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Adopt llvm::function_ref for callbacks that aren't persisted.

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...removing a few other constructs that were doing the same thing
(mostly from me).

No functionality change.

Swift SVN r23294
This commit is contained in:
Jordan Rose
2014-11-13 00:19:03 +00:00
parent 1bbe784d51
commit 5ad871ecd6
6 changed files with 39 additions and 73 deletions
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22
include/swift/Basic/STLExtras.h
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@@ -102,28 +102,6 @@ inline void for_each3(const Container1 &c1, const Container2 &c2,
/// @}
/// @{
/// Declares a member \c type that is a std::function compatible with the given
/// callable type.
///
/// \tparam T A callable type, such as a lambda.
template <typename T>
struct as_function : public as_function<decltype(&T::operator())> {};
template <typename L, typename R, typename... Args>
struct as_function<R(L::*)(Args...) const> {
using type = std::function<R(Args...)>;
};
/// @}
/// Returns a std::function that can call a lambda without copying it.
template <typename L>
static typename as_function<L>::type makeStackLambda(const L &theLambda) {
return std::cref(theLambda);
}
/// A range of iterators.
template<typename Iterator>
class IteratorRange {