forked from qt-creator/qt-creator
c205b43af1
Ensure that CINDEX_VERSION_MINOR is never increased and that instead specific macros indicate backported functionality. This minimizes potential build problems with other API functions that might have been backported or not in the meanwhile. Change-Id: I44d868e82dd6a3ea5aa3e8b22e18bba5c4bf8d16 Reviewed-by: Ivan Donchevskii <ivan.donchevskii@qt.io>
79 lines
2.8 KiB
Diff
79 lines
2.8 KiB
Diff
diff --git a/include/clang-c/Index.h b/include/clang-c/Index.h
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index f2397d1b63..0f4ade266c 100644
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--- a/tools/clang/include/clang-c/Index.h
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+++ b/tools/clang/include/clang-c/Index.h
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@@ -34,6 +34,7 @@
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#define CINDEX_VERSION_MAJOR 0
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#define CINDEX_VERSION_MINOR 43
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#define CINDEX_VERSION_HAS_ISINVALIDECL_BACKPORTED
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+#define CINDEX_VERSION_HAS_GETFILECONTENTS_BACKPORTED
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#define CINDEX_VERSION_ENCODE(major, minor) ( \
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((major) * 10000) \
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@@ -394,6 +395,21 @@ clang_isFileMultipleIncludeGuarded(CXTranslationUnit tu, CXFile file);
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CINDEX_LINKAGE CXFile clang_getFile(CXTranslationUnit tu,
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const char *file_name);
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+/**
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+ * \brief Retrieve the buffer associated with the given file.
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+ *
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+ * \param tu the translation unit
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+ *
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+ * \param file the file for which to retrieve the buffer.
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+ *
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+ * \param size [out] if non-NULL, will be set to the size of the buffer.
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+ *
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+ * \returns a pointer to the buffer in memory that holds the contents of
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+ * \p file, or a NULL pointer when the file is not loaded.
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+ */
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+CINDEX_LINKAGE const char *clang_getFileContents(CXTranslationUnit tu,
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+ CXFile file, size_t *size);
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+
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/**
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* \brief Returns non-zero if the \c file1 and \c file2 point to the same file,
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* or they are both NULL.
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diff --git a/tools/libclang/CIndex.cpp b/tools/libclang/CIndex.cpp
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index 13599e1910..7902e8a030 100644
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--- a/tools/clang/tools/libclang/CIndex.cpp
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+++ b/tools/clang/tools/libclang/CIndex.cpp
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@@ -4148,6 +4148,27 @@ CXFile clang_getFile(CXTranslationUnit TU, const char *file_name) {
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return const_cast<FileEntry *>(FMgr.getFile(file_name));
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}
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+const char *clang_getFileContents(CXTranslationUnit TU, CXFile file,
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+ size_t *size) {
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+ if (isNotUsableTU(TU)) {
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+ LOG_BAD_TU(TU);
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+ return nullptr;
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+ }
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+
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+ const SourceManager &SM = cxtu::getASTUnit(TU)->getSourceManager();
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+ FileID fid = SM.translateFile(static_cast<FileEntry *>(file));
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+ bool Invalid = true;
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+ llvm::MemoryBuffer *buf = SM.getBuffer(fid, &Invalid);
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+ if (Invalid) {
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+ if (size)
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+ *size = 0;
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+ return nullptr;
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+ }
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+ if (size)
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+ *size = buf->getBufferSize();
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+ return buf->getBufferStart();
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+}
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+
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unsigned clang_isFileMultipleIncludeGuarded(CXTranslationUnit TU,
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CXFile file) {
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if (isNotUsableTU(TU)) {
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diff --git a/tools/libclang/libclang.exports b/tools/libclang/libclang.exports
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index 7192baab6a..c788abb881 100644
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--- a/tools/clang/tools/libclang/libclang.exports
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+++ b/tools/clang/tools/libclang/libclang.exports
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@@ -216,6 +216,7 @@ clang_getExceptionSpecificationType
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clang_getFieldDeclBitWidth
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clang_getExpansionLocation
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clang_getFile
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+clang_getFileContents
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clang_getFileLocation
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clang_getFileName
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clang_getFileTime
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