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to reflect the new license. We understand that people may be surprised that we're moving the header entirely to discuss the new license. We checked this carefully with the Foundation's lawyer and we believe this is the correct approach. Essentially, all code in the project is now made available by the LLVM project under our new license, so you will see that the license headers include that license only. Some of our contributors have contributed code under our old license, and accordingly, we have retained a copy of our old license notice in the top-level files in each project and repository. llvm-svn: 351636
47 lines
1.3 KiB
C++
47 lines
1.3 KiB
C++
//==- raw_sha1_ostream.h - raw_ostream that compute SHA1 --*- 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 defines the raw_sha1_ostream class.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_SUPPORT_RAW_SHA1_OSTREAM_H
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#define LLVM_SUPPORT_RAW_SHA1_OSTREAM_H
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#include "llvm/ADT/ArrayRef.h"
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#include "llvm/Support/SHA1.h"
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#include "llvm/Support/raw_ostream.h"
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namespace llvm {
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/// A raw_ostream that hash the content using the sha1 algorithm.
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class raw_sha1_ostream : public raw_ostream {
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SHA1 State;
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/// See raw_ostream::write_impl.
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void write_impl(const char *Ptr, size_t Size) override {
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State.update(ArrayRef<uint8_t>((const uint8_t *)Ptr, Size));
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}
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public:
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/// Return the current SHA1 hash for the content of the stream
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StringRef sha1() {
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flush();
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return State.result();
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}
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/// Reset the internal state to start over from scratch.
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void resetHash() { State.init(); }
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uint64_t current_pos() const override { return 0; }
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};
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} // end llvm namespace
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#endif
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