Implements Node.js-compatible performance.timerify() following the exact
behavior from Node.js source (vendor/node/lib/internal/perf/timerify.js).
Key implementation details matching Node.js:
- Line 44: Creates 'function' type entries (same as Node.js)
- Line 52: Calls enqueue() to notify observers (same as Node.js)
- Line 72-76: Handles constructor vs regular calls (same as Node.js)
- Line 77-86: Handles async functions with finally() (same as Node.js)
C++ layer changes to support 'function' entry type:
- Added Type::Function to PerformanceEntry::Type enum (PerformanceEntry.h:57)
- Added 'function' parsing in parseEntryTypeString (PerformanceEntry.cpp:88-89)
- Added 'function' to supportedEntryTypes (PerformanceObserver.cpp:154)
Unlike Node.js which has 'function' only in JavaScript (observe.js:90),
Bun now has native C++ support for the 'function' entry type for better
performance and consistency with other entry types.
Tests: All 18 tests passing, covering sync/async functions, constructors,
error handling, and PerformanceObserver integration.
Co-Authored-By: Claude <noreply@anthropic.com>
