43 lines
1.7 KiB
Plaintext
43 lines
1.7 KiB
Plaintext
1| |// compile-flags: --edition=2018
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2| |#![feature(no_coverage)]
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3| |
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4| |macro_rules! bail {
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5| | ($msg:literal $(,)?) => {
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6| | if $msg.len() > 0 {
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7| | println!("no msg");
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8| | } else {
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9| | println!($msg);
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10| | }
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11| | return Err(String::from($msg));
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12| | };
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13| |}
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14| |
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15| |macro_rules! on_error {
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16| | ($value:expr, $error_message:expr) => {
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17| | $value.or_else(|e| { // FIXME(85000): no coverage in closure macros
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18| | let message = format!($error_message, e);
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19| | if message.len() > 0 {
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20| | println!("{}", message);
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21| | Ok(String::from("ok"))
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22| | } else {
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23| | bail!("error");
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24| | }
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25| | })
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26| | };
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27| |}
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28| |
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29| 1|fn load_configuration_files() -> Result<String, String> {
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30| 1| Ok(String::from("config"))
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31| 1|}
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32| |
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33| 1|pub fn main() -> Result<(), String> {
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34| 1| println!("Starting service");
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35| 1| let config = on_error!(load_configuration_files(), "Error loading configs: {}")?;
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^0
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36| |
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37| 1| let startup_delay_duration = String::from("arg");
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38| 1| let _ = (config, startup_delay_duration);
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39| 1| Ok(())
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40| 1|}
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