diff options
Diffstat (limited to 'src/qml/jsruntime')
| -rw-r--r-- | src/qml/jsruntime/qv4runtime.cpp | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/src/qml/jsruntime/qv4runtime.cpp b/src/qml/jsruntime/qv4runtime.cpp index 424103cb08..53dd3a66dd 100644 --- a/src/qml/jsruntime/qv4runtime.cpp +++ b/src/qml/jsruntime/qv4runtime.cpp @@ -1561,12 +1561,14 @@ ReturnedValue Runtime::method_tailCall(CppStackFrame *frame, ExecutionEngine *en const Value &thisObject = tos[StackOffsets::tailCall_thisObject]; Value *argv = reinterpret_cast<Value *>(frame->jsFrame) + tos[StackOffsets::tailCall_argv].int_32(); int argc = tos[StackOffsets::tailCall_argc].int_32(); + Q_ASSERT(argc >= 0); if (!function.isFunctionObject()) return engine->throwTypeError(); const FunctionObject &fo = static_cast<const FunctionObject &>(function); - if (!frame->callerCanHandleTailCall || !fo.canBeTailCalled() || engine->debugger()) { + if (!frame->callerCanHandleTailCall || !fo.canBeTailCalled() || engine->debugger() + || unsigned(argc) > fo.formalParameterCount()) { // Cannot tailcall, do a normal call: return fo.call(&thisObject, argv, argc); } |