assertables

Macro assert_not_match_as_result

source 
macro_rules! assert_not_match_as_result {
    ($matcher:expr, $matchee:expr $(,)?) => { ... };
}
Expand description

Assert an expression (such as a regex) is not a match for an expression (such as a string).

Pseudocode:
¬ a.is_match(b)

  • If true, return Result Ok(()).

  • Otherwise, return Result Err with a diagnostic message.

This macro provides the same statements as assert_not_match, except this macro returns a Result, rather than doing a panic.

This macro is useful for runtime checks, such as checking parameters, or sanitizing inputs, or handling different results in different ways.

§Module macros