Method eat_if

compiler/src/modules/parser/mod.rs:449–456

(&mut self, kind: TokenType)

    }

    pub(super) fn eat_if(&mut self, kind: TokenType) -> bool {
        if matches!(self.peek(), Some(k) if k == kind) {
            self.advance();
            true
        } else {
            false
        }
    }

    // Comma list with forward-progress guard.
    pub(super) fn comma_list(&mut self, is_end: impl Fn(TokenType) -> bool, mut elem: impl FnMut(&mut Self)) {