740   If the scope chain is already empty, this function returns an

   740   If the scope chain is already empty, this function returns an

   741   invalid QScriptValue.

   741   invalid QScriptValue.

   742 */

   742 */

   743 QScriptValue QScriptContext::popScope()

   743 QScriptValue QScriptContext::popScope()

   744 {

   744 {

   745     JSC::CallFrame *frame = QScriptEnginePrivate::frameForContext(this);

   746     JSC::CallFrame *frame = QScriptEnginePrivate::frameForContext(this);

   746     JSC::ScopeChainNode *scope = frame->scopeChain();

   747     JSC::ScopeChainNode *scope = frame->scopeChain();

   747     Q_ASSERT(scope != 0);

   748     Q_ASSERT(scope != 0);

   748     QScriptEnginePrivate *engine = QScript::scriptEngineFromExec(frame);

   749     QScriptEnginePrivate *engine = QScript::scriptEngineFromExec(frame);

   749     QScript::APIShim shim(engine);

   750     QScript::APIShim shim(engine);