Commit Graph

4 Commits

Author SHA1 Message Date
Douglas Gregor f02455e5ee Add various tests for captures and the reaching scope of the lambda
expression. Implement C++11 [expr.prim.lambda]p12's requirement that
capturing a variable will odr-use it.

llvm-svn: 150237
2012-02-10 09:26:04 +00:00
Douglas Gregor 656bc62a73 Remove the "unsupported" error for lambda expressions. It's annoying,
and rapidly becoming untrue.

llvm-svn: 150165
2012-02-09 08:26:42 +00:00
Douglas Gregor 8c50e7c5e3 Various interrelated cleanups for lambdas:
- 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.
    

llvm-svn: 150123
2012-02-09 00:47:04 +00:00
Douglas Gregor 53a9bdf17e Improve checking of explicit captures in a C++11 lambda expression:
- 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.

llvm-svn: 149462
2012-02-01 01:18:43 +00:00