{"id":86556,"library":"constrain","title":"Constrain","description":"Allows checking if an object matches a class expression, typically used to validate method parameter types dynamically.","status":"active","version":"0.10.0","language":"ruby","source_language":null,"source_url":"https://github.com/clrgit/constrain","tags":["type-checking","validation","parameters","dynamic"],"install":[{"cmd":"gem install constrain","lang":"bash","label":"gem install"},{"cmd":"# Gemfile\ngem 'constrain', '~> 0.10.0'","lang":"ruby","label":"Gemfile"}],"dependencies":[],"imports":[{"symbol":"Constrain","correct":"require 'constrain'"}],"quickstart":{"code":"require 'constrain'\ninclude Constrain\n\ndef greet(name)\n  constrain name, String\n  \"Hello, #{name}!\"\nend\n\nputs greet('World')","lang":"ruby","description":"Validates that the parameter is a String using constrain."},"warnings":[],"env_vars":null,"search_vec":"'allow':2 'check':3,21 'class':9 'constrain':1 'dynam':18,24 'express':10 'match':7 'method':15 'object':6 'paramet':16,23 'type':17,20 'type-check':19 'typic':11 'use':12 'valid':14,22","created_at":"2026-06-19T08:03:57.116374+00:00","updated_at":"2026-06-19T08:03:57.116374+00:00","problems":[],"ecosystem":"rubygems","meta_description":null,"install_score":null,"quickstart_score":null,"quickstart_tag":null,"pypi_latest":null,"cli_name":null,"cli_version":null,"type":"library","homepage":"https://github.com/clrgit/constrain/","github":"https://github.com/clrgit/constrain","docs":"http://www.rubydoc.info/gems/constrain/","changelog":null,"pypi":null,"npm":null,"openapi_spec":null,"status_page":null,"smithery":null,"categories":["utility"],"base_url":null,"auth_type":null,"provenance":{"verified_status":null,"verified_at":null,"last_verified":"2026-06-19","next_check":"2026-12-16","install_tag":null}}