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def match(subject,closure) { def whenMap = [:],otherwise = null closure.when = { map -> whenMap.putAll(map) } closure.otherwise = { otherwise = it } closure.resolveStrategy = Closure.DELEGATE_FIRST closure() def result = whenMap.find { condition,value -> subject in condition } return result ? result.value : otherwise } def manufacturer(car) { match(car) { when "Focus": "Ford" when "Navigator": "Lincoln" when "Camry": "Toyota" when "Civic": "Honda" when "Patriot": "Jeep" when "Jetta": "VW" when "Ceyene": "Porsche" when "Outback": "Subaru" when "520i": "BMW" when "Tundra": "Nissan" otherwise "Unknown" } } println "The Patriot is made by ${manufacturer('Patriot')}" println "The QQ is made by ${manufacturer('QQ')}"
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