变量

type Variable struct {
    Name  string      `msgpack:"N,omitempty" json:"N,omitempty"`
    Type  Vtype       `msgpack:"T,omitempty" json:"T,omitempty"` // we have only 4 data types
    Value interface{} `msgpack:"V,omitempty" json:"V,omitempty"`
}

函数

type Function struct {
    Name        string              `msgpack:"N,omitempty" json:"N,omitempty"`
    Params      []Variable          `msgpack:"P,omitempty" json:"P,omitempty"`
    ReturnValue Variable            `msgpack:"R,omitempty" json:"R,omitempty"`
    Lines       map[uint64][]string `msgpack:"L,omitempty" json:"L,omitempty"`
    // map from line number to array index below
    LinesNumberIndex map[uint64]uint64 `msgpack:"LI,omitempty" json:"LI,omitempty"` // a map is used to avoid sorting/searching
    LineNumbers      []uint64          `msgpack:"LN,omitempty" json:"LN,omitempty"`
}

由名字、输入参数、返回值、方法体构成。

智能合约

// each smart code is nothing but a collection of functions
type SmartContract struct {
    Functions map[string]Function `msgpack:"F,omitempty" json:"F,omitempty"`
}

由一个个“函数”构成。