Coverage Report

Created: 2019-07-24 05:18

/Users/buildslave/jenkins/workspace/clang-stage2-coverage-R/llvm/include/llvm/Support/SmallVectorMemoryBuffer.h
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//===- SmallVectorMemoryBuffer.h --------------------------------*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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//
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// This file declares a wrapper class to hold the memory into which an
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// object will be generated.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_EXECUTIONENGINE_OBJECTMEMORYBUFFER_H
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#define LLVM_EXECUTIONENGINE_OBJECTMEMORYBUFFER_H
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#include "llvm/ADT/SmallVector.h"
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#include "llvm/Support/MemoryBuffer.h"
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#include "llvm/Support/raw_ostream.h"
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namespace llvm {
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/// SmallVector-backed MemoryBuffer instance.
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///
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/// This class enables efficient construction of MemoryBuffers from SmallVector
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/// instances. This is useful for MCJIT and Orc, where object files are streamed
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/// into SmallVectors, then inspected using ObjectFile (which takes a
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/// MemoryBuffer).
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class SmallVectorMemoryBuffer : public MemoryBuffer {
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public:
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  /// Construct an SmallVectorMemoryBuffer from the given SmallVector
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  /// r-value.
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  ///
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  /// FIXME: It'd be nice for this to be a non-templated constructor taking a
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  /// SmallVectorImpl here instead of a templated one taking a SmallVector<N>,
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  /// but SmallVector's move-construction/assignment currently only take
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  /// SmallVectors. If/when that is fixed we can simplify this constructor and
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  /// the following one.
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  SmallVectorMemoryBuffer(SmallVectorImpl<char> &&SV)
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      : SV(std::move(SV)), BufferName("<in-memory object>") {
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    init(this->SV.begin(), this->SV.end(), false);
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  }
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  /// Construct a named SmallVectorMemoryBuffer from the given
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  /// SmallVector r-value and StringRef.
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  SmallVectorMemoryBuffer(SmallVectorImpl<char> &&SV, StringRef Name)
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      : SV(std::move(SV)), BufferName(Name) {
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    init(this->SV.begin(), this->SV.end(), false);
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  }
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  // Key function.
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  ~SmallVectorMemoryBuffer() override;
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  StringRef getBufferIdentifier() const override { return BufferName; }
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  BufferKind getBufferKind() const override { return MemoryBuffer_Malloc; }
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private:
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  SmallVector<char, 0> SV;
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  std::string BufferName;
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};
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} // namespace llvm
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#endif