[cfe-commits] r116587 - in /cfe/trunk: include/clang-c/Index.h tools/libclang/CIndex.cpp tools/libclang/libclang.darwin.exports tools/libclang/libclang.exports
David Chisnall
csdavec at swan.ac.uk
Fri Oct 15 10:07:39 PDT 2010
Author: theraven
Date: Fri Oct 15 12:07:39 2010
New Revision: 116587
URL: http://llvm.org/viewvc/llvm-project?rev=116587&view=rev
Log:
Add clang_getLocationForOffset() to libclang, for gives a source location from a character index into a file.
Modified:
cfe/trunk/include/clang-c/Index.h
cfe/trunk/tools/libclang/CIndex.cpp
cfe/trunk/tools/libclang/libclang.darwin.exports
cfe/trunk/tools/libclang/libclang.exports
Modified: cfe/trunk/include/clang-c/Index.h
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/include/clang-c/Index.h?rev=116587&r1=116586&r2=116587&view=diff
==============================================================================
--- cfe/trunk/include/clang-c/Index.h (original)
+++ cfe/trunk/include/clang-c/Index.h Fri Oct 15 12:07:39 2010
@@ -301,6 +301,13 @@
CXFile file,
unsigned line,
unsigned column);
+/**
+ * \brief Retrieves the source location associated with a given character offset
+ * in a particular translation unit.
+ */
+CINDEX_LINKAGE CXSourceLocation clang_getLocationForOffset(CXTranslationUnit tu,
+ CXFile file,
+ unsigned offset);
/**
* \brief Retrieve a NULL (invalid) source range.
Modified: cfe/trunk/tools/libclang/CIndex.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/tools/libclang/CIndex.cpp?rev=116587&r1=116586&r2=116587&view=diff
==============================================================================
--- cfe/trunk/tools/libclang/CIndex.cpp (original)
+++ cfe/trunk/tools/libclang/CIndex.cpp Fri Oct 15 12:07:39 2010
@@ -2266,6 +2266,27 @@
= CXXUnit->getSourceManager().getLocation(
static_cast<const FileEntry *>(file),
line, column);
+ if (SLoc.isInvalid()) return clang_getNullLocation();
+
+ return cxloc::translateSourceLocation(CXXUnit->getASTContext(), SLoc);
+}
+
+CXSourceLocation clang_getLocationForOffset(CXTranslationUnit tu,
+ CXFile file,
+ unsigned offset) {
+ if (!tu || !file)
+ return clang_getNullLocation();
+
+ ASTUnit *CXXUnit = static_cast<ASTUnit *>(tu);
+ SourceLocation Start
+ = CXXUnit->getSourceManager().getLocation(
+ static_cast<const FileEntry *>(file),
+ 1, 1);
+ if (Start.isInvalid()) return clang_getNullLocation();
+
+ SourceLocation SLoc = Start.getFileLocWithOffset(offset);
+
+ if (SLoc.isInvalid()) return clang_getNullLocation();
return cxloc::translateSourceLocation(CXXUnit->getASTContext(), SLoc);
}
Modified: cfe/trunk/tools/libclang/libclang.darwin.exports
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/tools/libclang/libclang.darwin.exports?rev=116587&r1=116586&r2=116587&view=diff
==============================================================================
--- cfe/trunk/tools/libclang/libclang.darwin.exports (original)
+++ cfe/trunk/tools/libclang/libclang.darwin.exports Fri Oct 15 12:07:39 2010
@@ -71,6 +71,7 @@
_clang_getInclusions
_clang_getInstantiationLocation
_clang_getLocation
+_clang_getLocationForOffset
_clang_getNullCursor
_clang_getNullLocation
_clang_getNullRange
Modified: cfe/trunk/tools/libclang/libclang.exports
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/tools/libclang/libclang.exports?rev=116587&r1=116586&r2=116587&view=diff
==============================================================================
--- cfe/trunk/tools/libclang/libclang.exports (original)
+++ cfe/trunk/tools/libclang/libclang.exports Fri Oct 15 12:07:39 2010
@@ -71,6 +71,7 @@
clang_getInclusions
clang_getInstantiationLocation
clang_getLocation
+clang_getLocationForOffset
clang_getNullCursor
clang_getNullLocation
clang_getNullRange
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