1 | // -*- c-basic-offset: 2 -*- |
2 | /* |
3 | * This file is part of the KDE libraries |
4 | * Copyright (C) 1999-2000 Harri Porten (porten@kde.org) |
5 | * Copyright (C) 2003 Apple Computer, Inc. |
6 | * |
7 | * This library is free software; you can redistribute it and/or |
8 | * modify it under the terms of the GNU Lesser General Public |
9 | * License as published by the Free Software Foundation; either |
10 | * version 2 of the License, or (at your option) any later version. |
11 | * |
12 | * This library is distributed in the hope that it will be useful, |
13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
15 | * Lesser General Public License for more details. |
16 | * |
17 | * You should have received a copy of the GNU Lesser General Public |
18 | * License along with this library; if not, write to the Free Software |
19 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
20 | * |
21 | */ |
22 | |
23 | #include "bool_object.h" |
24 | #include <config-kjs.h> |
25 | |
26 | #include "operations.h" |
27 | #include "error_object.h" |
28 | |
29 | using namespace KJS; |
30 | |
31 | // ------------------------------ BooleanInstance --------------------------- |
32 | |
33 | const ClassInfo BooleanInstance::info = {"Boolean" , 0, 0, 0}; |
34 | |
35 | BooleanInstance::BooleanInstance(JSObject *proto) |
36 | : JSWrapperObject(proto) |
37 | { |
38 | } |
39 | |
40 | JSObject* BooleanInstance::valueClone(Interpreter* targetCtx) const |
41 | { |
42 | BooleanInstance* copy = new BooleanInstance(targetCtx->builtinBooleanPrototype()); |
43 | copy->setInternalValue(internalValue()); |
44 | return copy; |
45 | } |
46 | |
47 | // ------------------------------ BooleanPrototype -------------------------- |
48 | |
49 | // ECMA 15.6.4 |
50 | |
51 | BooleanPrototype::BooleanPrototype(ExecState* exec, ObjectPrototype* objectProto, FunctionPrototype* funcProto) |
52 | : BooleanInstance(objectProto) |
53 | { |
54 | // The constructor will be added later by Interpreter::Interpreter() |
55 | |
56 | putDirectFunction(new BooleanProtoFunc(exec, funcProto, BooleanProtoFunc::ToString, 0, exec->propertyNames().toString), DontEnum); |
57 | putDirectFunction(new BooleanProtoFunc(exec, funcProto, BooleanProtoFunc::ValueOf, 0, exec->propertyNames().valueOf), DontEnum); |
58 | setInternalValue(jsBoolean(false)); |
59 | } |
60 | |
61 | |
62 | // ------------------------------ BooleanProtoFunc -------------------------- |
63 | |
64 | BooleanProtoFunc::BooleanProtoFunc(ExecState* exec, FunctionPrototype* funcProto, int i, int len, const Identifier& name) |
65 | : InternalFunctionImp(funcProto, name) |
66 | , id(i) |
67 | { |
68 | putDirect(exec->propertyNames().length, len, DontDelete|ReadOnly|DontEnum); |
69 | } |
70 | |
71 | |
72 | // ECMA 15.6.4.2 + 15.6.4.3 |
73 | JSValue *BooleanProtoFunc::callAsFunction(ExecState* exec, JSObject *thisObj, const List &/*args*/) |
74 | { |
75 | // no generic function. "this" has to be a Boolean object |
76 | if (!thisObj->inherits(&BooleanInstance::info)) |
77 | return throwError(exec, TypeError); |
78 | |
79 | // execute "toString()" or "valueOf()", respectively |
80 | |
81 | JSValue *v = static_cast<BooleanInstance*>(thisObj)->internalValue(); |
82 | assert(v); |
83 | |
84 | if (id == ToString) |
85 | return jsString(v->toString(exec)); |
86 | return jsBoolean(v->toBoolean(exec)); /* TODO: optimize for bool case */ |
87 | } |
88 | |
89 | // ------------------------------ BooleanObjectImp ----------------------------- |
90 | |
91 | |
92 | BooleanObjectImp::BooleanObjectImp(ExecState* exec, FunctionPrototype* funcProto, BooleanPrototype* booleanProto) |
93 | : InternalFunctionImp(funcProto) |
94 | { |
95 | putDirect(exec->propertyNames().prototype, booleanProto, DontEnum|DontDelete|ReadOnly); |
96 | |
97 | // no. of arguments for constructor |
98 | putDirect(exec->propertyNames().length, jsNumber(1), ReadOnly|DontDelete|DontEnum); |
99 | } |
100 | |
101 | |
102 | bool BooleanObjectImp::implementsConstruct() const |
103 | { |
104 | return true; |
105 | } |
106 | |
107 | // ECMA 15.6.2 |
108 | JSObject *BooleanObjectImp::construct(ExecState *exec, const List &args) |
109 | { |
110 | BooleanInstance *obj(new BooleanInstance(exec->lexicalInterpreter()->builtinBooleanPrototype())); |
111 | |
112 | bool b; |
113 | if (args.size() > 0) |
114 | b = args.begin()->toBoolean(exec); |
115 | else |
116 | b = false; |
117 | |
118 | obj->setInternalValue(jsBoolean(b)); |
119 | |
120 | return obj; |
121 | } |
122 | |
123 | // ECMA 15.6.1 |
124 | JSValue *BooleanObjectImp::callAsFunction(ExecState *exec, JSObject * /*thisObj*/, const List &args) |
125 | { |
126 | if (args.isEmpty()) |
127 | return jsBoolean(false); |
128 | else |
129 | return jsBoolean(args[0]->toBoolean(exec)); /* TODO: optimize for bool case */ |
130 | } |
131 | |
132 | |