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gecko/js/src/jsxml.c

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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
* vim: set ts=4 sw=4 et tw=78:
*
* ***** 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 SpiderMonkey E4X code, released August, 2004.
*
* 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 ***** */
#include "jsstddef.h"
#include "jsconfig.h"
#if JS_HAS_XML_SUPPORT
#include <math.h>
#include <stdlib.h>
#include <string.h>
#include "jstypes.h"
#include "jsbit.h"
#include "jsprf.h"
#include "jsutil.h"
#include "jsapi.h"
#include "jsarray.h"
#include "jsatom.h"
#include "jsbool.h"
#include "jscntxt.h"
#include "jsfun.h"
#include "jsgc.h"
#include "jsinterp.h"
#include "jslock.h"
#include "jsnum.h"
#include "jsobj.h"
#include "jsopcode.h"
#include "jsparse.h"
#include "jsscan.h"
#include "jsscope.h"
#include "jsscript.h"
#include "jsstr.h"
#include "jsxml.h"
#ifdef DEBUG
#include <string.h> /* for #ifdef DEBUG memset calls */
#endif
/*
* NOTES
* - in the js shell, you must use the -x command line option, or call
* options('xml') before compiling anything that uses XML literals
*
* TODO
* - XXXbe patrol
* - Fuse objects and their JSXML* private data into single GC-things
* - fix function::foo vs. x.(foo == 42) collision using proper namespacing
* - fix the !TCF_HAS_DEFXMLNS optimization in js_FoldConstants
* - JSCLASS_DOCUMENT_OBSERVER support -- live two-way binding to Gecko's DOM!
* - JS_TypeOfValue sure could use a cleaner interface to "types"
*/
#ifdef DEBUG_brendan
#define METERING 1
#endif
#ifdef METERING
static struct {
jsrefcount qname;
jsrefcount qnameobj;
jsrefcount liveqname;
jsrefcount liveqnameobj;
jsrefcount namespace;
jsrefcount namespaceobj;
jsrefcount livenamespace;
jsrefcount livenamespaceobj;
jsrefcount xml;
jsrefcount xmlobj;
jsrefcount livexml;
jsrefcount livexmlobj;
} xml_stats;
#define METER(x) JS_ATOMIC_INCREMENT(&(x))
#define UNMETER(x) JS_ATOMIC_DECREMENT(&(x))
#else
#define METER(x) /* nothing */
#define UNMETER(x) /* nothing */
#endif
/*
* Random utilities and global functions.
*/
const char js_isXMLName_str[] = "isXMLName";
const char js_XMLList_str[] = "XMLList";
const char js_localName_str[] = "localName";
const char js_xml_parent_str[] = "parent";
const char js_prefix_str[] = "prefix";
const char js_toXMLString_str[] = "toXMLString";
const char js_uri_str[] = "uri";
const char js_amp_entity_str[] = "&amp;";
const char js_gt_entity_str[] = "&gt;";
const char js_lt_entity_str[] = "&lt;";
const char js_quot_entity_str[] = "&quot;";
#define IS_EMPTY(str) (JSSTRING_LENGTH(str) == 0)
#define IS_STAR(str) (JSSTRING_LENGTH(str) == 1 && *JSSTRING_CHARS(str) == '*')
static JSBool
xml_isXMLName(JSContext *cx, JSObject *obj, uintN argc, jsval *argv,
jsval *rval)
{
*rval = BOOLEAN_TO_JSVAL(js_IsXMLName(cx, argv[0]));
return JS_TRUE;
}
/*
* Namespace class and library functions.
*/
enum namespace_tinyid {
NAMESPACE_PREFIX = -1,
NAMESPACE_URI = -2
};
static JSBool
namespace_getProperty(JSContext *cx, JSObject *obj, jsval id, jsval *vp)
{
JSXMLNamespace *ns;
if (!JSVAL_IS_INT(id))
return JS_TRUE;
ns = (JSXMLNamespace *)
JS_GetInstancePrivate(cx, obj, &js_NamespaceClass.base, NULL);
if (!ns)
return JS_TRUE;
switch (JSVAL_TO_INT(id)) {
case NAMESPACE_PREFIX:
*vp = ns->prefix ? STRING_TO_JSVAL(ns->prefix) : JSVAL_VOID;
break;
case NAMESPACE_URI:
*vp = STRING_TO_JSVAL(ns->uri);
break;
}
return JS_TRUE;
}
static void
namespace_finalize(JSContext *cx, JSObject *obj)
{
JSXMLNamespace *ns;
JSRuntime *rt;
ns = (JSXMLNamespace *) JS_GetPrivate(cx, obj);
if (!ns)
return;
JS_ASSERT(ns->object == obj);
ns->object = NULL;
UNMETER(xml_stats.livenamespaceobj);
rt = cx->runtime;
if (rt->functionNamespaceObject == obj)
rt->functionNamespaceObject = NULL;
}
static void
namespace_trace_vector(JSTracer *trc, JSXMLNamespace **vec,
uint32 len)
{
uint32 i;
JSXMLNamespace *ns;
for (i = 0; i < len; i++) {
ns = vec[i];
if (ns) {
JS_SET_TRACING_INDEX(trc, "namespace_vector", i);
JS_CallTracer(trc, ns, JSTRACE_NAMESPACE);
}
}
}
static void
namespace_trace(JSTracer *trc, JSObject *obj)
{
JSXMLNamespace *ns;
ns = (JSXMLNamespace *) JS_GetPrivate(trc->context, obj);
if (ns)
JS_CALL_TRACER(trc, ns, JSTRACE_NAMESPACE, "private");
}
static JSBool
namespace_equality(JSContext *cx, JSObject *obj, jsval v, JSBool *bp)
{
JSXMLNamespace *ns, *ns2;
JSObject *obj2;
ns = (JSXMLNamespace *) JS_GetPrivate(cx, obj);
JS_ASSERT(JSVAL_IS_OBJECT(v));
obj2 = JSVAL_TO_OBJECT(v);
if (!obj2 || OBJ_GET_CLASS(cx, obj2) != &js_NamespaceClass.base) {
*bp = JS_FALSE;
} else {
ns2 = (JSXMLNamespace *) JS_GetPrivate(cx, obj2);
*bp = js_EqualStrings(ns->uri, ns2->uri);
}
return JS_TRUE;
}
JS_FRIEND_DATA(JSExtendedClass) js_NamespaceClass = {
{ "Namespace",
JSCLASS_HAS_PRIVATE | JSCLASS_CONSTRUCT_PROTOTYPE | JSCLASS_IS_EXTENDED |
JSCLASS_MARK_IS_TRACE | JSCLASS_HAS_CACHED_PROTO(JSProto_Namespace),
JS_PropertyStub, JS_PropertyStub, namespace_getProperty, NULL,
JS_EnumerateStub, JS_ResolveStub, JS_ConvertStub, namespace_finalize,
NULL, NULL, NULL, NULL,
NULL, NULL, JS_CLASS_TRACE(namespace_trace), NULL },
namespace_equality,NULL, NULL, NULL,
NULL, NULL, NULL, NULL
};
#define NAMESPACE_ATTRS \
(JSPROP_ENUMERATE | JSPROP_READONLY | JSPROP_PERMANENT | JSPROP_SHARED)
static JSPropertySpec namespace_props[] = {
{js_prefix_str, NAMESPACE_PREFIX, NAMESPACE_ATTRS, 0, 0},
{js_uri_str, NAMESPACE_URI, NAMESPACE_ATTRS, 0, 0},
{0,0,0,0,0}
};
static JSBool
namespace_toString(JSContext *cx, uintN argc, jsval *vp)
{
JSXMLNamespace *ns;
ns = (JSXMLNamespace *)
JS_GetInstancePrivate(cx,
JS_THIS_OBJECT(cx, vp),
&js_NamespaceClass.base,
vp + 2);
if (!ns)
return JS_FALSE;
*vp = STRING_TO_JSVAL(ns->uri);
return JS_TRUE;
}
static JSFunctionSpec namespace_methods[] = {
JS_FN(js_toString_str, namespace_toString, 0,0,0),
JS_FS_END
};
JSXMLNamespace *
js_NewXMLNamespace(JSContext *cx, JSString *prefix, JSString *uri,
JSBool declared)
{
JSXMLNamespace *ns;
ns = (JSXMLNamespace *)
js_NewGCThing(cx, GCX_NAMESPACE, sizeof(JSXMLNamespace));
if (!ns)
return NULL;
ns->object = NULL;
ns->prefix = prefix;
ns->uri = uri;
ns->declared = declared;
METER(xml_stats.namespace);
METER(xml_stats.livenamespace);
return ns;
}
void
js_TraceXMLNamespace(JSTracer *trc, JSXMLNamespace *ns)
{
if (ns->object)
JS_CALL_OBJECT_TRACER(trc, ns->object, "object");
if (ns->prefix)
JS_CALL_STRING_TRACER(trc, ns->prefix, "prefix");
if (ns->uri)
JS_CALL_STRING_TRACER(trc, ns->uri, "uri");
}
void
js_FinalizeXMLNamespace(JSContext *cx, JSXMLNamespace *ns)
{
UNMETER(xml_stats.livenamespace);
}
JSObject *
js_NewXMLNamespaceObject(JSContext *cx, JSString *prefix, JSString *uri,
JSBool declared)
{
JSXMLNamespace *ns;
ns = js_NewXMLNamespace(cx, prefix, uri, declared);
if (!ns)
return NULL;
return js_GetXMLNamespaceObject(cx, ns);
}
JSObject *
js_GetXMLNamespaceObject(JSContext *cx, JSXMLNamespace *ns)
{
JSObject *obj;
obj = ns->object;
if (obj) {
JS_ASSERT(JS_GetPrivate(cx, obj) == ns);
return obj;
}
obj = js_NewObject(cx, &js_NamespaceClass.base, NULL, NULL);
if (!obj || !JS_SetPrivate(cx, obj, ns)) {
cx->weakRoots.newborn[GCX_OBJECT] = NULL;
return NULL;
}
ns->object = obj;
METER(xml_stats.namespaceobj);
METER(xml_stats.livenamespaceobj);
return obj;
}
/*
* QName class and library functions.
*/
enum qname_tinyid {
QNAME_URI = -1,
QNAME_LOCALNAME = -2
};
static JSBool
qname_getProperty(JSContext *cx, JSObject *obj, jsval id, jsval *vp)
{
JSXMLQName *qn;
if (!JSVAL_IS_INT(id))
return JS_TRUE;
qn = (JSXMLQName *)
JS_GetInstancePrivate(cx, obj, &js_QNameClass.base, NULL);
if (!qn)
return JS_TRUE;
switch (JSVAL_TO_INT(id)) {
case QNAME_URI:
*vp = qn->uri ? STRING_TO_JSVAL(qn->uri) : JSVAL_NULL;
break;
case QNAME_LOCALNAME:
*vp = STRING_TO_JSVAL(qn->localName);
break;
}
return JS_TRUE;
}
static void
qname_finalize(JSContext *cx, JSObject *obj)
{
JSXMLQName *qn;
qn = (JSXMLQName *) JS_GetPrivate(cx, obj);
if (!qn)
return;
JS_ASSERT(qn->object == obj);
qn->object = NULL;
UNMETER(xml_stats.liveqnameobj);
}
static void
anyname_finalize(JSContext* cx, JSObject* obj)
{
JSRuntime *rt;
/* Make sure the next call to js_GetAnyName doesn't try to use obj. */
rt = cx->runtime;
if (rt->anynameObject == obj)
rt->anynameObject = NULL;
qname_finalize(cx, obj);
}
static void
qname_trace(JSTracer *trc, JSObject *obj)
{
JSXMLQName *qn;
qn = (JSXMLQName *) JS_GetPrivate(trc->context, obj);
if (qn)
JS_CALL_TRACER(trc, qn, JSTRACE_QNAME, "private");
}
static JSBool
qname_identity(JSXMLQName *qna, JSXMLQName *qnb)
{
if (!qna->uri ^ !qnb->uri)
return JS_FALSE;
if (qna->uri && !js_EqualStrings(qna->uri, qnb->uri))
return JS_FALSE;
return js_EqualStrings(qna->localName, qnb->localName);
}
static JSBool
qname_equality(JSContext *cx, JSObject *obj, jsval v, JSBool *bp)
{
JSXMLQName *qn, *qn2;
JSObject *obj2;
qn = (JSXMLQName *) JS_GetPrivate(cx, obj);
JS_ASSERT(JSVAL_IS_OBJECT(v));
obj2 = JSVAL_TO_OBJECT(v);
if (!obj2 || OBJ_GET_CLASS(cx, obj2) != &js_QNameClass.base) {
*bp = JS_FALSE;
} else {
qn2 = (JSXMLQName *) JS_GetPrivate(cx, obj2);
*bp = qname_identity(qn, qn2);
}
return JS_TRUE;
}
JS_FRIEND_DATA(JSExtendedClass) js_QNameClass = {
{ "QName",
JSCLASS_HAS_PRIVATE | JSCLASS_CONSTRUCT_PROTOTYPE | JSCLASS_IS_EXTENDED |
JSCLASS_MARK_IS_TRACE | JSCLASS_HAS_CACHED_PROTO(JSProto_QName),
JS_PropertyStub, JS_PropertyStub, qname_getProperty, NULL,
JS_EnumerateStub, JS_ResolveStub, JS_ConvertStub, qname_finalize,
NULL, NULL, NULL, NULL,
NULL, NULL, JS_CLASS_TRACE(qname_trace), NULL },
qname_equality, NULL, NULL, NULL,
NULL, NULL, NULL, NULL
};
/*
* Classes for the ECMA-357-internal types AttributeName and AnyName, which
* are like QName, except that they have no property getters. They share the
* qname_toString method, and therefore are exposed as constructable objects
* in this implementation.
*/
JS_FRIEND_DATA(JSClass) js_AttributeNameClass = {
js_AttributeName_str,
JSCLASS_HAS_PRIVATE | JSCLASS_CONSTRUCT_PROTOTYPE |
JSCLASS_MARK_IS_TRACE | JSCLASS_HAS_CACHED_PROTO(JSProto_AttributeName),
JS_PropertyStub, JS_PropertyStub, JS_PropertyStub, JS_PropertyStub,
JS_EnumerateStub, JS_ResolveStub, JS_ConvertStub, qname_finalize,
NULL, NULL, NULL, NULL,
NULL, NULL, JS_CLASS_TRACE(qname_trace), NULL
};
JS_FRIEND_DATA(JSClass) js_AnyNameClass = {
js_AnyName_str,
JSCLASS_HAS_PRIVATE | JSCLASS_CONSTRUCT_PROTOTYPE |
JSCLASS_MARK_IS_TRACE | JSCLASS_HAS_CACHED_PROTO(JSProto_AnyName),
JS_PropertyStub, JS_PropertyStub, JS_PropertyStub, JS_PropertyStub,
JS_EnumerateStub, JS_ResolveStub, JS_ConvertStub, anyname_finalize,
NULL, NULL, NULL, NULL,
NULL, NULL, JS_CLASS_TRACE(qname_trace), NULL
};
#define QNAME_ATTRS \
(JSPROP_ENUMERATE | JSPROP_READONLY | JSPROP_PERMANENT | JSPROP_SHARED)
static JSPropertySpec qname_props[] = {
{js_uri_str, QNAME_URI, QNAME_ATTRS, 0, 0},
{js_localName_str, QNAME_LOCALNAME, QNAME_ATTRS, 0, 0},
{0,0,0,0,0}
};
static JSBool
qname_toString(JSContext *cx, uintN argc, jsval *vp)
{
JSObject *obj;
JSClass *clasp;
JSXMLQName *qn;
JSString *str, *qualstr;
size_t length;
jschar *chars;
obj = JS_THIS_OBJECT(cx, vp);
clasp = OBJ_GET_CLASS(cx, obj);
if (clasp == &js_AttributeNameClass || clasp == &js_AnyNameClass) {
qn = (JSXMLQName *) JS_GetPrivate(cx, obj);
} else {
qn = (JSXMLQName *)
JS_GetInstancePrivate(cx, obj, &js_QNameClass.base, vp + 2);
if (!qn)
return JS_FALSE;
}
if (!qn->uri) {
/* No uri means wildcard qualifier. */
str = ATOM_TO_STRING(cx->runtime->atomState.starQualifierAtom);
} else if (IS_EMPTY(qn->uri)) {
/* Empty string for uri means localName is in no namespace. */
str = cx->runtime->emptyString;
} else {
qualstr = ATOM_TO_STRING(cx->runtime->atomState.qualifierAtom);
str = js_ConcatStrings(cx, qn->uri, qualstr);
if (!str)
return JS_FALSE;
}
str = js_ConcatStrings(cx, str, qn->localName);
if (!str)
return JS_FALSE;
if (str && clasp == &js_AttributeNameClass) {
length = JSSTRING_LENGTH(str);
chars = (jschar *) JS_malloc(cx, (length + 2) * sizeof(jschar));
if (!chars)
return JS_FALSE;
*chars = '@';
js_strncpy(chars + 1, JSSTRING_CHARS(str), length);
chars[++length] = 0;
str = js_NewString(cx, chars, length);
if (!str) {
JS_free(cx, chars);
return JS_FALSE;
}
}
*vp = STRING_TO_JSVAL(str);
return JS_TRUE;
}
static JSFunctionSpec qname_methods[] = {
JS_FN(js_toString_str, qname_toString, 0,0,0),
JS_FS_END
};
JSXMLQName *
js_NewXMLQName(JSContext *cx, JSString *uri, JSString *prefix,
JSString *localName)
{
JSXMLQName *qn;
qn = (JSXMLQName *) js_NewGCThing(cx, GCX_QNAME, sizeof(JSXMLQName));
if (!qn)
return NULL;
qn->object = NULL;
qn->uri = uri;
qn->prefix = prefix;
qn->localName = localName;
METER(xml_stats.qname);
METER(xml_stats.liveqname);
return qn;
}
void
js_TraceXMLQName(JSTracer *trc, JSXMLQName *qn)
{
if (qn->object)
JS_CALL_OBJECT_TRACER(trc, qn->object, "object");
if (qn->uri)
JS_CALL_STRING_TRACER(trc, qn->uri, "uri");
if (qn->prefix)
JS_CALL_STRING_TRACER(trc, qn->prefix, "prefix");
if (qn->localName)
JS_CALL_STRING_TRACER(trc, qn->localName, "localName");
}
void
js_FinalizeXMLQName(JSContext *cx, JSXMLQName *qn)
{
UNMETER(xml_stats.liveqname);
}
JSObject *
js_NewXMLQNameObject(JSContext *cx, JSString *uri, JSString *prefix,
JSString *localName)
{
JSXMLQName *qn;
qn = js_NewXMLQName(cx, uri, prefix, localName);
if (!qn)
return NULL;
return js_GetXMLQNameObject(cx, qn);
}
JSObject *
js_GetXMLQNameObject(JSContext *cx, JSXMLQName *qn)
{
JSObject *obj;
obj = qn->object;
if (obj) {
JS_ASSERT(JS_GetPrivate(cx, obj) == qn);
return obj;
}
obj = js_NewObject(cx, &js_QNameClass.base, NULL, NULL);
if (!obj || !JS_SetPrivate(cx, obj, qn)) {
cx->weakRoots.newborn[GCX_OBJECT] = NULL;
return NULL;
}
qn->object = obj;
METER(xml_stats.qnameobj);
METER(xml_stats.liveqnameobj);
return obj;
}
JSObject *
js_GetAttributeNameObject(JSContext *cx, JSXMLQName *qn)
{
JSObject *obj;
obj = qn->object;
if (obj) {
if (OBJ_GET_CLASS(cx, obj) == &js_AttributeNameClass)
return obj;
qn = js_NewXMLQName(cx, qn->uri, qn->prefix, qn->localName);
if (!qn)
return NULL;
}
obj = js_NewObject(cx, &js_AttributeNameClass, NULL, NULL);
if (!obj || !JS_SetPrivate(cx, obj, qn)) {
cx->weakRoots.newborn[GCX_OBJECT] = NULL;
return NULL;
}
qn->object = obj;
METER(xml_stats.qnameobj);
METER(xml_stats.liveqnameobj);
return obj;
}
JSObject *
js_ConstructXMLQNameObject(JSContext *cx, jsval nsval, jsval lnval)
{
jsval argv[2];
/*
* ECMA-357 11.1.2,
* The _QualifiedIdentifier : PropertySelector :: PropertySelector_
* production, step 2.
*/
if (!JSVAL_IS_PRIMITIVE(nsval) &&
OBJ_GET_CLASS(cx, JSVAL_TO_OBJECT(nsval)) == &js_AnyNameClass) {
nsval = JSVAL_NULL;
}
argv[0] = nsval;
argv[1] = lnval;
return js_ConstructObject(cx, &js_QNameClass.base, NULL, NULL, 2, argv);
}
static JSBool
IsXMLName(const jschar *cp, size_t n)
{
JSBool rv;
jschar c;
rv = JS_FALSE;
if (n != 0 && JS_ISXMLNSSTART(*cp)) {
while (--n != 0) {
c = *++cp;
if (!JS_ISXMLNS(c))
return rv;
}
rv = JS_TRUE;
}
return rv;
}
JSBool
js_IsXMLName(JSContext *cx, jsval v)
{
JSClass *clasp;
JSXMLQName *qn;
JSString *name;
JSErrorReporter older;
/*
* Inline specialization of the QName constructor called with v passed as
* the only argument, to compute the localName for the constructed qname,
* without actually allocating the object or computing its uri and prefix.
* See ECMA-357 13.1.2.1 step 1 and 13.3.2.
*/
if (!JSVAL_IS_PRIMITIVE(v) &&
(clasp = OBJ_GET_CLASS(cx, JSVAL_TO_OBJECT(v)),
clasp == &js_QNameClass.base ||
clasp == &js_AttributeNameClass ||
clasp == &js_AnyNameClass)) {
qn = (JSXMLQName *) JS_GetPrivate(cx, JSVAL_TO_OBJECT(v));
name = qn->localName;
} else {
older = JS_SetErrorReporter(cx, NULL);
name = js_ValueToString(cx, v);
JS_SetErrorReporter(cx, older);
if (!name) {
JS_ClearPendingException(cx);
return JS_FALSE;
}
}
return IsXMLName(JSSTRING_CHARS(name), JSSTRING_LENGTH(name));
}
static JSBool
Namespace(JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval)
{
jsval urival, prefixval;
JSObject *uriobj;
JSBool isNamespace, isQName;
JSClass *clasp;
JSString *empty, *prefix;
JSXMLNamespace *ns, *ns2;
JSXMLQName *qn;
urival = argv[argc > 1];
isNamespace = isQName = JS_FALSE;
if (!JSVAL_IS_PRIMITIVE(urival)) {
uriobj = JSVAL_TO_OBJECT(urival);
clasp = OBJ_GET_CLASS(cx, uriobj);
isNamespace = (clasp == &js_NamespaceClass.base);
isQName = (clasp == &js_QNameClass.base);
}
#ifdef __GNUC__ /* suppress bogus gcc warnings */
else uriobj = NULL;
#endif
if (!(cx->fp->flags & JSFRAME_CONSTRUCTING)) {
/* Namespace called as function. */
if (argc == 1 && isNamespace) {
/* Namespace called with one Namespace argument is identity. */
*rval = urival;
return JS_TRUE;
}
/* Create and return a new QName object exactly as if constructed. */
obj = js_NewObject(cx, &js_NamespaceClass.base, NULL, NULL);
if (!obj)
return JS_FALSE;
*rval = OBJECT_TO_JSVAL(obj);
}
METER(xml_stats.namespaceobj);
METER(xml_stats.livenamespaceobj);
/*
* Create and connect private data to rooted obj early, so we don't have
* to worry about rooting string newborns hanging off of the private data
* further below.
*/
empty = cx->runtime->emptyString;
ns = js_NewXMLNamespace(cx, empty, empty, JS_FALSE);
if (!ns)
return JS_FALSE;
if (!JS_SetPrivate(cx, obj, ns))
return JS_FALSE;
ns->object = obj;
if (argc == 1) {
if (isNamespace) {
ns2 = (JSXMLNamespace *) JS_GetPrivate(cx, uriobj);
ns->uri = ns2->uri;
ns->prefix = ns2->prefix;
} else if (isQName &&
(qn = (JSXMLQName *) JS_GetPrivate(cx, uriobj))->uri) {
ns->uri = qn->uri;
ns->prefix = qn->prefix;
} else {
ns->uri = js_ValueToString(cx, urival);
if (!ns->uri)
return JS_FALSE;
/* NULL here represents *undefined* in ECMA-357 13.2.2 3(c)iii. */
if (!IS_EMPTY(ns->uri))
ns->prefix = NULL;
}
} else if (argc == 2) {
if (isQName &&
(qn = (JSXMLQName *) JS_GetPrivate(cx, uriobj))->uri) {
ns->uri = qn->uri;
} else {
ns->uri = js_ValueToString(cx, urival);
if (!ns->uri)
return JS_FALSE;
}
prefixval = argv[0];
if (IS_EMPTY(ns->uri)) {
if (!JSVAL_IS_VOID(prefixval)) {
prefix = js_ValueToString(cx, prefixval);
if (!prefix)
return JS_FALSE;
if (!IS_EMPTY(prefix)) {
JS_ReportErrorNumber(cx, js_GetErrorMessage, NULL,
JSMSG_BAD_XML_NAMESPACE,
js_ValueToPrintableString(cx,
STRING_TO_JSVAL(prefix)));
return JS_FALSE;
}
}
} else if (JSVAL_IS_VOID(prefixval) || !js_IsXMLName(cx, prefixval)) {
/* NULL here represents *undefined* in ECMA-357 13.2.2 4(d) etc. */
ns->prefix = NULL;
} else {
prefix = js_ValueToString(cx, prefixval);
if (!prefix)
return JS_FALSE;
ns->prefix = prefix;
}
}
return JS_TRUE;
}
static JSBool
QName(JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval)
{
jsval nameval, nsval;
JSBool isQName, isNamespace;
JSXMLQName *qn;
JSString *uri, *prefix, *name;
JSObject *nsobj;
JSClass *clasp;
JSXMLNamespace *ns;
nameval = argv[argc > 1];
isQName =
!JSVAL_IS_PRIMITIVE(nameval) &&
OBJ_GET_CLASS(cx, JSVAL_TO_OBJECT(nameval)) == &js_QNameClass.base;
if (!(cx->fp->flags & JSFRAME_CONSTRUCTING)) {
/* QName called as function. */
if (argc == 1 && isQName) {
/* QName called with one QName argument is identity. */
*rval = nameval;
return JS_TRUE;
}
/*
* Create and return a new QName object exactly as if constructed.
* Use the constructor's clasp so we can be shared by AttributeName
* (see below after this function).
*/
obj = js_NewObject(cx,
JS_ValueToFunction(cx, argv[-2])->clasp,
NULL, NULL);
if (!obj)
return JS_FALSE;
*rval = OBJECT_TO_JSVAL(obj);
}
METER(xml_stats.qnameobj);
METER(xml_stats.liveqnameobj);
if (isQName) {
/* If namespace is not specified and name is a QName, clone it. */
qn = (JSXMLQName *) JS_GetPrivate(cx, JSVAL_TO_OBJECT(nameval));
if (argc == 1) {
uri = qn->uri;
prefix = qn->prefix;
name = qn->localName;
goto out;
}
/* Namespace and qname were passed -- use the qname's localName. */
nameval = STRING_TO_JSVAL(qn->localName);
}
if (argc == 0) {
name = cx->runtime->emptyString;
} else {
name = js_ValueToString(cx, nameval);
if (!name)
return JS_FALSE;
/* Use argv[1] as a local root for name, even if it was not passed. */
argv[1] = STRING_TO_JSVAL(name);
}
nsval = argv[0];
if (argc == 1 || JSVAL_IS_VOID(nsval)) {
if (IS_STAR(name)) {
nsval = JSVAL_NULL;
} else {
if (!js_GetDefaultXMLNamespace(cx, &nsval))
return JS_FALSE;
}
}
if (JSVAL_IS_NULL(nsval)) {
/* NULL prefix represents *undefined* in ECMA-357 13.3.2 5(a). */
uri = prefix = NULL;
} else {
/*
* Inline specialization of the Namespace constructor called with
* nsval passed as the only argument, to compute the uri and prefix
* for the constructed namespace, without actually allocating the
* object or computing other members. See ECMA-357 13.3.2 6(a) and
* 13.2.2.
*/
isNamespace = isQName = JS_FALSE;
if (!JSVAL_IS_PRIMITIVE(nsval)) {
nsobj = JSVAL_TO_OBJECT(nsval);
clasp = OBJ_GET_CLASS(cx, nsobj);
isNamespace = (clasp == &js_NamespaceClass.base);
isQName = (clasp == &js_QNameClass.base);
}
#ifdef __GNUC__ /* suppress bogus gcc warnings */
else nsobj = NULL;
#endif
if (isNamespace) {
ns = (JSXMLNamespace *) JS_GetPrivate(cx, nsobj);
uri = ns->uri;
prefix = ns->prefix;
} else if (isQName &&
(qn = (JSXMLQName *) JS_GetPrivate(cx, nsobj))->uri) {
uri = qn->uri;
prefix = qn->prefix;
} else {
uri = js_ValueToString(cx, nsval);
if (!uri)
return JS_FALSE;
argv[0] = STRING_TO_JSVAL(uri); /* local root */
/* NULL here represents *undefined* in ECMA-357 13.2.2 3(c)iii. */
prefix = IS_EMPTY(uri) ? cx->runtime->emptyString : NULL;
}
}
out:
qn = js_NewXMLQName(cx, uri, prefix, name);
if (!qn)
return JS_FALSE;
if (!JS_SetPrivate(cx, obj, qn))
return JS_FALSE;
qn->object = obj;
return JS_TRUE;
}
static JSBool
AttributeName(JSContext *cx, JSObject *obj, uintN argc, jsval *argv,
jsval *rval)
{
/*
* Since js_AttributeNameClass was initialized, obj will have that as its
* class, not js_QNameClass.
*/
return QName(cx, obj, argc, argv, rval);
}
/*
* XMLArray library functions.
*/
static JSBool
namespace_identity(const void *a, const void *b)
{
const JSXMLNamespace *nsa = (const JSXMLNamespace *) a;
const JSXMLNamespace *nsb = (const JSXMLNamespace *) b;
if (nsa->prefix && nsb->prefix) {
if (!js_EqualStrings(nsa->prefix, nsb->prefix))
return JS_FALSE;
} else {
if (nsa->prefix || nsb->prefix)
return JS_FALSE;
}
return js_EqualStrings(nsa->uri, nsb->uri);
}
static JSBool
attr_identity(const void *a, const void *b)
{
const JSXML *xmla = (const JSXML *) a;
const JSXML *xmlb = (const JSXML *) b;
return qname_identity(xmla->name, xmlb->name);
}
static void
XMLArrayCursorInit(JSXMLArrayCursor *cursor, JSXMLArray *array)
{
JSXMLArrayCursor *next;
cursor->array = array;
cursor->index = 0;
next = cursor->next = array->cursors;
if (next)
next->prevp = &cursor->next;
cursor->prevp = &array->cursors;
array->cursors = cursor;
cursor->root = NULL;
}
static void
XMLArrayCursorFinish(JSXMLArrayCursor *cursor)
{
JSXMLArrayCursor *next;
if (!cursor->array)
return;
next = cursor->next;
if (next)
next->prevp = cursor->prevp;
*cursor->prevp = next;
cursor->array = NULL;
}
static void *
XMLArrayCursorNext(JSXMLArrayCursor *cursor)
{
JSXMLArray *array;
array = cursor->array;
if (!array || cursor->index >= array->length)
return NULL;
return cursor->root = array->vector[cursor->index++];
}
static void *
XMLArrayCursorItem(JSXMLArrayCursor *cursor)
{
JSXMLArray *array;
array = cursor->array;
if (!array || cursor->index >= array->length)
return NULL;
return cursor->root = array->vector[cursor->index];
}
static void
XMLArrayCursorTrace(JSTracer *trc, JSXMLArrayCursor *cursor)
{
void *root;
#ifdef DEBUG
size_t index = 0;
#endif
for (; cursor; cursor = cursor->next) {
root = cursor->root;
JS_SET_TRACING_INDEX(trc, "cursor_root", index++);
js_CallValueTracerIfGCThing(trc, (jsval)root);
}
}
/* NB: called with null cx from the GC, via xml_trace => XMLArrayTrim. */
static JSBool
XMLArraySetCapacity(JSContext *cx, JSXMLArray *array, uint32 capacity)
{
void **vector;
if (capacity == 0) {
/* We could let realloc(p, 0) free this, but purify gets confused. */
if (array->vector)
free(array->vector);
vector = NULL;
} else {
if ((size_t)capacity > ~(size_t)0 / sizeof(void *) ||
!(vector = (void **)
realloc(array->vector, capacity * sizeof(void *)))) {
if (cx)
JS_ReportOutOfMemory(cx);
return JS_FALSE;
}
}
array->capacity = JSXML_PRESET_CAPACITY | capacity;
array->vector = vector;
return JS_TRUE;
}
static void
XMLArrayTrim(JSXMLArray *array)
{
if (array->capacity & JSXML_PRESET_CAPACITY)
return;
if (array->length < array->capacity)
XMLArraySetCapacity(NULL, array, array->length);
}
static JSBool
XMLArrayInit(JSContext *cx, JSXMLArray *array, uint32 capacity)
{
array->length = array->capacity = 0;
array->vector = NULL;
array->cursors = NULL;
return capacity == 0 || XMLArraySetCapacity(cx, array, capacity);
}
static void
XMLArrayFinish(JSContext *cx, JSXMLArray *array)
{
JSXMLArrayCursor *cursor;
JS_free(cx, array->vector);
while ((cursor = array->cursors) != NULL)
XMLArrayCursorFinish(cursor);
#ifdef DEBUG
memset(array, 0xd5, sizeof *array);
#endif
}
#define XML_NOT_FOUND ((uint32) -1)
static uint32
XMLArrayFindMember(const JSXMLArray *array, void *elt, JSIdentityOp identity)
{
void **vector;
uint32 i, n;
/* The identity op must not reallocate array->vector. */
vector = array->vector;
if (identity) {
for (i = 0, n = array->length; i < n; i++) {
if (identity(vector[i], elt))
return i;
}
} else {
for (i = 0, n = array->length; i < n; i++) {
if (vector[i] == elt)
return i;
}
}
return XML_NOT_FOUND;
}
/*
* Grow array vector capacity by powers of two to LINEAR_THRESHOLD, and after
* that, grow by LINEAR_INCREMENT. Both must be powers of two, and threshold
* should be greater than increment.
*/
#define LINEAR_THRESHOLD 256
#define LINEAR_INCREMENT 32
static JSBool
XMLArrayAddMember(JSContext *cx, JSXMLArray *array, uint32 index, void *elt)
{
uint32 capacity, i;
int log2;
void **vector;
if (index >= array->length) {
if (index >= JSXML_CAPACITY(array)) {
/* Arrange to clear JSXML_PRESET_CAPACITY from array->capacity. */
capacity = index + 1;
if (index >= LINEAR_THRESHOLD) {
capacity = JS_ROUNDUP(capacity, LINEAR_INCREMENT);
} else {
JS_CEILING_LOG2(log2, capacity);
capacity = JS_BIT(log2);
}
if ((size_t)capacity > ~(size_t)0 / sizeof(void *) ||
!(vector = (void **)
realloc(array->vector, capacity * sizeof(void *)))) {
JS_ReportOutOfMemory(cx);
return JS_FALSE;
}
array->capacity = capacity;
array->vector = vector;
for (i = array->length; i < index; i++)
vector[i] = NULL;
}
array->length = index + 1;
}
array->vector[index] = elt;
return JS_TRUE;
}
static JSBool
XMLArrayInsert(JSContext *cx, JSXMLArray *array, uint32 i, uint32 n)
{
uint32 j;
JSXMLArrayCursor *cursor;
j = array->length;
JS_ASSERT(i <= j);
if (!XMLArraySetCapacity(cx, array, j + n))
return JS_FALSE;
array->length = j + n;
JS_ASSERT(n != (uint32)-1);
while (j != i) {
--j;
array->vector[j + n] = array->vector[j];
}
for (cursor = array->cursors; cursor; cursor = cursor->next) {
if (cursor->index > i)
cursor->index += n;
}
return JS_TRUE;
}
static void *
XMLArrayDelete(JSContext *cx, JSXMLArray *array, uint32 index, JSBool compress)
{
uint32 length;
void **vector, *elt;
JSXMLArrayCursor *cursor;
length = array->length;
if (index >= length)
return NULL;
vector = array->vector;
elt = vector[index];
if (compress) {
while (++index < length)
vector[index-1] = vector[index];
array->length = length - 1;
array->capacity = JSXML_CAPACITY(array);
} else {
vector[index] = NULL;
}
for (cursor = array->cursors; cursor; cursor = cursor->next) {
if (cursor->index > index)
--cursor->index;
}
return elt;
}
static void
XMLArrayTruncate(JSContext *cx, JSXMLArray *array, uint32 length)
{
void **vector;
JS_ASSERT(!array->cursors);
if (length >= array->length)
return;
if (length == 0) {
if (array->vector)
free(array->vector);
vector = NULL;
} else {
vector = (void **) realloc(array->vector, length * sizeof(void *));
if (!vector)
return;
}
if (array->length > length)
array->length = length;
array->capacity = length;
array->vector = vector;
}
#define XMLARRAY_FIND_MEMBER(a,e,f) XMLArrayFindMember(a, (void *)(e), f)
#define XMLARRAY_HAS_MEMBER(a,e,f) (XMLArrayFindMember(a, (void *)(e), f) != \
XML_NOT_FOUND)
#define XMLARRAY_MEMBER(a,i,t) (((i) < (a)->length) \
? (t *) (a)->vector[i] \
: NULL)
#define XMLARRAY_SET_MEMBER(a,i,e) JS_BEGIN_MACRO \
if ((a)->length <= (i)) \
(a)->length = (i) + 1; \
((a)->vector[i] = (void *)(e)); \
JS_END_MACRO
#define XMLARRAY_ADD_MEMBER(x,a,i,e)XMLArrayAddMember(x, a, i, (void *)(e))
#define XMLARRAY_INSERT(x,a,i,n) XMLArrayInsert(x, a, i, n)
#define XMLARRAY_APPEND(x,a,e) XMLARRAY_ADD_MEMBER(x, a, (a)->length, (e))
#define XMLARRAY_DELETE(x,a,i,c,t) ((t *) XMLArrayDelete(x, a, i, c))
#define XMLARRAY_TRUNCATE(x,a,n) XMLArrayTruncate(x, a, n)
/*
* Define XML setting property strings and constants early, so everyone can
* use the same names and their magic numbers (tinyids, flags).
*/
static const char js_ignoreComments_str[] = "ignoreComments";
static const char js_ignoreProcessingInstructions_str[]
= "ignoreProcessingInstructions";
static const char js_ignoreWhitespace_str[] = "ignoreWhitespace";
static const char js_prettyPrinting_str[] = "prettyPrinting";
static const char js_prettyIndent_str[] = "prettyIndent";
/*
* NB: These XML static property tinyids must
* (a) not collide with the generic negative tinyids at the top of jsfun.c;
* (b) index their corresponding xml_static_props array elements.
* Don't change 'em!
*/
enum xml_static_tinyid {
XML_IGNORE_COMMENTS,
XML_IGNORE_PROCESSING_INSTRUCTIONS,
XML_IGNORE_WHITESPACE,
XML_PRETTY_PRINTING,
XML_PRETTY_INDENT
};
static JSBool
xml_setting_getter(JSContext *cx, JSObject *obj, jsval id, jsval *vp)
{
return JS_TRUE;
}
static JSBool
xml_setting_setter(JSContext *cx, JSObject *obj, jsval id, jsval *vp)
{
JSBool b;
uint8 flag;
JS_ASSERT(JSVAL_IS_INT(id));
if (!js_ValueToBoolean(cx, *vp, &b))
return JS_FALSE;
flag = JS_BIT(JSVAL_TO_INT(id));
if (b)
cx->xmlSettingFlags |= flag;
else
cx->xmlSettingFlags &= ~flag;
return JS_TRUE;
}
static JSPropertySpec xml_static_props[] = {
{js_ignoreComments_str, XML_IGNORE_COMMENTS, JSPROP_PERMANENT,
xml_setting_getter, xml_setting_setter},
{js_ignoreProcessingInstructions_str,
XML_IGNORE_PROCESSING_INSTRUCTIONS, JSPROP_PERMANENT,
xml_setting_getter, xml_setting_setter},
{js_ignoreWhitespace_str, XML_IGNORE_WHITESPACE, JSPROP_PERMANENT,
xml_setting_getter, xml_setting_setter},
{js_prettyPrinting_str, XML_PRETTY_PRINTING, JSPROP_PERMANENT,
xml_setting_getter, xml_setting_setter},
{js_prettyIndent_str, XML_PRETTY_INDENT, JSPROP_PERMANENT,
xml_setting_getter, NULL},
{0,0,0,0,0}
};
/* Derive cx->xmlSettingFlags bits from xml_static_props tinyids. */
#define XSF_IGNORE_COMMENTS JS_BIT(XML_IGNORE_COMMENTS)
#define XSF_IGNORE_PROCESSING_INSTRUCTIONS \
JS_BIT(XML_IGNORE_PROCESSING_INSTRUCTIONS)
#define XSF_IGNORE_WHITESPACE JS_BIT(XML_IGNORE_WHITESPACE)
#define XSF_PRETTY_PRINTING JS_BIT(XML_PRETTY_PRINTING)
#define XSF_CACHE_VALID JS_BIT(XML_PRETTY_INDENT)
/*
* Extra, unrelated but necessarily disjoint flag used by ParseNodeToXML.
* This flag means a couple of things:
*
* - The top JSXML created for a parse tree must have an object owning it.
*
* - That the default namespace normally inherited from the temporary
* <parent xmlns='...'> tag that wraps a runtime-concatenated XML source
* string must, in the case of a precompiled XML object tree, inherit via
* ad-hoc code in ParseNodeToXML.
*
* Because of the second purpose, we name this flag XSF_PRECOMPILED_ROOT.
*/
#define XSF_PRECOMPILED_ROOT (XSF_CACHE_VALID << 1)
/* Macros for special-casing xml:, xmlns= and xmlns:foo= in ParseNodeToQName. */
#define IS_XML(str) \
(JSSTRING_LENGTH(str) == 3 && IS_XML_CHARS(JSSTRING_CHARS(str)))
#define IS_XMLNS(str) \
(JSSTRING_LENGTH(str) == 5 && IS_XMLNS_CHARS(JSSTRING_CHARS(str)))
#define IS_XML_CHARS(chars) \
(JS_TOLOWER((chars)[0]) == 'x' && \
JS_TOLOWER((chars)[1]) == 'm' && \
JS_TOLOWER((chars)[2]) == 'l')
#define HAS_NS_AFTER_XML(chars) \
(JS_TOLOWER((chars)[3]) == 'n' && \
JS_TOLOWER((chars)[4]) == 's')
#define IS_XMLNS_CHARS(chars) \
(IS_XML_CHARS(chars) && HAS_NS_AFTER_XML(chars))
#define STARTS_WITH_XML(chars,length) \
(length >= 3 && IS_XML_CHARS(chars))
static const char xml_namespace_str[] = "http://www.w3.org/XML/1998/namespace";
static const char xmlns_namespace_str[] = "http://www.w3.org/2000/xmlns/";
static JSXMLQName *
ParseNodeToQName(JSContext *cx, JSParseNode *pn, JSXMLArray *inScopeNSes,
JSBool isAttributeName)
{
JSString *str, *uri, *prefix, *localName;
size_t length, offset;
const jschar *start, *limit, *colon;
uint32 n;
JSXMLNamespace *ns;
JS_ASSERT(pn->pn_arity == PN_NULLARY);
str = ATOM_TO_STRING(pn->pn_atom);
JSSTRING_CHARS_AND_LENGTH(str, start, length);
JS_ASSERT(length != 0 && *start != '@');
JS_ASSERT(length != 1 || *start != '*');
uri = cx->runtime->emptyString;
limit = start + length;
colon = js_strchr_limit(start, ':', limit);
if (colon) {
offset = PTRDIFF(colon, start, jschar);
prefix = js_NewDependentString(cx, str, 0, offset);
if (!prefix)
return NULL;
if (STARTS_WITH_XML(start, offset)) {
if (offset == 3) {
uri = JS_InternString(cx, xml_namespace_str);
if (!uri)
return NULL;
} else if (offset == 5 && HAS_NS_AFTER_XML(start)) {
uri = JS_InternString(cx, xmlns_namespace_str);
if (!uri)
return NULL;
} else {
uri = NULL;
}
} else {
uri = NULL;
n = inScopeNSes->length;
while (n != 0) {
--n;
ns = XMLARRAY_MEMBER(inScopeNSes, n, JSXMLNamespace);
if (ns->prefix && js_EqualStrings(ns->prefix, prefix)) {
uri = ns->uri;
break;
}
}
}
if (!uri) {
js_ReportCompileErrorNumber(cx, pn,
JSREPORT_PN | JSREPORT_ERROR,
JSMSG_BAD_XML_NAMESPACE,
js_ValueToPrintableString(cx,
STRING_TO_JSVAL(prefix)));
return NULL;
}
localName = js_NewStringCopyN(cx, colon + 1, length - (offset + 1));
if (!localName)
return NULL;
} else {
if (isAttributeName) {
/*
* An unprefixed attribute is not in any namespace, so set prefix
* as well as uri to the empty string.
*/
prefix = uri;
} else {
/*
* Loop from back to front looking for the closest declared default
* namespace.
*/
n = inScopeNSes->length;
while (n != 0) {
--n;
ns = XMLARRAY_MEMBER(inScopeNSes, n, JSXMLNamespace);
if (!ns->prefix || IS_EMPTY(ns->prefix)) {
uri = ns->uri;
break;
}
}
prefix = IS_EMPTY(uri) ? cx->runtime->emptyString : NULL;
}
localName = str;
}
return js_NewXMLQName(cx, uri, prefix, localName);
}
static JSString *
ChompXMLWhitespace(JSContext *cx, JSString *str)
{
size_t length, newlength, offset;
const jschar *cp, *start, *end;
jschar c;
JSSTRING_CHARS_AND_LENGTH(str, start, length);
for (cp = start, end = cp + length; cp < end; cp++) {
c = *cp;
if (!JS_ISXMLSPACE(c))
break;
}
while (end > cp) {
c = end[-1];
if (!JS_ISXMLSPACE(c))
break;
--end;
}
newlength = PTRDIFF(end, cp, jschar);
if (newlength == length)
return str;
offset = PTRDIFF(cp, start, jschar);
return js_NewDependentString(cx, str, offset, newlength);
}
static JSXML *
ParseNodeToXML(JSContext *cx, JSParseNode *pn, JSXMLArray *inScopeNSes,
uintN flags)
{
JSXML *xml, *kid, *attr, *attrj;
JSString *str;
uint32 length, n, i, j;
JSParseNode *pn2, *pn3, *head, **pnp;
JSXMLNamespace *ns;
JSXMLQName *qn, *attrjqn;
JSXMLClass xml_class;
int stackDummy;
if (!JS_CHECK_STACK_SIZE(cx, stackDummy)) {
js_ReportCompileErrorNumber(cx, pn, JSREPORT_PN | JSREPORT_ERROR,
JSMSG_OVER_RECURSED);
return NULL;
}
#define PN2X_SKIP_CHILD ((JSXML *) 1)
/*
* Cases return early to avoid common code that gets an outermost xml's
* object, which protects GC-things owned by xml and its descendants from
* garbage collection.
*/
xml = NULL;
if (!js_EnterLocalRootScope(cx))
return NULL;
switch (pn->pn_type) {
case TOK_XMLELEM:
length = inScopeNSes->length;
pn2 = pn->pn_head;
xml = ParseNodeToXML(cx, pn2, inScopeNSes, flags);
if (!xml)
goto fail;
flags &= ~XSF_PRECOMPILED_ROOT;
n = pn->pn_count;
JS_ASSERT(n >= 2);
n -= 2;
if (!XMLArraySetCapacity(cx, &xml->xml_kids, n))
goto fail;
i = 0;
while ((pn2 = pn2->pn_next) != NULL) {
if (!pn2->pn_next) {
/* Don't append the end tag! */
JS_ASSERT(pn2->pn_type == TOK_XMLETAGO);
break;
}
if ((flags & XSF_IGNORE_WHITESPACE) &&
n > 1 && pn2->pn_type == TOK_XMLSPACE) {
--n;
continue;
}
kid = ParseNodeToXML(cx, pn2, inScopeNSes, flags);
if (kid == PN2X_SKIP_CHILD) {
--n;
continue;
}
if (!kid)
goto fail;
/* Store kid in xml right away, to protect it from GC. */
XMLARRAY_SET_MEMBER(&xml->xml_kids, i, kid);
kid->parent = xml;
++i;
/* XXX where is this documented in an XML spec, or in E4X? */
if ((flags & XSF_IGNORE_WHITESPACE) &&
n > 1 && kid->xml_class == JSXML_CLASS_TEXT) {
str = ChompXMLWhitespace(cx, kid->xml_value);
if (!str)
goto fail;
kid->xml_value = str;
}
}
JS_ASSERT(i == n);
if (n < pn->pn_count - 2)
XMLArrayTrim(&xml->xml_kids);
XMLARRAY_TRUNCATE(cx, inScopeNSes, length);
break;
case TOK_XMLLIST:
xml = js_NewXML(cx, JSXML_CLASS_LIST);
if (!xml)
goto fail;
n = pn->pn_count;
if (!XMLArraySetCapacity(cx, &xml->xml_kids, n))
goto fail;
i = 0;
for (pn2 = pn->pn_head; pn2; pn2 = pn2->pn_next) {
/*
* Always ignore insignificant whitespace in lists -- we shouldn't
* condition this on an XML.ignoreWhitespace setting when the list
* constructor is XMLList (note XML/XMLList unification hazard).
*/
if (pn2->pn_type == TOK_XMLSPACE) {
--n;
continue;
}
kid = ParseNodeToXML(cx, pn2, inScopeNSes, flags);
if (kid == PN2X_SKIP_CHILD) {
--n;
continue;
}
if (!kid)
goto fail;
XMLARRAY_SET_MEMBER(&xml->xml_kids, i, kid);
++i;
}
if (n < pn->pn_count)
XMLArrayTrim(&xml->xml_kids);
break;
case TOK_XMLSTAGO:
case TOK_XMLPTAGC:
length = inScopeNSes->length;
pn2 = pn->pn_head;
JS_ASSERT(pn2->pn_type == TOK_XMLNAME);
if (pn2->pn_arity == PN_LIST)
goto syntax;
xml = js_NewXML(cx, JSXML_CLASS_ELEMENT);
if (!xml)
goto fail;
/* First pass: check syntax and process namespace declarations. */
JS_ASSERT(pn->pn_count >= 1);
n = pn->pn_count - 1;
pnp = &pn2->pn_next;
head = *pnp;
while ((pn2 = *pnp) != NULL) {
size_t length;
const jschar *chars;
if (pn2->pn_type != TOK_XMLNAME || pn2->pn_arity != PN_NULLARY)
goto syntax;
/* Enforce "Well-formedness constraint: Unique Att Spec". */
for (pn3 = head; pn3 != pn2; pn3 = pn3->pn_next->pn_next) {
if (pn3->pn_atom == pn2->pn_atom) {
js_ReportCompileErrorNumber(cx, pn2,
JSREPORT_PN | JSREPORT_ERROR,
JSMSG_DUPLICATE_XML_ATTR,
js_ValueToPrintableString(cx,
ATOM_KEY(pn2->pn_atom)));
goto fail;
}
}
str = ATOM_TO_STRING(pn2->pn_atom);
pn2 = pn2->pn_next;
JS_ASSERT(pn2);
if (pn2->pn_type != TOK_XMLATTR)
goto syntax;
JSSTRING_CHARS_AND_LENGTH(str, chars, length);
if (length >= 5 &&
IS_XMLNS_CHARS(chars) &&
(length == 5 || chars[5] == ':')) {
JSString *uri, *prefix;
uri = ATOM_TO_STRING(pn2->pn_atom);
if (length == 5) {
/* 10.3.2.1. Step 6(h)(i)(1)(a). */
prefix = cx->runtime->emptyString;
} else {
prefix = js_NewStringCopyN(cx, chars + 6, length - 6);
if (!prefix)
goto fail;
}
/*
* Once the new ns is appended to xml->xml_namespaces, it is
* protected from GC by the object that owns xml -- which is
* either xml->object if outermost, or the object owning xml's
* oldest ancestor if !outermost.
*/
ns = js_NewXMLNamespace(cx, prefix, uri, JS_TRUE);
if (!ns)
goto fail;
/*
* Don't add a namespace that's already in scope. If someone
* extracts a child property from its parent via [[Get]], then
* we enforce the invariant, noted many times in ECMA-357, that
* the child's namespaces form a possibly-improper superset of
* its ancestors' namespaces.
*/
if (!XMLARRAY_HAS_MEMBER(inScopeNSes, ns, namespace_identity)) {
if (!XMLARRAY_APPEND(cx, inScopeNSes, ns) ||
!XMLARRAY_APPEND(cx, &xml->xml_namespaces, ns)) {
goto fail;
}
}
JS_ASSERT(n >= 2);
n -= 2;
*pnp = pn2->pn_next;
/* XXXbe recycle pn2 */
continue;
}
pnp = &pn2->pn_next;
}
/*
* If called from js_ParseNodeToXMLObject, emulate the effect of the
* <parent xmlns='%s'>...</parent> wrapping done by "ToXML Applied to
* the String Type" (ECMA-357 10.3.1).
*/
if (flags & XSF_PRECOMPILED_ROOT) {
JS_ASSERT(length >= 1);
ns = XMLARRAY_MEMBER(inScopeNSes, 0, JSXMLNamespace);
JS_ASSERT(!XMLARRAY_HAS_MEMBER(&xml->xml_namespaces, ns,
namespace_identity));
ns = js_NewXMLNamespace(cx, ns->prefix, ns->uri, JS_FALSE);
if (!ns)
goto fail;
if (!XMLARRAY_APPEND(cx, &xml->xml_namespaces, ns))
goto fail;
}
XMLArrayTrim(&xml->xml_namespaces);
/* Second pass: process tag name and attributes, using namespaces. */
pn2 = pn->pn_head;
qn = ParseNodeToQName(cx, pn2, inScopeNSes, JS_FALSE);
if (!qn)
goto fail;
xml->name = qn;
JS_ASSERT((n & 1) == 0);
n >>= 1;
if (!XMLArraySetCapacity(cx, &xml->xml_attrs, n))
goto fail;
for (i = 0; (pn2 = pn2->pn_next) != NULL; i++) {
qn = ParseNodeToQName(cx, pn2, inScopeNSes, JS_TRUE);
if (!qn) {
xml->xml_attrs.length = i;
goto fail;
}
/*
* Enforce "Well-formedness constraint: Unique Att Spec", part 2:
* this time checking local name and namespace URI.
*/
for (j = 0; j < i; j++) {
attrj = XMLARRAY_MEMBER(&xml->xml_attrs, j, JSXML);
attrjqn = attrj->name;
if (js_EqualStrings(attrjqn->uri, qn->uri) &&
js_EqualStrings(attrjqn->localName, qn->localName)) {
js_ReportCompileErrorNumber(cx, pn2,
JSREPORT_PN | JSREPORT_ERROR,
JSMSG_DUPLICATE_XML_ATTR,
js_ValueToPrintableString(cx,
ATOM_KEY(pn2->pn_atom)));
goto fail;
}
}
pn2 = pn2->pn_next;
JS_ASSERT(pn2);
JS_ASSERT(pn2->pn_type == TOK_XMLATTR);
attr = js_NewXML(cx, JSXML_CLASS_ATTRIBUTE);
if (!attr)
goto fail;
XMLARRAY_SET_MEMBER(&xml->xml_attrs, i, attr);
attr->parent = xml;
attr->name = qn;
attr->xml_value = ATOM_TO_STRING(pn2->pn_atom);
}
/* Point tag closes its own namespace scope. */
if (pn->pn_type == TOK_XMLPTAGC)
XMLARRAY_TRUNCATE(cx, inScopeNSes, length);
break;
case TOK_XMLSPACE:
case TOK_XMLTEXT:
case TOK_XMLCDATA:
case TOK_XMLCOMMENT:
case TOK_XMLPI:
str = ATOM_TO_STRING(pn->pn_atom);
qn = NULL;
if (pn->pn_type == TOK_XMLCOMMENT) {
if (flags & XSF_IGNORE_COMMENTS)
goto skip_child;
xml_class = JSXML_CLASS_COMMENT;
} else if (pn->pn_type == TOK_XMLPI) {
if (IS_XML(str)) {
js_ReportCompileErrorNumber(cx, pn,
JSREPORT_PN | JSREPORT_ERROR,
JSMSG_RESERVED_ID,
js_ValueToPrintableString(cx,
STRING_TO_JSVAL(str)));
goto fail;
}
if (flags & XSF_IGNORE_PROCESSING_INSTRUCTIONS)
goto skip_child;
qn = ParseNodeToQName(cx, pn, inScopeNSes, JS_FALSE);
if (!qn)
goto fail;
str = pn->pn_atom2
? ATOM_TO_STRING(pn->pn_atom2)
: cx->runtime->emptyString;
xml_class = JSXML_CLASS_PROCESSING_INSTRUCTION;
} else {
/* CDATA section content, or element text. */
xml_class = JSXML_CLASS_TEXT;
}
xml = js_NewXML(cx, xml_class);
if (!xml)
goto fail;
xml->name = qn;
if (pn->pn_type == TOK_XMLSPACE)
xml->xml_flags |= XMLF_WHITESPACE_TEXT;
xml->xml_value = str;
break;
default:
goto syntax;
}
js_LeaveLocalRootScopeWithResult(cx, (jsval) xml);
if ((flags & XSF_PRECOMPILED_ROOT) && !js_GetXMLObject(cx, xml))
return NULL;
return xml;
skip_child:
js_LeaveLocalRootScope(cx);
return PN2X_SKIP_CHILD;
#undef PN2X_SKIP_CHILD
syntax:
js_ReportCompileErrorNumber(cx, pn, JSREPORT_PN | JSREPORT_ERROR,
JSMSG_BAD_XML_MARKUP);
fail:
js_LeaveLocalRootScope(cx);
return NULL;
}
/*
* XML helper, object-ops, and library functions. We start with the helpers,
* in ECMA-357 order, but merging XML (9.1) and XMLList (9.2) helpers.
*/
static JSBool
GetXMLSetting(JSContext *cx, const char *name, jsval *vp)
{
jsval v;
if (!js_FindClassObject(cx, NULL, INT_TO_JSID(JSProto_XML), &v))
return JS_FALSE;
if (!VALUE_IS_FUNCTION(cx, v)) {
*vp = JSVAL_VOID;
return JS_TRUE;
}
return JS_GetProperty(cx, JSVAL_TO_OBJECT(v), name, vp);
}
static JSBool
FillSettingsCache(JSContext *cx)
{
int i;
const char *name;
jsval v;
JSBool isSet;
/* Note: XML_PRETTY_INDENT is not a boolean setting. */
for (i = XML_IGNORE_COMMENTS; i < XML_PRETTY_INDENT; i++) {
name = xml_static_props[i].name;
if (!GetXMLSetting(cx, name, &v) || !js_ValueToBoolean(cx, v, &isSet))
return JS_FALSE;
if (isSet)
cx->xmlSettingFlags |= JS_BIT(i);
else
cx->xmlSettingFlags &= ~JS_BIT(i);
}
cx->xmlSettingFlags |= XSF_CACHE_VALID;
return JS_TRUE;
}
static JSBool
GetBooleanXMLSetting(JSContext *cx, const char *name, JSBool *bp)
{
int i;
if (!(cx->xmlSettingFlags & XSF_CACHE_VALID) && !FillSettingsCache(cx))
return JS_FALSE;
for (i = 0; xml_static_props[i].name; i++) {
if (!strcmp(xml_static_props[i].name, name)) {
*bp = (cx->xmlSettingFlags & JS_BIT(i)) != 0;
return JS_TRUE;
}
}
*bp = JS_FALSE;
return JS_TRUE;
}
static JSBool
GetUint32XMLSetting(JSContext *cx, const char *name, uint32 *uip)
{
jsval v;
return GetXMLSetting(cx, name, &v) && js_ValueToECMAUint32(cx, v, uip);
}
static JSBool
GetXMLSettingFlags(JSContext *cx, uintN *flagsp)
{
JSBool flag;
/* Just get the first flag to validate the setting flags cache. */
if (!GetBooleanXMLSetting(cx, js_ignoreComments_str, &flag))
return JS_FALSE;
*flagsp = cx->xmlSettingFlags;
return JS_TRUE;
}
static JSXML *
ParseXMLSource(JSContext *cx, JSString *src)
{
jsval nsval;
JSXMLNamespace *ns;
size_t urilen, srclen, length, offset, dstlen;
jschar *chars;
const jschar *srcp, *endp;
JSXML *xml;
JSParseContext pc;
const char *filename;
uintN lineno;
JSStackFrame *fp;
JSOp op;
JSParseNode *pn;
JSXMLArray nsarray;
uintN flags;
static const char prefix[] = "<parent xmlns='";
static const char middle[] = "'>";
static const char suffix[] = "</parent>";
#define constrlen(constr) (sizeof(constr) - 1)
if (!js_GetDefaultXMLNamespace(cx, &nsval))
return NULL;
ns = (JSXMLNamespace *) JS_GetPrivate(cx, JSVAL_TO_OBJECT(nsval));
urilen = JSSTRING_LENGTH(ns->uri);
srclen = JSSTRING_LENGTH(src);
length = constrlen(prefix) + urilen + constrlen(middle) + srclen +
constrlen(suffix);
chars = (jschar *) JS_malloc(cx, (length + 1) * sizeof(jschar));
if (!chars)
return NULL;
dstlen = length;
js_InflateStringToBuffer(cx, prefix, constrlen(prefix), chars, &dstlen);
offset = dstlen;
js_strncpy(chars + offset, JSSTRING_CHARS(ns->uri), urilen);
offset += urilen;
dstlen = length - offset + 1;
js_InflateStringToBuffer(cx, middle, constrlen(middle), chars + offset,
&dstlen);
offset += dstlen;
srcp = JSSTRING_CHARS(src);
js_strncpy(chars + offset, srcp, srclen);
offset += srclen;
dstlen = length - offset + 1;
js_InflateStringToBuffer(cx, suffix, constrlen(suffix), chars + offset,
&dstlen);
chars [offset + dstlen] = 0;
xml = NULL;
for (fp = cx->fp; fp && !fp->pc; fp = fp->down)
JS_ASSERT(!fp->script);
filename = NULL;
lineno = 1;
if (fp) {
op = (JSOp) *fp->pc;
if (op == JSOP_TOXML || op == JSOP_TOXMLLIST) {
filename = fp->script->filename;
lineno = js_PCToLineNumber(cx, fp->script, fp->pc);
for (endp = srcp + srclen; srcp < endp; srcp++) {
if (*srcp == '\n')
--lineno;
}
}
}
if (!js_InitParseContext(cx, &pc, chars, length, NULL, filename, lineno))
goto out;
pn = js_ParseXMLText(cx, cx->fp->scopeChain, &pc, JS_FALSE);
if (pn && XMLArrayInit(cx, &nsarray, 1)) {
if (GetXMLSettingFlags(cx, &flags))
xml = ParseNodeToXML(cx, pn, &nsarray, flags);
XMLArrayFinish(cx, &nsarray);
}
js_FinishParseContext(cx, &pc);
out:
JS_free(cx, chars);
return xml;
#undef constrlen
}
/*
* Errata in 10.3.1, 10.4.1, and 13.4.4.24 (at least).
*
* 10.3.1 Step 6(a) fails to NOTE that implementations that do not enforce
* the constraint:
*
* for all x belonging to XML:
* x.[[InScopeNamespaces]] >= x.[[Parent]].[[InScopeNamespaces]]
*
* must union x.[[InScopeNamespaces]] into x[0].[[InScopeNamespaces]] here
* (in new sub-step 6(a), renumbering the others to (b) and (c)).
*
* Same goes for 10.4.1 Step 7(a).
*
* In order for XML.prototype.namespaceDeclarations() to work correctly, the
* default namespace thereby unioned into x[0].[[InScopeNamespaces]] must be
* flagged as not declared, so that 13.4.4.24 Step 8(a) can exclude all such
* undeclared namespaces associated with x not belonging to ancestorNS.
*/
static JSXML *
OrphanXMLChild(JSContext *cx, JSXML *xml, uint32 i)
{
JSXMLNamespace *ns;
ns = XMLARRAY_MEMBER(&xml->xml_namespaces, 0, JSXMLNamespace);
xml = XMLARRAY_MEMBER(&xml->xml_kids, i, JSXML);
if (!ns || !xml)
return xml;
if (xml->xml_class == JSXML_CLASS_ELEMENT) {
if (!XMLARRAY_APPEND(cx, &xml->xml_namespaces, ns))
return NULL;
ns->declared = JS_FALSE;
}
xml->parent = NULL;
return xml;
}
static JSObject *
ToXML(JSContext *cx, jsval v)
{
JSObject *obj;
JSXML *xml;
JSClass *clasp;
JSString *str;
uint32 length;
if (JSVAL_IS_PRIMITIVE(v)) {
if (JSVAL_IS_NULL(v) || JSVAL_IS_VOID(v))
goto bad;
} else {
obj = JSVAL_TO_OBJECT(v);
if (OBJECT_IS_XML(cx, obj)) {
xml = (JSXML *) JS_GetPrivate(cx, obj);
if (xml->xml_class == JSXML_CLASS_LIST) {
if (xml->xml_kids.length != 1)
goto bad;
xml = XMLARRAY_MEMBER(&xml->xml_kids, 0, JSXML);
if (xml) {
JS_ASSERT(xml->xml_class != JSXML_CLASS_LIST);
return js_GetXMLObject(cx, xml);
}
}
return obj;
}
clasp = OBJ_GET_CLASS(cx, obj);
if (clasp->flags & JSCLASS_DOCUMENT_OBSERVER) {
JS_ASSERT(0);
}
if (clasp != &js_StringClass &&
clasp != &js_NumberClass &&
clasp != &js_BooleanClass) {
goto bad;
}
}
str = js_ValueToString(cx, v);
if (!str)
return NULL;
if (IS_EMPTY(str)) {
length = 0;
#ifdef __GNUC__ /* suppress bogus gcc warnings */
xml = NULL;
#endif
} else {
xml = ParseXMLSource(cx, str);
if (!xml)
return NULL;
length = JSXML_LENGTH(xml);
}
if (length == 0) {
obj = js_NewXMLObject(cx, JSXML_CLASS_TEXT);
if (!obj)
return NULL;
} else if (length == 1) {
xml = OrphanXMLChild(cx, xml, 0);
if (!xml)
return NULL;
obj = js_GetXMLObject(cx, xml);
if (!obj)
return NULL;
} else {
JS_ReportErrorNumber(cx, js_GetErrorMessage, NULL, JSMSG_SYNTAX_ERROR);
return NULL;
}
return obj;
bad:
js_ReportValueError(cx, JSMSG_BAD_XML_CONVERSION,
JSDVG_IGNORE_STACK, v, NULL);
return NULL;
}
static JSBool
Append(JSContext *cx, JSXML *list, JSXML *kid);
static JSObject *
ToXMLList(JSContext *cx, jsval v)
{
JSObject *obj, *listobj;
JSXML *xml, *list, *kid;
JSClass *clasp;
JSString *str;
uint32 i, length;
if (JSVAL_IS_PRIMITIVE(v)) {
if (JSVAL_IS_NULL(v) || JSVAL_IS_VOID(v))
goto bad;
} else {
obj = JSVAL_TO_OBJECT(v);
if (OBJECT_IS_XML(cx, obj)) {
xml = (JSXML *) JS_GetPrivate(cx, obj);
if (xml->xml_class != JSXML_CLASS_LIST) {
listobj = js_NewXMLObject(cx, JSXML_CLASS_LIST);
if (!listobj)
return NULL;
list = (JSXML *) JS_GetPrivate(cx, listobj);
if (!Append(cx, list, xml))
return NULL;
return listobj;
}
return obj;
}
clasp = OBJ_GET_CLASS(cx, obj);
if (clasp->flags & JSCLASS_DOCUMENT_OBSERVER) {
JS_ASSERT(0);
}
if (clasp != &js_StringClass &&
clasp != &js_NumberClass &&
clasp != &js_BooleanClass) {
goto bad;
}
}
str = js_ValueToString(cx, v);
if (!str)
return NULL;
if (IS_EMPTY(str)) {
xml = NULL;
length = 0;
} else {
if (!js_EnterLocalRootScope(cx))
return NULL;
xml = ParseXMLSource(cx, str);
if (!xml) {
js_LeaveLocalRootScope(cx);
return NULL;
}
length = JSXML_LENGTH(xml);
}
listobj = js_NewXMLObject(cx, JSXML_CLASS_LIST);
if (listobj) {
list = (JSXML *) JS_GetPrivate(cx, listobj);
for (i = 0; i < length; i++) {
kid = OrphanXMLChild(cx, xml, i);
if (!kid || !Append(cx, list, kid)) {
listobj = NULL;
break;
}
}
}
if (xml)
js_LeaveLocalRootScopeWithResult(cx, (jsval) listobj);
return listobj;
bad:
js_ReportValueError(cx, JSMSG_BAD_XMLLIST_CONVERSION,
JSDVG_IGNORE_STACK, v, NULL);
return NULL;
}
/*
* ECMA-357 10.2.1 Steps 5-7 pulled out as common subroutines of XMLToXMLString
* and their library-public js_* counterparts. The guts of MakeXMLCDataString,
* MakeXMLCommentString, and MakeXMLPIString are further factored into a common
* MakeXMLSpecialString subroutine.
*
* These functions take ownership of sb->base, if sb is non-null, in all cases
* of success or failure.
*/
static JSString *
MakeXMLSpecialString(JSContext *cx, JSStringBuffer *sb,
JSString *str, JSString *str2,
const jschar *prefix, size_t prefixlength,
const jschar *suffix, size_t suffixlength)
{
JSStringBuffer localSB;
size_t length, length2, newlength;
jschar *bp, *base;
if (!sb) {
sb = &localSB;
js_InitStringBuffer(sb);
}
length = JSSTRING_LENGTH(str);
length2 = str2 ? JSSTRING_LENGTH(str2) : 0;
newlength = STRING_BUFFER_OFFSET(sb) +
prefixlength + length + ((length2 != 0) ? 1 + length2 : 0) +
suffixlength;
bp = base = (jschar *)
JS_realloc(cx, sb->base, (newlength + 1) * sizeof(jschar));
if (!bp) {
js_FinishStringBuffer(sb);
return NULL;
}
bp += STRING_BUFFER_OFFSET(sb);
js_strncpy(bp, prefix, prefixlength);
bp += prefixlength;
js_strncpy(bp, JSSTRING_CHARS(str), length);
bp += length;
if (length2 != 0) {
*bp++ = (jschar) ' ';
js_strncpy(bp, JSSTRING_CHARS(str2), length2);
bp += length2;
}
js_strncpy(bp, suffix, suffixlength);
bp[suffixlength] = 0;
str = js_NewString(cx, base, newlength);
if (!str)
free(base);
return str;
}
static JSString *
MakeXMLCDATAString(JSContext *cx, JSStringBuffer *sb, JSString *str)
{
static const jschar cdata_prefix_ucNstr[] = {'<', '!', '[',
'C', 'D', 'A', 'T', 'A',
'['};
static const jschar cdata_suffix_ucNstr[] = {']', ']', '>'};
return MakeXMLSpecialString(cx, sb, str, NULL,
cdata_prefix_ucNstr, 9,
cdata_suffix_ucNstr, 3);
}
static JSString *
MakeXMLCommentString(JSContext *cx, JSStringBuffer *sb, JSString *str)
{
static const jschar comment_prefix_ucNstr[] = {'<', '!', '-', '-'};
static const jschar comment_suffix_ucNstr[] = {'-', '-', '>'};
return MakeXMLSpecialString(cx, sb, str, NULL,
comment_prefix_ucNstr, 4,
comment_suffix_ucNstr, 3);
}
static JSString *
MakeXMLPIString(JSContext *cx, JSStringBuffer *sb, JSString *name,
JSString *value)
{
static const jschar pi_prefix_ucNstr[] = {'<', '?'};
static const jschar pi_suffix_ucNstr[] = {'?', '>'};
return MakeXMLSpecialString(cx, sb, name, value,
pi_prefix_ucNstr, 2,
pi_suffix_ucNstr, 2);
}
/*
* ECMA-357 10.2.1 17(d-g) pulled out into a common subroutine that appends
* equals, a double quote, an attribute value, and a closing double quote.
*/
static void
AppendAttributeValue(JSContext *cx, JSStringBuffer *sb, JSString *valstr)
{
js_AppendCString(sb, "=\"");
valstr = js_EscapeAttributeValue(cx, valstr);
if (!valstr) {
if (STRING_BUFFER_OK(sb)) {
free(sb->base);
sb->base = STRING_BUFFER_ERROR_BASE;
}
return;
}
js_AppendJSString(sb, valstr);
js_AppendChar(sb, '"');
}
/*
* ECMA-357 10.2.1.1 EscapeElementValue helper method.
*
* This function takes ownership of sb->base, if sb is non-null, in all cases
* of success or failure.
*/
static JSString *
EscapeElementValue(JSContext *cx, JSStringBuffer *sb, JSString *str)
{
size_t length, newlength;
const jschar *cp, *start, *end;
jschar c;
JSSTRING_CHARS_AND_LENGTH(str, start, length);
newlength = length;
for (cp = start, end = cp + length; cp < end; cp++) {
c = *cp;
if (c == '<' || c == '>')
newlength += 3;
else if (c == '&')
newlength += 4;
if (newlength < length) {
JS_ReportOutOfMemory(cx);
return NULL;
}
}
if ((sb && STRING_BUFFER_OFFSET(sb) != 0) || newlength > length) {
JSStringBuffer localSB;
if (!sb) {
sb = &localSB;
js_InitStringBuffer(sb);
}
if (!sb->grow(sb, newlength)) {
JS_ReportOutOfMemory(cx);
return NULL;
}
for (cp = start; cp < end; cp++) {
c = *cp;
if (c == '<')
js_AppendCString(sb, js_lt_entity_str);
else if (c == '>')
js_AppendCString(sb, js_gt_entity_str);
else if (c == '&')
js_AppendCString(sb, js_amp_entity_str);
else
js_AppendChar(sb, c);
}
JS_ASSERT(STRING_BUFFER_OK(sb));
str = js_NewString(cx, sb->base, STRING_BUFFER_OFFSET(sb));
if (!str)
js_FinishStringBuffer(sb);
}
return str;
}
/*
* ECMA-357 10.2.1.2 EscapeAttributeValue helper method.
* This function takes ownership of sb->base, if sb is non-null, in all cases.
*/
static JSString *
EscapeAttributeValue(JSContext *cx, JSStringBuffer *sb, JSString *str)
{
size_t length, newlength;
const jschar *cp, *start, *end;
jschar c;
JSSTRING_CHARS_AND_LENGTH(str, start, length);
newlength = length;
for (cp = start, end = cp + length; cp < end; cp++) {
c = *cp;
if (c == '"')
newlength += 5;
else if (c == '<')
newlength += 3;
else if (c == '&' || c == '\n' || c == '\r' || c == '\t')
newlength += 4;
if (newlength < length) {
JS_ReportOutOfMemory(cx);
return NULL;
}
}
if ((sb && STRING_BUFFER_OFFSET(sb) != 0) || newlength > length) {
JSStringBuffer localSB;
if (!sb) {
sb = &localSB;
js_InitStringBuffer(sb);
}
if (!sb->grow(sb, newlength)) {
JS_ReportOutOfMemory(cx);
return NULL;
}
for (cp = start; cp < end; cp++) {
c = *cp;
if (c == '"')
js_AppendCString(sb, js_quot_entity_str);
else if (c == '<')
js_AppendCString(sb, js_lt_entity_str);
else if (c == '&')
js_AppendCString(sb, js_amp_entity_str);
else if (c == '\n')
js_AppendCString(sb, "&#xA;");
else if (c == '\r')
js_AppendCString(sb, "&#xD;");
else if (c == '\t')
js_AppendCString(sb, "&#x9;");
else
js_AppendChar(sb, c);
}
JS_ASSERT(STRING_BUFFER_OK(sb));
str = js_NewString(cx, sb->base, STRING_BUFFER_OFFSET(sb));
if (!str)
js_FinishStringBuffer(sb);
}
return str;
}
/* 13.3.5.4 [[GetNamespace]]([InScopeNamespaces]) */
static JSXMLNamespace *
GetNamespace(JSContext *cx, JSXMLQName *qn, const JSXMLArray *inScopeNSes)
{
JSXMLNamespace *match, *ns;
uint32 i, n;
jsval argv[2];
JSObject *nsobj;
JS_ASSERT(qn->uri);
if (!qn->uri) {
JS_ReportErrorNumber(cx, js_GetErrorMessage, NULL,
JSMSG_BAD_XML_NAMESPACE,
qn->prefix
? js_ValueToPrintableString(cx,
STRING_TO_JSVAL(qn->prefix))
: js_undefined_str);
return NULL;
}
/* Look for a matching namespace in inScopeNSes, if provided. */
match = NULL;
if (inScopeNSes) {
for (i = 0, n = inScopeNSes->length; i < n; i++) {
ns = XMLARRAY_MEMBER(inScopeNSes, i, JSXMLNamespace);
if (!ns)
continue;
/*
* Erratum, very tricky, and not specified in ECMA-357 13.3.5.4:
* If we preserve prefixes, we must match null qn->prefix against
* an empty ns->prefix, in order to avoid generating redundant
* prefixed and default namespaces for cases such as:
*
* x = <t xmlns="http://foo.com"/>
* print(x.toXMLString());
*
* Per 10.3.2.1, the namespace attribute in t has an empty string
* prefix (*not* a null prefix), per 10.3.2.1 Step 6(h)(i)(1):
*
* 1. If the [local name] property of a is "xmlns"
* a. Map ns.prefix to the empty string
*
* But t's name has a null prefix in this implementation, meaning
* *undefined*, per 10.3.2.1 Step 6(c)'s NOTE (which refers to
* the http://www.w3.org/TR/xml-infoset/ spec, item 2.2.3, without
* saying how "no value" maps to an ECMA-357 value -- but it must
* map to the *undefined* prefix value).
*
* Since "" != undefined (or null, in the current implementation)
* the ECMA-357 spec will fail to match in [[GetNamespace]] called
* on t with argument {} U {(prefix="", uri="http://foo.com")}.
* This spec bug leads to ToXMLString results that duplicate the
* declared namespace.
*/
if (js_EqualStrings(ns->uri, qn->uri) &&
(ns->prefix == qn->prefix ||
((ns->prefix && qn->prefix)
? js_EqualStrings(ns->prefix, qn->prefix)
: IS_EMPTY(ns->prefix ? ns->prefix : qn->prefix)))) {
match = ns;
break;
}
}
}
/* If we didn't match, make a new namespace from qn. */
if (!match) {
argv[0] = qn->prefix ? STRING_TO_JSVAL(qn->prefix) : JSVAL_VOID;
argv[1] = STRING_TO_JSVAL(qn->uri);
nsobj = js_ConstructObject(cx, &js_NamespaceClass.base, NULL, NULL,
2, argv);
if (!nsobj)
return NULL;
match = (JSXMLNamespace *) JS_GetPrivate(cx, nsobj);
}
return match;
}
static JSString *
GeneratePrefix(JSContext *cx, JSString *uri, JSXMLArray *decls)
{
const jschar *cp, *start, *end;
size_t length, newlength, offset;
uint32 i, n, m, serial;
jschar *bp, *dp;
JSBool done;
JSXMLNamespace *ns;
JSString *prefix;
JS_ASSERT(!IS_EMPTY(uri));
/*
* If there are no *declared* namespaces, skip all collision detection and
* return a short prefix quickly; an example of such a situation:
*
* var x = <f/>;
* var n = new Namespace("http://example.com/");
* x.@n::att = "val";
* x.toXMLString();
*
* This is necessary for various log10 uses below to be valid.
*/
if (decls->length == 0)
return JS_NewStringCopyZ(cx, "a");
/*
* Try peeling off the last filename suffix or pathname component till
* we have a valid XML name. This heuristic will prefer "xul" given
* ".../there.is.only.xul", "xbl" given ".../xbl", and "xbl2" given any
* likely URI of the form ".../xbl2/2005".
*/
JSSTRING_CHARS_AND_END(uri, start, end);
cp = end;
while (--cp > start) {
if (*cp == '.' || *cp == '/' || *cp == ':') {
++cp;
length = PTRDIFF(end, cp, jschar);
if (IsXMLName(cp, length) && !STARTS_WITH_XML(cp, length))
break;
end = --cp;
}
}
length = PTRDIFF(end, cp, jschar);
/*
* If the namespace consisted only of non-XML names or names that begin
* case-insensitively with "xml", arbitrarily create a prefix consisting
* of 'a's of size length (allowing dp-calculating code to work with or
* without this branch executing) plus the space for storing a hyphen and
* the serial number (avoiding reallocation if a collision happens).
*/
bp = (jschar *) cp;
newlength = length;
if (STARTS_WITH_XML(cp, length) || !IsXMLName(cp, length)) {
newlength = length + 2 + (size_t) log10((double) decls->length);
bp = (jschar *)
JS_malloc(cx, (newlength + 1) * sizeof(jschar));
if (!bp)
return NULL;
bp[newlength] = 0;
for (i = 0; i < newlength; i++)
bp[i] = 'a';
}
/*
* Now search through decls looking for a collision. If we collide with
* an existing prefix, start tacking on a hyphen and a serial number.
*/
serial = 0;
do {
done = JS_TRUE;
for (i = 0, n = decls->length; i < n; i++) {
ns = XMLARRAY_MEMBER(decls, i, JSXMLNamespace);
if (ns && ns->prefix &&
JSSTRING_LENGTH(ns->prefix) == newlength &&
!memcmp(JSSTRING_CHARS(ns->prefix), bp,
newlength * sizeof(jschar))) {
if (bp == cp) {
newlength = length + 2 + (size_t) log10((double) n);
bp = (jschar *)
JS_malloc(cx, (newlength + 1) * sizeof(jschar));
if (!bp)
return NULL;
js_strncpy(bp, cp, length);
}
++serial;
JS_ASSERT(serial <= n);
dp = bp + length + 2 + (size_t) log10((double) serial);
*dp = 0;
for (m = serial; m != 0; m /= 10)
*--dp = (jschar)('0' + m % 10);
*--dp = '-';
JS_ASSERT(dp == bp + length);
done = JS_FALSE;
break;
}
}
} while (!done);
if (bp == cp) {
offset = PTRDIFF(cp, start, jschar);
prefix = js_NewDependentString(cx, uri, offset, length);
} else {
prefix = js_NewString(cx, bp, newlength);
if (!prefix)
JS_free(cx, bp);
}
return prefix;
}
static JSBool
namespace_match(const void *a, const void *b)
{
const JSXMLNamespace *nsa = (const JSXMLNamespace *) a;
const JSXMLNamespace *nsb = (const JSXMLNamespace *) b;
if (nsb->prefix)
return nsa->prefix && js_EqualStrings(nsa->prefix, nsb->prefix);
return js_EqualStrings(nsa->uri, nsb->uri);
}
/* ECMA-357 10.2.1 and 10.2.2 */
static JSString *
XMLToXMLString(JSContext *cx, JSXML *xml, const JSXMLArray *ancestorNSes,
uintN indentLevel)
{
JSBool pretty, indentKids;
JSStringBuffer sb;
JSString *str, *prefix, *kidstr;
JSXMLArrayCursor cursor;
uint32 i, n;
JSXMLArray empty, decls, ancdecls;
JSXMLNamespace *ns, *ns2;
uintN nextIndentLevel;
JSXML *attr, *kid;
if (!GetBooleanXMLSetting(cx, js_prettyPrinting_str, &pretty))
return NULL;
js_InitStringBuffer(&sb);
if (pretty) {
js_RepeatChar(&sb, ' ', indentLevel);
if (!STRING_BUFFER_OK(&sb)) {
JS_ReportOutOfMemory(cx);
return NULL;
}
}
str = NULL;
switch (xml->xml_class) {
case JSXML_CLASS_TEXT:
/* Step 4. */
if (pretty) {
str = ChompXMLWhitespace(cx, xml->xml_value);
if (!str)
return NULL;
} else {
str = xml->xml_value;
}
return EscapeElementValue(cx, &sb, str);
case JSXML_CLASS_ATTRIBUTE:
/* Step 5. */
return EscapeAttributeValue(cx, &sb, xml->xml_value);
case JSXML_CLASS_COMMENT:
/* Step 6. */
return MakeXMLCommentString(cx, &sb, xml->xml_value);
case JSXML_CLASS_PROCESSING_INSTRUCTION:
/* Step 7. */
return MakeXMLPIString(cx, &sb, xml->name->localName, xml->xml_value);
case JSXML_CLASS_LIST:
/* ECMA-357 10.2.2. */
XMLArrayCursorInit(&cursor, &xml->xml_kids);
i = 0;
while ((kid = (JSXML *) XMLArrayCursorNext(&cursor)) != NULL) {
if (pretty && i != 0)
js_AppendChar(&sb, '\n');
kidstr = XMLToXMLString(cx, kid, ancestorNSes, indentLevel);
if (!kidstr)
break;
js_AppendJSString(&sb, kidstr);
++i;
}
XMLArrayCursorFinish(&cursor);
if (kid)
goto list_out;
if (!sb.base)
return cx->runtime->emptyString;
if (!STRING_BUFFER_OK(&sb)) {
JS_ReportOutOfMemory(cx);
return NULL;
}
str = js_NewString(cx, sb.base, STRING_BUFFER_OFFSET(&sb));
list_out:
if (!str && STRING_BUFFER_OK(&sb))
js_FinishStringBuffer(&sb);
return str;
default:;
}
/* After this point, control must flow through label out: to exit. */
if (!js_EnterLocalRootScope(cx))
return NULL;
/* ECMA-357 10.2.1 step 8 onward: handle ToXMLString on an XML element. */
if (!ancestorNSes) {
XMLArrayInit(cx, &empty, 0);
ancestorNSes = &empty;
}
XMLArrayInit(cx, &decls, 0);
ancdecls.capacity = 0;
/* Clone in-scope namespaces not in ancestorNSes into decls. */
XMLArrayCursorInit(&cursor, &xml->xml_namespaces);
while ((ns = (JSXMLNamespace *) XMLArrayCursorNext(&cursor)) != NULL) {
if (!ns->declared)
continue;
if (!XMLARRAY_HAS_MEMBER(ancestorNSes, ns, namespace_identity)) {
/* NOTE: may want to exclude unused namespaces here. */
ns2 = js_NewXMLNamespace(cx, ns->prefix, ns->uri, JS_TRUE);
if (!ns2 || !XMLARRAY_APPEND(cx, &decls, ns2))
break;
}
}
XMLArrayCursorFinish(&cursor);
if (ns)
goto out;
/*
* Union ancestorNSes and decls into ancdecls. Note that ancdecls does
* not own its member references. In the spec, ancdecls has no name, but
* is always written out as (AncestorNamespaces U namespaceDeclarations).
*/
if (!XMLArrayInit(cx, &ancdecls, ancestorNSes->length + decls.length))
goto out;
for (i = 0, n = ancestorNSes->length; i < n; i++) {
ns2 = XMLARRAY_MEMBER(ancestorNSes, i, JSXMLNamespace);
if (!ns2)
continue;
JS_ASSERT(!XMLARRAY_HAS_MEMBER(&decls, ns2, namespace_identity));
if (!XMLARRAY_APPEND(cx, &ancdecls, ns2))
goto out;
}
for (i = 0, n = decls.length; i < n; i++) {
ns2 = XMLARRAY_MEMBER(&decls, i, JSXMLNamespace);
if (!ns2)
continue;
JS_ASSERT(!XMLARRAY_HAS_MEMBER(&ancdecls, ns2, namespace_identity));
if (!XMLARRAY_APPEND(cx, &ancdecls, ns2))
goto out;
}
/* Step 11, except we don't clone ns unless its prefix is undefined. */
ns = GetNamespace(cx, xml->name, &ancdecls);
if (!ns)
goto out;
/* Step 12 (NULL means *undefined* here), plus the deferred ns cloning. */
if (!ns->prefix) {
/*
* Create a namespace prefix that isn't used by any member of decls.
* Assign the new prefix to a copy of ns. Flag this namespace as if
* it were declared, for assertion-testing's sake later below.
*
* Erratum: if ns->prefix and xml->name are both null (*undefined* in
* ECMA-357), we know that xml was named using the default namespace
* (proof: see GetNamespace and the Namespace constructor called with
* two arguments). So we ought not generate a new prefix here, when
* we can declare ns as the default namespace for xml.
*
* This helps descendants inherit the namespace instead of redundantly
* redeclaring it with generated prefixes in each descendant.
*/
if (!xml->name->prefix) {
prefix = cx->runtime->emptyString;
} else {
prefix = GeneratePrefix(cx, ns->uri, &ancdecls);
if (!prefix)
goto out;
}
ns = js_NewXMLNamespace(cx, prefix, ns->uri, JS_TRUE);
if (!ns)
goto out;
/*
* If the xml->name was unprefixed, we must remove any declared default
* namespace from decls before appending ns. How can you get a default
* namespace in decls that doesn't match the one from name? Apparently
* by calling x.setNamespace(ns) where ns has no prefix. The other way
* to fix this is to update x's in-scope namespaces when setNamespace
* is called, but that's not specified by ECMA-357.
*
* Likely Erratum here, depending on whether the lack of update to x's
* in-scope namespace in XML.prototype.setNamespace (13.4.4.36) is an
* erratum or not. Note that changing setNamespace to update the list
* of in-scope namespaces will change x.namespaceDeclarations().
*/
if (IS_EMPTY(prefix)) {
i = XMLArrayFindMember(&decls, ns, namespace_match);
if (i != XML_NOT_FOUND)
XMLArrayDelete(cx, &decls, i, JS_TRUE);
}
/*
* In the spec, ancdecls has no name, but is always written out as
* (AncestorNamespaces U namespaceDeclarations). Since we compute
* that union in ancdecls, any time we append a namespace strong
* ref to decls, we must also append a weak ref to ancdecls. Order
* matters here: code at label out: releases strong refs in decls.
*/
if (!XMLARRAY_APPEND(cx, &ancdecls, ns) ||
!XMLARRAY_APPEND(cx, &decls, ns)) {
goto out;
}
}
/* Format the element or point-tag into sb. */
js_AppendChar(&sb, '<');
if (ns->prefix && !IS_EMPTY(ns->prefix)) {
js_AppendJSString(&sb, ns->prefix);
js_AppendChar(&sb, ':');
}
js_AppendJSString(&sb, xml->name->localName);
/*
* Step 16 makes a union to avoid writing two loops in step 17, to share
* common attribute value appending spec-code. We prefer two loops for
* faster code and less data overhead.
*/
/* Step 17(b): append attributes. */
XMLArrayCursorInit(&cursor, &xml->xml_attrs);
while ((attr = (JSXML *) XMLArrayCursorNext(&cursor)) != NULL) {
js_AppendChar(&sb, ' ');
ns2 = GetNamespace(cx, attr->name, &ancdecls);
if (!ns2)
break;
/* 17(b)(ii): NULL means *undefined* here. */
if (!ns2->prefix) {
prefix = GeneratePrefix(cx, ns2->uri, &ancdecls);
if (!prefix)
break;
/* Again, we avoid copying ns2 until we know it's prefix-less. */
ns2 = js_NewXMLNamespace(cx, prefix, ns2->uri, JS_TRUE);
if (!ns2)
break;
/*
* In the spec, ancdecls has no name, but is always written out as
* (AncestorNamespaces U namespaceDeclarations). Since we compute
* that union in ancdecls, any time we append a namespace strong
* ref to decls, we must also append a weak ref to ancdecls. Order
* matters here: code at label out: releases strong refs in decls.
*/
if (!XMLARRAY_APPEND(cx, &ancdecls, ns2) ||
!XMLARRAY_APPEND(cx, &decls, ns2)) {
break;
}
}
/* 17(b)(iii). */
if (!IS_EMPTY(ns2->prefix)) {
js_AppendJSString(&sb, ns2->prefix);
js_AppendChar(&sb, ':');
}
/* 17(b)(iv). */
js_AppendJSString(&sb, attr->name->localName);
/* 17(d-g). */
AppendAttributeValue(cx, &sb, attr->xml_value);
}
XMLArrayCursorFinish(&cursor);
if (attr)
goto out;
/* Step 17(c): append XML namespace declarations. */
XMLArrayCursorInit(&cursor, &decls);
while ((ns2 = (JSXMLNamespace *) XMLArrayCursorNext(&cursor)) != NULL) {
JS_ASSERT(ns2->declared);
js_AppendCString(&sb, " xmlns");
/* 17(c)(ii): NULL means *undefined* here. */
if (!ns2->prefix) {
prefix = GeneratePrefix(cx, ns2->uri, &ancdecls);
if (!prefix)
break;
ns2->prefix = prefix;
}
/* 17(c)(iii). */
if (!IS_EMPTY(ns2->prefix)) {
js_AppendChar(&sb, ':');
js_AppendJSString(&sb, ns2->prefix);
}
/* 17(d-g). */
AppendAttributeValue(cx, &sb, ns2->uri);
}
XMLArrayCursorFinish(&cursor);
if (ns2)
goto out;
/* Step 18: handle point tags. */
n = xml->xml_kids.length;
if (n == 0) {
js_AppendCString(&sb, "/>");
} else {
/* Steps 19 through 25: handle element content, and open the end-tag. */
js_AppendChar(&sb, '>');
indentKids = n > 1 ||
(n == 1 &&
(kid = XMLARRAY_MEMBER(&xml->xml_kids, 0, JSXML)) &&
kid->xml_class != JSXML_CLASS_TEXT);
if (pretty && indentKids) {
if (!GetUint32XMLSetting(cx, js_prettyIndent_str, &i))
goto out;
nextIndentLevel = indentLevel + i;
} else {
nextIndentLevel = 0;
}
XMLArrayCursorInit(&cursor, &xml->xml_kids);
while ((kid = (JSXML *) XMLArrayCursorNext(&cursor)) != NULL) {
if (pretty && indentKids)
js_AppendChar(&sb, '\n');
kidstr = XMLToXMLString(cx, kid, &ancdecls, nextIndentLevel);
if (!kidstr)
break;
js_AppendJSString(&sb, kidstr);
}
XMLArrayCursorFinish(&cursor);
if (kid)
goto out;
if (pretty && indentKids) {
js_AppendChar(&sb, '\n');
js_RepeatChar(&sb, ' ', indentLevel);
}
js_AppendCString(&sb, "</");
/* Step 26. */
if (ns->prefix && !IS_EMPTY(ns->prefix)) {
js_AppendJSString(&sb, ns->prefix);
js_AppendChar(&sb, ':');
}
/* Step 27. */
js_AppendJSString(&sb, xml->name->localName);
js_AppendChar(&sb, '>');
}
if (!STRING_BUFFER_OK(&sb)) {
JS_ReportOutOfMemory(cx);
goto out;
}
str = js_NewString(cx, sb.base, STRING_BUFFER_OFFSET(&sb));
out:
js_LeaveLocalRootScopeWithResult(cx, STRING_TO_JSVAL(str));
if (!str && STRING_BUFFER_OK(&sb))
js_FinishStringBuffer(&sb);
XMLArrayFinish(cx, &decls);
if (ancdecls.capacity != 0)
XMLArrayFinish(cx, &ancdecls);
return str;
}
/* ECMA-357 10.2 */
static JSString *
ToXMLString(JSContext *cx, jsval v)
{
JSObject *obj;
JSString *str;
JSXML *xml;
if (JSVAL_IS_NULL(v) || JSVAL_IS_VOID(v)) {
JS_ReportErrorNumber(cx, js_GetErrorMessage, NULL,
JSMSG_BAD_XML_CONVERSION,
JSVAL_IS_NULL(v) ? js_null_str : js_undefined_str);
return NULL;
}
if (JSVAL_IS_BOOLEAN(v) || JSVAL_IS_NUMBER(v))
return js_ValueToString(cx, v);
if (JSVAL_IS_STRING(v))
return EscapeElementValue(cx, NULL, JSVAL_TO_STRING(v));
obj = JSVAL_TO_OBJECT(v);
if (!OBJECT_IS_XML(cx, obj)) {
if (!OBJ_DEFAULT_VALUE(cx, obj, JSTYPE_STRING, &v))
return NULL;
str = js_ValueToString(cx, v);
if (!str)
return NULL;
return EscapeElementValue(cx, NULL, str);
}
/* Handle non-element cases in this switch, returning from each case. */
xml = (JSXML *) JS_GetPrivate(cx, obj);
return XMLToXMLString(cx, xml, NULL, 0);
}
static JSXMLQName *
ToAttributeName(JSContext *cx, jsval v)
{
JSString *name, *uri, *prefix;
JSObject *obj;
JSClass *clasp;
JSXMLQName *qn;
JSTempValueRooter tvr;
if (JSVAL_IS_STRING(v)) {
name = JSVAL_TO_STRING(v);
uri = prefix = cx->runtime->emptyString;
} else {
if (JSVAL_IS_PRIMITIVE(v)) {
js_ReportValueError(cx, JSMSG_BAD_XML_ATTR_NAME,
JSDVG_IGNORE_STACK, v, NULL);
return NULL;
}
obj = JSVAL_TO_OBJECT(v);
clasp = OBJ_GET_CLASS(cx, obj);
if (clasp == &js_AttributeNameClass)
return (JSXMLQName *) JS_GetPrivate(cx, obj);
if (clasp == &js_QNameClass.base) {
qn = (JSXMLQName *) JS_GetPrivate(cx, obj);
uri = qn->uri;
prefix = qn->prefix;
name = qn->localName;
} else {
if (clasp == &js_AnyNameClass) {
name = ATOM_TO_STRING(cx->runtime->atomState.starAtom);
} else {
name = js_ValueToString(cx, v);
if (!name)
return NULL;
}
uri = prefix = cx->runtime->emptyString;
}
}
qn = js_NewXMLQName(cx, uri, prefix, name);
if (!qn)
return NULL;
JS_PUSH_TEMP_ROOT_GCTHING(cx, qn, &tvr);
obj = js_GetAttributeNameObject(cx, qn);
JS_POP_TEMP_ROOT(cx, &tvr);
if (!obj)
return NULL;
return qn;
}
static void
ReportBadXMLName(JSContext *cx, jsval id)
{
js_ReportValueError(cx, JSMSG_BAD_XML_NAME, JSDVG_IGNORE_STACK, id, NULL);
}
static JSBool
IsFunctionQName(JSContext *cx, JSXMLQName *qn, jsid *funidp)
{
JSAtom *atom;
atom = cx->runtime->atomState.lazy.functionNamespaceURIAtom;
if (qn->uri && atom &&
(qn->uri == ATOM_TO_STRING(atom) ||
js_EqualStrings(qn->uri, ATOM_TO_STRING(atom)))) {
return JS_ValueToId(cx, STRING_TO_JSVAL(qn->localName), funidp);
}
*funidp = 0;
return JS_TRUE;
}
JSBool
js_IsFunctionQName(JSContext *cx, JSObject *obj, jsid *funidp)
{
JSXMLQName *qn;
if (OBJ_GET_CLASS(cx, obj) == &js_QNameClass.base) {
qn = (JSXMLQName *) JS_GetPrivate(cx, obj);
return IsFunctionQName(cx, qn, funidp);
}
*funidp = 0;
return JS_TRUE;
}
static JSXMLQName *
ToXMLName(JSContext *cx, jsval v, jsid *funidp)
{
JSString *name;
JSObject *obj;
JSClass *clasp;
uint32 index;
JSXMLQName *qn;
if (JSVAL_IS_STRING(v)) {
name = JSVAL_TO_STRING(v);
} else {
if (JSVAL_IS_PRIMITIVE(v)) {
ReportBadXMLName(cx, v);
return NULL;
}
obj = JSVAL_TO_OBJECT(v);
clasp = OBJ_GET_CLASS(cx, obj);
if (clasp == &js_AttributeNameClass || clasp == &js_QNameClass.base)
goto out;
if (clasp == &js_AnyNameClass) {
name = ATOM_TO_STRING(cx->runtime->atomState.starAtom);
goto construct;
}
name = js_ValueToString(cx, v);
if (!name)
return NULL;
}
/*
* ECMA-357 10.6.1 step 1 seems to be incorrect. The spec says:
*
* 1. If ToString(ToNumber(P)) == ToString(P), throw a TypeError exception
*
* First, _P_ should be _s_, to refer to the given string.
*
* Second, why does ToXMLName applied to the string type throw TypeError
* only for numeric literals without any leading or trailing whitespace?
*
* If the idea is to reject uint32 property names, then the check needs to
* be stricter, to exclude hexadecimal and floating point literals.
*/
if (js_IdIsIndex(STRING_TO_JSVAL(name), &index))
goto bad;
if (*JSSTRING_CHARS(name) == '@') {
name = js_NewDependentString(cx, name, 1, JSSTRING_LENGTH(name) - 1);
if (!name)
return NULL;
*funidp = 0;
return ToAttributeName(cx, STRING_TO_JSVAL(name));
}
construct:
v = STRING_TO_JSVAL(name);
obj = js_ConstructObject(cx, &js_QNameClass.base, NULL, NULL, 1, &v);
if (!obj)
return NULL;
out:
qn = (JSXMLQName *) JS_GetPrivate(cx, obj);
if (!IsFunctionQName(cx, qn, funidp))
return NULL;
return qn;
bad:
JS_ReportErrorNumber(cx, js_GetErrorMessage, NULL,
JSMSG_BAD_XML_NAME,
js_ValueToPrintableString(cx, STRING_TO_JSVAL(name)));
return NULL;
}
/* ECMA-357 9.1.1.13 XML [[AddInScopeNamespace]]. */
static JSBool
AddInScopeNamespace(JSContext *cx, JSXML *xml, JSXMLNamespace *ns)
{
JSXMLNamespace *match, *ns2;
uint32 i, n, m;
if (xml->xml_class != JSXML_CLASS_ELEMENT)
return JS_TRUE;
/* NULL means *undefined* here -- see ECMA-357 9.1.1.13 step 2. */
if (!ns->prefix) {
match = NULL;
for (i = 0, n = xml->xml_namespaces.length; i < n; i++) {
ns2 = XMLARRAY_MEMBER(&xml->xml_namespaces, i, JSXMLNamespace);
if (ns2 && js_EqualStrings(ns2->uri, ns->uri)) {
match = ns2;
break;
}
}
if (!match && !XMLARRAY_ADD_MEMBER(cx, &xml->xml_namespaces, n, ns))
return JS_FALSE;
} else {
if (IS_EMPTY(ns->prefix) && IS_EMPTY(xml->name->uri))
return JS_TRUE;
match = NULL;
#ifdef __GNUC__ /* suppress bogus gcc warnings */
m = XML_NOT_FOUND;
#endif
for (i = 0, n = xml->xml_namespaces.length; i < n; i++) {
ns2 = XMLARRAY_MEMBER(&xml->xml_namespaces, i, JSXMLNamespace);
if (ns2 && ns2->prefix &&
js_EqualStrings(ns2->prefix, ns->prefix)) {
match = ns2;
m = i;
break;
}
}
if (match && !js_EqualStrings(match->uri, ns->uri)) {
ns2 = XMLARRAY_DELETE(cx, &xml->xml_namespaces, m, JS_TRUE,
JSXMLNamespace);
JS_ASSERT(ns2 == match);
match->prefix = NULL;
if (!AddInScopeNamespace(cx, xml, match))
return JS_FALSE;
}
if (!XMLARRAY_APPEND(cx, &xml->xml_namespaces, ns))
return JS_FALSE;
}
/* OPTION: enforce that descendants have superset namespaces. */
return JS_TRUE;
}
/* ECMA-357 9.2.1.6 XMLList [[Append]]. */
static JSBool
Append(JSContext *cx, JSXML *list, JSXML *xml)
{
uint32 i, j, k, n;
JSXML *kid;
JS_ASSERT(list->xml_class == JSXML_CLASS_LIST);
i = list->xml_kids.length;
n = 1;
if (xml->xml_class == JSXML_CLASS_LIST) {
list->xml_target = xml->xml_target;
list->xml_targetprop = xml->xml_targetprop;
n = JSXML_LENGTH(xml);
k = i + n;
if (!XMLArraySetCapacity(cx, &list->xml_kids, k))
return JS_FALSE;
for (j = 0; j < n; j++) {
kid = XMLARRAY_MEMBER(&xml->xml_kids, j, JSXML);
if (kid)
XMLARRAY_SET_MEMBER(&list->xml_kids, i + j, kid);
}
return JS_TRUE;
}
list->xml_target = xml->parent;
if (xml->xml_class == JSXML_CLASS_PROCESSING_INSTRUCTION)
list->xml_targetprop = NULL;
else
list->xml_targetprop = xml->name;
if (!XMLARRAY_ADD_MEMBER(cx, &list->xml_kids, i, xml))
return JS_FALSE;
return JS_TRUE;
}
/* ECMA-357 9.1.1.7 XML [[DeepCopy]] and 9.2.1.7 XMLList [[DeepCopy]]. */
static JSXML *
DeepCopyInLRS(JSContext *cx, JSXML *xml, uintN flags);
static JSXML *
DeepCopy(JSContext *cx, JSXML *xml, JSObject *obj, uintN flags)
{
JSXML *copy;
JSBool ok;
/* Our caller may not be protecting newborns with a local root scope. */
if (!js_EnterLocalRootScope(cx))
return NULL;
copy = DeepCopyInLRS(cx, xml, flags);
if (copy) {
if (obj) {
/* Caller provided the object for this copy, hook 'em up. */
ok = JS_SetPrivate(cx, obj, copy);
if (ok)
copy->object = obj;
} else {
ok = js_GetXMLObject(cx, copy) != NULL;
}
if (!ok)
copy = NULL;
}
js_LeaveLocalRootScopeWithResult(cx, (jsval) copy);
return copy;
}
/*
* (i) We must be in a local root scope (InLRS).
* (ii) parent must have a rooted object.
* (iii) from's owning object must be locked if not thread-local.
*/
static JSBool
DeepCopySetInLRS(JSContext *cx, JSXMLArray *from, JSXMLArray *to, JSXML *parent,
uintN flags)
{
uint32 j, n;
JSXMLArrayCursor cursor;
JSBool ok;
JSXML *kid, *kid2;
JSString *str;
JS_ASSERT(cx->localRootStack);
n = from->length;
if (!XMLArraySetCapacity(cx, to, n))
return JS_FALSE;
XMLArrayCursorInit(&cursor, from);
j = 0;
ok = JS_TRUE;
while ((kid = (JSXML *) XMLArrayCursorNext(&cursor)) != NULL) {
if ((flags & XSF_IGNORE_COMMENTS) &&
kid->xml_class == JSXML_CLASS_COMMENT) {
continue;
}
if ((flags & XSF_IGNORE_PROCESSING_INSTRUCTIONS) &&
kid->xml_class == JSXML_CLASS_PROCESSING_INSTRUCTION) {
continue;
}
if ((flags & XSF_IGNORE_WHITESPACE) &&
(kid->xml_flags & XMLF_WHITESPACE_TEXT)) {
continue;
}
kid2 = DeepCopyInLRS(cx, kid, flags);
if (!kid2) {
to->length = j;
ok = JS_FALSE;
break;
}
if ((flags & XSF_IGNORE_WHITESPACE) &&
n > 1 && kid2->xml_class == JSXML_CLASS_TEXT) {
str = ChompXMLWhitespace(cx, kid2->xml_value);
if (!str) {
to->length = j;
ok = JS_FALSE;
break;
}
kid2->xml_value = str;
}
XMLARRAY_SET_MEMBER(to, j, kid2);
++j;
if (parent->xml_class != JSXML_CLASS_LIST)
kid2->parent = parent;
}
XMLArrayCursorFinish(&cursor);
if (!ok)
return JS_FALSE;
if (j < n)
XMLArrayTrim(to);
return JS_TRUE;
}
static JSXML *
DeepCopyInLRS(JSContext *cx, JSXML *xml, uintN flags)
{
JSXML *copy;
JSXMLQName *qn;
JSBool ok;
uint32 i, n;
JSXMLNamespace *ns, *ns2;
/* Our caller must be protecting newborn objects. */
JS_ASSERT(cx->localRootStack);
copy = js_NewXML(cx, (JSXMLClass) xml->xml_class);
if (!copy)
return NULL;
qn = xml->name;
if (qn) {
qn = js_NewXMLQName(cx, qn->uri, qn->prefix, qn->localName);
if (!qn) {
ok = JS_FALSE;
goto out;
}
}
copy->name = qn;
copy->xml_flags = xml->xml_flags;
if (JSXML_HAS_VALUE(xml)) {
copy->xml_value = xml->xml_value;
ok = JS_TRUE;
} else {
ok = DeepCopySetInLRS(cx, &xml->xml_kids, &copy->xml_kids, copy, flags);
if (!ok)
goto out;
if (xml->xml_class == JSXML_CLASS_LIST) {
copy->xml_target = xml->xml_target;
copy->xml_targetprop = xml->xml_targetprop;
} else {
n = xml->xml_namespaces.length;
ok = XMLArraySetCapacity(cx, &copy->xml_namespaces, n);
if (!ok)
goto out;
for (i = 0; i < n; i++) {
ns = XMLARRAY_MEMBER(&xml->xml_namespaces, i, JSXMLNamespace);
if (!ns)
continue;
ns2 = js_NewXMLNamespace(cx, ns->prefix, ns->uri, ns->declared);
if (!ns2) {
copy->xml_namespaces.length = i;
ok = JS_FALSE;
goto out;
}
XMLARRAY_SET_MEMBER(&copy->xml_namespaces, i, ns2);
}
ok = DeepCopySetInLRS(cx, &xml->xml_attrs, &copy->xml_attrs, copy,
0);
if (!ok)
goto out;
}
}
out:
if (!ok)
return NULL;
return copy;
}
/* ECMA-357 9.1.1.4 XML [[DeleteByIndex]]. */
static void
DeleteByIndex(JSContext *cx, JSXML *xml, uint32 index)
{
JSXML *kid;
if (JSXML_HAS_KIDS(xml) && index < xml->xml_kids.length) {
kid = XMLARRAY_MEMBER(&xml->xml_kids, index, JSXML);
if (kid)
kid->parent = NULL;
XMLArrayDelete(cx, &xml->xml_kids, index, JS_TRUE);
}
}
typedef JSBool (*JSXMLNameMatcher)(JSXMLQName *nameqn, JSXML *xml);
static JSBool
MatchAttrName(JSXMLQName *nameqn, JSXML *attr)
{
JSXMLQName *attrqn = attr->name;
return (IS_STAR(nameqn->localName) ||
js_EqualStrings(attrqn->localName, nameqn->localName)) &&
(!nameqn->uri ||
js_EqualStrings(attrqn->uri, nameqn->uri));
}
static JSBool
MatchElemName(JSXMLQName *nameqn, JSXML *elem)
{
return (IS_STAR(nameqn->localName) ||
(elem->xml_class == JSXML_CLASS_ELEMENT &&
js_EqualStrings(elem->name->localName, nameqn->localName))) &&
(!nameqn->uri ||
(elem->xml_class == JSXML_CLASS_ELEMENT &&
js_EqualStrings(elem->name->uri, nameqn->uri)));
}
/* ECMA-357 9.1.1.8 XML [[Descendants]] and 9.2.1.8 XMLList [[Descendants]]. */
static JSBool
DescendantsHelper(JSContext *cx, JSXML *xml, JSXMLQName *nameqn, JSXML *list)
{
uint32 i, n;
JSXML *attr, *kid;
if (xml->xml_class == JSXML_CLASS_ELEMENT &&
OBJ_GET_CLASS(cx, nameqn->object) == &js_AttributeNameClass) {
for (i = 0, n = xml->xml_attrs.length; i < n; i++) {
attr = XMLARRAY_MEMBER(&xml->xml_attrs, i, JSXML);
if (attr && MatchAttrName(nameqn, attr)) {
if (!Append(cx, list, attr))
return JS_FALSE;
}
}
}
for (i = 0, n = JSXML_LENGTH(xml); i < n; i++) {
kid = XMLARRAY_MEMBER(&xml->xml_kids, i, JSXML);
if (!kid)
continue;
if (OBJ_GET_CLASS(cx, nameqn->object) != &js_AttributeNameClass &&
MatchElemName(nameqn, kid)) {
if (!Append(cx, list, kid))
return JS_FALSE;
}
if (!DescendantsHelper(cx, kid, nameqn, list))
return JS_FALSE;
}
return JS_TRUE;
}
static JSXML *
Descendants(JSContext *cx, JSXML *xml, jsval id)
{
jsid funid;
JSXMLQName *nameqn;
JSObject *listobj;
JSXML *list, *kid;
uint32 i, n;
JSBool ok;
nameqn = ToXMLName(cx, id, &funid);
if (!nameqn)
return NULL;
listobj = js_NewXMLObject(cx, JSXML_CLASS_LIST);
if (!listobj)
return NULL;
list = (JSXML *) JS_GetPrivate(cx, listobj);
if (funid)
return list;
/*
* Protect nameqn's object and strings from GC by linking list to it
* temporarily. The cx->newborn[GCX_OBJECT] GC root protects listobj,
* which protects list. Any other object allocations occuring beneath
* DescendantsHelper use local roots.
*/
list->name = nameqn;
if (!js_EnterLocalRootScope(cx))
return NULL;
if (xml->xml_class == JSXML_CLASS_LIST) {
ok = JS_TRUE;
for (i = 0, n = xml->xml_kids.length; i < n; i++) {
kid = XMLARRAY_MEMBER(&xml->xml_kids, i, JSXML);
if (kid && kid->xml_class == JSXML_CLASS_ELEMENT) {
ok = DescendantsHelper(cx, kid, nameqn, list);
if (!ok)
break;
}
}
} else {
ok = DescendantsHelper(cx, xml, nameqn, list);
}
js_LeaveLocalRootScopeWithResult(cx, (jsval) list);
if (!ok)
return NULL;
list->name = NULL;
return list;
}
static JSBool
xml_equality(JSContext *cx, JSObject *obj, jsval v, JSBool *bp);
/* Recursive (JSXML *) parameterized version of Equals. */
static JSBool
XMLEquals(JSContext *cx, JSXML *xml, JSXML *vxml, JSBool *bp)
{
JSXMLQName *qn, *vqn;
uint32 i, j, n;
JSXMLArrayCursor cursor, vcursor;
JSXML *kid, *vkid, *attr, *vattr;
JSBool ok;
JSObject *xobj, *vobj;
retry:
if (xml->xml_class != vxml->xml_class) {
if (xml->xml_class == JSXML_CLASS_LIST && xml->xml_kids.length == 1) {
xml = XMLARRAY_MEMBER(&xml->xml_kids, 0, JSXML);
if (xml)
goto retry;
}
if (vxml->xml_class == JSXML_CLASS_LIST && vxml->xml_kids.length == 1) {
vxml = XMLARRAY_MEMBER(&vxml->xml_kids, 0, JSXML);
if (vxml)
goto retry;
}
*bp = JS_FALSE;
return JS_TRUE;
}
qn = xml->name;
vqn = vxml->name;
if (qn) {
*bp = vqn &&
js_EqualStrings(qn->localName, vqn->localName) &&
js_EqualStrings(qn->uri, vqn->uri);
} else {
*bp = vqn == NULL;
}
if (!*bp)
return JS_TRUE;
if (JSXML_HAS_VALUE(xml)) {
*bp = js_EqualStrings(xml->xml_value, vxml->xml_value);
} else if (xml->xml_kids.length != vxml->xml_kids.length) {
*bp = JS_FALSE;
} else {
XMLArrayCursorInit(&cursor, &xml->xml_kids);
XMLArrayCursorInit(&vcursor, &vxml->xml_kids);
for (;;) {
kid = (JSXML *) XMLArrayCursorNext(&cursor);
vkid = (JSXML *) XMLArrayCursorNext(&vcursor);
if (!kid || !vkid) {
*bp = !kid && !vkid;
ok = JS_TRUE;
break;
}
xobj = js_GetXMLObject(cx, kid);
vobj = js_GetXMLObject(cx, vkid);
ok = xobj && vobj &&
xml_equality(cx, xobj, OBJECT_TO_JSVAL(vobj), bp);
if (!ok || !*bp)
break;
}
XMLArrayCursorFinish(&vcursor);
XMLArrayCursorFinish(&cursor);
if (!ok)
return JS_FALSE;
if (*bp && xml->xml_class == JSXML_CLASS_ELEMENT) {
n = xml->xml_attrs.length;
if (n != vxml->xml_attrs.length)
*bp = JS_FALSE;
for (i = 0; *bp && i < n; i++) {
attr = XMLARRAY_MEMBER(&xml->xml_attrs, i, JSXML);
if (!attr)
continue;
j = XMLARRAY_FIND_MEMBER(&vxml->xml_attrs, attr, attr_identity);
if (j == XML_NOT_FOUND) {
*bp = JS_FALSE;
break;
}
vattr = XMLARRAY_MEMBER(&vxml->xml_attrs, j, JSXML);
if (!vattr)
continue;
*bp = js_EqualStrings(attr->xml_value, vattr->xml_value);
}
}
}
return JS_TRUE;
}
/* ECMA-357 9.1.1.9 XML [[Equals]] and 9.2.1.9 XMLList [[Equals]]. */
static JSBool
Equals(JSContext *cx, JSXML *xml, jsval v, JSBool *bp)
{
JSObject *vobj;
JSXML *vxml;
if (JSVAL_IS_PRIMITIVE(v)) {
*bp = JS_FALSE;
if (xml->xml_class == JSXML_CLASS_LIST) {
if (xml->xml_kids.length == 1) {
vxml = XMLARRAY_MEMBER(&xml->xml_kids, 0, JSXML);
if (!vxml)
return JS_TRUE;
vobj = js_GetXMLObject(cx, vxml);
if (!vobj)
return JS_FALSE;
return js_XMLObjectOps.equality(cx, vobj, v, bp);
}
if (JSVAL_IS_VOID(v) && xml->xml_kids.length == 0)
*bp = JS_TRUE;
}
} else {
vobj = JSVAL_TO_OBJECT(v);
if (!OBJECT_IS_XML(cx, vobj)) {
*bp = JS_FALSE;
} else {
vxml = (JSXML *) JS_GetPrivate(cx, vobj);
if (!XMLEquals(cx, xml, vxml, bp))
return JS_FALSE;
}
}
return JS_TRUE;
}
static JSBool
CheckCycle(JSContext *cx, JSXML *xml, JSXML *kid)
{
JS_ASSERT(kid->xml_class != JSXML_CLASS_LIST);
do {
if (xml == kid) {
JS_ReportErrorNumber(cx, js_GetErrorMessage, NULL,
JSMSG_CYCLIC_VALUE, js_XML_str);
return JS_FALSE;
}
} while ((xml = xml->parent) != NULL);
return JS_TRUE;
}
/* ECMA-357 9.1.1.11 XML [[Insert]]. */
static JSBool
Insert(JSContext *cx, JSXML *xml, uint32 i, jsval v)
{
uint32 j, n;
JSXML *vxml, *kid;
JSObject *vobj;
JSString *str;
if (!JSXML_HAS_KIDS(xml))
return JS_TRUE;
n = 1;
vxml = NULL;
if (!JSVAL_IS_PRIMITIVE(v)) {
vobj = JSVAL_TO_OBJECT(v);
if (OBJECT_IS_XML(cx, vobj)) {
vxml = (JSXML *) JS_GetPrivate(cx, vobj);
if (vxml->xml_class == JSXML_CLASS_LIST) {
n = vxml->xml_kids.length;
if (n == 0)
return JS_TRUE;
for (j = 0; j < n; j++) {
kid = XMLARRAY_MEMBER(&vxml->xml_kids, j, JSXML);
if (!kid)
continue;
if (!CheckCycle(cx, xml, kid))
return JS_FALSE;
}
} else if (vxml->xml_class == JSXML_CLASS_ELEMENT) {
/* OPTION: enforce that descendants have superset namespaces. */
if (!CheckCycle(cx, xml, vxml))
return JS_FALSE;
}
}
}
if (!vxml) {
str = js_ValueToString(cx, v);
if (!str)
return JS_FALSE;
vxml = js_NewXML(cx, JSXML_CLASS_TEXT);
if (!vxml)
return JS_FALSE;
vxml->xml_value = str;
}
if (i > xml->xml_kids.length)
i = xml->xml_kids.length;
if (!XMLArrayInsert(cx, &xml->xml_kids, i, n))
return JS_FALSE;
if (vxml->xml_class == JSXML_CLASS_LIST) {
for (j = 0; j < n; j++) {
kid = XMLARRAY_MEMBER(&vxml->xml_kids, j, JSXML);
if (!kid)
continue;
kid->parent = xml;
XMLARRAY_SET_MEMBER(&xml->xml_kids, i + j, kid);
/* OPTION: enforce that descendants have superset namespaces. */
}
} else {
vxml->parent = xml;
XMLARRAY_SET_MEMBER(&xml->xml_kids, i, vxml);
}
return JS_TRUE;
}
static JSBool
IndexToIdVal(JSContext *cx, uint32 index, jsval *idvp)
{
JSString *str;
if (index <= JSVAL_INT_MAX) {
*idvp = INT_TO_JSVAL(index);
} else {
str = js_NumberToString(cx, (jsdouble) index);
if (!str)
return JS_FALSE;
*idvp = STRING_TO_JSVAL(str);
}
return JS_TRUE;
}
/* ECMA-357 9.1.1.12 XML [[Replace]]. */
static JSBool
Replace(JSContext *cx, JSXML *xml, uint32 i, jsval v)
{
uint32 n;
JSXML *vxml, *kid;
JSObject *vobj;
JSString *str;
if (!JSXML_HAS_KIDS(xml))
return JS_TRUE;
/*
* 9.1.1.12
* [[Replace]] handles _i >= x.[[Length]]_ by incrementing _x.[[Length]_.
* It should therefore constrain callers to pass in _i <= x.[[Length]]_.
*/
n = xml->xml_kids.length;
if (i > n)
i = n;
vxml = NULL;
if (!JSVAL_IS_PRIMITIVE(v)) {
vobj = JSVAL_TO_OBJECT(v);
if (OBJECT_IS_XML(cx, vobj))
vxml = (JSXML *) JS_GetPrivate(cx, vobj);
}
switch (vxml ? vxml->xml_class : JSXML_CLASS_LIMIT) {
case JSXML_CLASS_ELEMENT:
/* OPTION: enforce that descendants have superset namespaces. */
if (!CheckCycle(cx, xml, vxml))
return JS_FALSE;
case JSXML_CLASS_COMMENT:
case JSXML_CLASS_PROCESSING_INSTRUCTION:
case JSXML_CLASS_TEXT:
goto do_replace;
case JSXML_CLASS_LIST:
if (i < n)
DeleteByIndex(cx, xml, i);
if (!Insert(cx, xml, i, v))
return JS_FALSE;
break;
default:
str = js_ValueToString(cx, v);
if (!str)
return JS_FALSE;
vxml = js_NewXML(cx, JSXML_CLASS_TEXT);
if (!vxml)
return JS_FALSE;
vxml->xml_value = str;
do_replace:
vxml->parent = xml;
if (i < n) {
kid = XMLARRAY_MEMBER(&xml->xml_kids, i, JSXML);
if (kid)
kid->parent = NULL;
}
if (!XMLARRAY_ADD_MEMBER(cx, &xml->xml_kids, i, vxml))
return JS_FALSE;
break;
}
return JS_TRUE;
}
/* ECMA-357 9.1.1.3 XML [[Delete]], 9.2.1.3 XML [[Delete]] qname cases. */
static void
DeleteNamedProperty(JSContext *cx, JSXML *xml, JSXMLQName *nameqn,
JSBool attributes)
{
JSXMLArray *array;
uint32 index, deleteCount;
JSXML *kid;
JSXMLNameMatcher matcher;
if (xml->xml_class == JSXML_CLASS_LIST) {
array = &xml->xml_kids;
for (index = 0; index < array->length; index++) {
kid = XMLARRAY_MEMBER(array, index, JSXML);
if (kid && kid->xml_class == JSXML_CLASS_ELEMENT)
DeleteNamedProperty(cx, kid, nameqn, attributes);
}
} else if (xml->xml_class == JSXML_CLASS_ELEMENT) {
if (attributes) {
array = &xml->xml_attrs;
matcher = MatchAttrName;
} else {
array = &xml->xml_kids;
matcher = MatchElemName;
}
deleteCount = 0;
for (index = 0; index < array->length; index++) {
kid = XMLARRAY_MEMBER(array, index, JSXML);
if (kid && matcher(nameqn, kid)) {
kid->parent = NULL;
XMLArrayDelete(cx, array, index, JS_FALSE);
++deleteCount;
} else if (deleteCount != 0) {
XMLARRAY_SET_MEMBER(array,
index - deleteCount,
array->vector[index]);
}
}
array->length -= deleteCount;
}
}
/* ECMA-357 9.2.1.3 index case. */
static void
DeleteListElement(JSContext *cx, JSXML *xml, uint32 index)
{
JSXML *kid, *parent;
uint32 kidIndex;
JS_ASSERT(xml->xml_class == JSXML_CLASS_LIST);
if (index < xml->xml_kids.length) {
kid = XMLARRAY_MEMBER(&xml->xml_kids, index, JSXML);
if (kid) {
parent = kid->parent;
if (parent) {
JS_ASSERT(parent != xml);
JS_ASSERT(JSXML_HAS_KIDS(parent));
if (kid->xml_class == JSXML_CLASS_ATTRIBUTE) {
DeleteNamedProperty(cx, parent, kid->name, JS_TRUE);
} else {
kidIndex = XMLARRAY_FIND_MEMBER(&parent->xml_kids, kid,
NULL);
JS_ASSERT(kidIndex != XML_NOT_FOUND);
DeleteByIndex(cx, parent, kidIndex);
}
}
XMLArrayDelete(cx, &xml->xml_kids, index, JS_TRUE);
}
}
}
static JSBool
SyncInScopeNamespaces(JSContext *cx, JSXML *xml)
{
JSXMLArray *nsarray;
uint32 i, n;
JSXMLNamespace *ns;
nsarray = &xml->xml_namespaces;
while ((xml = xml->parent) != NULL) {
for (i = 0, n = xml->xml_namespaces.length; i < n; i++) {
ns = XMLARRAY_MEMBER(&xml->xml_namespaces, i, JSXMLNamespace);
if (ns && !XMLARRAY_HAS_MEMBER(nsarray, ns, namespace_identity)) {
if (!XMLARRAY_APPEND(cx, nsarray, ns))
return JS_FALSE;
}
}
}
return JS_TRUE;
}
static JSBool
GetNamedProperty(JSContext *cx, JSXML *xml, JSXMLQName* nameqn, JSXML *list)
{
JSXMLArray *array;
JSXMLNameMatcher matcher;
JSXMLArrayCursor cursor;
JSXML *kid;
JSBool attrs;
if (xml->xml_class == JSXML_CLASS_LIST) {
XMLArrayCursorInit(&cursor, &xml->xml_kids);
while ((kid = (JSXML *) XMLArrayCursorNext(&cursor)) != NULL) {
if (kid->xml_class == JSXML_CLASS_ELEMENT &&
!GetNamedProperty(cx, kid, nameqn, list)) {
break;
}
}
XMLArrayCursorFinish(&cursor);
if (kid)
return JS_FALSE;
} else if (xml->xml_class == JSXML_CLASS_ELEMENT) {
attrs = (OBJ_GET_CLASS(cx, nameqn->object) == &js_AttributeNameClass);
if (attrs) {
array = &xml->xml_attrs;
matcher = MatchAttrName;
} else {
array = &xml->xml_kids;
matcher = MatchElemName;
}
XMLArrayCursorInit(&cursor, array);
while ((kid = (JSXML *) XMLArrayCursorNext(&cursor)) != NULL) {
if (matcher(nameqn, kid)) {
if (!attrs &&
kid->xml_class == JSXML_CLASS_ELEMENT &&
!SyncInScopeNamespaces(cx, kid)) {
break;
}
if (!Append(cx, list, kid))
break;
}
}
XMLArrayCursorFinish(&cursor);
if (kid)
return JS_FALSE;
}
return JS_TRUE;
}
/* ECMA-357 9.1.1.1 XML [[Get]] and 9.2.1.1 XMLList [[Get]]. */
static JSBool
GetProperty(JSContext *cx, JSObject *obj, jsval id, jsval *vp)
{
JSXML *xml, *list, *kid;
uint32 index;
JSObject *kidobj, *listobj;
JSXMLQName *nameqn;
jsid funid;
jsval roots[2];
JSTempValueRooter tvr;
xml = (JSXML *) JS_GetInstancePrivate(cx, obj, &js_XMLClass, NULL);
if (!xml)
return JS_TRUE;
if (js_IdIsIndex(id, &index)) {
if (xml->xml_class != JSXML_CLASS_LIST) {
*vp = (index == 0) ? OBJECT_TO_JSVAL(obj) : JSVAL_VOID;
} else {
/*
* ECMA-357 9.2.1.1 starts here.
*
* Erratum: 9.2 is not completely clear that indexed properties
* correspond to kids, but that's what it seems to say, and it's
* what any sane user would want.
*/
if (index < xml->xml_kids.length) {
kid = XMLARRAY_MEMBER(&xml->xml_kids, index, JSXML);
if (!kid) {
*vp = JSVAL_VOID;
return JS_TRUE;
}
kidobj = js_GetXMLObject(cx, kid);
if (!kidobj)
return JS_FALSE;
*vp = OBJECT_TO_JSVAL(kidobj);
} else {
*vp = JSVAL_VOID;
}
}
return JS_TRUE;
}
/*
* ECMA-357 9.2.1.1/9.1.1.1 qname case.
*/
nameqn = ToXMLName(cx, id, &funid);
if (!nameqn)
return JS_FALSE;
if (funid)
return js_GetXMLFunction(cx, obj, funid, vp);
roots[0] = OBJECT_TO_JSVAL(nameqn->object);
JS_PUSH_TEMP_ROOT(cx, 1, roots, &tvr);
listobj = js_NewXMLObject(cx, JSXML_CLASS_LIST);
if (listobj) {
roots[1] = OBJECT_TO_JSVAL(listobj);
tvr.count++;
list = (JSXML *) JS_GetPrivate(cx, listobj);
if (!GetNamedProperty(cx, xml, nameqn, list)) {
listobj = NULL;
} else {
/*
* Erratum: ECMA-357 9.1.1.1 misses that [[Append]] sets the
* given list's [[TargetProperty]] to the property that is being
* appended. This means that any use of the internal [[Get]]
* property returns a list which, when used by e.g. [[Insert]]
* duplicates the last element matched by id. See bug 336921.
*/
list->xml_target = xml;
list->xml_targetprop = nameqn;
*vp = OBJECT_TO_JSVAL(listobj);
}
}
JS_POP_TEMP_ROOT(cx, &tvr);
return listobj != NULL;
}
static JSXML *
CopyOnWrite(JSContext *cx, JSXML *xml, JSObject *obj)
{
JS_ASSERT(xml->object != obj);
xml = DeepCopy(cx, xml, obj, 0);
if (!xml)
return NULL;
JS_ASSERT(xml->object == obj);
return xml;
}
#define CHECK_COPY_ON_WRITE(cx,xml,obj) \
(xml->object == obj ? xml : CopyOnWrite(cx, xml, obj))
static JSString *
KidToString(JSContext *cx, JSXML *xml, uint32 index)
{
JSXML *kid;
JSObject *kidobj;
kid = XMLARRAY_MEMBER(&xml->xml_kids, index, JSXML);
if (!kid)
return cx->runtime->emptyString;
kidobj = js_GetXMLObject(cx, kid);
if (!kidobj)
return NULL;
return js_ValueToString(cx, OBJECT_TO_JSVAL(kidobj));
}
/* Forward declared -- its implementation uses other statics that call it. */
static JSBool
ResolveValue(JSContext *cx, JSXML *list, JSXML **result);
/* ECMA-357 9.1.1.2 XML [[Put]] and 9.2.1.2 XMLList [[Put]]. */
static JSBool
PutProperty(JSContext *cx, JSObject *obj, jsval id, jsval *vp)
{
JSBool ok, primitiveAssign;
enum { OBJ_ROOT, ID_ROOT, VAL_ROOT };
jsval roots[3];
JSTempValueRooter tvr;
JSXML *xml, *vxml, *rxml, *kid, *attr, *parent, *copy, *kid2, *match;
JSObject *vobj, *nameobj, *attrobj, *parentobj, *kidobj, *copyobj;
JSXMLQName *targetprop, *nameqn, *attrqn;
uint32 index, i, j, k, n, q, matchIndex;
jsval attrval, nsval;
jsid funid;
JSString *left, *right, *space;
JSXMLNamespace *ns;
xml = (JSXML *) JS_GetInstancePrivate(cx, obj, &js_XMLClass, NULL);
if (!xml)
return JS_TRUE;
xml = CHECK_COPY_ON_WRITE(cx, xml, obj);
if (!xml)
return JS_FALSE;
/* Precompute vxml for 9.2.1.2 2(c)(vii)(2-3) and 2(d) and 9.1.1.2 1. */
vxml = NULL;
if (!JSVAL_IS_PRIMITIVE(*vp)) {
vobj = JSVAL_TO_OBJECT(*vp);
if (OBJECT_IS_XML(cx, vobj))
vxml = (JSXML *) JS_GetPrivate(cx, vobj);
}
/* Control flow after here must exit via label out. */
ok = js_EnterLocalRootScope(cx);
if (!ok)
return JS_FALSE;
roots[OBJ_ROOT] = OBJECT_TO_JSVAL(obj);
roots[ID_ROOT] = id;
roots[VAL_ROOT] = *vp;
JS_PUSH_TEMP_ROOT(cx, 3, roots, &tvr);
if (js_IdIsIndex(id, &index)) {
if (xml->xml_class != JSXML_CLASS_LIST) {
/* See NOTE in spec: this variation is reserved for future use. */
ReportBadXMLName(cx, id);
goto bad;
}
/*
* Step 1 of ECMA-357 9.2.1.2 index case sets i to the property index.
*/
i = index;
/* 2(a-b). */
if (xml->xml_target) {
ok = ResolveValue(cx, xml->xml_target, &rxml);
if (!ok)
goto out;
if (!rxml)
goto out;
JS_ASSERT(rxml->object);
} else {
rxml = NULL;
}
/* 2(c). */
if (index >= xml->xml_kids.length) {
/* 2(c)(i). */
if (rxml) {
if (rxml->xml_class == JSXML_CLASS_LIST) {
if (rxml->xml_kids.length != 1)
goto out;
rxml = XMLARRAY_MEMBER(&rxml->xml_kids, 0, JSXML);
if (!rxml)
goto out;
ok = js_GetXMLObject(cx, rxml) != NULL;
if (!ok)
goto out;
}
/*
* Erratum: ECMA-357 9.2.1.2 step 2(c)(ii) sets
* _y.[[Parent]] = r_ where _r_ is the result of
* [[ResolveValue]] called on _x.[[TargetObject]] in
* 2(a)(i). This can result in text parenting text:
*
* var MYXML = new XML();
* MYXML.appendChild(new XML("<TEAM>Giants</TEAM>"));
*
* (testcase from Werner Sharp <wsharp@macromedia.com>).
*
* To match insertChildAfter, insertChildBefore,
* prependChild, and setChildren, we should silently
* do nothing in this case.
*/
if (!JSXML_HAS_KIDS(rxml))
goto out;
}
/* 2(c)(ii) is distributed below as several js_NewXML calls. */
targetprop = xml->xml_targetprop;
if (!targetprop || IS_STAR(targetprop->localName)) {
/* 2(c)(iv)(1-2), out of order w.r.t. 2(c)(iii). */
kid = js_NewXML(cx, JSXML_CLASS_TEXT);
if (!kid)
goto bad;
} else {
nameobj = js_GetXMLQNameObject(cx, targetprop);
if (!nameobj)
goto bad;
if (OBJ_GET_CLASS(cx, nameobj) == &js_AttributeNameClass) {
/*
* 2(c)(iii)(1-3).
* Note that rxml can't be null here, because target
* and targetprop are non-null.
*/
ok = GetProperty(cx, rxml->object, id, &attrval);
if (!ok)
goto out;
if (JSVAL_IS_PRIMITIVE(attrval)) /* no such attribute */
goto out;
attrobj = JSVAL_TO_OBJECT(attrval);
attr = (JSXML *) JS_GetPrivate(cx, attrobj);
if (JSXML_LENGTH(attr) != 0)
goto out;
kid = js_NewXML(cx, JSXML_CLASS_ATTRIBUTE);
} else {
/* 2(c)(v). */
kid = js_NewXML(cx, JSXML_CLASS_ELEMENT);
}
if (!kid)
goto bad;
/* An important bit of 2(c)(ii). */
kid->name = targetprop;
}
/* Final important bit of 2(c)(ii). */
kid->parent = rxml;
/* 2(c)(vi-vii). */
i = xml->xml_kids.length;
if (kid->xml_class != JSXML_CLASS_ATTRIBUTE) {
/*
* 2(c)(vii)(1) tests whether _y.[[Parent]]_ is not null.
* y.[[Parent]] is here called kid->parent, which we know
* from 2(c)(ii) is _r_, here called rxml. So let's just
* test that! Erratum, the spec should be simpler here.
*/
if (rxml) {
JS_ASSERT(JSXML_HAS_KIDS(rxml));
n = rxml->xml_kids.length;
j = n - 1;
if (n != 0 && i != 0) {
for (n = j, j = 0; j < n; j++) {
if (rxml->xml_kids.vector[j] ==
xml->xml_kids.vector[i-1]) {
break;
}
}
}
kidobj = js_GetXMLObject(cx, kid);
if (!kidobj)
goto bad;
ok = Insert(cx, rxml, j + 1, OBJECT_TO_JSVAL(kidobj));
if (!ok)
goto out;
}
/*
* 2(c)(vii)(2-3).
* Erratum: [[PropertyName]] in 2(c)(vii)(3) must be a
* typo for [[TargetProperty]].
*/
if (vxml) {
kid->name = (vxml->xml_class == JSXML_CLASS_LIST)
? vxml->xml_targetprop
: vxml->name;
}
}
/* 2(c)(viii). */
ok = Append(cx, xml, kid);
if (!ok)
goto out;
}
/* 2(d). */
if (!vxml ||
vxml->xml_class == JSXML_CLASS_TEXT ||
vxml->xml_class == JSXML_CLASS_ATTRIBUTE) {
ok = JS_ConvertValue(cx, *vp, JSTYPE_STRING, vp);
if (!ok)
goto out;
roots[VAL_ROOT] = *vp;
}
/* 2(e). */
kid = XMLARRAY_MEMBER(&xml->xml_kids, i, JSXML);
if (!kid)
goto out;
parent = kid->parent;
if (kid->xml_class == JSXML_CLASS_ATTRIBUTE) {
nameobj = js_GetAttributeNameObject(cx, kid->name);
if (!nameobj)
goto bad;
id = OBJECT_TO_JSVAL(nameobj);
if (parent) {
/* 2(e)(i). */
parentobj = js_GetXMLObject(cx, parent);
if (!parentobj)
goto bad;
ok = PutProperty(cx, parentobj, id, vp);
if (!ok)
goto out;
/* 2(e)(ii). */
ok = GetProperty(cx, parentobj, id, vp);
if (!ok)
goto out;
attr = (JSXML *) JS_GetPrivate(cx, JSVAL_TO_OBJECT(*vp));
/* 2(e)(iii). */
xml->xml_kids.vector[i] = attr->xml_kids.vector[0];
}
}
/* 2(f). */
else if (vxml && vxml->xml_class == JSXML_CLASS_LIST) {
/*
* 2(f)(i)
*
* Erratum: the spec says to create a shallow copy _c_ of _V_, but
* if we do that we never change the parent of each child in the
* list. Since [[Put]] when called on an XML object deeply copies
* the provided list _V_, we also do so here. Perhaps the shallow
* copy was a misguided optimization?
*/
copy = DeepCopyInLRS(cx, vxml, 0);
if (!copy)
goto bad;
copyobj = js_GetXMLObject(cx, copy);
if (!copyobj)
goto bad;
JS_ASSERT(parent != xml);
if (parent) {
q = XMLARRAY_FIND_MEMBER(&parent->xml_kids, kid, NULL);
JS_ASSERT(q != XML_NOT_FOUND);
ok = Replace(cx, parent, q, OBJECT_TO_JSVAL(copyobj));
if (!ok)
goto out;
#ifdef DEBUG
/* Erratum: this loop in the spec is useless. */
for (j = 0, n = copy->xml_kids.length; j < n; j++) {
kid2 = XMLARRAY_MEMBER(&parent->xml_kids, q + j, JSXML);
JS_ASSERT(XMLARRAY_MEMBER(&copy->xml_kids, j, JSXML)
== kid2);
}
#endif
}
/*
* 2(f)(iv-vi).
* Erratum: notice the unhandled zero-length V basis case and
* the off-by-one errors for the n != 0 cases in the spec.
*/
n = copy->xml_kids.length;
if (n == 0) {
XMLArrayDelete(cx, &xml->xml_kids, i, JS_TRUE);
} else {
ok = XMLArrayInsert(cx, &xml->xml_kids, i + 1, n - 1);
if (!ok)
goto out;
for (j = 0; j < n; j++)
xml->xml_kids.vector[i + j] = copy->xml_kids.vector[j];
}
}
/* 2(g). */
else if (vxml || JSXML_HAS_VALUE(kid)) {
if (parent) {
q = XMLARRAY_FIND_MEMBER(&parent->xml_kids, kid, NULL);
JS_ASSERT(q != XML_NOT_FOUND);
ok = Replace(cx, parent, q, *vp);
if (!ok)
goto out;
vxml = XMLARRAY_MEMBER(&parent->xml_kids, q, JSXML);
if (!vxml)
goto out;
roots[VAL_ROOT] = *vp = OBJECT_TO_JSVAL(vxml->object);
}
/*
* 2(g)(iii).
* Erratum: _V_ may not be of type XML, but all index-named
* properties _x[i]_ in an XMLList _x_ must be of type XML,
* according to 9.2.1.1 Overview and other places in the spec.
*
* Thanks to 2(d), we know _V_ (*vp here) is either a string
* or an XML/XMLList object. If *vp is a string, call ToXML
* on it to satisfy the constraint.
*/
if (!vxml) {
JS_ASSERT(JSVAL_IS_STRING(*vp));
vobj = ToXML(cx, *vp);
if (!vobj)
goto bad;
roots[VAL_ROOT] = *vp = OBJECT_TO_JSVAL(vobj);
vxml = (JSXML *) JS_GetPrivate(cx, vobj);
}
XMLARRAY_SET_MEMBER(&xml->xml_kids, i, vxml);
}
/* 2(h). */
else {
kidobj = js_GetXMLObject(cx, kid);
if (!kidobj)
goto bad;
id = ATOM_KEY(cx->runtime->atomState.starAtom);
ok = PutProperty(cx, kidobj, id, vp);
if (!ok)
goto out;
}
} else {
/*
* ECMA-357 9.2.1.2/9.1.1.2 qname case.
*/
nameqn = ToXMLName(cx, id, &funid);
if (!nameqn)
goto bad;
if (funid) {
ok = js_SetProperty(cx, obj, funid, vp);
goto out;
}
nameobj = nameqn->object;
roots[ID_ROOT] = OBJECT_TO_JSVAL(nameobj);
if (xml->xml_class == JSXML_CLASS_LIST) {
/*
* Step 3 of 9.2.1.2.
* Erratum: if x.[[Length]] > 1 or [[ResolveValue]] returns null
* or an r with r.[[Length]] != 1, throw TypeError.
*/
n = JSXML_LENGTH(xml);
if (n > 1)
goto type_error;
if (n == 0) {
ok = ResolveValue(cx, xml, &rxml);
if (!ok)
goto out;
if (!rxml || JSXML_LENGTH(rxml) != 1)
goto type_error;
ok = Append(cx, xml, rxml);
if (!ok)
goto out;
}
JS_ASSERT(JSXML_LENGTH(xml) == 1);
xml = XMLARRAY_MEMBER(&xml->xml_kids, 0, JSXML);
if (!xml)
goto out;
JS_ASSERT(xml->xml_class != JSXML_CLASS_LIST);
obj = js_GetXMLObject(cx, xml);
if (!obj)
goto bad;
roots[OBJ_ROOT] = OBJECT_TO_JSVAL(obj);
/* FALL THROUGH to non-list case */
}
/*
* ECMA-357 9.1.1.2.
* Erratum: move steps 3 and 4 to before 1 and 2, to avoid wasted
* effort in ToString or [[DeepCopy]].
*/
if (JSXML_HAS_VALUE(xml))
goto out;
if (!vxml ||
vxml->xml_class == JSXML_CLASS_TEXT ||
vxml->xml_class == JSXML_CLASS_ATTRIBUTE) {
ok = JS_ConvertValue(cx, *vp, JSTYPE_STRING, vp);
if (!ok)
goto out;
} else {
rxml = DeepCopyInLRS(cx, vxml, 0);
if (!rxml || !js_GetXMLObject(cx, rxml))
goto bad;
vxml = rxml;
*vp = OBJECT_TO_JSVAL(vxml->object);
}
roots[VAL_ROOT] = *vp;
/*
* 6.
* Erratum: why is this done here, so early? use is way later....
*/
ok = js_GetDefaultXMLNamespace(cx, &nsval);
if (!ok)
goto out;
if (OBJ_GET_CLASS(cx, nameobj) == &js_AttributeNameClass) {
/* 7(a). */
if (!js_IsXMLName(cx, OBJECT_TO_JSVAL(nameobj)))
goto out;
/* 7(b-c). */
if (vxml && vxml->xml_class == JSXML_CLASS_LIST) {
n = vxml->xml_kids.length;
if (n == 0) {
*vp = STRING_TO_JSVAL(cx->runtime->emptyString);
} else {
left = KidToString(cx, vxml, 0);
if (!left)
goto bad;
space = ATOM_TO_STRING(cx->runtime->atomState.spaceAtom);
for (i = 1; i < n; i++) {
left = js_ConcatStrings(cx, left, space);
if (!left)
goto bad;
right = KidToString(cx, vxml, i);
if (!right)
goto bad;
left = js_ConcatStrings(cx, left, right);
if (!left)
goto bad;
}
roots[VAL_ROOT] = *vp = STRING_TO_JSVAL(left);
}
} else {
ok = JS_ConvertValue(cx, *vp, JSTYPE_STRING, vp);
if (!ok)
goto out;
roots[VAL_ROOT] = *vp;
}
/* 7(d-e). */
match = NULL;
for (i = 0, n = xml->xml_attrs.length; i < n; i++) {
attr = XMLARRAY_MEMBER(&xml->xml_attrs, i, JSXML);
if (!attr)
continue;
attrqn = attr->name;
if (js_EqualStrings(attrqn->localName, nameqn->localName) &&
(!nameqn->uri ||
js_EqualStrings(attrqn->uri, nameqn->uri))) {
if (!match) {
match = attr;
} else {
DeleteNamedProperty(cx, xml, attrqn, JS_TRUE);
--i;
}
}
}
/* 7(f). */
attr = match;
if (!attr) {
/* 7(f)(i-ii). */
if (!nameqn->uri) {
left = right = cx->runtime->emptyString;
} else {
left = nameqn->uri;
right = nameqn->prefix;
}
nameqn = js_NewXMLQName(cx, left, right, nameqn->localName);
if (!nameqn)
goto bad;
/* 7(f)(iii). */
attr = js_NewXML(cx, JSXML_CLASS_ATTRIBUTE);
if (!attr)
goto bad;
attr->parent = xml;
attr->name = nameqn;
/* 7(f)(iv). */
ok = XMLARRAY_ADD_MEMBER(cx, &xml->xml_attrs, n, attr);
if (!ok)
goto out;
/* 7(f)(v-vi). */
ns = GetNamespace(cx, nameqn, NULL);
if (!ns)
goto bad;
ok = AddInScopeNamespace(cx, xml, ns);
if (!ok)
goto out;
}
/* 7(g). */
attr->xml_value = JSVAL_TO_STRING(*vp);
goto out;
}
/* 8-9. */
if (!js_IsXMLName(cx, OBJECT_TO_JSVAL(nameobj)) &&
!IS_STAR(nameqn->localName)) {
goto out;
}
/* 10-11. */
id = JSVAL_VOID;
primitiveAssign = !vxml && !IS_STAR(nameqn->localName);
/* 12. */
k = n = xml->xml_kids.length;
matchIndex = XML_NOT_FOUND;
kid2 = NULL;
while (k != 0) {
--k;
kid = XMLARRAY_MEMBER(&xml->xml_kids, k, JSXML);
if (kid && MatchElemName(nameqn, kid)) {
if (matchIndex != XML_NOT_FOUND)
DeleteByIndex(cx, xml, matchIndex);
matchIndex = k;
kid2 = kid;
}
}
/*
* Erratum: ECMA-357 specified child insertion inconsistently:
* insertChildBefore and insertChildAfter insert an arbitrary XML
* instance, and therefore can create cycles, but appendChild as
* specified by the "Overview" of 13.4.4.3 calls [[DeepCopy]] on
* its argument. But the "Semantics" in 13.4.4.3 do not include
* any [[DeepCopy]] call.
*
* Fixing this (https://bugzilla.mozilla.org/show_bug.cgi?id=312692)
* required adding cycle detection, and allowing duplicate kids to
* be created (see comment 6 in the bug). Allowing duplicate kid
* references means the loop above will delete all but the lowest
* indexed reference, and each [[DeleteByIndex]] nulls the kid's
* parent. Thus the need to restore parent here. This is covered
* by https://bugzilla.mozilla.org/show_bug.cgi?id=327564.
*/
if (kid2) {
JS_ASSERT(kid2->parent == xml || !kid2->parent);
if (!kid2->parent)
kid2->parent = xml;
}
/* 13. */
if (matchIndex == XML_NOT_FOUND) {
/* 13(a). */
matchIndex = n;
/* 13(b). */
if (primitiveAssign) {
if (!nameqn->uri) {
ns = (JSXMLNamespace *)
JS_GetPrivate(cx, JSVAL_TO_OBJECT(nsval));
left = ns->uri;
right = ns->prefix;
} else {
left = nameqn->uri;
right = nameqn->prefix;
}
nameqn = js_NewXMLQName(cx, left, right, nameqn->localName);
if (!nameqn)
goto bad;
/* 13(b)(iii). */
vobj = js_NewXMLObject(cx, JSXML_CLASS_ELEMENT);
if (!vobj)
goto bad;
vxml = (JSXML *) JS_GetPrivate(cx, vobj);
vxml->parent = xml;
vxml->name = nameqn;
/* 13(b)(iv-vi). */
ns = GetNamespace(cx, nameqn, NULL);
if (!ns)
goto bad;
ok = Replace(cx, xml, matchIndex, OBJECT_TO_JSVAL(vobj));
if (!ok)
goto out;
ok = AddInScopeNamespace(cx, vxml, ns);
if (!ok)
goto out;
}
}
/* 14. */
if (primitiveAssign) {
JSXMLArrayCursor cursor;
XMLArrayCursorInit(&cursor, &xml->xml_kids);
cursor.index = matchIndex;
kid = (JSXML *) XMLArrayCursorItem(&cursor);
if (JSXML_HAS_KIDS(kid)) {
XMLArrayFinish(cx, &kid->xml_kids);
ok = XMLArrayInit(cx, &kid->xml_kids, 1);
}
/* 14(b-c). */
/* XXXbe Erratum? redundant w.r.t. 7(b-c) else clause above */
if (ok) {
ok = JS_ConvertValue(cx, *vp, JSTYPE_STRING, vp);
if (ok && !IS_EMPTY(JSVAL_TO_STRING(*vp))) {
roots[VAL_ROOT] = *vp;
if ((JSXML *) XMLArrayCursorItem(&cursor) == kid)
ok = Replace(cx, kid, 0, *vp);
}
}
XMLArrayCursorFinish(&cursor);
} else {
/* 15(a). */
ok = Replace(cx, xml, matchIndex, *vp);
}
}
out:
JS_POP_TEMP_ROOT(cx, &tvr);
js_LeaveLocalRootScope(cx);
return ok;
type_error:
JS_ReportErrorNumber(cx, js_GetErrorMessage, NULL,
JSMSG_BAD_XMLLIST_PUT,
js_ValueToPrintableString(cx, id));
bad:
ok = JS_FALSE;
goto out;
}
/* ECMA-357 9.1.1.10 XML [[ResolveValue]], 9.2.1.10 XMLList [[ResolveValue]]. */
static JSBool
ResolveValue(JSContext *cx, JSXML *list, JSXML **result)
{
JSXML *target, *base;
JSXMLQName *targetprop;
JSObject *targetpropobj;
jsval id, tv;
/* Our caller must be protecting newborn objects. */
JS_ASSERT(cx->localRootStack);
if (list->xml_class != JSXML_CLASS_LIST || list->xml_kids.length != 0) {
if (!js_GetXMLObject(cx, list))
return JS_FALSE;
*result = list;
return JS_TRUE;
}
target = list->xml_target;
targetprop = list->xml_targetprop;
if (!target || !targetprop || IS_STAR(targetprop->localName)) {
*result = NULL;
return JS_TRUE;
}
targetpropobj = js_GetXMLQNameObject(cx, targetprop);
if (!targetpropobj)
return JS_FALSE;
if (OBJ_GET_CLASS(cx, targetpropobj) == &js_AttributeNameClass) {
*result = NULL;
return JS_TRUE;
}
if (!ResolveValue(cx, target, &base))
return JS_FALSE;
if (!base) {
*result = NULL;
return JS_TRUE;
}
if (!js_GetXMLObject(cx, base))
return JS_FALSE;
id = OBJECT_TO_JSVAL(targetpropobj);
if (!GetProperty(cx, base->object, id, &tv))
return JS_FALSE;
target = (JSXML *) JS_GetPrivate(cx, JSVAL_TO_OBJECT(tv));
if (JSXML_LENGTH(target) == 0) {
if (base->xml_class == JSXML_CLASS_LIST && JSXML_LENGTH(base) > 1) {
*result = NULL;
return JS_TRUE;
}
tv = STRING_TO_JSVAL(cx->runtime->emptyString);
if (!PutProperty(cx, base->object, id, &tv))
return JS_FALSE;
if (!GetProperty(cx, base->object, id, &tv))
return JS_FALSE;
target = (JSXML *) JS_GetPrivate(cx, JSVAL_TO_OBJECT(tv));
}
*result = target;
return JS_TRUE;
}
static JSBool
HasNamedProperty(JSXML *xml, JSXMLQName *nameqn)
{
JSBool found;
JSXMLArrayCursor cursor;
JSXML *kid;
JSXMLArray *array;
JSXMLNameMatcher matcher;
uint32 i, n;
if (xml->xml_class == JSXML_CLASS_LIST) {
found = JS_FALSE;
XMLArrayCursorInit(&cursor, &xml->xml_kids);
while ((kid = (JSXML *) XMLArrayCursorNext(&cursor)) != NULL) {
found = HasNamedProperty(kid, nameqn);
if (found)
break;
}
XMLArrayCursorFinish(&cursor);
return found;
}
if (xml->xml_class == JSXML_CLASS_ELEMENT) {
if (OBJ_GET_CLASS(cx, nameqn->object) == &js_AttributeNameClass) {
array = &xml->xml_attrs;
matcher = MatchAttrName;
} else {
array = &xml->xml_kids;
matcher = MatchElemName;
}
for (i = 0, n = array->length; i < n; i++) {
kid = XMLARRAY_MEMBER(array, i, JSXML);
if (kid && matcher(nameqn, kid))
return JS_TRUE;
}
}
return JS_FALSE;
}
static JSBool
HasIndexedProperty(JSXML *xml, uint32 i)
{
if (xml->xml_class == JSXML_CLASS_LIST)
return i < JSXML_LENGTH(xml);
if (xml->xml_class == JSXML_CLASS_ELEMENT)
return i == 0;
return JS_FALSE;
}
static JSBool
HasSimpleContent(JSXML *xml);
static JSBool
HasFunctionProperty(JSContext *cx, JSObject *obj, jsid funid, JSBool *found)
{
JSObject *pobj;
JSProperty *prop;
JSXML *xml;
JSTempValueRooter tvr;
JSBool ok;
JS_ASSERT(OBJ_GET_CLASS(cx, obj) == &js_XMLClass);
if (!js_LookupProperty(cx, obj, funid, &pobj, &prop))
return JS_FALSE;
if (prop) {
OBJ_DROP_PROPERTY(cx, pobj, prop);
} else {
xml = (JSXML *) JS_GetPrivate(cx, obj);
if (HasSimpleContent(xml)) {
/*
* Search in String.prototype to set found whenever
* js_GetXMLFunction returns existing function.
*/
JS_PUSH_TEMP_ROOT_OBJECT(cx, NULL, &tvr);
ok = js_GetClassPrototype(cx, NULL, INT_TO_JSID(JSProto_String),
&tvr.u.object);
JS_ASSERT(tvr.u.object);
if (ok) {
ok = js_LookupProperty(cx, tvr.u.object, funid, &pobj, &prop);
if (ok && prop)
OBJ_DROP_PROPERTY(cx, pobj, prop);
}
JS_POP_TEMP_ROOT(cx, &tvr);
if (!ok)
return JS_FALSE;
}
}
*found = (prop != NULL);
return JS_TRUE;
}
/* ECMA-357 9.1.1.6 XML [[HasProperty]] and 9.2.1.5 XMLList [[HasProperty]]. */
static JSBool
HasProperty(JSContext *cx, JSObject *obj, jsval id, JSBool *found)
{
JSXML *xml;
uint32 i;
JSXMLQName *qn;
jsid funid;
xml = (JSXML *) JS_GetPrivate(cx, obj);
if (js_IdIsIndex(id, &i)) {
*found = HasIndexedProperty(xml, i);
} else {
qn = ToXMLName(cx, id, &funid);
if (!qn)
return JS_FALSE;
if (funid) {
if (!HasFunctionProperty(cx, obj, funid, found))
return JS_FALSE;
} else {
*found = HasNamedProperty(xml, qn);
}
}
return JS_TRUE;
}
static void
xml_finalize(JSContext *cx, JSObject *obj)
{
JSXML *xml;
xml = (JSXML *) JS_GetPrivate(cx, obj);
if (!xml)
return;
if (xml->object == obj)
xml->object = NULL;
UNMETER(xml_stats.livexmlobj);
}
static void
xml_trace_vector(JSTracer *trc, JSXML **vec, uint32 len)
{
uint32 i;
JSXML *xml;
for (i = 0; i < len; i++) {
xml = vec[i];
if (xml) {
JS_SET_TRACING_INDEX(trc, "xml_vector", i);
JS_CallTracer(trc, xml, JSTRACE_XML);
}
}
}
/*
* js_XMLObjectOps.newObjectMap == js_NewObjectMap, so XML objects appear to
* be native. Therefore, xml_lookupProperty must return a valid JSProperty
* pointer parameter via *propp to signify "property found". Since the only
* call to xml_lookupProperty is via OBJ_LOOKUP_PROPERTY, and then only from
* js_FindProperty (in jsobj.c, called from jsinterp.c) or from JSOP_IN case
* in the interpreter, the only time we add a JSScopeProperty here is when an
* unqualified name is being accessed or when "name in xml" is called.
*
* This scope property keeps the JSOP_NAME code in js_Interpret happy by
* giving it an sprop with (getter, setter) == (GetProperty, PutProperty).
*
* NB: xml_deleteProperty must take care to remove any property added here.
*
* FIXME This clashes with the function namespace implementation which also
* uses native properties. Effectively after xml_lookupProperty any property
* stored previously using assignments to xml.function::name will be removed.
* We partially workaround the problem in js_GetXMLFunction. There we take
* advantage of the fact that typically function:: is used to access the
* functions from XML.prototype. So when js_GetProperty returns a non-function
* property, we assume that it represents the result of GetProperty setter
* hiding the function and use an extra prototype chain lookup to recover it.
* For a proper solution see bug 355257.
*/
static JSBool
xml_lookupProperty(JSContext *cx, JSObject *obj, jsid id, JSObject **objp,
JSProperty **propp)
{
jsval v;
JSBool found;
JSXML *xml;
uint32 i;
JSXMLQName *qn;
jsid funid;
JSScopeProperty *sprop;
v = ID_TO_VALUE(id);
xml = (JSXML *) JS_GetPrivate(cx, obj);
if (js_IdIsIndex(v, &i)) {
found = HasIndexedProperty(xml, i);
} else {
qn = ToXMLName(cx, v, &funid);
if (!qn)
return JS_FALSE;
if (funid)
return js_LookupProperty(cx, obj, funid, objp, propp);
found = HasNamedProperty(xml, qn);
}
if (!found) {
*objp = NULL;
*propp = NULL;
} else {
sprop = js_AddNativeProperty(cx, obj, id, GetProperty, PutProperty,
SPROP_INVALID_SLOT, JSPROP_ENUMERATE,
0, 0);
if (!sprop)
return JS_FALSE;
JS_LOCK_OBJ(cx, obj);
*objp = obj;
*propp = (JSProperty *) sprop;
}
return JS_TRUE;
}
static JSBool
xml_defineProperty(JSContext *cx, JSObject *obj, jsid id, jsval value,
JSPropertyOp getter, JSPropertyOp setter, uintN attrs,
JSProperty **propp)
{
if (VALUE_IS_FUNCTION(cx, value) || getter || setter ||
(attrs & JSPROP_ENUMERATE) == 0 ||
(attrs & (JSPROP_READONLY | JSPROP_PERMANENT | JSPROP_SHARED))) {
return js_DefineProperty(cx, obj, id, value, getter, setter, attrs,
propp);
}
if (!PutProperty(cx, obj, ID_TO_VALUE(id), &value))
return JS_FALSE;
if (propp)
*propp = NULL;
return JS_TRUE;
}
static JSBool
xml_getProperty(JSContext *cx, JSObject *obj, jsid id, jsval *vp)
{
if (id == JS_DEFAULT_XML_NAMESPACE_ID) {
*vp = JSVAL_VOID;
return JS_TRUE;
}
return GetProperty(cx, obj, ID_TO_VALUE(id), vp);
}
static JSBool
xml_setProperty(JSContext *cx, JSObject *obj, jsid id, jsval *vp)
{
return PutProperty(cx, obj, ID_TO_VALUE(id), vp);
}
static JSBool
FoundProperty(JSContext *cx, JSObject *obj, jsid id, JSProperty *prop,
JSBool *foundp)
{
if (!prop)
return HasProperty(cx, obj, ID_TO_VALUE(id), foundp);
*foundp = JS_TRUE;
return JS_TRUE;
}
static JSBool
xml_getAttributes(JSContext *cx, JSObject *obj, jsid id, JSProperty *prop,
uintN *attrsp)
{
JSBool found;
if (!FoundProperty(cx, obj, id, prop, &found))
return JS_FALSE;
*attrsp = found ? JSPROP_ENUMERATE : 0;
return JS_TRUE;
}
static JSBool
xml_setAttributes(JSContext *cx, JSObject *obj, jsid id, JSProperty *prop,
uintN *attrsp)
{
JSBool found;
if (!FoundProperty(cx, obj, id, prop, &found))
return JS_FALSE;
if (found) {
JS_ReportErrorNumber(cx, js_GetErrorMessage, NULL,
JSMSG_CANT_SET_XML_ATTRS);
}
return !found;
}
static JSBool
xml_deleteProperty(JSContext *cx, JSObject *obj, jsid id, jsval *rval)
{
JSXML *xml;
jsval idval;
uint32 index;
JSXMLQName *nameqn;
jsid funid;
idval = ID_TO_VALUE(id);
xml = (JSXML *) JS_GetPrivate(cx, obj);
if (js_IdIsIndex(idval, &index)) {
if (xml->xml_class != JSXML_CLASS_LIST) {
/* See NOTE in spec: this variation is reserved for future use. */
ReportBadXMLName(cx, id);
return JS_FALSE;
}
/* ECMA-357 9.2.1.3. */
DeleteListElement(cx, xml, index);
} else {
nameqn = ToXMLName(cx, idval, &funid);
if (!nameqn)
return JS_FALSE;
if (funid)
return js_DeleteProperty(cx, obj, funid, rval);
DeleteNamedProperty(cx, xml, nameqn,
OBJ_GET_CLASS(cx, nameqn->object) ==
&js_AttributeNameClass);
}
/*
* If this object has its own (mutable) scope, then we may have added a
* property to the scope in xml_lookupProperty for it to return to mean
* "found" and to provide a handle for access operations to call the
* property's getter or setter. But now it's time to remove any such
* property, to purge the property cache and remove the scope entry.
*/
if (OBJ_SCOPE(obj)->object == obj && !js_DeleteProperty(cx, obj, id, rval))
return JS_FALSE;
*rval = JSVAL_TRUE;
return JS_TRUE;
}
static JSBool
xml_defaultValue(JSContext *cx, JSObject *obj, JSType hint, jsval *vp)
{
JSXML *xml;
if (hint == JSTYPE_OBJECT) {
/* Called from for..in code in js_Interpret: return an XMLList. */
xml = (JSXML *) JS_GetPrivate(cx, obj);
if (xml->xml_class != JSXML_CLASS_LIST) {
obj = ToXMLList(cx, OBJECT_TO_JSVAL(obj));
if (!obj)
return JS_FALSE;
}
*vp = OBJECT_TO_JSVAL(obj);
return JS_TRUE;
}
return JS_CallFunctionName(cx, obj, js_toString_str, 0, NULL, vp);
}
static JSBool
xml_enumerate(JSContext *cx, JSObject *obj, JSIterateOp enum_op,
jsval *statep, jsid *idp)
{
JSXML *xml;
uint32 length, index;
JSXMLArrayCursor *cursor;
xml = (JSXML *) JS_GetPrivate(cx, obj);
length = JSXML_LENGTH(xml);
switch (enum_op) {
case JSENUMERATE_INIT:
if (length == 0) {
cursor = NULL;
} else {
cursor = (JSXMLArrayCursor *) JS_malloc(cx, sizeof *cursor);
if (!cursor)
return JS_FALSE;
XMLArrayCursorInit(cursor, &xml->xml_kids);
}
*statep = PRIVATE_TO_JSVAL(cursor);
if (idp)
*idp = INT_TO_JSID(length);
break;
case JSENUMERATE_NEXT:
cursor = (JSXMLArrayCursor *) JSVAL_TO_PRIVATE(*statep);
if (cursor && cursor->array && (index = cursor->index) < length) {
*idp = INT_TO_JSID(index);
cursor->index = index + 1;
break;
}
/* FALL THROUGH */
case JSENUMERATE_DESTROY:
cursor = (JSXMLArrayCursor *) JSVAL_TO_PRIVATE(*statep);
if (cursor) {
XMLArrayCursorFinish(cursor);
JS_free(cx, cursor);
}
*statep = JSVAL_NULL;
break;
}
return JS_TRUE;
}
static JSBool
xml_hasInstance(JSContext *cx, JSObject *obj, jsval v, JSBool *bp)
{
return JS_TRUE;
}
static void
xml_trace(JSTracer *trc, JSObject *obj)
{
JSXML *xml;
xml = (JSXML *) JS_GetPrivate(trc->context, obj);
if (xml)
JS_CALL_TRACER(trc, xml, JSTRACE_XML, "private");
}
static void
xml_clear(JSContext *cx, JSObject *obj)
{
}
static JSBool
HasSimpleContent(JSXML *xml)
{
JSXML *kid;
JSBool simple;
uint32 i, n;
again:
switch (xml->xml_class) {
case JSXML_CLASS_COMMENT:
case JSXML_CLASS_PROCESSING_INSTRUCTION:
return JS_FALSE;
case JSXML_CLASS_LIST:
if (xml->xml_kids.length == 0)
return JS_TRUE;
if (xml->xml_kids.length == 1) {
kid = XMLARRAY_MEMBER(&xml->xml_kids, 0, JSXML);
if (kid) {
xml = kid;
goto again;
}
}
/* FALL THROUGH */
default:
simple = JS_TRUE;
for (i = 0, n = JSXML_LENGTH(xml); i < n; i++) {
kid = XMLARRAY_MEMBER(&xml->xml_kids, i, JSXML);
if (kid && kid->xml_class == JSXML_CLASS_ELEMENT) {
simple = JS_FALSE;
break;
}
}
return simple;
}
}
/*
* 11.2.2.1 Step 3(d) onward.
*/
static JSObject *
xml_getMethod(JSContext *cx, JSObject *obj, jsid id, jsval *vp)
{
JSTempValueRooter tvr;
JS_ASSERT(JS_InstanceOf(cx, obj, &js_XMLClass, NULL));
/*
* As our callers have a bad habit of passing a pointer to an unrooted
* local value as vp, we use a proper root here.
*/
JS_PUSH_SINGLE_TEMP_ROOT(cx, JSVAL_NULL, &tvr);
if (!js_GetXMLFunction(cx, obj, id, &tvr.u.value))
obj = NULL;
*vp = tvr.u.value;
JS_POP_TEMP_ROOT(cx, &tvr);
return obj;
}
static JSBool
xml_setMethod(JSContext *cx, JSObject *obj, jsid id, jsval *vp)
{
return js_SetProperty(cx, obj, id, vp);
}
static JSBool
xml_enumerateValues(JSContext *cx, JSObject *obj, JSIterateOp enum_op,
jsval *statep, jsid *idp, jsval *vp)
{
JSXML *xml, *kid;
uint32 length, index;
JSXMLArrayCursor *cursor;
JSObject *kidobj;
xml = (JSXML *) JS_GetPrivate(cx, obj);
length = JSXML_LENGTH(xml);
JS_ASSERT(INT_FITS_IN_JSVAL(length));
switch (enum_op) {
case JSENUMERATE_INIT:
if (length == 0) {
cursor = NULL;
} else {
cursor = (JSXMLArrayCursor *) JS_malloc(cx, sizeof *cursor);
if (!cursor)
return JS_FALSE;
XMLArrayCursorInit(cursor, &xml->xml_kids);
}
*statep = PRIVATE_TO_JSVAL(cursor);
if (idp)
*idp = INT_TO_JSID(length);
if (vp)
*vp = JSVAL_VOID;
break;
case JSENUMERATE_NEXT:
cursor = (JSXMLArrayCursor *) JSVAL_TO_PRIVATE(*statep);
if (cursor && cursor->array && (index = cursor->index) < length) {
while (!(kid = XMLARRAY_MEMBER(&xml->xml_kids, index, JSXML))) {
if (++index == length)
goto destroy;
}
kidobj = js_GetXMLObject(cx, kid);
if (!kidobj)
return JS_FALSE;
JS_ASSERT(INT_FITS_IN_JSVAL(index));
*idp = INT_TO_JSID(index);
*vp = OBJECT_TO_JSVAL(kidobj);
cursor->index = index + 1;
break;
}
/* FALL THROUGH */
case JSENUMERATE_DESTROY:
cursor = (JSXMLArrayCursor *) JSVAL_TO_PRIVATE(*statep);
if (cursor) {
destroy:
XMLArrayCursorFinish(cursor);
JS_free(cx, cursor);
}
*statep = JSVAL_NULL;
break;
}
return JS_TRUE;
}
static JSBool
xml_equality(JSContext *cx, JSObject *obj, jsval v, JSBool *bp)
{
JSXML *xml, *vxml;
JSObject *vobj;
JSBool ok;
JSString *str, *vstr;
jsdouble d, d2;
xml = (JSXML *) JS_GetPrivate(cx, obj);
vxml = NULL;
if (!JSVAL_IS_PRIMITIVE(v)) {
vobj = JSVAL_TO_OBJECT(v);
if (OBJECT_IS_XML(cx, vobj))
vxml = (JSXML *) JS_GetPrivate(cx, vobj);
}
if (xml->xml_class == JSXML_CLASS_LIST) {
ok = Equals(cx, xml, v, bp);
} else if (vxml) {
if (vxml->xml_class == JSXML_CLASS_LIST) {
ok = Equals(cx, vxml, OBJECT_TO_JSVAL(obj), bp);
} else {
if (((xml->xml_class == JSXML_CLASS_TEXT ||
xml->xml_class == JSXML_CLASS_ATTRIBUTE) &&
HasSimpleContent(vxml)) ||
((vxml->xml_class == JSXML_CLASS_TEXT ||
vxml->xml_class == JSXML_CLASS_ATTRIBUTE) &&
HasSimpleContent(xml))) {
ok = js_EnterLocalRootScope(cx);
if (ok) {
str = js_ValueToString(cx, OBJECT_TO_JSVAL(obj));
vstr = js_ValueToString(cx, v);
ok = str && vstr;
if (ok)
*bp = js_EqualStrings(str, vstr);
js_LeaveLocalRootScope(cx);
}
} else {
ok = XMLEquals(cx, xml, vxml, bp);
}
}
} else {
ok = js_EnterLocalRootScope(cx);
if (ok) {
if (HasSimpleContent(xml)) {
str = js_ValueToString(cx, OBJECT_TO_JSVAL(obj));
vstr = js_ValueToString(cx, v);
ok = str && vstr;
if (ok)
*bp = js_EqualStrings(str, vstr);
} else if (JSVAL_IS_STRING(v) || JSVAL_IS_NUMBER(v)) {
str = js_ValueToString(cx, OBJECT_TO_JSVAL(obj));
if (!str) {
ok = JS_FALSE;
} else if (JSVAL_IS_STRING(v)) {
*bp = js_EqualStrings(str, JSVAL_TO_STRING(v));
} else {
ok = js_ValueToNumber(cx, STRING_TO_JSVAL(str), &d);
if (ok) {
d2 = JSVAL_IS_INT(v) ? JSVAL_TO_INT(v)
: *JSVAL_TO_DOUBLE(v);
*bp = JSDOUBLE_COMPARE(d, ==, d2, JS_FALSE);
}
}
} else {
*bp = JS_FALSE;
}
js_LeaveLocalRootScope(cx);
}
}
return ok;
}
static JSBool
xml_concatenate(JSContext *cx, JSObject *obj, jsval v, jsval *vp)
{
JSBool ok;
JSObject *listobj, *robj;
JSXML *list, *lxml, *rxml;
ok = js_EnterLocalRootScope(cx);
if (!ok)
return JS_FALSE;
listobj = js_NewXMLObject(cx, JSXML_CLASS_LIST);
if (!listobj) {
ok = JS_FALSE;
goto out;
}
list = (JSXML *) JS_GetPrivate(cx, listobj);
lxml = (JSXML *) JS_GetPrivate(cx, obj);
ok = Append(cx, list, lxml);
if (!ok)
goto out;
if (VALUE_IS_XML(cx, v)) {
rxml = (JSXML *) JS_GetPrivate(cx, JSVAL_TO_OBJECT(v));
} else {
robj = ToXML(cx, v);
if (!robj) {
ok = JS_FALSE;
goto out;
}
rxml = (JSXML *) JS_GetPrivate(cx, robj);
}
ok = Append(cx, list, rxml);
if (!ok)
goto out;
*vp = OBJECT_TO_JSVAL(listobj);
out:
js_LeaveLocalRootScopeWithResult(cx, *vp);
return ok;
}
/* Use js_NewObjectMap so XML objects satisfy OBJ_IS_NATIVE tests. */
JS_FRIEND_DATA(JSXMLObjectOps) js_XMLObjectOps = {
{ js_NewObjectMap, js_DestroyObjectMap,
xml_lookupProperty, xml_defineProperty,
xml_getProperty, xml_setProperty,
xml_getAttributes, xml_setAttributes,
xml_deleteProperty, xml_defaultValue,
xml_enumerate, js_CheckAccess,
NULL, NULL,
NULL, NULL,
NULL, xml_hasInstance,
js_SetProtoOrParent, js_SetProtoOrParent,
js_TraceObject, xml_clear,
NULL, NULL },
xml_getMethod, xml_setMethod,
xml_enumerateValues, xml_equality,
xml_concatenate
};
static JSObjectOps *
xml_getObjectOps(JSContext *cx, JSClass *clasp)
{
return &js_XMLObjectOps.base;
}
JS_FRIEND_DATA(JSClass) js_XMLClass = {
js_XML_str,
JSCLASS_HAS_PRIVATE | JSCLASS_MARK_IS_TRACE |
JSCLASS_HAS_CACHED_PROTO(JSProto_XML),
JS_PropertyStub, JS_PropertyStub, JS_PropertyStub, JS_PropertyStub,
JS_EnumerateStub, JS_ResolveStub, JS_ConvertStub, xml_finalize,
xml_getObjectOps, NULL, NULL, NULL,
NULL, NULL, JS_CLASS_TRACE(xml_trace), NULL
};
static JSObject *
CallConstructorFunction(JSContext *cx, JSObject *obj, JSClass *clasp,
uintN argc, jsval *argv)
{
JSObject *tmp;
jsval rval;
while ((tmp = OBJ_GET_PARENT(cx, obj)) != NULL)
obj = tmp;
if (!JS_CallFunctionName(cx, obj, clasp->name, argc, argv, &rval))
return NULL;
JS_ASSERT(!JSVAL_IS_PRIMITIVE(rval));
return JSVAL_TO_OBJECT(rval);
}
static JSXML *
StartNonListXMLMethod(JSContext *cx, jsval *vp, JSObject **objp)
{
JSXML *xml;
JSFunction *fun;
JS_ASSERT(VALUE_IS_FUNCTION(cx, *vp));
*objp = JS_THIS_OBJECT(cx, vp);
xml = (JSXML *) JS_GetInstancePrivate(cx, *objp, &js_XMLClass, vp + 2);
if (!xml || xml->xml_class != JSXML_CLASS_LIST)
return xml;
if (xml->xml_kids.length == 1) {
xml = XMLARRAY_MEMBER(&xml->xml_kids, 0, JSXML);
if (xml) {
*objp = js_GetXMLObject(cx, xml);
if (!*objp)
return NULL;
vp[1] = OBJECT_TO_JSVAL(*objp);
return xml;
}
}
fun = (JSFunction *) OBJ_GET_PRIVATE(cx, JSVAL_TO_OBJECT(*vp));
if (fun) {
char numBuf[12];
JS_snprintf(numBuf, sizeof numBuf, "%u", xml->xml_kids.length);
JS_ReportErrorNumber(cx, js_GetErrorMessage, NULL,
JSMSG_NON_LIST_XML_METHOD,
JS_GetFunctionName(fun), numBuf);
}
return NULL;
}
/* Beware: these two are not bracketed by JS_BEGIN/END_MACRO. */
#define XML_METHOD_PROLOG \
JSObject *obj = JS_THIS_OBJECT(cx, vp); \
JSXML *xml = (JSXML *)JS_GetInstancePrivate(cx, obj, &js_XMLClass, vp+2); \
if (!xml) \
return JS_FALSE
#define NON_LIST_XML_METHOD_PROLOG \
JSObject *obj; \
JSXML *xml = StartNonListXMLMethod(cx, vp, &obj); \
if (!xml) \
return JS_FALSE; \
JS_ASSERT(xml->xml_class != JSXML_CLASS_LIST)
static JSBool
xml_addNamespace(JSContext *cx, uintN argc, jsval *vp)
{
JSObject *nsobj;
JSXMLNamespace *ns;
NON_LIST_XML_METHOD_PROLOG;
if (xml->xml_class != JSXML_CLASS_ELEMENT)
return JS_TRUE;
xml = CHECK_COPY_ON_WRITE(cx, xml, obj);
if (!xml)
return JS_FALSE;
nsobj = CallConstructorFunction(cx, obj, &js_NamespaceClass.base, 1,
vp + 2);
if (!nsobj)
return JS_FALSE;
vp[2] = OBJECT_TO_JSVAL(nsobj);
ns = (JSXMLNamespace *) JS_GetPrivate(cx, nsobj);
if (!AddInScopeNamespace(cx, xml, ns))
return JS_FALSE;
ns->declared = JS_TRUE;
*vp = OBJECT_TO_JSVAL(obj);
return JS_TRUE;
}
static JSBool
xml_appendChild(JSContext *cx, uintN argc, jsval *vp)
{
jsval name, v;
JSObject *vobj;
JSXML *vxml;
NON_LIST_XML_METHOD_PROLOG;
xml = CHECK_COPY_ON_WRITE(cx, xml, obj);
if (!xml)
return JS_FALSE;
if (!js_GetAnyName(cx, &name))
return JS_FALSE;
if (!GetProperty(cx, obj, name, &v))
return JS_FALSE;
JS_ASSERT(!JSVAL_IS_PRIMITIVE(v));
vobj = JSVAL_TO_OBJECT(v);
JS_ASSERT(OBJECT_IS_XML(cx, vobj));
vxml = (JSXML *) JS_GetPrivate(cx, vobj);
JS_ASSERT(vxml->xml_class == JSXML_CLASS_LIST);
if (!IndexToIdVal(cx, vxml->xml_kids.length, &name))
return JS_FALSE;
if (!PutProperty(cx, JSVAL_TO_OBJECT(v), name, &vp[2]))
return JS_FALSE;
*vp = OBJECT_TO_JSVAL(obj);
return JS_TRUE;
}
/* XML and XMLList */
static JSBool
xml_attribute(JSContext *cx, uintN argc, jsval *vp)
{
JSXMLQName *qn;
qn = ToAttributeName(cx, vp[2]);
if (!qn)
return JS_FALSE;
vp[2] = OBJECT_TO_JSVAL(qn->object); /* local root */
return GetProperty(cx, JS_THIS_OBJECT(cx, vp), vp[2], vp);
}
/* XML and XMLList */
static JSBool
xml_attributes(JSContext *cx, uintN argc, jsval *vp)
{
jsval name;
JSXMLQName *qn;
JSTempValueRooter tvr;
JSBool ok;
name = ATOM_KEY(cx->runtime->atomState.starAtom);
qn = ToAttributeName(cx, name);
if (!qn)
return JS_FALSE;
name = OBJECT_TO_JSVAL(qn->object);
JS_PUSH_SINGLE_TEMP_ROOT(cx, name, &tvr);
ok = GetProperty(cx, JS_THIS_OBJECT(cx, vp), name, vp);
JS_POP_TEMP_ROOT(cx, &tvr);
return ok;
}
static JSXML *
xml_list_helper(JSContext *cx, JSXML *xml, jsval *rval)
{
JSObject *listobj;
JSXML *list;
listobj = js_NewXMLObject(cx, JSXML_CLASS_LIST);
if (!listobj)
return NULL;
*rval = OBJECT_TO_JSVAL(listobj);
list = (JSXML *) JS_GetPrivate(cx, listobj);
list->xml_target = xml;
return list;
}
static JSBool
xml_child_helper(JSContext *cx, JSObject *obj, JSXML *xml, jsval name,
jsval *rval)
{
uint32 index;
JSXML *kid;
JSObject *kidobj;
/* ECMA-357 13.4.4.6 */
JS_ASSERT(xml->xml_class != JSXML_CLASS_LIST);
if (js_IdIsIndex(name, &index)) {
if (index >= JSXML_LENGTH(xml)) {
*rval = JSVAL_VOID;
} else {
kid = XMLARRAY_MEMBER(&xml->xml_kids, index, JSXML);
if (!kid) {
*rval = JSVAL_VOID;
} else {
kidobj = js_GetXMLObject(cx, kid);
if (!kidobj)
return JS_FALSE;
*rval = OBJECT_TO_JSVAL(kidobj);
}
}
return JS_TRUE;
}
return GetProperty(cx, obj, name, rval);
}
/* XML and XMLList */
static JSBool
xml_child(JSContext *cx, uintN argc, jsval *vp)
{
jsval name, v;
JSXML *list, *kid, *vxml;
JSXMLArrayCursor cursor;
JSObject *kidobj;
XML_METHOD_PROLOG;
name = vp[2];
if (xml->xml_class == JSXML_CLASS_LIST) {
/* ECMA-357 13.5.4.4 */
list = xml_list_helper(cx, xml, vp);
if (!list)
return JS_FALSE;
XMLArrayCursorInit(&cursor, &xml->xml_kids);
while ((kid = (JSXML *) XMLArrayCursorNext(&cursor)) != NULL) {
kidobj = js_GetXMLObject(cx, kid);
if (!kidobj)
break;
if (!xml_child_helper(cx, kidobj, kid, name, &v))
break;
if (JSVAL_IS_VOID(v)) {
/* The property didn't exist in this kid. */
continue;
}
JS_ASSERT(!JSVAL_IS_PRIMITIVE(v));
vxml = (JSXML *) JS_GetPrivate(cx, JSVAL_TO_OBJECT(v));
if ((!JSXML_HAS_KIDS(vxml) || vxml->xml_kids.length != 0) &&
!Append(cx, list, vxml)) {
break;
}
}
XMLArrayCursorFinish(&cursor);
return !kid;
}
/* ECMA-357 Edition 2 13.3.4.6 (note 13.3, not 13.4 as in Edition 1). */
if (!xml_child_helper(cx, obj, xml, name, vp))
return JS_FALSE;
if (JSVAL_IS_VOID(*vp) && !xml_list_helper(cx, xml, vp))
return JS_FALSE;
return JS_TRUE;
}
static JSBool
xml_childIndex(JSContext *cx, uintN argc, jsval *vp)
{
JSXML *parent;
uint32 i, n;
NON_LIST_XML_METHOD_PROLOG;
parent = xml->parent;
if (!parent || xml->xml_class == JSXML_CLASS_ATTRIBUTE) {
*vp = DOUBLE_TO_JSVAL(cx->runtime->jsNaN);
return JS_TRUE;
}
for (i = 0, n = JSXML_LENGTH(parent); i < n; i++) {
if (XMLARRAY_MEMBER(&parent->xml_kids, i, JSXML) == xml)
break;
}
JS_ASSERT(i < n);
return js_NewNumberValue(cx, i, vp);
}
/* XML and XMLList */
static JSBool
xml_children(JSContext *cx, uintN argc, jsval *vp)
{
jsval name;
name = ATOM_KEY(cx->runtime->atomState.starAtom);
return GetProperty(cx, JS_THIS_OBJECT(cx, vp), name, vp);
}
/* XML and XMLList */
static JSBool
xml_comments_helper(JSContext *cx, JSObject *obj, JSXML *xml, jsval *vp)
{
JSXML *list, *kid, *vxml;
JSBool ok;
uint32 i, n;
JSObject *kidobj;
jsval v;
list = xml_list_helper(cx, xml, vp);
if (!list)
return JS_FALSE;
ok = JS_TRUE;
if (xml->xml_class == JSXML_CLASS_LIST) {
/* 13.5.4.6 Step 2. */
for (i = 0, n = JSXML_LENGTH(xml); i < n; i++) {
kid = XMLARRAY_MEMBER(&xml->xml_kids, i, JSXML);
if (kid && kid->xml_class == JSXML_CLASS_ELEMENT) {
ok = js_EnterLocalRootScope(cx);
if (!ok)
break;
kidobj = js_GetXMLObject(cx, kid);
if (kidobj) {
ok = xml_comments_helper(cx, kidobj, kid, &v);
} else {
ok = JS_FALSE;
v = JSVAL_NULL;
}
js_LeaveLocalRootScopeWithResult(cx, v);
if (!ok)
break;
vxml = (JSXML *) JS_GetPrivate(cx, JSVAL_TO_OBJECT(v));
if (JSXML_LENGTH(vxml) != 0) {
ok = Append(cx, list, vxml);
if (!ok)
break;
}
}
}
} else {
/* 13.4.4.9 Step 2. */
for (i = 0, n = JSXML_LENGTH(xml); i < n; i++) {
kid = XMLARRAY_MEMBER(&xml->xml_kids, i, JSXML);
if (kid && kid->xml_class == JSXML_CLASS_COMMENT) {
ok = Append(cx, list, kid);
if (!ok)
break;
}
}
}
return ok;
}
static JSBool
xml_comments(JSContext *cx, uintN argc, jsval *vp)
{
XML_METHOD_PROLOG;
return xml_comments_helper(cx, obj, xml, vp);
}
/* XML and XMLList */
static JSBool
xml_contains(JSContext *cx, uintN argc, jsval *vp)
{
jsval value;
JSBool eq;
JSXMLArrayCursor cursor;
JSXML *kid;
JSObject *kidobj;
XML_METHOD_PROLOG;
value = vp[2];
if (xml->xml_class == JSXML_CLASS_LIST) {
eq = JS_FALSE;
XMLArrayCursorInit(&cursor, &xml->xml_kids);
while ((kid = (JSXML *) XMLArrayCursorNext(&cursor)) != NULL) {
kidobj = js_GetXMLObject(cx, kid);
if (!kidobj || !xml_equality(cx, kidobj, value, &eq))
break;
if (eq)
break;
}
XMLArrayCursorFinish(&cursor);
if (kid && !eq)
return JS_FALSE;
} else {
if (!xml_equality(cx, obj, value, &eq))
return JS_FALSE;
}
*vp = BOOLEAN_TO_JSVAL(eq);
return JS_TRUE;
}
/* XML and XMLList */
static JSBool
xml_copy(JSContext *cx, uintN argc, jsval *vp)
{
JSXML *copy;
XML_METHOD_PROLOG;
copy = DeepCopy(cx, xml, NULL, 0);
if (!copy)
return JS_FALSE;
*vp = OBJECT_TO_JSVAL(copy->object);
return JS_TRUE;
}
/* XML and XMLList */
static JSBool
xml_descendants(JSContext *cx, uintN argc, jsval *vp)
{
jsval name;
JSXML *list;
XML_METHOD_PROLOG;
name = (argc == 0) ? ATOM_KEY(cx->runtime->atomState.starAtom) : vp[2];
list = Descendants(cx, xml, name);
if (!list)
return JS_FALSE;
*vp = OBJECT_TO_JSVAL(list->object);
return JS_TRUE;
}
/* XML and XMLList */
static JSBool
xml_elements_helper(JSContext *cx, JSObject *obj, JSXML *xml,
JSXMLQName *nameqn, jsval *vp)
{
JSXML *list, *kid, *vxml;
jsval v;
JSBool ok;
JSXMLArrayCursor cursor;
JSObject *kidobj;
uint32 i, n;
list = xml_list_helper(cx, xml, vp);
if (!list)
return JS_FALSE;
list->xml_targetprop = nameqn;
ok = JS_TRUE;
if (xml->xml_class == JSXML_CLASS_LIST) {
/* 13.5.4.6 */
XMLArrayCursorInit(&cursor, &xml->xml_kids);
while ((kid = (JSXML *) XMLArrayCursorNext(&cursor)) != NULL) {
if (kid->xml_class == JSXML_CLASS_ELEMENT) {
ok = js_EnterLocalRootScope(cx);
if (!ok)
break;
kidobj = js_GetXMLObject(cx, kid);
if (kidobj) {
ok = xml_elements_helper(cx, kidobj, kid, nameqn, &v);
} else {
ok = JS_FALSE;
v = JSVAL_NULL;
}
js_LeaveLocalRootScopeWithResult(cx, v);
if (!ok)
break;
vxml = (JSXML *) JS_GetPrivate(cx, JSVAL_TO_OBJECT(v));
if (JSXML_LENGTH(vxml) != 0) {
ok = Append(cx, list, vxml);
if (!ok)
break;
}
}
}
XMLArrayCursorFinish(&cursor);
} else {
for (i = 0, n = JSXML_LENGTH(xml); i < n; i++) {
kid = XMLARRAY_MEMBER(&xml->xml_kids, i, JSXML);
if (kid && kid->xml_class == JSXML_CLASS_ELEMENT &&
MatchElemName(nameqn, kid)) {
ok = Append(cx, list, kid);
if (!ok)
break;
}
}
}
return ok;
}
static JSBool
xml_elements(JSContext *cx, uintN argc, jsval *vp)
{
jsval name;
JSXMLQName *nameqn;
jsid funid;
XML_METHOD_PROLOG;
name = (argc == 0) ? ATOM_KEY(cx->runtime->atomState.starAtom) : vp[2];
nameqn = ToXMLName(cx, name, &funid);
if (!nameqn)
return JS_FALSE;
vp[2] = OBJECT_TO_JSVAL(nameqn->object);
if (funid)
return xml_list_helper(cx, xml, vp) != NULL;
return xml_elements_helper(cx, obj, xml, nameqn, vp);
}
/* XML and XMLList */
static JSBool
xml_hasOwnProperty(JSContext *cx, uintN argc, jsval *vp)
{
JSObject *obj;
jsval name;
JSBool found;
obj = JSVAL_TO_OBJECT(vp[1]);
if (!JS_InstanceOf(cx, obj, &js_XMLClass, vp + 2))
return JS_FALSE;
name = vp[2];
if (!HasProperty(cx, obj, name, &found))
return JS_FALSE;
if (found) {
*vp = JSVAL_TRUE;
return JS_TRUE;
}
return js_HasOwnPropertyHelper(cx, js_LookupProperty, vp);
}
/* XML and XMLList */
static JSBool
xml_hasComplexContent(JSContext *cx, uintN argc, jsval *vp)
{
JSXML *kid;
JSObject *kidobj;
uint32 i, n;
XML_METHOD_PROLOG;
again:
switch (xml->xml_class) {
case JSXML_CLASS_ATTRIBUTE:
case JSXML_CLASS_COMMENT:
case JSXML_CLASS_PROCESSING_INSTRUCTION:
case JSXML_CLASS_TEXT:
*vp = JSVAL_FALSE;
break;
case JSXML_CLASS_LIST:
if (xml->xml_kids.length == 0) {
*vp = JSVAL_TRUE;
} else if (xml->xml_kids.length == 1) {
kid = XMLARRAY_MEMBER(&xml->xml_kids, 0, JSXML);
if (kid) {
kidobj = js_GetXMLObject(cx, kid);
if (!kidobj)
return JS_FALSE;
obj = kidobj;
xml = (JSXML *) JS_GetPrivate(cx, obj);
goto again;
}
}
/* FALL THROUGH */
default:
*vp = JSVAL_FALSE;
for (i = 0, n = xml->xml_kids.length; i < n; i++) {
kid = XMLARRAY_MEMBER(&xml->xml_kids, i, JSXML);
if (kid && kid->xml_class == JSXML_CLASS_ELEMENT) {
*vp = JSVAL_TRUE;
break;
}
}
break;
}
return JS_TRUE;
}
/* XML and XMLList */
static JSBool
xml_hasSimpleContent(JSContext *cx, uintN argc, jsval *vp)
{
XML_METHOD_PROLOG;
*vp = BOOLEAN_TO_JSVAL(HasSimpleContent(xml));
return JS_TRUE;
}
typedef struct JSTempRootedNSArray {
JSTempValueRooter tvr;
JSXMLArray array;
jsval value; /* extra root for temporaries */
} JSTempRootedNSArray;
JS_STATIC_DLL_CALLBACK(void)
trace_temp_ns_array(JSTracer *trc, JSTempValueRooter *tvr)
{
JSTempRootedNSArray *tmp = (JSTempRootedNSArray *)tvr;
namespace_trace_vector(trc,
(JSXMLNamespace **)tmp->array.vector,
tmp->array.length);
XMLArrayCursorTrace(trc, tmp->array.cursors);
JS_CALL_VALUE_TRACER(trc, tmp->value, "temp_ns_array_value");
}
static void
InitTempNSArray(JSContext *cx, JSTempRootedNSArray *tmp)
{
XMLArrayInit(cx, &tmp->array, 0);
tmp->value = JSVAL_NULL;
JS_PUSH_TEMP_ROOT_TRACE(cx, trace_temp_ns_array, &tmp->tvr);
}
static void
FinishTempNSArray(JSContext *cx, JSTempRootedNSArray *tmp)
{
JS_ASSERT(tmp->tvr.u.trace == trace_temp_ns_array);
JS_POP_TEMP_ROOT(cx, &tmp->tvr);
XMLArrayFinish(cx, &tmp->array);
}
/*
* Populate a new JS array with elements of JSTempRootedNSArray.array and
* place the result into rval. rval must point to a rooted location.
*/
static JSBool
TempNSArrayToJSArray(JSContext *cx, JSTempRootedNSArray *tmp, jsval *rval)
{
JSObject *arrayobj;
uint32 i, n;
JSXMLNamespace *ns;
JSObject *nsobj;
arrayobj = js_NewArrayObject(cx, 0, NULL);
if (!arrayobj)
return JS_FALSE;
*rval = OBJECT_TO_JSVAL(arrayobj);
for (i = 0, n = tmp->array.length; i < n; i++) {
ns = XMLARRAY_MEMBER(&tmp->array, i, JSXMLNamespace);
if (!ns)
continue;
nsobj = js_GetXMLNamespaceObject(cx, ns);
if (!nsobj)
return JS_FALSE;
tmp->value = OBJECT_TO_JSVAL(nsobj);
if (!OBJ_SET_PROPERTY(cx, arrayobj, INT_TO_JSID(i), &tmp->value))
return JS_FALSE;
}
return JS_TRUE;
}
static JSBool
FindInScopeNamespaces(JSContext *cx, JSXML *xml, JSXMLArray *nsarray)
{
uint32 length, i, j, n;
JSXMLNamespace *ns, *ns2;
length = nsarray->length;
do {
if (xml->xml_class != JSXML_CLASS_ELEMENT)
continue;
for (i = 0, n = xml->xml_namespaces.length; i < n; i++) {
ns = XMLARRAY_MEMBER(&xml->xml_namespaces, i, JSXMLNamespace);
if (!ns)
continue;
for (j = 0; j < length; j++) {
ns2 = XMLARRAY_MEMBER(nsarray, j, JSXMLNamespace);
if (ns2 &&
((ns2->prefix && ns->prefix)
? js_EqualStrings(ns2->prefix, ns->prefix)
: js_EqualStrings(ns2->uri, ns->uri))) {
break;
}
}
if (j == length) {
if (!XMLARRAY_APPEND(cx, nsarray, ns))
return JS_FALSE;
++length;
}
}
} while ((xml = xml->parent) != NULL);
JS_ASSERT(length == nsarray->length);
return JS_TRUE;
}
static JSBool
xml_inScopeNamespaces(JSContext *cx, uintN argc, jsval *vp)
{
JSTempRootedNSArray namespaces;
JSBool ok;
NON_LIST_XML_METHOD_PROLOG;
InitTempNSArray(cx, &namespaces);
ok = FindInScopeNamespaces(cx, xml, &namespaces.array) &&
TempNSArrayToJSArray(cx, &namespaces, vp);
FinishTempNSArray(cx, &namespaces);
return ok;
}
static JSBool
xml_insertChildAfter(JSContext *cx, uintN argc, jsval *vp)
{
jsval arg;
JSXML *kid;
uint32 i;
NON_LIST_XML_METHOD_PROLOG;
if (!JSXML_HAS_KIDS(xml))
return JS_TRUE;
arg = vp[2];
if (JSVAL_IS_NULL(arg)) {
kid = NULL;
i = 0;
} else {
if (!VALUE_IS_XML(cx, arg))
return JS_TRUE;
kid = (JSXML *) JS_GetPrivate(cx, JSVAL_TO_OBJECT(arg));
i = XMLARRAY_FIND_MEMBER(&xml->xml_kids, kid, NULL);
if (i == XML_NOT_FOUND)
return JS_TRUE;
++i;
}
xml = CHECK_COPY_ON_WRITE(cx, xml, obj);
if (!xml)
return JS_FALSE;
if (!Insert(cx, xml, i, vp[3]))
return JS_FALSE;
*vp = OBJECT_TO_JSVAL(obj);
return JS_TRUE;
}
static JSBool
xml_insertChildBefore(JSContext *cx, uintN argc, jsval *vp)
{
jsval arg;
JSXML *kid;
uint32 i;
NON_LIST_XML_METHOD_PROLOG;
if (!JSXML_HAS_KIDS(xml))
return JS_TRUE;
arg = vp[2];
if (JSVAL_IS_NULL(arg)) {
kid = NULL;
i = xml->xml_kids.length;
} else {
if (!VALUE_IS_XML(cx, arg))
return JS_TRUE;
kid = (JSXML *) JS_GetPrivate(cx, JSVAL_TO_OBJECT(arg));
i = XMLARRAY_FIND_MEMBER(&xml->xml_kids, kid, NULL);
if (i == XML_NOT_FOUND)
return JS_TRUE;
}
xml = CHECK_COPY_ON_WRITE(cx, xml, obj);
if (!xml)
return JS_FALSE;
if (!Insert(cx, xml, i, vp[3]))
return JS_FALSE;
*vp = OBJECT_TO_JSVAL(obj);
return JS_TRUE;
}
/* XML and XMLList */
static JSBool
xml_length(JSContext *cx, uintN argc, jsval *vp)
{
XML_METHOD_PROLOG;
if (xml->xml_class != JSXML_CLASS_LIST) {
*vp = JSVAL_ONE;
} else {
if (!js_NewNumberValue(cx, xml->xml_kids.length, vp))
return JS_FALSE;
}
return JS_TRUE;
}
static JSBool
xml_localName(JSContext *cx, uintN argc, jsval *vp)
{
NON_LIST_XML_METHOD_PROLOG;
*vp = xml->name ? STRING_TO_JSVAL(xml->name->localName) : JSVAL_NULL;
return JS_TRUE;
}
static JSBool
xml_name(JSContext *cx, uintN argc, jsval *vp)
{
JSObject *nameobj;
NON_LIST_XML_METHOD_PROLOG;
if (!xml->name) {
*vp = JSVAL_NULL;
} else {
nameobj = js_GetXMLQNameObject(cx, xml->name);
if (!nameobj)
return JS_FALSE;
*vp = OBJECT_TO_JSVAL(nameobj);
}
return JS_TRUE;
}
static JSBool
xml_namespace(JSContext *cx, uintN argc, jsval *vp)
{
JSString *prefix;
JSTempRootedNSArray inScopeNSes;
JSBool ok;
jsuint i, length;
JSXMLNamespace *ns;
JSObject *nsobj;
NON_LIST_XML_METHOD_PROLOG;
if (argc == 0 && !JSXML_HAS_NAME(xml)) {
*vp = JSVAL_NULL;
return JS_TRUE;
}
if (argc == 0) {
prefix = NULL;
} else {
prefix = js_ValueToString(cx, vp[2]);
if (!prefix)
return JS_FALSE;
vp[2] = STRING_TO_JSVAL(prefix); /* local root */
}
/* After this point the control must flow through label out. */
InitTempNSArray(cx, &inScopeNSes);
ok = FindInScopeNamespaces(cx, xml, &inScopeNSes.array);
if (!ok)
goto out;
if (!prefix) {
ns = GetNamespace(cx, xml->name, &inScopeNSes.array);
if (!ns) {
ok = JS_FALSE;
goto out;
}
} else {
ns = NULL;
for (i = 0, length = inScopeNSes.array.length; i < length; i++) {
ns = XMLARRAY_MEMBER(&inScopeNSes.array, i, JSXMLNamespace);
if (ns && ns->prefix && js_EqualStrings(ns->prefix, prefix))
break;
ns = NULL;
}
}
if (!ns) {
*vp = JSVAL_VOID;
} else {
nsobj = js_GetXMLNamespaceObject(cx, ns);
if (!nsobj) {
ok = JS_FALSE;
goto out;
}
*vp = OBJECT_TO_JSVAL(nsobj);
}
out:
FinishTempNSArray(cx, &inScopeNSes);
return JS_TRUE;
}
static JSBool
xml_namespaceDeclarations(JSContext *cx, uintN argc, jsval *vp)
{
JSBool ok;
JSTempRootedNSArray ancestors, declared;
JSXML *yml;
uint32 i, n;
JSXMLNamespace *ns;
NON_LIST_XML_METHOD_PROLOG;
if (JSXML_HAS_VALUE(xml))
return JS_TRUE;
/* From here, control flow must goto out to finish these arrays. */
ok = JS_TRUE;
InitTempNSArray(cx, &ancestors);
InitTempNSArray(cx, &declared);
yml = xml;
while ((yml = yml->parent) != NULL) {
JS_ASSERT(yml->xml_class == JSXML_CLASS_ELEMENT);
for (i = 0, n = yml->xml_namespaces.length; i < n; i++) {
ns = XMLARRAY_MEMBER(&yml->xml_namespaces, i, JSXMLNamespace);
if (ns &&
!XMLARRAY_HAS_MEMBER(&ancestors.array, ns, namespace_match)) {
ok = XMLARRAY_APPEND(cx, &ancestors.array, ns);
if (!ok)
goto out;
}
}
}
for (i = 0, n = xml->xml_namespaces.length; i < n; i++) {
ns = XMLARRAY_MEMBER(&xml->xml_namespaces, i, JSXMLNamespace);
if (!ns)
continue;
if (!ns->declared)
continue;
if (!XMLARRAY_HAS_MEMBER(&ancestors.array, ns, namespace_match)) {
ok = XMLARRAY_APPEND(cx, &declared.array, ns);
if (!ok)
goto out;
}
}
ok = TempNSArrayToJSArray(cx, &declared, vp);
out:
/* Finishing must be in reverse order of initialization to follow LIFO. */
FinishTempNSArray(cx, &declared);
FinishTempNSArray(cx, &ancestors);
return ok;
}
static const char js_attribute_str[] = "attribute";
static const char js_text_str[] = "text";
/* Exported to jsgc.c #ifdef DEBUG. */
const char *js_xml_class_str[] = {
"list",
"element",
js_attribute_str,
"processing-instruction",
js_text_str,
"comment"
};
static JSBool
xml_nodeKind(JSContext *cx, uintN argc, jsval *vp)
{
JSString *str;
NON_LIST_XML_METHOD_PROLOG;
str = JS_InternString(cx, js_xml_class_str[xml->xml_class]);
if (!str)
return JS_FALSE;
*vp = STRING_TO_JSVAL(str);
return JS_TRUE;
}
static void
NormalizingDelete(JSContext *cx, JSXML *xml, uint32 index)
{
if (xml->xml_class == JSXML_CLASS_LIST)
DeleteListElement(cx, xml, index);
else
DeleteByIndex(cx, xml, index);
}
/* XML and XMLList */
static JSBool
xml_normalize_helper(JSContext *cx, JSObject *obj, JSXML *xml)
{
JSXML *kid, *kid2;
uint32 i, n;
JSObject *kidobj;
JSString *str;
if (!JSXML_HAS_KIDS(xml))
return JS_TRUE;
xml = CHECK_COPY_ON_WRITE(cx, xml, obj);
if (!xml)
return JS_FALSE;
for (i = 0, n = xml->xml_kids.length; i < n; i++) {
kid = XMLARRAY_MEMBER(&xml->xml_kids, i, JSXML);
if (!kid)
continue;
if (kid->xml_class == JSXML_CLASS_ELEMENT) {
kidobj = js_GetXMLObject(cx, kid);
if (!kidobj || !xml_normalize_helper(cx, kidobj, kid))
return JS_FALSE;
} else if (kid->xml_class == JSXML_CLASS_TEXT) {
while (i + 1 < n &&
(kid2 = XMLARRAY_MEMBER(&xml->xml_kids, i + 1, JSXML)) &&
kid2->xml_class == JSXML_CLASS_TEXT) {
str = js_ConcatStrings(cx, kid->xml_value, kid2->xml_value);
if (!str)
return JS_FALSE;
NormalizingDelete(cx, xml, i + 1);
n = xml->xml_kids.length;
kid->xml_value = str;
}
if (IS_EMPTY(kid->xml_value)) {
NormalizingDelete(cx, xml, i);
n = xml->xml_kids.length;
--i;
}
}
}
return JS_TRUE;
}
static JSBool
xml_normalize(JSContext *cx, uintN argc, jsval *vp)
{
XML_METHOD_PROLOG;
*vp = OBJECT_TO_JSVAL(obj);
return xml_normalize_helper(cx, obj, xml);
}
/* XML and XMLList */
static JSBool
xml_parent(JSContext *cx, uintN argc, jsval *vp)
{
JSXML *parent, *kid;
uint32 i, n;
JSObject *parentobj;
XML_METHOD_PROLOG;
parent = xml->parent;
if (xml->xml_class == JSXML_CLASS_LIST) {
*vp = JSVAL_VOID;
n = xml->xml_kids.length;
if (n == 0)
return JS_TRUE;
kid = XMLARRAY_MEMBER(&xml->xml_kids, 0, JSXML);
if (!kid)
return JS_TRUE;
parent = kid->parent;
for (i = 1; i < n; i++) {
kid = XMLARRAY_MEMBER(&xml->xml_kids, i, JSXML);
if (kid && kid->parent != parent)
return JS_TRUE;
}
}
if (!parent) {
*vp = JSVAL_NULL;
return JS_TRUE;
}
parentobj = js_GetXMLObject(cx, parent);
if (!parentobj)
return JS_FALSE;
*vp = OBJECT_TO_JSVAL(parentobj);
return JS_TRUE;
}
/* XML and XMLList */
static JSBool
xml_processingInstructions_helper(JSContext *cx, JSObject *obj, JSXML *xml,
JSXMLQName *nameqn, jsval *vp)
{
JSXML *list, *kid, *vxml;
JSBool ok;
JSXMLArrayCursor cursor;
JSObject *kidobj;
jsval v;
uint32 i, n;
list = xml_list_helper(cx, xml, vp);
if (!list)
return JS_FALSE;
list->xml_targetprop = nameqn;
ok = JS_TRUE;
if (xml->xml_class == JSXML_CLASS_LIST) {
/* 13.5.4.17 Step 4 (misnumbered 9 -- Erratum?). */
XMLArrayCursorInit(&cursor, &xml->xml_kids);
while ((kid = (JSXML *) XMLArrayCursorNext(&cursor)) != NULL) {
if (kid->xml_class == JSXML_CLASS_ELEMENT) {
ok = js_EnterLocalRootScope(cx);
if (!ok)
break;
kidobj = js_GetXMLObject(cx, kid);
if (kidobj) {
ok = xml_processingInstructions_helper(cx, kidobj, kid,
nameqn, &v);
} else {
ok = JS_FALSE;
v = JSVAL_NULL;
}
js_LeaveLocalRootScopeWithResult(cx, v);
if (!ok)
break;
vxml = (JSXML *) JS_GetPrivate(cx, JSVAL_TO_OBJECT(v));
if (JSXML_LENGTH(vxml) != 0) {
ok = Append(cx, list, vxml);
if (!ok)
break;
}
}
}
XMLArrayCursorFinish(&cursor);
} else {
/* 13.4.4.28 Step 4. */
for (i = 0, n = JSXML_LENGTH(xml); i < n; i++) {
kid = XMLARRAY_MEMBER(&xml->xml_kids, i, JSXML);
if (kid && kid->xml_class == JSXML_CLASS_PROCESSING_INSTRUCTION &&
(IS_STAR(nameqn->localName) ||
js_EqualStrings(nameqn->localName, kid->name->localName))) {
ok = Append(cx, list, kid);
if (!ok)
break;
}
}
}
return ok;
}
static JSBool
xml_processingInstructions(JSContext *cx, uintN argc, jsval *vp)
{
jsval name;
JSXMLQName *nameqn;
jsid funid;
XML_METHOD_PROLOG;
name = (argc == 0) ? ATOM_KEY(cx->runtime->atomState.starAtom) : vp[2];
nameqn = ToXMLName(cx, name, &funid);
if (!nameqn)
return JS_FALSE;
vp[2] = OBJECT_TO_JSVAL(nameqn->object);
if (funid)
return xml_list_helper(cx, xml, vp) != NULL;
return xml_processingInstructions_helper(cx, obj, xml, nameqn, vp);
}
static JSBool
xml_prependChild(JSContext *cx, uintN argc, jsval *vp)
{
NON_LIST_XML_METHOD_PROLOG;
xml = CHECK_COPY_ON_WRITE(cx, xml, obj);
if (!xml)
return JS_FALSE;
*vp = OBJECT_TO_JSVAL(obj);
return Insert(cx, xml, 0, vp[2]);
}
/* XML and XMLList */
static JSBool
xml_propertyIsEnumerable(JSContext *cx, uintN argc, jsval *vp)
{
jsval name;
uint32 index;
XML_METHOD_PROLOG;
name = vp[2];
*vp = JSVAL_FALSE;
if (js_IdIsIndex(name, &index)) {
if (xml->xml_class == JSXML_CLASS_LIST) {
/* 13.5.4.18. */
*vp = BOOLEAN_TO_JSVAL(index < xml->xml_kids.length);
} else {
/* 13.4.4.30. */
*vp = BOOLEAN_TO_JSVAL(index == 0);
}
}
return JS_TRUE;
}
static JSBool
namespace_full_match(const void *a, const void *b)
{
const JSXMLNamespace *nsa = (const JSXMLNamespace *) a;
const JSXMLNamespace *nsb = (const JSXMLNamespace *) b;
if (nsa->prefix && nsb->prefix &&
!js_EqualStrings(nsa->prefix, nsb->prefix)) {
return JS_FALSE;
}
return js_EqualStrings(nsa->uri, nsb->uri);
}
static JSBool
xml_removeNamespace_helper(JSContext *cx, JSXML *xml, JSXMLNamespace *ns)
{
JSXMLNamespace *thisns, *attrns;
uint32 i, n;
JSXML *attr, *kid;
thisns = GetNamespace(cx, xml->name, &xml->xml_namespaces);
JS_ASSERT(thisns);
if (thisns == ns)
return JS_TRUE;
for (i = 0, n = xml->xml_attrs.length; i < n; i++) {
attr = XMLARRAY_MEMBER(&xml->xml_attrs, i, JSXML);
if (!attr)
continue;
attrns = GetNamespace(cx, attr->name, &xml->xml_namespaces);
JS_ASSERT(attrns);
if (attrns == ns)
return JS_TRUE;
}
i = XMLARRAY_FIND_MEMBER(&xml->xml_namespaces, ns, namespace_full_match);
if (i != XML_NOT_FOUND)
XMLArrayDelete(cx, &xml->xml_namespaces, i, JS_TRUE);
for (i = 0, n = xml->xml_kids.length; i < n; i++) {
kid = XMLARRAY_MEMBER(&xml->xml_kids, i, JSXML);
if (kid && kid->xml_class == JSXML_CLASS_ELEMENT) {
if (!xml_removeNamespace_helper(cx, kid, ns))
return JS_FALSE;
}
}
return JS_TRUE;
}
static JSBool
xml_removeNamespace(JSContext *cx, uintN argc, jsval *vp)
{
JSObject *nsobj;
JSXMLNamespace *ns;
NON_LIST_XML_METHOD_PROLOG;
*vp = OBJECT_TO_JSVAL(obj);
if (xml->xml_class != JSXML_CLASS_ELEMENT)
return JS_TRUE;
xml = CHECK_COPY_ON_WRITE(cx, xml, obj);
if (!xml)
return JS_FALSE;
nsobj = CallConstructorFunction(cx, obj, &js_NamespaceClass.base, 1, vp + 2);
if (!nsobj)
return JS_FALSE;
vp[2] = OBJECT_TO_JSVAL(nsobj);
ns = (JSXMLNamespace *) JS_GetPrivate(cx, nsobj);
/* NOTE: remove ns from each ancestor if not used by that ancestor. */
return xml_removeNamespace_helper(cx, xml, ns);
}
static JSBool
xml_replace(JSContext *cx, uintN argc, jsval *vp)
{
jsval name, value;
JSXML *vxml, *kid;
uint32 index, matchIndex;
JSObject *nameobj;
JSXMLQName *nameqn;
NON_LIST_XML_METHOD_PROLOG;
*vp = OBJECT_TO_JSVAL(obj);
if (xml->xml_class != JSXML_CLASS_ELEMENT)
return JS_TRUE;
value = vp[3];
vxml = VALUE_IS_XML(cx, value)
? (JSXML *) JS_GetPrivate(cx, JSVAL_TO_OBJECT(value))
: NULL;
if (!vxml) {
if (!JS_ConvertValue(cx, value, JSTYPE_STRING, &vp[3]))
return JS_FALSE;
value = vp[3];
} else {
vxml = DeepCopy(cx, vxml, NULL, 0);
if (!vxml)
return JS_FALSE;
value = vp[3] = OBJECT_TO_JSVAL(vxml->object);
}
xml = CHECK_COPY_ON_WRITE(cx, xml, obj);
if (!xml)
return JS_FALSE;
name = vp[2];
if (js_IdIsIndex(name, &index))
return Replace(cx, xml, index, value);
/* Call function QName per spec, not ToXMLName, to avoid attribute names. */
nameobj = CallConstructorFunction(cx, obj, &js_QNameClass.base, 1, &name);
if (!nameobj)
return JS_FALSE;
vp[2] = OBJECT_TO_JSVAL(nameobj);
nameqn = (JSXMLQName *) JS_GetPrivate(cx, nameobj);
index = xml->xml_kids.length;
matchIndex = XML_NOT_FOUND;
while (index != 0) {
--index;
kid = XMLARRAY_MEMBER(&xml->xml_kids, index, JSXML);
if (kid && MatchElemName(nameqn, kid)) {
if (matchIndex != XML_NOT_FOUND)
DeleteByIndex(cx, xml, matchIndex);
matchIndex = index;
}
}
return matchIndex == XML_NOT_FOUND || Replace(cx, xml, matchIndex, value);
}
static JSBool
xml_setChildren(JSContext *cx, uintN argc, jsval *vp)
{
JSObject *obj;
if (!StartNonListXMLMethod(cx, vp, &obj))
return JS_FALSE;
if (!PutProperty(cx, obj, ATOM_KEY(cx->runtime->atomState.starAtom),
&vp[2])) {
return JS_FALSE;
}
*vp = OBJECT_TO_JSVAL(obj);
return JS_TRUE;
}
static JSBool
xml_setLocalName(JSContext *cx, uintN argc, jsval *vp)
{
jsval name;
JSXMLQName *nameqn;
JSString *namestr;
NON_LIST_XML_METHOD_PROLOG;
if (!JSXML_HAS_NAME(xml))
return JS_TRUE;
name = vp[2];
if (!JSVAL_IS_PRIMITIVE(name) &&
OBJ_GET_CLASS(cx, JSVAL_TO_OBJECT(name)) == &js_QNameClass.base) {
nameqn = (JSXMLQName *) JS_GetPrivate(cx, JSVAL_TO_OBJECT(name));
namestr = nameqn->localName;
} else {
if (!JS_ConvertValue(cx, name, JSTYPE_STRING, &vp[2]))
return JS_FALSE;
name = vp[2];
namestr = JSVAL_TO_STRING(name);
}
xml = CHECK_COPY_ON_WRITE(cx, xml, obj);
if (!xml)
return JS_FALSE;
xml->name->localName = namestr;
return JS_TRUE;
}
static JSBool
xml_setName(JSContext *cx, uintN argc, jsval *vp)
{
jsval name;
JSXMLQName *nameqn;
JSObject *nameobj;
JSXML *nsowner;
JSXMLArray *nsarray;
uint32 i, n;
JSXMLNamespace *ns;
NON_LIST_XML_METHOD_PROLOG;
if (!JSXML_HAS_NAME(xml))
return JS_TRUE;
name = vp[2];
if (!JSVAL_IS_PRIMITIVE(name) &&
OBJ_GET_CLASS(cx, JSVAL_TO_OBJECT(name)) == &js_QNameClass.base &&
!(nameqn = (JSXMLQName *) JS_GetPrivate(cx, JSVAL_TO_OBJECT(name)))
->uri) {
name = vp[2] = STRING_TO_JSVAL(nameqn->localName);
}
nameobj = js_ConstructObject(cx, &js_QNameClass.base, NULL, NULL, 1, &name);
if (!nameobj)
return JS_FALSE;
nameqn = (JSXMLQName *) JS_GetPrivate(cx, nameobj);
/* ECMA-357 13.4.4.35 Step 4. */
if (xml->xml_class == JSXML_CLASS_PROCESSING_INSTRUCTION)
nameqn->uri = cx->runtime->emptyString;
xml = CHECK_COPY_ON_WRITE(cx, xml, obj);
if (!xml)
return JS_FALSE;
xml->name = nameqn;
/*
* Erratum: nothing in 13.4.4.35 talks about making the name match the
* in-scope namespaces, either by finding an in-scope namespace with a
* matching uri and setting the new name's prefix to that namespace's
* prefix, or by extending the in-scope namespaces for xml (which are in
* xml->parent if xml is an attribute or a PI).
*/
if (xml->xml_class == JSXML_CLASS_ELEMENT) {
nsowner = xml;
} else {
if (!xml->parent || xml->parent->xml_class != JSXML_CLASS_ELEMENT)
return JS_TRUE;
nsowner = xml->parent;
}
if (nameqn->prefix) {
/*
* The name being set has a prefix, which originally came from some
* namespace object (which may be the null namespace, where both the
* prefix and uri are the empty string). We must go through a full
* GetNamespace in case that namespace is in-scope in nsowner.
*
* If we find such an in-scope namespace, we return true right away,
* in this block. Otherwise, we fall through to the final return of
* AddInScopeNamespace(cx, nsowner, ns).
*/
ns = GetNamespace(cx, nameqn, &nsowner->xml_namespaces);
if (!ns)
return JS_FALSE;
/* XXXbe have to test membership to see whether GetNamespace added */
if (XMLARRAY_HAS_MEMBER(&nsowner->xml_namespaces, ns, NULL))
return JS_TRUE;
} else {
/*
* At this point, we know nameqn->prefix is null, so nameqn->uri can't
* be the empty string (the null namespace always uses the empty string
* for both prefix and uri).
*
* This means we must inline GetNamespace and specialize it to match
* uri only, never prefix. If we find a namespace with nameqn's uri
* already in nsowner->xml_namespaces, then all that we need do is set
* nameqn->prefix to that namespace's prefix.
*
* If no such namespace exists, we can create one without going through
* the constructor, because we know nameqn->uri is non-empty (so prefix
* does not need to be converted from null to empty by QName).
*/
JS_ASSERT(!IS_EMPTY(nameqn->uri));
nsarray = &nsowner->xml_namespaces;
for (i = 0, n = nsarray->length; i < n; i++) {
ns = XMLARRAY_MEMBER(nsarray, i, JSXMLNamespace);
if (ns && js_EqualStrings(ns->uri, nameqn->uri)) {
nameqn->prefix = ns->prefix;
return JS_TRUE;
}
}
ns = js_NewXMLNamespace(cx, NULL, nameqn->uri, JS_TRUE);
if (!ns)
return JS_FALSE;
}
return AddInScopeNamespace(cx, nsowner, ns);
}
static JSBool
xml_setNamespace(JSContext *cx, uintN argc, jsval *vp)
{
JSObject *nsobj, *qnobj;
JSXMLNamespace *ns;
jsval qnargv[2];
JSXML *nsowner;
NON_LIST_XML_METHOD_PROLOG;
if (!JSXML_HAS_NAME(xml))
return JS_TRUE;
xml = CHECK_COPY_ON_WRITE(cx, xml, obj);
if (!xml || !js_GetXMLQNameObject(cx, xml->name))
return JS_FALSE;
nsobj = js_ConstructObject(cx, &js_NamespaceClass.base, NULL, obj, 1,
vp + 2);
if (!nsobj)
return JS_FALSE;
ns = (JSXMLNamespace *) JS_GetPrivate(cx, nsobj);
ns->declared = JS_TRUE;
qnargv[0] = vp[2] = OBJECT_TO_JSVAL(nsobj);
qnargv[1] = OBJECT_TO_JSVAL(xml->name->object);
qnobj = js_ConstructObject(cx, &js_QNameClass.base, NULL, NULL, 2, qnargv);
if (!qnobj)
return JS_FALSE;
xml->name = (JSXMLQName *) JS_GetPrivate(cx, qnobj);
/*
* Erratum: the spec fails to update the governing in-scope namespaces.
* See the erratum noted in xml_setName, above.
*/
if (xml->xml_class == JSXML_CLASS_ELEMENT) {
nsowner = xml;
} else {
if (!xml->parent || xml->parent->xml_class != JSXML_CLASS_ELEMENT)
return JS_TRUE;
nsowner = xml->parent;
}
return AddInScopeNamespace(cx, nsowner, ns);
}
/* XML and XMLList */
static JSBool
xml_text_helper(JSContext *cx, JSObject *obj, JSXML *xml, jsval *vp)
{
JSXML *list, *kid, *vxml;
uint32 i, n;
JSBool ok;
JSObject *kidobj;
jsval v;
list = xml_list_helper(cx, xml, vp);
if (!list)
return JS_FALSE;
if (xml->xml_class == JSXML_CLASS_LIST) {
ok = JS_TRUE;
for (i = 0, n = xml->xml_kids.length; i < n; i++) {
kid = XMLARRAY_MEMBER(&xml->xml_kids, i, JSXML);
if (kid && kid->xml_class == JSXML_CLASS_ELEMENT) {
ok = js_EnterLocalRootScope(cx);
if (!ok)
break;
kidobj = js_GetXMLObject(cx, kid);
if (kidobj) {
ok = xml_text_helper(cx, kidobj, kid, &v);
} else {
ok = JS_FALSE;
v = JSVAL_NULL;
}
js_LeaveLocalRootScopeWithResult(cx, v);
if (!ok)
return JS_FALSE;
vxml = (JSXML *) JS_GetPrivate(cx, JSVAL_TO_OBJECT(v));
if (JSXML_LENGTH(vxml) != 0 && !Append(cx, list, vxml))
return JS_FALSE;
}
}
} else {
for (i = 0, n = JSXML_LENGTH(xml); i < n; i++) {
kid = XMLARRAY_MEMBER(&xml->xml_kids, i, JSXML);
if (kid && kid->xml_class == JSXML_CLASS_TEXT) {
if (!Append(cx, list, kid))
return JS_FALSE;
}
}
}
return JS_TRUE;
}
static JSBool
xml_text(JSContext *cx, uintN argc, jsval *vp)
{
XML_METHOD_PROLOG;
return xml_text_helper(cx, obj, xml, vp);
}
/* XML and XMLList */
static JSString *
xml_toString_helper(JSContext *cx, JSXML *xml)
{
JSString *str, *kidstr;
JSXML *kid;
JSXMLArrayCursor cursor;
if (xml->xml_class == JSXML_CLASS_ATTRIBUTE ||
xml->xml_class == JSXML_CLASS_TEXT) {
return xml->xml_value;
}
if (!HasSimpleContent(xml))
return ToXMLString(cx, OBJECT_TO_JSVAL(xml->object));
str = cx->runtime->emptyString;
if (!js_EnterLocalRootScope(cx))
return NULL;
XMLArrayCursorInit(&cursor, &xml->xml_kids);
while ((kid = (JSXML *) XMLArrayCursorNext(&cursor)) != NULL) {
if (kid->xml_class != JSXML_CLASS_COMMENT &&
kid->xml_class != JSXML_CLASS_PROCESSING_INSTRUCTION) {
kidstr = xml_toString_helper(cx, kid);
if (!kidstr) {
str = NULL;
break;
}
str = js_ConcatStrings(cx, str, kidstr);
if (!str)
break;
}
}
XMLArrayCursorFinish(&cursor);
js_LeaveLocalRootScopeWithResult(cx, STRING_TO_JSVAL(str));
return str;
}
static JSBool
xml_toString(JSContext *cx, uintN argc, jsval *vp)
{
JSString *str;
XML_METHOD_PROLOG;
str = xml_toString_helper(cx, xml);
if (!str)
return JS_FALSE;
*vp = STRING_TO_JSVAL(str);
return JS_TRUE;
}
/* XML and XMLList */
static JSBool
xml_toXMLString(JSContext *cx, uintN argc, jsval *vp)
{
JSString *str;
str = ToXMLString(cx, vp[1]);
if (!str)
return JS_FALSE;
*vp = STRING_TO_JSVAL(str);
return JS_TRUE;
}
/* XML and XMLList */
static JSBool
xml_valueOf(JSContext *cx, uintN argc, jsval *vp)
{
*vp = vp[1];
return JS_TRUE;
}
static JSFunctionSpec xml_methods[] = {
JS_FN("addNamespace", xml_addNamespace, 1,1,0),
JS_FN("appendChild", xml_appendChild, 1,1,0),
JS_FN(js_attribute_str, xml_attribute, 1,1,0),
JS_FN("attributes", xml_attributes, 0,0,0),
JS_FN("child", xml_child, 1,1,0),
JS_FN("childIndex", xml_childIndex, 0,0,0),
JS_FN("children", xml_children, 0,0,0),
JS_FN("comments", xml_comments, 0,0,0),
JS_FN("contains", xml_contains, 1,1,0),
JS_FN("copy", xml_copy, 0,0,0),
JS_FN("descendants", xml_descendants, 0,1,0),
JS_FN("elements", xml_elements, 0,1,0),
JS_FN("hasOwnProperty", xml_hasOwnProperty, 1,1,0),
JS_FN("hasComplexContent", xml_hasComplexContent, 1,1,0),
JS_FN("hasSimpleContent", xml_hasSimpleContent, 1,1,0),
JS_FN("inScopeNamespaces", xml_inScopeNamespaces, 0,0,0),
JS_FN("insertChildAfter", xml_insertChildAfter, 2,2,0),
JS_FN("insertChildBefore", xml_insertChildBefore, 2,2,0),
JS_FN(js_length_str, xml_length, 0,0,0),
JS_FN(js_localName_str, xml_localName, 0,0,0),
JS_FN(js_name_str, xml_name, 0,0,0),
JS_FN(js_namespace_str, xml_namespace, 0,1,0),
JS_FN("namespaceDeclarations", xml_namespaceDeclarations, 0,0,0),
JS_FN("nodeKind", xml_nodeKind, 0,0,0),
JS_FN("normalize", xml_normalize, 0,0,0),
JS_FN(js_xml_parent_str, xml_parent, 0,0,0),
JS_FN("processingInstructions",xml_processingInstructions,0,1,0),
JS_FN("prependChild", xml_prependChild, 1,1,0),
JS_FN("propertyIsEnumerable", xml_propertyIsEnumerable, 1,1,0),
JS_FN("removeNamespace", xml_removeNamespace, 1,1,0),
JS_FN("replace", xml_replace, 2,2,0),
JS_FN("setChildren", xml_setChildren, 1,1,0),
JS_FN("setLocalName", xml_setLocalName, 1,1,0),
JS_FN("setName", xml_setName, 1,1,0),
JS_FN("setNamespace", xml_setNamespace, 1,1,0),
JS_FN(js_text_str, xml_text, 0,0,0),
JS_FN(js_toString_str, xml_toString, 0,0,0),
JS_FN(js_toXMLString_str, xml_toXMLString, 0,0,0),
JS_FN(js_toSource_str, xml_toXMLString, 0,0,0),
JS_FN(js_valueOf_str, xml_valueOf, 0,0,0),
JS_FS_END
};
static JSBool
CopyXMLSettings(JSContext *cx, JSObject *from, JSObject *to)
{
int i;
const char *name;
jsval v;
for (i = XML_IGNORE_COMMENTS; i < XML_PRETTY_INDENT; i++) {
name = xml_static_props[i].name;
if (!JS_GetProperty(cx, from, name, &v))
return JS_FALSE;
if (JSVAL_IS_BOOLEAN(v) && !JS_SetProperty(cx, to, name, &v))
return JS_FALSE;
}
name = xml_static_props[i].name;
if (!JS_GetProperty(cx, from, name, &v))
return JS_FALSE;
if (JSVAL_IS_NUMBER(v) && !JS_SetProperty(cx, to, name, &v))
return JS_FALSE;
return JS_TRUE;
}
static JSBool
SetDefaultXMLSettings(JSContext *cx, JSObject *obj)
{
int i;
jsval v;
for (i = XML_IGNORE_COMMENTS; i < XML_PRETTY_INDENT; i++) {
v = JSVAL_TRUE;
if (!JS_SetProperty(cx, obj, xml_static_props[i].name, &v))
return JS_FALSE;
}
v = INT_TO_JSVAL(2);
return JS_SetProperty(cx, obj, xml_static_props[i].name, &v);
}
static JSBool
xml_settings(JSContext *cx, uintN argc, jsval *vp)
{
JSObject *settings;
settings = JS_NewObject(cx, NULL, NULL, NULL);
if (!settings)
return JS_FALSE;
*vp = OBJECT_TO_JSVAL(settings);
return CopyXMLSettings(cx, JS_THIS_OBJECT(cx, vp), settings);
}
static JSBool
xml_setSettings(JSContext *cx, uintN argc, jsval *vp)
{
JSObject *obj, *settings;
jsval v;
JSBool ok;
obj = JS_THIS_OBJECT(cx, vp);
v = vp[2];
if (JSVAL_IS_NULL(v) || JSVAL_IS_VOID(v)) {
cx->xmlSettingFlags = 0;
ok = SetDefaultXMLSettings(cx, obj);
} else {
if (JSVAL_IS_PRIMITIVE(v))
return JS_TRUE;
settings = JSVAL_TO_OBJECT(v);
cx->xmlSettingFlags = 0;
ok = CopyXMLSettings(cx, settings, obj);
}
if (ok)
cx->xmlSettingFlags |= XSF_CACHE_VALID;
return ok;
}
static JSBool
xml_defaultSettings(JSContext *cx, uintN argc, jsval *vp)
{
JSObject *settings;
settings = JS_NewObject(cx, NULL, NULL, NULL);
if (!settings)
return JS_FALSE;
*vp = OBJECT_TO_JSVAL(settings);
return SetDefaultXMLSettings(cx, settings);
}
static JSFunctionSpec xml_static_methods[] = {
JS_FN("settings", xml_settings, 0,0,0),
JS_FN("setSettings", xml_setSettings, 1,1,0),
JS_FN("defaultSettings", xml_defaultSettings, 0,0,0),
JS_FS_END
};
static JSBool
XML(JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval)
{
jsval v;
JSXML *xml, *copy;
JSObject *xobj, *vobj;
JSClass *clasp;
v = argv[0];
if (JSVAL_IS_NULL(v) || JSVAL_IS_VOID(v))
v = STRING_TO_JSVAL(cx->runtime->emptyString);
xobj = ToXML(cx, v);
if (!xobj)
return JS_FALSE;
*rval = OBJECT_TO_JSVAL(xobj);
xml = (JSXML *) JS_GetPrivate(cx, xobj);
if ((cx->fp->flags & JSFRAME_CONSTRUCTING) && !JSVAL_IS_PRIMITIVE(v)) {
vobj = JSVAL_TO_OBJECT(v);
clasp = OBJ_GET_CLASS(cx, vobj);
if (clasp == &js_XMLClass ||
(clasp->flags & JSCLASS_DOCUMENT_OBSERVER)) {
/* No need to lock obj, it's newly constructed and thread local. */
copy = DeepCopy(cx, xml, obj, 0);
if (!copy)
return JS_FALSE;
JS_ASSERT(copy->object == obj);
*rval = OBJECT_TO_JSVAL(obj);
return JS_TRUE;
}
}
return JS_TRUE;
}
static JSBool
XMLList(JSContext *cx, JSObject *obj, uintN argc, jsval *argv, jsval *rval)
{
jsval v;
JSObject *vobj, *listobj;
JSXML *xml, *list;
v = argv[0];
if (JSVAL_IS_NULL(v) || JSVAL_IS_VOID(v))
v = STRING_TO_JSVAL(cx->runtime->emptyString);
if ((cx->fp->flags & JSFRAME_CONSTRUCTING) && !JSVAL_IS_PRIMITIVE(v)) {
vobj = JSVAL_TO_OBJECT(v);
if (OBJECT_IS_XML(cx, vobj)) {
xml = (JSXML *) JS_GetPrivate(cx, vobj);
if (xml->xml_class == JSXML_CLASS_LIST) {
listobj = js_NewXMLObject(cx, JSXML_CLASS_LIST);
if (!listobj)
return JS_FALSE;
*rval = OBJECT_TO_JSVAL(listobj);
list = (JSXML *) JS_GetPrivate(cx, listobj);
if (!Append(cx, list, xml))
return JS_FALSE;
return JS_TRUE;
}
}
}
/* Toggle on XML support since the script has explicitly requested it. */
listobj = ToXMLList(cx, v);
if (!listobj)
return JS_FALSE;
*rval = OBJECT_TO_JSVAL(listobj);
return JS_TRUE;
}
#define JSXML_LIST_SIZE (offsetof(JSXML, u) + sizeof(struct JSXMLListVar))
#define JSXML_ELEMENT_SIZE (offsetof(JSXML, u) + sizeof(struct JSXMLElemVar))
#define JSXML_LEAF_SIZE (offsetof(JSXML, u) + sizeof(JSString *))
static size_t sizeof_JSXML[JSXML_CLASS_LIMIT] = {
JSXML_LIST_SIZE, /* JSXML_CLASS_LIST */
JSXML_ELEMENT_SIZE, /* JSXML_CLASS_ELEMENT */
JSXML_LEAF_SIZE, /* JSXML_CLASS_ATTRIBUTE */
JSXML_LEAF_SIZE, /* JSXML_CLASS_PROCESSING_INSTRUCTION */
JSXML_LEAF_SIZE, /* JSXML_CLASS_TEXT */
JSXML_LEAF_SIZE /* JSXML_CLASS_COMMENT */
};
#ifdef DEBUG_notme
JSCList xml_leaks = JS_INIT_STATIC_CLIST(&xml_leaks);
uint32 xml_serial;
#endif
JSXML *
js_NewXML(JSContext *cx, JSXMLClass xml_class)
{
JSXML *xml;
xml = (JSXML *) js_NewGCThing(cx, GCX_XML, sizeof_JSXML[xml_class]);
if (!xml)
return NULL;
xml->object = NULL;
xml->domnode = NULL;
xml->parent = NULL;
xml->name = NULL;
xml->xml_class = xml_class;
xml->xml_flags = 0;
if (JSXML_CLASS_HAS_VALUE(xml_class)) {
xml->xml_value = cx->runtime->emptyString;
} else {
XMLArrayInit(cx, &xml->xml_kids, 0);
if (xml_class == JSXML_CLASS_LIST) {
xml->xml_target = NULL;
xml->xml_targetprop = NULL;
} else {
XMLArrayInit(cx, &xml->xml_namespaces, 0);
XMLArrayInit(cx, &xml->xml_attrs, 0);
}
}
#ifdef DEBUG_notme
JS_APPEND_LINK(&xml->links, &xml_leaks);
xml->serial = xml_serial++;
#endif
METER(xml_stats.xml);
METER(xml_stats.livexml);
return xml;
}
void
js_TraceXML(JSTracer *trc, JSXML *xml)
{
if (xml->object)
JS_CALL_OBJECT_TRACER(trc, xml->object, "object");
if (xml->name)
JS_CALL_TRACER(trc, xml->name, JSTRACE_QNAME, "name");
if (xml->parent)
JS_CALL_TRACER(trc, xml->parent, JSTRACE_XML, "xml_parent");
if (JSXML_HAS_VALUE(xml)) {
if (xml->xml_value)
JS_CALL_STRING_TRACER(trc, xml->xml_value, "value");
return;
}
xml_trace_vector(trc,
(JSXML **) xml->xml_kids.vector,
xml->xml_kids.length);
XMLArrayCursorTrace(trc, xml->xml_kids.cursors);
if (IS_GC_MARKING_TRACER(trc))
XMLArrayTrim(&xml->xml_kids);
if (xml->xml_class == JSXML_CLASS_LIST) {
if (xml->xml_target)
JS_CALL_TRACER(trc, xml->xml_target, JSTRACE_XML, "target");
if (xml->xml_targetprop) {
JS_CALL_TRACER(trc, xml->xml_targetprop, JSTRACE_QNAME,
"targetprop");
}
} else {
namespace_trace_vector(trc,
(JSXMLNamespace **)xml->xml_namespaces.vector,
xml->xml_namespaces.length);
XMLArrayCursorTrace(trc, xml->xml_namespaces.cursors);
if (IS_GC_MARKING_TRACER(trc))
XMLArrayTrim(&xml->xml_namespaces);
xml_trace_vector(trc,
(JSXML **) xml->xml_attrs.vector,
xml->xml_attrs.length);
XMLArrayCursorTrace(trc, xml->xml_attrs.cursors);
if (IS_GC_MARKING_TRACER(trc))
XMLArrayTrim(&xml->xml_attrs);
}
}
void
js_FinalizeXML(JSContext *cx, JSXML *xml)
{
if (JSXML_HAS_KIDS(xml)) {
XMLArrayFinish(cx, &xml->xml_kids);
if (xml->xml_class == JSXML_CLASS_ELEMENT) {
XMLArrayFinish(cx, &xml->xml_namespaces);
XMLArrayFinish(cx, &xml->xml_attrs);
}
}
#ifdef DEBUG_notme
JS_REMOVE_LINK(&xml->links);
#endif
UNMETER(xml_stats.livexml);
}
JSObject *
js_ParseNodeToXMLObject(JSContext *cx, JSParseNode *pn)
{
jsval nsval;
JSXMLNamespace *ns;
JSXMLArray nsarray;
JSXML *xml;
if (!js_GetDefaultXMLNamespace(cx, &nsval))
return NULL;
JS_ASSERT(!JSVAL_IS_PRIMITIVE(nsval));
ns = (JSXMLNamespace *) JS_GetPrivate(cx, JSVAL_TO_OBJECT(nsval));
if (!XMLArrayInit(cx, &nsarray, 1))
return NULL;
XMLARRAY_APPEND(cx, &nsarray, ns);
xml = ParseNodeToXML(cx, pn, &nsarray, XSF_PRECOMPILED_ROOT);
XMLArrayFinish(cx, &nsarray);
if (!xml)
return NULL;
return xml->object;
}
JSObject *
js_NewXMLObject(JSContext *cx, JSXMLClass xml_class)
{
JSXML *xml;
JSObject *obj;
JSTempValueRooter tvr;
xml = js_NewXML(cx, xml_class);
if (!xml)
return NULL;
JS_PUSH_TEMP_ROOT_GCTHING(cx, xml, &tvr);
obj = js_GetXMLObject(cx, xml);
JS_POP_TEMP_ROOT(cx, &tvr);
return obj;
}
static JSObject *
NewXMLObject(JSContext *cx, JSXML *xml)
{
JSObject *obj;
obj = js_NewObject(cx, &js_XMLClass, NULL, NULL);
if (!obj || !JS_SetPrivate(cx, obj, xml)) {
cx->weakRoots.newborn[GCX_OBJECT] = NULL;
return NULL;
}
METER(xml_stats.xmlobj);
METER(xml_stats.livexmlobj);
return obj;
}
JSObject *
js_GetXMLObject(JSContext *cx, JSXML *xml)
{
JSObject *obj;
obj = xml->object;
if (obj) {
JS_ASSERT(JS_GetPrivate(cx, obj) == xml);
return obj;
}
/*
* A JSXML cannot be shared among threads unless it has an object.
* A JSXML cannot be given an object unless:
* (a) it has no parent; or
* (b) its parent has no object (therefore is thread-private); or
* (c) its parent's object is locked.
*
* Once given an object, a JSXML is immutable.
*/
JS_ASSERT(!xml->parent ||
!xml->parent->object ||
JS_IS_OBJ_LOCKED(cx, xml->parent->object));
obj = NewXMLObject(cx, xml);
if (!obj)
return NULL;
xml->object = obj;
return obj;
}
JSObject *
js_InitNamespaceClass(JSContext *cx, JSObject *obj)
{
return JS_InitClass(cx, obj, NULL, &js_NamespaceClass.base, Namespace, 2,
namespace_props, namespace_methods, NULL, NULL);
}
JSObject *
js_InitQNameClass(JSContext *cx, JSObject *obj)
{
return JS_InitClass(cx, obj, NULL, &js_QNameClass.base, QName, 2,
qname_props, qname_methods, NULL, NULL);
}
JSObject *
js_InitAttributeNameClass(JSContext *cx, JSObject *obj)
{
return JS_InitClass(cx, obj, NULL, &js_AttributeNameClass, AttributeName, 2,
qname_props, qname_methods, NULL, NULL);
}
JSObject *
js_InitAnyNameClass(JSContext *cx, JSObject *obj)
{
jsval v;
if (!js_GetAnyName(cx, &v))
return NULL;
return JSVAL_TO_OBJECT(v);
}
JSObject *
js_InitXMLClass(JSContext *cx, JSObject *obj)
{
JSObject *proto, *pobj;
JSFunction *fun;
JSXML *xml;
JSProperty *prop;
JSScopeProperty *sprop;
jsval cval, vp[3];
/* Define the isXMLName function. */
if (!JS_DefineFunction(cx, obj, js_isXMLName_str, xml_isXMLName, 1, 0))
return NULL;
/* Define the XML class constructor and prototype. */
proto = JS_InitClass(cx, obj, NULL, &js_XMLClass, XML, 1,
NULL, xml_methods,
xml_static_props, xml_static_methods);
if (!proto)
return NULL;
xml = js_NewXML(cx, JSXML_CLASS_TEXT);
if (!xml || !JS_SetPrivate(cx, proto, xml))
return NULL;
xml->object = proto;
METER(xml_stats.xmlobj);
METER(xml_stats.livexmlobj);
/*
* Prepare to set default settings on the XML constructor we just made.
* NB: We can't use JS_GetConstructor, because it calls OBJ_GET_PROPERTY,
* which is xml_getProperty, which creates a new XMLList every time! We
* must instead call js_LookupProperty directly.
*/
if (!js_LookupProperty(cx, proto,
ATOM_TO_JSID(cx->runtime->atomState.constructorAtom),
&pobj, &prop)) {
return NULL;
}
JS_ASSERT(prop);
sprop = (JSScopeProperty *) prop;
JS_ASSERT(SPROP_HAS_VALID_SLOT(sprop, OBJ_SCOPE(pobj)));
cval = OBJ_GET_SLOT(cx, pobj, sprop->slot);
OBJ_DROP_PROPERTY(cx, pobj, prop);
JS_ASSERT(VALUE_IS_FUNCTION(cx, cval));
/* Set default settings. */
vp[0] = JSVAL_NULL;
vp[1] = cval;
vp[2] = JSVAL_VOID;
if (!xml_setSettings(cx, 1, vp))
return NULL;
/* Define the XMLList function and give it the same prototype as XML. */
fun = JS_DefineFunction(cx, obj, js_XMLList_str, XMLList, 1, 0);
if (!fun)
return NULL;
if (!js_SetClassPrototype(cx, fun->object, proto,
JSPROP_READONLY | JSPROP_PERMANENT)) {
return NULL;
}
return proto;
}
JSObject *
js_InitXMLClasses(JSContext *cx, JSObject *obj)
{
if (!js_InitNamespaceClass(cx, obj))
return NULL;
if (!js_InitQNameClass(cx, obj))
return NULL;
if (!js_InitAttributeNameClass(cx, obj))
return NULL;
if (!js_InitAnyNameClass(cx, obj))
return NULL;
return js_InitXMLClass(cx, obj);
}
JSBool
js_GetFunctionNamespace(JSContext *cx, jsval *vp)
{
JSRuntime *rt;
JSObject *obj;
JSAtom *atom;
JSString *prefix, *uri;
/* An invalid URI, for internal use only, guaranteed not to collide. */
static const char anti_uri[] = "@mozilla.org/js/function";
/* Optimize by avoiding JS_LOCK_GC(rt) for the common case. */
rt = cx->runtime;
obj = rt->functionNamespaceObject;
if (!obj) {
JS_LOCK_GC(rt);
obj = rt->functionNamespaceObject;
if (!obj) {
JS_UNLOCK_GC(rt);
atom = js_Atomize(cx, js_function_str, 8, 0);
JS_ASSERT(atom);
prefix = ATOM_TO_STRING(atom);
/*
* Note that any race to atomize anti_uri here is resolved by
* the atom table code, such that at most one atom for anti_uri
* is created. We store in rt->atomState.lazy unconditionally,
* since we are guaranteed to overwrite either null or the same
* atom pointer.
*/
atom = js_Atomize(cx, anti_uri, sizeof anti_uri - 1, ATOM_PINNED);
if (!atom)
return JS_FALSE;
rt->atomState.lazy.functionNamespaceURIAtom = atom;
uri = ATOM_TO_STRING(atom);
obj = js_NewXMLNamespaceObject(cx, prefix, uri, JS_FALSE);
if (!obj)
return JS_FALSE;
/*
* Avoid entraining any in-scope Object.prototype. The loss of
* Namespace.prototype is not detectable, as there is no way to
* refer to this instance in scripts. When used to qualify method
* names, its prefix and uri references are copied to the QName.
*/
OBJ_SET_PROTO(cx, obj, NULL);
OBJ_SET_PARENT(cx, obj, NULL);
JS_LOCK_GC(rt);
if (!rt->functionNamespaceObject)
rt->functionNamespaceObject = obj;
else
obj = rt->functionNamespaceObject;
}
JS_UNLOCK_GC(rt);
}
*vp = OBJECT_TO_JSVAL(obj);
return JS_TRUE;
}
/*
* Note the asymmetry between js_GetDefaultXMLNamespace and js_SetDefaultXML-
* Namespace. Get searches fp->scopeChain for JS_DEFAULT_XML_NAMESPACE_ID,
* while Set sets JS_DEFAULT_XML_NAMESPACE_ID in fp->varobj (unless fp is a
* lightweight function activation). There's no requirement that fp->varobj
* lie directly on fp->scopeChain, although it should be reachable using the
* prototype chain from a scope object (cf. JSOPTION_VAROBJFIX in jsapi.h).
*
* If Get can't find JS_DEFAULT_XML_NAMESPACE_ID along the scope chain, it
* creates a default namespace via 'new Namespace()'. In contrast, Set uses
* its v argument as the uri of a new Namespace, with "" as the prefix. See
* ECMA-357 12.1 and 12.1.1. Note that if Set is called with a Namespace n,
* the default XML namespace will be set to ("", n.uri). So the uri string
* is really the only usefully stored value of the default namespace.
*/
JSBool
js_GetDefaultXMLNamespace(JSContext *cx, jsval *vp)
{
JSStackFrame *fp;
JSObject *nsobj, *obj, *tmp;
jsval v;
fp = cx->fp;
nsobj = fp->xmlNamespace;
if (nsobj) {
*vp = OBJECT_TO_JSVAL(nsobj);
return JS_TRUE;
}
obj = NULL;
for (tmp = fp->scopeChain; tmp; tmp = OBJ_GET_PARENT(cx, obj)) {
obj = tmp;
if (!OBJ_GET_PROPERTY(cx, obj, JS_DEFAULT_XML_NAMESPACE_ID, &v))
return JS_FALSE;
if (!JSVAL_IS_PRIMITIVE(v)) {
fp->xmlNamespace = JSVAL_TO_OBJECT(v);
*vp = v;
return JS_TRUE;
}
}
nsobj = js_ConstructObject(cx, &js_NamespaceClass.base, NULL, obj, 0, NULL);
if (!nsobj)
return JS_FALSE;
v = OBJECT_TO_JSVAL(nsobj);
if (obj &&
!OBJ_DEFINE_PROPERTY(cx, obj, JS_DEFAULT_XML_NAMESPACE_ID, v,
JS_PropertyStub, JS_PropertyStub,
JSPROP_PERMANENT, NULL)) {
return JS_FALSE;
}
fp->xmlNamespace = nsobj;
*vp = v;
return JS_TRUE;
}
JSBool
js_SetDefaultXMLNamespace(JSContext *cx, jsval v)
{
jsval argv[2];
JSObject *nsobj, *varobj;
JSStackFrame *fp;
argv[0] = STRING_TO_JSVAL(cx->runtime->emptyString);
argv[1] = v;
nsobj = js_ConstructObject(cx, &js_NamespaceClass.base, NULL, NULL,
2, argv);
if (!nsobj)
return JS_FALSE;
v = OBJECT_TO_JSVAL(nsobj);
fp = cx->fp;
varobj = fp->varobj;
if (varobj) {
if (!OBJ_DEFINE_PROPERTY(cx, varobj, JS_DEFAULT_XML_NAMESPACE_ID, v,
JS_PropertyStub, JS_PropertyStub,
JSPROP_PERMANENT, NULL)) {
return JS_FALSE;
}
} else {
JS_ASSERT(fp->fun && !JSFUN_HEAVYWEIGHT_TEST(fp->fun->flags));
}
fp->xmlNamespace = JSVAL_TO_OBJECT(v);
return JS_TRUE;
}
JSBool
js_ToAttributeName(JSContext *cx, jsval *vp)
{
JSXMLQName *qn;
qn = ToAttributeName(cx, *vp);
if (!qn)
return JS_FALSE;
*vp = OBJECT_TO_JSVAL(qn->object);
return JS_TRUE;
}
JSString *
js_EscapeAttributeValue(JSContext *cx, JSString *str)
{
return EscapeAttributeValue(cx, NULL, str);
}
JSString *
js_AddAttributePart(JSContext *cx, JSBool isName, JSString *str, JSString *str2)
{
size_t len, len2, newlen;
jschar *chars, *chars2;
JSSTRING_CHARS_AND_LENGTH(str, chars, len);
if (!JSSTRING_IS_MUTABLE(str)) {
str = js_NewStringCopyN(cx, chars, len);
if (!str)
return NULL;
chars = str->u.chars;
} else {
/*
* Reallocating str (because we know it has no other references)
* requires purging any deflated string cached for it.
*/
js_PurgeDeflatedStringCache(cx->runtime, str);
}
JSSTRING_CHARS_AND_LENGTH(str2, chars2, len2);
newlen = (isName) ? len + 1 + len2 : len + 2 + len2 + 1;
chars = (jschar *) JS_realloc(cx, chars, (newlen+1) * sizeof(jschar));
if (!chars)
return NULL;
JSSTRING_INIT(str, chars, newlen);
chars += len;
if (isName) {
*chars++ = ' ';
js_strncpy(chars, chars2, len2);
chars += len2;
} else {
*chars++ = '=';
*chars++ = '"';
js_strncpy(chars, chars2, len2);
chars += len2;
*chars++ = '"';
}
*chars = 0;
return str;
}
JSString *
js_EscapeElementValue(JSContext *cx, JSString *str)
{
return EscapeElementValue(cx, NULL, str);
}
JSString *
js_ValueToXMLString(JSContext *cx, jsval v)
{
return ToXMLString(cx, v);
}
static JSBool
anyname_toString(JSContext *cx, JSObject *obj, uintN argc, jsval *argv,
jsval *rval)
{
*rval = ATOM_KEY(cx->runtime->atomState.starAtom);
return JS_TRUE;
}
JSBool
js_GetAnyName(JSContext *cx, jsval *vp)
{
JSRuntime *rt;
JSObject *obj;
JSXMLQName *qn;
JSBool ok;
/* Optimize by avoiding JS_LOCK_GC(rt) for the common case. */
rt = cx->runtime;
obj = rt->anynameObject;
if (!obj) {
JS_LOCK_GC(rt);
obj = rt->anynameObject;
if (!obj) {
JS_UNLOCK_GC(rt);
/*
* Protect multiple newborns created below, in the do-while(0)
* loop used to ensure that we leave this local root scope.
*/
ok = js_EnterLocalRootScope(cx);
if (!ok)
return JS_FALSE;
do {
qn = js_NewXMLQName(cx, rt->emptyString, rt->emptyString,
ATOM_TO_STRING(rt->atomState.starAtom));
if (!qn) {
ok = JS_FALSE;
break;
}
obj = js_NewObject(cx, &js_AnyNameClass, NULL, NULL);
if (!obj || !JS_SetPrivate(cx, obj, qn)) {
cx->weakRoots.newborn[GCX_OBJECT] = NULL;
ok = JS_FALSE;
break;
}
qn->object = obj;
METER(xml_stats.qnameobj);
METER(xml_stats.liveqnameobj);
/*
* Avoid entraining any Object.prototype found via cx's scope
* chain or global object. This loses the default toString,
* but no big deal: we want to customize toString anyway for
* clearer diagnostics.
*/
if (!JS_DefineFunction(cx, obj, js_toString_str,
anyname_toString, 0, 0)) {
ok = JS_FALSE;
break;
}
OBJ_SET_PROTO(cx, obj, NULL);
JS_ASSERT(!OBJ_GET_PARENT(cx, obj));
} while (0);
js_LeaveLocalRootScopeWithResult(cx, OBJECT_TO_JSVAL(obj));
if (!ok)
return JS_FALSE;
JS_LOCK_GC(rt);
if (!rt->anynameObject)
rt->anynameObject = obj;
else
obj = rt->anynameObject;
}
JS_UNLOCK_GC(rt);
}
*vp = OBJECT_TO_JSVAL(obj);
return JS_TRUE;
}
JSBool
js_FindXMLProperty(JSContext *cx, jsval nameval, JSObject **objp, jsid *idp)
{
JSObject *nameobj;
jsval v;
JSXMLQName *qn;
jsid funid;
JSObject *obj, *target, *proto, *pobj;
JSXML *xml;
JSBool found;
JSProperty *prop;
const char *printable;
JS_ASSERT(!JSVAL_IS_PRIMITIVE(nameval));
nameobj = JSVAL_TO_OBJECT(nameval);
if (OBJ_GET_CLASS(cx, nameobj) == &js_AnyNameClass) {
v = STRING_TO_JSVAL(ATOM_TO_STRING(cx->runtime->atomState.starAtom));
nameobj = js_ConstructObject(cx, &js_QNameClass.base, NULL, NULL, 1,
&v);
if (!nameobj)
return JS_FALSE;
} else {
JS_ASSERT(OBJ_GET_CLASS(cx, nameobj) == &js_AttributeNameClass ||
OBJ_GET_CLASS(cx, nameobj) == &js_QNameClass.base);
}
qn = (JSXMLQName *) JS_GetPrivate(cx, nameobj);
if (!IsFunctionQName(cx, qn, &funid))
return JS_FALSE;
obj = cx->fp->scopeChain;
do {
/* Skip any With object that can wrap XML. */
target = obj;
while (OBJ_GET_CLASS(cx, target) == &js_WithClass) {
proto = OBJ_GET_PROTO(cx, target);
if (!proto)
break;
target = proto;
}
if (OBJECT_IS_XML(cx, target)) {
if (funid == 0) {
xml = (JSXML *) JS_GetPrivate(cx, target);
found = HasNamedProperty(xml, qn);
} else {
if (!HasFunctionProperty(cx, target, funid, &found))
return JS_FALSE;
}
if (found) {
*idp = OBJECT_TO_JSID(nameobj);
*objp = target;
return JS_TRUE;
}
} else if (funid != 0) {
if (!OBJ_LOOKUP_PROPERTY(cx, target, funid, &pobj, &prop))
return JS_FALSE;
if (prop) {
OBJ_DROP_PROPERTY(cx, pobj, prop);
*idp = funid;
*objp = target;
return JS_TRUE;
}
}
} while ((obj = OBJ_GET_PARENT(cx, obj)) != NULL);
printable = js_ValueToPrintableString(cx, OBJECT_TO_JSVAL(nameobj));
if (printable) {
JS_ReportErrorFlagsAndNumber(cx, JSREPORT_ERROR,
js_GetErrorMessage, NULL,
JSMSG_UNDEFINED_XML_NAME, printable);
}
return JS_FALSE;
}
JSBool
js_GetXMLFunction(JSContext *cx, JSObject *obj, jsid id, jsval *vp)
{
JSObject *target;
JSXML *xml;
JSTempValueRooter tvr;
JSBool ok;
JS_ASSERT(OBJECT_IS_XML(cx, obj));
/* After this point, control must flow through label out: to exit. */
JS_PUSH_TEMP_ROOT_OBJECT(cx, NULL, &tvr);
/*
* See comments before xml_lookupProperty about the need for the proto
* chain lookup.
*/
target = obj;
for (;;) {
ok = js_GetProperty(cx, target, id, vp);
if (!ok)
goto out;
if (VALUE_IS_FUNCTION(cx, *vp)) {
ok = JS_TRUE;
goto out;
}
target = OBJ_GET_PROTO(cx, target);
if (target == NULL)
break;
tvr.u.object = target;
}
xml = (JSXML *) JS_GetPrivate(cx, obj);
if (HasSimpleContent(xml)) {
/* Search in String.prototype to implement 11.2.2.1 Step 3(f). */
ok = js_GetClassPrototype(cx, NULL, INT_TO_JSID(JSProto_String),
&tvr.u.object);
if (!ok)
goto out;
JS_ASSERT(tvr.u.object);
ok = OBJ_GET_PROPERTY(cx, tvr.u.object, id, vp);
}
out:
JS_POP_TEMP_ROOT(cx, &tvr);
return ok;
}
static JSXML *
GetPrivate(JSContext *cx, JSObject *obj, const char *method)
{
JSXML *xml;
xml = (JSXML *) JS_GetInstancePrivate(cx, obj, &js_XMLClass, NULL);
if (!xml) {
JS_ReportErrorNumber(cx, js_GetErrorMessage, NULL,
JSMSG_INCOMPATIBLE_METHOD,
js_XML_str, method, OBJ_GET_CLASS(cx, obj)->name);
}
return xml;
}
JSBool
js_GetXMLDescendants(JSContext *cx, JSObject *obj, jsval id, jsval *vp)
{
JSXML *xml, *list;
xml = GetPrivate(cx, obj, "descendants internal method");
if (!xml)
return JS_FALSE;
list = Descendants(cx, xml, id);
if (!list)
return JS_FALSE;
*vp = OBJECT_TO_JSVAL(list->object);
return JS_TRUE;
}
JSBool
js_DeleteXMLListElements(JSContext *cx, JSObject *listobj)
{
JSXML *list;
uint32 n;
list = (JSXML *) JS_GetPrivate(cx, listobj);
for (n = list->xml_kids.length; n != 0; --n)
DeleteListElement(cx, list, 0);
return JS_TRUE;
}
JSBool
js_FilterXMLList(JSContext *cx, JSObject *obj, jsbytecode *pc, jsval *vp)
{
JSBool ok, match;
JSStackFrame *fp;
uint32 flags;
JSObject *scobj, *listobj, *resobj, *withobj, *kidobj;
JSXML *xml, *list, *result, *kid;
JSXMLArrayCursor cursor;
ok = js_EnterLocalRootScope(cx);
if (!ok)
return JS_FALSE;
/* All control flow after this point must exit via label out or bad. */
*vp = JSVAL_NULL;
fp = cx->fp;
flags = fp->flags;
fp->flags = flags | JSFRAME_FILTERING;
scobj = js_GetScopeChain(cx, fp);
withobj = NULL;
if (!scobj)
goto bad;
xml = GetPrivate(cx, obj, "filtering predicate operator");
if (!xml)
goto bad;
if (xml->xml_class == JSXML_CLASS_LIST) {
list = xml;
} else {
listobj = js_NewXMLObject(cx, JSXML_CLASS_LIST);
if (!listobj)
goto bad;
list = (JSXML *) JS_GetPrivate(cx, listobj);
ok = Append(cx, list, xml);
if (!ok)
goto out;
}
resobj = js_NewXMLObject(cx, JSXML_CLASS_LIST);
if (!resobj)
goto bad;
result = (JSXML *) JS_GetPrivate(cx, resobj);
/* Hoist the scope chain update out of the loop over kids. */
withobj = js_NewWithObject(cx, NULL, scobj, -1);
if (!withobj)
goto bad;
fp->scopeChain = withobj;
XMLArrayCursorInit(&cursor, &list->xml_kids);
while ((kid = (JSXML *) XMLArrayCursorNext(&cursor)) != NULL) {
kidobj = js_GetXMLObject(cx, kid);
if (!kidobj)
break;
OBJ_SET_PROTO(cx, withobj, kidobj);
ok = js_Interpret(cx, pc, vp) && js_ValueToBoolean(cx, *vp, &match);
if (ok && match)
ok = Append(cx, result, kid);
if (!ok)
break;
}
XMLArrayCursorFinish(&cursor);
if (!ok)
goto out;
if (kid)
goto bad;
*vp = OBJECT_TO_JSVAL(resobj);
out:
fp->flags = flags | (fp->flags & JSFRAME_POP_BLOCKS);
if (withobj) {
fp->scopeChain = scobj;
JS_SetPrivate(cx, withobj, NULL);
}
js_LeaveLocalRootScopeWithResult(cx, *vp);
return ok;
bad:
ok = JS_FALSE;
goto out;
}
JSObject *
js_ValueToXMLObject(JSContext *cx, jsval v)
{
return ToXML(cx, v);
}
JSObject *
js_ValueToXMLListObject(JSContext *cx, jsval v)
{
return ToXMLList(cx, v);
}
JSObject *
js_CloneXMLObject(JSContext *cx, JSObject *obj)
{
uintN flags;
JSXML *xml;
if (!GetXMLSettingFlags(cx, &flags))
return NULL;
xml = (JSXML *) JS_GetPrivate(cx, obj);
if (flags & (XSF_IGNORE_COMMENTS |
XSF_IGNORE_PROCESSING_INSTRUCTIONS |
XSF_IGNORE_WHITESPACE)) {
xml = DeepCopy(cx, xml, NULL, flags);
if (!xml)
return NULL;
return xml->object;
}
return NewXMLObject(cx, xml);
}
JSObject *
js_NewXMLSpecialObject(JSContext *cx, JSXMLClass xml_class, JSString *name,
JSString *value)
{
uintN flags;
JSObject *obj;
JSXML *xml;
JSXMLQName *qn;
if (!GetXMLSettingFlags(cx, &flags))
return NULL;
if ((xml_class == JSXML_CLASS_COMMENT &&
(flags & XSF_IGNORE_COMMENTS)) ||
(xml_class == JSXML_CLASS_PROCESSING_INSTRUCTION &&
(flags & XSF_IGNORE_PROCESSING_INSTRUCTIONS))) {
return js_NewXMLObject(cx, JSXML_CLASS_TEXT);
}
obj = js_NewXMLObject(cx, xml_class);
if (!obj)
return NULL;
xml = (JSXML *) JS_GetPrivate(cx, obj);
if (name) {
qn = js_NewXMLQName(cx, cx->runtime->emptyString, NULL, name);
if (!qn)
return NULL;
xml->name = qn;
}
xml->xml_value = value;
return obj;
}
JSString *
js_MakeXMLCDATAString(JSContext *cx, JSString *str)
{
return MakeXMLCDATAString(cx, NULL, str);
}
JSString *
js_MakeXMLCommentString(JSContext *cx, JSString *str)
{
return MakeXMLCommentString(cx, NULL, str);
}
JSString *
js_MakeXMLPIString(JSContext *cx, JSString *name, JSString *str)
{
return MakeXMLPIString(cx, NULL, name, str);
}
#endif /* JS_HAS_XML_SUPPORT */
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