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Bugfix: check recursive cls impls. #634

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Bugfix: check recursive cls impls. #634

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10 changes: 7 additions & 3 deletions libredex/DexTypeEnvironment.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -18,10 +18,14 @@ bool implements(const DexClass* cls, const DexType* intf) {
if (is_interface(cls)) {
return false;
}
for (const auto interface : cls->get_interfaces()->get_type_list()) {
if (interface == intf) {
return true;
auto parent = cls;
while (parent) {
for (const auto interface : parent->get_interfaces()->get_type_list()) {
if (interface == intf) {
return true;
}
}
parent = type_class(parent->get_super_class());
}
return false;
}
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