Function build_remove_whole_ignore

src/code_actions/phpstan/ignore.rs:376–472

Remove the entire `@phpstan-ignore` comment from a line. If the comment is the only content on the line (possibly with leading whitespace), delete the entire line. Otherwise, remove just the comment portion.

(
    content: &str,
    line: u32,
    line_text: &str,
    ignore_pos: usize,
)

/// leading whitespace), delete the entire line.  Otherwise, remove
/// just the comment portion.
fn build_remove_whole_ignore(
    content: &str,
    line: u32,
    line_text: &str,
    ignore_pos: usize,
) -> Option<TextEdit> {
    // Find the start of the comment that contains @phpstan-ignore.
    // Walk backwards from `ignore_pos` to find `//`, `/*`, or `/**`.
    let before = &line_text[..ignore_pos];
    let comment_start = before
        .rfind("//")
        .or_else(|| before.rfind("/*"))
        .unwrap_or(ignore_pos);

    let before_comment = line_text[..comment_start].trim_end();

    if before_comment.is_empty() {
        // The comment is the only thing on this line — delete the whole line.
        let line_count = content.lines().count();
        let next_line = line + 1;

        if (next_line as usize) <= line_count {
            // Delete from start of this line to start of next line.
            Some(TextEdit {
                range: Range {
                    start: Position { line, character: 0 },
                    end: Position {
                        line: next_line,
                        character: 0,
                    },
                },
                new_text: String::new(),
            })
        } else {
            // Last line — delete from end of previous line to end of this line.
            if line > 0 {
                let prev_line_text = content.lines().nth((line - 1) as usize).unwrap_or("");
                Some(TextEdit {
                    range: Range {
                        start: Position {
                            line: line - 1,
                            character: prev_line_text.len() as u32,
                        },
                        end: Position {
                            line,
                            character: line_text.len() as u32,
                        },
                    },
                    new_text: String::new(),
                })
            } else {
                Some(TextEdit {
                    range: Range {
                        start: Position { line, character: 0 },
                        end: Position {
                            line,
                            character: line_text.len() as u32,
                        },