diff options
| author | Taewook Oh <twoh@fb.com> | 2017-12-06 17:00:53 +0000 |
|---|---|---|
| committer | Taewook Oh <twoh@fb.com> | 2017-12-06 17:00:53 +0000 |
| commit | d4cff48210ee3a73f2299178812b162a4d76dcc4 (patch) | |
| tree | 5629d4f955d186dfdd82eb47481c71d63102d09d /unittests | |
| parent | 330ea9e419f00cbdfdf446b03a2d2fc9f66598ad (diff) | |
Stringizing raw string literals containing newline
Summary: This patch implements 4.3 of http://open-std.org/jtc1/sc22/wg21/docs/papers/2014/n4220.pdf. If a raw string contains a newline character, replace each newline character with the \n escape code. Without this patch, included test case (macro_raw_string.cpp) results compilation failure.
Reviewers: rsmith, doug.gregor, jkorous-apple
Reviewed By: jkorous-apple
Subscribers: jkorous-apple, vsapsai, cfe-commits
Differential Revision: https://reviews.llvm.org/D39279
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@319904 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'unittests')
| -rw-r--r-- | unittests/Lex/LexerTest.cpp | 40 |
1 files changed, 39 insertions, 1 deletions
diff --git a/unittests/Lex/LexerTest.cpp b/unittests/Lex/LexerTest.cpp index 894f8c7fd8..d699a44b13 100644 --- a/unittests/Lex/LexerTest.cpp +++ b/unittests/Lex/LexerTest.cpp @@ -37,7 +37,7 @@ protected: DiagID(new DiagnosticIDs()), Diags(DiagID, new DiagnosticOptions, new IgnoringDiagConsumer()), SourceMgr(Diags, FileMgr), - TargetOpts(new TargetOptions) + TargetOpts(new TargetOptions) { TargetOpts->Triple = "x86_64-apple-darwin11.1.0"; Target = TargetInfo::CreateTargetInfo(Diags, TargetOpts); @@ -478,4 +478,42 @@ TEST_F(LexerTest, AvoidPastEndOfStringDereference) { EXPECT_TRUE(LexedTokens.empty()); } +TEST_F(LexerTest, StringizingRasString) { + // For "std::string Lexer::Stringify(StringRef Str, bool Charify)". + std::string String1 = R"(foo + {"bar":[]} + baz)"; + // For "void Lexer::Stringify(SmallVectorImpl<char> &Str)". + SmallString<128> String2; + String2 += String1.c_str(); + + // Corner cases. + std::string String3 = R"(\ + \n + \\n + \\)"; + SmallString<128> String4; + String4 += String3.c_str(); + std::string String5 = R"(a\ + + + \\b)"; + SmallString<128> String6; + String6 += String5.c_str(); + + String1 = Lexer::Stringify(StringRef(String1)); + Lexer::Stringify(String2); + String3 = Lexer::Stringify(StringRef(String3)); + Lexer::Stringify(String4); + String5 = Lexer::Stringify(StringRef(String5)); + Lexer::Stringify(String6); + + EXPECT_EQ(String1, R"(foo\n {\"bar\":[]}\n baz)"); + EXPECT_EQ(String2, R"(foo\n {\"bar\":[]}\n baz)"); + EXPECT_EQ(String3, R"(\\\n \\n\n \\\\n\n \\\\)"); + EXPECT_EQ(String4, R"(\\\n \\n\n \\\\n\n \\\\)"); + EXPECT_EQ(String5, R"(a\\\n\n\n \\\\b)"); + EXPECT_EQ(String6, R"(a\\\n\n\n \\\\b)"); +} + } // anonymous namespace |