Add stripIgnoredTokens feature to remove insignificant whitespace

src/__fixtures__/index.js

@@ -21,3 +21,14 @@ export const bigSchemaIntrospectionResult = JSON.parse(
 
 export const kitchenSinkSDL = readLocalFile('schema-kitchen-sink.graphql');
 export const kitchenSinkQuery = readLocalFile('kitchen-sink.graphql');
+
+function removeCommentsFromFixture(fixture) {
+  return fixture.replace(/#.*/g, '');
+}
+
+export const strippedKitchenSinkSDL = removeCommentsFromFixture(
+  readLocalFile('stripped-schema-kitchen-sink.graphql'),
+).trim();
+export const strippedKitchenSinkQuery = removeCommentsFromFixture(
+  readLocalFile('stripped-kitchen-sink.graphql'),
+).trim();

src/__fixtures__/stripped-kitchen-sink.graphql

@@ -0,0 +1,8 @@
+# Copyright (c) 2015-present, Facebook, Inc.
+#
+# This source code is licensed under the MIT license found in the
+# LICENSE file in the root directory of this source tree.
+
+query queryName($foo:ComplexType$site:Site=MOBILE)@onQuery{whoever123is:node(id:[123 456]){id...on User@onInlineFragment{field2{id alias:field1(first:10 after:$foo)@include(if:$foo){id...frag@onFragmentSpread}}}...@skip(unless:$foo){id}...{id}}}mutation likeStory@onMutation{like(story:123)@onField{story{id@onField}}}subscription StoryLikeSubscription($input:StoryLikeSubscribeInput)@onSubscription{storyLikeSubscribe(input:$input){story{likers{count}likeSentence{text}}}}fragment frag on Friend@onFragmentDefinition{foo(size:$size bar:$b obj:{key:"value" block:"""
+    block string uses \"""
+  """})}{unnamed(truthy:true falsey:false nullish:null)query}{__typename}

src/__fixtures__/stripped-schema-kitchen-sink.graphql

@@ -0,0 +1,21 @@
+# Copyright (c) 2015-present, Facebook, Inc.
+#
+# This source code is licensed under the MIT license found in the
+# LICENSE file in the root directory of this source tree.
+
+schema{query:QueryType mutation:MutationType}"""
+This is a description
+of the `Foo` type.
+""" type Foo implements Bar&Baz{"Description of the `one` field." one:Type """
+  This is a description of the `two` field.
+  """ two("""
+    This is a description of the `argument` argument.
+    """ argument:InputType!):Type """
+  This is a description of the `three` field.
+  """ three(argument:InputType other:String):Int four(argument:String="string"):String five(argument:[String]=["string" "string"]):String six(argument:InputType={key:"value"}):Type seven(argument:Int=null):Type}type AnnotatedObject@onObject(arg:"value"){annotatedField(arg:Type="default"@onArgumentDefinition):Type@onField}type UndefinedType extend type Foo{seven(argument:[String]):Type}extend type Foo@onType interface Bar{one:Type four(argument:String="string"):String}interface AnnotatedInterface@onInterface{annotatedField(arg:Type@onArgumentDefinition):Type@onField}interface UndefinedInterface extend interface Bar{two(argument:InputType!):Type}extend interface Bar@onInterface union Feed=Story|Article|Advert union AnnotatedUnion@onUnion=A|B union AnnotatedUnionTwo@onUnion=A|B union UndefinedUnion extend union Feed=Photo|Video extend union Feed@onUnion scalar CustomScalar scalar AnnotatedScalar@onScalar extend scalar CustomScalar@onScalar enum Site{"""
+  This is a description of the `DESKTOP` value
+  """ DESKTOP """
+  This is a description of the `MOBILE` value
+  """ MOBILE "This is a description of the `WEB` value" WEB}enum AnnotatedEnum@onEnum{ANNOTATED_VALUE@onEnumValue OTHER_VALUE}enum UndefinedEnum extend enum Site{VR}extend enum Site@onEnum input InputType{key:String!answer:Int=42}input AnnotatedInput@onInputObject{annotatedField:Type@onInputFieldDefinition}input UndefinedInput extend input InputType{other:Float=1.23e4@onInputFieldDefinition}extend input InputType@onInputObject """
+This is a description of the `@skip` directive
+""" directive@skip(if:Boolean!@onArgumentDefinition)on FIELD|FRAGMENT_SPREAD|INLINE_FRAGMENT directive@include(if:Boolean!)on FIELD|FRAGMENT_SPREAD|INLINE_FRAGMENT directive@include2(if:Boolean!)on FIELD|FRAGMENT_SPREAD|INLINE_FRAGMENT extend schema@onSchema extend schema@onSchema{subscription:SubscriptionType}

src/index.js

@@ -385,6 +385,8 @@ export {
   concatAST,
   // Separates an AST into an AST per Operation.
   separateOperations,
+  // Strips insignificant tokens from a GraphQL string.
+  stripIgnoredTokens,
   // Comparators for types
   isEqualType,
   isTypeSubTypeOf,