neoneo-go/pkg/rpc/server/testdata/test_contract.go

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package testdata
import (
"github.com/nspcc-dev/neo-go/pkg/interop"
"github.com/nspcc-dev/neo-go/pkg/interop/contract"
"github.com/nspcc-dev/neo-go/pkg/interop/native/management"
"github.com/nspcc-dev/neo-go/pkg/interop/runtime"
"github.com/nspcc-dev/neo-go/pkg/interop/storage"
)
const (
totalSupply = 1000000
decimals = 2
)
func Init() bool {
ctx := storage.GetContext()
h := runtime.GetExecutingScriptHash()
amount := totalSupply
storage.Put(ctx, h, amount)
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runtime.Notify("Transfer", []byte{}, h, amount)
return true
}
func Transfer(from, to interop.Hash160, amount int, data interface{}) bool {
ctx := storage.GetContext()
if len(from) != 20 {
runtime.Log("invalid 'from' address")
return false
}
if len(to) != 20 {
runtime.Log("invalid 'to' address")
return false
}
if amount < 0 {
runtime.Log("invalid amount")
return false
}
var fromBalance int
val := storage.Get(ctx, from)
if val != nil {
fromBalance = val.(int)
}
if fromBalance < amount {
runtime.Log("insufficient funds")
return false
}
fromBalance -= amount
storage.Put(ctx, from, fromBalance)
var toBalance int
val = storage.Get(ctx, to)
if val != nil {
toBalance = val.(int)
}
toBalance += amount
storage.Put(ctx, to, toBalance)
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runtime.Notify("Transfer", from, to, amount)
if management.GetContract(to) != nil {
contract.Call(to, "onNEP17Payment", contract.All, from, amount, data)
}
return true
}
func BalanceOf(account interop.Hash160) int {
ctx := storage.GetContext()
if len(account) != 20 {
panic("invalid address")
}
var amount int
val := storage.Get(ctx, account)
if val != nil {
amount = val.(int)
}
return amount
}
func Symbol() string {
return "RUB"
}
func Decimals() int {
return decimals
}
func TotalSupply() int {
return totalSupply
}
func PutValue(key []byte, value []byte) bool {
ctx := storage.GetContext()
storage.Put(ctx, key, value)
return true
}