On Thu, 3 Nov 2011, Aldy Hernandez wrote: > +/* Parse a transaction attribute (GCC Extension). > + > + transaction-attribute: > + attributes > + [ [ any-word ] ]
I don't see any syntax production comments including transaction-attribute. Please update the comments to include this in every case where it is permitted. I take it that this is never used in a context where an expression might occur, so you don't have problems with ambiguity? (One known issue with the [[]] syntax is its interaction with ObjC/ObjC++ - it's always unambiguous whether "[[" starts an attribute or an ObjC expression because in the ObjC case the closing "]" and "]" won't be next to each other but in the attribute case they will, but distinguishing the two requires an indefinite amount of lookahead.) -- Joseph S. Myers jos...@codesourcery.com
