54 lines
1.3 KiB
Zig
54 lines
1.3 KiB
Zig
const assert = @import("std").debug.assert;
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var result: [3]u8 = undefined;
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var index: usize = undefined;
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error FalseNotAllowed;
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fn runSomeErrorDefers(x: bool) -> %bool {
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index = 0;
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defer {result[index] = 'a'; index += 1;};
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%defer {result[index] = 'b'; index += 1;};
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defer {result[index] = 'c'; index += 1;};
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return if (x) x else error.FalseNotAllowed;
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}
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fn runSomeMaybeDefers(x: bool) -> ?bool {
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index = 0;
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defer {result[index] = 'a'; index += 1;};
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?defer {result[index] = 'b'; index += 1;};
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defer {result[index] = 'c'; index += 1;};
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return if (x) x else null;
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}
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fn mixingNormalAndErrorDefers() {
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@setFnTest(this);
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assert(%%runSomeErrorDefers(true));
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assert(result[0] == 'c');
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assert(result[1] == 'a');
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const ok = runSomeErrorDefers(false) %% |err| {
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assert(err == error.FalseNotAllowed);
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true
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};
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assert(ok);
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assert(result[0] == 'c');
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assert(result[1] == 'b');
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assert(result[2] == 'a');
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}
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fn mixingNormalAndMaybeDefers() {
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@setFnTest(this);
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assert(??runSomeMaybeDefers(true));
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assert(result[0] == 'c');
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assert(result[1] == 'a');
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const ok = runSomeMaybeDefers(false) ?? true;
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assert(ok);
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assert(result[0] == 'c');
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assert(result[1] == 'b');
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assert(result[2] == 'a');
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}
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