Function protectedParser

parser.go:673–697

(l *State, r io.Reader, name, chunkMode string)

}

func protectedParser(l *State, r io.Reader, name, chunkMode string) error {
	l.nonYieldableCallCount++
	err := l.protectedCall(func() {
		var closure *luaClosure
		b := bufio.NewReader(r)
		if c, err := b.ReadByte(); err != nil {
			l.checkMode(chunkMode, "text")
			closure = l.parse(b, name)
		} else if c == Signature[0] {
			l.checkMode(chunkMode, "binary")
			b.UnreadByte()
			closure, _ = l.undump(b, name) // TODO handle err
		} else {
			l.checkMode(chunkMode, "text")
			b.UnreadByte()
			closure = l.parse(b, name)
		}
		l.assert(closure.upValueCount() == len(closure.prototype.upValues))
		for i := range closure.upValues {
			closure.upValues[i] = l.newUpValue()
		}
	}, l.top, l.errorFunction)
	l.nonYieldableCallCount--
	return err
}