func (self *Env) CanTransfer(from vm.Account, balance *big.Int) bool {
if self.skipTransfer {
if self.initial {
self.initial = false
return true
}
}
return from.Balance().Cmp(balance) >= 0
}
func (self *Env) Transfer(from, to vm.Account, amount *big.Int) error {
if self.skipTransfer {
// ugly hack
if self.initial {
self.initial = false
return nil
}
if from.Balance().Cmp(amount) < 0 {
return errors.New("Insufficient balance in account")
}
return nil
}
return vm.Transfer(from, to, amount)
}
// generic transfer method
func Transfer(from, to vm.Account, amount *big.Int) {
from.SubBalance(amount)
to.AddBalance(amount)
}
func (self *VMEnv) CanTransfer(from vm.Account, balance *big.Int) bool {
return from.Balance().Cmp(balance) >= 0
}