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[red-knot] MDTest: Fix line numbers in error messages (#15932)

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## Summary

Fix line number reporting in MDTest error messages.

## Test Plan

Introduced an error in a Markdown test and made sure that the line in
the error message matches.
This commit is contained in:
David Peter 2025-02-04 14:44:05 +01:00 • committed by GitHub
parent b5e5271adf
commit cc60701b59
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GPG key ID: B5690EEEBB952194
2 changed files with 12 additions and 5 deletions
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2
crates/red_knot_test/src/lib.rs
View file

@ -135,7 +135,7 @@ fn run_test(db: &mut db::Db, test: &parser::MarkdownTest) -> Result<(), Failures
Some(TestFile {
file,
backtick_offset: embedded.md_offset,
backtick_offset: embedded.backtick_offset,
})
})
.collect();

15
crates/red_knot_test/src/parser.rs
View file

@ -148,7 +148,7 @@ pub(crate) struct EmbeddedFile<'s> {
pub(crate) code: &'s str,
/// The offset of the backticks beginning the code block within the markdown file
pub(crate) md_offset: TextSize,
pub(crate) backtick_offset: TextSize,
}
#[derive(Debug)]
@ -306,6 +306,8 @@ impl<'s> Parser<'s> {
if self.cursor.eat_char2('`', '`') {
// We saw the triple-backtick beginning of a code block.
let backtick_offset = self.offset() - "```".text_len();
if self.preceding_blank_lines < 1 && self.explicit_path.is_none() {
bail!("Code blocks must start on a new line and be preceded by at least one blank line.");
}
@ -333,7 +335,7 @@ impl<'s> Parser<'s> {
code = &code[..code.len() - '\n'.len_utf8()];
}
self.process_code_block(lang, code)?;
self.process_code_block(lang, code, backtick_offset)?;
} else {
let code_block_start = self.cursor.token_len();
let line = self.source.count_lines(TextRange::up_to(code_block_start));
@ -414,7 +416,12 @@ impl<'s> Parser<'s> {
Ok(())
}
fn process_code_block(&mut self, lang: &'s str, code: &'s str) -> anyhow::Result<()> {
fn process_code_block(
&mut self,
lang: &'s str,
code: &'s str,
backtick_offset: TextSize,
) -> anyhow::Result<()> {
// We never pop the implicit root section.
let section = self.stack.top();
@ -457,7 +464,7 @@ impl<'s> Parser<'s> {
section,
lang,
code,
md_offset: self.offset(),
backtick_offset,
});
if let Some(current_files) = &mut self.current_section_files {