Hojun-Cho
125f626697
An enum OR-fold under `as` ((m.A|m.B) as u32) was never typed: scruttype resolves IDENT/DOT only, and the post-order restamp then re-derived the folded member literals as untyped_int. The unstamped operand missed cgtypeassert's #27b enum-reinterpret gate and lowered as a phantom tagged assert — unconditional exit 1 at runtime on the wwstage leg. checkisas now types an N_BIN lhs and the N_BIN restamp preserves an existing enum stamp. Graduates the #59.9 stattest pin.
17 lines
481 B
Plaintext
17 lines
481 B
Plaintext
//ww:run
|
|
// #59.9: an enum member OR-fold under `as`. The pre-fix wwstage
|
|
// checker never typed the N_BIN operand, so cgtypeassert's enum
|
|
// reinterpret gate missed and lowered a phantom tagged assert that
|
|
// unconditionally exited 1.
|
|
package main;
|
|
|
|
type mask = enum u32 { A = 1, B = 2, C = 4 };
|
|
|
|
fn main() i32 = {
|
|
let w: u32 = (mask.A | mask.B | mask.C) as u32;
|
|
if (w != 7u32) { return 1; };
|
|
let v: u32 = (mask.A | mask.C) as u32;
|
|
if (v != 5u32) { return 2; };
|
|
return 0;
|
|
};
|