xref: /freebsd/contrib/llvm-project/llvm/tools/llvm-diff/lib/DiffLog.cpp (revision 0c59e0b4e5817f139ce28486085b2f196351c7a3)
1  //===-- DiffLog.h - Difference Log Builder and accessories ------*- C++ -*-===//
2  //
3  // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4  // See https://llvm.org/LICENSE.txt for license information.
5  // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6  //
7  //===----------------------------------------------------------------------===//
8  //
9  // This header defines the interface to the LLVM difference log builder.
10  //
11  //===----------------------------------------------------------------------===//
12  
13  #include "DiffLog.h"
14  #include "DiffConsumer.h"
15  #include "llvm/ADT/StringRef.h"
16  
17  using namespace llvm;
18  
19  LogBuilder::~LogBuilder() {
20    if (consumer)
21      consumer->logf(*this);
22  }
23  
24  StringRef LogBuilder::getFormat() const { return Format; }
25  
26  unsigned LogBuilder::getNumArguments() const { return Arguments.size(); }
27  const Value *LogBuilder::getArgument(unsigned I) const { return Arguments[I]; }
28  
29  DiffLogBuilder::~DiffLogBuilder() { consumer.logd(*this); }
30  
31  void DiffLogBuilder::addMatch(const Instruction *L, const Instruction *R) {
32    Diff.push_back(DiffRecord(L, R));
33  }
34  void DiffLogBuilder::addLeft(const Instruction *L) {
35    // HACK: VS 2010 has a bug in the stdlib that requires this.
36    Diff.push_back(DiffRecord(L, DiffRecord::second_type(nullptr)));
37  }
38  void DiffLogBuilder::addRight(const Instruction *R) {
39    // HACK: VS 2010 has a bug in the stdlib that requires this.
40    Diff.push_back(DiffRecord(DiffRecord::first_type(nullptr), R));
41  }
42  
43  unsigned DiffLogBuilder::getNumLines() const { return Diff.size(); }
44  
45  DiffChange DiffLogBuilder::getLineKind(unsigned I) const {
46    return (Diff[I].first ? (Diff[I].second ? DC_match : DC_left)
47                          : DC_right);
48  }
49  const Instruction *DiffLogBuilder::getLeft(unsigned I) const {
50    return Diff[I].first;
51  }
52  const Instruction *DiffLogBuilder::getRight(unsigned I) const {
53    return Diff[I].second;
54  }
55