298abbcff8
* disallow variable declaration of `_` * prevent `_` from shadowing itself * prevent read access of `_` closes #1204 closes #1320
29 lines
556 B
Zig
29 lines
556 B
Zig
const std = @import("std");
|
|
const assert = std.debug.assert;
|
|
|
|
test "ignore lval with underscore" {
|
|
_ = false;
|
|
}
|
|
|
|
test "ignore lval with underscore (for loop)" {
|
|
for ([]void{}) |_, i| {
|
|
for ([]void{}) |_, j| {
|
|
break;
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
test "ignore lval with underscore (while loop)" {
|
|
while (optionalReturnError()) |_| {
|
|
while (optionalReturnError()) |_| {
|
|
break;
|
|
} else |_| { }
|
|
break;
|
|
} else |_| { }
|
|
}
|
|
|
|
fn optionalReturnError() !?u32 {
|
|
return error.optionalReturnError;
|
|
}
|