| /* |
| * Copyright (C) 1999-2001 Harri Porten (porten@kde.org) |
| * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008 Apple Inc. All rights reserved. |
| * |
| * This library is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU Lesser General Public |
| * License as published by the Free Software Foundation; either |
| * version 2 of the License, or (at your option) any later version. |
| * |
| * This library is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * Lesser General Public License for more details. |
| * |
| * You should have received a copy of the GNU Lesser General Public |
| * License along with this library; if not, write to the Free Software |
| * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
| * |
| */ |
| |
| #include "config.h" |
| #include "FunctionPrototype.h" |
| |
| #include "Arguments.h" |
| #include "JSArray.h" |
| #include "JSFunction.h" |
| #include "JSString.h" |
| #include "Interpreter.h" |
| #include "PrototypeFunction.h" |
| |
| namespace JSC { |
| |
| ASSERT_CLASS_FITS_IN_CELL(FunctionPrototype); |
| |
| static JSValuePtr functionProtoFuncToString(ExecState*, JSObject*, JSValuePtr, const ArgList&); |
| static JSValuePtr functionProtoFuncApply(ExecState*, JSObject*, JSValuePtr, const ArgList&); |
| static JSValuePtr functionProtoFuncCall(ExecState*, JSObject*, JSValuePtr, const ArgList&); |
| |
| FunctionPrototype::FunctionPrototype(ExecState* exec, PassRefPtr<Structure> structure) |
| : InternalFunction(&exec->globalData(), structure, exec->propertyNames().nullIdentifier) |
| { |
| putDirectWithoutTransition(exec->propertyNames().length, jsNumber(exec, 0), DontDelete | ReadOnly | DontEnum); |
| } |
| |
| void FunctionPrototype::addFunctionProperties(ExecState* exec, Structure* prototypeFunctionStructure) |
| { |
| putDirectFunctionWithoutTransition(exec, new (exec) PrototypeFunction(exec, prototypeFunctionStructure, 0, exec->propertyNames().toString, functionProtoFuncToString), DontEnum); |
| putDirectFunctionWithoutTransition(exec, new (exec) PrototypeFunction(exec, prototypeFunctionStructure, 2, exec->propertyNames().apply, functionProtoFuncApply), DontEnum); |
| putDirectFunctionWithoutTransition(exec, new (exec) PrototypeFunction(exec, prototypeFunctionStructure, 1, exec->propertyNames().call, functionProtoFuncCall), DontEnum); |
| } |
| |
| static JSValuePtr callFunctionPrototype(ExecState*, JSObject*, JSValuePtr, const ArgList&) |
| { |
| return jsUndefined(); |
| } |
| |
| // ECMA 15.3.4 |
| CallType FunctionPrototype::getCallData(CallData& callData) |
| { |
| callData.native.function = callFunctionPrototype; |
| return CallTypeHost; |
| } |
| |
| // Functions |
| |
| JSValuePtr functionProtoFuncToString(ExecState* exec, JSObject*, JSValuePtr thisValue, const ArgList&) |
| { |
| if (thisValue.isObject(&JSFunction::info)) { |
| JSFunction* function = asFunction(thisValue); |
| return jsString(exec, "function " + function->name(&exec->globalData()) + "(" + function->body()->paramString() + ") " + function->body()->toSourceString()); |
| } |
| |
| if (thisValue.isObject(&InternalFunction::info)) { |
| InternalFunction* function = asInternalFunction(thisValue); |
| return jsString(exec, "function " + function->name(&exec->globalData()) + "() {\n [native code]\n}"); |
| } |
| |
| return throwError(exec, TypeError); |
| } |
| |
| JSValuePtr functionProtoFuncApply(ExecState* exec, JSObject*, JSValuePtr thisValue, const ArgList& args) |
| { |
| CallData callData; |
| CallType callType = thisValue.getCallData(callData); |
| if (callType == CallTypeNone) |
| return throwError(exec, TypeError); |
| |
| JSValuePtr thisArg = args.at(exec, 0); |
| JSValuePtr argArray = args.at(exec, 1); |
| |
| JSValuePtr applyThis; |
| if (thisArg.isUndefinedOrNull()) |
| applyThis = exec->globalThisValue(); |
| else |
| applyThis = thisArg.toObject(exec); |
| |
| ArgList applyArgs; |
| if (!argArray.isUndefinedOrNull()) { |
| if (!argArray.isObject()) |
| return throwError(exec, TypeError); |
| if (asObject(argArray)->classInfo() == &Arguments::info) |
| asArguments(argArray)->fillArgList(exec, applyArgs); |
| else if (exec->interpreter()->isJSArray(argArray)) |
| asArray(argArray)->fillArgList(exec, applyArgs); |
| else if (asObject(argArray)->inherits(&JSArray::info)) { |
| unsigned length = asArray(argArray)->get(exec, exec->propertyNames().length).toUInt32(exec); |
| for (unsigned i = 0; i < length; ++i) |
| applyArgs.append(asArray(argArray)->get(exec, i)); |
| } else |
| return throwError(exec, TypeError); |
| } |
| |
| return call(exec, thisValue, callType, callData, applyThis, applyArgs); |
| } |
| |
| JSValuePtr functionProtoFuncCall(ExecState* exec, JSObject*, JSValuePtr thisValue, const ArgList& args) |
| { |
| CallData callData; |
| CallType callType = thisValue.getCallData(callData); |
| if (callType == CallTypeNone) |
| return throwError(exec, TypeError); |
| |
| JSValuePtr thisArg = args.at(exec, 0); |
| |
| JSObject* callThis; |
| if (thisArg.isUndefinedOrNull()) |
| callThis = exec->globalThisValue(); |
| else |
| callThis = thisArg.toObject(exec); |
| |
| ArgList argsTail; |
| args.getSlice(1, argsTail); |
| return call(exec, thisValue, callType, callData, callThis, argsTail); |
| } |
| |
| } // namespace JSC |