Method CallWithContinuation

lua.go:334–352

CallWithContinuation is exactly like Call, but allows the called function to yield. http://www.lua.org/manual/5.2/manual.html#lua_callk

(argCount, resultCount, context int, continuation Function)

//
// http://www.lua.org/manual/5.2/manual.html#lua_callk
func (l *State) CallWithContinuation(argCount, resultCount, context int, continuation Function) {
	if apiCheck && continuation != nil && l.callInfo.isLua() {
		panic("cannot use continuations inside hooks")
	}
	l.checkElementCount(argCount + 1)
	if apiCheck && l.shouldYield {
		panic("cannot do calls on non-normal thread")
	}
	l.checkResults(argCount, resultCount)
	f := l.top - (argCount + 1)
	if continuation != nil && l.nonYieldableCallCount == 0 { // need to prepare continuation?
		l.callInfo.continuation = continuation
		l.callInfo.context = context
		l.call(f, resultCount, true) // just do the call
	} else { // no continuation or not yieldable
		l.call(f, resultCount, false) // just do the call
	}
	l.adjustResults(resultCount)
}

// ProtectedCall calls a function in protected mode. Both argCount and
// resultCount have the same meaning as in Call. If there are no errors