38 lines
875 B
Zig
38 lines
875 B
Zig
const CountBy = struct {
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a: usize,
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const One = CountBy {
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.a = 1,
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};
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pub fn counter(self: &const CountBy) Counter {
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return Counter {
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.i = 0,
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};
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}
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};
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const Counter = struct {
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i: usize,
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pub fn count(self: &Counter) bool {
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self.i += 1;
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return self.i <= 10;
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}
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};
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fn constCount(comptime cb: &const CountBy, comptime unused: u32) void {
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comptime {
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var cnt = cb.counter();
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if(cnt.i != 0) @compileError("Counter instance reused!");
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while(cnt.count()){}
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}
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}
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test "comptime struct return should not return the same instance" {
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//the first parameter must be passed by reference to trigger the bug
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//a second parameter is required to trigger the bug
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const ValA = constCount(&CountBy.One, 12);
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const ValB = constCount(&CountBy.One, 15);
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}
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