Simple example of DISOWN typemap working correctly.

git-svn-id: https://swig.svn.sourceforge.net/svnroot/swig/trunk/SWIG@7411 626c5289-ae23-0410-ae9c-e8d60b6d4f22

Examples/php4/disown/BUILD.sh

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+#! /bin/sh -e
+
+${SWIG:=swig}  -php4 -c++ -make -withcxx example.cxx example.i
+make
+php -d extension_dir=. runme.php4

Examples/php4/disown/Makefile

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+CRUD=*.so *.o php_example.h *_wrap.c* example.php 
+
+all: check
+
+check:
+	./BUILD.sh
+
+# This one is fun!  How do we know what shouldn't be there?
+clean:
+	rm -f $(CRUD)
+
+

Examples/php4/disown/example.cxx

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+/* File : example.c */
+
+#include "example.h"
+#include <math.h>
+#ifndef M_PI
+#  define M_PI 3.14159265358979323846
+#endif
+
+int Shape::get_nshapes() {
+  return nshapes;
+}
+
+/* Move the shape to a new location */
+void Shape::move(double dx, double dy) {
+  x += dx;
+  y += dy;
+}
+
+int Shape::nshapes = 0;
+
+void Circle::set_radius( double r ) {
+  radius = r;
+}
+
+double Circle::area(void) {
+  return M_PI*radius*radius;
+}
+
+double Circle::perimeter(void) {
+  return 2*M_PI*radius;
+}
+
+double Square::area(void) {
+  return width*width;
+}
+
+double Square::perimeter(void) {
+  return 4*width;
+}
+
+ShapeContainer::~ShapeContainer() {
+  iterator i=shapes.begin();
+  for( iterator i = shapes.begin(); i != shapes.end(); ++i ) {
+    delete *i;
+  }
+}
+
+void
+ShapeContainer::addShape( Shape *s ) {
+  shapes.push_back( s );
+}

Examples/php4/disown/example.h

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+/* File : example.h */
+
+#include <vector>
+
+class Shape {
+public:
+  Shape() {
+    nshapes++;
+  }
+  virtual ~Shape() {
+    nshapes--;
+  };
+  double  x, y;   
+  void    move(double dx, double dy);
+  virtual double area(void) = 0;
+  virtual double perimeter(void) = 0;
+  static  int nshapes;
+  static  int get_nshapes();
+};
+
+class Circle : public Shape {
+private:
+  double radius;
+public:
+  Circle(double r) : radius(r) { };
+  ~Circle() { };
+  void set_radius( double r );
+  virtual double area(void);
+  virtual double perimeter(void);
+};
+
+class Square : public Shape {
+private:
+  double width;
+public:
+  Square(double w) : width(w) { };
+  ~Square() { }
+  virtual double area(void);
+  virtual double perimeter(void);
+};
+
+class ShapeContainer {
+private:
+  typedef std::vector<Shape*>::iterator iterator;
+  std::vector<Shape*> shapes;
+public:
+  ShapeContainer() : shapes() {};
+  ~ShapeContainer();
+  void addShape( Shape *s );
+};

Examples/php4/disown/example.i

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+/* File : example.i */
+%module example
+
+%{
+#include "example.h"
+%}
+
+%apply SWIGTYPE *DISOWN {(Shape *s)};
+
+/* Let's just grab the original header file here */
+%include "example.h"
+

Examples/php4/disown/runme.php4

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+<?php
+
+# This file illustrates the low-level C++ interface
+# created by SWIG.  In this case, all of our C++ classes
+# get converted into function calls.
+
+require("example.php");
+
+# ----- Object creation -----
+
+print "Creating some objects:\n";
+$c = new Circle(10);
+print "    Created circle $c\n";
+$s = new Square(10);
+print "    Created square $s\n";
+
+# ----- Create the ShapeContainer ----
+
+$container = new ShapeContainer();
+
+$container->addShape($c);
+$container->addShape($s);
+
+# ----- Access a static member -----
+
+print "\nA total of " . Shape::nshapes() . " shapes were created\n";
+
+# ----- Delete by the old references -----
+# This should not truely delete the shapes because they are now owned
+# by the ShapeContainer.
+
+print "Delete the old references.";
+
+# Note: this invokes the virtual destructor
+$c = NULL;
+$s = NULL;
+
+print "\nA total of " . Shape::nshapes() . " shapes remain\n";
+
+# ----- Delete by the container -----
+# This should truely delete the shapes
+
+print "Delete the container.";
+$container = NULL;
+print "\nA total of " . Shape::nshapes() . " shapes remain\n";
+
+print "Goodbye\n";
+
+?>