struct App { a string b string mut: c int d f32 pub: e f32 f u64 pub mut: g string h byte } ['foo/bar/three'] fn (mut app App) run() { } ['attr2'] fn (mut app App) method2() { } fn (mut app App) int_method1() int { return 0 } fn (mut app App) int_method2() int { return 1 } fn (mut app App) string_arg(x string) { } fn no_lines(s string) string { return s.replace('\n', ' ') } fn test_comptime_for() { println(@FN) methods := ['run', 'method2', 'int_method1', 'int_method2', 'string_arg'] $for method in App.methods { // ensure each method is scoped under a new block in the generated code x := ' method: $method.name | ' + no_lines('$method') println(x) assert method.name in methods } } fn test_comptime_for_with_if() { println(@FN) $for method in App.methods { println(' method: ' + no_lines('$method')) $if method.typ is fn () { assert method.name in ['run', 'method2'] } $if method.return_type is int { assert method.name in ['int_method1', 'int_method2'] } $if method.args[0].typ is string { assert method.name == 'string_arg' } } } fn test_comptime_for_fields() { println(@FN) $for field in App.fields { println(' field: $field.name | ' + no_lines('$field')) $if field.typ is string { assert field.name in ['a', 'b', 'g'] } $if field.typ is f32 { assert field.name in ['d', 'e'] } if field.is_mut { assert field.name in ['c', 'd', 'g', 'h'] } if field.is_pub { assert field.name in ['e', 'f', 'g', 'h'] } if field.is_pub && field.is_mut { assert field.name in ['g', 'h'] } } }