17 lines
480 B
TypeScript
17 lines
480 B
TypeScript
// once caused stack overflow
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class Vec2_T<A>
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{
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constructor(public x: A, public y: A) { }
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fmap<B>(f: (a: A) => B): Vec2_T<B> {
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var x:B = f(this.x);
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var y:B = f(this.y);
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var retval: Vec2_T<B> = new Vec2_T(x, y);
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return retval;
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}
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apply<B>(f: Vec2_T<(a: A) => B>): Vec2_T<B> {
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var x:B = f.x(this.x);
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var y:B = f.y(this.y);
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var retval: Vec2_T<B> = new Vec2_T(x, y);
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return retval;
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}
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} |