41 lines
1.0 KiB
Rust
41 lines
1.0 KiB
Rust
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#[macro_export]
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macro_rules! generate_result_logging_extension {
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{
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$name: ident,
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$map_name: ident,
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$map_str_name: ident,
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$map_err_name: ident,
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$map_err_str_name: ident,
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$closure: expr
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} => {
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pub trait InfoResult<T, E> : Sized {
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fn $map_name<F: FnOnce(&T) -> String>(self, f: F) -> Self;
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fn $map_str_name(self, s: &str) -> Self {
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self.$map_name(|_| format!("{}", s))
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}
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fn $map_err_name<F: FnOnce(&E) -> String>(self, f: F) -> Self;
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fn $map_err_str_name(self, s: &str) -> Self {
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self.$map_err_name(|_| format!("{}", s))
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}
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}
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impl<T, E> InfoResult<T, E> for Result<T, E> {
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fn $map_name<F: FnOnce(&T) -> String>(self, f: F) -> Self {
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self.map(|x| { $closure(f(&x)); x })
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}
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fn $map_err_name<F: FnOnce(&E) -> String>(self, f: F) -> Self {
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self.map_err(|e| { $closure(f(&e)); e })
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}
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}
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}
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}
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