blob: 7a4d8b45f189eb5b411f52c670b2bb4076a0ed24 (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
|
//===--- Transformer.cpp - Transformer library implementation ---*- 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
//
//===----------------------------------------------------------------------===//
#include "clang/Tooling/Transformer/Transformer.h"
#include "clang/ASTMatchers/ASTMatchFinder.h"
#include "clang/ASTMatchers/ASTMatchersInternal.h"
#include "clang/Basic/SourceLocation.h"
#include "clang/Tooling/Refactoring/AtomicChange.h"
#include "llvm/Support/Error.h"
#include <map>
#include <utility>
#include <vector>
using namespace clang;
using namespace tooling;
using ast_matchers::MatchFinder;
void Transformer::registerMatchers(MatchFinder *MatchFinder) {
for (auto &Matcher : transformer::detail::buildMatchers(Rule))
MatchFinder->addDynamicMatcher(Matcher, this);
}
void Transformer::run(const MatchFinder::MatchResult &Result) {
if (Result.Context->getDiagnostics().hasErrorOccurred())
return;
transformer::RewriteRule::Case Case =
transformer::detail::findSelectedCase(Result, Rule);
auto Transformations = Case.Edits(Result);
if (!Transformations) {
Consumer(Transformations.takeError());
return;
}
if (Transformations->empty())
return;
// Group the transformations, by file, into AtomicChanges, each anchored by
// the location of the first change in that file.
std::map<FileID, AtomicChange> ChangesByFileID;
for (const auto &T : *Transformations) {
auto ID = Result.SourceManager->getFileID(T.Range.getBegin());
auto Iter = ChangesByFileID
.emplace(ID, AtomicChange(*Result.SourceManager,
T.Range.getBegin(), T.Metadata))
.first;
auto &AC = Iter->second;
switch (T.Kind) {
case transformer::EditKind::Range:
if (auto Err =
AC.replace(*Result.SourceManager, T.Range, T.Replacement)) {
Consumer(std::move(Err));
return;
}
break;
case transformer::EditKind::AddInclude:
AC.addHeader(T.Replacement);
break;
}
}
for (auto &IDChangePair : ChangesByFileID)
Consumer(std::move(IDChangePair.second));
}
|
