assertables

Macro assert_not_ends_with_as_result

source 
macro_rules! assert_not_ends_with_as_result {
    ($a:expr, $b:expr $(,)?) => { ... };
}
Expand description

Assert an expression (such as a string) does not end with an expression (such as a substring).

Pseudocode:
¬ a.ends_with(b)

  • If true, return Result Ok(()).

  • Otherwise, return Result Err with a diagnostic message.

This macro provides the same statements as assert_not_ends_with, 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