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bpo-46409: Make generators in bytecode by markshannon · Pull Request #30633 · python/cpython · GitHub

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bpo-46409: Make generators in bytecode #30633

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Merged
markshannon merged 20 commits into from
Jan 20, 2022
Conversation 27 Commits 20 Checks 0 Files changed
Merged

bpo-46409: Make generators in bytecode #30633

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bf0394d
Add new instruction to make generator or coroutine from current frame.
markshannon Jan 17, 2022
23877ec
Set line number for RETURN_GENERATOR instruction.
markshannon Jan 17, 2022
381f3d3
Fix magic number
markshannon Jan 17, 2022
c2b141e
Remove unused code.
markshannon Jan 17, 2022
8b73d0d
Rename YIELD_FROM_LOOP to JUMP_NO_INTERRUPT: describe what it does, n…
markshannon Jan 17, 2022
7cb3dad
Document new bytecodes.
markshannon Jan 17, 2022
79b6d11
Add news
markshannon Jan 17, 2022
039b14d
Merge branch 'main' into make-gen-in-bytecode
markshannon Jan 17, 2022
c33abbf
Fix whitespace in opcode.py
markshannon Jan 17, 2022
d105cac
Trim frame and generator by word each.
markshannon Jan 18, 2022
e7c4bf2
Minor refactor of frame.c
markshannon Jan 18, 2022
c080089
Update test.test_sys to account for smaller frames.
markshannon Jan 18, 2022
1b177e3
Skip clearing of old frame when returning a generator.
markshannon Jan 18, 2022
243e441
Treat generator functions as normal functions when evaluating and spe…
markshannon Jan 18, 2022
a79e36b
Attempt to streamline eval-breaker checks a bit.
markshannon Jan 18, 2022
7392593
Revert change in test.
markshannon Jan 19, 2022
17b453a
Remove unused macro.
markshannon Jan 19, 2022
baa1009
Add some clarifications and explanations.
markshannon Jan 19, 2022
44d3f47
Name new instructions in news item.
markshannon Jan 20, 2022
06330b0
Use Py_NewRef
markshannon Jan 20, 2022
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Skip clearing of old frame when returning a generator.
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markshannon committed Jan 18, 2022
commit 1b177e31afd29dedbbfd8ce306b3b296d506ab2d
13 changes: 8 additions & 5 deletions Python/ceval.c
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Original file line number Diff line number Diff line change
Expand Up @@ -5050,20 +5050,23 @@ _PyEval_EvalFrameDefault(PyThreadState *tstate, InterpreterFrame *frame, int thr
_PyFrame_SetStackPointer(frame, stack_pointer);
InterpreterFrame *gen_frame = (InterpreterFrame *)gen->gi_iframe;
_PyFrame_Copy(frame, gen_frame);
frame->stacktop = 0;
Py_INCREF(frame->f_func);
Py_INCREF(frame->f_code);
assert(frame->frame_obj == NULL);
frame->f_locals = NULL;
gen->gi_frame_valid = 1;
gen_frame->is_generator = true;
gen_frame->f_state = FRAME_CREATED;
_Py_LeaveRecursiveCall(tstate);
if (!frame->is_entry) {
frame = cframe.current_frame = pop_frame(tstate, frame);
InterpreterFrame *prev = frame->previous;
_PyThreadState_PopFrame(tstate, frame);
frame = cframe.current_frame = prev;
_PyFrame_StackPush(frame, (PyObject *)gen);
goto resume_frame;
}
/* Make sure that frame is in a valid state */
frame->stacktop = 0;
frame->f_locals = NULL;
Py_INCREF(frame->f_func);
Py_INCREF(frame->f_code);
/* Restore previous cframe and return. */
tstate->cframe = cframe.previous;
tstate->cframe->use_tracing = cframe.use_tracing;
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