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bpo-44525: Copy free variables in bytecode to allow calls to inner functions to be specialized (GH-29595)

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* Make internal APIs that take PyFrameConstructor take a PyFunctionObject instead.

* Add reference to function to frame, borrow references to builtins and globals.

* Add COPY_FREE_VARS instruction to allow specialization of calls to inner functions.
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Mark Shannon 2021-11-23 09:53:24 +00:00 • committed by GitHub
parent d82f2caf94
commit 135cabd328
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25 changed files with 268 additions and 156 deletions
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4
Lib/test/test_code.py
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@ -141,6 +141,8 @@ from test.support import (cpython_only,
check_impl_detail, requires_debug_ranges,
gc_collect)
from test.support.script_helper import assert_python_ok
from opcode import opmap
COPY_FREE_VARS = opmap['COPY_FREE_VARS']
def consts(t):
@ -185,7 +187,7 @@ class CodeTest(unittest.TestCase):
def new_code(c):
'''A new code object with a __class__ cell added to freevars'''
return c.replace(co_freevars=c.co_freevars + ('__class__',))
return c.replace(co_freevars=c.co_freevars + ('__class__',), co_code=bytes([COPY_FREE_VARS, 1])+c.co_code)
def add_foreign_method(cls, name, f):
code = new_code(f.__code__)