{"action":"closed","issue":{"url":"https://api.github.com/repos/metaborg/dynsem/issues/25","repository_url":"https://api.github.com/repos/metaborg/dynsem","labels_url":"https://api.github.com/repos/metaborg/dynsem/issues/25/labels{/name}","comments_url":"https://api.github.com/repos/metaborg/dynsem/issues/25/comments","events_url":"https://api.github.com/repos/metaborg/dynsem/issues/25/events","html_url":"https://github.com/metaborg/dynsem/issues/25","id":154168052,"number":25,"title":"Late failing pattern match binds variables","user":{"login":"vvergu","id":2950659,"avatar_url":"https://avatars.githubusercontent.com/u/2950659?v=3","gravatar_id":"","url":"https://api.github.com/users/vvergu","html_url":"https://github.com/vvergu","followers_url":"https://api.github.com/users/vvergu/followers","following_url":"https://api.github.com/users/vvergu/following{/other_user}","gists_url":"https://api.github.com/users/vvergu/gists{/gist_id}","starred_url":"https://api.github.com/users/vvergu/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/vvergu/subscriptions","organizations_url":"https://api.github.com/users/vvergu/orgs","repos_url":"https://api.github.com/users/vvergu/repos","events_url":"https://api.github.com/users/vvergu/events{/privacy}","received_events_url":"https://api.github.com/users/vvergu/received_events","type":"User","site_admin":false},"labels":[{"url":"https://api.github.com/repos/metaborg/dynsem/labels/bug","name":"bug","color":"fc2929"},{"url":"https://api.github.com/repos/metaborg/dynsem/labels/invalid","name":"invalid","color":"e6e6e6"}],"state":"closed","locked":false,"assignee":{"login":"vvergu","id":2950659,"avatar_url":"https://avatars.githubusercontent.com/u/2950659?v=3","gravatar_id":"","url":"https://api.github.com/users/vvergu","html_url":"https://github.com/vvergu","followers_url":"https://api.github.com/users/vvergu/followers","following_url":"https://api.github.com/users/vvergu/following{/other_user}","gists_url":"https://api.github.com/users/vvergu/gists{/gist_id}","starred_url":"https://api.github.com/users/vvergu/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/vvergu/subscriptions","organizations_url":"https://api.github.com/users/vvergu/orgs","repos_url":"https://api.github.com/users/vvergu/repos","events_url":"https://api.github.com/users/vvergu/events{/privacy}","received_events_url":"https://api.github.com/users/vvergu/received_events","type":"User","site_admin":false},"milestone":null,"comments":1,"created_at":"2016-05-11T06:18:40Z","updated_at":"2016-05-13T10:58:20Z","closed_at":"2016-05-13T10:58:20Z","body":"A nested pattern match which leave early variables bound. Example premise:\r\n\r\n`Plus(Lit(1), Minus(Lit(2), Lit(3)) => Plus(e1, Plus(_, _))`\r\n\r\nThe variable `e1` will be bound although the pattern match fails. This is not an issue in normal match premises but is a problem in the merge point premise and the future case pattern match premise (https://github.com/metaborg/dynsem/issues/26)."}}