5c60d1d902
Escape sequences in documentation comments must not be parsed as a normal string when expanding a macro, otherwise some innocent but invalid-escape-sequence-looking comments will trigger an ICE. Although this commit replaces normal string literals with raw string literals in macro expansion, this shouldn't be much a problem considering documentation comments are converted into attributes before being passed to a macro anyways. Fixes #25929. Fixes #25943.
26 lines
832 B
Rust
26 lines
832 B
Rust
// Copyright 2015 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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// When expanding a macro, documentation attributes (including documentation comments) must be
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// passed "as is" without being parsed. Otherwise, some text will be incorrectly interpreted as
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// escape sequences, leading to an ICE.
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//
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// Related issues: #25929, #25943
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macro_rules! homura {
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(#[$x:meta]) => ()
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}
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homura! {
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/// \madoka \x41
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}
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fn main() { }
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