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bpo-26110: Document `CALL_METHOD_KW` (GH-26159) 

Co-authored-by: Pablo Galindo <Pablogsal@gmail.com>
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Ken Jin 2021-05-20 02:32:06 +08:00 committed by GitHub
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12
Doc/library/dis.rst
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@ -1176,6 +1176,18 @@ All of the following opcodes use their arguments.
.. versionadded:: 3.7 .. versionadded:: 3.7
.. opcode:: CALL_METHOD_KW (argc)
Calls a method in a similar fashion as :opcode:`CALL_METHOD`, but also supports keyword arguments.
*argc* is the number of positional and keyword arguments.
This opcode is designed to be used with :opcode:`LOAD_METHOD`. TOS is a
tuple of keyword argument names. Argument values are below that.
Below them, the two items described in :opcode:`LOAD_METHOD` are on the
stack (either ``self`` and an unbound method object or ``NULL`` and an
arbitrary callable). All of them are popped from the stack and the return value is pushed.
.. versionadded:: 3.11
.. opcode:: MAKE_FUNCTION (flags) .. opcode:: MAKE_FUNCTION (flags)
Pushes a new function object on the stack. From bottom to top, the consumed Pushes a new function object on the stack. From bottom to top, the consumed

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Doc/whatsnew/3.11.rst
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@ -90,7 +90,7 @@ Improved Modules
Optimizations Optimizations
============= =============
* Compiler optimizes now simple C-style formatting with literal format * Compiler now optimizes simple C-style formatting with literal format
containing only format codes ``%s``, ``%r`` and ``%a`` and makes it as containing only format codes ``%s``, ``%r`` and ``%a`` and makes it as
fast as corresponding f-string expression. fast as corresponding f-string expression.
(Contributed by Serhiy Storchaka in :issue:`28307`.) (Contributed by Serhiy Storchaka in :issue:`28307`.)
@ -99,6 +99,20 @@ Optimizations
almost eliminated when no exception is raised. almost eliminated when no exception is raised.
(Contributed by Mark Shannon in :issue:`40222`.) (Contributed by Mark Shannon in :issue:`40222`.)
* Method calls with keywords are now faster due to bytecode
changes which avoid creating bound method instances. Previously, this
optimization was applied only to method calls with purely positional
arguments.
(Contributed by Ken Jin and Mark Shannon in :issue:`26110`, based on ideas
implemented in PyPy.)
CPython bytecode changes
========================
* Added a new :opcode:`CALL_METHOD_KW` opcode. Calls a method in a similar
fashion as :opcode:`CALL_METHOD`, but also supports keyword arguments. Works
in tandem with :opcode:`LOAD_METHOD`.
Build Changes Build Changes
============= =============