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accounts/abi: estimate gas before send transaction

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makes error happen earlier
This commit is contained in:
nkbai 2017-12-28 09:29:04 +08:00
parent 9d187f0238
commit 47e23f9b87
1 changed files with 15 additions and 14 deletions
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3
accounts/abi/bind/base.go
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@ -189,7 +189,6 @@ func (c *BoundContract) transact(opts *TransactOpts, contract *common.Address, i
}
}
gasLimit := opts.GasLimit
if gasLimit == nil {
// Gas estimation cannot succeed without code for method invocations
if contract != nil {
if code, err := c.transactor.PendingCodeAt(ensureContext(opts.Context), c.address); err != nil {
@ -204,6 +203,8 @@ func (c *BoundContract) transact(opts *TransactOpts, contract *common.Address, i
if err != nil {
return nil, fmt.Errorf("failed to estimate gas needed: %v", err)
}
if opts.GasLimit != nil && opts.GasLimit.Cmp(gasLimit) < 0 {
return nil, fmt.Errorf("Gas required is %s, it exceeds limit: %s. An important gas estimation might also be the sign of a problem in the contract code", gasLimit, opts.GasLimit)
}
// Create the transaction, sign it and schedule it for execution
var rawTx *types.Transaction