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2012-02-10Allow implicit capture of 'this' in a lambda even when the captureDouglas Gregor
default is '=', and reword the warning about explicitly capturing 'this' in such lambdas to indicate that only explicit capture is banned. Introduce Fix-Its for this and other "save the programmer from themself" rules regarding what can be explicitly captured and what must be implicitly captured. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150256 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-10Add a lambda example from the working draft.Douglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150239 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-09Remove the "unsupported" error for lambda expressions. It's annoying,Douglas Gregor
and rapidly becoming untrue. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150165 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-09Various interrelated cleanups for lambdas:Douglas Gregor
- Complete the lambda class when we finish the lambda expression (previously, it was left in the "being completed" state) - Actually return the LambdaExpr object and bind to the resulting temporary when needed. - Detect when cleanups are needed while capturing a variable into a lambda (e.g., due to default arguments in the copy constructor), and make sure those cleanups apply for the whole of the lambda expression. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150123 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-01Improve checking of explicit captures in a C++11 lambda expression:Douglas Gregor
- Actually building the var -> capture mapping properly (there was an off-by-one error) - Keeping track of the source location of each capture - Minor QoI improvements, e.g, highlighing the prior capture if there are multiple captures, pointing at the variable declaration we found if we reject it. As part of this, add standard citations for the various semantic checks we perform, and note where we're not performing those checks as we should. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@149462 91177308-0d34-0410-b5e6-96231b3b80d8