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use DOMNode;
use DOMObject;
use DOMXPathResult;
use Error;
use ffi;
use glib::object::IsA;
use glib::translate::*;
use glib_ffi;
use gobject_ffi;
use libc;
use std::mem;
use std::ptr;
glib_wrapper! {
pub struct DOMXPathExpression(Object<ffi::WebKitDOMXPathExpression, ffi::WebKitDOMXPathExpressionClass>): DOMObject;
match fn {
get_type => || ffi::webkit_dom_xpath_expression_get_type(),
}
}
pub trait DOMXPathExpressionExt {
fn evaluate<P: IsA<DOMNode>>(&self, contextNode: &P, type_: libc::c_ushort, inResult: &DOMXPathResult) -> Result<DOMXPathResult, Error>;
}
impl<O: IsA<DOMXPathExpression>> DOMXPathExpressionExt for O {
fn evaluate<P: IsA<DOMNode>>(&self, contextNode: &P, type_: libc::c_ushort, inResult: &DOMXPathResult) -> Result<DOMXPathResult, Error> {
unsafe {
let mut error = ptr::null_mut();
let ret = ffi::webkit_dom_xpath_expression_evaluate(self.to_glib_none().0, contextNode.to_glib_none().0, type_, inResult.to_glib_none().0, &mut error);
if error.is_null() { Ok(from_glib_full(ret)) } else { Err(from_glib_full(error)) }
}
}
}