Major optimizations to reduce allocations and improve execution speed:
1. For loops: Replace catch/throw with while + break flag
- Uses while loop with index instead of .each with catch/throw
- Break implemented with flag variable, continue with next
- Result: 18% fewer allocations, 85% faster for simple loops
2. Forloop property inlining
- Inline forloop.index as (__idx__ + 1), forloop.first as (__idx__ == 0), etc.
- Completely eliminates forloop hash allocation when all properties inlinable
- Result: Loop with forloop went from +46% MORE to -16% FEWER allocations
3. LR.to_array helper with EMPTY_ARRAY constant
- Centralized array conversion with frozen empty array for nil
- Avoids allocations for empty collections
4. Inline LR.truthy? calls
- Replace LR.truthy?(x) with (x != nil && x != false)
- Eliminates method call overhead in conditions
5. Keep Time methods available in sandbox for date filter
Overall results:
- Allocations: 3.5% MORE -> 24% FEWER (27% improvement)
- Time: 64% faster -> 89% faster (25% improvement)
Also adds:
- compile_profiler.rb for measuring allocations/performance
- compile_acceptance_test.rb for output equivalence testing
- OPTIMIZATION.md documenting optimization status
