Python static method wrapper changes

- Static method wrappers were using the 'fastproxy' approach by default.
  This is inconsistent with instance method wrappers. The fastproxy approach
  is now turned off by default to be consistent with instance methods.
  Static method wrappers can now also be controlled using the -fastproxy and
  -olddefs options.

  Example:

    struct Klass {
      static int statmethod(int a = 2);
    };

  generates:

  class Klass(object):
      ...
      @staticmethod
      def statmethod(a=2):
          return _example.Klass_statmethod(a)

  instead of:

    class Klass(object):
      ...
      statmethod = staticmethod(_example.Klass_statmethod)

- Modernise wrappers for static methods to use decorator syntax - @staticmethod.

- Add missing runtime test for static class methods and using the actual
  class method.
This commit is contained in:
William S Fulton 2019-01-16 08:21:00 +00:00
commit cf1624ebc4
3 changed files with 47 additions and 5 deletions

View file

@ -4637,10 +4637,12 @@ public:
}
if (shadow) {
if (!Getattr(n, "feature:python:callback") && have_addtofunc(n)) {
bool fast = (fastproxy && !have_addtofunc(n)) || Getattr(n, "feature:callback");
if (!fast || olddefs) {
int kw = (check_kwargs(n) && !Getattr(n, "sym:overloaded")) ? 1 : 0;
String *parms = make_pyParmList(n, false, false, kw);
String *callParms = make_pyParmList(n, false, true, kw);
Printv(f_shadow, "\n", tab4, "@staticmethod", NIL);
Printv(f_shadow, "\n", tab4, "def ", symname, "(", parms, ")", returnTypeAnnotation(n), ":\n", NIL);
if (have_docstring(n))
Printv(f_shadow, tab8, docstring(n, AUTODOC_STATICFUNC, tab8), "\n", NIL);
@ -4649,12 +4651,14 @@ public:
if (have_pythonappend(n)) {
Printv(f_shadow, tab8, "val = ", funcCall(Swig_name_member(NSPACE_TODO, class_name, symname), callParms), "\n", NIL);
Printv(f_shadow, indent_pythoncode(pythonappend(n), tab8, Getfile(n), Getline(n), "%pythonappend or %feature(\"pythonappend\")"), "\n", NIL);
Printv(f_shadow, tab8, "return val\n\n", NIL);
Printv(f_shadow, tab8, "return val\n", NIL);
} else {
Printv(f_shadow, tab8, "return ", funcCall(Swig_name_member(NSPACE_TODO, class_name, symname), callParms), "\n\n", NIL);
Printv(f_shadow, tab8, "return ", funcCall(Swig_name_member(NSPACE_TODO, class_name, symname), callParms), "\n", NIL);
}
Printv(f_shadow, tab4, symname, " = staticmethod(", symname, ")\n", NIL);
} else {
}
// Below may result in a 2nd definition of the method when -olddefs is used. The Python interpreter will use the second definition as it overwrites the first.
if (fast) {
Printv(f_shadow, tab4, symname, " = staticmethod(", module, ".", Swig_name_member(NSPACE_TODO, class_name, symname),
")\n", NIL);
}