ClangUserExpression ctor should not crash if given a null expr_prefix char*.
git-svn-id: https://llvm.org/svn/llvm-project/llvdb/trunk@117700 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/source/Expression/ClangUserExpression.cpp b/source/Expression/ClangUserExpression.cpp
index bd67bbd..dc93d8e 100644
--- a/source/Expression/ClangUserExpression.cpp
+++ b/source/Expression/ClangUserExpression.cpp
@@ -38,7 +38,7 @@
ClangUserExpression::ClangUserExpression (const char *expr,
const char *expr_prefix) :
m_expr_text(expr),
- m_expr_prefix(expr_prefix),
+ m_expr_prefix(expr_prefix ? expr_prefix : ""),
m_transformed_text(),
m_jit_addr(LLDB_INVALID_ADDRESS),
m_cplusplus(false),
@@ -483,4 +483,4 @@
result_valobj_sp.reset (new ValueObjectConstResult (error));
return result_valobj_sp;
-}
\ No newline at end of file
+}