84 lines
2.3 KiB
C
84 lines
2.3 KiB
C
|
//===-- DiffLog.h - Difference Log Builder and accessories ------*- C++ -*-===//
|
||
|
|
//
|
||
|
|
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
|
||
|
|
// See https://llvm.org/LICENSE.txt for license information.
|
||
|
|
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
|
||
|
|
//
|
||
|
|
//===----------------------------------------------------------------------===//
|
||
|
|
//
|
||
|
|
// This header defines the interface to the LLVM difference log builder.
|
||
|
|
//
|
||
|
|
//===----------------------------------------------------------------------===//
|
||
|
|
|
||
|
|
#ifndef LLVM_TOOLS_LLVM_DIFF_DIFFLOG_H
|
||
|
|
#define LLVM_TOOLS_LLVM_DIFF_DIFFLOG_H
|
||
|
|
|
||
|
|
#include "llvm/ADT/SmallVector.h"
|
||
|
|
#include "llvm/ADT/StringRef.h"
|
||
|
|
|
||
|
|
namespace llvm {
|
||
|
|
class Instruction;
|
||
|
|
class Value;
|
||
|
|
class Consumer;
|
||
|
|
|
||
|
|
/// Trichotomy assumption
|
||
|
|
enum DiffChange { DC_match, DC_left, DC_right };
|
||
|
|
|
||
|
|
/// A temporary-object class for building up log messages.
|
||
|
|
class LogBuilder {
|
||
|
|
Consumer *consumer;
|
||
|
|
|
||
|
|
/// The use of a stored StringRef here is okay because
|
||
|
|
/// LogBuilder should be used only as a temporary, and as a
|
||
|
|
/// temporary it will be destructed before whatever temporary
|
||
|
|
/// might be initializing this format.
|
||
|
|
StringRef Format;
|
||
|
|
|
||
|
|
SmallVector<Value*, 4> Arguments;
|
||
|
|
|
||
|
|
public:
|
||
|
|
LogBuilder(Consumer &c, StringRef Format) : consumer(&c), Format(Format) {}
|
||
|
|
LogBuilder(LogBuilder &&L)
|
||
|
|
: consumer(L.consumer), Format(L.Format),
|
||
|
|
Arguments(std::move(L.Arguments)) {
|
||
|
|
L.consumer = nullptr;
|
||
|
|
}
|
||
|
|
|
||
|
|
LogBuilder &operator<<(Value *V) {
|
||
|
|
Arguments.push_back(V);
|
||
|
|
return *this;
|
||
|
|
}
|
||
|
|
|
||
|
|
~LogBuilder();
|
||
|
|
|
||
|
|
StringRef getFormat() const;
|
||
|
|
unsigned getNumArguments() const;
|
||
|
|
Value *getArgument(unsigned I) const;
|
||
|
|
};
|
||
|
|
|
||
|
|
/// A temporary-object class for building up diff messages.
|
||
|
|
class DiffLogBuilder {
|
||
|
|
typedef std::pair<Instruction*,Instruction*> DiffRecord;
|
||
|
|
SmallVector<DiffRecord, 20> Diff;
|
||
|
|
|
||
|
|
Consumer &consumer;
|
||
|
|
|
||
|
|
public:
|
||
|
|
DiffLogBuilder(Consumer &c) : consumer(c) {}
|
||
|
|
~DiffLogBuilder();
|
||
|
|
|
||
|
|
void addMatch(Instruction *L, Instruction *R);
|
||
|
|
// HACK: VS 2010 has a bug in the stdlib that requires this.
|
||
|
|
void addLeft(Instruction *L);
|
||
|
|
void addRight(Instruction *R);
|
||
|
|
|
||
|
|
unsigned getNumLines() const;
|
||
|
|
DiffChange getLineKind(unsigned I) const;
|
||
|
|
Instruction *getLeft(unsigned I) const;
|
||
|
|
Instruction *getRight(unsigned I) const;
|
||
|
|
};
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
#endif
|