KOS_OP_YIELD

• Style: COUNT. Arg = number of values to package as the yielded value: 0 yields None, 1 yields the single popped value, and N > 1 pops N values and yields them as a tuple.

• Stack: Pops the yielded value(s). Sets KOS_CODE_YIELDS on the code object. The handler freezes the running generator’s span of the dynamic chain into its generator node. A flattened generator, one consumed inside the same evaluator, then hands the value to the consuming frame (a for-each step, a next request, or a yield-from waiting on it) and continues in that frame without stopping the evaluator. A generator run from outside stops the evaluator with the yielded value.

• Invariants: Code is treated as async generator when YIELDS flag set.

• See also: compile/yield; koskari/lib/opcode/YIELD.c.

Example: Yield TOS (arg = 1). Pool: 0 = 100.

index	opcode	arg	arg view	comment
0	CONST	0	0 (100)	stack: […, 100]
1	YIELD	1	1	yield 100; on resume continue