monkey

Ever wanted to tamper with the value of an unexported field? This library lets you create a small patch value which can be applied to modify unexported fields regardless of how deeply nested they are.

Usage

Say you have a struct like so:

type CoolLibrary struct {
	usefulInternalLogs io.Writer
	...
	...
}

But you want access to the internal logs which can't be configured to write to a location of your choice.

You could fork the library and add this feature or just use Monkey to patch this field:

lib := CoolLibraryConstructor()

coolLibraryPatch := struct {
	usefulInternalLogs io.Writer
}{
	os.Stdout
}

monkey.Patch(&lib, &coolLibraryPatch)

Now your useful internal logs will be written to os.Stdout!