Adding the correct accessList parameter when calling a contract can
reduce gas consumption. However, the current version only allows adding
the accessList manually when constructing the transaction. This PR can
provide convenience for saving gas.
* api/bind: Add CallOpts.BlockHash to allow calling contracts at a specific block hash.
* ethclient: Add BalanceAtHash, NonceAtHash and StorageAtHash functions
Adds error handling for the case that UnpackLog or UnpackLogIntoMap is called with a log that has zero topics.
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Co-authored-by: Sina Mahmoodi <itz.s1na@gmail.com>
If a pending contract call errors, return that error right away rather
than ignoring it to allow an error somewhere else. This is helpful for
callers to know if perhaps a call failed because of the context deadline
being expired. This change mirrors the behavior of non-pending contract
calls.
This fixes a bug where gas-related fields of the TransactOpts passed
to transaction methods would be modified, skipping gas estimation for
subsequent transactions.
Co-authored-by: Yondon Fu <yondon.fu@gmail.com>
Co-authored-by: Felix Lange <fjl@twurst.com>
This fixes transaction sending in the case where an app using go-ethereum v1.10.4
is talking to a pre-EIP-1559 RPC node. In this case, the eth_maxPriorityFeePerGas
endpoint is not available and we can only rely on eth_gasPrice.
* accounts/abi/bind: fix bounded contracts and sim backend for 1559
* accounts/abi/bind, ethclient: don't rely on chain config for gas prices
* all: enable London for all internal tests
* les: get receipt type info in les tests
* les: fix weird test
Co-authored-by: Martin Holst Swende <martin@swende.se>
This commit enables users to specify which signer they want to use while creating their transactOpts.
Previously all contract interactions used the homestead signer. Now a user can specify whether they
want to sign with homestead or EIP155 and specify the chainID which adds another layer of security.
Closes#16484
* accounts/abi/bind: added test cases for waitDeployed
* accounts/abi/bind: added test case for boundContract
* accounts/abi/bind: removed unnecessary resolve methods
* accounts/abi: moved topics from /bind to /abi
* accounts/abi/bind: cleaned up format... functions
* accounts/abi: improved log message
* accounts/abi: added type tests
* accounts/abi/bind: remove superfluous template methods
* accounts/abi: prevent recalculation of ID, Sig and String
* accounts/abi: fixed unpacking of no values
* accounts/abi: multiple fixes to arguments
* accounts/abi: refactored methodName and eventName
This commit moves the complicated logic of how we assign method names
and event names if they already exist into their own functions for
better readability.
* accounts/abi: prevent recalculation of internal
In this commit, I changed the way we calculate the string
representations, sig representations and the id's of methods. Before
that these fields would be recalculated everytime someone called .Sig()
.String() or .ID() on a method or an event.
Additionally this commit fixes issue #20856 as we assign names to inputs
with no name (input with name "" becomes "arg0")
* accounts/abi: added unnamed event params test
* accounts/abi: fixed rebasing errors in method sig
* accounts/abi: fixed rebasing errors in method sig
* accounts/abi: addressed comments
* accounts/abi: added FunctionType enumeration
* accounts/abi/bind: added test for unnamed arguments
* accounts/abi: improved readability in NewMethod, nitpicks
* accounts/abi: method/eventName -> overloadedMethodName
* accounts/abi: implement new fackball functions
In Solidity v0.6.0, the original fallback is separated
into two different sub types: fallback and receive.
This PR addes the support for parsing new format abi
and the relevant abigen functionalities.
* accounts/abi: fix unit tests
* accounts/abi: minor fixes
* accounts/abi, mobile: support jave binding
* accounts/abi: address marius's comment
* accounts/abi: Work around the uin64 conversion issue
Co-authored-by: Guillaume Ballet <gballet@gmail.com>
The gas price was not passed to the `EstimateGas` function. As a result,
conditional execution paths depending on `tx.gasprice` could be not
correctly processed and we could get invalid gas estimates for contract
function calls.
The abi package already supports function overload by adding a suffix to the overloaded function name, but it uses the function name with suffix to calculate signature(both for the event and method).
This PR fixes it by adding a new field named RawName, which can be used to calcuate all signatures but use Name to distinguish different overloaded function.
There is no need to depend on the old context package now that the
minimum Go version is 1.7. The move to "context" eliminates our weird
vendoring setup. Some vendored code still uses golang.org/x/net/context
and it is now vendored in the normal way.
This change triggered new vet checks around context.WithTimeout which
didn't fire with golang.org/x/net/context.
In this commit, contract bindings and their backend start using the
Ethereum Go API interfaces offered by ethclient. This makes ethclient a
suitable replacement for the old remote backend and gets us one step
closer to the final stable Go API that is planned for go-ethereum 1.5.
The changes in detail:
* Pending state is optional for read only contract bindings.
BoundContract attempts to discover the Pending* methods via an
interface assertion. There are a couple of advantages to this:
ContractCaller is just two methods and can be implemented on top of
pretty much anything that provides Ethereum data. Since the backend
interfaces are now disjoint, ContractBackend can simply be declared as
a union of the reader and writer side.
* Caching of HasCode is removed. The caching could go wrong in case of
chain reorganisations and removing it simplifies the code a lot.
We'll figure out a performant way of providing ErrNoCode before the
1.5 release.
* BoundContract now ensures that the backend receives a non-nil context
with every call.
