KOS_OP_ITEM_FAST_CLEAR

• Style: FASTVAR (the key’s slot).

• Stack: [..., obj] → [...]. Delete obj[key] with the object on the stack and the key read from a fast slot.

• Compiler form: The lowering of ITEM_VAR_CLEAR: every named operand has a fast slot.

• Implementation: koskari/lib/opcode/ITEM_FAST_CLEAR.c