macro_rules! check_error {
    ($ctx:ident) => { ... };
    ($cmd:ident,$ctx:ident) => { ... };
    ($ctx:ident,{$($t:tt)*}) => { ... };
    ($cmd:ident,$ctx:ident,{$($t:tt)*}) => { ... };
    ($ctx:ident, >$error_info:ident, {$($t:tt)*}) => { ... };
    ($cmd:ident, $ctx:ident,>$error_info:ident,{$($t:tt)*}) => { ... };
}
Expand description

Macro for parse error check