1a8cdc0f2f
Any documentation comments that contain raw-string-looking sequences may pretty-print invalid code when expanding them, as the current logic always uses the `r"literal"` form, without appending any `#`s. This commit calculates the minimum number of `#`s required to wrap a comment correctly and appends `#`s appropriately. Fixes #27489.
40 lines
1.1 KiB
Rust
40 lines
1.1 KiB
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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// The number of `#`s used to wrap the documentation comment should differ regarding the content.
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//
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// Related issue: #27489
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macro_rules! homura {
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($x:expr, #[$y:meta]) => (assert_eq!($x, stringify!($y)))
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}
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fn main() {
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homura! {
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r#"doc = r" Madoka""#,
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/// Madoka
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};
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homura! {
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r##"doc = r#" One quote mark: ["]"#"##,
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/// One quote mark: ["]
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};
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homura! {
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r##"doc = r#" Two quote marks: [""]"#"##,
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/// Two quote marks: [""]
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};
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homura! {
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r#####"doc = r####" Raw string ending sequences: ["###]"####"#####,
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/// Raw string ending sequences: ["###]
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};
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}
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