pub fn dropped_grammar_features(
expected: &Grammar,
actual: &Grammar,
) -> Result<Vec<String>, GrammarLoweringError>Expand description
The features of expected that actual does not carry, as readable
details: the rule names and their order, the start rule, and every rule’s
kind, definition and documentation.
§Errors
Returns a GrammarLoweringError when a rule definition cannot be
normalized for comparison.