Macro wproc_macro::syn_err[−][src]

macro_rules! syn_err {
    ($msg : expr) => { ... };
    (_, $msg : expr) => { ... };
    ($span : expr, $msg : expr) => { ... };
    ($span : expr, $msg : expr, $($arg : expr), +) => { ... };
    (_, $msg : expr, $($arg : expr), +) => { ... };
}

Expand description

Macro to generate syn error either with span of a syntax tree element or with default one proc_macro2::Span::call_site().

Sample

syn_err!( "No attr" );