ENH: Here is test for swig module

Tests/SwigTest/CMakeLists.txt

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+SET(language "python")
+
+
+PROJECT(example_${language}_class)
+
+FIND_PACKAGE(SWIG)
+IF(SWIG_FOUND)
+  INCLUDE(${SWIG_USE_FILE})
+
+  IF(${language} MATCHES python)
+    FIND_PACKAGE(PythonLibs)
+    INCLUDE_DIRECTORIES(${PYTHON_INCLUDE_PATH})
+  ENDIF(${language} MATCHES python)
+  IF(${language} MATCHES perl)
+    FIND_PACKAGE(PerlLibs)
+    INCLUDE_DIRECTORIES(${PERL_INCLUDE_PATH})
+    ADD_DEFINITIONS(${PERL_EXTRA_C_FLAGS})
+  ENDIF(${language} MATCHES perl)
+  IF(${language} MATCHES tcl)
+    FIND_PACKAGE(TCL)
+    INCLUDE_DIRECTORIES(${TCL_INCLUDE_PATH})
+  ENDIF(${language} MATCHES tcl)
+  IF(${language} MATCHES ruby)
+    FIND_PACKAGE(Ruby)
+    INCLUDE_DIRECTORIES(${RUBY_INCLUDE_PATH})
+  ENDIF(${language} MATCHES ruby)
+  IF(${language} MATCHES php4)
+    FIND_PACKAGE(PHP4)
+    INCLUDE_DIRECTORIES(${PHP4_INCLUDE_PATH})
+  ENDIF(${language} MATCHES php4)
+  IF(${language} MATCHES pike)
+    FIND_PACKAGE(Pike)
+    INCLUDE_DIRECTORIES(${PIKE_INCLUDE_PATH})
+  ENDIF(${language} MATCHES pike)
+
+  INCLUDE_DIRECTORIES(${CMAKE_CURRENT_SOURCE_DIR})
+
+  SET(CMAKE_SWIG_FLAGS "")
+
+  SET_SOURCE_FILES_PROPERTIES(example.i PROPERTIES CPLUSPLUS ON)
+  SET_SOURCE_FILES_PROPERTIES(example.i PROPERTIES SWIG_FLAGS "-includeall")
+  SWIG_ADD_MODULE(example "${language}"
+    example.i example.cxx)
+  SWIG_LINK_LIBRARIES(example ${PYTHON_LIBRARY})
+ENDIF(SWIG_FOUND)

Tests/SwigTest/example.cxx

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+/* File : example.c */
+
+#include "example.h"
+#define M_PI 3.14159265358979323846
+
+/* Move the shape to a new location */
+void Shape::move(double dx, double dy) {
+  x += dx;
+  y += dy;
+}
+
+int Shape::nshapes = 0;
+
+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;
+}

Tests/SwigTest/example.h

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+/* File : example.h */
+
+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;
+};
+
+class Circle : public Shape {
+private:
+  double radius;
+public:
+  Circle(double r) : radius(r) { };
+  virtual double area(void);
+  virtual double perimeter(void);
+};
+
+class Square : public Shape {
+private:
+  double width;
+public:
+  Square(double w) : width(w) { };
+  virtual double area(void);
+  virtual double perimeter(void);
+};
+
+
+
+
+  

Tests/SwigTest/example.i

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+/* File : example.i */
+%module example
+
+%{
+#include "example.h"
+%}
+
+/* Let's just grab the original header file here */
+%include "example.h"
+

Tests/SwigTest/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 $s\n";
+
+# ----- Access a static member -----
+
+print "\nA total of " . nshapes() . " shapes were created\n";
+
+# ----- Member data access -----
+
+# Set the location of the object.
+# Note: methods in the base class Shape are used since
+# x and y are defined there.
+
+Shape_x_set($c, 20);
+Shape_y_set($c, 30);
+Shape_x_set($s,-10);
+Shape_y_set($s,5);
+
+print "\nHere is their current position:\n";
+print "    Circle = (" . Shape_x_get($c) . "," .  Shape_y_get($c) . ")\n";
+print "    Square = (" . Shape_x_get($s) . "," .  Shape_y_get($s) . ")\n";
+
+# ----- Call some methods -----
+
+print "\nHere are some properties of the shapes:\n";
+foreach (array($c,$s) as $o) {
+      print "    $o\n";
+      print "        area      = " .  Shape_area($o) .  "\n";
+      print "        perimeter = " .  Shape_perimeter($o) . "\n";
+  }
+# Notice how the Shape_area() and Shape_perimeter() functions really
+# invoke the appropriate virtual method on each object.
+
+# ----- Delete everything -----
+
+print "\nGuess I'll clean up now\n";
+
+# Note: this invokes the virtual destructor
+delete_Shape($c);
+delete_Shape($s);
+
+print nshapes() . " shapes remain\n";
+print "Goodbye\n";
+
+?>

Tests/SwigTest/runme.pike

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+import .example;
+
+int main()
+{
+    // ----- Object creation -----
+
+    write("Creating some objects:\n");
+    Circle c = Circle(10.0);
+    write("    Created circle.\n");
+    Square s = Square(10.0);
+    write("    Created square.\n");
+
+    // ----- Access a static member -----
+
+    write("\nA total of " + Shape_nshapes_get() + " shapes were created\n");
+
+    // ----- Member data access -----
+
+    // Set the location of the object
+
+    c->x_set(20.0);
+    c->y_set(30.0);
+
+    s->x_set(-10.0);
+    s->y_set(5.0);
+
+    write("\nHere is their current position:\n");
+    write("    Circle = (%f, %f)\n", c->x_get(), c->y_get());
+    write("    Square = (%f, %f)\n", s->x_get(), s->y_get());
+
+    // ----- Call some methods -----
+
+    write("\nHere are some properties of the shapes:\n");
+    write("   The circle:\n");
+    write("        area      = %f.\n", c->area());
+    write("        perimeter = %f.\n", c->perimeter());
+    write("   The square:\n");
+    write("        area      = %f.\n", s->area());
+    write("        perimeter = %f.\n", s->perimeter());
+
+    write("\nGuess I'll clean up now\n");
+
+    /* See if we can force 's' to be garbage-collected */
+    s = 0;
+    
+    /* Now we should be down to only 1 shape */
+    write("%d shapes remain\n", Shape_nshapes_get());
+    
+    /* Done */
+    write("Goodbye\n");
+    
+    return 0;
+}

Tests/SwigTest/runme.pl

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+# file: runme.pl
+
+# This file illustrates the low-level C++ interface
+# created by SWIG.  In this case, all of our C++ classes
+# get converted into function calls.
+
+use example;
+
+# ----- Object creation -----
+
+print "Creating some objects:\n";
+$c = examplec::new_Circle(10);
+print "    Created circle $c\n";
+$s = examplec::new_Square(10);
+print "    Created square $s\n";
+
+# ----- Access a static member -----
+
+print "\nA total of $examplec::Shape_nshapes shapes were created\n";
+
+# ----- Member data access -----
+
+# Set the location of the object.
+# Note: methods in the base class Shape are used since
+# x and y are defined there.
+
+examplec::Shape_x_set($c, 20);
+examplec::Shape_y_set($c, 30);
+examplec::Shape_x_set($s,-10);
+examplec::Shape_y_set($s,5);
+
+print "\nHere is their current position:\n";
+print "    Circle = (",examplec::Shape_x_get($c),",", examplec::Shape_y_get($c),")\n";
+print "    Square = (",examplec::Shape_x_get($s),",", examplec::Shape_y_get($s),")\n";
+
+# ----- Call some methods -----
+
+print "\nHere are some properties of the shapes:\n";
+foreach $o ($c,$s) {
+      print "    $o\n";
+      print "        area      = ", examplec::Shape_area($o), "\n";
+      print "        perimeter = ", examplec::Shape_perimeter($o), "\n";
+  }
+# Notice how the Shape_area() and Shape_perimeter() functions really
+# invoke the appropriate virtual method on each object.
+
+# ----- Delete everything -----
+
+print "\nGuess I'll clean up now\n";
+
+# Note: this invokes the virtual destructor
+examplec::delete_Shape($c);
+examplec::delete_Shape($s);
+
+print $examplec::Shape_nshapes," shapes remain\n";
+print "Goodbye\n";
+

Tests/SwigTest/runme.py

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+# file: runme.py
+
+# This file illustrates the shadow-class C++ interface generated
+# by SWIG.
+
+import example 
+
+# ----- Object creation -----
+
+print "Creating some objects:"
+c = example.Circle(10)
+print "    Created circle", c
+s = example.Square(10)
+print "    Created square", s
+
+# ----- Access a static member -----
+
+print "\nA total of", example.cvar.Shape_nshapes,"shapes were created"
+
+# ----- Member data access -----
+
+# Set the location of the object
+
+c.x = 20
+c.y = 30
+
+s.x = -10
+s.y = 5
+
+print "\nHere is their current position:"
+print "    Circle = (%f, %f)" % (c.x,c.y)
+print "    Square = (%f, %f)" % (s.x,s.y)
+
+# ----- Call some methods -----
+
+print "\nHere are some properties of the shapes:"
+for o in [c,s]:
+      print "   ", o
+      print "        area      = ", o.area()
+      print "        perimeter = ", o.perimeter()
+
+print "\nGuess I'll clean up now"
+
+# Note: this invokes the virtual destructor
+del c
+del s
+
+s = 3
+print example.cvar.Shape_nshapes,"shapes remain"
+print "Goodbye"
+

Tests/SwigTest/runme.rb

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+# file: runme.rb
+
+# This file illustrates the C++ interface created by SWIG.
+# All of our C++ classes get converted into Ruby classes.
+
+require 'example'
+
+# ----- Object creation -----
+
+print "Creating some objects:\n"
+c = Example::Circle.new(10)
+print "    Created circle #{c}\n"
+s = Example::Square.new(10)
+print "    Created square #{s}\n"
+
+# ----- Access a static member -----
+
+print "\nA total of #{Example::Shape.nshapes} shapes were created\n"
+
+# ----- Member data access -----
+
+# Set the location of the object
+
+# Notice how we can do this using functions specific to
+# the 'Circle' class.
+c.x = 20
+c.y = 30
+
+# Now use the same functions in the base class
+s.x = -10
+s.y = 5
+
+print "\nHere is their current position:\n"
+print "    Circle = (", c.x, ",", c.y, ")\n"
+print "    Square = (", s.x, ",", s.y, ")\n"
+
+# ----- Call some methods -----
+
+print "\nHere are some properties of the shapes:\n"
+for o in [c, s]
+  print "    #{o}\n"
+  print "        area      = ", o.area, "\n"
+  print "        perimeter = ", o.perimeter, "\n"
+end
+# Notice how the Shape#area() and Shape#perimeter() functions really
+# invoke the appropriate virtual method on each object.
+
+print "\n", Example::Shape.nshapes," shapes remain\n"
+print "Goodbye\n"

Tests/SwigTest/runme.tcl

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+# file: runme.tcl
+
+# This file illustrates the high level C++ interface.
+# In this case C++ classes work kind of like Tk widgets
+
+catch { load ./example[info sharedlibextension] example}
+
+# ----- Object creation -----
+
+puts "Creating some objects:"
+Circle c 10
+puts "    Created circle [c cget -this]"
+Square s 10
+puts "    Created square [s cget -this]"
+
+# ----- Access a static member -----
+
+puts "\nA total of $Shape_nshapes shapes were created"
+
+# ----- Member data access -----
+
+# Set the location of the object
+
+c configure -x 20 -y 30
+s configure -x -10 -y 5
+
+puts "\nHere is their current position:"
+puts "    Circle = ([c cget -x], [c cget -y])"
+puts "    Square = ([s cget -x], [s cget -y])"
+
+# ----- Call some methods -----
+
+puts "\nHere are some properties of the shapes:"
+foreach o "c s" {
+      puts "    [$o cget -this]"
+      puts "        area      = [$o area]"
+      puts "        perimeter = [$o perimeter]"
+}
+
+# ----- Delete everything -----
+
+puts "\nGuess I'll clean up now"
+
+# Note: this invokes the virtual destructor
+rename c ""
+rename s ""
+
+puts "$Shape_nshapes shapes remain"
+puts "Goodbye"
+

Tests/SwigTest/runme2.tcl

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+# file: runme2.tcl
+
+# This file illustrates the low-level C++ interface
+# created by SWIG.  In this case, all of our C++ classes
+# get converted into function calls.
+
+catch { load ./example[info sharedlibextension] example}
+
+# ----- Object creation -----
+
+puts "Creating some objects:"
+set c [new_Circle 10]
+puts "    Created circle $c"
+set s [new_Square 10]
+puts "    Created square $s"
+
+# ----- Access a static member -----
+
+puts "\nA total of $Shape_nshapes shapes were created"
+
+# ----- Member data access -----
+
+# Set the location of the object
+# Note: the base class must be used since that's where x and y
+# were declared.
+
+Shape_x_set $c 20
+Shape_y_set $c 30
+Shape_x_set $s -10
+Shape_y_set $s 5
+
+puts "\nHere is their current position:"
+puts "    Circle = ([Shape_x_get $c], [Shape_y_get $c])"
+puts "    Square = ([Shape_x_get $s], [Shape_y_get $s])"
+
+# ----- Call some methods -----
+
+puts "\nHere are some properties of the shapes:"
+foreach o "$c $s" {
+      puts "    $o"
+      puts "        area      = [Shape_area $o]"
+      puts "        perimeter = [Shape_perimeter $o]"
+}
+# Notice how the Shape_area() and Shape_perimeter() functions really
+# invoke the appropriate virtual method on each object.
+
+# ----- Try to cause a type error -----
+
+puts "\nI'm going to try and break the type system"
+
+if { [catch {
+    # Bad script!
+    Square_area $c         # Try to invoke Square method on a Circle
+    puts "    Bad bad SWIG!"
+
+}]} {
+    puts "    Well, it didn't work. Good SWIG."
+}
+
+# ----- Delete everything -----
+
+puts "\nGuess I'll clean up now"
+
+# Note: this invokes the virtual destructor
+delete_Shape $c
+delete_Shape $s
+
+puts "$Shape_nshapes shapes remain"
+puts "Goodbye"
+