[PATCH] D42893: [libclang] Add clang_File_tryGetRealPathName

[Fangrui Song via Phabricator via cfe-commits]

MaskRay updated this revision to Diff 141496.
MaskRay added a comment.

Add unittests/libclang/LibclangTest.cpp test


Repository:
  rC Clang

https://reviews.llvm.org/D42893

Files:
  include/clang-c/Index.h
  tools/libclang/CIndex.cpp
  tools/libclang/libclang.exports
  unittests/libclang/LibclangTest.cpp


Index: unittests/libclang/LibclangTest.cpp
===================================================================
--- unittests/libclang/LibclangTest.cpp
+++ unittests/libclang/LibclangTest.cpp
@@ -482,6 +482,21 @@
   }
 };
 
+TEST_F(LibclangReparseTest, FileName) {
+  std::string CppName = "main.cpp";
+  WriteFile(CppName, "int main() {}");
+  ClangTU = clang_parseTranslationUnit(Index, CppName.c_str(), nullptr, 0,
+                                       nullptr, 0, TUFlags);
+  CXFile cxf = clang_getFile(ClangTU, CppName.c_str());
+
+  CXString cxname = clang_getFileName(cxf);
+  ASSERT_TRUE(strstr(clang_getCString(cxname), CppName.c_str()));
+  clang_disposeString(cxname);
+
+  cxname = clang_File_tryGetRealPathName(cxf);
+  ASSERT_TRUE(strstr(clang_getCString(cxname), CppName.c_str()));
+  clang_disposeString(cxname);
+}
 
 TEST_F(LibclangReparseTest, Reparse) {
   const char *HeaderTop = "#ifndef H\n#define H\nstruct Foo { int bar;";
Index: tools/libclang/libclang.exports
===================================================================
--- tools/libclang/libclang.exports
+++ tools/libclang/libclang.exports
@@ -46,6 +46,7 @@
 clang_Cursor_getModule
 clang_Cursor_getStorageClass
 clang_File_isEqual
+clang_File_tryGetRealPathName
 clang_Module_getASTFile
 clang_Module_getParent
 clang_Module_getName
Index: tools/libclang/CIndex.cpp
===================================================================
--- tools/libclang/CIndex.cpp
+++ tools/libclang/CIndex.cpp
@@ -4249,6 +4249,14 @@
   return FEnt1->getUniqueID() == FEnt2->getUniqueID();
 }
 
+CXString clang_File_tryGetRealPathName(CXFile SFile) {
+  if (!SFile)
+    return cxstring::createNull();
+
+  FileEntry *FEnt = static_cast<FileEntry *>(SFile);
+  return cxstring::createRef(FEnt->tryGetRealPathName());
+}
+
 //===----------------------------------------------------------------------===//
 // CXCursor Operations.
 //===----------------------------------------------------------------------===//
Index: include/clang-c/Index.h
===================================================================
--- include/clang-c/Index.h
+++ include/clang-c/Index.h
@@ -424,6 +424,13 @@
  */
 CINDEX_LINKAGE int clang_File_isEqual(CXFile file1, CXFile file2);
 
+/**
+ * \brief Returns the real path name of \c file.
+ *
+ * An empty string may be returned. Use \c clang_getFileName() in that case.
+ */
+CINDEX_LINKAGE CXString clang_File_tryGetRealPathName(CXFile file);
+
 /**
  * @}
  */


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