38 lines
1.2 KiB
Rust
38 lines
1.2 KiB
Rust
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// Copyright 2013 The Rust Project Developers. See the COPYRIGHT
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// file at the top-level directory of this distribution and at
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// http://rust-lang.org/COPYRIGHT.
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//
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// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
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// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
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// option. This file may not be copied, modified, or distributed
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// except according to those terms.
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// compile-flags:-Z extra-debug-info
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// debugger:break zzz
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// debugger:run
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// debugger:finish
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// debugger:print first
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// check:$1 = {<No data fields>}
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// debugger:print second
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// check:$2 = {<No data fields>}
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enum ANilEnum {}
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enum AnotherNilEnum {}
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// I (mw) am not sure this test case makes much sense...
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// Also, it relies on some implementation details:
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// 1. That empty enums as well as '()' are represented as empty structs
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// 2. That gdb prints the string "{<No data fields>}" for empty structs (which may change some time)
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fn main() {
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unsafe {
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let first : ANilEnum = std::cast::transmute(());
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let second : AnotherNilEnum = std::cast::transmute(());
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zzz();
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}
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}
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fn zzz() {()}
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