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AliasExpandError

jj_lib::dsl_util

Trait AliasExpandError 

Source 
pub trait AliasExpandError: Sized {
    // Required methods
    fn invalid_arguments(err: InvalidArguments<'_>) -> Self;
    fn recursive_expansion(id: AliasId<'_>, span: Span<'_>) -> Self;
    fn within_alias_expansion(self, id: AliasId<'_>, span: Span<'_>) -> Self;
}
Expand description

Error that may occur during alias substitution.

Required Methods§

Source

fn invalid_arguments(err: InvalidArguments<'_>) -> Self

Unexpected number of arguments, or invalid combination of arguments.

Source

fn recursive_expansion(id: AliasId<'_>, span: Span<'_>) -> Self

Recursion detected during alias substitution.

Source

fn within_alias_expansion(self, id: AliasId<'_>, span: Span<'_>) -> Self

Attaches alias trace to the current error.

Dyn Compatibility§

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementors§