{"action":"opened","issue":{"url":"https://api.github.com/repos/paritytech/parity/issues/9035","repository_url":"https://api.github.com/repos/paritytech/parity","labels_url":"https://api.github.com/repos/paritytech/parity/issues/9035/labels{/name}","comments_url":"https://api.github.com/repos/paritytech/parity/issues/9035/comments","events_url":"https://api.github.com/repos/paritytech/parity/issues/9035/events","html_url":"https://github.com/paritytech/parity/issues/9035","id":337953503,"node_id":"MDU6SXNzdWUzMzc5NTM1MDM=","number":9035,"title":"Add 'Step' to VM?","user":{"login":"InsidiousMind","id":6452260,"node_id":"MDQ6VXNlcjY0NTIyNjA=","avatar_url":"https://avatars0.githubusercontent.com/u/6452260?v=4","gravatar_id":"","url":"https://api.github.com/users/InsidiousMind","html_url":"https://github.com/InsidiousMind","followers_url":"https://api.github.com/users/InsidiousMind/followers","following_url":"https://api.github.com/users/InsidiousMind/following{/other_user}","gists_url":"https://api.github.com/users/InsidiousMind/gists{/gist_id}","starred_url":"https://api.github.com/users/InsidiousMind/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/InsidiousMind/subscriptions","organizations_url":"https://api.github.com/users/InsidiousMind/orgs","repos_url":"https://api.github.com/users/InsidiousMind/repos","events_url":"https://api.github.com/users/InsidiousMind/events{/privacy}","received_events_url":"https://api.github.com/users/InsidiousMind/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"assignees":[],"milestone":null,"comments":0,"created_at":"2018-07-03T15:38:23Z","updated_at":"2018-07-03T15:38:23Z","closed_at":null,"author_association":"NONE","body":"I am currently using the Parity EVM for a project of mine, and was wondering what the community thought of adding some extra functionality to the EVM.\r\n\r\nSpecifically, I think it would be useful to add a 'step' function to the vm::Vm trait (and consequently to the Interpreter struct that implements the trait) allowing a program to only execute one instruction at a time. Adding a public-facing function like this could be useful for a variety of reasons, but mostly for real-time debugging purposes and code-analysis. \r\n\r\nI have noticed that a few other VM's do have this 'hook' (SputnikVm, ethereumjs-vm)\r\n\r\n(I could even implement this, it would be fairly simple)\r\n\r\nI'm fairly new to this project, however, so I don't want to barge in and start suggesting things that would cause issues I am not aware of. I also don't want to add needless bloat to the EVM implementation, this is merely a suggestion."}}
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