docopt argv deserialization takes a very long time

[axelchalon]

(via https://github.com/paritytech/ethabi/issues/79#issuecomment-368421077)

https://github.com/paritytech/ethabi/blob/master/cli/src/main.rs#L81
.deserialize() takes abnormally long to compute; computing time grows exponentially with number of arguments

ethabi encode params --lenient -v uint256 1 -v uint256 1 -v uint256 1 -v uint256 1

# hangs a couple seconds on .deserialize()

ethabi encode params --lenient -v uint256 1 -v uint256 1 -v uint256 1 -v uint256 1 -v uint256 1

# hangs with 100% cpu and a lot of memory usage for at least several minutes (had to kill the process)

[debris]

I believe this should be reported upstream in docopt repo

[debris]

might be related to docopt/docopt.rs#185

[debris]

and docopt/docopt.rs#207

[dvdplm]

docopt has been replaced by structopt in v10 and #164. Closing.