https://llvm.org/bugs/show_bug.cgi?id=24748
Bug ID: 24748
Summary: clang_getInclusions is returning no includes after the
preamble is compiled
Product: clang
Version: trunk
Hardware: PC
OS: Linux
Status: NEW
Severity: normal
Priority: P
Component: libclang
Assignee: unassignedclangb...@nondot.org
Reporter: cl...@bubke.de
CC: kli...@google.com, llvm-bugs@lists.llvm.org
Classification: Unclassified
1. clang_parseTranslationUnit2 (CXTranslationUnit_CacheCompletionResults
| CXTranslationUnit_PrecompiledPreamble
| CXTranslationUnit_IncludeBriefCommentsInCodeCompletion)
2. clang_getInclusions -> get expected include list
3. clang_reparseTranslationUnit
4. clang_getInclusions -> get no includes anymore
After playing around in the clang source the following patch is fixing it. It
looks like there are more than the expected one entry but all except one are
invalid.
Index: tools/libclang/CIndexInclusionStack.cpp
===================================================================
--- tools/libclang/CIndexInclusionStack.cpp (revision 246452)
+++ tools/libclang/CIndexInclusionStack.cpp (working copy)
@@ -35,12 +35,28 @@
SmallVector<CXSourceLocation, 10> InclusionStack;
unsigned n = SM.local_sloc_entry_size();
+ unsigned n2 = 0;
+ const SrcMgr::SLocEntry &(SourceManager::*Getter)(unsigned, bool*) const;
+ Getter = &SourceManager::getLocalSLocEntry;
+
+ for (unsigned i = 0 ; i < n ; ++i) {
+ bool Invalid = false;
+ const SrcMgr::SLocEntry &SL = (SM.*Getter)(i, &Invalid);
+
+ if (!SL.isFile() || Invalid)
+ continue;
+
+ const SrcMgr::FileInfo &FI = SL.getFile();
+ if (!FI.getContentCache()->OrigEntry)
+ continue;
+
+ ++n2;
+ }
// In the case where all the SLocEntries are in an external source, traverse
// those SLocEntries as well. This is the case where we are looking
// at the inclusion stack of an AST/PCH file.
- const SrcMgr::SLocEntry &(SourceManager::*Getter)(unsigned, bool*) const;
- if (n == 1) {
+ if (n2 == 1) {
Getter = &SourceManager::getLoadedSLocEntry;
n = SM.loaded_sloc_entry_size();
} else
--
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