mirror of
https://github.com/haraldh/chainerror.git
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27 lines
465 B
Rust
27 lines
465 B
Rust
use std::error::Error;
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use std::io;
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use std::result::Result;
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fn do_some_io() -> Result<(), Box<Error>> {
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Err(io::Error::from(io::ErrorKind::NotFound))?;
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Ok(())
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}
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fn func2() -> Result<(), Box<Error>> {
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if let Err(_) = do_some_io() {
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Err("func2 error")?;
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}
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Ok(())
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}
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fn func1() -> Result<(), Box<Error>> {
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if let Err(_) = func2() {
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Err("func1 error")?;
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}
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Ok(())
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}
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fn main() -> Result<(), Box<Error>> {
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func1()
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}
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