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behavior: add test for old bug

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Resolves: #13013
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mlugg 2025-02-06 00:51:44 +00:00
parent 6bd92a21b7
commit 164700740b
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1 changed files with 16 additions and 0 deletions
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16
test/behavior/generics.zig
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@ -589,3 +589,19 @@ comptime {
// should override the result of the previous analysis.
for (0..2) |_| _ = fn (void) void;
}
test "generic parameter resolves to comptime-only type but is not marked comptime" {
const S = struct {
fn foo(comptime T: type, rt_false: bool, func: fn (T) void) T {
if (rt_false) _ = foo(T, rt_false, func);
return 123;
}
fn bar(_: u8) void {}
};
const rt_result = S.foo(u8, false, S.bar);
try expect(rt_result == 123);
const ct_result = comptime S.foo(u8, false, S.bar);
comptime std.debug.assert(ct_result == 123);
}