6wunderkinder/CoreTextToy — comment on commit 4952489994d7ab09a5f951d38a87c79b4b3d4f25
File: Source/CCoreTextLabel.m line 433
By schwa:

Same thing for theMutableText.

They're used in a block - but that block is _NOT_concurrent and the lifetime of the block is the same as the lifetime of the variables.