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Fix potential crash

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This commit is contained in:
Jacob Dufault 2018-01-29 20:18:08 -08:00
parent e145f77996
commit a8b68d21d7
1 changed files with 2 additions and 0 deletions
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2
src/query_utils.cc
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@ -286,6 +286,8 @@ bool HasCallersOnSelfOrBaseOrDerived(QueryDatabase* db, QueryFunc& root) {
std::vector<QueryFuncRef> GetCallersForAllBaseFunctions(QueryDatabase* db,
QueryFunc& root) {
std::vector<QueryFuncRef> callers;
if (!root.def)
return callers;
std::queue<QueryFuncId> queue;
PushRange(&queue, root.def->base);