Simplifies predicate functions for array, object and tuple parsers

Author: dragonwasrobot

lib/parser/array_parser.ex

@@ -27,19 +27,15 @@ defmodule JS2E.Parser.ArrayParser do
   iex> type?(%{})
   false
 
-  iex> type?(%{"type" => "array"})
-  false
-
-  iex> type?(%{"type" => "array", "items" => %{"$ref" => "#foo"}})
+  iex> type?(%{"items" => %{"$ref" => "#foo"}})
   true
 
   """
   @impl JS2E.Parser.ParserBehaviour
   @spec type?(Types.schemaNode()) :: boolean
   def type?(schema_node) do
-    type = schema_node["type"]
     items = schema_node["items"]
-    type == "array" && is_map(items)
+    is_map(items)
   end
 
   @doc ~S"""

lib/parser/object_parser.ex

@@ -35,21 +35,16 @@ defmodule JS2E.Parser.ObjectParser do
   iex> type?(%{})
   false
 
-  iex> type?(%{"type" => "object"})
-  false
-
-  iex> an_object = %{"type" => "object",
-  ...>              "properties" => %{"name" => %{"type" => "string"}}}
+  iex> an_object = %{"properties" => %{"name" => %{"type" => "string"}}}
   iex> type?(an_object)
   true
 
   """
   @impl JS2E.Parser.ParserBehaviour
   @spec type?(map) :: boolean
   def type?(schema_node) do
-    type = schema_node["type"]
     properties = schema_node["properties"]
-    type == "object" && is_map(properties)
+    is_map(properties)
   end
 
   @doc ~S"""

lib/parser/tuple_parser.ex

@@ -28,21 +28,16 @@ defmodule JS2E.Parser.TupleParser do
   iex> type?(%{})
   false
 
-  iex> type?(%{"type" => "array"})
-  false
-
-  iex> aTuple = %{"type" => "array",
-  ...>            "items" => [%{"$ref" => "#foo"}, %{"$ref" => "#bar"}]}
+  iex> aTuple = %{"items" => [%{"$ref" => "#foo"}, %{"$ref" => "#bar"}]}
   iex> type?(aTuple)
   true
 
   """
   @impl JS2E.Parser.ParserBehaviour
   @spec type?(Types.node()) :: boolean
   def type?(schema_node) do
-    type = schema_node["type"]
     items = schema_node["items"]
-    type == "array" && is_list(items)
+    is_list(items)
   end
 
   @doc ~S"""