2017-01-05 16:57:48 +08:00
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const assert = @import("std").debug.assert;
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2016-12-20 05:45:15 +08:00
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var result: [3]u8 = undefined;
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var index: usize = undefined;
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2018-02-01 11:48:40 +08:00
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fn runSomeErrorDefers(x: bool) !bool {
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2016-12-20 05:45:15 +08:00
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index = 0;
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2017-12-22 13:50:30 +08:00
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defer {result[index] = 'a'; index += 1;}
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2018-01-24 12:08:09 +08:00
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errdefer {result[index] = 'b'; index += 1;}
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2017-12-22 13:50:30 +08:00
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defer {result[index] = 'c'; index += 1;}
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2016-12-20 05:45:15 +08:00
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return if (x) x else error.FalseNotAllowed;
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}
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2017-05-21 22:41:57 +08:00
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test "mixing normal and error defers" {
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2018-01-09 13:07:01 +08:00
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assert(runSomeErrorDefers(true) catch unreachable);
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2016-12-20 05:45:15 +08:00
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assert(result[0] == 'c');
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assert(result[1] == 'a');
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2018-01-08 06:28:20 +08:00
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const ok = runSomeErrorDefers(false) catch |err| x: {
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2016-12-20 05:45:15 +08:00
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assert(err == error.FalseNotAllowed);
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2017-12-22 13:50:30 +08:00
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break :x true;
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2016-12-20 05:45:15 +08:00
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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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2017-05-21 22:41:57 +08:00
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test "break and continue inside loop inside defer expression" {
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testBreakContInDefer(10);
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comptime testBreakContInDefer(10);
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}
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2018-01-25 17:10:11 +08:00
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fn testBreakContInDefer(x: usize) void {
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2017-05-21 22:41:57 +08:00
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defer {
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var i: usize = 0;
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while (i < x) : (i += 1) {
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if (i < 5) continue;
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if (i == 5) break;
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}
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assert(i == 5);
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2017-12-22 13:50:30 +08:00
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}
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2017-05-21 22:41:57 +08:00
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}
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2018-04-24 06:06:33 +08:00
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test "defer and labeled break" {
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var i = usize(0);
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blk: {
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defer i += 1;
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break :blk;
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}
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assert(i == 1);
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}
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