void evaluate(
    in DOMString script); 

unsigned short scopeType(
    in int scopeIndex); 

readonly attribute JavaScriptCallFrame caller; 

const unsigned short CATCH_SCOPE = 4; 

const unsigned short CLOSURE_SCOPE = 3; 

readonly attribute DOMString functionName; 

const unsigned short GLOBAL_SCOPE = 0; 

readonly attribute long line; 

const unsigned short LOCAL_SCOPE = 1; 

readonly attribute Array scopeChain; 

readonly attribute long sourceID; 

readonly attribute Object thisObject; 

readonly attribute DOMString type; 

const unsigned short WITH_SCOPE = 2;