[PCH] Mark a PCH file with a flag to indicate if the serialized AST had
compiler errors or not.
-Control whether ASTReader should reject such a PCH by a boolean flag at ASTReader's creation time.
By default, such a PCH file will be rejected with an error when trying to load it.
[libclang] Allow clang_saveTranslationUnit to create a PCH file even if compiler errors
occurred.
-Have libclang API calls accept a PCH that had compiler errors.
The general idea is that we want libclang to stay functional even if a PCH had a compiler error.
rdar://10976363.
llvm-svn: 152192
diff --git a/clang/lib/Frontend/CompilerInstance.cpp b/clang/lib/Frontend/CompilerInstance.cpp
index c6838be..6027381 100644
--- a/clang/lib/Frontend/CompilerInstance.cpp
+++ b/clang/lib/Frontend/CompilerInstance.cpp
@@ -306,12 +306,14 @@
void CompilerInstance::createPCHExternalASTSource(StringRef Path,
bool DisablePCHValidation,
bool DisableStatCache,
+ bool AllowPCHWithCompilerErrors,
void *DeserializationListener){
OwningPtr<ExternalASTSource> Source;
bool Preamble = getPreprocessorOpts().PrecompiledPreambleBytes.first != 0;
Source.reset(createPCHExternalASTSource(Path, getHeaderSearchOpts().Sysroot,
DisablePCHValidation,
DisableStatCache,
+ AllowPCHWithCompilerErrors,
getPreprocessor(), getASTContext(),
DeserializationListener,
Preamble));
@@ -324,6 +326,7 @@
const std::string &Sysroot,
bool DisablePCHValidation,
bool DisableStatCache,
+ bool AllowPCHWithCompilerErrors,
Preprocessor &PP,
ASTContext &Context,
void *DeserializationListener,
@@ -331,7 +334,8 @@
OwningPtr<ASTReader> Reader;
Reader.reset(new ASTReader(PP, Context,
Sysroot.empty() ? "" : Sysroot.c_str(),
- DisablePCHValidation, DisableStatCache));
+ DisablePCHValidation, DisableStatCache,
+ AllowPCHWithCompilerErrors));
Reader->setDeserializationListener(
static_cast<ASTDeserializationListener *>(DeserializationListener));