{"id":18695075,"url":"https://github.com/rybla/empirior","last_synced_at":"2025-11-08T13:30:32.309Z","repository":{"id":81618173,"uuid":"200076689","full_name":"rybla/Empirior","owner":"rybla","description":"A simple imperitive language supporting gradual Hoare-logical verification.","archived":false,"fork":false,"pushed_at":"2019-08-11T04:06:30.000Z","size":32,"stargazers_count":0,"open_issues_count":0,"forks_count":0,"subscribers_count":1,"default_branch":"master","last_synced_at":"2024-12-28T03:20:45.683Z","etag":null,"topics":[],"latest_commit_sha":null,"homepage":null,"language":"Haskell","has_issues":true,"has_wiki":null,"has_pages":null,"mirror_url":null,"source_name":null,"license":"bsd-3-clause","status":null,"scm":"git","pull_requests_enabled":true,"icon_url":"https://github.com/rybla.png","metadata":{"files":{"readme":"README.md","changelog":"ChangeLog.md","contributing":null,"funding":null,"license":"LICENSE","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}},"created_at":"2019-08-01T15:34:32.000Z","updated_at":"2019-08-11T04:06:32.000Z","dependencies_parsed_at":"2023-03-06T01:15:21.277Z","dependency_job_id":null,"html_url":"https://github.com/rybla/Empirior","commit_stats":null,"previous_names":["rybla/empirior"],"tags_count":0,"template":false,"template_full_name":null,"repository_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/rybla%2FEmpirior","tags_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/rybla%2FEmpirior/tags","releases_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/rybla%2FEmpirior/releases","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/rybla%2FEmpirior/manifests","owner_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners/rybla","download_url":"https://codeload.github.com/rybla/Empirior/tar.gz/refs/heads/master","host":{"name":"GitHub","url":"https://github.com","kind":"github","repositories_count":239558907,"owners_count":19658927,"icon_url":"https://github.com/github.png","version":null,"created_at":"2022-05-30T11:31:42.601Z","updated_at":"2022-07-04T15:15:14.044Z","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":"2024-11-07T11:13:50.917Z","updated_at":"2025-11-08T13:30:32.226Z","avatar_url":"https://github.com/rybla.png","language":"Haskell","funding_links":[],"categories":[],"sub_categories":[],"readme":"# Empirior\n\nA simple imperitive language supporting gradual Hoare-logical verification.\n\n## Grammar\n\n```\n  \u003cprogram\u003e ::= \u003cstatement\u003e\n\n  \u003cstatement\u003e ::=\n    | function \u003cname\u003e ([\u003cname\u003e : \u003ctype\u003e]) \u003ctype\u003e \u003cformula\u003e \u003cformula\u003e \u003cstatement\u003e\n    | predicate \u003cname\u003e ([\u003cname\u003e : \u003ctype\u003e]) \u003cformula\u003e\n    | assert \u003cformula\u003e\n    | if \u003cexpression\u003e { \u003cstatement\u003e } else { \u003cstatement\u003e }\n    | while \u003cexpression\u003e { \u003cstatement\u003e }\n    | fold \u003cname\u003e ( [\u003cexpression\u003e] ) // fold predication\n    | unfold \u003cname\u003e ( [\u003cexpression\u003e] ) // unfold predication\n    | \u003cname\u003e : \u003ctype\u003e // variable declaration\n    | \u003cname\u003e := \u003cexpression\u003e // variable assignment\n    | return \u003cexpression\u003e\n    | \u003cstatement\u003e ; \u003cstatement\u003e\n    | skip\n\n  \u003cformula\u003e ::=\n    | ? /\\ \u003cprecise-formula\u003e // imprecise formula\n    | \u003cprecise-formula\u003e\n\n  \u003cprecise-formula\u003e ::=\n    | \u003cexpression\u003e\n    | ~ \u003cprecise-formula\u003e // negation\n    | \u003cprecise-formula\u003e \u003cformula-operator\u003e \u003cprecise-formula\u003e\n    | \u003cname\u003e ( [\u003cexpression\u003e] ) // predication\n    | if \u003cexpression\u003e then \u003cprecise-formula\u003e else \u003cprecise-formula\u003e\n    | unfolding \u003cname\u003e ( [\u003cexpression\u003e] ) in \u003cprecise-formula\u003e // unfolding predication\n\n  \u003cformula-operator\u003e ::= /\\ | \\/\n\n  \u003cexpression\u003e ::=\n    | \u003cvalue\u003e\n    | \u003cname\u003e // variable\n    | \u003cexpression\u003e \u003cexpression-operator\u003e \u003cexpression\u003e\n    | \u003cname\u003e ( [\u003cexpression\u003e] )\n\n  \u003cexpression-operator\u003e ::=\n    | + | - | *\n    | \u003e | \u003e= | \u003c | \u003c= | = | !=\n    | \u0026\u0026 | ||\n\n  \u003cvalue\u003e ::=\n    | unit\n    | \u003cboolean\u003e\n    | \u003cinteger\u003e\n\n  \u003ctype\u003e ::=\n    | Void\n    | Unit\n    | Boolean\n    | Integer\n    | Function ([\u003ctype\u003e]) -\u003e Type\n    | Predicate ([\u003ctype\u003e])\n\n  \u003cname\u003e ::= \u003cstring\u003e\n```\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Frybla%2Fempirior","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Frybla%2Fempirior","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Frybla%2Fempirior/lists"}