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op-bindings

This package contains built go bindings of the smart contracts. It must be updated after any changes to the smart contracts to ensure that the bindings are up to date.

The bindings include the bytecode for each contract so that go based tests can deploy the contracts. There are also more files that include the deployed bytecode as well as the storage layout. These are used to dynamically set bytecode and storage slots in state.

Dependencies

  • abigen version 1.10.25
  • make

To check the version of abigen, run the command abigen --version.

abigen

The abigen tool is part of go-ethereum and can be used to build go bindings for smart contracts. It can be installed with go using the commands:

$ go get -u github.com/ethereum/go-ethereum
$ cd $GOPATH/src/github.com/ethereum/go-ethereum/
$ make devtools

The geth docs for abigen can be found here.