Method setTop

stack.go:150–156

(top int)

func (ci *callInfo) jump(offset int)         { ci.savedPC += pc(offset) }

func (ci *callInfo) setTop(top int) {
	if ci.luaCallInfo != nil {
		diff := top - ci.top
		ci.frame = ci.frame[:len(ci.frame)+diff]
	}
	ci.top = top
}

func (ci *callInfo) frameIndex(stackSlot int) int {
	if stackSlot < ci.top-len(ci.frame) || ci.top <= stackSlot {