Patch Guide

Patch

Feature Overview

This feature enables patching methods to an existing type.

Prerequisite

None.

Sweet Apex Example

public class PatchDemo {
    @patch(String)
    public static String prefix(String s, String prefix) {
        return prefix + s;
    }

    public static void main() {
        String result = 'abc'.prefix('_');
    }
}

Transpiled Apex

public class PatchDemo {
    public static String prefix(String s, String prefix) {
        return prefix + s;
    }
    public static void main() {
        String result = PatchDemo.prefix('abc', '_');
    }
}

Usage

The method annotated with @patch is a patching method.

Patching methods should be public/global static, and they should declare the type to patch on. Besides, the first parameter should accept the instance of the patch class.

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