KOS_OP_VAR_ITEM_STORE

• Style: VAR (the object’s name).

• Stack: [..., key, value] → [...]. Set obj[key] = value with the object resolved by name, the key on the stack and the value on the stack.

• Cache: none; a VAR row survives lowering only for a name with no fast slot.

• Compiler form: Shaped by compile/set-item when OBJ is a symbol and KEY is not a feeder, since no fold reaches an object load behind a computed key. May lower to FAST_ITEM_STORE.

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