mirror of
https://github.com/Shopify/liquid.git
synced 2026-01-26 20:19:26 +00:00
c5a44be104
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