Function Guide

Function

Feature Overview

This feature converts a static method to a Func.

For more details on Funcs, please check R.apex.

Prerequisite

You need to include R.apex if you want to enable this feature.

Sweet Apex Example

public class FunctionDemo {
    /**
     * A sample add function
     * */
    @func
    public static Integer add(Integer a, Integer b) {
        return a + b;
    }

    public static void test() {
        System.debug(FuctionDemo.F.add.run(1, 2));
    }
}

Transpiled Apex

public class FunctionDemo {
    /**
     * A sample add function
     * */
    public static Integer add(Integer a, Integer b) {
        return (Integer)F.add.runN(new List{ a, b });
    }
    public static void test() {
        System.debug(FuctionDemo.F.add.run(1, 2));
    }

    public static final Funcs F = new Funcs();

    public class Funcs {
        public Func add = new AddFunc();
    }

    private class AddFunc extends Func {
        public AddFunc() {
            super(2);
        }
        public override Object execN(List args) {
            Integer a = args.get(0) == null ? null : (Integer)args.get(0);
            Integer b = args.get(1) == null ? null : (Integer)args.get(1);

            return a + b;
        }
    }
}
Usage
@func works only with static methods.
To use the generated Funcs, you will have to refer to ClassName.F.funcName.
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