Febbe created this revision.
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Febbe requested review of this revision.
Herald added a project: clang.
Herald added a subscriber: cfe-commits.
This change aims to remove all duplicate include directives,
instead of only those, which are in the same block.
This change might be a bit controversial, since it will also remove includes,
which are in custom splitted blocks like:
#include "a.h"
/* some code */
// following include must stay!:
#include "a.h"
This is a follow up patch for D143691 <https://reviews.llvm.org/D143691>, but
can be freestanding.
Repository:
rG LLVM Github Monorepo
https://reviews.llvm.org/D143870
Files:
clang/lib/Format/Format.cpp
clang/unittests/Format/SortIncludesTest.cpp
Index: clang/unittests/Format/SortIncludesTest.cpp
===================================================================
--- clang/unittests/Format/SortIncludesTest.cpp
+++ clang/unittests/Format/SortIncludesTest.cpp
@@ -268,9 +268,7 @@
"#include <b>\n"
"#include <c>\n"
"/* clang-format offically */\n"
- "#include <a>\n"
- "#include <b>\n"
- "#include <c>\n"
+ "\n"
"/* clang-format onwards */\n",
sort("#include <b>\n"
"#include <a>\n"
@@ -899,6 +897,19 @@
"\n"
"#include <c>\n"
"#include <b>\n"));
+
+ Style.IncludeBlocks = tooling::IncludeStyle::IBS_Regroup;
+ EXPECT_EQ("#include \"MyProject/MyLibrary/c_main.h\"\n"
+ "\n"
+ "#include <MyProject/MySubLibrary/MySubClass.h>\n"
+ "//\n",
+ sort("#include \"MyProject/MyLibrary/c_main.h\"\n"
+ "#include \"MyProject/MyLibrary/c_main.h\"\n"
+ "#include <MyProject/MySubLibrary/MySubClass.h>\n"
+ "#include <MyProject/MySubLibrary/MySubClass.h>\n"
+ "//\n"
+ "#include <MyProject/MySubLibrary/MySubClass.h>\n",
+ "c_main.cpp", 2U));
}
TEST_F(SortIncludesTest, CalculatesCorrectCursorPositionAfterDeduplicate) {
@@ -924,11 +935,10 @@
EXPECT_EQ(26u, newCursor(Code, 52));
}
-TEST_F(SortIncludesTest, DeduplicateLocallyInEachBlock) {
+TEST_F(SortIncludesTest, DeduplicateInAllBlocks) {
EXPECT_EQ("#include <a>\n"
"#include <b>\n"
"\n"
- "#include <b>\n"
"#include <c>\n",
sort("#include <a>\n"
"#include <b>\n"
Index: clang/lib/Format/Format.cpp
===================================================================
--- clang/lib/Format/Format.cpp
+++ clang/lib/Format/Format.cpp
@@ -38,6 +38,7 @@
#include "llvm/ADT/STLExtras.h"
#include "llvm/ADT/Sequence.h"
#include "llvm/ADT/StringRef.h"
+#include "llvm/ADT/StringSet.h"
#include "llvm/Support/Allocator.h"
#include "llvm/Support/Debug.h"
#include "llvm/Support/Path.h"
@@ -2858,6 +2859,7 @@
// #include in the duplicate #includes.
static void sortCppIncludes(const FormatStyle &Style,
const SmallVectorImpl<IncludeDirective> &Includes,
+ llvm::StringSet<> &AllIncludes,
ArrayRef<tooling::Range> Ranges, StringRef FileName,
StringRef Code, tooling::Replacements &Replaces,
unsigned *Cursor) {
@@ -2900,12 +2902,14 @@
}
// Deduplicate #includes.
- Indices.erase(std::unique(Indices.begin(), Indices.end(),
- [&](unsigned LHSI, unsigned RHSI) {
- return Includes[LHSI].Text.trim() ==
- Includes[RHSI].Text.trim();
- }),
- Indices.end());
+
+ Indices.erase(
+ std::remove_if(
+ Indices.begin(), Indices.end(),
+ [&](unsigned val) {
+ return !AllIncludes.try_emplace(Includes[val].Text.trim()).second;
+ }),
+ Indices.end());
int CurrentCategory = Includes.front().Category;
@@ -2966,6 +2970,7 @@
.Default(0);
unsigned SearchFrom = 0;
SmallVector<StringRef, 4> Matches;
+ llvm::StringSet<> AllIncludes{};
SmallVector<IncludeDirective, 16> IncludesInBlock;
// FIXME: Do some validation, e.g. edit distance of the base name, to fix
@@ -3032,16 +3037,20 @@
Categories.getSortIncludePriority(IncludeName, FirstIncludeBlock);
// Todo(remove before merge): reason for removal: every header can have
// 0,0 priority
+
IncludesInBlock.push_back(
{IncludeName, Line, Prev, Category, Priority});
+
} else if (!IncludesInBlock.empty() && !EmptyLineSkipped) {
- sortCppIncludes(Style, IncludesInBlock, Ranges, FileName, Code,
- Replaces, Cursor);
+ sortCppIncludes(Style, IncludesInBlock, AllIncludes, Ranges, FileName,
+ Code, Replaces, Cursor);
IncludesInBlock.clear();
- if (Trimmed.startswith("#pragma hdrstop")) // Precompiled headers.
+ if (Trimmed.startswith("#pragma hdrstop")) { // Precompiled headers.
FirstIncludeBlock = true;
- else
+ AllIncludes.clear();
+ } else {
FirstIncludeBlock = false;
+ }
}
}
if (Pos == StringRef::npos || Pos + 1 == Code.size())
@@ -3052,8 +3061,8 @@
SearchFrom = Pos + 1;
}
if (!IncludesInBlock.empty()) {
- sortCppIncludes(Style, IncludesInBlock, Ranges, FileName, Code, Replaces,
- Cursor);
+ sortCppIncludes(Style, IncludesInBlock, AllIncludes, Ranges, FileName, Code,
+ Replaces, Cursor);
}
return Replaces;
}
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