XPathResult* XPathEvaluator::evaluate(const String& expression, Node* contextNode, XPathNSResolver* resolver, unsigned short type, const ScriptValue&, ExceptionState& exceptionState)
{
if (!isValidContextNode(contextNode)) {
exceptionState.throwDOMException(NotSupportedError, "The node provided is '" + contextNode->nodeName() + "', which is not a valid context node type.");
return nullptr;
}
XPathExpression* expr = createExpression(expression, resolver, exceptionState);
if (exceptionState.hadException())
return nullptr;
return expr->evaluate(contextNode, type, ScriptValue(), exceptionState);
}
NS_IMETHODIMP
nsXULTemplateQueryProcessorXML::GenerateResults(nsISupports* aDatasource,
nsIXULTemplateResult* aRef,
nsISupports* aQuery,
nsISimpleEnumerator** aResults)
{
if (!aQuery)
return NS_ERROR_INVALID_ARG;
mGenerationStarted = true;
nsCOMPtr<nsXMLQuery> xmlquery = do_QueryInterface(aQuery);
if (!xmlquery)
return NS_ERROR_INVALID_ARG;
nsCOMPtr<nsISupports> supports;
nsCOMPtr<nsINode> context;
if (aRef)
aRef->GetBindingObjectFor(xmlquery->GetMemberVariable(),
getter_AddRefs(supports));
context = do_QueryInterface(supports);
if (!context)
context = mRoot;
XPathExpression* expr = xmlquery->GetResultsExpression();
if (!expr)
return NS_ERROR_FAILURE;
ErrorResult rv;
nsRefPtr<XPathResult> exprresults =
expr->Evaluate(*context, XPathResult::ORDERED_NODE_SNAPSHOT_TYPE,
nullptr, rv);
if (rv.Failed()) {
return rv.ErrorCode();
}
nsXULTemplateResultSetXML* results =
new nsXULTemplateResultSetXML(xmlquery, exprresults.forget(),
xmlquery->GetBindingSet());
*aResults = results;
NS_ADDREF(*aResults);
return NS_OK;
}
static v8::Handle<v8::Value> evaluateCallback(const v8::Arguments& args)
{
INC_STATS("DOM.XPathExpression.evaluate");
XPathExpression* imp = V8XPathExpression::toNative(args.Holder());
ExceptionCode ec = 0;
{
EXCEPTION_BLOCK(Node*, contextNode, V8Node::HasInstance(args[0]) ? V8Node::toNative(v8::Handle<v8::Object>::Cast(args[0])) : 0);
EXCEPTION_BLOCK(int, type, toUInt32(args[1]));
EXCEPTION_BLOCK(XPathResult*, inResult, V8XPathResult::HasInstance(args[2]) ? V8XPathResult::toNative(v8::Handle<v8::Object>::Cast(args[2])) : 0);
RefPtr<XPathResult> result = imp->evaluate(contextNode, type, inResult, ec);
if (UNLIKELY(ec))
goto fail;
return toV8(result.release());
}
fail:
V8Proxy::setDOMException(ec);
return v8::Handle<v8::Value>();
}
EncodedJSValue JSC_HOST_CALL jsXPathExpressionPrototypeFunctionEvaluate(ExecState* exec)
{
JSValue thisValue = exec->hostThisValue();
if (!thisValue.inherits(&JSXPathExpression::s_info))
return throwVMTypeError(exec);
JSXPathExpression* castedThis = static_cast<JSXPathExpression*>(asObject(thisValue));
ASSERT_GC_OBJECT_INHERITS(castedThis, &JSXPathExpression::s_info);
XPathExpression* imp = static_cast<XPathExpression*>(castedThis->impl());
ExceptionCode ec = 0;
Node* contextNode(toNode(exec->argument(0)));
if (exec->hadException())
return JSValue::encode(jsUndefined());
unsigned short type(exec->argument(1).toUInt32(exec));
if (exec->hadException())
return JSValue::encode(jsUndefined());
XPathResult* inResult(toXPathResult(exec->argument(2)));
if (exec->hadException())
return JSValue::encode(jsUndefined());
JSC::JSValue result = toJS(exec, castedThis->globalObject(), WTF::getPtr(imp->evaluate(contextNode, type, inResult, ec)));
setDOMException(exec, ec);
return JSValue::encode(result);
}
int main(int argc, char** argv) {
factory_ = Arabica::SimpleDOM::DOMImplementation<string_type, string_adaptor>::getDOMImplementation();
document_ = factory_.createDocument(SA::construct_from_utf8(""), SA::construct_from_utf8(""), 0);
root_ = document_.createElement("root");
document_.appendChild(root_);
assert(root_);
element1_ = document_.createElement(SA::construct_from_utf8("child1"));
element2_ = document_.createElement(SA::construct_from_utf8("child2"));
element3_ = document_.createElement(SA::construct_from_utf8("child3"));
element1_.setAttribute(SA::construct_from_utf8("one"), SA::construct_from_utf8("1"));
element2_.setAttribute(SA::construct_from_utf8("one"), SA::construct_from_utf8("1"));
element2_.setAttribute(SA::construct_from_utf8("two"), SA::construct_from_utf8("1"));
element2_.setAttribute(SA::construct_from_utf8("three"), SA::construct_from_utf8("1"));
element2_.setAttribute(SA::construct_from_utf8("four"), SA::construct_from_utf8("1"));
text_ = document_.createTextNode(SA::construct_from_utf8("data"));
comment_ = document_.createComment(SA::construct_from_utf8("comment"));
processingInstruction_ = document_.createProcessingInstruction(SA::construct_from_utf8("target"), SA::construct_from_utf8("data"));
element2_.appendChild(text_);
spinkle_ = document_.createElement(SA::construct_from_utf8("spinkle"));
element2_.appendChild(spinkle_);
element2_.appendChild(comment_);
element2_.appendChild(processingInstruction_);
attr_ = element1_.getAttributeNode(SA::construct_from_utf8("one"));
root_.appendChild(element1_);
root_.appendChild(element2_);
root_.appendChild(element3_);
chapters_ = factory_.createDocument(SA::construct_from_utf8(""), SA::construct_from_utf8(""), 0);
chapters_.appendChild(chapters_.createElement(SA::construct_from_utf8("document")));
chapters_.getFirstChild().appendChild(chapters_.createElement(SA::construct_from_utf8("chapter"))).appendChild(chapters_.createTextNode(SA::construct_from_utf8("one")));
chapters_.getFirstChild().appendChild(chapters_.createElement(SA::construct_from_utf8("chapter"))).appendChild(chapters_.createTextNode(SA::construct_from_utf8("two")));
chapters_.getFirstChild().appendChild(chapters_.createElement(SA::construct_from_utf8("chapter"))).appendChild(chapters_.createTextNode(SA::construct_from_utf8("three")));
chapters_.getFirstChild().appendChild(chapters_.createElement(SA::construct_from_utf8("chapter"))).appendChild(chapters_.createTextNode(SA::construct_from_utf8("four")));
chapters_.getFirstChild().appendChild(chapters_.createElement(SA::construct_from_utf8("chapter"))).appendChild(chapters_.createTextNode(SA::construct_from_utf8("five")));
numbers_ = factory_.createDocument(SA::construct_from_utf8(""), SA::construct_from_utf8(""), 0);
numbers_.appendChild(numbers_.createElement(SA::construct_from_utf8("doc")));
numbers_.getFirstChild().appendChild(numbers_.createElement(SA::construct_from_utf8("number"))).appendChild(numbers_.createTextNode(SA::construct_from_utf8("1")));
numbers_.getFirstChild().appendChild(numbers_.createElement(SA::construct_from_utf8("number"))).appendChild(numbers_.createTextNode(SA::construct_from_utf8("2")));
numbers_.getFirstChild().appendChild(numbers_.createElement(SA::construct_from_utf8("number"))).appendChild(numbers_.createTextNode(SA::construct_from_utf8("3")));
numbers_.getFirstChild().appendChild(numbers_.createElement(SA::construct_from_utf8("number"))).appendChild(numbers_.createTextNode(SA::construct_from_utf8("4")));
numbers_.getFirstChild().appendChild(numbers_.createElement(SA::construct_from_utf8("number"))).appendChild(numbers_.createTextNode(SA::construct_from_utf8("5")));
numbers_.getFirstChild().appendChild(numbers_.createElement(SA::construct_from_utf8("number"))).appendChild(numbers_.createTextNode(SA::construct_from_utf8("6")));
numbers_.getFirstChild().appendChild(numbers_.createElement(SA::construct_from_utf8("number"))).appendChild(numbers_.createTextNode(SA::construct_from_utf8("7")));
numbers_.getFirstChild().appendChild(numbers_.createElement(SA::construct_from_utf8("number"))).appendChild(numbers_.createTextNode(SA::construct_from_utf8("8")));
numbers_.getFirstChild().appendChild(numbers_.createElement(SA::construct_from_utf8("number"))).appendChild(numbers_.createTextNode(SA::construct_from_utf8("9")));
std::cout << document_ << std::endl;
std::cout << numbers_ << std::endl;
std::cout << chapters_ << std::endl;
if (true) {
using namespace Arabica::XPath;
using namespace Arabica::DOM;
XPathValue<string_type, string_adaptor> result = parser.evaluate(SA::construct_from_utf8("//*"), document_);
for(int i = 0; i < result.asNodeSet().size(); i++) {
Node<string_type, string_adaptor> node = result.asNodeSet()[i];
std::string xpathExpr = uscxml::DOMUtils::xPathForNode(node);
if (xpathExpr.size()) {
XPathValue<string_type, string_adaptor> innerResult = parser.evaluate(xpathExpr, document_);
assert(innerResult.asNodeSet().size() > 0);
assert(innerResult.asNodeSet().size() == 1);
assert(innerResult.asNodeSet()[0] == node);
} else {
assert(node.getNodeType() != Node_base::ELEMENT_NODE);
}
}
}
if (false) {
using namespace Arabica::XPath;
StringVariableResolver svr;
svr.setVariable(SA::construct_from_utf8("index"), SA::construct_from_utf8("1"));
parser.setVariableResolver(svr);
XPathValue<string_type, string_adaptor> result = parser.evaluate(SA::construct_from_utf8("/root/*[@two = $index]"), document_);
assert(NODE_SET == result.type());
assert(element2_ == result.asNodeSet()[0]);
parser.resetVariableResolver();
} // test18
if (false) {
using namespace Arabica::XPath;
XPathExpression<string_type, string_adaptor> xpath = parser.compile(SA::construct_from_utf8("root/*[position() = 2]"));
XPathValue<string_type, string_adaptor> result = xpath.evaluate(document_);
assert(NODE_SET == result.type());
assert(1 == result.asNodeSet().size());
Arabica::DOM::Node<string_type, string_adaptor> n = result.asNodeSet()[0];
assert(element2_ == n);
} // test19
if (false) {
using namespace Arabica::XPath;
Arabica::DOM::DocumentFragment<string_type, string_adaptor> frag = document_.createDocumentFragment();
frag.appendChild(document_.createElement(SA::construct_from_utf8("foo")));
NodeSetVariableResolver svr;
NodeSet<string_type, string_adaptor> ns;
ns.push_back(frag);
svr.setVariable(SA::construct_from_utf8("fruit"), ns);
parser.setVariableResolver(svr);
XPathValue<string_type, string_adaptor> result = parser.evaluate_expr(SA::construct_from_utf8("$fruit/foo|/root/child3"), document_);
assert(NODE_SET == result.type());
assert(2 == result.asNodeSet().size());
assert(element3_ == result.asNodeSet()[0]);
} // testUnion11
if (false) {
using namespace Arabica::XPath;
XPathValue<string_type, string_adaptor> result = parser.evaluate_expr(SA::construct_from_utf8("local-name(/root)"), document_);
assert(STRING == result.type());
assert(SA::construct_from_utf8("root") == result.asString());
} // testLocalNameFn1
if (0) {
using namespace Arabica::XPath;
Arabica::DOM::DocumentFragment<std::string> frag = document_.createDocumentFragment();
frag.appendChild(document_.createElement("foo"));
NodeSetVariableResolver svr;
NodeSet<string_type, string_adaptor> ns;
ns.push_back(frag);
svr.setVariable("fruit", ns);
parser.setVariableResolver(svr);
XPathValue<string_type, string_adaptor> result = parser.evaluate(SA::construct_from_utf8("local-name($fruit/foo) == 'foo'"), document_);
std::cout << result.asBool() << std::endl;
}
}
