RecursiveWriteBarrier

Recursive versions of Object>>beReadOnlyObject, Object>>beWritableObject, and Object>>setIsReadOnlyObject for Pharo

To install in Pharo 7, execute the following lines in a playground:

Metacello new
    baseline: 'RecursiveWriteBarrier';
    repository: 'github://khinsen/RecursiveWriteBarrier/src';
    load.