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[clang-format] do not add existing includes.

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Summary: do not add existing includes.

Reviewers: djasper

Subscribers: klimek, cfe-commits

Differential Revision: http://reviews.llvm.org/D21323

llvm-svn: 272669
This commit is contained in:
Eric Liu 2016-06-14 14:09:21 +00:00
parent 887a399418
commit 3753f912bf
2 changed files with 30 additions and 1 deletions
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8
clang/lib/Format/Format.cpp
View File

@ -1486,7 +1486,6 @@ unsigned getOffsetAfterHeaderGuardsAndComments(StringRef FileName,
// code.
// FIXME: do not insert headers into conditional #include blocks, e.g. #includes
// surrounded by compile condition "#if...".
// FIXME: do not insert existing headers.
// FIXME: insert empty lines between newly created blocks.
tooling::Replacements
fixCppIncludeInsertions(StringRef Code, const tooling::Replacements &Replaces,
@ -1533,10 +1532,12 @@ fixCppIncludeInsertions(StringRef Code, const tooling::Replacements &Replaces,
TrimmedCode.split(Lines, '\n');
unsigned Offset = MinInsertOffset;
unsigned NextLineOffset;
std::set<StringRef> ExistingIncludes;
for (auto Line : Lines) {
NextLineOffset = std::min(Code.size(), Offset + Line.size() + 1);
if (IncludeRegex.match(Line, &Matches)) {
StringRef IncludeName = Matches[2];
ExistingIncludes.insert(IncludeName);
int Category = Categories.getIncludePriority(
IncludeName, /*CheckMainHeader=*/FirstIncludeOffset < 0);
CategoryEndOffsets[Category] = NextLineOffset;
@ -1572,6 +1573,11 @@ fixCppIncludeInsertions(StringRef Code, const tooling::Replacements &Replaces,
"'#include ...'");
(void)Matched;
auto IncludeName = Matches[2];
if (ExistingIncludes.find(IncludeName) != ExistingIncludes.end()) {
DEBUG(llvm::dbgs() << "Skip adding existing include : " << IncludeName
<< "\n");
continue;
}
int Category =
Categories.getIncludePriority(IncludeName, /*CheckMainHeader=*/true);
Offset = CategoryEndOffsets[Category];

23
clang/unittests/Format/CleanupTest.cpp
View File

@ -688,6 +688,29 @@ TEST_F(CleanUpReplacementsTest, NoNewLineAtTheEndOfCode) {
EXPECT_EQ(Expected, apply(Code, Replaces));
}
TEST_F(CleanUpReplacementsTest, SkipExistingHeaders) {
std::string Code = "#include \"a.h\"\n"
"#include <vector>\n";
std::string Expected = "#include \"a.h\"\n"
"#include <vector>\n";
tooling::Replacements Replaces = {createInsertion("#include <vector>"),
createInsertion("#include \"a.h\"")};
EXPECT_EQ(Expected, apply(Code, Replaces));
}
TEST_F(CleanUpReplacementsTest, AddIncludesWithDifferentForms) {
std::string Code = "#include \"a.h\"\n"
"#include <vector>\n";
// FIXME: this might not be the best behavior.
std::string Expected = "#include \"a.h\"\n"
"#include \"vector\"\n"
"#include <vector>\n"
"#include <a.h>\n";
tooling::Replacements Replaces = {createInsertion("#include \"vector\""),
createInsertion("#include <a.h>")};
EXPECT_EQ(Expected, apply(Code, Replaces));
}
} // end namespace
} // end namespace format
} // end namespace clang