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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
/// Tell the application to report an error
///
/// If configured by the application, this sent to the application, which should report it to a
/// Sentry-like system. This should only be used for errors that we don't expect to see and will
/// work on fixing if we see a non-trivial volume of them.
///
/// type_name identifies the error. It should be the main text that gets shown to the
/// user and also how the error system groups errors together. It should be in UpperCamelCase
/// form.
///
/// Good type_names require some trial and error, for example:
/// - Start with the error kind variant name
/// - Add more text to distinguish errors more. For example an error code, or an extra word
/// based on inspecting the error details
#[macro_export]
macro_rules! report_error {
($type_name:expr, $($arg:tt)*) => {
let message = std::format!($($arg)*);
::log::warn!("report {}: {}", $type_name, message);
$crate::report_error_to_app($type_name.to_string(), message.to_string());
};
}
/// Log a breadcrumb if we see an `Result::Err` value
///
/// Use this macro to wrap a function call that returns a `Result<>`. If that call returns an
/// error, then we will log a breadcrumb for it. This can be used to track down the codepath where
/// an error happened.
#[macro_export]
macro_rules! trace_error {
($result:expr) => {{
let result = $result;
if let Err(e) = &result {
$crate::breadcrumb!("Saw error: {}", e);
};
result
}};
}
/// Tell the application to log a breadcrumb
///
/// Breadcrumbs are log-like entries that get tracked by the error reporting system. When we
/// report an error, recent breadcrumbs will be associated with it.
#[macro_export]
macro_rules! breadcrumb {
($($arg:tt)*) => {
{
let message = std::format!($($arg)*);
::log::info!("breadcrumb: {}", message);
$crate::report_breadcrumb(
message,
std::module_path!().to_string(),
std::line!(),
std::column!(),
);
}
};
}
/// Function wrapper macro to convert from a component's internal errors to external errors
/// and optionally log and report the error.
#[macro_export]
macro_rules! handle_error {
{ $($tt:tt)* } => {
let body = || {
$($tt)*
};
let result: Result<_> = body();
result.map_err($crate::convert_log_report_error)
}
}
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