justinfagnani/index.html

## index.html
<!DOCTYPE html>
<html>
<head>
	<meta charset="utf-8"/>
	<title>Directive Implementations</title>
	<script src="https://cdnjs.cloudflare.com/ajax/libs/benchmark/1.0.0/benchmark.min.js"></script>
	<script src="./suite.js"></script>
</head>
<body>
	<h1>Open the console to view the results</h1>
	<h2><code>cmd + alt + j</code> or <code>ctrl + alt + j</code></h2>
</body>
</html>

## suite.js
"use strict";

(function (factory) {
	if (typeof Benchmark !== "undefined") {
		factory(Benchmark);
	} else {
		factory(require("benchmark"));
	}
})(function (Benchmark) {
	var suite = new Benchmark.Suite;

	Benchmark.prototype.setup = function () {
		const directives = new WeakMap();
		function directive(f) {
		    return (...args) => {
		        const d = f(...args);
		        directives.set(d, true);
		        return d;
		    };
		}
		const adderDirective = directive(x => {
		    return y => x + y;
		});

		function opaque(f, inner) {
		    return (...args) => {
		        return {inner, value: f(...args), __isDirective: true};
		    };
		}

		const adderOpaque = opaque((x) => {
		    return x;
		}, (x, y) => {
		    return x + y;
		});


		function directive2(f) {
		    return (...args) => {
		        const d = f(...args);
		        d.__isDirective = true;
		        return d;
		    };
		}
		const adderDirective2 = directive2(x => {
		    return y => x + y;
		});


		function directive3(f) {
		    return (...args) => {
		        return {
		            __isDirective: true,
		            run: f(...args),
		        };
		    };
		}
		const adderDirective3 = directive3(x => {
		    return y => x + y;
		});

		let i = 0;
	};


	suite.add("Returning closure, branded with WeakMap", function () {
		// Returning closure, branded with WeakMap
		const add = adderDirective(1);
		if (directives.has(add)) {
		  i += add(2);
		}
	});

	suite.add("Returning object", function () {
		// Returning object
		const add = adderOpaque(1);
		if (add.__isDirective) {
		  const inner = add.inner;
		  i += inner(add.value, 2);
		}
	});

	suite.add("Returning closure, branded with property", function () {
		// Returning closure, branded with property
		const add = adderDirective2(1);
		if (add.__isDirective) {
		  i += add(2);
		}
	});

	suite.add("Returning object with reference to closure, branded with property", function () {
		// Returning object with reference to closure, branded with property
		const add = adderDirective3(1);
		if (add.__isDirective) {
		  i += add.run(2);
		}
	});

	suite.on("cycle", function (evt) {
		console.log(" - " + evt.target);
	});

	suite.on("complete", function (evt) {
		console.log(new Array(30).join("-"));

		var results = evt.currentTarget.sort(function (a, b) {
			return b.hz - a.hz;
		});

		results.forEach(function (item) {
			console.log((idx + 1) + ". " + item);
		});
	});

	console.log("Directive Implementations");
	console.log(new Array(30).join("-"));
	suite.run();
});
	<!DOCTYPE html>
	<html>
	<head>
	<meta charset="utf-8"/>
	<title>Directive Implementations</title>
	<script src="https://cdnjs.cloudflare.com/ajax/libs/benchmark/1.0.0/benchmark.min.js"></script>
	<script src="./suite.js"></script>
	</head>
	<body>
	<h1>Open the console to view the results</h1>
	<h2><code>cmd + alt + j</code> or <code>ctrl + alt + j</code></h2>
	</body>
	</html>
	"use strict";

	(function (factory) {
	if (typeof Benchmark !== "undefined") {
	factory(Benchmark);
	} else {
	factory(require("benchmark"));
	}
	})(function (Benchmark) {
	var suite = new Benchmark.Suite;

	Benchmark.prototype.setup = function () {
	const directives = new WeakMap();
	function directive(f) {
	return (...args) => {
	const d = f(...args);
	directives.set(d, true);
	return d;
	};
	}
	const adderDirective = directive(x => {
	return y => x + y;
	});

	function opaque(f, inner) {
	return (...args) => {
	return {inner, value: f(...args), __isDirective: true};
	};
	}

	const adderOpaque = opaque((x) => {
	return x;
	}, (x, y) => {
	return x + y;
	});


	function directive2(f) {
	return (...args) => {
	const d = f(...args);
	d.__isDirective = true;
	return d;
	};
	}
	const adderDirective2 = directive2(x => {
	return y => x + y;
	});


	function directive3(f) {
	return (...args) => {
	return {
	__isDirective: true,
	run: f(...args),
	};
	};
	}
	const adderDirective3 = directive3(x => {
	return y => x + y;
	});

	let i = 0;
	};


	suite.add("Returning closure, branded with WeakMap", function () {
	// Returning closure, branded with WeakMap
	const add = adderDirective(1);
	if (directives.has(add)) {
	i += add(2);
	}
	});

	suite.add("Returning object", function () {
	// Returning object
	const add = adderOpaque(1);
	if (add.__isDirective) {
	const inner = add.inner;
	i += inner(add.value, 2);
	}
	});

	suite.add("Returning closure, branded with property", function () {
	// Returning closure, branded with property
	const add = adderDirective2(1);
	if (add.__isDirective) {
	i += add(2);
	}
	});

	suite.add("Returning object with reference to closure, branded with property", function () {
	// Returning object with reference to closure, branded with property
	const add = adderDirective3(1);
	if (add.__isDirective) {
	i += add.run(2);
	}
	});

	suite.on("cycle", function (evt) {
	console.log(" - " + evt.target);
	});

	suite.on("complete", function (evt) {
	console.log(new Array(30).join("-"));

	var results = evt.currentTarget.sort(function (a, b) {
	return b.hz - a.hz;
	});

	results.forEach(function (item) {
	console.log((idx + 1) + ". " + item);
	});
	});

	console.log("Directive Implementations");
	console.log(new Array(30).join("-"));
	suite.run();
	});