Although current two implementations(ledgerDriver, trezorDriver) of interface driver.Close do not actually return any error. Instead, they only return nil.
But since the declaration of Close function returns error, it is better to check the returned error in case in future some new implementation of Close function returns error and we may forget to modify the function which invokes Close function at that time.
* signer/clef: make use of json-rpc notification
* signer: tidy up output of OnApprovedTx
* accounts/external, signer: implement remote signing of text, make accounts_sign take hexdata
* clef: added basic testscript
* signer, external, api: add clique signing test to debug rpc, fix clique signing in clef
* signer: fix clique interoperability between geth and clef
* clef: rename networkid switch to chainid
* clef: enable chainid flag
* clef, signer: minor changes from review
* clef: more tests for signer
* Named functions and defined a basic EIP191 content type list
* Written basic content type functions
* Added ecRecover method in the clef api
* Updated the extapi changelog and addded indications in the README
* Changed the version of the external API
* Added tests for 0x45
* Implementing UnmarshalJSON() for TypedData
* Working on TypedData
* Solved the auditlog issue
* Changed method to signTypedData
* Changed mimes and implemented the 'encodeType' function for EIP-712
* Polished docstrings, ran goimports and swapped fmt.Errorf with errors.New where possible
* Drafted recursive encodeData
* Ran goimports and gofmt
* Drafted first version of EIP-712, including tests
* Temporarily switched to using common.Address in tests
* Drafted text/validator and and rewritten []byte as hexutil.Bytes
* Solved stringified address encoding issue
* Changed the property type required by signData from bytes to interface{}
* Fixed bugs in 'data/typed' signs
* Brought legal warning back after temporarily disabling it for development
* Added example RPC calls for account_signData and account_signTypedData
* Named functions and defined a basic EIP191 content type list
* Written basic content type functions
* Added ecRecover method in the clef api
* Updated the extapi changelog and addded indications in the README
* Added tests for 0x45
* Implementing UnmarshalJSON() for TypedData
* Working on TypedData
* Solved the auditlog issue
* Changed method to signTypedData
* Changed mimes and implemented the 'encodeType' function for EIP-712
* Polished docstrings, ran goimports and swapped fmt.Errorf with errors.New where possible
* Drafted recursive encodeData
* Ran goimports and gofmt
* Drafted first version of EIP-712, including tests
* Temporarily switched to using common.Address in tests
* Drafted text/validator and and rewritten []byte as hexutil.Bytes
* Solved stringified address encoding issue
* Changed the property type required by signData from bytes to interface{}
* Fixed bugs in 'data/typed' signs
* Brought legal warning back after temporarily disabling it for development
* Added example RPC calls for account_signData and account_signTypedData
* Polished and fixed PR
* Polished and fixed PR
* Solved malformed data panics and also wrote tests
* Solved malformed data panics and also wrote tests
* Added alphabetical sorting to type dependencies
* Added alphabetical sorting to type dependencies
* Added pretty print to data/typed UI
* Added pretty print to data/typed UI
* signer: more tests for typed data
* signer: more tests for typed data
* Fixed TestMalformedData4 errors and renamed IsValid to Validate
* Fixed TestMalformedData4 errors and renamed IsValid to Validate
* Fixed more new failing tests and deanonymised some functions
* Fixed more new failing tests and deanonymised some functions
* Added types to EIP712 output in cliui
* Added types to EIP712 output in cliui
* Fixed regexp issues
* Fixed regexp issues
* Added pseudo-failing test
* Added pseudo-failing test
* Fixed false positive test
* Fixed false positive test
* Added PrettyPrint method
* Added PrettyPrint method
* signer: refactor formatting and UI
* signer: make ui use new message format for signing
* Fixed breaking changes
* Fixed rules_test failing test
* Added extra regexp for reference types
* signer: more hard types
* Fixed failing test, formatted files
* signer: use golang/x keccak
* Fixed goimports error
* clef, signer: address some review concerns
* Implemented latest recommendations
* Fixed comments and uintint256 issue
* accounts, signer: fix mimetypes, add interface to sign data with passphrase
* signer, accounts: remove duplicated code, pass hash preimages to signing
* signer: prevent panic in type assertions, make cliui print rawdata as quotable-safe
* signer: linter fixes, remove deprecated crypto dependency
* accounts: fix goimport
