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-rw-r--r--libsolidity/analysis/ReferencesResolver.cpp5
1 files changed, 5 insertions, 0 deletions
diff --git a/libsolidity/analysis/ReferencesResolver.cpp b/libsolidity/analysis/ReferencesResolver.cpp
index ba793933..5458c1b0 100644
--- a/libsolidity/analysis/ReferencesResolver.cpp
+++ b/libsolidity/analysis/ReferencesResolver.cpp
@@ -256,6 +256,11 @@ bool ReferencesResolver::visit(InlineAssembly const& _inlineAssembly)
string("_slot").size() :
string("_offset").size()
));
+ if (realName.empty())
+ {
+ declarationError(_identifier.location, "In variable names _slot and _offset can only be used as a suffix.");
+ return size_t(-1);
+ }
declarations = m_resolver.nameFromCurrentScope(realName);
}
if (declarations.size() != 1)