class Rewriter;
-namespace format {
-struct FormatStyle;
-} // namespace format
-
namespace tooling {
/// \brief A source range independent of the \c SourceManager.
/// replacements cannot be applied, this returns an empty \c string.
std::string applyAllReplacements(StringRef Code, const Replacements &Replaces);
-/// \brief Applies all replacements in \p Replaces to \p Code.
-///
-/// This completely ignores the path stored in each replacement. If one or more
-/// replacements cannot be applied, this returns an empty \c string.
-std::string applyAllReplacements(StringRef Code,
- const std::vector<Replacements> &Replaces);
-
-/// \brief Calculate the ranges in a single file that are affected by the
-/// Replacements.
-///
-/// \pre Replacements must be for the same file.
-std::vector<tooling::Range>
-calculateChangedRangesInFile(const tooling::Replacements &Replaces);
-
-/// \brief Return replacements that are merged from orginal replacements
-/// and the replacements for formatting the code after applying the orginal
-/// replacements.
-tooling::Replacements formatReplacements(StringRef Code,
- const tooling::Replacements &Replaces,
- const format::FormatStyle &Style);
-
-/// \brief In addition to applying replacements as in `applyAllReplacements`,
-/// this function also reformats the changed code after applying replacements.
-///
-/// \pre Replacements must be for the same file and conflict-free.
-///
-/// Replacement applications happen independently of the success of
-/// other applications.
-///
-/// \returns the changed code if all replacements apply and code is fixed.
-/// empty string otherwise.
-std::string applyAllReplacementsAndFormat(StringRef Code,
- const Replacements &Replaces,
- const format::FormatStyle &Style);
-
/// \brief Merges two sets of replacements with the second set referring to the
/// code after applying the first set. Within both 'First' and 'Second',
/// replacements must not overlap.
//
//===----------------------------------------------------------------------===//
-#include "clang/Tooling/Core/Replacement.h"
-
#include "clang/Basic/Diagnostic.h"
#include "clang/Basic/DiagnosticIDs.h"
#include "clang/Basic/DiagnosticOptions.h"
#include "clang/Basic/FileManager.h"
#include "clang/Basic/SourceManager.h"
-#include "clang/Format/Format.h"
#include "clang/Lex/Lexer.h"
#include "clang/Rewrite/Core/Rewriter.h"
+#include "clang/Tooling/Core/Replacement.h"
#include "llvm/Support/FileSystem.h"
#include "llvm/Support/Path.h"
#include "llvm/Support/raw_os_ostream.h"
-#include <iterator>
namespace clang {
namespace tooling {
return Result;
}
-tooling::Replacements formatReplacements(StringRef Code,
- const tooling::Replacements &Replaces,
- const format::FormatStyle &Style) {
- if (Replaces.empty()) return Replacements();
-
- std::string NewCode = applyAllReplacements(Code, Replaces);
- std::vector<tooling::Range> ChangedRanges =
- calculateChangedRangesInFile(Replaces);
- StringRef FileName = Replaces.begin()->getFilePath();
- tooling::Replacements FormatReplaces =
- format::reformat(Style, NewCode, ChangedRanges, FileName);
-
- tooling::Replacements MergedReplacements =
- mergeReplacements(Replaces, FormatReplaces);
- return MergedReplacements;
-}
-
-std::vector<Range> calculateChangedRangesInFile(const Replacements &Replaces) {
- std::vector<Range> ChangedRanges;
- int Shift = 0;
- for (const tooling::Replacement &R : Replaces) {
- unsigned Offset = R.getOffset() + Shift;
- unsigned Length = R.getReplacementText().size();
- Shift += Length - R.getLength();
- ChangedRanges.push_back(tooling::Range(Offset, Length));
- }
- return ChangedRanges;
-}
-
-std::string applyAllReplacementsAndFormat(StringRef Code,
- const Replacements &Replaces,
- const format::FormatStyle &Style) {
- Replacements NewReplacements = formatReplacements(Code, Replaces, Style);
- if (NewReplacements.empty())
- return Code; // Exit early to avoid overhead in `applyAllReplacements`.
- return applyAllReplacements(Code, NewReplacements);
-}
-
namespace {
// Represents a merged replacement, i.e. a replacement consisting of multiple
// overlapping replacements from 'First' and 'Second' in mergeReplacements.
// Merges the next element 'R' into this merged element. As we always merge
// from 'First' into 'Second' or vice versa, the MergedReplacement knows what
- // set the next element is coming from.
+ // set the next element is coming from.
void merge(const Replacement &R) {
if (MergeSecond) {
unsigned REnd = R.getOffset() + Delta + R.getLength();
clangAST
clangASTMatchers
clangBasic
- clangFormat
clangFrontend
clangLex
clangRewrite
#include "clang/Basic/FileManager.h"
#include "clang/Basic/LangOptions.h"
#include "clang/Basic/SourceManager.h"
-#include "clang/Format/Format.h"
#include "clang/Frontend/CompilerInstance.h"
#include "clang/Frontend/FrontendAction.h"
#include "clang/Frontend/TextDiagnosticPrinter.h"
EXPECT_EQ("z", Context.getRewrittenText(IDz));
}
-TEST_F(ReplacementTest, FormatCodeAfterReplacements) {
- // Column limit is 20.
- std::string Code = "Type *a =\n"
- " new Type();\n"
- "g(iiiii, 0, jjjjj,\n"
- " 0, kkkkk, 0, mm);\n"
- "int bad = format ;";
- std::string Expected = "auto a = new Type();\n"
- "g(iiiii, nullptr,\n"
- " jjjjj, nullptr,\n"
- " kkkkk, nullptr,\n"
- " mm);\n"
- "int bad = format ;";
- FileID ID = Context.createInMemoryFile("format.cpp", Code);
- Replacements Replaces;
- Replaces.insert(
- Replacement(Context.Sources, Context.getLocation(ID, 1, 1), 6, "auto "));
- Replaces.insert(Replacement(Context.Sources, Context.getLocation(ID, 3, 10),
- 1, "nullptr"));
- Replaces.insert(Replacement(Context.Sources, Context.getLocation(ID, 4, 3), 1,
- "nullptr"));
- Replaces.insert(Replacement(Context.Sources, Context.getLocation(ID, 4, 13),
- 1, "nullptr"));
-
- format::FormatStyle Style = format::getLLVMStyle();
- Style.ColumnLimit = 20; // Set column limit to 20 to increase readibility.
- EXPECT_EQ(Expected, applyAllReplacementsAndFormat(Code, Replaces, Style));
-}
-
TEST(ShiftedCodePositionTest, FindsNewCodePosition) {
Replacements Replaces;
Replaces.insert(Replacement("", 0, 1, ""));
EXPECT_FALSE(Range(0, 10).contains(Range(0, 11)));
}
-TEST(Range, CalculateRangesOfReplacements) {
- // Before: aaaabbbbbbz
- // After : bbbbbbzzzzzzoooooooooooooooo
- Replacements Replaces;
- Replaces.insert(Replacement("foo", 0, 4, ""));
- Replaces.insert(Replacement("foo", 10, 1, "zzzzzz"));
- Replaces.insert(Replacement("foo", 11, 0, "oooooooooooooooo"));
-
- std::vector<Range> Ranges = calculateChangedRangesInFile(Replaces);
-
- EXPECT_EQ(3ul, Ranges.size());
- EXPECT_TRUE(Ranges[0].getOffset() == 0);
- EXPECT_TRUE(Ranges[0].getLength() == 0);
- EXPECT_TRUE(Ranges[1].getOffset() == 6);
- EXPECT_TRUE(Ranges[1].getLength() == 6);
- EXPECT_TRUE(Ranges[2].getOffset() == 12);
- EXPECT_TRUE(Ranges[2].getLength() == 16);
-}
-
TEST(DeduplicateTest, removesDuplicates) {
std::vector<Replacement> Input;
Input.push_back(Replacement("fileA", 50, 0, " foo "));
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