neoneo-go/pkg/wire/payload/transaction/invocation.go

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package transaction
import (
"errors"
"github.com/CityOfZion/neo-go/pkg/wire/payload/transaction/types"
"github.com/CityOfZion/neo-go/pkg/wire/payload/transaction/version"
"github.com/CityOfZion/neo-go/pkg/wire/util"
"github.com/CityOfZion/neo-go/pkg/wire/util/fixed8"
)
//Invocation represents an invocation transaction on the neo network
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type Invocation struct {
*Base
Script []byte
Gas fixed8.Fixed8
}
//NewInvocation returns an invocation transaction
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func NewInvocation(ver version.TX) *Invocation {
basicTrans := createBaseTransaction(types.Invocation, ver)
invocation := &Invocation{}
invocation.Base = basicTrans
invocation.encodeExclusive = invocation.encodeExcl
invocation.decodeExclusive = invocation.decodeExcl
return invocation
}
func (c *Invocation) encodeExcl(bw *util.BinWriter) {
bw.VarUint(uint64(len(c.Script)))
bw.Write(c.Script)
switch c.Version {
case 0:
c.Gas = fixed8.Fixed8(0)
case 1:
bw.Write(&c.Gas)
default:
bw.Write(&c.Gas)
}
return
}
func (c *Invocation) decodeExcl(br *util.BinReader) {
lenScript := br.VarUint()
c.Script = make([]byte, lenScript)
br.Read(&c.Script)
switch c.Version {
case 0:
c.Gas = fixed8.Fixed8(0)
case 1:
br.Read(&c.Gas)
default:
br.Err = errors.New("invalid Version Number for Invocation Transaction")
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}
return
}