48 строки
1.5 KiB
Plaintext
48 строки
1.5 KiB
Plaintext
Additions allow you to add arbitrary C# to the generated classes
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before they are compiled. This can be helpful for providing convenience
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methods or adding pure C# classes.
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== Adding Methods to Generated Classes ==
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Let's say the library being bound has a Rectangle class with a constructor
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that takes an x and y position, and a width and length size. It will look like
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this:
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public partial class Rectangle
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{
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public Rectangle (int x, int y, int width, int height)
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{
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// JNI bindings
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}
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}
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Imagine we want to add a constructor to this class that takes a Point and
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Size structure instead of 4 ints. We can add a new file called Rectangle.cs
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with a partial class containing our new method:
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public partial class Rectangle
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{
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public Rectangle (Point location, Size size) :
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this (location.X, location.Y, size.Width, size.Height)
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{
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}
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}
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At compile time, the additions class will be added to the generated class
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and the final assembly will a Rectangle class with both constructors.
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== Adding C# Classes ==
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Another thing that can be done is adding fully C# managed classes to the
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generated library. In the above example, let's assume that there isn't a
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Point class available in Java or our library. The one we create doesn't need
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to interact with Java, so we'll create it like a normal class in C#.
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By adding a Point.cs file with this class, it will end up in the binding library:
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public class Point
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{
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public int X { get; set; }
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public int Y { get; set; }
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} |