mirror of
https://github.com/servo/servo.git
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85 lines
2.4 KiB
Rust
85 lines
2.4 KiB
Rust
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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use dom::bindings::conversions::ToJSValConvertible;
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use dom::bindings::js::JSRef;
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use dom::domexception::DOMException;
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use dom::window::Window;
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use js::jsapi::{JSContext, JSBool};
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use js::jsapi::{JS_IsExceptionPending, JS_SetPendingException};
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use js::jsapi::{JS_ReportErrorNumber, JSErrorFormatString, JSEXN_TYPEERR};
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use js::glue::{ReportError};
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use libc;
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use std::ptr;
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#[deriving(Show)]
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pub enum Error {
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IndexSize,
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FailureUnknown,
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NotFound,
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HierarchyRequest,
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InvalidCharacter,
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NotSupported,
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InvalidState,
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Syntax,
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NamespaceError,
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InvalidAccess,
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Security,
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Network,
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Abort,
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Timeout
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}
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pub type Fallible<T> = Result<T, Error>;
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pub type ErrorResult = Fallible<()>;
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pub fn throw_dom_exception(cx: *mut JSContext, global: &JSRef<Window>,
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result: Error) {
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assert!(unsafe { JS_IsExceptionPending(cx) } == 0);
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let exception = DOMException::new_from_error(global, result).root();
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let thrown = exception.to_jsval(cx);
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unsafe {
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JS_SetPendingException(cx, thrown);
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}
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}
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pub fn throw_not_in_union(cx: *mut JSContext, names: &'static str) -> JSBool {
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assert!(unsafe { JS_IsExceptionPending(cx) } == 0);
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let message = format!("argument could not be converted to any of: {}", names);
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message.with_c_str(|string| {
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unsafe { ReportError(cx, string) };
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});
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return 0;
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}
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static ERROR_FORMAT_STRING_STRING: [libc::c_char, ..4] = [
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'{' as libc::c_char,
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'0' as libc::c_char,
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'}' as libc::c_char,
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0 as libc::c_char,
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];
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static ERROR_FORMAT_STRING: JSErrorFormatString = JSErrorFormatString {
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format: &ERROR_FORMAT_STRING_STRING as *libc::c_char,
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argCount: 1,
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exnType: JSEXN_TYPEERR as i16,
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};
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extern fn get_error_message(_user_ref: *mut libc::c_void,
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_locale: *libc::c_char,
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error_number: libc::c_uint) -> *JSErrorFormatString
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{
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assert_eq!(error_number, 0);
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&ERROR_FORMAT_STRING as *JSErrorFormatString
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}
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pub fn throw_type_error(cx: *mut JSContext, error: &str) {
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let error = error.to_c_str();
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error.with_ref(|error| unsafe {
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JS_ReportErrorNumber(cx, Some(get_error_message), ptr::mut_null(), 0, error);
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});
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}
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