64 lines
1.3 KiB
Zig
64 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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fn runSomeErrorDefers(x: bool) !bool {
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index = 0;
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defer {
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result[index] = 'a';
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index += 1;
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}
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errdefer {
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result[index] = 'b';
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index += 1;
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}
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defer {
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result[index] = 'c';
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index += 1;
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}
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return if (x) x else error.FalseNotAllowed;
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}
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test "mixing normal and error defers" {
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assert(runSomeErrorDefers(true) catch unreachable);
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assert(result[0] == 'c');
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assert(result[1] == 'a');
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const ok = runSomeErrorDefers(false) catch |err| x: {
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assert(err == error.FalseNotAllowed);
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break :x 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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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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fn testBreakContInDefer(x: usize) void {
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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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}
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}
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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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