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GH-132554: "Virtual" iterators (GH-132555)

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* FOR_ITER now pushes either the iterator and NULL or leaves the iterable and pushes tagged zero

* NEXT_ITER uses the tagged int as the index into the sequence or, if TOS is NULL, iterates as before.
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Mark Shannon 2025-05-27 15:59:45 +01:00 • committed by GitHub
parent 9300a596d3
commit f6f4e8a662
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25 changed files with 713 additions and 618 deletions
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4
Objects/frameobject.c
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@ -1386,6 +1386,10 @@ mark_stacks(PyCodeObject *code_obj, int len)
stacks[j] = next_stack;
break;
case GET_ITER:
next_stack = push_value(pop_value(next_stack), Iterator);
next_stack = push_value(next_stack, Iterator);
stacks[next_i] = next_stack;
break;
case GET_AITER:
next_stack = push_value(pop_value(next_stack), Iterator);
stacks[next_i] = next_stack;