deno

25d867ec - feat(runtime): add syntax highlighting for error stack trace source lines

feat(runtime): add syntax highlighting for error stack trace source lines Add a lightweight JS/TS syntax highlighter for source code lines displayed in error stack traces. Uses a simple character-scanning lexer (inspired by Bun's QuickAndDirtyJavaScriptSyntaxHighlighter) that works on arbitrary single lines without requiring syntactically valid code. Features: - Keywords in bright blue, TS type keywords in cyan, strings in green, numbers/booleans in yellow, comments in gray, null in bold, undefined in gray (matching console.log inspect colors) - Template literal interpolation highlighting - Line number gutter prefix (e.g. "42 | source code here") - Error class name in red bold, "(in promise)" in gray - Bold red caret for error position indicator Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>