WeakMapPrototype.cpp [plain text]
#include "config.h"
#include "WeakMapPrototype.h"
#include "JSCJSValueInlines.h"
#include "JSWeakMap.h"
#include "StructureInlines.h"
#include "WeakMapData.h"
namespace JSC {
const ClassInfo WeakMapPrototype::s_info = { "WeakMap", &Base::s_info, 0, 0, CREATE_METHOD_TABLE(WeakMapPrototype) };
static EncodedJSValue JSC_HOST_CALL protoFuncWeakMapClear(ExecState*);
static EncodedJSValue JSC_HOST_CALL protoFuncWeakMapDelete(ExecState*);
static EncodedJSValue JSC_HOST_CALL protoFuncWeakMapGet(ExecState*);
static EncodedJSValue JSC_HOST_CALL protoFuncWeakMapHas(ExecState*);
static EncodedJSValue JSC_HOST_CALL protoFuncWeakMapSet(ExecState*);
void WeakMapPrototype::finishCreation(VM& vm, JSGlobalObject* globalObject)
{
Base::finishCreation(vm);
ASSERT(inherits(info()));
vm.prototypeMap.addPrototype(this);
JSC_NATIVE_FUNCTION(vm.propertyNames->clear, protoFuncWeakMapClear, DontEnum, 0);
JSC_NATIVE_FUNCTION(vm.propertyNames->deleteKeyword, protoFuncWeakMapDelete, DontEnum, 1);
JSC_NATIVE_FUNCTION(vm.propertyNames->get, protoFuncWeakMapGet, DontEnum, 1);
JSC_NATIVE_FUNCTION(vm.propertyNames->has, protoFuncWeakMapHas, DontEnum, 1);
JSC_NATIVE_FUNCTION(vm.propertyNames->set, protoFuncWeakMapSet, DontEnum, 2);
}
static WeakMapData* getWeakMapData(CallFrame* callFrame, JSValue value)
{
if (!value.isObject()) {
throwTypeError(callFrame, WTF::ASCIILiteral("Called WeakMap function on non-object"));
return 0;
}
if (JSWeakMap* weakMap = jsDynamicCast<JSWeakMap*>(value))
return weakMap->weakMapData();
throwTypeError(callFrame, WTF::ASCIILiteral("Called WeakMap function on a non-WeakMap object"));
return 0;
}
EncodedJSValue JSC_HOST_CALL protoFuncWeakMapClear(CallFrame* callFrame)
{
WeakMapData* map = getWeakMapData(callFrame, callFrame->thisValue());
if (!map)
return JSValue::encode(jsUndefined());
map->clear();
return JSValue::encode(jsUndefined());
}
EncodedJSValue JSC_HOST_CALL protoFuncWeakMapDelete(CallFrame* callFrame)
{
WeakMapData* map = getWeakMapData(callFrame, callFrame->thisValue());
if (!map)
return JSValue::encode(jsUndefined());
JSValue key = callFrame->argument(0);
if (!key.isObject())
return JSValue::encode(throwTypeError(callFrame, WTF::ASCIILiteral("A WeakMap cannot have a non-object key")));
return JSValue::encode(jsBoolean(map->remove(asObject(key))));
}
EncodedJSValue JSC_HOST_CALL protoFuncWeakMapGet(CallFrame* callFrame)
{
WeakMapData* map = getWeakMapData(callFrame, callFrame->thisValue());
if (!map)
return JSValue::encode(jsUndefined());
JSValue key = callFrame->argument(0);
if (!key.isObject())
return JSValue::encode(throwTypeError(callFrame, WTF::ASCIILiteral("A WeakMap cannot have a non-object key")));
return JSValue::encode(map->get(asObject(key)));
}
EncodedJSValue JSC_HOST_CALL protoFuncWeakMapHas(CallFrame* callFrame)
{
WeakMapData* map = getWeakMapData(callFrame, callFrame->thisValue());
if (!map)
return JSValue::encode(jsUndefined());
JSValue key = callFrame->argument(0);
if (!key.isObject())
return JSValue::encode(throwTypeError(callFrame, WTF::ASCIILiteral("A WeakMap cannot have a non-object key")));
return JSValue::encode(jsBoolean(map->contains(asObject(key))));
}
EncodedJSValue JSC_HOST_CALL protoFuncWeakMapSet(CallFrame* callFrame)
{
WeakMapData* map = getWeakMapData(callFrame, callFrame->thisValue());
if (!map)
return JSValue::encode(jsUndefined());
JSValue key = callFrame->argument(0);
if (!key.isObject())
return JSValue::encode(throwTypeError(callFrame, WTF::ASCIILiteral("Attempted to set a non-object key in a WeakMap")));
map->set(callFrame->vm(), asObject(key), callFrame->argument(1));
return JSValue::encode(callFrame->thisValue());
}
}