mirror of
https://github.com/apple/swift.git
synced 2025-12-14 20:36:38 +01:00
53 lines
1.7 KiB
C++
53 lines
1.7 KiB
C++
//===--- SmallPtrSetVector.h ----------------------------------------------===//
|
|
//
|
|
// This source file is part of the Swift.org open source project
|
|
//
|
|
// Copyright (c) 2014 - 2021 Apple Inc. and the Swift project authors
|
|
// Licensed under Apache License v2.0 with Runtime Library Exception
|
|
//
|
|
// See https://swift.org/LICENSE.txt for license information
|
|
// See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#ifndef SWIFT_BASIC_SMALLPTRSETVECTOR_H
|
|
#define SWIFT_BASIC_SMALLPTRSETVECTOR_H
|
|
|
|
#include "swift/Basic/LLVM.h"
|
|
#include "llvm/ADT/SetVector.h"
|
|
#include "llvm/ADT/SmallPtrSet.h"
|
|
#include "llvm/ADT/SmallVector.h"
|
|
|
|
namespace swift {
|
|
|
|
/// A SetVector that performs no allocations if smaller than a certain
|
|
/// size. Uses a SmallPtrSet/SmallVector internally.
|
|
template <typename T, unsigned VectorSize, unsigned SetSize = VectorSize>
|
|
class SmallPtrSetVector : public llvm::SetVector<T, SmallVector<T, VectorSize>,
|
|
SmallPtrSet<T, SetSize>> {
|
|
public:
|
|
SmallPtrSetVector() = default;
|
|
|
|
/// Initialize a SmallPtrSetVector with a range of elements
|
|
template <typename It> SmallPtrSetVector(It Start, It End) {
|
|
this->insert(Start, End);
|
|
}
|
|
};
|
|
|
|
} // namespace swift
|
|
|
|
namespace std {
|
|
|
|
/// Implement std::swap in terms of SmallSetVector swap.
|
|
///
|
|
/// This matches llvm's implementation for SmallSetVector.
|
|
template <typename T, unsigned VectorSize, unsigned SetSize = VectorSize>
|
|
inline void swap(swift::SmallPtrSetVector<T, VectorSize, SetSize> &LHS,
|
|
swift::SmallPtrSetVector<T, VectorSize, SetSize> &RHS) {
|
|
LHS.swap(RHS);
|
|
}
|
|
|
|
} // end namespace std
|
|
|
|
#endif
|