Method compute_edit_range

src/completion/array_shape.rs:447–476

Compute the `TextEdit` range for an array key completion. The range starts at `key_start_col` (right after the opening quote or `[`) and extends past any trailing auto-inserted characters (closing quote + `]`) that the IDE may have inserted. Returns `(range, trailing_count)` where `trailing_count` is the number of characters consumed after the cursor.

(
        &self,
        ctx: &ArrayKeyContext,
        content: &str,
        position: Position,
    )

    /// Returns `(range, trailing_count)` where `trailing_count` is the
    /// number of characters consumed after the cursor.
    fn compute_edit_range(
        &self,
        ctx: &ArrayKeyContext,
        content: &str,
        position: Position,
    ) -> (Range, usize) {
        let lines: Vec<&str> = content.lines().collect();
        let line_idx = position.line as usize;
        let trailing_count = if line_idx < lines.len() {
            let line = lines[line_idx];
            let chars: Vec<char> = line.chars().collect();
            let cursor_col = position.character as usize;
            count_trailing_close_chars(&chars, cursor_col, ctx.quote_char)
        } else {
            0
        };

        let range = Range {
            start: Position {
                line: position.line,
                character: ctx.key_start_col,
            },
            end: Position {
                line: position.line,
                character: position.character + trailing_count as u32,
            },
        };

        (range, trailing_count)
    }

    /// Walk through `prefix_keys` to resolve the inner type of a nested
    /// array shape.