451ce09067
* `noreturn` is the primitive type. * `unreachable` is a control flow keyword. * `@unreachable()` builtin function is deleted. closes #214
60 lines
1.0 KiB
Zig
60 lines
1.0 KiB
Zig
const assert = @import("std").debug.assert;
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test "tryOnErrorUnion" {
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tryOnErrorUnionImpl();
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comptime tryOnErrorUnionImpl();
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}
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fn tryOnErrorUnionImpl() {
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const x = try (const val = returnsTen()) {
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val + 1
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} else |err| switch (err) {
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error.ItBroke, error.NoMem => 1,
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error.CrappedOut => i32(2),
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};
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assert(x == 11);
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}
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error ItBroke;
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error NoMem;
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error CrappedOut;
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fn returnsTen() -> %i32 {
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10
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}
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test "tryWithoutVars" {
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const result1 = try (failIfTrue(true)) {
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1
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} else {
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i32(2)
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};
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assert(result1 == 2);
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const result2 = try (failIfTrue(false)) {
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1
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} else {
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i32(2)
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};
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assert(result2 == 1);
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}
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fn failIfTrue(ok: bool) -> %void {
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if (ok) {
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return error.ItBroke;
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} else {
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return;
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}
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}
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// TODO
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//fn tryThenNotExecutedWithAssignment() {
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// @setFnTest(this);
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//
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// try (_ = failIfTrue(true)) {
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// unreachable;
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// } else |err| {
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// assert(err == error.ItBroke);
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// }
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//}
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