{"id":24594300,"url":"https://github.com/nilern/ooee","last_synced_at":"2026-02-12T09:31:16.539Z","repository":{"id":79677598,"uuid":"79663577","full_name":"nilern/ooee","owner":"nilern","description":"Object oriented extensible effects","archived":false,"fork":false,"pushed_at":"2017-01-25T19:25:33.000Z","size":9,"stargazers_count":0,"open_issues_count":0,"forks_count":0,"subscribers_count":1,"default_branch":"master","last_synced_at":"2025-09-14T15:51:20.341Z","etag":null,"topics":[],"latest_commit_sha":null,"homepage":"","language":"Scheme","has_issues":true,"has_wiki":null,"has_pages":null,"mirror_url":null,"source_name":null,"license":null,"status":null,"scm":"git","pull_requests_enabled":true,"icon_url":"https://github.com/nilern.png","metadata":{"files":{"readme":"README.md","changelog":null,"contributing":null,"funding":null,"license":null,"code_of_conduct":null,"threat_model":null,"audit":null,"citation":null,"codeowners":null,"security":null,"support":null,"governance":null,"roadmap":null,"authors":null,"dei":null,"publiccode":null,"codemeta":null}},"created_at":"2017-01-21T18:15:00.000Z","updated_at":"2017-01-22T13:51:01.000Z","dependencies_parsed_at":"2023-05-14T13:45:18.613Z","dependency_job_id":null,"html_url":"https://github.com/nilern/ooee","commit_stats":null,"previous_names":[],"tags_count":0,"template":false,"template_full_name":null,"purl":"pkg:github/nilern/ooee","repository_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/nilern%2Fooee","tags_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/nilern%2Fooee/tags","releases_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/nilern%2Fooee/releases","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/nilern%2Fooee/manifests","owner_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners/nilern","download_url":"https://codeload.github.com/nilern/ooee/tar.gz/refs/heads/master","sbom_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/nilern%2Fooee/sbom","scorecard":null,"host":{"name":"GitHub","url":"https://github.com","kind":"github","repositories_count":286080680,"owners_count":29362773,"icon_url":"https://github.com/github.png","version":null,"created_at":"2022-05-30T11:31:42.601Z","updated_at":"2026-02-12T08:51:36.827Z","status":"ssl_error","status_checked_at":"2026-02-12T08:51:26.849Z","response_time":55,"last_error":"SSL_read: unexpected eof while reading","robots_txt_status":"success","robots_txt_updated_at":"2025-07-24T06:49:26.215Z","robots_txt_url":"https://github.com/robots.txt","online":false,"can_crawl_api":true,"host_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub","repositories_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories","repository_names_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repository_names","owners_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners"}},"keywords":[],"created_at":"2025-01-24T11:14:18.702Z","updated_at":"2026-02-12T09:31:16.534Z","avatar_url":"https://github.com/nilern.png","language":"Scheme","funding_links":[],"categories":[],"sub_categories":[],"readme":"# Object Oriented Extensible Effects\n\n(See [Eff](http://www.eff-lang.org/) for terminology.)\n\n* An effect type is a class\n* An effect instance is an instance of the class\n    - Operations are just methods that take a delimited continuation and an\n      arbitrary number of other arguments\n    - Resources are just fields\n    - `val` and `finally` are methods that don't take the continuation\n* A computation is just a special message send that prepends a delimited\n  continuation to the argument list\n    - The main purpose of installing a handler is actually setting up the\n      delimiter and storing the prompt tag in the effect instance\n        * Calls to `val` and `finally` are also set up on top of and below the\n          prompt, respectively; but this is mostly a convenience\n    - Overriding methods at the handler setup point is convenient in some\n      situations but complects defining the effect with installing it as a\n      handler.\n        * In Eff effect instances actually start out with *no methods at all*.\n        * Needing to create a new class for every effect handler is *beyond\n          Java-clunky* but a prototypal object model could help avoid that.\n\n## TODO\n\n- [x] `finally`\n- [ ] install several instances as handlers at once\n- [ ] investigate prototypal object model\n- [ ] use something more mainstream than Scheme\n    * Multi-prompt multi-shot delimited continuation implementations are hard to\n      find...\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fnilern%2Fooee","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fnilern%2Fooee","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fnilern%2Fooee/lists"}