package vm import ( "github.com/ethereum/go-ethereum/log" "github.com/ethereum/go-ethereum/plugins" ) func (st *Stack) Len() int { return len(st.data) } func PluginOpCodeSelect(pl *plugins.PluginLoader, jt *JumpTable) *JumpTable { var opCodes []int fnList := pl.Lookup("OpCodeSelect", func(item interface{}) bool { _, ok := item.(func() []int) return ok }) for _, fni := range fnList { if fn, ok := fni.(func() []int); ok { opCodes = append(opCodes, fn()...) } } if len(opCodes) > 0 { jt = copyJumpTable(jt) } for _, idx := range opCodes { (*jt)[idx] = nil } return jt } func pluginOpCodeSelect(jt *JumpTable) *JumpTable { if plugins.DefaultPluginLoader == nil { log.Warn("Attempting PluginOpCodeSelect, but default PluginLoader has not been initialized") return nil } return PluginOpCodeSelect(plugins.DefaultPluginLoader, jt) }