swig/Examples/test-suite/kwargs_feature.i

%module kwargs_feature

%nocopyctor;
%feature("kwargs");

%rename(myDel) del;
%inline 
{
  struct s { int del; };
}


// Simple class
%extend Foo 
{
  int efoo(int a = 1, int b = 0) {return a + b; }
  static int sfoo(int a = 1, int b = 0) { return a + b; }
}

%newobject Foo::create;

%inline %{

  struct Foo 
  {
    Foo(int a, int b = 0) {}

    virtual int foo(int a = 1, int b = 0) {return a + b; }
    static int statfoo(int a = 1, int b = 0) {return a + b; }
    static int statfoo_onearg(int x = 10) {return x + x; }

    static Foo *create(int a = 1, int b = 0) 
    {
      return new Foo(a, b);
    }

    virtual ~Foo() {
    }
  };
%}


// Templated class
%extend Bar 
{
  T ebar(T a = 1, T b = 0) {return a + b; }
  static T sbar(T a = 1, T b = 0) { return a + b; }
}

%inline %{
  template <typename T> struct Bar 
  {
    Bar(T a, T b = 0){}

    T bar(T a = 1, T b = 0) {return a + b; }
    static T statbar(T a = 1, T b = 0) {return a + b; }

    enum AnEnum {ENUMVAL1, ENUMVAL2};
    void enumIn(AnEnum a = ENUMVAL1) {}
  };

%}

%template(BarInt) Bar<int>;


// Functions
%inline %{
  int foo_fn(int a = 1, int b = 0) {return a + b; }
  
  template<typename T> T templatedfunction(T a = 1, T b = 0) { return a + b; }
%}

%template(templatedfunction) templatedfunction<int>;


// Default args with references
%inline %{
  typedef int size_type;
  
  struct Hello 
  {
    static const size_type hello = 3;
  };
  
  int rfoo( int n = 0, const size_type& x = Hello::hello, const Hello& y = Hello() )
  {
    return n - x;
  }
%}
%{
  const int Hello::hello;
%}
  

// Functions with keywords
%warnfilter(SWIGWARN_PARSE_KEYWORD);
%inline %{
  /* silently rename the parameter names in python */

  int foo_kw(int from = 1, int except = 2) {return from + except; }

  int foo_nu(int from = 1, int = 0) {return from; }

  int foo_mm(int min = 1, int max = 2) {return min + max; }
%}


// Extended constructors
%extend Extending0 {
  Extending0() { return new Extending0(); }
}
%extend Extending1 {
  Extending1(int one) { return new Extending1(); }
}
%extend Extending2 {
  Extending2(int one, const char *two) { return new Extending2(); }
}
%extend ExtendingOptArgs1 {
  ExtendingOptArgs1(int one = 0) { return new ExtendingOptArgs1(); }
}
%extend ExtendingOptArgs2 {
  ExtendingOptArgs2(int one = 0, const char* two = NULL) { return new ExtendingOptArgs2(); }
}

%inline %{
struct Extending0 {};
struct Extending1 {};
struct Extending2 {};
struct ExtendingOptArgs1 {};
struct ExtendingOptArgs2 {};
%}

#ifndef SWIGC

// For strlen/strcpy
%{
#include <string.h>
%}

// Varargs
%warnfilter(SWIGWARN_LANG_VARARGS_KEYWORD) VarargConstructor::VarargConstructor; // Can't wrap varargs with keyword arguments enabled
%warnfilter(SWIGWARN_LANG_VARARGS_KEYWORD) VarargConstructor::vararg_method; // Can't wrap varargs with keyword arguments enabled
%inline %{
struct VarargConstructor {
  char *str;
  VarargConstructor(const char *fmt, ...) {
    str = new char[strlen(fmt) + 1];
    strcpy(str, fmt);
  }
  void vararg_method(const char *fmt, ...) {
    delete [] str;
    str = new char[strlen(fmt) + 1];
    strcpy(str, fmt);
  }
};
%}

#endif // !SWIGC