Prepare the Signature Module For More Applications

This is the preparation for a number of planned applications
and extensions using the signature module.
This general overhaul contains:

- Extraction of signature enumerations into enum_sigs.py,

- a list of current keyword errors in arguments which are unsolved
  in shiboken, but temporarily fixed in parser.py (too many for XML),

- fix spurious duplications in multiple signatures

- corrections for keyword errors in function names which cannot be
  fixed by Python (quite few),

- fixing "..." arguments into "*args",

- supporting the "slot wrapper" type. This is necessary for
  methods like "__add__", "__mul__" etc.

- Create an extra function "get_signature" that has a parameter to
  modify the appearance, i.e. without self, without returntype, etc.

Task-number: PYSIDE-510
Change-Id: If16f7bf02c6e7cbbdc970058bb630ea4db2b854a
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>

1 files changed, 24 insertions, 3 deletions

diff --git a/sources/shiboken2/libshiboken/pep384impl.cpp b/sources/shiboken2/libshiboken/pep384impl.cpp
index 4481f1cdd..18094c5c0 100644
--- a/sources/shiboken2/libshiboken/pep384impl.cpp
+++ b/sources/shiboken2/libshiboken/pep384impl.cpp
@@ -398,7 +398,10 @@ PyRun_String(const char *str, int start, PyObject *globals, PyObject *locals)
     return ret;
 }
 
+#endif // Py_LIMITED_API
+
 // This is only a simple local helper that returns a computed variable.
+// Used also in Python 2.
 static PyObject *
 PepRun_GetResult(const char *command, const char *resvar)
 {
@@ -415,6 +418,8 @@ PepRun_GetResult(const char *command, const char *resvar)
     return res;
 }
 
+#ifdef Py_LIMITED_API
+
 /*****************************************************************************
  *
  * Support for classobject.h
@@ -499,13 +504,26 @@ PyTypeObject *PepStaticMethod_TypePtr = NULL;
 
 static PyTypeObject *getStaticMethodType(void)
 {
+    // this works for Python 3, only
+    //    "StaticMethodType = type(str.__dict__['maketrans'])\n";
     static const char prog[] =
-        "StaticMethodType = type(str.__dict__['maketrans'])\n";
-    return (PyTypeObject *) PepRun_GetResult(prog, "StaticMethodType");
+        "from xxsubtype import spamlist\n"
+        "StaticMethod_Type = type(spamlist.__dict__['staticmeth'])\n";
+    return (PyTypeObject *) PepRun_GetResult(prog, "StaticMethod_Type");
 }
-
 #endif // Py_LIMITED_API
 
+#if PY_VERSION_HEX < 0x03000000
+PyTypeObject *PepMethodDescr_TypePtr = NULL;
+
+static PyTypeObject *getMethodDescrType(void)
+{
+    static const char prog[] =
+        "MethodDescr_Type = type(str.split)\n";
+    return (PyTypeObject *) PepRun_GetResult(prog, "MethodDescr_Type");
+}
+#endif
+
 /*****************************************************************************
  *
  * Common newly needed functions
@@ -630,6 +648,9 @@ Pep384_Init()
     PepFunction_TypePtr = getFunctionType();
     PepStaticMethod_TypePtr = getStaticMethodType();
 #endif
+#if PY_VERSION_HEX < 0x03000000
+    PepMethodDescr_TypePtr = getMethodDescrType();
+#endif
 }
 
 } // extern "C"