#include "config.h"
#include "StringConstructor.h"
+#include "Error.h"
+#include "Executable.h"
+#include "JITCode.h"
#include "JSFunction.h"
#include "JSGlobalObject.h"
-#include "PrototypeFunction.h"
+#include "JSCInlines.h"
#include "StringPrototype.h"
namespace JSC {
-static NEVER_INLINE JSValue stringFromCharCodeSlowCase(ExecState* exec, const ArgList& args)
+static EncodedJSValue JSC_HOST_CALL stringFromCharCode(ExecState*);
+static EncodedJSValue JSC_HOST_CALL stringFromCodePoint(ExecState*);
+
+}
+
+#include "StringConstructor.lut.h"
+
+namespace JSC {
+
+const ClassInfo StringConstructor::s_info = { "Function", &InternalFunction::s_info, &stringConstructorTable, CREATE_METHOD_TABLE(StringConstructor) };
+
+/* Source for StringConstructor.lut.h
+@begin stringConstructorTable
+ fromCharCode stringFromCharCode DontEnum|Function 1
+ fromCodePoint stringFromCodePoint DontEnum|Function 1
+ raw stringRaw DontEnum|Function 1
+@end
+*/
+
+STATIC_ASSERT_IS_TRIVIALLY_DESTRUCTIBLE(StringConstructor);
+
+StringConstructor::StringConstructor(VM& vm, Structure* structure)
+ : InternalFunction(vm, structure)
+{
+}
+
+void StringConstructor::finishCreation(VM& vm, StringPrototype* stringPrototype)
{
- UChar* buf = static_cast<UChar*>(fastMalloc(args.size() * sizeof(UChar)));
- UChar* p = buf;
- ArgList::const_iterator end = args.end();
- for (ArgList::const_iterator it = args.begin(); it != end; ++it)
- *p++ = static_cast<UChar>((*it).toUInt32(exec));
- return jsString(exec, UString(buf, p - buf, false));
+ Base::finishCreation(vm, stringPrototype->classInfo()->className);
+ putDirectWithoutTransition(vm, vm.propertyNames->prototype, stringPrototype, ReadOnly | DontEnum | DontDelete);
+ putDirectWithoutTransition(vm, vm.propertyNames->length, jsNumber(1), ReadOnly | DontEnum | DontDelete);
}
-static JSValue JSC_HOST_CALL stringFromCharCode(ExecState* exec, JSObject*, JSValue, const ArgList& args)
+bool StringConstructor::getOwnPropertySlot(JSObject* object, ExecState* exec, PropertyName propertyName, PropertySlot &slot)
{
- if (LIKELY(args.size() == 1))
- return jsSingleCharacterString(exec, args.at(0).toUInt32(exec));
- return stringFromCharCodeSlowCase(exec, args);
+ return getStaticFunctionSlot<InternalFunction>(exec, stringConstructorTable, jsCast<StringConstructor*>(object), propertyName, slot);
}
-ASSERT_CLASS_FITS_IN_CELL(StringConstructor);
+// ------------------------------ Functions --------------------------------
-StringConstructor::StringConstructor(ExecState* exec, PassRefPtr<Structure> structure, Structure* prototypeFunctionStructure, StringPrototype* stringPrototype)
- : InternalFunction(&exec->globalData(), structure, Identifier(exec, stringPrototype->classInfo()->className))
+static NEVER_INLINE JSValue stringFromCharCodeSlowCase(ExecState* exec)
{
- // ECMA 15.5.3.1 String.prototype
- putDirectWithoutTransition(exec->propertyNames().prototype, stringPrototype, ReadOnly | DontEnum | DontDelete);
+ unsigned length = exec->argumentCount();
+ UChar* buf;
+ PassRefPtr<StringImpl> impl = StringImpl::createUninitialized(length, buf);
+ for (unsigned i = 0; i < length; ++i)
+ buf[i] = static_cast<UChar>(exec->uncheckedArgument(i).toUInt32(exec));
+ return jsString(exec, impl);
+}
- // ECMA 15.5.3.2 fromCharCode()
- putDirectFunctionWithoutTransition(exec, new (exec) NativeFunctionWrapper(exec, prototypeFunctionStructure, 1, exec->propertyNames().fromCharCode, stringFromCharCode), DontEnum);
+static EncodedJSValue JSC_HOST_CALL stringFromCharCode(ExecState* exec)
+{
+ if (LIKELY(exec->argumentCount() == 1))
+ return JSValue::encode(jsSingleCharacterString(exec, exec->uncheckedArgument(0).toUInt32(exec)));
+ return JSValue::encode(stringFromCharCodeSlowCase(exec));
+}
- // no. of arguments for constructor
- putDirectWithoutTransition(exec->propertyNames().length, jsNumber(exec, 1), ReadOnly | DontEnum | DontDelete);
+JSCell* JSC_HOST_CALL stringFromCharCode(ExecState* exec, int32_t arg)
+{
+ return jsSingleCharacterString(exec, arg);
+}
+
+static EncodedJSValue JSC_HOST_CALL stringFromCodePoint(ExecState* exec)
+{
+ unsigned length = exec->argumentCount();
+ StringBuilder builder;
+ builder.reserveCapacity(length);
+
+ for (unsigned i = 0; i < length; ++i) {
+ double codePointAsDouble = exec->uncheckedArgument(i).toNumber(exec);
+ if (exec->hadException())
+ return JSValue::encode(jsUndefined());
+
+ uint32_t codePoint = static_cast<uint32_t>(codePointAsDouble);
+
+ if (codePoint != codePointAsDouble || codePoint > UCHAR_MAX_VALUE)
+ return throwVMError(exec, createRangeError(exec, ASCIILiteral("Arguments contain a value that is out of range of code points")));
+
+ if (U_IS_BMP(codePoint))
+ builder.append(static_cast<UChar>(codePoint));
+ else {
+ builder.append(U16_LEAD(codePoint));
+ builder.append(U16_TRAIL(codePoint));
+ }
+ }
+
+ return JSValue::encode(jsString(exec, builder.toString()));
}
-// ECMA 15.5.2
-static JSObject* constructWithStringConstructor(ExecState* exec, JSObject*, const ArgList& args)
+static EncodedJSValue JSC_HOST_CALL constructWithStringConstructor(ExecState* exec)
{
- if (args.isEmpty())
- return new (exec) StringObject(exec, exec->lexicalGlobalObject()->stringObjectStructure());
- return new (exec) StringObject(exec, exec->lexicalGlobalObject()->stringObjectStructure(), args.at(0).toString(exec));
+ JSGlobalObject* globalObject = asInternalFunction(exec->callee())->globalObject();
+ VM& vm = exec->vm();
+
+ if (!exec->argumentCount())
+ return JSValue::encode(StringObject::create(vm, globalObject->stringObjectStructure()));
+
+ return JSValue::encode(StringObject::create(vm, globalObject->stringObjectStructure(), exec->uncheckedArgument(0).toString(exec)));
}
-ConstructType StringConstructor::getConstructData(ConstructData& constructData)
+ConstructType StringConstructor::getConstructData(JSCell*, ConstructData& constructData)
{
constructData.native.function = constructWithStringConstructor;
return ConstructTypeHost;
}
-// ECMA 15.5.1
-static JSValue JSC_HOST_CALL callStringConstructor(ExecState* exec, JSObject*, JSValue, const ArgList& args)
+JSCell* stringConstructor(ExecState* exec, JSValue argument)
+{
+ if (argument.isSymbol())
+ return jsNontrivialString(exec, asSymbol(argument)->descriptiveString());
+ return argument.toString(exec);
+}
+
+static EncodedJSValue JSC_HOST_CALL callStringConstructor(ExecState* exec)
{
- if (args.isEmpty())
- return jsEmptyString(exec);
- return jsString(exec, args.at(0).toString(exec));
+ if (!exec->argumentCount())
+ return JSValue::encode(jsEmptyString(exec));
+ return JSValue::encode(stringConstructor(exec, exec->uncheckedArgument(0)));
}
-CallType StringConstructor::getCallData(CallData& callData)
+CallType StringConstructor::getCallData(JSCell*, CallData& callData)
{
callData.native.function = callStringConstructor;
return CallTypeHost;
projects / apple / javascriptcore.git / blobdiff