14. JSX のコード例(アフィン変換)
class Point {
var x : number, y : number;
function constructor(x : number, y : number) {
this.x = x;
this.y = y;
}
}
class Matrix {
var a11 : number, a12 : number, a13 : number
var a21 : number, a22 : number, a23 : number;
function constructor(a11 : number, a12 : number, (省略)) {
this.a11 = a11;
(省略)
}
function transform(pt : Point) : Point {
return new Point(
this.a11 * pt.x + this.a12 * pt.y + this.a13,
this.a21 * pt.x + this.a22 * pt.y + this.a23);
}
}
JSX の現在と未来
14
Copyright (C) 2013 DeNA Co.,Ltd. All Rights Reserved.
15. JSX のコード例(アフィン変換)
JSX のソースコード:
new Matrix(1, 0, 0, 0, 2, 0).transform(new Point(x, y))
生成される JavaScript:
{x: x + 0 * y, y: 0 * x + 2 * y}
// Note: 0 * n cannot be folded since it is equiv. to: isNaN(n) ? NaN : 0
JSX の現在と未来
15
Copyright (C) 2013 DeNA Co.,Ltd. All Rights Reserved.