Trait proc_macro_error::ResultExt

pub trait ResultExt {
    type Ok;
    fn unwrap_or_exit(self) -> Self::Ok;
    fn expect_or_exit(self, msg: &str) -> Self::Ok;
}

This traits expands Result<T, Into<MacroError>> with some handy shortcuts.

Associated Types

type Ok

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Required methods

fn unwrap_or_exit(self) -> Self::Ok

Behaves like Result::unwrap: if self is Ok yield the contained value, otherwise abort macro execution via span_error!.

fn expect_or_exit(self, msg: &str) -> Self::Ok

Behaves like Result::expect: if self is Ok yield the contained value, otherwise abort macro execution via span_error!. If it aborts then resulting message will be preceded with message.

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Implementations on Foreign Types

impl<T> ResultExt for Result<T, MultiMacroErrors>

type Ok = T

fn unwrap_or_exit(self) -> T

fn expect_or_exit(self, message: &str) -> T

impl<T, E: Into<MacroError>> ResultExt for Result<T, E>

type Ok = T

fn unwrap_or_exit(self) -> T

fn expect_or_exit(self, message: &str) -> T

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Implementors

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