdToJsval(jsid id)
return IdToValue(id);
}
extern JS_FRIEND_API(bool)
IsReadOnlyDateMethod(JS::IsAcceptableThis test, JS::NativeImpl method);
extern JS_FRIEND_API(bool)
IsTypedArrayThisCheck(JS::IsAcceptableThis test);
} /* namespace js */
#endif /* jsfriendapi_h___ */

17
js/src/jstypedarray.cpp
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@ -3424,6 +3424,23 @@ Class TypedArray::protoClasses[TYPE_MAX] = {
IMPL_TYPED_ARRAY_PROTO_CLASS(Uint8ClampedArray)
};
#define CHECK(t, a) { if (t == a::IsThisClass) return true; }
JS_FRIEND_API(bool)
js::IsTypedArrayThisCheck(JS::IsAcceptableThis test)
{
CHECK(test, Int8Array);
CHECK(test, Uint8Array);
CHECK(test, Int16Array);
CHECK(test, Uint16Array);
CHECK(test, Int32Array);
CHECK(test, Uint32Array);
CHECK(test, Float32Array);
CHECK(test, Float64Array);
CHECK(test, Uint8ClampedArray);
return false;
}
#undef CHECK
static JSObject *
InitArrayBufferClass(JSContext *cx)
{