Compress identical method definitions

src/ameba/rule/lint/empty_loop.cr

@@ -52,11 +52,7 @@ module Ameba::Rule::Lint
       check_node(source, node, node.block)
     end
 
-    def test(source, node : Crystal::While)
+    def test(source, node : Crystal::While | Crystal::Until)
-      check_node(source, node, node.body) if literal?(node.cond)
-    end
-
-    def test(source, node : Crystal::Until)
       check_node(source, node, node.body) if literal?(node.cond)
     end
 

src/ameba/rule/lint/literal_in_condition.cr

@@ -33,15 +33,7 @@ module Ameba::Rule::Lint
       issue_for node, MSG if static_literal?(node.cond)
     end
 
-    def test(source, node : Crystal::If)
+    def test(source, node : Crystal::If | Crystal::Unless | Crystal::Case)
-      check_node source, node
-    end
-
-    def test(source, node : Crystal::Unless)
-      check_node source, node
-    end
-
-    def test(source, node : Crystal::Case)
       check_node source, node
     end
   end

src/ameba/rule/lint/shadowing_outer_local_var.cr

@@ -45,11 +45,7 @@ module Ameba::Rule::Lint
       ]
     end
 
-    def test(source, node : Crystal::ProcLiteral, scope : AST::Scope)
+    def test(source, node : Crystal::ProcLiteral | Crystal::Block, scope : AST::Scope)
-      find_shadowing source, scope
-    end
-
-    def test(source, node : Crystal::Block, scope : AST::Scope)
       find_shadowing source, scope
     end
 

src/ameba/rule/lint/useless_condition_in_when.cr

@@ -61,12 +61,7 @@ module Ameba::Rule::Lint
         @parent.accept self
       end
 
-      def visit(node : Crystal::If)
+      def visit(node : Crystal::If | Crystal::Unless)
-        @rule.check_node(@source, @parent, node.cond)
-        true
-      end
-
-      def visit(node : Crystal::Unless)
         @rule.check_node(@source, @parent, node.cond)
         true
       end

src/ameba/rule/style/type_names.cr

@@ -66,23 +66,7 @@ module Ameba::Rule::Style
       issue_for node, MSG % {expected, name}
     end
 
-    def test(source, node : Crystal::ClassDef)
+    def test(source, node : Crystal::Alias | Crystal::ClassDef | Crystal::ModuleDef | Crystal::LibDef | Crystal::EnumDef)
-      check_node(source, node)
-    end
-
-    def test(source, node : Crystal::Alias)
-      check_node(source, node)
-    end
-
-    def test(source, node : Crystal::LibDef)
-      check_node(source, node)
-    end
-
-    def test(source, node : Crystal::EnumDef)
-      check_node(source, node)
-    end
-
-    def test(source, node : Crystal::ModuleDef)
       check_node(source, node)
     end
   end

src/ameba/rule/style/variable_names.cr

@@ -39,15 +39,7 @@ module Ameba::Rule::Style
       VarVisitor.new self, source
     end
 
-    def test(source, node : Crystal::Var)
+    def test(source, node : Crystal::Var | Crystal::InstanceVar | Crystal::ClassVar)
-      check_node source, node
-    end
-
-    def test(source, node : Crystal::InstanceVar)
-      check_node source, node
-    end
-
-    def test(source, node : Crystal::ClassVar)
       check_node source, node
     end