package org.objectscape

import groovy.transform.CompileStatic;


//@CompileStatic
class Fib {

	static int fibStaticTernary (int n) {
		n >= 2 ? fibStaticTernary(n-1) + fibStaticTernary(n-2) : 1
	}

	static int fibStaticIf (int n) {
		if(n >= 2) fibStaticIf(n-1) + fibStaticIf(n-2) else 1
	}

	int fibTernary (int n) {
		n >= 2 ? fibTernary(n-1) + fibTernary(n-2) : 1
	}

	int fibIf (int n) {
		if(n >= 2) fibIf(n-1) + fibIf(n-2) else 1
	}

	public static void main(String[] args) 
	{
		def warmup = true
		def warmUpIters = 50

		if(warmup) {
			for(i in 0..warmUpIters) {
				print(".")
				Fib.fibStaticTernary(40)
			}
		}

		def start = System.currentTimeMillis()
		Fib.fibStaticTernary(40)
		println("Groovy(static ternary): ${System.currentTimeMillis() - start}ms")

		if(warmup) {
			for(i in 0..warmUpIters) {
				print(".")
				Fib.fibStaticIf(40)
			}
		}

		start = System.currentTimeMillis()
		Fib.fibStaticIf(40)
		println("Groovy(static if): ${System.currentTimeMillis() - start}ms")

		def fib = new Fib()

		if(warmup) {
			for(i in 0..warmUpIters) {
				print(".")
				fib.fibTernary(40)
			}
		}

		start = System.currentTimeMillis()
		fib.fibTernary(40)
		println("Groovy(instance ternary): ${System.currentTimeMillis() - start}ms")

		for(i in 0..warmUpIters) {
			print(".")
			fib.fibIf(40)
		}

		start = System.currentTimeMillis()
		fib.fibIf(40)
		println("Groovy(instance if): ${System.currentTimeMillis() - start}ms")
	}
}