Added checking to make sure that the target has a

scratch AST context before attempting to parse.

llvm-svn: 136631

1 files changed, 5 insertions, 1 deletions

diff --git a/lldb/source/Expression/ClangUserExpression.cpp b/lldb/source/Expression/ClangUserExpression.cpp
index d8d65bc379f..9bc41889445 100644
--- a/lldb/source/Expression/ClangUserExpression.cpp
+++ b/lldb/source/Expression/ClangUserExpression.cpp
@@ -241,7 +241,11 @@ ClangUserExpression::Parse (Stream &error_stream,
     
     m_expr_decl_map.reset(new ClangExpressionDeclMap(keep_result_in_memory));
     
-    m_expr_decl_map->WillParse(exe_ctx);
+    if (!m_expr_decl_map->WillParse(exe_ctx))
+    {
+        error_stream.PutCString ("error: current process state is unsuitable for expression parsing\n");
+        return false;
+    }
     
     ClangExpressionParser parser(exe_ctx.process, *this);