fix(crystal): wrap rescue in a begin

Author: n-rodriguez

modules/openapi-generator/src/main/resources/crystal/partial_oneof_module.mustache

@@ -85,49 +85,51 @@
     private def self.find_and_cast_into_type(klass, data)
       return if data.nil?
 
-      case klass.to_s
-      when "Boolean"
-        return data if data.instance_of?(TrueClass) || data.instance_of?(FalseClass)
-      when "Float"
-        return data if data.instance_of?(Float)
-      when "Integer"
-        return data if data.instance_of?(Integer)
-      when "Time"
-        return Time.parse(data)
-      when "Date"
-        return Date.parse(data)
-      when "String"
-        return data if data.instance_of?(String)
-      when "Object" # "type: object"
-        return data if data.instance_of?(Hash)
-      when /\AArray<(?<sub_type>.+)>\z/ # "type: array"
-        if data.instance_of?(Array)
-          sub_type = Regexp.last_match[:sub_type]
-          return data.map { |item| find_and_cast_into_type(sub_type, item) }
-        end
-      when /\AHash<String, (?<sub_type>.+)>\z/ # "type: object" with "additionalProperties: { ... }"
-        if data.instance_of?(Hash) && data.keys.all? { |k| k.instance_of?(Symbol) || k.instance_of?(String) }
-          sub_type = Regexp.last_match[:sub_type]
-          return data.each_with_object({} of String | Symbol => Bool | Float | Integer | Time | Date | String | Array | Hash) { |(k, v), hsh| hsh[k] = find_and_cast_into_type(sub_type, v) }
-        end
-      else # model
-        const = {{moduleName}}.const_get(klass)
-        if const
-          if const.respond_to?(:openapi_one_of) # nested oneOf model
-            model = const.build(data)
-            return model if model
-          else
-            # raise if data contains keys that are not known to the model
-            raise unless (data.keys - const.acceptable_attributes).empty?
-            model = const.build_from_hash(data)
-            return model if model && model.valid?
+      begin
+        case klass.to_s
+        when "Boolean"
+          return data if data.instance_of?(TrueClass) || data.instance_of?(FalseClass)
+        when "Float"
+          return data if data.instance_of?(Float)
+        when "Integer"
+          return data if data.instance_of?(Integer)
+        when "Time"
+          return Time.parse(data)
+        when "Date"
+          return Date.parse(data)
+        when "String"
+          return data if data.instance_of?(String)
+        when "Object" # "type: object"
+          return data if data.instance_of?(Hash)
+        when /\AArray<(?<sub_type>.+)>\z/ # "type: array"
+          if data.instance_of?(Array)
+            sub_type = Regexp.last_match[:sub_type]
+            return data.map { |item| find_and_cast_into_type(sub_type, item) }
+          end
+        when /\AHash<String, (?<sub_type>.+)>\z/ # "type: object" with "additionalProperties: { ... }"
+          if data.instance_of?(Hash) && data.keys.all? { |k| k.instance_of?(Symbol) || k.instance_of?(String) }
+            sub_type = Regexp.last_match[:sub_type]
+            return data.each_with_object({} of String | Symbol => Bool | Float | Integer | Time | Date | String | Array | Hash) { |(k, v), hsh| hsh[k] = find_and_cast_into_type(sub_type, v) }
+          end
+        else # model
+          const = {{moduleName}}.const_get(klass)
+          if const
+            if const.respond_to?(:openapi_one_of) # nested oneOf model
+              model = const.build(data)
+              return model if model
+            else
+              # raise if data contains keys that are not known to the model
+              raise unless (data.keys - const.acceptable_attributes).empty?
+              model = const.build_from_hash(data)
+              return model if model && model.valid?
+            end
           end
         end
-      end
 
-      raise # if no match by now, raise
-    rescue
-      raise SchemaMismatchError, "#{data} doesn't match the #{klass} type"
+        raise # if no match by now, raise
+      rescue
+        raise SchemaMismatchError, "#{data} doesn't match the #{klass} type"
+      end
     end
     {{/discriminator}}
   end