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// Copyright 2016 The Servo Project Developers. See the COPYRIGHT
// file at the top-level directory of this distribution.
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// option. This file may not be copied, modified, or distributed
// except according to those terms.
//! Core Foundation errors.
pub use core_foundation_sys::error::*;
use std::error::Error;
use std::fmt;
use crate::base::{CFIndex, TCFType};
use crate::string::CFString;
declare_TCFType! {
/// An error value.
CFError, CFErrorRef
}
impl_TCFType!(CFError, CFErrorRef, CFErrorGetTypeID);
impl fmt::Debug for CFError {
fn fmt(&self, fmt: &mut fmt::Formatter) -> fmt::Result {
fmt.debug_struct("CFError")
.field("domain", &self.domain())
.field("code", &self.code())
.field("description", &self.description())
.finish()
}
}
impl fmt::Display for CFError {
fn fmt(&self, fmt: &mut fmt::Formatter) -> fmt::Result {
write!(fmt, "{}", self.description())
}
}
impl Error for CFError {
fn description(&self) -> &str {
"a Core Foundation error"
}
}
impl CFError {
/// Returns a string identifying the domain with which this error is
/// associated.
pub fn domain(&self) -> CFString {
unsafe {
let s = CFErrorGetDomain(self.0);
CFString::wrap_under_get_rule(s)
}
}
/// Returns the code identifying this type of error.
pub fn code(&self) -> CFIndex {
unsafe { CFErrorGetCode(self.0) }
}
/// Returns a human-presentable description of the error.
pub fn description(&self) -> CFString {
unsafe {
let s = CFErrorCopyDescription(self.0);
CFString::wrap_under_create_rule(s)
}
}
}