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https://github.com/rust-lang/rust-clippy
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Handle nested block comments
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commit
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3 changed files with 19 additions and 6 deletions
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@ -1101,19 +1101,18 @@ pub fn clip(tcx: TyCtxt, u: u128, ity: ast::UintTy) -> u128 {
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pub fn without_block_comments(lines: Vec<&str>) -> Vec<&str> {
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let mut without = vec![];
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// naive approach for block comments
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let mut inside_comment = false;
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let mut nest_level = 0;
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for line in lines.into_iter() {
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if line.contains("/*") {
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inside_comment = true;
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nest_level += 1;
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continue;
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} else if line.contains("*/") {
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inside_comment = false;
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nest_level -= 1;
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continue;
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}
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if !inside_comment {
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if nest_level == 0 {
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without.push(line);
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}
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}
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@ -79,11 +79,16 @@ pub enum FooFighter {
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Bar4
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}
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// This should not produce a warning because there is a comment in between
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// This should not produce a warning because the empty line is inside a block comment
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#[crate_type = "lib"]
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/*
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*/
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pub struct S;
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// This should not produce a warning
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#[crate_type = "lib"]
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/* test */
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pub struct T;
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fn main() { }
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@ -15,6 +15,15 @@ fn test_lines_without_block_comments() {
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let result = without_block_comments(vec!["/* rust", "", "*/"]);
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assert!(result.is_empty());
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let result = without_block_comments(vec!["/* one-line comment */"]);
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assert!(result.is_empty());
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let result = without_block_comments(vec!["/* nested", "/* multi-line", "comment", "*/", "test", "*/"]);
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assert!(result.is_empty());
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let result = without_block_comments(vec!["/* nested /* inline /* comment */ test */ */"]);
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assert!(result.is_empty());
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let result = without_block_comments(vec!["foo", "bar", "baz"]);
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assert_eq!(result, vec!["foo", "bar", "baz"]);
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}
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