gstreamer-rs/gstreamer/src/error.rs

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// Copyright (C) 2016-2017 Sebastian Dröge <sebastian@centricular.com>
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.
use thiserror::Error;
use glib;
use glib::IsA;
#[macro_export]
macro_rules! gst_error_msg(
// Plain strings
($err:expr, ($msg:expr), [$dbg:expr]) => {
$crate::ErrorMessage::new(&$err, Some($msg),
Some($dbg),
file!(), module_path!(), line!())
};
($err:expr, ($msg:expr)) => {
$crate::ErrorMessage::new(&$err, Some($msg),
None,
file!(), module_path!(), line!())
};
($err:expr, [$dbg:expr]) => {
$crate::ErrorMessage::new(&$err, None,
Some($dbg),
file!(), module_path!(), line!())
};
// Format strings
($err:expr, ($($msg:tt)*), [$($dbg:tt)*]) => { {
$crate::ErrorMessage::new(&$err, Some(format!($($msg)*).as_ref()),
Some(format!($($dbg)*).as_ref()),
file!(), module_path!(), line!())
}};
($err:expr, ($($msg:tt)*)) => { {
$crate::ErrorMessage::new(&$err, Some(format!($($msg)*).as_ref()),
None,
file!(), module_path!(), line!())
}};
($err:expr, [$($dbg:tt)*]) => { {
$crate::ErrorMessage::new(&$err, None,
Some(format!($($dbg)*).as_ref()),
file!(), module_path!(), line!())
}};
);
#[derive(Clone, Debug, PartialEq, Eq, Error)]
#[error("Error {:?} ({:?}) at {}:{}", .message, .debug, .filename, .line)]
pub struct ErrorMessage {
pub(crate) error_domain: glib::Quark,
pub(crate) error_code: i32,
pub(crate) message: Option<String>,
pub(crate) debug: Option<String>,
pub(crate) filename: &'static str,
pub(crate) function: &'static str,
pub(crate) line: u32,
}
impl ErrorMessage {
pub fn new<T: ::MessageErrorDomain>(
error: &T,
message: Option<&str>,
debug: Option<&str>,
filename: &'static str,
function: &'static str,
line: u32,
) -> ErrorMessage {
let error_domain = T::domain();
let error_code = error.code();
ErrorMessage {
error_domain,
error_code,
message: message.map(String::from),
debug: debug.map(String::from),
filename,
function,
line,
}
}
}
#[macro_export]
macro_rules! gst_loggable_error(
// Plain strings
($cat:expr, $msg:expr) => {
$crate::LoggableError::new($cat.clone(), $crate::glib::glib_bool_error!($msg))
};
// Format strings
($cat:expr, $($msg:tt)*) => { {
$crate::LoggableError::new($cat.clone(), $crate::glib::glib_bool_error!($($msg)*))
}};
);
#[macro_export]
macro_rules! gst_result_from_gboolean(
// Plain strings
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($gst_sys_bool:expr, $cat:expr, $msg:expr) => {
$crate::glib::glib_result_from_gboolean!($gst_sys_bool, $msg)
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.map_err(|bool_err| $crate::LoggableError::new($cat.clone(), bool_err))
};
// Format strings
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($gst_sys_bool:expr, $cat:expr, $($msg:tt)*) => { {
$crate::glib::glib_result_from_gboolean!($gst_sys_bool, $($msg)*)
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.map_err(|bool_err| $crate::LoggableError::new($cat.clone(), bool_err))
}};
);
#[derive(Debug, Clone, Error)]
#[error("Error {:?}: {:?} at {}:{}", .category.get_name(), .bool_error.message, .bool_error.filename, .bool_error.line)]
pub struct LoggableError {
category: ::DebugCategory,
bool_error: glib::BoolError,
}
impl LoggableError {
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pub fn new(category: ::DebugCategory, bool_error: glib::BoolError) -> LoggableError {
LoggableError {
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category,
bool_error,
}
}
pub fn log(&self) {
self.category.log(
None as Option<&::Object>,
::DebugLevel::Error,
self.bool_error.filename,
self.bool_error.function,
self.bool_error.line,
format_args!("{}", self.bool_error.message),
);
}
pub fn log_with_object<O: IsA<::Object>>(&self, obj: &O) {
self.category.log(
Some(obj),
::DebugLevel::Error,
self.bool_error.filename,
self.bool_error.function,
self.bool_error.line,
format_args!("{}", self.bool_error.message),
);
}
pub fn category(&self) -> ::DebugCategory {
self.category
}
}
impl From<glib::BoolError> for LoggableError {
fn from(bool_error: glib::BoolError) -> Self {
LoggableError {
category: *::CAT_RUST,
bool_error,
}
}
}
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#[cfg(test)]
mod tests {
use super::*;
#[test]
fn error_message() {
let e = ErrorMessage::new(
&::CoreError::Failed,
Some("message"),
Some("debug"),
"filename",
"function",
7,
);
assert_eq!(
format!("{}", e),
"Error Some(\"message\") (Some(\"debug\")) at filename:7"
);
}
#[test]
fn logabble_error() {
let e: LoggableError = glib::BoolError::new("msg", "filename", "function", 7).into();
assert_eq!(
format!("{}", e),
"Error \"GST_RUST\": \"msg\" at filename:7"
);
}
}