Avoid duplicating keys in will/did method calls. #22
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Add accessingValueForKey() that takes a key and a block and wraps the block in willAccessValueForKey()/didAccessValueForKey(); same for will/didChangeValueForKey.
This allows writing:
var foo {
return accessingValueForKey(Keys.Foo) { primitiveFoo }
}
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Add
accessingValueForKey()that takes a key and a block and wraps the block inwillAccessValueForKey()/didAccessValueForKey(); same forwillChangeValueForKey()/didChangeValueForKey().This allows writing: