/trunk/Examples/d/class/d1/runme.d
D | 58 lines | 30 code | 14 blank | 14 comment | 0 complexity | bc9618b7f36dbcfa535334b0f5c1aea8 MD5 | raw file
Possible License(s): LGPL-2.1, Cube, GPL-3.0, 0BSD, GPL-2.0
- // This example illustrates how C++ classes can be used from D using SWIG.
- // The D class gets mapped onto the C++ class and behaves as if it is a D class.
- module runme;
- import tango.io.Stdout;
- import example;
- void main() {
- // ----- Object creation -----
- Stdout( "Creating some objects:" ).newline;
- {
- scope Square s = new Square(10);
- scope Circle c = new Circle(10);
- // ----- Access a static member -----
- Stdout.format( "{} shapes were created.", Shape.nshapes ).newline;
- // ----- Member data access -----
- // 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
- Shape shape = s;
- shape.x = -10;
- shape.y = 5;
- Stdout( "\nHere is their current position:" ).newline;
- Stdout.format( " Circle = ( {}, {} )", c.x, c.y ).newline;
- Stdout.format( " Square = ( {}, {} )", s.x, s.y ).newline;
- // ----- Call some methods -----
- Stdout( "\nHere are some properties of the shapes:" ).newline;
- Shape[] shapes = [ cast(Shape) c, cast(Shape) s ];
- foreach ( currentShape; shapes )
- {
- Stdout.format( " {}", currentShape.classinfo.name ).newline;
- Stdout.format( " area = {}", currentShape.area() ).newline;
- Stdout.format( " perimeter = {}", currentShape.perimeter() ).newline;
- }
- // Notice how the area() and perimeter() functions really
- // invoke the appropriate virtual method on each object.
- // ----- Delete everything -----
- Stdout( "\nGuess I'll clean up now:" ).newline;
- // Note: when this using scope is exited the D destructors are called which
- // in turn call the C++ destructors.
- }
- Stdout.format( "{} shapes remain", Shape.nshapes ).newline;
- Stdout( "\nGoodbye!" ).newline;
- }