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Issue #20294: Argument Clinic now supports argument parsing for __new__ and

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__init__ functions.
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Larry Hastings 2014-01-18 23:50:21 -08:00
parent b470575e24
commit b7ccb20423
6 changed files with 365 additions and 239 deletions
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23
Doc/howto/clinic.rst
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@ -784,8 +784,8 @@ Argument Clinic converters. On the left is the legacy converter,
on the right is the text you'd replace it with.
========= =================================================================================
``'B'`` ``byte(bitwise=True)``
``'b'`` ``byte``
``'B'`` ``unsigned_char(bitwise=True)``
``'b'`` ``unsigned_char``
``'c'`` ``char``
``'C'`` ``int(types='str')``
``'d'`` ``double``
@ -1275,6 +1275,25 @@ any arguments.
You can still use a self converter, a return converter, and specify
a ``type`` argument to the object converter for ``METH_O``.
tp_new and tp_init functions
----------------------------------------------
You can convert ``tp_new`` and ``tp_init``
functions. Just name them ``__new__`` or
``__init__`` as appropriate. Notes:
* The function name generated for ``__new__`` doesn't end in ``__new__``
like it would by default. It's just the name of the class, converted
into a valid C identifier.
* No ``PyMethodDef`` ``#define`` is generated for these functions.
* ``__init__`` functions return ``int``, not ``PyObject *``.
* Argument Clinic supports any signature for these functions, even though
the parsing function is required to always take ``args`` and ``kwargs``
objects.
The #ifdef trick
----------------------------------------------