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path: root/lib/Sema/SemaLambda.cpp
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2012-02-10Track whether a function type has a trailing return type as type sugar. Use thisRichard Smith
to pretty-print such function types better, and to fix a case where we were not instantiating templates in lexical order. In passing, move the Variadic bit from Type's bitfields to FunctionProtoType to get the Type bitfields down to 32 bits. Also ensure that we always substitute the return type of a function when substituting explicitly-specified arguments, since that can cause us to bail out with a SFINAE error before we hit a hard error in parameter substitution. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150241 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-10Implement the conversion to a function pointer for lambda expressions,Douglas Gregor
per C++ [expr.prim.lambda]p6. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150236 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-10Extend CXXRecordDecl with a function that determines the mapping fromDouglas Gregor
the variables captured by a lambda to the fields that store the captured values. To be used in IRgen. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150235 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-09Implement return type deduction for lambdas per C++11Douglas Gregor
[expr.prim.lambda]p4, including the current suggested resolution of core isue 975, which allows multiple return statements so long as the types match. ExtWarn when user code is actually making use of this extension. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150168 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-09Restore the appropriate lexical declaration context for a lambda'sDouglas Gregor
function call operator (to the lambda class). This allows us to IRgen calls to simple (non-capturing) lambdas, e.g., [](int i, int j) -> int { return i + j; }(1, 2) Eli will be providing test cases as he brings up more IRgen. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150166 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
2012-02-09Implement C++ [expr.prim.lambda]p2, which bans lambda expressions inDouglas Gregor
unevaluated operands. Be certain that we're marking everything referenced within a capture initializer as odr-used. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150163 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-09Don't complain about the lack of a constructor for a lambda expression. They ↵Douglas Gregor
are constructed in different ways git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150136 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-09Along the error path for lambdas, mark the lambda class as invalid and ↵Douglas Gregor
finalize it git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150130 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
2012-02-08Factor C++11 lambda expressions implementation into a separateDouglas Gregor
file. No functionality change. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150089 91177308-0d34-0410-b5e6-96231b3b80d8