/[jscoverage]/trunk/js/jsbool.cpp
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Annotation of /trunk/js/jsbool.cpp

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Revision 332 - (hide annotations)
Thu Oct 23 19:03:33 2008 UTC (11 years, 11 months ago) by siliconforks
File size: 5457 byte(s)
Add SpiderMonkey from Firefox 3.1b1.

The following directories and files were removed:
correct/, correct.js
liveconnect/
nanojit/
t/
v8/
vprof/
xpconnect/
all JavaScript files (Y.js, call.js, if.js, math-partial-sums.js, md5.js, perfect.js, trace-test.js, trace.js)


1 siliconforks 332 /* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
2     *
3     * ***** BEGIN LICENSE BLOCK *****
4     * Version: MPL 1.1/GPL 2.0/LGPL 2.1
5     *
6     * The contents of this file are subject to the Mozilla Public License Version
7     * 1.1 (the "License"); you may not use this file except in compliance with
8     * the License. You may obtain a copy of the License at
9     * http://www.mozilla.org/MPL/
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11     * Software distributed under the License is distributed on an "AS IS" basis,
12     * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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16     * The Original Code is Mozilla Communicator client code, released
17     * March 31, 1998.
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19     * The Initial Developer of the Original Code is
20     * Netscape Communications Corporation.
21     * Portions created by the Initial Developer are Copyright (C) 1998
22     * the Initial Developer. All Rights Reserved.
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24     * Contributor(s):
25     *
26     * Alternatively, the contents of this file may be used under the terms of
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37     *
38     * ***** END LICENSE BLOCK ***** */
39    
40     /*
41     * JS boolean implementation.
42     */
43     #include "jsstddef.h"
44     #include "jstypes.h"
45     #include "jsutil.h" /* Added by JSIFY */
46     #include "jsapi.h"
47     #include "jsatom.h"
48     #include "jsbool.h"
49     #include "jscntxt.h"
50     #include "jsversion.h"
51     #include "jsinterp.h"
52     #include "jslock.h"
53     #include "jsnum.h"
54     #include "jsobj.h"
55     #include "jsstr.h"
56    
57     /* Check pseudo-booleans values. */
58     JS_STATIC_ASSERT(JSVAL_VOID == JSVAL_TRUE + JSVAL_ALIGN);
59     JS_STATIC_ASSERT(JSVAL_HOLE == JSVAL_VOID + JSVAL_ALIGN);
60     JS_STATIC_ASSERT(JSVAL_ARETURN == JSVAL_HOLE + JSVAL_ALIGN);
61    
62     JSClass js_BooleanClass = {
63     "Boolean",
64     JSCLASS_HAS_PRIVATE | JSCLASS_HAS_CACHED_PROTO(JSProto_Boolean),
65     JS_PropertyStub, JS_PropertyStub, JS_PropertyStub, JS_PropertyStub,
66     JS_EnumerateStub, JS_ResolveStub, JS_ConvertStub, JS_FinalizeStub,
67     JSCLASS_NO_OPTIONAL_MEMBERS
68     };
69    
70     #if JS_HAS_TOSOURCE
71     #include "jsprf.h"
72    
73     static JSBool
74     bool_toSource(JSContext *cx, uintN argc, jsval *vp)
75     {
76     jsval v;
77     char buf[32];
78     JSString *str;
79    
80     if (!js_GetPrimitiveThis(cx, vp, &js_BooleanClass, &v))
81     return JS_FALSE;
82     JS_ASSERT(JSVAL_IS_BOOLEAN(v));
83     JS_snprintf(buf, sizeof buf, "(new %s(%s))",
84     js_BooleanClass.name,
85     JS_BOOLEAN_STR(JSVAL_TO_BOOLEAN(v)));
86     str = JS_NewStringCopyZ(cx, buf);
87     if (!str)
88     return JS_FALSE;
89     *vp = STRING_TO_JSVAL(str);
90     return JS_TRUE;
91     }
92     #endif
93    
94     static JSBool
95     bool_toString(JSContext *cx, uintN argc, jsval *vp)
96     {
97     jsval v;
98     JSAtom *atom;
99     JSString *str;
100    
101     if (!js_GetPrimitiveThis(cx, vp, &js_BooleanClass, &v))
102     return JS_FALSE;
103     JS_ASSERT(JSVAL_IS_BOOLEAN(v));
104     atom = cx->runtime->atomState.booleanAtoms[JSVAL_TO_BOOLEAN(v) ? 1 : 0];
105     str = ATOM_TO_STRING(atom);
106     if (!str)
107     return JS_FALSE;
108     *vp = STRING_TO_JSVAL(str);
109     return JS_TRUE;
110     }
111    
112     static JSBool
113     bool_valueOf(JSContext *cx, uintN argc, jsval *vp)
114     {
115     return js_GetPrimitiveThis(cx, vp, &js_BooleanClass, vp);
116     }
117    
118     static JSFunctionSpec boolean_methods[] = {
119     #if JS_HAS_TOSOURCE
120     JS_FN(js_toSource_str, bool_toSource, 0, JSFUN_THISP_BOOLEAN),
121     #endif
122     JS_FN(js_toString_str, bool_toString, 0, JSFUN_THISP_BOOLEAN),
123     JS_FN(js_valueOf_str, bool_valueOf, 0, JSFUN_THISP_BOOLEAN),
124     JS_FS_END
125     };
126    
127     static JSBool
128     Boolean(JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval)
129     {
130     jsval bval;
131    
132     bval = (argc != 0)
133     ? BOOLEAN_TO_JSVAL(js_ValueToBoolean(argv[0]))
134     : JSVAL_FALSE;
135     if (!(cx->fp->flags & JSFRAME_CONSTRUCTING)) {
136     *rval = bval;
137     return JS_TRUE;
138     }
139     STOBJ_SET_SLOT(obj, JSSLOT_PRIVATE, bval);
140     return JS_TRUE;
141     }
142    
143     JSObject *
144     js_InitBooleanClass(JSContext *cx, JSObject *obj)
145     {
146     JSObject *proto;
147    
148     proto = JS_InitClass(cx, obj, NULL, &js_BooleanClass, Boolean, 1,
149     NULL, boolean_methods, NULL, NULL);
150     if (!proto)
151     return NULL;
152     STOBJ_SET_SLOT(proto, JSSLOT_PRIVATE, JSVAL_FALSE);
153     return proto;
154     }
155    
156     JSString *
157     js_BooleanToString(JSContext *cx, JSBool b)
158     {
159     return ATOM_TO_STRING(cx->runtime->atomState.booleanAtoms[b ? 1 : 0]);
160     }
161    
162     JSBool
163     js_ValueToBoolean(jsval v)
164     {
165     if (JSVAL_IS_NULL(v) || JSVAL_IS_VOID(v))
166     return JS_FALSE;
167     if (JSVAL_IS_OBJECT(v))
168     return JS_TRUE;
169     if (JSVAL_IS_STRING(v))
170     return JSSTRING_LENGTH(JSVAL_TO_STRING(v)) != 0;
171     if (JSVAL_IS_INT(v))
172     return JSVAL_TO_INT(v) != 0;
173     if (JSVAL_IS_DOUBLE(v)) {
174     jsdouble d;
175    
176     d = *JSVAL_TO_DOUBLE(v);
177     return !JSDOUBLE_IS_NaN(d) && d != 0;
178     }
179     JS_ASSERT(JSVAL_IS_BOOLEAN(v));
180     return JSVAL_TO_BOOLEAN(v);
181     }

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