zig/test/cases/switch_prong_err_enum.zig
2016-12-26 02:49:30 -05:00

34 lines
584 B
Zig

var read_count: u64 = 0;
fn readOnce() -> %u64 {
read_count += 1;
return read_count;
}
error InvalidDebugInfo;
const FormValue = enum {
Address: u64,
Other: bool,
};
fn doThing(form_id: u64) -> %FormValue {
return switch (form_id) {
17 => FormValue.Address { %return readOnce() },
else => error.InvalidDebugInfo,
}
}
fn switchProngReturnsErrorEnum() {
@setFnTest(this);
%%doThing(17);
assert(read_count == 1);
}
// TODO const assert = @import("std").debug.assert;
fn assert(ok: bool) {
if (!ok)
@unreachable();
}