Data commit

Task/Call-a-function/Luck/call-a-function.luck

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+/* Calling a function that requires no arguments */
+f();;
+
+/* Calling a function with a fixed number of arguments */
+f(1,2);;
+
+/* Calling a function with optional arguments
+   Note: defining the function is cumbersome but will get easier in future versions. */
+f(1,2,new {default with x=3, y=4});;
+
+/* Calling a function with a variable number of arguments */
+printf("%d %d %d %d":char*,2,3,4,5);;
+
+/* Calling a function with named arguments
+   Note: may get syntax sugar in future versions */
+f(1,2,new {default with x=3, y=4});;
+
+/* Using a function in statement context (what?) */
+f();f();f();;
+
+/* Using a function in first-class context within an expression */
+[1,2,3].map(string);;
+
+/* Obtaining the return value of a function */
+let x:int = f();;
+
+/* Distinguishing built-in functions and user-defined functions */
+/* Builtin function i.e. custom calling convention: */
+(@ binop "==" l r);;
+/* User defined function i.e. normal function */
+f(l)(r);;
+
+/* Distinguishing subroutines and functions: both are supported, but compiler is not aware of difference */
+sub();;
+fun();;
+
+/* Stating whether arguments are passed by value or by reference */
+f(value);; /* by value */
+f(&value);; /* by pointer reference */
+f(ref(value));; /* by managed reference */
+
+/* Is partial application possible and how */
+tasty_curry(a)(b)(c)(d)(e)(f)(g)(h)(i)(j)(k)(l)(m)(n)(o)(p)(q)(r)(s)(t)(u)(v)(w)(x)(y)(z);;