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Author: leebyron

spec/Section 4 -- Introspection.md

@@ -292,7 +292,8 @@ Fields\:
 * `fields` must return the set of fields that can be selected for this type.
   * Accepts the argument `includeDeprecated` which defaults to {false}. If
     {true}, deprecated fields are also returned.
-* `interfaces` must return the set of interfaces that an object implements.
+* `interfaces` must return the set of interfaces that an object implements
+  (if none, `interfaces` must return the empty set).
 * All other fields must return {null}.
 
 
@@ -327,7 +328,8 @@ Fields\:
 * `fields` must return the set of fields required by this interface.
   * Accepts the argument `includeDeprecated` which defaults to {false}. If
     {true}, deprecated fields are also returned.
-* `interfaces` must return the set of interfaces that this interface implements.
+* `interfaces` must return the set of interfaces that an object implements
+  (if none, `interfaces` must return the empty set).
 * `possibleTypes` returns the list of types that implement this interface.
   They must be object types.
 * All other fields must return {null}.
@@ -342,8 +344,8 @@ Fields\:
 * `kind` must return `__TypeKind.ENUM`.
 * `name` must return a String.
 * `description` may return a String or {null}.
-* `enumValues` must return the set of `EnumValue`. There must be at least one
-  and they must have unique names.
+* `enumValues` must return the set of enum values as a list of `__EnumValue`.
+  There must be at least one and they must have unique names.
   * Accepts the argument `includeDeprecated` which defaults to {false}. If
     {true}, deprecated enum values are also returned.
 * All other fields must return {null}.
@@ -385,7 +387,7 @@ the representation of Lists of Lists, or Lists of Non-Nulls.
 Fields\:
 
 * `kind` must return `__TypeKind.LIST`.
-* `ofType` may be any type.
+* `ofType` must return a type of any kind.
 * All other fields must return {null}.
 
 
@@ -404,7 +406,7 @@ modified Non-Null type to avoid a redundant Non-Null of Non-Null.
 Fields\:
 
 * `kind` must return `__TypeKind.NON_NULL`.
-* `ofType` may be any type except Non-Null.
+* `ofType` must return a type of any kind except Non-Null.
 * All other fields must return {null}.