/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
*
* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is Mozilla Communicator client code, released
* March 31, 1998.
*
* The Initial Developer of the Original Code is
* Netscape Communications Corporation.
* Portions created by the Initial Developer are Copyright (C) 1998
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the terms of
* either of the GNU General Public License Version 2 or later (the "GPL"),
* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
/*
* JS boolean implementation.
*/
#include "jsstddef.h"
#include "jstypes.h"
#include "jsutil.h" /* Added by JSIFY */
#include "jsapi.h"
#include "jsatom.h"
#include "jsbool.h"
#include "jscntxt.h"
#include "jsconfig.h"
#include "jsinterp.h"
#include "jslock.h"
#include "jsnum.h"
#include "jsobj.h"
#include "jsstr.h"
JSClass js_BooleanClass = {
"Boolean",
JSCLASS_HAS_PRIVATE,
JS_PropertyStub, JS_PropertyStub, JS_PropertyStub, JS_PropertyStub,
JS_EnumerateStub, JS_ResolveStub, JS_ConvertStub, JS_FinalizeStub,
JSCLASS_NO_OPTIONAL_MEMBERS
};
#if JS_HAS_TOSOURCE
#include "jsprf.h"
static JSBool
bool_toSource(JSContext *cx, JSObject *obj, uintN argc, jsval *argv,
jsval *rval)
{
jsval v;
char buf[32];
JSString *str;
if (!JS_InstanceOf(cx, obj, &js_BooleanClass, argv))
return JS_FALSE;
v = OBJ_GET_SLOT(cx, obj, JSSLOT_PRIVATE);
if (!JSVAL_IS_BOOLEAN(v))
return js_obj_toSource(cx, obj, argc, argv, rval);
JS_snprintf(buf, sizeof buf, "(new %s(%s))",
js_BooleanClass.name,
js_boolean_str[JSVAL_TO_BOOLEAN(v) ? 1 : 0]);
str = JS_NewStringCopyZ(cx, buf);
if (!str)
return JS_FALSE;
*rval = STRING_TO_JSVAL(str);
return JS_TRUE;
}
#endif
static JSBool
bool_toString(JSContext *cx, JSObject *obj, uintN argc, jsval *argv,
jsval *rval)
{
jsval v;
JSAtom *atom;
JSString *str;
if (!JS_InstanceOf(cx, obj, &js_BooleanClass, argv))
return JS_FALSE;
v = OBJ_GET_SLOT(cx, obj, JSSLOT_PRIVATE);
if (!JSVAL_IS_BOOLEAN(v))
return js_obj_toString(cx, obj, argc, argv, rval);
atom = cx->runtime->atomState.booleanAtoms[JSVAL_TO_BOOLEAN(v) ? 1 : 0];
str = ATOM_TO_STRING(atom);
if (!str)
return JS_FALSE;
*rval = STRING_TO_JSVAL(str);
return JS_TRUE;
}
static JSBool
bool_valueOf(JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval)
{
if (!JS_InstanceOf(cx, obj, &js_BooleanClass, argv))
return JS_FALSE;
*rval = OBJ_GET_SLOT(cx, obj, JSSLOT_PRIVATE);
return JS_TRUE;
}
static JSFunctionSpec boolean_methods[] = {
#if JS_HAS_TOSOURCE
{js_toSource_str, bool_toSource, 0,0,0},
#endif
{js_toString_str, bool_toString, 0,0,0},
{js_valueOf_str, bool_valueOf, 0,0,0},
{0,0,0,0,0}
};
static JSBool
Boolean(JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval)
{
JSBool b;
jsval bval;
if (argc != 0) {
if (!js_ValueToBoolean(cx, argv[0], &b))
return JS_FALSE;
bval = BOOLEAN_TO_JSVAL(b);
} else {
bval = JSVAL_FALSE;
}
if (!(cx->fp->flags & JSFRAME_CONSTRUCTING)) {
*rval = bval;
return JS_TRUE;
}
OBJ_SET_SLOT(cx, obj, JSSLOT_PRIVATE, bval);
return JS_TRUE;
}
JSObject *
js_InitBooleanClass(JSContext *cx, JSObject *obj)
{
JSObject *proto;
proto = JS_InitClass(cx, obj, NULL, &js_BooleanClass, Boolean, 1,
NULL, boolean_methods, NULL, NULL);
if (!proto)
return NULL;
OBJ_SET_SLOT(cx, proto, JSSLOT_PRIVATE, JSVAL_FALSE);
return proto;
}
JSObject *
js_BooleanToObject(JSContext *cx, JSBool b)
{
JSObject *obj;
obj = js_NewObject(cx, &js_BooleanClass, NULL, NULL);
if (!obj)
return NULL;
OBJ_SET_SLOT(cx, obj, JSSLOT_PRIVATE, BOOLEAN_TO_JSVAL(b));
return obj;
}
JSString *
js_BooleanToString(JSContext *cx, JSBool b)
{
return ATOM_TO_STRING(cx->runtime->atomState.booleanAtoms[b ? 1 : 0]);
}
JSBool
js_ValueToBoolean(JSContext *cx, jsval v, JSBool *bp)
{
JSBool b;
jsdouble d;
if (JSVAL_IS_NULL(v) || JSVAL_IS_VOID(v)) {
b = JS_FALSE;
} else if (JSVAL_IS_OBJECT(v)) {
if (!JS_VERSION_IS_ECMA(cx)) {
if (!OBJ_DEFAULT_VALUE(cx, JSVAL_TO_OBJECT(v), JSTYPE_BOOLEAN, &v))
return JS_FALSE;
if (!JSVAL_IS_BOOLEAN(v))
v = JSVAL_TRUE; /* non-null object is true */
b = JSVAL_TO_BOOLEAN(v);
} else {
b = JS_TRUE;
}
} else if (JSVAL_IS_STRING(v)) {
b = JSSTRING_LENGTH(JSVAL_TO_STRING(v)) ? JS_TRUE : JS_FALSE;
} else if (JSVAL_IS_INT(v)) {
b = JSVAL_TO_INT(v) ? JS_TRUE : JS_FALSE;
} else if (JSVAL_IS_DOUBLE(v)) {
d = *JSVAL_TO_DOUBLE(v);
b = (!JSDOUBLE_IS_NaN(d) && d != 0) ? JS_TRUE : JS_FALSE;
} else {
JS_ASSERT(JSVAL_IS_BOOLEAN(v));
b = JSVAL_TO_BOOLEAN(v);
}
*bp = b;
return JS_TRUE;
}