[lldb][NFC] Remove ClangASTContext::Clear

We now only use this function directly after initialization. As Clear()
resets the ASTContext back to its initial state, this is just a no-op.
There are no other users for this and we no longer can set the ASTContext
after construction, so Clear has no useful purpose anymore. It's also
mostly copy-pasted from Finalize().

llvm-svn: 373460

2 files changed, 0 insertions, 15 deletions

diff --git a/lldb/include/lldb/Symbol/ClangASTContext.h b/lldb/include/lldb/Symbol/ClangASTContext.h
index f91122b6636..188635a13b8 100644
--- a/lldb/include/lldb/Symbol/ClangASTContext.h
+++ b/lldb/include/lldb/Symbol/ClangASTContext.h
@@ -111,8 +111,6 @@ public:
   void setSema(clang::Sema *s);
   clang::Sema *getSema() { return m_sema; }
 
-  void Clear();
-
   const char *GetTargetTriple();
 
   void SetExternalSource(
diff --git a/lldb/source/Symbol/ClangASTContext.cpp b/lldb/source/Symbol/ClangASTContext.cpp
index 97952469ce5..30d8b1dd038 100644
--- a/lldb/source/Symbol/ClangASTContext.cpp
+++ b/lldb/source/Symbol/ClangASTContext.cpp
@@ -660,18 +660,6 @@ void ClangASTContext::Finalize() {
   m_scratch_ast_source_up.reset();
 }
 
-void ClangASTContext::Clear() {
-  m_language_options_up.reset();
-  m_source_manager_up.reset();
-  m_diagnostics_engine_up.reset();
-  m_target_options_rp.reset();
-  m_target_info_up.reset();
-  m_identifier_table_up.reset();
-  m_selector_table_up.reset();
-  m_builtins_up.reset();
-  m_pointer_byte_size = 0;
-}
-
 void ClangASTContext::setSema(Sema *s) {
   // Ensure that the new sema actually belongs to our ASTContext.
   assert(s == nullptr || &s->getASTContext() == m_ast_up.get());
@@ -683,7 +671,6 @@ const char *ClangASTContext::GetTargetTriple() {
 }
 
 void ClangASTContext::SetTargetTriple(llvm::StringRef target_triple) {
-  Clear();
   m_target_triple = target_triple.str();
 }