dd6d7f27e4
This improves the coverage instrumentation of closures declared in macros, as seen in `closure_macro.rs` and `closure_macro_async.rs`.
41 lines
1.0 KiB
Rust
41 lines
1.0 KiB
Rust
// edition: 2018
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macro_rules! bail {
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($msg:literal $(,)?) => {
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if $msg.len() > 0 {
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println!("no msg");
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} else {
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println!($msg);
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}
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return Err(String::from($msg));
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};
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}
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macro_rules! on_error {
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($value:expr, $error_message:expr) => {
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$value.or_else(|e| {
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// This closure, which is declared in a macro, should be instrumented.
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let message = format!($error_message, e);
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if message.len() > 0 {
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println!("{}", message);
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Ok(String::from("ok"))
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} else {
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bail!("error");
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}
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})
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};
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}
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fn load_configuration_files() -> Result<String, String> {
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Ok(String::from("config"))
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}
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pub fn main() -> Result<(), String> {
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println!("Starting service");
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let config = on_error!(load_configuration_files(), "Error loading configs: {}")?;
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let startup_delay_duration = String::from("arg");
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let _ = (config, startup_delay_duration);
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Ok(())
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}
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