/* Object property allocation layout has implications for memory and code * footprint and generated code size/speed. The best layout also depends * on whether the platform has alignment requirements or benefits from * having mostly aligned accesses. */ #undef DUK_USE_HOBJECT_LAYOUT_1 #undef DUK_USE_HOBJECT_LAYOUT_2 #undef DUK_USE_HOBJECT_LAYOUT_3 #if defined(DUK_USE_UNALIGNED_ACCESSES_POSSIBLE) && (DUK_USE_ALIGN_BY == 1) /* On platforms without any alignment issues, layout 1 is preferable * because it compiles to slightly less code and provides direct access * to property keys. */ #define DUK_USE_HOBJECT_LAYOUT_1 #else /* On other platforms use layout 2, which requires some padding but * is a bit more natural than layout 3 in ordering the entries. Layout * 3 is currently not used. */ #define DUK_USE_HOBJECT_LAYOUT_2 #endif