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llvm-mirror/include/llvm/Support/raw_sha1_ostream.h
Mehdi Amini 9ff867f98c [NFC] Header cleanup
Removed some unused headers, replaced some headers with forward class declarations.

Found using simple scripts like this one:
clear && ack --cpp -l '#include "llvm/ADT/IndexedMap.h"' | xargs grep -L 'IndexedMap[<]' | xargs grep -n --color=auto 'IndexedMap'

Patch by Eugene Kosov <claprix@yandex.ru>

Differential Revision: http://reviews.llvm.org/D19219

From: Mehdi Amini <mehdi.amini@apple.com>
llvm-svn: 266595
2016-04-18 09:17:29 +00:00

48 lines
1.3 KiB
C++

//==- raw_sha1_ostream.h - raw_ostream that compute SHA1 --*- C++ -*-==//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file defines the raw_sha1_ostream class.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_SUPPORT_RAW_SHA1_OSTREAM_H
#define LLVM_SUPPORT_RAW_SHA1_OSTREAM_H
#include "llvm/Support/raw_ostream.h"
#include "llvm/Support/SHA1.h"
#include "llvm/ADT/ArrayRef.h"
namespace llvm {
/// A raw_ostream that hash the content using the sha1 algorithm.
class raw_sha1_ostream : public raw_ostream {
SHA1 State;
/// See raw_ostream::write_impl.
void write_impl(const char *Ptr, size_t Size) override {
State.update(ArrayRef<uint8_t>((const uint8_t *)Ptr, Size));
}
public:
/// Return the current SHA1 hash for the content of the stream
StringRef sha1() {
flush();
return State.result();
}
/// Reset the internal state to start over from scratch.
void resetHash() { State.init(); }
uint64_t current_pos() const override { return 0; }
};
} // end llvm namespace
#endif