fix conflicts

HLint.hs

@@ -14,9 +14,6 @@ error "Avoid return" =
     return ==> pure
     where note = "return is obsolete as of GHC 7.10"
 
-error "use pure" = free . Pure ==> pure
-error "use wrap" = free . Free ==> wrap
-
 error "use extract" = termAnnotation . unTerm ==> extract
 error "use unwrap" = termOut . unTerm ==> unwrap
 

semantic-diff.cabal

@@ -55,13 +55,11 @@ library
                      , Language.Go.Syntax
                      , Language.JSON.Grammar
                      , Language.JSON.Syntax
-                     , Language.Ruby
                      , Language.Ruby.Grammar
                      , Language.Ruby.Syntax
                      , Language.TypeScript
                      , Language.TypeScript.Grammar
                      , Language.TypeScript.Syntax
-                     , Language.Python
                      , Language.Python.Grammar
                      , Language.Python.Syntax
                      , Parser
@@ -74,7 +72,9 @@ library
                      , RWS
                      , Semantic
                      , Semantic.Log
+                     , Semantic.Stat
                      , Semantic.Task
+                     , Semantic.Queue
                      , Semantic.Util
                      , SemanticCmdLine
                      , SES
@@ -101,6 +101,8 @@ library
                      , mersenne-random-pure64
                      , MonadRandom
                      , mtl
+                     , network
+                     , network-uri
                      , optparse-applicative
                      , parallel
                      , parsers
@@ -151,6 +153,7 @@ test-suite test
                      , DiffSpec
                      , SemanticSpec
                      , SemanticCmdLineSpec
+                     , Semantic.StatSpec
                      , InterpreterSpec
                      , PatchOutputSpec
                      , SES.Spec
@@ -177,6 +180,7 @@ test-suite test
                      , HUnit
                      , leancheck
                      , mtl
+                     , network
                      , containers
                      , recursion-schemes >= 4.1
                      , semantic-diff

src/Data/Syntax.hs

@@ -1,4 +1,4 @@
-{-# LANGUAGE DeriveAnyClass, TypeOperators #-}
+{-# LANGUAGE DeriveAnyClass, GADTs, TypeOperators #-}
 module Data.Syntax where
 
 import Algorithm hiding (Empty)
@@ -15,6 +15,7 @@ import Data.Functor.Classes.Eq.Generic
 import Data.Functor.Classes.Ord.Generic
 import Data.Functor.Classes.Show.Generic
 import Data.Mergeable
+import Data.Range
 import Data.Record
 import Data.Semigroup
 import Data.Span
@@ -46,7 +47,8 @@ makeTerm1' f = case toList f of
 
 -- | Construct an empty term at the current position.
 emptyTerm :: (HasCallStack, Empty :< fs, Apply Foldable fs) => Assignment.Assignment ast grammar (Term (Union fs) (Record Assignment.Location))
-emptyTerm = makeTerm <$> Assignment.location <*> pure Empty
+emptyTerm = makeTerm . startLocation <$> Assignment.location <*> pure Empty
+  where startLocation ann = Range (start (getField ann)) (start (getField ann)) :. Span (spanStart (getField ann)) (spanStart (getField ann)) :. Nil
 
 -- | Catch assignment errors into an error term.
 handleError :: (HasCallStack, Error :< fs, Enum grammar, Eq1 ast, Ix grammar, Show grammar, Apply Foldable fs) => Assignment.Assignment ast grammar (Term (Union fs) (Record Assignment.Location)) -> Assignment.Assignment ast grammar (Term (Union fs) (Record Assignment.Location))

src/Data/Syntax/Algebra.hs

@@ -7,6 +7,7 @@ module Data.Syntax.Algebra
 , identifierAlgebra
 , syntaxIdentifierAlgebra
 , cyclomaticComplexityAlgebra
+, ConstructorName(..)
 , ConstructorLabel(..)
 , constructorNameAndConstantFields
 , constructorLabel

src/Language/Python.hs

@@ -1 +0,0 @@
-module Language.Python where

src/Language/Python/Syntax.hs

@@ -39,8 +39,6 @@ type Syntax =
    , Declaration.Decorator
    , Declaration.Function
    , Declaration.Import
-   -- NB: ToC rendering requires Methods in the union.
-   , Declaration.Method
    , Declaration.Variable
    , Expression.Arithmetic
    , Expression.Boolean

src/Language/Ruby.hs

@@ -1,177 +0,0 @@
-{-# LANGUAGE DataKinds #-}
-module Language.Ruby where
-
-import Data.Foldable (toList)
-import Data.List (partition)
-import Data.Record
-import Data.Semigroup
-import Data.Source
-import Data.Term
-import Data.Text (Text)
-import Info
-import Language
-import qualified Syntax as S
-
-termAssignment
-  :: Source -- ^ The source of the term.
-  -> Category -- ^ The category for the term.
-  -> [ Term S.Syntax (Record DefaultFields) ] -- ^ The child nodes of the term.
-  -> Maybe (S.Syntax (Term S.Syntax (Record DefaultFields))) -- ^ The resulting term, in Maybe.
-termAssignment _ category children
-  = case (category, children) of
-    (ArgumentPair, [ k, v ] ) -> Just $ S.Pair k v
-    (KeywordParameter, [ k, v ] ) -> Just $ S.Pair k v
-    -- NB: ("keyword_parameter", k) is a required keyword parameter, e.g.:
-    --    def foo(name:); end
-    -- Let it fall through to generate an Indexed syntax.
-    (OptionalParameter, [ k, v ] ) -> Just $ S.Pair k v
-    (AnonymousFunction, first : rest)
-      | null rest -> Just $ S.AnonymousFunction [] [first]
-      | otherwise -> Just $ S.AnonymousFunction (toList (unwrap first)) rest
-    (ArrayLiteral, _ ) -> Just $ S.Array Nothing children
-    (Assignment, [ identifier, value ]) -> Just $ S.Assignment identifier value
-    (Begin, _ ) -> Just $ case partition (\x -> Info.category (extract x) == Rescue) children of
-      (rescues, rest) -> case partition (\x -> Info.category (extract x) == Ensure || Info.category (extract x) == Else) rest of
-        (ensureElse, body) -> case ensureElse of
-          [ elseBlock, ensure ]
-            | Else <- Info.category (extract elseBlock)
-            , Ensure <- Info.category (extract ensure) -> S.Try body rescues (Just elseBlock) (Just ensure)
-          [ ensure, elseBlock ]
-            | Ensure <- Info.category (extract ensure)
-            , Else <- Info.category (extract elseBlock) -> S.Try body rescues (Just elseBlock) (Just ensure)
-          [ elseBlock ] | Else <- Info.category (extract elseBlock) -> S.Try body rescues (Just elseBlock) Nothing
-          [ ensure ] | Ensure <- Info.category (extract ensure) -> S.Try body rescues Nothing (Just ensure)
-          _ -> S.Try body rescues Nothing Nothing
-    (Class, constant : superclass : body)
-      | Superclass <- Info.category (extract superclass)
-      -> Just $ S.Class constant [superclass] body
-    (Class, constant : rest) -> Just $ S.Class constant [] rest
-    (SingletonClass, identifier : rest) -> Just $ S.Class identifier [] rest
-    (Case, _) -> Just $ uncurry S.Switch (break ((== When) . Info.category . extract) children)
-    (When, expr : body) -> Just $ S.Case expr body
-    (Ternary, condition : cases) -> Just $ S.Ternary condition cases
-    (MethodCall, fn : args)
-      | MemberAccess <- Info.category (extract fn)
-      , [target, method] <- toList (unwrap fn)
-      -> Just $ S.MethodCall target method [] (toList . unwrap =<< args)
-      | otherwise
-      -> Just $ S.FunctionCall fn [] (toList . unwrap =<< args)
-    (Object, _ ) -> Just . S.Object Nothing $ foldMap toTuple children
-    (Modifier If, [ lhs, condition ]) -> Just $ S.If condition [lhs]
-    (Modifier Unless, [lhs, rhs]) -> Just $ S.If (termIn (setCategory (extract rhs) Negate) (S.Negate rhs)) [lhs]
-    (Unless, expr : rest) -> Just $ S.If (termIn (setCategory (extract expr) Negate) (S.Negate expr)) rest
-    (Modifier Until, [ lhs, rhs ]) -> Just $ S.While (termIn (setCategory (extract rhs) Negate) (S.Negate rhs)) [lhs]
-    (Until, expr : rest) -> Just $ S.While (termIn (setCategory (extract expr) Negate) (S.Negate expr)) rest
-    (Elsif, condition : body ) -> Just $ S.If condition body
-    (SubscriptAccess, [ base, element ]) -> Just $ S.SubscriptAccess base element
-    (For, lhs : expr : rest ) -> Just $ S.For [lhs, expr] rest
-    (OperatorAssignment, [ identifier, value ]) -> Just $ S.OperatorAssignment identifier value
-    (MemberAccess, [ base, property ]) -> Just $ S.MemberAccess base property
-    (SingletonMethod, expr : methodName : rest)
-      | params : body <- rest
-      , Params <- Info.category (extract params)
-      -> Just $ S.Method [] methodName (Just expr) [params] body
-      | Identifier <- Info.category (extract methodName)
-      -> Just $ S.Method [] methodName (Just expr) [] rest
-    (Method, identifier : rest)
-      | params : body <- rest
-      , Params <- Info.category (extract params)
-      -> Just $ S.Method [] identifier Nothing [params] body
-      | otherwise
-      -> Just $ S.Method [] identifier Nothing [] rest
-    (Module, constant : body ) -> Just $ S.Module constant body
-    (Modifier Rescue, [lhs, rhs] ) -> Just $ S.Rescue [lhs] [rhs]
-    (Rescue, exceptions : exceptionVar : rest)
-      | RescueArgs <- Info.category (extract exceptions)
-      , RescuedException <- Info.category (extract exceptionVar)
-      -> Just $ S.Rescue (toList (unwrap exceptions) <> [exceptionVar]) rest
-    (Rescue, exceptionVar : rest)
-      | RescuedException <- Info.category (extract exceptionVar)
-      -> Just $ S.Rescue [exceptionVar] rest
-    (Rescue, exceptions : body)
-      | RescueArgs <- Info.category (extract exceptions)
-      -> Just $ S.Rescue (toList (unwrap exceptions)) body
-    (Rescue, body) -> Just $ S.Rescue [] body
-    (Modifier While, [ lhs, condition ]) -> Just $ S.While condition [lhs]
-    _ | category `elem` [ BeginBlock, EndBlock ] -> Just $ S.BlockStatement children
-    _  -> Nothing
-
-categoryForRubyName :: Text -> Category
-categoryForRubyName name = case name of
-  "argument_list_with_parens" -> Args
-  "argument_list" -> Args
-  "argument_pair" -> ArgumentPair
-  "array" -> ArrayLiteral
-  "assignment" -> Assignment
-  "begin_block" -> BeginBlock
-  "begin" -> Begin
-  "binary" -> Binary
-  "block" -> ExpressionStatements
-  "block_parameter" -> BlockParameter
-  "block_parameters" -> Params
-  "boolean" -> Boolean
-  "call" -> MemberAccess
-  "case" -> Case
-  "class"  -> Class
-  "comment" -> Comment
-  "conditional" -> Ternary
-  "constant" -> Constant
-  "element_reference" -> SubscriptAccess
-  "else" -> Else
-  "elsif" -> Elsif
-  "empty_statement" -> Empty
-  "end_block" -> EndBlock
-  "ensure" -> Ensure
-  "exception_variable" -> RescuedException
-  "exceptions" -> RescueArgs
-  "false" -> Boolean
-  "float" -> NumberLiteral
-  "for" -> For
-  "hash_splat_parameter" -> HashSplatParameter
-  "hash" -> Object
-  "identifier" -> Identifier
-  "if_modifier" -> Modifier If
-  "if" -> If
-  "instance_variable" -> Identifier
-  "integer" -> IntegerLiteral
-  "interpolation" -> Interpolation
-  "keyword_parameter" -> KeywordParameter
-  "lambda_parameters" -> Params
-  "lambda" -> AnonymousFunction
-  "left_assignment_list" -> Args
-  "method_call" -> MethodCall
-  "method_parameters" -> Params
-  "method" -> Method
-  "module"  -> Module
-  "nil" -> Identifier
-  "operator_assignment" -> OperatorAssignment
-  "optional_parameter" -> OptionalParameter
-  "pair" -> Pair
-  "pattern" -> Args
-  "program" -> Program
-  "range" -> RangeExpression
-  "regex" -> Regex
-  "rescue_modifier" -> Modifier Rescue
-  "rescue" -> Rescue
-  "rest_assignment" -> SplatParameter
-  "return" -> Return
-  "scope_resolution" -> ScopeOperator
-  "self" -> Identifier
-  "singleton_class"  -> SingletonClass
-  "singleton_method" -> SingletonMethod
-  "splat_parameter" -> SplatParameter
-  "string" -> StringLiteral
-  "subshell" -> Subshell
-  "superclass" -> Superclass
-  "symbol" -> SymbolLiteral
-  "true" -> Boolean
-  "unary" -> Unary
-  "unless_modifier" -> Modifier Unless
-  "unless" -> Unless
-  "until_modifier" -> Modifier Until
-  "until" -> Until
-  "when" -> When
-  "while_modifier" -> Modifier While
-  "while" -> While
-  "yield" -> Yield
-  s -> Other s

src/Language/Ruby/Syntax.hs

@@ -235,11 +235,10 @@ singletonMethod = makeTerm <$> symbol SingletonMethod <*> children (Declaration.
   where params = symbol MethodParameters *> children (many parameter) <|> pure []
 
 lambda :: Assignment
-lambda = symbol Lambda >>= \ loc -> children $ do
-  name <- makeTerm loc <$> (Syntax.Empty <$ source)
-  params <- (symbol BlockParameters <|> symbol LambdaParameters) *> children (many parameter) <|> pure []
-  body <- expressions
-  pure $ makeTerm loc (Declaration.Function [] name params body)
+lambda = makeTerm <$> symbol Lambda <*> children (
+  Declaration.Function [] <$> emptyTerm
+                          <*> ((symbol BlockParameters <|> symbol LambdaParameters) *> children (many parameter) <|> pure [])
+                          <*> expressions)
 
 block :: Assignment
 block =  makeTerm <$> symbol DoBlock <*> children (Declaration.Function <$> pure [] <*> emptyTerm <*> params <*> expressions)

src/Language/TypeScript/Syntax.hs

@@ -171,6 +171,7 @@ type Syntax = '[
   , Language.TypeScript.Syntax.This
   , Language.TypeScript.Syntax.Update
   , Language.TypeScript.Syntax.ComputedPropertyName
+  , Language.TypeScript.Syntax.Decorator
   , []
   ]
 
@@ -269,6 +270,13 @@ instance Eq1 Annotation where liftEq = genericLiftEq
 instance Ord1 Annotation where liftCompare = genericLiftCompare
 instance Show1 Annotation where liftShowsPrec = genericLiftShowsPrec
 
+newtype Decorator a = Decorator { _decoratorTerm :: a }
+  deriving (Diffable, Eq, Foldable, Functor, GAlign, Generic1, Mergeable, Ord, Show, Traversable)
+
+instance Eq1 Decorator where liftEq = genericLiftEq
+instance Ord1 Decorator where liftCompare = genericLiftCompare
+instance Show1 Decorator where liftShowsPrec = genericLiftShowsPrec
+
 newtype ComputedPropertyName a = ComputedPropertyName a
   deriving (Diffable, Eq, Foldable, Functor, GAlign, Generic1, Mergeable, Ord, Show, Traversable)
 
@@ -659,7 +667,6 @@ expression = term (handleError everything)
       importAlias',
       internalModule,
       super,
-      abstractClass,
       object,
       array,
       jsxElement,
@@ -728,7 +735,7 @@ ternaryExpression :: Assignment
 ternaryExpression = makeTerm <$> symbol Grammar.TernaryExpression <*> children (Statement.If <$> expression <*> expression <*> expression)
 
 memberExpression :: Assignment
-memberExpression = makeTerm <$> symbol Grammar.MemberExpression <*> children (Expression.MemberAccess <$> postContextualize comment expression <*> propertyIdentifier)
+memberExpression = makeTerm <$> (symbol Grammar.MemberExpression <|> symbol Grammar.MemberExpression') <*> children (Expression.MemberAccess <$> postContextualize comment expression <*> propertyIdentifier)
 
 newExpression :: Assignment
 newExpression = makeTerm <$> symbol Grammar.NewExpression <*> children (Expression.New <$> expression)
@@ -800,8 +807,8 @@ identifier :: Assignment
 identifier = (makeTerm <$> symbol Identifier' <*> (Syntax.Identifier <$> source)) <|> (makeTerm <$> symbol Identifier <*> (Syntax.Identifier <$> source))
 
 class' :: Assignment
-class' = makeClass <$> symbol Class <*> children ((,,,) <$> identifier <*> ((symbol TypeParameters *> children (many (term typeParameter'))) <|> pure []) <*> (classHeritage' <|> pure []) <*> classBodyStatements)
-  where makeClass loc (expression, typeParams, classHeritage, statements) = makeTerm loc (Declaration.Class typeParams expression classHeritage statements)
+class' = makeClass <$> symbol Class <*> children ((,,,,) <$> many (term decorator) <*> identifier <*> ((symbol TypeParameters *> children (many (term typeParameter'))) <|> pure []) <*> (classHeritage' <|> pure []) <*> classBodyStatements)
+  where makeClass loc (decorators, expression, typeParams, classHeritage, statements) = makeTerm loc (Declaration.Class (decorators ++ typeParams) expression classHeritage statements)
 
 object :: Assignment
 object = (makeTerm <$> (symbol Object <|> symbol ObjectPattern) <*> children (Literal.Hash <$> many (term ((pair <|> spreadElement <|> methodDefinition <|> assignmentPattern <|> shorthandPropertyIdentifier)))))
@@ -878,7 +885,10 @@ methodSignature = makeMethodSignature <$> symbol Grammar.MethodSignature <*> chi
   where makeMethodSignature loc (modifier, readonly, propertyName, (typeParams, params, annotation)) = makeTerm loc (Language.TypeScript.Syntax.MethodSignature [modifier, readonly, typeParams, annotation] propertyName params)
 
 formalParameters :: HasCallStack => Assignment.Assignment [] Grammar [Term]
-formalParameters = symbol FormalParameters *> children (many (term parameter))
+formalParameters = symbol FormalParameters *> children (concat <$> many ((\as b -> as ++ [b]) <$> many (term decorator) <*> term parameter))
+
+decorator :: Assignment
+decorator = makeTerm <$> symbol Grammar.Decorator <*> children (Language.TypeScript.Syntax.Decorator <$> (identifier <|> memberExpression <|> callExpression))
 
 typeParameters :: Assignment
 typeParameters = makeTerm <$> symbol TypeParameters <*> children (Type.TypeParameters <$> many (term typeParameter'))
@@ -973,7 +983,7 @@ statementBlock :: Assignment
 statementBlock = makeTerm <$> symbol StatementBlock <*> children (many statement)
 
 classBodyStatements :: HasCallStack => Assignment.Assignment [] Grammar [Term]
-classBodyStatements = symbol ClassBody *> children (many (term (methodDefinition <|> publicFieldDefinition <|> methodSignature <|> indexSignature)))
+classBodyStatements = symbol ClassBody *> children (concat <$> many ((\as b -> as ++ [b]) <$> many (term decorator) <*> term (methodDefinition <|> publicFieldDefinition <|> methodSignature <|> indexSignature)))
 
 publicFieldDefinition :: Assignment
 publicFieldDefinition = makeField <$> symbol Grammar.PublicFieldDefinition <*> children ((,,,,) <$> (accessibilityModifier' <|> emptyTerm) <*> (readonly' <|> emptyTerm) <*> propertyName <*> (typeAnnotation' <|> emptyTerm) <*> (expression <|> emptyTerm))
@@ -1063,6 +1073,7 @@ declaration = everything
       function,
       internalModule,
       ambientFunction,
+      abstractClass,
       class',
       module',
       variableDeclaration,
@@ -1093,7 +1104,7 @@ ambientDeclaration :: Assignment
 ambientDeclaration = makeTerm <$> symbol Grammar.AmbientDeclaration <*> children (Language.TypeScript.Syntax.AmbientDeclaration <$> choice [declaration, statementBlock])
 
 exportStatement :: Assignment
-exportStatement = makeTerm <$> symbol Grammar.ExportStatement <*> children (Language.TypeScript.Syntax.Export <$> (((\a b -> [a, b]) <$> exportClause <*> fromClause) <|> (pure <$> (fromClause <|> exportClause <|> declaration <|> expression <|> identifier <|> importAlias'))))
+exportStatement = makeTerm <$> symbol Grammar.ExportStatement <*> children (Language.TypeScript.Syntax.Export <$> (((\a b -> [a, b]) <$> exportClause <*> fromClause) <|> ((++) <$> many (term decorator) <*> (pure <$> (fromClause <|> exportClause <|> declaration <|> expression <|> identifier <|> importAlias')))))
 
 fromClause :: Assignment
 fromClause = string
@@ -1121,16 +1132,16 @@ shorthandPropertyIdentifier :: Assignment
 shorthandPropertyIdentifier = makeTerm <$> symbol Grammar.ShorthandPropertyIdentifier <*> (Language.TypeScript.Syntax.ShorthandPropertyIdentifier <$> source)
 
 requiredParameter :: Assignment
-requiredParameter = makeRequiredParameter <$> symbol Grammar.RequiredParameter <*> children ((,,,) <$> (accessibilityModifier' <|> emptyTerm) <*> (identifier <|> destructuringPattern) <*> (typeAnnotation' <|> emptyTerm) <*> (expression <|> emptyTerm))
-  where makeRequiredParameter loc (modifier, identifier, annotation, initializer) = makeTerm loc (Language.TypeScript.Syntax.RequiredParameter [modifier, annotation] (makeTerm loc (Statement.Assignment [] identifier initializer)))
+requiredParameter = makeRequiredParameter <$> symbol Grammar.RequiredParameter <*> children ((,,,,) <$> (accessibilityModifier' <|> emptyTerm) <*> (readonly' <|> emptyTerm) <*> (identifier <|> destructuringPattern) <*> (typeAnnotation' <|> emptyTerm) <*> (expression <|> emptyTerm))
+  where makeRequiredParameter loc (modifier, readonly, identifier, annotation, initializer) = makeTerm loc (Language.TypeScript.Syntax.RequiredParameter [modifier, readonly, annotation] (makeTerm loc (Statement.Assignment [] identifier initializer)))
 
 restParameter :: Assignment
 restParameter = makeRestParameter <$> symbol Grammar.RestParameter <*> children ((,) <$> identifier <*> (typeAnnotation' <|> emptyTerm))
   where makeRestParameter loc (identifier, annotation) = makeTerm loc (Language.TypeScript.Syntax.RestParameter [annotation] identifier)
 
 optionalParameter :: Assignment
-optionalParameter = makeOptionalParam <$> symbol Grammar.OptionalParameter <*> children ((,,,) <$> (accessibilityModifier' <|> emptyTerm) <*> (identifier <|> destructuringPattern) <*> (typeAnnotation' <|> emptyTerm) <*> (expression <|> emptyTerm))
-  where makeOptionalParam loc (modifier, subject, annotation, initializer) = makeTerm loc (Language.TypeScript.Syntax.OptionalParameter [modifier, annotation] (makeTerm loc (Statement.Assignment [] subject initializer)))
+optionalParameter = makeOptionalParam <$> symbol Grammar.OptionalParameter <*> children ((,,,,) <$> (accessibilityModifier' <|> emptyTerm) <*> (readonly' <|> emptyTerm) <*> (identifier <|> destructuringPattern) <*> (typeAnnotation' <|> emptyTerm) <*> (expression <|> emptyTerm))
+  where makeOptionalParam loc (modifier, readonly, subject, annotation, initializer) = makeTerm loc (Language.TypeScript.Syntax.OptionalParameter [modifier, readonly, annotation] (makeTerm loc (Statement.Assignment [] subject initializer)))
 
 internalModule :: Assignment
 internalModule = makeTerm <$> symbol Grammar.InternalModule <*> children (Language.TypeScript.Syntax.InternalModule <$> (string <|> identifier <|> nestedIdentifier) <*> statements)
@@ -1181,7 +1192,7 @@ pair :: Assignment
 pair = makeTerm <$> symbol Pair <*> children (Literal.KeyValue <$> propertyName <*> expression)
 
 callExpression :: Assignment
-callExpression = makeCall <$> symbol CallExpression <*> children ((,,,) <$> (expression <|> super <|> function) <*> (typeArguments <|> pure []) <*> (arguments <|> (pure <$> templateString)) <*> emptyTerm)
+callExpression = makeCall <$> (symbol CallExpression <|> symbol CallExpression') <*> children ((,,,) <$> (expression <|> super <|> function) <*> (typeArguments <|> pure []) <*> (arguments <|> (pure <$> templateString)) <*> emptyTerm)
   where makeCall loc (subject, typeArgs, args, body) = makeTerm loc (Expression.Call typeArgs subject args body)
         arguments = symbol Arguments *> children (many (term (expression <|> spreadElement)))
         typeArguments = symbol Grammar.TypeArguments *> children (some (term ty))

src/Parser.hs

@@ -1,8 +1,10 @@
-{-# LANGUAGE DataKinds, GADTs, RankNTypes, ScopedTypeVariables, TypeOperators #-}
+{-# LANGUAGE ConstraintKinds, DataKinds, GADTs, RankNTypes, ScopedTypeVariables, TypeFamilies, TypeOperators #-}
 module Parser
 ( Parser(..)
+, SomeParser(..)
+, someParser
 -- Syntax parsers
-, parserForLanguage
+, syntaxParserForLanguage
 -- À la carte parsers
 , jsonParser
 , markdownParser
@@ -13,6 +15,7 @@ module Parser
 
 import qualified CMarkGFM
 import Data.Functor.Classes (Eq1)
+import Data.Kind
 import Data.Ix
 import Data.Record
 import qualified Data.Syntax as Syntax
@@ -49,9 +52,43 @@ data Parser term where
   -- | A parser for 'Markdown' using cmark.
   MarkdownParser :: Parser (Term (TermF [] CMarkGFM.NodeType) (Node Markdown.Grammar))
 
+-- | Apply all of a list of typeclasses to all of a list of functors using 'Apply'. Used by 'someParser' to constrain all of the language-specific syntax types to the typeclasses in question.
+type family ApplyAll (typeclasses :: [(* -> *) -> Constraint]) (functors :: [* -> *]) :: Constraint where
+  ApplyAll (typeclass ': typeclasses) functors = (Apply typeclass functors, ApplyAll typeclasses functors)
+  ApplyAll '[] functors = ()
+
+-- | A parser for some specific language, producing 'Term's whose syntax satisfies a list of typeclass constraints.
+--
+--   This enables us to abstract over the details of the specific syntax types in cases where we can describe all the requirements on the syntax with a list of typeclasses.
+data SomeParser typeclasses where
+  SomeParser :: ApplyAll typeclasses fs => { unSomeParser :: Parser (Term (Union fs) (Record Location)) } -> SomeParser typeclasses
+
+-- | Construct a 'SomeParser' given a proxy for a list of typeclasses and the 'Language' to be parsed, all of which must be satisfied by all of the types in the syntaxes of our supported languages.
+--
+--   This can be used to perform operations uniformly over terms produced by blobs with different 'Language's, and which therefore have different types in general. For example, given some 'Blob', we can parse and 'show' the parsed & assigned 'Term' like so:
+--
+--   > case someParser (Proxy :: Proxy '[Show1]) (blobLanguage language) of { Just (SomeParser parser) -> runTask (parse parser blob) >>= putStrLn . show ; _ -> return () }
+someParser :: ( ApplyAll typeclasses JSON.Syntax
+              , ApplyAll typeclasses Markdown.Syntax
+              , ApplyAll typeclasses Python.Syntax
+              , ApplyAll typeclasses Ruby.Syntax
+              , ApplyAll typeclasses TypeScript.Syntax
+              )
+           => proxy typeclasses              -- ^ A proxy for the list of typeclasses required, e.g. @(Proxy :: Proxy '[Show1])@.
+           -> Language                       -- ^ The 'Language' to select.
+           -> Maybe (SomeParser typeclasses) -- ^ 'Maybe' a 'SomeParser' abstracting the syntax type to be produced.
+someParser _ Go         = Nothing
+someParser _ JavaScript = Just (SomeParser typescriptParser)
+someParser _ JSON       = Just (SomeParser jsonParser)
+someParser _ JSX        = Just (SomeParser typescriptParser)
+someParser _ Markdown   = Just (SomeParser markdownParser)
+someParser _ Python     = Just (SomeParser pythonParser)
+someParser _ Ruby       = Just (SomeParser rubyParser)
+someParser _ TypeScript = Just (SomeParser typescriptParser)
+
 -- | Return a 'Language'-specific 'Parser', if one exists, falling back to the 'LineByLineParser'.
-parserForLanguage :: Language -> Maybe (Parser (Term Syntax (Record DefaultFields)))
-parserForLanguage language = case language of
+syntaxParserForLanguage :: Language -> Maybe (Parser (Term Syntax (Record DefaultFields)))
+syntaxParserForLanguage language = case language of
   Go         -> Just (TreeSitterParser tree_sitter_go)
   JavaScript -> Just (TreeSitterParser tree_sitter_typescript)
   JSON       -> Just (TreeSitterParser tree_sitter_json)

src/Renderer.hs

@@ -10,8 +10,8 @@ module Renderer
 , renderJSONTerm
 , renderToCDiff
 , renderToCTerm
+, HasDeclaration
 , declarationAlgebra
-, markupSectionAlgebra
 , syntaxDeclarationAlgebra
 , Summaries(..)
 , File(..)

src/Renderer/TOC.hs

@@ -1,4 +1,4 @@
-{-# LANGUAGE MultiParamTypeClasses, RankNTypes, TypeOperators, ScopedTypeVariables #-}
+{-# LANGUAGE DataKinds, MultiParamTypeClasses, RankNTypes, ScopedTypeVariables, TypeFamilies, TypeOperators, UndecidableInstances #-}
 module Renderer.TOC
 ( renderToCDiff
 , renderToCTerm
@@ -8,8 +8,8 @@ module Renderer.TOC
 , isValidSummary
 , Declaration(..)
 , declaration
+, HasDeclaration
 , declarationAlgebra
-, markupSectionAlgebra
 , syntaxDeclarationAlgebra
 , Entry(..)
 , tableOfContentsBy
@@ -34,6 +34,8 @@ import Data.List (sortOn)
 import Data.Maybe (fromMaybe, mapMaybe)
 import Data.Output
 import Data.Patch
+import Data.Proxy
+import Data.Range
 import Data.Record
 import Data.Semigroup ((<>), sconcat)
 import Data.Source as Source
@@ -92,6 +94,121 @@ data Declaration
   | ErrorDeclaration    { declarationIdentifier :: T.Text, declarationLanguage :: Maybe Language }
   deriving (Eq, Generic, Show)
 
+
+-- | An r-algebra producing 'Just' a 'Declaration' for syntax nodes corresponding to high-level declarations, or 'Nothing' otherwise.
+--
+--   Customizing this for a given syntax type involves two steps:
+--
+--   1. Defining a 'CustomHasDeclaration' instance for the type.
+--   2. Adding the type to the 'DeclarationStrategy' type family.
+--
+--   If you’re getting errors about missing a 'CustomHasDeclaration' instance for your syntax type, you probably forgot step 1.
+--
+--   If you’re getting 'Nothing' for your syntax node at runtime, you probably forgot step 2.
+declarationAlgebra :: (HasField fields Range, HasField fields Span, Foldable syntax, HasDeclaration syntax) => Blob -> RAlgebra (TermF syntax (Record fields)) (Term syntax (Record fields)) (Maybe Declaration)
+declarationAlgebra blob (In ann syntax) = toDeclaration blob ann syntax
+
+
+-- | Types for which we can produce a 'Declaration' in 'Maybe'. There is exactly one instance of this typeclass; adding customized 'Declaration's for a new type is done by defining an instance of 'CustomHasDeclaration' instead.
+--
+--   This typeclass employs the Advanced Overlap techniques designed by Oleg Kiselyov & Simon Peyton Jones: https://wiki.haskell.org/GHC/AdvancedOverlap.
+class HasDeclaration syntax where
+  -- | Compute a 'Declaration' for a syntax type using its 'CustomHasDeclaration' instance, if any, or else falling back to the default definition (which simply returns 'Nothing').
+  toDeclaration :: (Foldable whole, HasField fields Range, HasField fields Span) => Blob -> Record fields -> RAlgebra syntax (Term whole (Record fields)) (Maybe Declaration)
+
+-- | Define 'toDeclaration' using the 'CustomHasDeclaration' instance for a type if there is one or else use the default definition.
+--
+--   This instance determines whether or not there is an instance for @syntax@ by looking it up in the 'DeclarationStrategy' type family. Thus producing a 'Declaration' for a node requires both defining a 'CustomHasDeclaration' instance _and_ adding a definition for the type to the 'DeclarationStrategy' type family to return 'Custom'.
+--
+--   Note that since 'DeclarationStrategy' has a fallback case for its final entry, this instance will hold for all types of kind @* -> *@. Thus, this must be the only instance of 'HasDeclaration', as any other instance would be indistinguishable.
+instance (DeclarationStrategy syntax ~ strategy, HasDeclarationWithStrategy strategy syntax) => HasDeclaration syntax where
+  toDeclaration = toDeclarationWithStrategy (Proxy :: Proxy strategy)
+
+
+-- | Types for which we can produce a customized 'Declaration'. This returns in 'Maybe' so that some values can be opted out (e.g. anonymous functions).
+class CustomHasDeclaration syntax where
+  -- | Produce a customized 'Declaration' for a given syntax node.
+  customToDeclaration :: (Foldable whole, HasField fields Range, HasField fields Span) => Blob -> Record fields -> RAlgebra syntax (Term whole (Record fields)) (Maybe Declaration)
+
+
+-- | Produce a 'SectionDeclaration' from the first line of the heading of a 'Markup.Section' node.
+instance CustomHasDeclaration Markup.Section where
+  customToDeclaration Blob{..} _ (Markup.Section level (Term (In headingAnn headingF), _) _)
+    = Just $ SectionDeclaration (maybe (getSource (byteRange headingAnn)) (getSource . sconcat) (nonEmpty (byteRange . termAnnotation . unTerm <$> toList headingF))) level
+    where getSource = firstLine . toText . flip Source.slice blobSource
+          firstLine = T.takeWhile (/= '\n')
+
+-- | Produce an 'ErrorDeclaration' for 'Syntax.Error' nodes.
+instance CustomHasDeclaration Syntax.Error where
+  customToDeclaration Blob{..} ann err@Syntax.Error{}
+    = Just $ ErrorDeclaration (T.pack (formatTOCError (Syntax.unError (sourceSpan ann) err))) blobLanguage
+
+-- | Produce a 'FunctionDeclaration' for 'Declaration.Function' nodes so long as their identifier is non-empty (defined as having a non-empty 'byteRange').
+instance CustomHasDeclaration Declaration.Function where
+  customToDeclaration Blob{..} _ (Declaration.Function _ (Term (In identifierAnn _), _) _ _)
+    -- Do not summarize anonymous functions
+    | isEmpty identifierAnn = Nothing
+    -- Named functions
+    | otherwise             = Just $ FunctionDeclaration (getSource identifierAnn)
+    where getSource = toText . flip Source.slice blobSource . byteRange
+          isEmpty = (== 0) . rangeLength . byteRange
+
+-- | Produce a 'MethodDeclaration' for 'Declaration.Method' nodes. If the method’s receiver is non-empty (defined as having a non-empty 'byteRange'), the 'declarationIdentifier' will be formatted as 'receiver.method_name'; otherwise it will be simply 'method_name'.
+instance CustomHasDeclaration Declaration.Method where
+  customToDeclaration Blob{..} _ (Declaration.Method _ (Term (In receiverAnn _), _) (Term (In identifierAnn _), _) _ _)
+    -- Methods without a receiver
+    | isEmpty receiverAnn = Just $ MethodDeclaration (getSource identifierAnn)
+    -- Methods with a receiver (class methods) are formatted like `receiver.method_name`
+    | otherwise           = Just $ MethodDeclaration (getSource receiverAnn <> "." <> getSource identifierAnn)
+    where getSource = toText . flip Source.slice blobSource . byteRange
+          isEmpty = (== 0) . rangeLength . byteRange
+
+-- | Produce a 'ClassDeclaration' for 'Declaration.Class' nodes.
+instance CustomHasDeclaration Declaration.Class where
+  customToDeclaration Blob{..} _ (Declaration.Class _ (Term (In identifierAnn _), _) _ _)
+    -- Classes
+    = Just $ ClassDeclaration (getSource identifierAnn)
+    where getSource = toText . flip Source.slice blobSource . byteRange
+
+-- | Produce a 'Declaration' for 'Union's using the 'HasDeclaration' instance & therefore using a 'CustomHasDeclaration' instance when one exists & the type is listed in 'DeclarationStrategy'.
+instance Apply HasDeclaration fs => CustomHasDeclaration (Union fs) where
+  customToDeclaration blob ann = apply (Proxy :: Proxy HasDeclaration) (toDeclaration blob ann)
+
+
+-- | A strategy for defining a 'HasDeclaration' instance. Intended to be promoted to the kind level using @-XDataKinds@.
+data Strategy = Default | Custom
+
+-- | Produce a 'Declaration' for a syntax node using either the 'Default' or 'Custom' strategy.
+--
+--   You should probably be using 'CustomHasDeclaration' instead of this class; and you should not define new instances of this class.
+class HasDeclarationWithStrategy (strategy :: Strategy) syntax where
+  toDeclarationWithStrategy :: (Foldable whole, HasField fields Range, HasField fields Span) => proxy strategy -> Blob -> Record fields -> RAlgebra syntax (Term whole (Record fields)) (Maybe Declaration)
+
+
+-- | A predicate on syntax types selecting either the 'Custom' or 'Default' strategy.
+--
+--   Only entries for which we want to use the 'Custom' strategy should be listed, with the exception of the final entry which maps all other types onto the 'Default' strategy.
+--
+--   If you’re seeing errors about missing a 'CustomHasDeclaration' instance for a given type, you’ve probably listed it in here but not defined a 'CustomHasDeclaration' instance for it, or else you’ve listed the wrong type in here. Conversely, if your 'customHasDeclaration' method is never being called, you may have forgotten to list the type in here.
+type family DeclarationStrategy syntax where
+  DeclarationStrategy Declaration.Class = 'Custom
+  DeclarationStrategy Declaration.Function = 'Custom
+  DeclarationStrategy Declaration.Method = 'Custom
+  DeclarationStrategy Markup.Section = 'Custom
+  DeclarationStrategy Syntax.Error = 'Custom
+  DeclarationStrategy (Union fs) = 'Custom
+  DeclarationStrategy a = 'Default
+
+
+-- | The 'Default' strategy produces 'Nothing'.
+instance HasDeclarationWithStrategy 'Default syntax where
+  toDeclarationWithStrategy _ _ _ _ = Nothing
+
+-- | The 'Custom' strategy delegates the selection of the strategy to the 'CustomHasDeclaration' instance for the type.
+instance CustomHasDeclaration syntax => HasDeclarationWithStrategy 'Custom syntax where
+  toDeclarationWithStrategy _ = customToDeclaration
+
+
 getDeclaration :: HasField fields (Maybe Declaration) => Record fields -> Maybe Declaration
 getDeclaration = getField
 
@@ -113,49 +230,6 @@ syntaxDeclarationAlgebra Blob{..} (In a r) = case r of
   _ -> Nothing
   where getSource = toText . flip Source.slice blobSource . byteRange . extract
 
--- | Compute 'Declaration's for methods and functions.
-declarationAlgebra :: (Declaration.Function :< fs, Declaration.Class :< fs, Declaration.Method :< fs, Syntax.Empty :< fs, Syntax.Error :< fs, Apply Functor fs, HasField fields Range, HasField fields Span)
-                   => Blob
-                   -> RAlgebra (TermF (Union fs) (Record fields)) (Term (Union fs) (Record fields)) (Maybe Declaration)
-declarationAlgebra Blob{..} (In a r)
-  -- Do not summarize anonymous functions
-  | Just (Declaration.Function _ (identifier, _) _ _) <- prj r
-  , Just Syntax.Empty <- prj (unwrap identifier)
-  = Nothing
-
-  -- Named functions
-  | Just (Declaration.Function _ (identifier, _) _ _) <- prj r
-  = Just $ FunctionDeclaration (getSource (extract identifier))
-
-  -- Classes
-  | Just (Declaration.Class _ (identifier, _) _ _) <- prj r
-  = Just $ ClassDeclaration (getSource (extract identifier))
-
-  -- Methods without a receiver
-  | Just (Declaration.Method _ (receiver, _) (identifier, _) _ _) <- prj r
-  , Just Syntax.Empty <- prj (unwrap receiver)
-  = Just $ MethodDeclaration (getSource (extract identifier))
-
-  -- Methods with a receiver (class methods) are formatted like `receiver.method_name`
-  | Just (Declaration.Method _ (receiver, _) (identifier, _) _ _) <- prj r
-  = Just $ MethodDeclaration (getSource (extract receiver) <> "." <> getSource (extract identifier))
-
-  | Just err@Syntax.Error{} <- prj r
-  = Just $ ErrorDeclaration (T.pack (formatTOCError (Syntax.unError (sourceSpan a) err))) blobLanguage
-  | otherwise = Nothing
-
-  where getSource = toText . flip Source.slice blobSource . byteRange
-
--- | Compute 'Declaration's with the headings of 'Markup.Section's.
-markupSectionAlgebra :: (Markup.Section :< fs, Syntax.Error :< fs, HasField fields Range, HasField fields Span, Apply Functor fs, Apply Foldable fs)
-                     => Blob
-                     -> RAlgebra (TermF (Union fs) (Record fields)) (Term (Union fs) (Record fields)) (Maybe Declaration)
-markupSectionAlgebra Blob{..} (In a r)
-  | Just (Markup.Section level (heading, _) _) <- prj r = Just $ SectionDeclaration (maybe (getSource (extract heading)) (firstLine . toText . flip Source.slice blobSource . sconcat) (nonEmpty (byteRange . extract <$> toList (unwrap heading)))) level
-  | Just err@Syntax.Error{} <- prj r = Just $ ErrorDeclaration (T.pack (formatTOCError (Syntax.unError (sourceSpan a) err))) blobLanguage
-  | otherwise = Nothing
-  where getSource = firstLine . toText . flip Source.slice blobSource . byteRange
-        firstLine = T.takeWhile (/= '\n')
 
 formatTOCError :: Error.Error String -> String
 formatTOCError e = showExpectation False (errorExpected e) (errorActual e) ""

src/Semantic.hs

@@ -7,15 +7,18 @@ module Semantic
 , diffTermPair
 ) where
 
+import Algorithm (Diffable)
 import Control.Exception
 import Control.Monad ((<=<))
 import Control.Monad.Error.Class
-import Data.Bifunctor
+import Data.Align.Generic
 import Data.Blob
 import Data.ByteString (ByteString)
 import Data.Diff
 import Data.Functor.Both as Both
+import Data.Functor.Classes
 import Data.Output
+import Data.Bifoldable
 import Data.Record
 import Data.Syntax.Algebra
 import Data.Term
@@ -26,6 +29,7 @@ import qualified Language
 import Parser
 import Renderer
 import Semantic.Task as Task
+import Semantic.Stat as Stat
 
 -- This is the primary interface to the Semantic library which provides two
 -- major classes of functionality: semantic parsing and diffing of source code
@@ -42,25 +46,25 @@ parseBlobs renderer = fmap toOutput . distributeFoldMap (parseBlob renderer) . f
 -- | A task to parse a 'Blob' and render the resulting 'Term'.
 parseBlob :: TermRenderer output -> Blob -> Task output
 parseBlob renderer blob@Blob{..} = case (renderer, blobLanguage) of
-  (ToCTermRenderer, Just Language.Markdown) -> parse markdownParser blob >>= decorate (markupSectionAlgebra blob) >>= render (renderToCTerm blob)
-  (ToCTermRenderer, Just Language.Python) -> parse pythonParser blob >>= decorate (declarationAlgebra blob) >>= render (renderToCTerm blob)
-  (ToCTermRenderer, Just Language.TypeScript) -> parse typescriptParser blob >>= decorate (declarationAlgebra blob) >>= render (renderToCTerm blob)
-  (ToCTermRenderer, Just Language.Ruby) -> parse rubyParser blob >>= decorate (declarationAlgebra blob) >>= render (renderToCTerm blob)
-  (ToCTermRenderer, _) | Just syntaxParser <- syntaxParser -> parse syntaxParser blob >>= decorate (syntaxDeclarationAlgebra blob) >>= render (renderToCTerm blob)
-  (JSONTermRenderer, Just Language.JSON) -> parse jsonParser blob >>= decorate constructorLabel >>= render (renderJSONTerm blob)
-  (JSONTermRenderer, Just Language.Markdown) -> parse markdownParser blob >>= decorate constructorLabel >>= render (renderJSONTerm blob)
-  (JSONTermRenderer, Just Language.Python) -> parse pythonParser blob >>= decorate constructorLabel >>= render (renderJSONTerm blob)
-  (JSONTermRenderer, Just Language.TypeScript) -> parse typescriptParser blob >>= decorate constructorLabel >>= render (renderJSONTerm blob)
-  (JSONTermRenderer, Just Language.Ruby) -> parse rubyParser blob >>= decorate constructorLabel >>= render (renderJSONTerm blob)
-  (JSONTermRenderer, _) | Just syntaxParser <- syntaxParser -> parse syntaxParser blob >>= decorate syntaxIdentifierAlgebra >>= render (renderJSONTerm blob)
-  (SExpressionTermRenderer, Just Language.JSON) -> parse jsonParser blob >>= decorate constructorLabel >>= render renderSExpressionTerm . fmap keepConstructorLabel
-  (SExpressionTermRenderer, Just Language.Markdown) -> parse markdownParser blob >>= decorate constructorLabel >>= render renderSExpressionTerm . fmap keepConstructorLabel
-  (SExpressionTermRenderer, Just Language.Python) -> parse pythonParser blob >>= decorate constructorLabel >>= render renderSExpressionTerm . fmap keepConstructorLabel
-  (SExpressionTermRenderer, Just Language.TypeScript) -> parse typescriptParser blob >>= decorate constructorLabel >>= render renderSExpressionTerm . fmap keepConstructorLabel
-  (SExpressionTermRenderer, Just Language.Ruby) -> parse rubyParser blob >>= decorate constructorLabel >>= render renderSExpressionTerm . fmap keepConstructorLabel
-  (SExpressionTermRenderer, _) | Just syntaxParser <- syntaxParser -> parse syntaxParser blob >>= render renderSExpressionTerm . fmap keepCategory
+  (ToCTermRenderer, lang)
+    | Just (SomeParser parser) <- lang >>= someParser (Proxy :: Proxy '[HasDeclaration, Foldable, Functor]) ->
+      parse parser blob >>= decorate (declarationAlgebra blob) >>= render (renderToCTerm blob)
+    | Just syntaxParser <- lang >>= syntaxParserForLanguage ->
+      parse syntaxParser blob >>= decorate (syntaxDeclarationAlgebra blob) >>= render (renderToCTerm blob)
+
+  (JSONTermRenderer, lang)
+    | Just (SomeParser parser) <- lang >>= someParser (Proxy :: Proxy '[ConstructorName, Foldable, Functor]) ->
+      parse parser blob >>= decorate constructorLabel >>= render (renderJSONTerm blob)
+    | Just syntaxParser <- lang >>= syntaxParserForLanguage ->
+      parse syntaxParser blob >>= decorate syntaxIdentifierAlgebra >>= render (renderJSONTerm blob)
+
+  (SExpressionTermRenderer, lang)
+    | Just (SomeParser parser) <- lang >>= someParser (Proxy :: Proxy '[ConstructorName, Foldable, Functor]) ->
+      parse parser blob >>= decorate constructorLabel . (Nil <$) >>= render renderSExpressionTerm
+    | Just syntaxParser <- lang >>= syntaxParserForLanguage ->
+      parse syntaxParser blob >>= render renderSExpressionTerm . fmap keepCategory
+
   _ -> throwError (SomeException (NoParserForLanguage blobPath blobLanguage))
-  where syntaxParser = blobLanguage >>= parserForLanguage
 
 data NoParserForLanguage = NoParserForLanguage FilePath (Maybe Language.Language)
   deriving (Eq, Exception, Ord, Show, Typeable)
@@ -72,61 +76,61 @@ diffBlobPairs renderer = fmap toOutput . distributeFoldMap (diffBlobPair rendere
 -- | A task to parse a pair of 'Blob's, diff them, and render the 'Diff'.
 diffBlobPair :: DiffRenderer output -> Both Blob -> Task output
 diffBlobPair renderer blobs = case (renderer, effectiveLanguage) of
-  (OldToCDiffRenderer, Just Language.Markdown) -> run (\ blob -> parse markdownParser blob >>= decorate (markupSectionAlgebra blob)) diffTerms (renderToCDiff blobs)
-  (OldToCDiffRenderer, Just Language.Python) -> run (\ blob -> parse pythonParser blob >>= decorate (declarationAlgebra blob)) diffTerms (renderToCDiff blobs)
-  (OldToCDiffRenderer, Just Language.Ruby) -> run (\ blob -> parse rubyParser blob >>= decorate (declarationAlgebra blob)) diffTerms (renderToCDiff blobs)
-  (OldToCDiffRenderer, _) | Just syntaxParser <- syntaxParser -> run (\ blob -> parse syntaxParser blob >>= decorate (syntaxDeclarationAlgebra blob)) diffSyntaxTerms (renderToCDiff blobs)
+  (OldToCDiffRenderer, lang)
+    | lang `elem` [ Just Language.Markdown, Just Language.Python, Just Language.Ruby ]
+    , Just (SomeParser parser) <- lang >>= someParser (Proxy :: Proxy '[Diffable, Eq1, Foldable, Functor, GAlign, HasDeclaration, Show1, Traversable]) ->
+      run (\ blob -> parse parser blob >>= decorate (declarationAlgebra blob)) diffTerms (renderToCDiff blobs)
+    | Just syntaxParser <- lang >>= syntaxParserForLanguage ->
+      run (\ blob -> parse syntaxParser blob >>= decorate (syntaxDeclarationAlgebra blob)) diffSyntaxTerms (renderToCDiff blobs)
 
-  (ToCDiffRenderer, Just Language.Markdown) -> run (\ blob -> parse markdownParser blob >>= decorate (markupSectionAlgebra blob)) diffTerms (renderToCDiff blobs)
-  (ToCDiffRenderer, Just Language.Python) -> run (\ blob -> parse pythonParser blob >>= decorate (declarationAlgebra blob)) diffTerms (renderToCDiff blobs)
-  (ToCDiffRenderer, Just Language.Ruby) -> run (\ blob -> parse rubyParser blob >>= decorate (declarationAlgebra blob)) diffTerms (renderToCDiff blobs)
-  (ToCDiffRenderer, Just Language.TypeScript) -> run (\ blob -> parse typescriptParser blob >>= decorate (declarationAlgebra blob)) diffTerms (renderToCDiff blobs)
-  (ToCDiffRenderer, _) | Just syntaxParser <- syntaxParser -> run (\ blob -> parse syntaxParser blob >>= decorate (syntaxDeclarationAlgebra blob)) diffSyntaxTerms (renderToCDiff blobs)
+  (ToCDiffRenderer, lang)
+    | Just (SomeParser parser) <- lang >>= someParser (Proxy :: Proxy '[Diffable, Eq1, Foldable, Functor, GAlign, HasDeclaration, Show1, Traversable]) ->
+      run (\ blob -> parse parser blob >>= decorate (declarationAlgebra blob)) diffTerms (renderToCDiff blobs)
+    | Just syntaxParser <- lang >>= syntaxParserForLanguage ->
+      run (\ blob -> parse syntaxParser blob >>= decorate (syntaxDeclarationAlgebra blob)) diffSyntaxTerms (renderToCDiff blobs)
+
+  (JSONDiffRenderer, lang)
+    | Just (SomeParser parser) <- lang >>= someParser (Proxy :: Proxy '[Diffable, Eq1, Foldable, Functor, GAlign, Show1, Traversable]) ->
+      run (parse parser) diffTerms (renderJSONDiff blobs)
+    | Just syntaxParser <- lang >>= syntaxParserForLanguage ->
+      run (decorate syntaxIdentifierAlgebra <=< parse syntaxParser) diffSyntaxTerms (renderJSONDiff blobs)
+
+  (PatchDiffRenderer, lang)
+    | Just (SomeParser parser) <- lang >>= someParser (Proxy :: Proxy '[Diffable, Eq1, Foldable, Functor, GAlign, Show1, Traversable]) ->
+      run (parse parser) diffTerms (renderPatch blobs)
+    | Just syntaxParser <- lang >>= syntaxParserForLanguage ->
+      run (parse syntaxParser) diffSyntaxTerms (renderPatch blobs)
+
+  (SExpressionDiffRenderer, lang)
+    | Just (SomeParser parser) <- lang >>= someParser (Proxy :: Proxy '[ConstructorName, Diffable, Eq1, Foldable, Functor, GAlign, Show1, Traversable]) ->
+      run (decorate constructorLabel . (Nil <$) <=< parse parser) diffTerms renderSExpressionDiff
+    | Just syntaxParser <- lang >>= syntaxParserForLanguage ->
+      run (fmap (fmap keepCategory) . parse syntaxParser) diffSyntaxTerms renderSExpressionDiff
 
-  (JSONDiffRenderer, Just Language.JSON) -> run (parse jsonParser) diffTerms (renderJSONDiff blobs)
-  (JSONDiffRenderer, Just Language.Markdown) -> run (parse markdownParser) diffTerms (renderJSONDiff blobs)
-  (JSONDiffRenderer, Just Language.Python) -> run (parse pythonParser) diffTerms (renderJSONDiff blobs)
-  (JSONDiffRenderer, Just Language.Ruby) -> run (parse rubyParser) diffTerms (renderJSONDiff blobs)
-  (JSONDiffRenderer, Just Language.TypeScript) -> run (parse typescriptParser) diffTerms (renderJSONDiff blobs)
-  (JSONDiffRenderer, _) | Just syntaxParser <- syntaxParser -> run (decorate syntaxIdentifierAlgebra <=< parse syntaxParser) diffSyntaxTerms (renderJSONDiff blobs)
-  (PatchDiffRenderer, Just Language.JSON) -> run (parse jsonParser) diffTerms (renderPatch blobs)
-  (PatchDiffRenderer, Just Language.Markdown) -> run (parse markdownParser) diffTerms (renderPatch blobs)
-  (PatchDiffRenderer, Just Language.Python) -> run (parse pythonParser) diffTerms (renderPatch blobs)
-  (PatchDiffRenderer, Just Language.Ruby) -> run (parse rubyParser) diffTerms (renderPatch blobs)
-  (PatchDiffRenderer, Just Language.TypeScript) -> run (parse typescriptParser) diffTerms (renderPatch blobs)
-  (PatchDiffRenderer, _) | Just syntaxParser <- syntaxParser -> run (parse syntaxParser) diffSyntaxTerms (renderPatch blobs)
-  (SExpressionDiffRenderer, Just Language.JSON) -> run (decorate constructorLabel <=< parse jsonParser) diffTerms (renderSExpressionDiff . bimap keepConstructorLabel keepConstructorLabel)
-  (SExpressionDiffRenderer, Just Language.Markdown) -> run (decorate constructorLabel <=< parse markdownParser) diffTerms (renderSExpressionDiff . bimap keepConstructorLabel keepConstructorLabel)
-  (SExpressionDiffRenderer, Just Language.Python) -> run (decorate constructorLabel <=< parse pythonParser) diffTerms (renderSExpressionDiff . bimap keepConstructorLabel keepConstructorLabel)
-  (SExpressionDiffRenderer, Just Language.Ruby) -> run (decorate constructorLabel <=< parse rubyParser) diffTerms (renderSExpressionDiff . bimap keepConstructorLabel keepConstructorLabel)
-  (SExpressionDiffRenderer, Just Language.TypeScript) -> run (decorate constructorLabel <=< parse typescriptParser) diffTerms (renderSExpressionDiff . bimap keepConstructorLabel keepConstructorLabel)
-  (SExpressionDiffRenderer, _) | Just syntaxParser <- syntaxParser -> run (parse syntaxParser) diffSyntaxTerms (renderSExpressionDiff . bimap keepCategory keepCategory)
   _ -> throwError (SomeException (NoParserForLanguage effectivePath effectiveLanguage))
   where (effectivePath, effectiveLanguage) = case runJoin blobs of
           (Blob { blobLanguage = Just lang, blobPath = path }, _) -> (path, Just lang)
           (_, Blob { blobLanguage = Just lang, blobPath = path }) -> (path, Just lang)
           (Blob { blobPath = path }, _)                           -> (path, Nothing)
-        syntaxParser = effectiveLanguage >>= parserForLanguage
 
-        run :: Functor syntax => (Blob -> Task (Term syntax ann)) -> (Term syntax ann -> Term syntax ann -> Diff syntax ann ann) -> (Diff syntax ann ann -> output) -> Task output
-        run parse diff renderer = distributeFor blobs parse >>= runBothWith (diffTermPair blobs diff) >>= render renderer
+        run :: (Foldable syntax, Functor syntax) => (Blob -> Task (Term syntax ann)) -> (Term syntax ann -> Term syntax ann -> Diff syntax ann ann) -> (Diff syntax ann ann -> output) -> Task output
+        run parse diff renderer = do
+          terms <- distributeFor blobs parse
+          time "diff" languageTag $ do
+            diff <- runBothWith (diffTermPair blobs diff) terms
+            writeStat (Stat.count "diff.nodes" (bilength diff) languageTag)
+            render renderer diff
+          where
+            showLanguage = pure . (,) "language" . show
+            languageTag = let (a, b) = runJoin blobs
+                          in maybe (maybe [] showLanguage (blobLanguage b)) showLanguage (blobLanguage a)
 
 -- | A task to diff a pair of 'Term's, producing insertion/deletion 'Patch'es for non-existent 'Blob's.
 diffTermPair :: Functor syntax => Both Blob -> Differ syntax ann1 ann2 -> Term syntax ann1 -> Term syntax ann2 -> Task (Diff syntax ann1 ann2)
 diffTermPair blobs differ t1 t2 = case runJoin (blobExists <$> blobs) of
   (True, False) -> pure (deleting t1)
   (False, True) -> pure (inserting t2)
-  _ -> time "diff" logInfo $ diff differ t1 t2
-  where
-    logInfo = let (a, b) = runJoin blobs in
-            [ ("before_path", blobPath a)
-            , ("before_language", maybe "" show (blobLanguage a))
-            , ("after_path", blobPath b)
-            , ("after_language", maybe "" show (blobLanguage b)) ]
-
+  _ -> diff differ t1 t2
 
 keepCategory :: HasField fields Category => Record fields -> Record '[Category]
 keepCategory = (:. Nil) . category
-
-keepConstructorLabel :: Record (ConstructorLabel ': fields) -> Record '[ConstructorLabel]
-keepConstructorLabel = (:. Nil) . rhead

src/Semantic/Log.hs

@@ -5,14 +5,17 @@ import Data.Error (withSGRCode)
 import Data.Foldable (toList)
 import Data.List (intersperse)
 import Data.Semigroup ((<>))
+import qualified Data.Time.Clock.POSIX as Time (getCurrentTime)
 import qualified Data.Time.Format as Time
 import qualified Data.Time.LocalTime as LocalTime
+import Semantic.Queue
 import System.Console.ANSI
-import System.IO (Handle, hIsTerminalDevice)
+import System.IO
 import System.Posix.Process
 import System.Posix.Types
 import Text.Printf
 
+
 -- | A log message at a specific level.
 data Message = Message Level String [(String, String)] LocalTime.ZonedTime
   deriving (Show)
@@ -24,6 +27,17 @@ data Level
   | Debug
   deriving (Eq, Ord, Show)
 
+
+-- | Queue a message to be logged.
+queueLogMessage :: AsyncQueue Message Options -> Level -> String -> [(String, String)] -> IO ()
+queueLogMessage q@AsyncQueue{..} level message pairs
+  | Just logLevel <- optionsLevel asyncQueueExtra, level <= logLevel = Time.getCurrentTime >>= LocalTime.utcToLocalZonedTime >>= queue q . Message level message pairs
+  | otherwise = pure ()
+
+-- | Log a message to stderr.
+logMessage :: Options -> Message -> IO ()
+logMessage options@Options{..} = hPutStr stderr . optionsFormatter options
+
 -- | Format log messaging using "logfmt".
 --
 -- Logfmt is a loosely defined logging format (see https://brandur.org/logfmt)

src/Semantic/Queue.hs

@@ -0,0 +1,54 @@
+module Semantic.Queue
+(
+  AsyncQueue(..)
+, newQueue
+, newQueue'
+, queue
+, closeQueue
+)
+where
+
+import Control.Concurrent.Async as Async
+import Control.Concurrent.STM.TMQueue
+import GHC.Conc
+
+-- | 'AsyncQueue' represents a 'TMQueue' that's drained from a separate thread.
+-- It is intended to be used to queue data from a pure function and then process
+-- that data in IO on a separate thread. 'AsyncQueue' is parameterized by:
+--   * 'a'     - the type of message stored on the queue.
+--   * 'extra' - any other type needed to process messages on the queue.
+data AsyncQueue a extra
+  = AsyncQueue
+  { asyncQueue :: TMQueue a    -- ^ The underlying 'TMQueue'.
+  , asyncQueueSink :: Async () -- ^ A sink that will drain the queue.
+  , asyncQueueExtra :: extra   -- ^ Any exta data the queue needs to use.
+  }
+
+
+-- | Create a new AsyncQueue using the default sink.
+newQueue :: (extra -> a -> IO ()) -> extra -> IO (AsyncQueue a extra)
+newQueue = newQueue' . sink
+
+-- | Create a new AsyncQueue, specifying a custom sink.
+newQueue' :: (extra -> TMQueue a -> IO ()) -> extra -> IO (AsyncQueue a extra)
+newQueue' f extra = do
+  q <- newTMQueueIO
+  s <- Async.async (f extra q)
+  pure (AsyncQueue q s extra)
+
+-- | Queue a message.
+queue :: AsyncQueue a extra -> a -> IO ()
+queue AsyncQueue{..} = atomically . writeTMQueue asyncQueue
+
+-- | Drain messages from the queue, calling the specified function for each message.
+sink :: (extra -> a -> IO ()) -> extra -> TMQueue a -> IO ()
+sink f extra q = do
+  msg <- atomically (readTMQueue q)
+  maybe (pure ()) go msg
+  where go msg = f extra msg >> sink f extra q
+
+-- | Close the queue.
+closeQueue :: AsyncQueue a extra -> IO ()
+closeQueue AsyncQueue{..} = do
+  atomically (closeTMQueue asyncQueue)
+  Async.wait asyncQueueSink

src/Semantic/Stat.hs

@@ -0,0 +1,199 @@
+module Semantic.Stat
+(
+-- Primary API for creating stats.
+  increment
+, decrement
+, count
+, gauge
+, timing
+, withTiming
+, histogram
+, set
+, Stat
+
+-- Client
+, defaultStatsClient
+, StatsClient(..)
+
+-- Internal, exposed for testing
+, renderDatagram
+, sendStat
+) where
+
+
+import Data.Functor
+import Data.List (intercalate)
+import Data.List.Split (splitOneOf)
+import Data.Maybe
+import Data.Monoid
+import Network.Socket (Socket(..), SocketType(..), socket, connect, getAddrInfo, addrFamily, addrAddress, defaultProtocol)
+import Network.Socket.ByteString
+import Network.URI
+import Numeric
+import qualified Data.ByteString.Char8 as B
+import System.Environment
+import System.IO.Error
+import qualified Data.Time.Clock as Time
+import qualified Data.Time.Clock.POSIX as Time (getCurrentTime)
+
+-- | A named piece of data you wish to record a specific 'Metric' for.
+-- See https://docs.datadoghq.com/guides/dogstatsd/ for more details.
+data Stat
+  = Stat
+  { statName :: String  -- ^ Stat name, usually separated by '.' (e.g. "system.metric.name")
+  , statValue :: Metric -- ^ 'Metric' value.
+  , statTags :: Tags    -- ^ Key/value 'Tags' (optional).
+  }
+
+-- | The various supported metric types in Datadog.
+data Metric
+  = Counter Int       -- ^ Counters track how many times something happens per second.
+  | Gauge Double      -- ^ Gauges track the ebb and flow of a particular metric value over time.
+  | Histogram Double  -- ^ Histograms calculate the statistical distribution of any kind of value.
+  | Set Double        -- ^ Sets count the number of unique elements in a group
+  | Timer Double      -- ^ Timers measure the amount of time a section of code takes to execute.
+
+-- | Tags are key/value annotations. Values can blank.
+type Tags = [(String, String)]
+
+
+-- | Increment a counter.
+increment :: String -> Tags -> Stat
+increment n = count n 1
+
+-- | Decrement a counter.
+decrement :: String -> Tags -> Stat
+decrement n = count n (-1)
+
+-- | Arbitrary count.
+count :: String -> Int -> Tags -> Stat
+count n v = Stat n (Counter v)
+
+-- | Arbitrary gauge value.
+gauge :: String -> Double -> Tags -> Stat
+gauge n v = Stat n (Gauge v)
+
+-- | Timing in milliseconds.
+timing :: String -> Double -> Tags -> Stat
+timing n v = Stat n (Timer v)
+
+-- | Run an IO Action and record timing
+withTiming :: (Stat -> IO ()) -> String -> Tags -> IO a -> IO a
+withTiming statter name tags f = do
+  start <- Time.getCurrentTime
+  result <- f
+  end <- Time.getCurrentTime
+  let duration = realToFrac (Time.diffUTCTime end start * 1000)
+  statter (timing name duration tags)
+  pure result
+
+-- | Histogram measurement.
+histogram :: String -> Double -> Tags -> Stat
+histogram n v = Stat n (Histogram v)
+
+-- | Set counter.
+set :: String -> Double -> Tags -> Stat
+set n v = Stat n (Set v)
+
+-- | Client for sending stats on a UDP socket.
+data StatsClient
+  = StatsClient
+  { statsClientUDPSocket :: Socket
+  , statsClientNamespace :: String
+  , statsClientUDPHost :: String
+  , statsClientUDPPort :: String
+  }
+
+-- | Create a default stats client. This function consults two optional
+--   environment variables for the stats URI (default: 127.0.0.1:28125).
+--     * STATS_ADDR     - String URI to send stats to in the form of `host:port`.
+--     * DOGSTATSD_HOST - String hostname which will override the above host.
+--                        Generally used on kubes pods.
+defaultStatsClient :: IO StatsClient
+defaultStatsClient = do
+  addr <- lookupEnv "STATS_ADDR"
+  let (host', port) = parseAddr (fmap ("statsd://" <>) addr)
+
+  -- When running in Kubes, DOGSTATSD_HOST is set with the dogstatsd host.
+  kubesHost <- lookupEnv "DOGSTATSD_HOST"
+  let host = fromMaybe host' kubesHost
+
+  statsClient host port "semantic"
+  where
+    defaultHost = "127.0.0.1"
+    defaultPort = "28125"
+    parseAddr a | Just s <- a
+                , Just (Just (URIAuth _ host port)) <- uriAuthority <$> parseURI s
+                = (parseHost host, parsePort port)
+                | otherwise = (defaultHost, defaultPort)
+    parseHost s = if null s then defaultHost else s
+    parsePort s = if null s then defaultPort else dropWhile (':' ==) s
+
+
+-- | Create a StatsClient at the specified host and port with a namespace prefix.
+statsClient :: String -> String -> String -> IO StatsClient
+statsClient host port statsClientNamespace = do
+  (addr:_) <- getAddrInfo Nothing (Just host) (Just port)
+  sock <- socket (addrFamily addr) Datagram defaultProtocol
+  connect sock (addrAddress addr)
+  pure (StatsClient sock statsClientNamespace host port)
+
+-- | Send a stat over the StatsClient's socket.
+sendStat :: StatsClient -> Stat -> IO ()
+sendStat StatsClient{..} = void . tryIOError . sendAll statsClientUDPSocket . B.pack . renderDatagram statsClientNamespace
+
+
+-- Datagram Rendering
+
+-- | Rendering of stats to their datagrams representations, which are packed and
+-- sent over a socket.
+class Render a where
+  renders :: a -> RenderS
+
+-- | A Function that prepends the output 'String' to an existing 'String'.
+-- Analogous to 'ShowS'.
+type RenderS = String -> String
+
+-- | Utility function to prepend the string unchanged.
+renderString :: String -> RenderS
+renderString = (<>)
+
+-- | Internal: Clean a stat name of reserved chars `|, @, :`
+clean :: String -> String
+clean = intercalate "_" . splitOneOf "|@:"
+
+-- | Render a Stat (with namespace prefix) to a datagram String.
+renderDatagram :: String -> Stat -> String
+renderDatagram namespace stat = renderString prefix (renders stat "")
+  where prefix | null namespace = ""
+               | otherwise = clean namespace <> "."
+
+
+-- Instances
+
+instance Render Stat where
+  renders Stat{..}
+    = renderString (clean statName)
+    . renderString ":"
+    . renders statValue
+    . renders statTags
+
+instance Render Metric where
+  renders (Counter x)   = renders x . renderString "|c"
+  renders (Gauge x)     = renders x . renderString "|g"
+  renders (Histogram x) = renders x . renderString "|h"
+  renders (Set x)       = renders x . renderString "|s"
+  renders (Timer x)     = renders x . renderString "|ms"
+
+instance Render Tags where
+  renders [] = renderString ""
+  renders xs = renderString "|#" . (\x -> x <> intercalate "," (renderTag <$> xs))
+    where
+      renderTag (k, "") = k
+      renderTag (k, v) = k <> ":" <> v
+
+instance Render Int where
+  renders = shows
+
+instance Render Double where
+  renders = showFFloat (Just 5)

src/Semantic/Task.hs

@@ -1,4 +1,4 @@
-{-# LANGUAGE DataKinds, GADTs, MultiParamTypeClasses, TypeOperators, BangPatterns #-}
+{-# LANGUAGE DataKinds, GADTs, MultiParamTypeClasses, TypeOperators #-}
 module Semantic.Task
 ( Task
 , Level(..)
@@ -8,6 +8,7 @@ module Semantic.Task
 , readBlobPairs
 , writeToOutput
 , writeLog
+, writeStat
 , time
 , parse
 , decorate
@@ -24,7 +25,6 @@ module Semantic.Task
 , runTaskWithOptions
 ) where
 
-import Control.Concurrent.STM.TMQueue
 import Control.Exception
 import Control.Monad.Error.Class
 import Control.Monad.IO.Class
@@ -39,31 +39,30 @@ import Data.Foldable (fold, for_)
 import Data.Functor.Both as Both hiding (snd)
 import Data.Functor.Foldable (cata)
 import Data.Record
-import Data.Semigroup ((<>))
 import qualified Data.Syntax as Syntax
 import Data.Syntax.Algebra (RAlgebra, decoratorWithAlgebra)
 import qualified Data.Syntax.Assignment as Assignment
 import Data.Term
-import qualified Data.Time.Clock as Time
-import qualified Data.Time.Clock.POSIX as Time (getCurrentTime)
-import qualified Data.Time.LocalTime as LocalTime
 import Data.Union
 import Info hiding (Category(..))
 import qualified Files
-import GHC.Conc (atomically)
 import Language
 import Language.Markdown
 import Parser
 import System.Exit (die)
-import System.IO (Handle, hPutStr, stderr)
+import System.IO (Handle, stderr)
 import TreeSitter
 import Semantic.Log
+import Semantic.Stat as Stat
+import Semantic.Queue
+
 
 data TaskF output where
   ReadBlobs :: Either Handle [(FilePath, Maybe Language)] -> TaskF [Blob]
   ReadBlobPairs :: Either Handle [Both (FilePath, Maybe Language)] -> TaskF [Both Blob]
   WriteToOutput :: Either Handle FilePath -> B.ByteString -> TaskF ()
   WriteLog :: Level -> String -> [(String, String)] -> TaskF ()
+  WriteStat :: Stat -> TaskF ()
   Time :: String -> [(String, String)] -> Task output -> TaskF output
   Parse :: Parser term -> Blob -> TaskF term
   Decorate :: Functor f => RAlgebra (TermF f (Record fields)) (Term f (Record fields)) field -> Term f (Record fields) -> TaskF (Term f (Record (field ': fields)))
@@ -99,14 +98,17 @@ readBlobPairs from = ReadBlobPairs from `Then` return
 writeToOutput :: Either Handle FilePath -> B.ByteString -> Task ()
 writeToOutput path contents = WriteToOutput path contents `Then` return
 
-
 -- | A 'Task' which logs a message at a specific log level to stderr.
 writeLog :: Level -> String -> [(String, String)] -> Task ()
 writeLog level message pairs = WriteLog level message pairs `Then` return
 
--- | A 'Task' which measures and logs the timing of another 'Task'.
+-- | A 'Task' which writes a stat.
+writeStat :: Stat -> Task ()
+writeStat stat = WriteStat stat `Then` return
+
+-- | A 'Task' which measures and stats the timing of another 'Task'.
 time :: String -> [(String, String)] -> Task output -> Task output
-time message pairs task = Time message pairs task `Then` return
+time statName tags task = Time statName tags task `Then` return
 
 -- | A 'Task' which parses a 'Blob' with the given 'Parser'.
 parse :: Parser term -> Blob -> Task term
@@ -148,82 +150,86 @@ distributeFoldMap toTask inputs = fmap fold (distribute (fmap toTask inputs))
 runTask :: Task a -> IO a
 runTask = runTaskWithOptions defaultOptions
 
+
 -- | Execute a 'Task' with the passed 'Options', yielding its result value in 'IO'.
 runTaskWithOptions :: Options -> Task a -> IO a
 runTaskWithOptions options task = do
   options <- configureOptionsForHandle stderr options
-  logQueue <- newTMQueueIO
-  logging <- Async.async (logSink options logQueue)
+  statter <- defaultStatsClient >>= newQueue sendStat
+  logger <- newQueue logMessage options
 
-  result <- run options logQueue task
-  atomically (closeTMQueue logQueue)
-  Async.wait logging
+  result <- withTiming (queue statter) "run" [] $
+    run options logger statter task
+
+  closeQueue statter
+  closeQueue logger
   either (die . displayException) pure result
-  where logSink options@Options{..} queue = do
-          message <- atomically (readTMQueue queue)
-          case message of
-            Just message -> do
-              hPutStr stderr (optionsFormatter options message)
-              logSink options queue
-            _ -> pure ()
-        run :: Options -> TMQueue Message -> Task a -> IO (Either SomeException a)
-        run options logQueue = go
-          where go :: Task a -> IO (Either SomeException a)
-                go = iterFreerA (\ task yield -> case task of
-                  ReadBlobs source -> (either Files.readBlobsFromHandle (traverse (uncurry Files.readFile)) source >>= yield) `catchError` (pure . Left . toException)
-                  ReadBlobPairs source -> (either Files.readBlobPairsFromHandle (traverse (traverse (uncurry Files.readFile))) source >>= yield) `catchError` (pure . Left . toException)
-                  WriteToOutput destination contents -> either B.hPutStr B.writeFile destination contents >>= yield
-                  WriteLog level message pairs -> queueLogMessage level message pairs >>= yield
-                  Time message pairs task -> do
-                    start <- Time.getCurrentTime
-                    !res <- go task
-                    end <- Time.getCurrentTime
-                    queueLogMessage Info message (pairs <> [("duration", show (Time.diffUTCTime end start))])
-                    either (pure . Left) yield res
-                  Parse parser blob -> go (runParser options blob parser) >>= either (pure . Left) yield
-                  Decorate algebra term -> pure (decoratorWithAlgebra algebra term) >>= yield
-                  Semantic.Task.Diff differ term1 term2 -> pure (differ term1 term2) >>= yield
-                  Render renderer input -> pure (renderer input) >>= yield
-                  Distribute tasks -> Async.mapConcurrently go tasks >>= either (pure . Left) yield . sequenceA . withStrategy (parTraversable (parTraversable rseq))
-                  LiftIO action -> action >>= yield
-                  Throw err -> pure (Left err)
-                  Catch during handler -> do
-                    result <- go during
-                    case result of
-                      Left err -> go (handler err) >>= either (pure . Left) yield
-                      Right a -> yield a) . fmap Right
-                queueLogMessage level message pairs
-                  | Just logLevel <- optionsLevel options, level <= logLevel = Time.getCurrentTime >>= LocalTime.utcToLocalZonedTime >>= atomically . writeTMQueue logQueue . Message level message pairs
-                  | otherwise = pure ()
-
+  where
+    run :: Options
+        -> AsyncQueue Message Options
+        -> AsyncQueue Stat StatsClient
+        -> Task a
+        -> IO (Either SomeException a)
+    run options logger statter = go
+      where
+        go :: Task a -> IO (Either SomeException a)
+        go = iterFreerA (\ task yield -> case task of
+          ReadBlobs source -> (either Files.readBlobsFromHandle (traverse (uncurry Files.readFile)) source >>= yield) `catchError` (pure . Left . toException)
+          ReadBlobPairs source -> (either Files.readBlobPairsFromHandle (traverse (traverse (uncurry Files.readFile))) source >>= yield) `catchError` (pure . Left . toException)
+          WriteToOutput destination contents -> either B.hPutStr B.writeFile destination contents >>= yield
+          WriteLog level message pairs -> queueLogMessage logger level message pairs >>= yield
+          WriteStat stat -> queue statter stat >>= yield
+          Time statName tags task -> withTiming (queue statter) statName tags (go task) >>= either (pure . Left) yield
+          Parse parser blob -> go (runParser options blob parser) >>= either (pure . Left) yield
+          Decorate algebra term -> pure (decoratorWithAlgebra algebra term) >>= yield
+          Semantic.Task.Diff differ term1 term2 -> pure (differ term1 term2) >>= yield
+          Render renderer input -> pure (renderer input) >>= yield
+          Distribute tasks -> Async.mapConcurrently go tasks >>= either (pure . Left) yield . sequenceA . withStrategy (parTraversable (parTraversable rseq))
+          LiftIO action -> action >>= yield
+          Throw err -> pure (Left err)
+          Catch during handler -> do
+            result <- go during
+            case result of
+              Left err -> go (handler err) >>= either (pure . Left) yield
+              Right a -> yield a) . fmap Right
 
 runParser :: Options -> Blob -> Parser term -> Task term
 runParser Options{..} blob@Blob{..} = go
-  where go :: Parser term -> Task term
-        go parser = case parser of
-          ASTParser language ->
-            logTiming "ts ast parse" $
-              liftIO ((Right <$> parseToAST language blob) `catchError` (pure . Left . toException)) >>= either throwError pure
-          AssignmentParser parser assignment -> do
-            ast <- go parser `catchError` \ err -> writeLog Error "failed parsing" (("tag", "parse") : blobFields) >> throwError err
-            logTiming "assign" $ case Assignment.assign blobSource assignment ast of
-              Left err -> do
-                let formatted = Error.formatError optionsPrintSource (optionsIsTerminal && optionsEnableColour) blob err
-                writeLog Error formatted (("tag", "assign") : blobFields)
-                throwError (toException err)
-              Right term -> do
-                for_ (errors term) $ \ err ->
-                  writeLog Warning (Error.formatError optionsPrintSource (optionsIsTerminal && optionsEnableColour) blob err) (("tag", "assign") : blobFields)
-                pure term
-          TreeSitterParser tslanguage -> logTiming "ts parse" $ liftIO (treeSitterParser tslanguage blob)
-          MarkdownParser -> logTiming "cmark parse" $ pure (cmarkParser blobSource)
-        blobFields = ("path", blobPath) : maybe [] (pure . (,) "language" . show) blobLanguage
-        errors :: (Syntax.Error :< fs, Apply Foldable fs, Apply Functor fs) => Term (Union fs) (Record Assignment.Location) -> [Error.Error String]
-        errors = cata $ \ (In a syntax) -> case syntax of
-          _ | Just err@Syntax.Error{} <- prj syntax -> [Syntax.unError (sourceSpan a) err]
-          _ -> fold syntax
-        logTiming :: String -> Task a -> Task a
-        logTiming msg = time msg blobFields
+  where
+    go :: Parser term -> Task term
+    go parser = case parser of
+      ASTParser language ->
+        time "parse.tree_sitter_ast_parse" languageTag $
+          liftIO ((Right <$> parseToAST language blob) `catchError` (pure . Left . toException)) >>= either throwError pure
+      AssignmentParser parser assignment -> do
+        ast <- go parser `catchError` \ err -> do
+          writeStat (Stat.increment "parse.parse_failures" languageTag)
+          writeLog Error "failed parsing" (("tag", "parse") : blobFields)
+          throwError err
+        time "parse.assign" languageTag $
+          case Assignment.assign blobSource assignment ast of
+            Left err -> do
+              writeStat (Stat.increment "parse.assign_errors" languageTag)
+              writeLog Error (Error.formatError optionsPrintSource (optionsIsTerminal && optionsEnableColour) blob err) (("tag", "assign") : blobFields)
+              throwError (toException err)
+            Right term -> do
+              for_ (errors term) $ \ err -> do
+                writeStat (Stat.increment "parse.parse_errors" languageTag)
+                writeLog Warning (Error.formatError optionsPrintSource (optionsIsTerminal && optionsEnableColour) blob err) (("tag", "assign") : blobFields)
+              writeStat (Stat.count "parse.nodes" (length term) languageTag)
+              pure term
+      TreeSitterParser tslanguage ->
+        time "parse.tree_sitter_parse" languageTag $
+          liftIO (treeSitterParser tslanguage blob)
+      MarkdownParser ->
+        time "parse.cmark_parse" languageTag $
+          pure (cmarkParser blobSource)
+    blobFields = ("path", blobPath) : languageTag
+    languageTag = maybe [] (pure . (,) ("language" :: String) . show) blobLanguage
+    errors :: (Syntax.Error :< fs, Apply Foldable fs, Apply Functor fs) => Term (Union fs) (Record Assignment.Location) -> [Error.Error String]
+    errors = cata $ \ (In a syntax) -> case syntax of
+      _ | Just err@Syntax.Error{} <- prj syntax -> [Syntax.unError (sourceSpan a) err]
+      _ -> fold syntax
 
 instance MonadIO Task where
   liftIO action = LiftIO action `Then` return

src/Semantic/Util.hs

@@ -1,6 +1,8 @@
-{-# LANGUAGE TypeOperators, DataKinds #-}
+-- MonoLocalBinds is to silence a warning about a simplifiable constraint.
+{-# LANGUAGE DataKinds, MonoLocalBinds, TypeOperators #-}
 module Semantic.Util where
 
+import Control.Monad.IO.Class
 import Data.Blob
 import Language.Haskell.HsColour (hscolour, Output(TTY))
 import Language.Haskell.HsColour.Colourise (defaultColourPrefs)
@@ -18,35 +20,26 @@ import Data.Diff
 import Semantic
 import Semantic.Task
 import Renderer.TOC
-import Data.Union
-import Data.Syntax.Declaration as Declaration
 import Data.Range
 import Data.Span
-import Data.Syntax
 
 -- Produces colorized pretty-printed output for the terminal / GHCi.
 pp :: Show a => a -> IO ()
 pp = putStrLn . hscolour TTY defaultColourPrefs False False "" False . ppShow
 
-file :: FilePath -> IO Blob
+file :: MonadIO m => FilePath -> m Blob
 file path = Files.readFile path (languageForFilePath path)
 
 diffWithParser :: (HasField fields Data.Span.Span,
                    HasField fields Range,
-                   Error :< fs,
-                   Context :< fs,
-                   Declaration.Method :< fs,
-                   Declaration.Function :< fs,
-                   Declaration.Class :< fs,
-                   Empty :< fs,
-                   Apply Eq1 fs, Apply Show1 fs,
-                   Apply Traversable fs, Apply Functor fs,
-                   Apply Foldable fs, Apply Diffable fs,
-                   Apply GAlign fs)
+                   Eq1 syntax, Show1 syntax,
+                   Traversable syntax, Functor syntax,
+                   Foldable syntax, Diffable syntax,
+                   GAlign syntax, HasDeclaration syntax)
                   =>
-                  Parser (Term (Data.Union.Union fs) (Record fields))
+                  Parser (Term syntax (Record fields))
                   -> Both Blob
-                  -> Task (Diff (Union fs) (Record (Maybe Declaration ': fields)) (Record (Maybe Declaration ': fields)))
+                  -> Task (Diff syntax (Record (Maybe Declaration ': fields)) (Record (Maybe Declaration ': fields)))
 diffWithParser parser = run (\ blob -> parse parser blob >>= decorate (declarationAlgebra blob))
   where
     run parse sourceBlobs = distributeFor sourceBlobs parse >>= runBothWith (diffTermPair sourceBlobs diffTerms)

src/TreeSitter.hs

@@ -20,8 +20,7 @@ import Data.Term
 import Data.Text (Text, pack)
 import Language
 import qualified Language.Go as Go
-import qualified Language.Ruby as Ruby
-import qualified Language.Ruby as TypeScript
+import qualified Language.TypeScript as TypeScript
 import Foreign
 import Foreign.C.String (peekCString)
 import Foreign.Marshal.Array (allocaArray)
@@ -30,7 +29,6 @@ import qualified TreeSitter.Document as TS
 import qualified TreeSitter.Node as TS
 import qualified TreeSitter.Language as TS
 import qualified TreeSitter.Go as TS
-import qualified TreeSitter.Ruby as TS
 import qualified TreeSitter.TypeScript as TS
 import Info
 
@@ -114,7 +112,6 @@ assignTerm language source annotation children allChildren =
   where assignTermByLanguage :: Source -> Category -> [ Term S.Syntax (Record DefaultFields) ] -> Maybe (S.Syntax (Term S.Syntax (Record DefaultFields)))
         assignTermByLanguage = case languageForTSLanguage language of
           Just Language.Go -> Go.termAssignment
-          Just Ruby -> Ruby.termAssignment
           Just TypeScript -> TypeScript.termAssignment
           _ -> \ _ _ _ -> Nothing
 
@@ -192,14 +189,13 @@ categoryForLanguageProductionName = withDefaults . byLanguage
       s -> productionMap s
 
     byLanguage language = case languageForTSLanguage language of
-      Just Ruby -> Ruby.categoryForRubyName
       Just Language.Go -> Go.categoryForGoName
+      Just Language.TypeScript -> TypeScript.categoryForTypeScriptName
       _ -> Other
 
 
 languageForTSLanguage :: Ptr TS.Language -> Maybe Language
 languageForTSLanguage = flip lookup
   [ (TS.tree_sitter_go, Language.Go)
-  , (TS.tree_sitter_ruby, Ruby)
   , (TS.tree_sitter_typescript, TypeScript)
   ]

test/Semantic/StatSpec.hs

@@ -0,0 +1,83 @@
+module Semantic.StatSpec where
+
+import Semantic.Stat
+import Test.Hspec hiding (shouldBe, shouldNotBe, shouldThrow, errorCall)
+import Test.Hspec.Expectations.Pretty
+import System.Environment
+import Control.Exception
+import Network.Socket hiding (recv)
+import Network.Socket.ByteString
+
+
+withSocketPair :: ((Socket, Socket) -> IO c) -> IO c
+withSocketPair = bracket create release
+  where create = socketPair AF_UNIX Datagram defaultProtocol
+        release (client, server) = close client >> close server
+
+withEnvironment :: String -> String -> (() -> IO ()) -> IO ()
+withEnvironment key value = bracket (setEnv key value) (const (unsetEnv key))
+
+-- NOTE: These cannot easily run in parallel because we test things like
+-- setting/unsetting the environment.
+spec :: Spec
+spec = do
+  describe "defaultStatsClient" $ do
+    it "sets appropriate defaults" $ do
+      StatsClient{..} <- defaultStatsClient
+      statsClientNamespace `shouldBe` "semantic"
+      statsClientUDPHost `shouldBe` "127.0.0.1"
+      statsClientUDPPort `shouldBe` "28125"
+
+    around (withEnvironment "STATS_ADDR" "localhost:8125") $
+      it "takes STATS_ADDR from environment" $ do
+        StatsClient{..} <- defaultStatsClient
+        statsClientUDPHost `shouldBe` "localhost"
+        statsClientUDPPort `shouldBe` "8125"
+
+    around (withEnvironment "STATS_ADDR" "localhost") $
+      it "handles STATS_ADDR with just hostname" $ do
+        StatsClient{..} <- defaultStatsClient
+        statsClientUDPHost `shouldBe` "localhost"
+        statsClientUDPPort `shouldBe` "28125"
+
+    around (withEnvironment "DOGSTATSD_HOST" "0.0.0.0") $
+      it "takes DOGSTATSD_HOST from environment" $ do
+        StatsClient{..} <- defaultStatsClient
+        statsClientUDPHost `shouldBe` "0.0.0.0"
+        statsClientUDPPort `shouldBe` "28125"
+
+  describe "renderDatagram" $ do
+    let key = "app.metric"
+
+    describe "counters" $ do
+      it "renders increment" $
+        renderDatagram "" (increment key []) `shouldBe` "app.metric:1|c"
+      it "renders decrement" $
+        renderDatagram "" (decrement key []) `shouldBe` "app.metric:-1|c"
+      it "renders count" $
+        renderDatagram "" (count key 8 []) `shouldBe` "app.metric:8|c"
+
+    it "renders statsClientNamespace" $
+      renderDatagram "pre" (increment key []) `shouldBe` "pre.app.metric:1|c"
+
+    describe "tags" $ do
+      it "renders a tag" $ do
+        let inc = increment key [("key", "value")]
+        renderDatagram "" inc `shouldBe` "app.metric:1|c|#key:value"
+      it "renders a tag without value" $ do
+        let inc = increment key [("a", "")]
+        renderDatagram "" inc `shouldBe` "app.metric:1|c|#a"
+      it "renders tags" $ do
+        let inc = increment key [("key", "value"), ("a", "true")]
+        renderDatagram "" inc `shouldBe` "app.metric:1|c|#key:value,a:true"
+      it "renders tags without value" $ do
+        let inc = increment key [("key", "value"), ("a", "")]
+        renderDatagram "" inc `shouldBe` "app.metric:1|c|#key:value,a"
+
+  describe "sendStat" $
+    it "delivers datagram" $ do
+      client@StatsClient{..} <- defaultStatsClient
+      withSocketPair $ \(clientSoc, serverSoc) -> do
+        sendStat client { statsClientUDPSocket = clientSoc } (increment "app.metric" [])
+        info <- recv serverSoc 1024
+        info `shouldBe` "semantic.app.metric:1|c"

test/SemanticCmdLineSpec.hs

@@ -62,9 +62,6 @@ diffFixtures =
 
         patchOutput = "diff --git a/test/fixtures/ruby/method-declaration.A.rb b/test/fixtures/ruby/method-declaration.B.rb\nindex 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644\n--- a/test/fixtures/ruby/method-declaration.A.rb\n+++ b/test/fixtures/ruby/method-declaration.B.rb\n@@ -1,3 +1,4 @@\n-def foo\n+def bar(a)\n+  baz\n end\n\n"
 
-        jsonOutput = "{\"diff\":{\"merge\":{\"after\":{\"sourceRange\":[0,21],\"sourceSpan\":{\"start\":[1,1],\"end\":[4,1]}},\"children\":[{\"merge\":{\"after\":{\"sourceRange\":[0,20],\"sourceSpan\":{\"start\":[1,1],\"end\":[3,4]}},\"children\":[{\"merge\":{\"after\":{\"sourceRange\":[0,3],\"sourceSpan\":{\"start\":[1,1],\"end\":[1,4]}},\"children\":[],\"before\":{\"sourceRange\":[0,3],\"sourceSpan\":{\"start\":[1,1],\"end\":[1,4]}}}},{\"patch\":{\"replace\":[{\"children\":[],\"sourceRange\":[4,7],\"sourceSpan\":{\"start\":[1,5],\"end\":[1,8]}},{\"children\":[],\"sourceRange\":[4,7],\"sourceSpan\":{\"start\":[1,5],\"end\":[1,8]}}]}},{\"patch\":{\"insert\":{\"children\":[],\"sourceRange\":[8,9],\"sourceSpan\":{\"start\":[1,9],\"end\":[1,10]}}}},{\"merge\":{\"after\":{\"sourceRange\":[13,16],\"sourceSpan\":{\"start\":[2,3],\"end\":[2,6]}},\"children\":[{\"patch\":{\"insert\":{\"children\":[],\"sourceRange\":[13,16],\"sourceSpan\":{\"start\":[2,3],\"end\":[2,6]}}}}],\"before\":{\"sourceRange\":[8,11],\"sourceSpan\":{\"start\":[2,1],\"end\":[2,4]}}}}],\"before\":{\"sourceRange\":[0,11],\"sourceSpan\":{\"start\":[1,1],\"end\":[2,4]}}}}],\"before\":{\"sourceRange\":[0,12],\"sourceSpan\":{\"start\":[1,1],\"end\":[3,1]}}}},\"oids\":[\"0000000000000000000000000000000000000000\",\"0000000000000000000000000000000000000000\"],\"paths\":[\"test/fixtures/ruby/method-declaration.A.rb\",\"test/fixtures/ruby/method-declaration.B.rb\"]}\n"
+        jsonOutput = "{\"diff\":{\"merge\":{\"after\":{\"sourceRange\":[0,21],\"sourceSpan\":{\"start\":[1,1],\"end\":[4,1]}},\"children\":[{\"merge\":{\"after\":{\"sourceRange\":[0,20],\"sourceSpan\":{\"start\":[1,1],\"end\":[3,4]}},\"children\":[{\"merge\":{\"after\":{\"sourceRange\":[0,0],\"sourceSpan\":{\"start\":[1,1],\"end\":[1,1]}},\"children\":[],\"before\":{\"sourceRange\":[0,0],\"sourceSpan\":{\"start\":[1,1],\"end\":[1,1]}}}},{\"patch\":{\"replace\":[{\"children\":[],\"sourceRange\":[4,7],\"sourceSpan\":{\"start\":[1,5],\"end\":[1,8]}},{\"children\":[],\"sourceRange\":[4,7],\"sourceSpan\":{\"start\":[1,5],\"end\":[1,8]}}]}},{\"patch\":{\"insert\":{\"children\":[],\"sourceRange\":[8,9],\"sourceSpan\":{\"start\":[1,9],\"end\":[1,10]}}}},{\"merge\":{\"after\":{\"sourceRange\":[13,16],\"sourceSpan\":{\"start\":[2,3],\"end\":[2,6]}},\"children\":[{\"patch\":{\"insert\":{\"children\":[],\"sourceRange\":[13,16],\"sourceSpan\":{\"start\":[2,3],\"end\":[2,6]}}}}],\"before\":{\"sourceRange\":[8,11],\"sourceSpan\":{\"start\":[2,1],\"end\":[2,4]}}}}],\"before\":{\"sourceRange\":[0,11],\"sourceSpan\":{\"start\":[1,1],\"end\":[2,4]}}}}],\"before\":{\"sourceRange\":[0,12],\"sourceSpan\":{\"start\":[1,1],\"end\":[3,1]}}}},\"oids\":[\"0000000000000000000000000000000000000000\",\"0000000000000000000000000000000000000000\"],\"paths\":[\"test/fixtures/ruby/method-declaration.A.rb\",\"test/fixtures/ruby/method-declaration.B.rb\"]}\n"
         sExpressionOutput = "(Program\n  (Method\n    (Empty)\n  { (Identifier)\n  ->(Identifier) }\n  {+(Identifier)+}\n    (\n    {+(Identifier)+})))\n"
         tocOutput = "{\"changes\":{\"test/fixtures/ruby/method-declaration.A.rb -> test/fixtures/ruby/method-declaration.B.rb\":[{\"span\":{\"start\":[1,1],\"end\":[3,4]},\"category\":\"Method\",\"term\":\"bar\",\"changeType\":\"modified\"}]},\"errors\":{}}\n"
-
-repo :: FilePath
-repo = "test/fixtures/git/examples/all-languages.git"

test/Spec.hs

@@ -16,10 +16,12 @@ import qualified TOCSpec
 import qualified IntegrationSpec
 import qualified SemanticCmdLineSpec
 import qualified SemanticSpec
+import qualified Semantic.StatSpec
 import Test.Hspec
 
 main :: IO ()
 main = hspec $ do
+  describe "Semantic.Stat" Semantic.StatSpec.spec
   parallel $ do
     describe "Alignment" AlignmentSpec.spec
     describe "Command" CommandSpec.spec

test/TOCSpec.hs

@@ -89,7 +89,7 @@ spec = parallel $ do
 
     it "summarizes Go methods with receivers with special formatting" $ do
       sourceBlobs <- blobsForPaths (both "go/method-with-receiver.A.go" "go/method-with-receiver.B.go")
-      let Just goParser = parserForLanguage Go
+      let Just goParser = syntaxParserForLanguage Go
       diff <- runTask $ distributeFor sourceBlobs (\ blob -> parse goParser blob >>= decorate (syntaxDeclarationAlgebra blob)) >>= runBothWith (diffTermPair sourceBlobs diffSyntaxTerms)
       diffTOC diff `shouldBe`
         [ JSONSummary "Method" "(*apiClient) CheckAuth" (sourceSpanBetween (3,1) (3,101)) "added" ]

test/fixtures/javascript/anonymous-function.diffA-B.txt

@@ -4,18 +4,21 @@
     (Empty)
     (Empty)
   {-(RequiredParameter
+    {-(Empty)-}
     {-(Empty)-}
     {-(Empty)-}
     {-(Assignment
       {-(Identifier)-}
       {-(Empty)-})-})-}
     (RequiredParameter
+      (Empty)
       (Empty)
       (Empty)
       (Assignment
         (Identifier)
         (Empty)))
   {+(RequiredParameter
+    {+(Empty)+}
     {+(Empty)+}
     {+(Empty)+}
     {+(Assignment

test/fixtures/javascript/anonymous-function.diffB-A.txt

@@ -4,6 +4,7 @@
     (Empty)
     (Empty)
     (RequiredParameter
+      (Empty)
       (Empty)
       (Empty)
       (Assignment
@@ -11,6 +12,7 @@
       ->(Identifier) }
         (Empty)))
     (RequiredParameter
+      (Empty)
       (Empty)
       (Empty)
       (Assignment

test/fixtures/javascript/anonymous-function.parseA.txt

@@ -4,12 +4,14 @@
     (Empty)
     (Empty)
     (RequiredParameter
+      (Empty)
       (Empty)
       (Empty)
       (Assignment
         (Identifier)
         (Empty)))
     (RequiredParameter
+      (Empty)
       (Empty)
       (Empty)
       (Assignment

test/fixtures/javascript/anonymous-function.parseB.txt

@@ -4,12 +4,14 @@
     (Empty)
     (Empty)
     (RequiredParameter
+      (Empty)
       (Empty)
       (Empty)
       (Assignment
         (Identifier)
         (Empty)))
     (RequiredParameter
+      (Empty)
       (Empty)
       (Empty)
       (Assignment

test/fixtures/javascript/arrow-function.diffA-B.txt

@@ -4,12 +4,14 @@
     (Empty)
     (Empty)
     (RequiredParameter
+      (Empty)
       (Empty)
       (Empty)
       (Assignment
         (Identifier)
         (Empty)))
     (RequiredParameter
+      (Empty)
       (Empty)
       (Empty)
       (Assignment

test/fixtures/javascript/arrow-function.diffB-A.txt

@@ -4,12 +4,14 @@
     (Empty)
     (Empty)
     (RequiredParameter
+      (Empty)
       (Empty)
       (Empty)
       (Assignment
         (Identifier)
         (Empty)))
     (RequiredParameter
+      (Empty)
       (Empty)
       (Empty)
       (Assignment

test/fixtures/javascript/arrow-function.parseA.txt

@@ -4,12 +4,14 @@
     (Empty)
     (Empty)
     (RequiredParameter
+      (Empty)
       (Empty)
       (Empty)
       (Assignment
         (Identifier)
         (Empty)))
     (RequiredParameter
+      (Empty)
       (Empty)
       (Empty)
       (Assignment

test/fixtures/javascript/arrow-function.parseB.txt

@@ -4,12 +4,14 @@
     (Empty)
     (Empty)
     (RequiredParameter
+      (Empty)
       (Empty)
       (Empty)
       (Assignment
         (Identifier)
         (Empty)))
     (RequiredParameter
+      (Empty)
       (Empty)
       (Empty)
       (Assignment

test/fixtures/javascript/chained-callbacks.diffA-B.txt

@@ -9,6 +9,7 @@
       (Empty)
       (Empty)
       (RequiredParameter
+        (Empty)
         (Empty)
         (Empty)
         (Assignment

test/fixtures/javascript/chained-callbacks.diffB-A.txt

@@ -9,6 +9,7 @@
       (Empty)
       (Empty)
       (RequiredParameter
+        (Empty)
         (Empty)
         (Empty)
         (Assignment

test/fixtures/javascript/chained-callbacks.parseA.txt

@@ -8,6 +8,7 @@
       (Empty)
       (Empty)
       (RequiredParameter
+        (Empty)
         (Empty)
         (Empty)
         (Assignment

test/fixtures/javascript/chained-callbacks.parseB.txt

@@ -8,6 +8,7 @@
       (Empty)
       (Empty)
       (RequiredParameter
+        (Empty)
         (Empty)
         (Empty)
         (Assignment

test/fixtures/javascript/class.diffA-B.txt

@@ -9,6 +9,7 @@
     {+(Empty)+}
     {+(Identifier)+}
     {+(RequiredParameter
+      {+(Empty)+}
       {+(Empty)+}
       {+(Empty)+}
       {+(Assignment
@@ -25,6 +26,7 @@
     {+(Empty)+}
     {+(Identifier)+}
     {+(RequiredParameter
+      {+(Empty)+}
       {+(Empty)+}
       {+(Empty)+}
       {+(Assignment
@@ -41,6 +43,7 @@
     {+(Empty)+}
     {+(Identifier)+}
     {+(RequiredParameter
+      {+(Empty)+}
       {+(Empty)+}
       {+(Empty)+}
       {+(Assignment
@@ -63,6 +66,7 @@
     {-(Empty)-}
     {-(Identifier)-}
     {-(RequiredParameter
+      {-(Empty)-}
       {-(Empty)-}
       {-(Empty)-}
       {-(Assignment
@@ -79,6 +83,7 @@
     {-(Empty)-}
     {-(Identifier)-}
     {-(RequiredParameter
+      {-(Empty)-}
       {-(Empty)-}
       {-(Empty)-}
       {-(Assignment
@@ -95,6 +100,7 @@
     {-(Empty)-}
     {-(Identifier)-}
     {-(RequiredParameter
+      {-(Empty)-}
       {-(Empty)-}
       {-(Empty)-}
       {-(Assignment

test/fixtures/javascript/class.diffB-A.txt

@@ -16,6 +16,7 @@
     { (Identifier)
     ->(Identifier) }
       (RequiredParameter
+        (Empty)
         (Empty)
         (Empty)
         (Assignment
@@ -33,6 +34,7 @@
     { (Identifier)
     ->(Identifier) }
       (RequiredParameter
+        (Empty)
         (Empty)
         (Empty)
         (Assignment
@@ -50,6 +52,7 @@
     { (Identifier)
     ->(Identifier) }
       (RequiredParameter
+        (Empty)
         (Empty)
         (Empty)
         (Assignment

test/fixtures/javascript/class.parseA.txt

@@ -15,6 +15,7 @@
       (Empty)
       (Identifier)
       (RequiredParameter
+        (Empty)
         (Empty)
         (Empty)
         (Assignment
@@ -31,6 +32,7 @@
       (Empty)
       (Identifier)
       (RequiredParameter
+        (Empty)
         (Empty)
         (Empty)
         (Assignment
@@ -47,6 +49,7 @@
       (Empty)
       (Identifier)
       (RequiredParameter
+        (Empty)
         (Empty)
         (Empty)
         (Assignment

test/fixtures/javascript/class.parseB.txt

@@ -9,6 +9,7 @@
       (Empty)
       (Identifier)
       (RequiredParameter
+        (Empty)
         (Empty)
         (Empty)
         (Assignment
@@ -25,6 +26,7 @@
       (Empty)
       (Identifier)
       (RequiredParameter
+        (Empty)
         (Empty)
         (Empty)
         (Assignment
@@ -41,6 +43,7 @@
       (Empty)
       (Identifier)
       (RequiredParameter
+        (Empty)
         (Empty)
         (Empty)
         (Assignment

test/fixtures/javascript/function-call-args.diffA-B.txt

@@ -9,18 +9,21 @@
       (Empty)
       (Empty)
     {-(RequiredParameter
+      {-(Empty)-}
       {-(Empty)-}
       {-(Empty)-}
       {-(Assignment
         {-(Identifier)-}
         {-(Empty)-})-})-}
       (RequiredParameter
+        (Empty)
         (Empty)
         (Empty)
         (Assignment
           (Identifier)
           (Empty)))
     {+(RequiredParameter
+      {+(Empty)+}
       {+(Empty)+}
       {+(Empty)+}
       {+(Assignment

test/fixtures/javascript/function-call-args.diffB-A.txt

@@ -9,6 +9,7 @@
       (Empty)
       (Empty)
       (RequiredParameter
+        (Empty)
         (Empty)
         (Empty)
         (Assignment
@@ -16,6 +17,7 @@
         ->(Identifier) }
           (Empty)))
       (RequiredParameter
+        (Empty)
         (Empty)
         (Empty)
         (Assignment

test/fixtures/javascript/function-call-args.parseA.txt

@@ -8,12 +8,14 @@
       (Empty)
       (Empty)
       (RequiredParameter
+        (Empty)
         (Empty)
         (Empty)
         (Assignment
           (Identifier)
           (Empty)))
       (RequiredParameter
+        (Empty)
         (Empty)
         (Empty)
         (Assignment

test/fixtures/javascript/function-call-args.parseB.txt

@@ -8,12 +8,14 @@
       (Empty)
       (Empty)
       (RequiredParameter
+        (Empty)
         (Empty)
         (Empty)
         (Assignment
           (Identifier)
           (Empty)))
       (RequiredParameter
+        (Empty)
         (Empty)
         (Empty)
         (Assignment

test/fixtures/javascript/function.diffA-B.txt

@@ -4,12 +4,14 @@
     (Empty)
     (Empty)
     (RequiredParameter
+      (Empty)
       (Empty)
       (Empty)
       (Assignment
         (Identifier)
         (Empty)))
     (RequiredParameter
+      (Empty)
       (Empty)
       (Empty)
       (Assignment

test/fixtures/javascript/function.diffB-A.txt

@@ -4,12 +4,14 @@
     (Empty)
     (Empty)
     (RequiredParameter
+      (Empty)
       (Empty)
       (Empty)
       (Assignment
         (Identifier)
         (Empty)))
     (RequiredParameter
+      (Empty)
       (Empty)
       (Empty)
       (Assignment

test/fixtures/javascript/function.parseA.txt

@@ -4,12 +4,14 @@
     (Empty)
     (Empty)
     (RequiredParameter
+      (Empty)
       (Empty)
       (Empty)
       (Assignment
         (Identifier)
         (Empty)))
     (RequiredParameter
+      (Empty)
       (Empty)
       (Empty)
       (Assignment

test/fixtures/javascript/function.parseB.txt

@@ -4,12 +4,14 @@
     (Empty)
     (Empty)
     (RequiredParameter
+      (Empty)
       (Empty)
       (Empty)
       (Assignment
         (Identifier)
         (Empty)))
     (RequiredParameter
+      (Empty)
       (Empty)
       (Empty)
       (Assignment

test/fixtures/javascript/generator-function.diffA-B.txt

@@ -5,12 +5,14 @@
   { (Identifier)
   ->(Identifier) }
     (RequiredParameter
+      (Empty)
       (Empty)
       (Empty)
       (Assignment
         (Identifier)
         (Empty)))
     (RequiredParameter
+      (Empty)
       (Empty)
       (Empty)
       (Assignment

test/fixtures/javascript/generator-function.diffB-A.txt

@@ -5,12 +5,14 @@
   { (Identifier)
   ->(Identifier) }
     (RequiredParameter
+      (Empty)
       (Empty)
       (Empty)
       (Assignment
         (Identifier)
         (Empty)))
     (RequiredParameter
+      (Empty)
       (Empty)
       (Empty)
       (Assignment

test/fixtures/javascript/generator-function.parseA.txt

@@ -4,12 +4,14 @@
     (Empty)
     (Identifier)
     (RequiredParameter
+      (Empty)
       (Empty)
       (Empty)
       (Assignment
         (Identifier)
         (Empty)))
     (RequiredParameter
+      (Empty)
       (Empty)
       (Empty)
       (Assignment

test/fixtures/javascript/generator-function.parseB.txt

@@ -4,12 +4,14 @@
     (Empty)
     (Identifier)
     (RequiredParameter
+      (Empty)
       (Empty)
       (Empty)
       (Assignment
         (Identifier)
         (Empty)))
     (RequiredParameter
+      (Empty)
       (Empty)
       (Empty)
       (Assignment

test/fixtures/javascript/named-function.diffA-B.txt

@@ -5,12 +5,14 @@
   { (Identifier)
   ->(Identifier) }
   {-(RequiredParameter
+    {-(Empty)-}
     {-(Empty)-}
     {-(Empty)-}
     {-(Assignment
       {-(Identifier)-}
       {-(Empty)-})-})-}
   {-(RequiredParameter
+    {-(Empty)-}
     {-(Empty)-}
     {-(Empty)-}
     {-(Assignment

test/fixtures/javascript/named-function.diffB-A.txt

@@ -5,12 +5,14 @@
   { (Identifier)
   ->(Identifier) }
   {+(RequiredParameter
+    {+(Empty)+}
     {+(Empty)+}
     {+(Empty)+}
     {+(Assignment
       {+(Identifier)+}
       {+(Empty)+})+})+}
   {+(RequiredParameter
+    {+(Empty)+}
     {+(Empty)+}
     {+(Empty)+}
     {+(Assignment

test/fixtures/javascript/named-function.parseA.txt

@@ -4,12 +4,14 @@
     (Empty)
     (Identifier)
     (RequiredParameter
+      (Empty)
       (Empty)
       (Empty)
       (Assignment
         (Identifier)
         (Empty)))
     (RequiredParameter
+      (Empty)
       (Empty)
       (Empty)
       (Assignment

test/fixtures/javascript/nested-do-while-in-function.diffA-B.txt

@@ -4,12 +4,14 @@
     (Empty)
     (Identifier)
     (RequiredParameter
+      (Empty)
       (Empty)
       (Empty)
       (Assignment
         (Identifier)
         (Empty)))
     (RequiredParameter
+      (Empty)
       (Empty)
       (Empty)
       (Assignment

test/fixtures/javascript/nested-do-while-in-function.diffB-A.txt

@@ -4,12 +4,14 @@
     (Empty)
     (Identifier)
     (RequiredParameter
+      (Empty)
       (Empty)
       (Empty)
       (Assignment
         (Identifier)
         (Empty)))
     (RequiredParameter
+      (Empty)
       (Empty)
       (Empty)
       (Assignment

test/fixtures/javascript/nested-do-while-in-function.parseA.txt

@@ -4,12 +4,14 @@
     (Empty)
     (Identifier)
     (RequiredParameter
+      (Empty)
       (Empty)
       (Empty)
       (Assignment
         (Identifier)
         (Empty)))
     (RequiredParameter
+      (Empty)
       (Empty)
       (Empty)
       (Assignment

test/fixtures/javascript/nested-do-while-in-function.parseB.txt

@@ -4,12 +4,14 @@
     (Empty)
     (Identifier)
     (RequiredParameter
+      (Empty)
       (Empty)
       (Empty)
       (Assignment
         (Identifier)
         (Empty)))
     (RequiredParameter
+      (Empty)
       (Empty)
       (Empty)
       (Assignment

test/fixtures/javascript/nested-functions.diffA-B.txt

@@ -4,12 +4,14 @@
     (Empty)
     (Identifier)
     (RequiredParameter
+      (Empty)
       (Empty)
       (Empty)
       (Assignment
         (Identifier)
         (Empty)))
     (RequiredParameter
+      (Empty)
       (Empty)
       (Empty)
       (Assignment
@@ -21,12 +23,14 @@
         (Empty)
         (Identifier)
         (RequiredParameter
+          (Empty)
           (Empty)
           (Empty)
           (Assignment
             (Identifier)
             (Empty)))
         (RequiredParameter
+          (Empty)
           (Empty)
           (Empty)
           (Assignment

test/fixtures/javascript/nested-functions.diffB-A.txt

@@ -4,12 +4,14 @@
     (Empty)
     (Identifier)
     (RequiredParameter
+      (Empty)
       (Empty)
       (Empty)
       (Assignment
         (Identifier)
         (Empty)))
     (RequiredParameter
+      (Empty)
       (Empty)
       (Empty)
       (Assignment
@@ -21,12 +23,14 @@
         (Empty)
         (Identifier)
         (RequiredParameter
+          (Empty)
           (Empty)
           (Empty)
           (Assignment
             (Identifier)
             (Empty)))
         (RequiredParameter
+          (Empty)
           (Empty)
           (Empty)
           (Assignment

test/fixtures/javascript/nested-functions.parseA.txt

@@ -4,12 +4,14 @@
     (Empty)
     (Identifier)
     (RequiredParameter
+      (Empty)
       (Empty)
       (Empty)
       (Assignment
         (Identifier)
         (Empty)))
     (RequiredParameter
+      (Empty)
       (Empty)
       (Empty)
       (Assignment
@@ -21,12 +23,14 @@
         (Empty)
         (Identifier)
         (RequiredParameter
+          (Empty)
           (Empty)
           (Empty)
           (Assignment
             (Identifier)
             (Empty)))
         (RequiredParameter
+          (Empty)
           (Empty)
           (Empty)
           (Assignment

test/fixtures/javascript/nested-functions.parseB.txt

@@ -4,12 +4,14 @@
     (Empty)
     (Identifier)
     (RequiredParameter
+      (Empty)
       (Empty)
       (Empty)
       (Assignment
         (Identifier)
         (Empty)))
     (RequiredParameter
+      (Empty)
       (Empty)
       (Empty)
       (Assignment
@@ -21,12 +23,14 @@
         (Empty)
         (Identifier)
         (RequiredParameter
+          (Empty)
           (Empty)
           (Empty)
           (Assignment
             (Identifier)
             (Empty)))
         (RequiredParameter
+          (Empty)
           (Empty)
           (Empty)
           (Assignment

test/fixtures/javascript/objects-with-methods.diffA-B.txt

@@ -9,12 +9,14 @@
     { (Identifier)
     ->(Identifier) }
       (RequiredParameter
+        (Empty)
         (Empty)
         (Empty)
         (Assignment
           (Identifier)
           (Empty)))
       (RequiredParameter
+        (Empty)
         (Empty)
         (Empty)
         (Assignment

test/fixtures/javascript/objects-with-methods.diffB-A.txt

@@ -9,12 +9,14 @@
     { (Identifier)
     ->(Identifier) }
       (RequiredParameter
+        (Empty)
         (Empty)
         (Empty)
         (Assignment
           (Identifier)
           (Empty)))
       (RequiredParameter
+        (Empty)
         (Empty)
         (Empty)
         (Assignment

test/fixtures/javascript/objects-with-methods.parseA.txt

@@ -8,12 +8,14 @@
       (Empty)
       (Identifier)
       (RequiredParameter
+        (Empty)
         (Empty)
         (Empty)
         (Assignment
           (Identifier)
           (Empty)))
       (RequiredParameter
+        (Empty)
         (Empty)
         (Empty)
         (Assignment

test/fixtures/javascript/objects-with-methods.parseB.txt

@@ -8,12 +8,14 @@
       (Empty)
       (Identifier)
       (RequiredParameter
+        (Empty)
         (Empty)
         (Empty)
         (Assignment
           (Identifier)
           (Empty)))
       (RequiredParameter
+        (Empty)
         (Empty)
         (Empty)
         (Assignment

test/fixtures/javascript/yield.parseA.txt

@@ -1,13 +1 @@
-(Program
-  (Function
-    (Empty)
-    (Empty)
-    (Identifier)
-    (
-      (VariableDeclaration
-        (Assignment
-          (Empty)
-          (Identifier)
-          (Float)))
-      (Yield
-        (Identifier)))))
+(Program(Function(Empty)(Empty)(Identifier)((VariableDeclaration(Assignment(Empty)(Identifier)(Float)))(Yield(Identifier)))))

test/fixtures/profile/javascript/jquery-large-after.js

@@ -1,875 +0,0 @@
-var jQuery = (function() {
-
-// Define a local copy of jQuery
-var jQuery = function( selector, context ) {
-		// The jQuery object is actually just the init constructor 'enhanced'
-		return new jQuery.fn.init( selector, context );
-	},
-
-	// Map over jQuery in case of overwrite
-	_jQuery = window.jQuery,
-
-	// Map over the $ in case of overwrite
-	_$ = window.$,
-
-	// A central reference to the root jQuery(document)
-	rootjQuery,
-
-	// A simple way to check for HTML strings or ID strings
-	// (both of which we optimize for)
-	quickExpr = /^(?:[^<]*(<[\w\W]+>)[^>]*$|#([\w\-]+)$)/,
-
-	// Is it a simple selector
-	isSimple = /^.[^:#\[\.,]*$/,
-
-	// Check if a string has a non-whitespace character in it
-	rnotwhite = /\S/,
-	rwhite = /\s/,
-
-	// Used for trimming whitespace
-	trimLeft = /^\s+/,
-	trimRight = /\s+$/,
-
-	// Check for non-word characters
-	rnonword = /\W/,
-
-	// Match a standalone tag
-	rsingleTag = /^<(\w+)\s*\/?>(?:<\/\1>)?$/,
-
-	// JSON RegExp
-	rvalidchars = /^[\],:{}\s]*$/,
-	rvalidescape = /\\(?:["\\\/bfnrt]|u[0-9a-fA-F]{4})/g,
-	rvalidtokens = /"[^"\\\n\r]*"|true|false|null|-?\d+(?:\.\d*)?(?:[eE][+\-]?\d+)?/g,
-	rvalidbraces = /(?:^|:|,)(?:\s*\[)+/g,
-
-	// Useragent RegExp
-	rwebkit = /(webkit)[ \/]([\w.]+)/,
-	ropera = /(opera)(?:.*version)?[ \/]([\w.]+)/,
-	rmsie = /(msie) ([\w.]+)/,
-	rmozilla = /(mozilla)(?:.*? rv:([\w.]+))?/,
-
-	// Keep a UserAgent string for use with jQuery.browser
-	userAgent = navigator.userAgent,
-
-	// For matching the engine and version of the browser
-	browserMatch,
-
-	// Has the ready events already been bound?
-	readyBound = false,
-
-	// The functions to execute on DOM ready
-	readyList = [],
-
-	// The ready event handler
-	DOMContentLoaded,
-
-	// Save a reference to some core methods
-	toString = Object.prototype.toString,
-	hasOwn = Object.prototype.hasOwnProperty,
-	push = Array.prototype.push,
-	slice = Array.prototype.slice,
-	trim = String.prototype.trim,
-	indexOf = Array.prototype.indexOf,
-
-	// [[Class]] -> type pairs
-	class2type = {};
-
-jQuery.fn = jQuery.prototype = {
-	init: function( selector, context ) {
-		var match, elem, ret, doc;
-
-		// Handle $(""), $(null), or $(undefined)
-		if ( !selector ) {
-			return this;
-		}
-
-		// Handle $(DOMElement)
-		if ( selector.nodeType ) {
-			this.context = this[0] = selector;
-			this.length = 1;
-			return this;
-		}
-
-		// The body element only exists once, optimize finding it
-		if ( selector === "body" && !context ) {
-			this.context = document;
-			this[0] = document.body;
-			this.selector = "body";
-			this.length = 1;
-			return this;
-		}
-
-		// Handle HTML strings
-		if ( typeof selector === "string" ) {
-			// Are we dealing with HTML string or an ID?
-			match = quickExpr.exec( selector );
-
-			// Verify a match, and that no context was specified for #id
-			if ( match && (match[1] || !context) ) {
-
-				// HANDLE: $(html) -> $(array)
-				if ( match[1] ) {
-					doc = (context ? context.ownerDocument || context : document);
-
-					// If a single string is passed in and it's a single tag
-					// just do a createElement and skip the rest
-					ret = rsingleTag.exec( selector );
-
-					if ( ret ) {
-						if ( jQuery.isPlainObject( context ) ) {
-							selector = [ document.createElement( ret[1] ) ];
-							jQuery.fn.attr.call( selector, context, true );
-
-						} else {
-							selector = [ doc.createElement( ret[1] ) ];
-						}
-
-					} else {
-						ret = jQuery.buildFragment( [ match[1] ], [ doc ] );
-						selector = (ret.cacheable ? ret.fragment.cloneNode(true) : ret.fragment).childNodes;
-					}
-
-					return jQuery.merge( this, selector );
-
-				// HANDLE: $("#id")
-				} else {
-					elem = document.getElementById( match[2] );
-
-					// Check parentNode to catch when Blackberry 4.6 returns
-					// nodes that are no longer in the document #6963
-					if ( elem && elem.parentNode ) {
-						// Handle the case where IE and Opera return items
-						// by name instead of ID
-						if ( elem.id !== match[2] ) {
-							return rootjQuery.find( selector );
-						}
-
-						// Otherwise, we inject the element directly into the jQuery object
-						this.length = 1;
-						this[0] = elem;
-					}
-
-					this.context = document;
-					this.selector = selector;
-					return this;
-				}
-
-			// HANDLE: $("TAG")
-			} else if ( !context && !rnonword.test( selector ) ) {
-				this.selector = selector;
-				this.context = document;
-				selector = document.getElementsByTagName( selector );
-				return jQuery.merge( this, selector );
-
-			// HANDLE: $(expr, $(...))
-			} else if ( !context || context.jquery ) {
-				return (context || rootjQuery).find( selector );
-
-			// HANDLE: $(expr, context)
-			// (which is just equivalent to: $(context).find(expr)
-			} else {
-				return jQuery( context ).find( selector );
-			}
-
-		// HANDLE: $(function)
-		// Shortcut for document ready
-		} else if ( jQuery.isFunction( selector ) ) {
-			return rootjQuery.ready( selector );
-		}
-
-		if (selector.selector !== undefined) {
-			this.selector = selector.selector;
-			this.context = selector.context;
-		}
-
-		return jQuery.makeArray( selector, this );
-	},
-
-	// Start with an empty selector
-	selector: "",
-
-	// The current version of jQuery being used
-	jquery: "@VERSION",
-
-	// The default length of a jQuery object is 0
-	length: 0,
-
-	// The number of elements contained in the matched element set
-	size: function() {
-		return this.length;
-	},
-
-	toArray: function() {
-		return slice.call( this, 0 );
-	},
-
-	// Get the Nth element in the matched element set OR
-	// Get the whole matched element set as a clean array
-	get: function( num ) {
-		return num == null ?
-
-			// Return a 'clean' array
-			this.toArray() :
-
-			// Return just the object
-			( num < 0 ? this.slice(num)[ 0 ] : this[ num ] );
-	},
-
-	// Take an array of elements and push it onto the stack
-	// (returning the new matched element set)
-	pushStack: function( elems, name, selector ) {
-		// Build a new jQuery matched element set
-		var ret = jQuery();
-
-		if ( jQuery.isArray( elems ) ) {
-			push.apply( ret, elems );
-
-		} else {
-			jQuery.merge( ret, elems );
-		}
-
-		// Add the old object onto the stack (as a reference)
-		ret.prevObject = this;
-
-		ret.context = this.context;
-
-		if ( name === "find" ) {
-			ret.selector = this.selector + (this.selector ? " " : "") + selector;
-		} else if ( name ) {
-			ret.selector = this.selector + "." + name + "(" + selector + ")";
-		}
-
-		// Return the newly-formed element set
-		return ret;
-	},
-
-	// Execute a callback for every element in the matched set.
-	// (You can seed the arguments with an array of args, but this is
-	// only used internally.)
-	each: function( callback, args ) {
-		return jQuery.each( this, callback, args );
-	},
-
-	ready: function( fn ) {
-		// Attach the listeners
-		jQuery.bindReady();
-
-		// If the DOM is already ready
-		if ( jQuery.isReady ) {
-			// Execute the function immediately
-			fn.call( document, jQuery );
-
-		// Otherwise, remember the function for later
-		} else if ( readyList ) {
-			// Add the function to the wait list
-			readyList.push( fn );
-		}
-
-		return this;
-	},
-
-	eq: function( i ) {
-		return i === -1 ?
-			this.slice( i ) :
-			this.slice( i, +i + 1 );
-	},
-
-	first: function() {
-		return this.eq( 0 );
-	},
-
-	last: function() {
-		return this.eq( -1 );
-	},
-
-	slice: function() {
-		return this.pushStack( slice.apply( this, arguments ),
-			"slice", slice.call(arguments).join(",") );
-	},
-
-	map: function( callback ) {
-		return this.pushStack( jQuery.map(this, function( elem, i ) {
-			return callback.call( elem, i, elem );
-		}));
-	},
-
-	end: function() {
-		return this.prevObject || jQuery(null);
-	},
-
-	// For internal use only.
-	// Behaves like an Array's method, not like a jQuery method.
-	push: push,
-	sort: [].sort,
-	splice: [].splice
-};
-
-// Give the init function the jQuery prototype for later instantiation
-jQuery.fn.init.prototype = jQuery.fn;
-
-jQuery.extend = jQuery.fn.extend = function() {
-	// copy reference to target object
-	var target = arguments[0] || {}, i = 1, length = arguments.length, deep = false, options, name, src, copy, copyIsArray;
-
-	// Handle a deep copy situation
-	if ( typeof target === "boolean" ) {
-		deep = target;
-		target = arguments[1] || {};
-		// skip the boolean and the target
-		i = 2;
-	}
-
-	// Handle case when target is a string or something (possible in deep copy)
-	if ( typeof target !== "object" && !jQuery.isFunction(target) ) {
-		target = {};
-	}
-
-	// extend jQuery itself if only one argument is passed
-	if ( length === i ) {
-		target = this;
-		--i;
-	}
-
-	for ( ; i < length; i++ ) {
-		// Only deal with non-null/undefined values
-		if ( (options = arguments[ i ]) != null ) {
-			// Extend the base object
-			for ( name in options ) {
-				src = target[ name ];
-				copy = options[ name ];
-
-				// Prevent never-ending loop
-				if ( target === copy ) {
-					continue;
-				}
-
-				// Recurse if we're merging plain objects or arrays
-				if ( deep && copy && ( jQuery.isPlainObject(copy) || (copyIsArray = jQuery.isArray(copy)) ) ) {
-					if ( copyIsArray ) {
-						copyIsArray = false;
-						clone = src && jQuery.isArray(src) ? src : [];
-					} else {
-						clone = src && jQuery.isPlainObject(src) ? src : {};
-					}
-
-					// Never move original objects, clone them
-					target[ name ] = jQuery.extend( deep, clone, copy );
-
-				// Don't bring in undefined values
-				} else if ( copy !== undefined ) {
-					target[ name ] = copy;
-				}
-			}
-		}
-	}
-
-	// Return the modified object
-	return target;
-};
-
-jQuery.extend({
-	noConflict: function( deep ) {
-		window.$ = _$;
-
-		if ( deep ) {
-			window.jQuery = _jQuery;
-		}
-
-		return jQuery;
-	},
-
-	// Is the DOM ready to be used? Set to true once it occurs.
-	isReady: false,
-
-	// A counter to track how many items to wait for before
-	// the ready event fires. See #6781
-	readyWait: 1,
-
-	// Handle when the DOM is ready
-	ready: function( wait ) {
-		// A third-party is pushing the ready event forwards
-		if ( wait === true ) {
-			jQuery.readyWait--;
-		}
-
-		// Make sure that the DOM is not already loaded
-		if ( !jQuery.readyWait || (wait !== true && !jQuery.isReady) ) {
-			// Make sure body exists, at least, in case IE gets a little overzealous (ticket #5443).
-			if ( !document.body ) {
-				return setTimeout( jQuery.ready, 13 );
-			}
-
-			// Remember that the DOM is ready
-			jQuery.isReady = true;
-
-			// If a normal DOM Ready event fired, decrement, and wait if need be
-			if ( wait !== true && --jQuery.readyWait > 0 ) {
-				return;
-			}
-
-			// If there are functions bound, to execute
-			if ( readyList ) {
-				// Execute all of them
-				var fn, i = 0;
-				while ( (fn = readyList[ i++ ]) ) {
-					fn.call( document, jQuery );
-				}
-
-				// Reset the list of functions
-				readyList = null;
-			}
-
-			// Trigger any bound ready events
-			if ( jQuery.fn.triggerHandler ) {
-				jQuery( document ).triggerHandler( "ready" );
-			}
-		}
-	},
-
-	bindReady: function() {
-		if ( readyBound ) {
-			return;
-		}
-
-		readyBound = true;
-
-		// Catch cases where $(document).ready() is called after the
-		// browser event has already occurred.
-		if ( document.readyState === "complete" ) {
-			return jQuery.ready();
-		}
-
-		// Mozilla, Opera and webkit nightlies currently support this event
-		if ( document.addEventListener ) {
-			// Use the handy event callback
-			document.addEventListener( "DOMContentLoaded", DOMContentLoaded, false );
-
-			// A fallback to window.onload, that will always work
-			window.addEventListener( "load", jQuery.ready, false );
-
-		// If IE event model is used
-		} else if ( document.attachEvent ) {
-			// ensure firing before onload,
-			// maybe late but safe also for iframes
-			document.attachEvent("onreadystatechange", DOMContentLoaded);
-
-			// A fallback to window.onload, that will always work
-			window.attachEvent( "onload", jQuery.ready );
-
-			// If IE and not a frame
-			// continually check to see if the document is ready
-			var toplevel = false;
-
-			try {
-				toplevel = window.frameElement == null;
-			} catch(e) {}
-
-			if ( document.documentElement.doScroll && toplevel ) {
-				doScrollCheck();
-			}
-		}
-	},
-
-	// See test/unit/core.js for details concerning isFunction.
-	// Since version 1.3, DOM methods and functions like alert
-	// aren't supported. They return false on IE (#2968).
-	isFunction: function( obj ) {
-		return jQuery.type(obj) === "function";
-	},
-
-	isArray: Array.isArray || function( obj ) {
-		return jQuery.type(obj) === "array";
-	},
-
-	// A crude way of determining if an object is a window
-	isWindow: function( obj ) {
-		return obj && typeof obj === "object" && "setInterval" in obj;
-	},
-
-	type: function( obj ) {
-		return obj == null ?
-			String( obj ) :
-			class2type[ toString.call(obj) ] || "object";
-	},
-
-	isPlainObject: function( obj ) {
-		// Must be an Object.
-		// Because of IE, we also have to check the presence of the constructor property.
-		// Make sure that DOM nodes and window objects don't pass through, as well
-		if ( !obj || jQuery.type(obj) !== "object" || obj.nodeType || jQuery.isWindow( obj ) ) {
-			return false;
-		}
-
-		// Not own constructor property must be Object
-		if ( obj.constructor &&
-			!hasOwn.call(obj, "constructor") &&
-			!hasOwn.call(obj.constructor.prototype, "isPrototypeOf") ) {
-			return false;
-		}
-
-		// Own properties are enumerated firstly, so to speed up,
-		// if last one is own, then all properties are own.
-
-		var key;
-		for ( key in obj ) {}
-
-		return key === undefined || hasOwn.call( obj, key );
-	},
-
-	isEmptyObject: function( obj ) {
-		for ( var name in obj ) {
-			return false;
-		}
-		return true;
-	},
-
-	error: function( msg ) {
-		throw msg;
-	},
-
-	parseJSON: function( data ) {
-		if ( typeof data !== "string" || !data ) {
-			return null;
-		}
-
-		// Make sure leading/trailing whitespace is removed (IE can't handle it)
-		data = jQuery.trim( data );
-
-		// Make sure the incoming data is actual JSON
-		// Logic borrowed from http://json.org/json2.js
-		if ( rvalidchars.test(data.replace(rvalidescape, "@")
-			.replace(rvalidtokens, "]")
-			.replace(rvalidbraces, "")) ) {
-
-			// Try to use the native JSON parser first
-			return window.JSON && window.JSON.parse ?
-				window.JSON.parse( data ) :
-				(new Function("return " + data))();
-
-		} else {
-			jQuery.error( "Invalid JSON: " + data );
-		}
-	},
-
-	noop: function() {},
-
-	// Evalulates a script in a global context
-	globalEval: function( data ) {
-		if ( data && rnotwhite.test(data) ) {
-			// Inspired by code by Andrea Giammarchi
-			// http://webreflection.blogspot.com/2007/08/global-scope-evaluation-and-dom.html
-			var head = document.getElementsByTagName("head")[0] || document.documentElement,
-				script = document.createElement("script");
-
-			script.type = "text/javascript";
-
-			if ( jQuery.support.scriptEval ) {
-				script.appendChild( document.createTextNode( data ) );
-			} else {
-				script.text = data;
-			}
-
-			// Use insertBefore instead of appendChild to circumvent an IE6 bug.
-			// This arises when a base node is used (#2709).
-			head.insertBefore( script, head.firstChild );
-			head.removeChild( script );
-		}
-	},
-
-	nodeName: function( elem, name ) {
-		return elem.nodeName && elem.nodeName.toUpperCase() === name.toUpperCase();
-	},
-
-	// args is for internal usage only
-	each: function( object, callback, args ) {
-		var name, i = 0,
-			length = object.length,
-			isObj = length === undefined || jQuery.isFunction(object);
-
-		if ( args ) {
-			if ( isObj ) {
-				for ( name in object ) {
-					if ( callback.apply( object[ name ], args ) === false ) {
-						break;
-					}
-				}
-			} else {
-				for ( ; i < length; ) {
-					if ( callback.apply( object[ i++ ], args ) === false ) {
-						break;
-					}
-				}
-			}
-
-		// A special, fast, case for the most common use of each
-		} else {
-			if ( isObj ) {
-				for ( name in object ) {
-					if ( callback.call( object[ name ], name, object[ name ] ) === false ) {
-						break;
-					}
-				}
-			} else {
-				for ( var value = object[0];
-					i < length && callback.call( value, i, value ) !== false; value = object[++i] ) {}
-			}
-		}
-
-		return object;
-	},
-
-	// Use native String.trim function wherever possible
-	trim: trim ?
-		function( text ) {
-			return text == null ?
-				"" :
-				trim.call( text );
-		} :
-
-		// Otherwise use our own trimming functionality
-		function( text ) {
-			return text == null ?
-				"" :
-				text.toString().replace( trimLeft, "" ).replace( trimRight, "" );
-		},
-
-	// results is for internal usage only
-	makeArray: function( array, results ) {
-		var ret = results || [];
-
-		if ( array != null ) {
-			// The window, strings (and functions) also have 'length'
-			// The extra typeof function check is to prevent crashes
-			// in Safari 2 (See: #3039)
-			// Tweaked logic slightly to handle Blackberry 4.7 RegExp issues #6930
-			var type = jQuery.type(array);
-
-			if ( array.length == null || type === "string" || type === "function" || type === "regexp" || jQuery.isWindow( array ) ) {
-				push.call( ret, array );
-			} else {
-				jQuery.merge( ret, array );
-			}
-		}
-
-		return ret;
-	},
-
-	inArray: function( elem, array ) {
-		if ( array.indexOf ) {
-			return array.indexOf( elem );
-		}
-
-		for ( var i = 0, length = array.length; i < length; i++ ) {
-			if ( array[ i ] === elem ) {
-				return i;
-			}
-		}
-
-		return -1;
-	},
-
-	merge: function( first, second ) {
-		var i = first.length, j = 0;
-
-		if ( typeof second.length === "number" ) {
-			for ( var l = second.length; j < l; j++ ) {
-				first[ i++ ] = second[ j ];
-			}
-
-		} else {
-			while ( second[j] !== undefined ) {
-				first[ i++ ] = second[ j++ ];
-			}
-		}
-
-		first.length = i;
-
-		return first;
-	},
-
-	grep: function( elems, callback, inv ) {
-		var ret = [], retVal;
-		inv = !!inv;
-
-		// Go through the array, only saving the items
-		// that pass the validator function
-		for ( var i = 0, length = elems.length; i < length; i++ ) {
-			retVal = !!callback( elems[ i ], i );
-			if ( inv !== retVal ) {
-				ret.push( elems[ i ] );
-			}
-		}
-
-		return ret;
-	},
-
-	// arg is for internal usage only
-	map: function( elems, callback, arg ) {
-		var ret = [], value;
-
-		// Go through the array, translating each of the items to their
-		// new value (or values).
-		for ( var i = 0, length = elems.length; i < length; i++ ) {
-			value = callback( elems[ i ], i, arg );
-
-			if ( value != null ) {
-				ret[ ret.length ] = value;
-			}
-		}
-
-		return ret.concat.apply( [], ret );
-	},
-
-	// A global GUID counter for objects
-	guid: 1,
-
-	proxy: function( fn, proxy, thisObject ) {
-		if ( arguments.length === 2 ) {
-			if ( typeof proxy === "string" ) {
-				thisObject = fn;
-				fn = thisObject[ proxy ];
-				proxy = undefined;
-
-			} else if ( proxy && !jQuery.isFunction( proxy ) ) {
-				thisObject = proxy;
-				proxy = undefined;
-			}
-		}
-
-		if ( !proxy && fn ) {
-			proxy = function() {
-				return fn.apply( thisObject || this, arguments );
-			};
-		}
-
-		// Set the guid of unique handler to the same of original handler, so it can be removed
-		if ( fn ) {
-			proxy.guid = fn.guid = fn.guid || proxy.guid || jQuery.guid++;
-		}
-
-		// So proxy can be declared as an argument
-		return proxy;
-	},
-
-	// Mutifunctional method to get and set values to a collection
-	// The value/s can be optionally by executed if its a function
-	access: function( elems, key, value, exec, fn, pass ) {
-		var length = elems.length;
-
-		// Setting many attributes
-		if ( typeof key === "object" ) {
-			for ( var k in key ) {
-				jQuery.access( elems, k, key[k], exec, fn, value );
-			}
-			return elems;
-		}
-
-		// Setting one attribute
-		if ( value !== undefined ) {
-			// Optionally, function values get executed if exec is true
-			exec = !pass && exec && jQuery.isFunction(value);
-
-			for ( var i = 0; i < length; i++ ) {
-				fn( elems[i], key, exec ? value.call( elems[i], i, fn( elems[i], key ) ) : value, pass );
-			}
-
-			return elems;
-		}
-
-		// Getting an attribute
-		return length ? fn( elems[0], key ) : undefined;
-	},
-
-	now: function() {
-		return (new Date()).getTime();
-	},
-
-	// Use of jQuery.browser is frowned upon.
-	// More details: http://docs.jquery.com/Utilities/jQuery.browser
-	uaMatch: function( ua ) {
-		ua = ua.toLowerCase();
-
-		var match = rwebkit.exec( ua ) ||
-			ropera.exec( ua ) ||
-			rmsie.exec( ua ) ||
-			ua.indexOf("compatible") < 0 && rmozilla.exec( ua ) ||
-			[];
-
-		return { browser: match[1] || "", version: match[2] || "0" };
-	},
-
-	browser: {}
-});
-
-// Populate the class2type map
-jQuery.each("Boolean Number String Function Array Date RegExp Object".split(" "), function(i, name) {
-	class2type[ "[object " + name + "]" ] = name.toLowerCase();
-});
-
-browserMatch = jQuery.uaMatch( userAgent );
-if ( browserMatch.browser ) {
-	jQuery.browser[ browserMatch.browser ] = true;
-	jQuery.browser.version = browserMatch.version;
-}
-
-// Deprecated, use jQuery.browser.webkit instead
-if ( jQuery.browser.webkit ) {
-	jQuery.browser.safari = true;
-}
-
-if ( indexOf ) {
-	jQuery.inArray = function( elem, array ) {
-		return indexOf.call( array, elem );
-	};
-}
-
-// Verify that \s matches non-breaking spaces
-// (IE fails on this test)
-if ( !rwhite.test( "\xA0" ) ) {
-	trimLeft = /^[\s\xA0]+/;
-	trimRight = /[\s\xA0]+$/;
-}
-
-// All jQuery objects should point back to these
-rootjQuery = jQuery(document);
-
-// Cleanup functions for the document ready method
-if ( document.addEventListener ) {
-	DOMContentLoaded = function() {
-		document.removeEventListener( "DOMContentLoaded", DOMContentLoaded, false );
-		jQuery.ready();
-	};
-
-} else if ( document.attachEvent ) {
-	DOMContentLoaded = function() {
-		// Make sure body exists, at least, in case IE gets a little overzealous (ticket #5443).
-		if ( document.readyState === "complete" ) {
-			document.detachEvent( "onreadystatechange", DOMContentLoaded );
-			jQuery.ready();
-		}
-	};
-}
-
-// The DOM ready check for Internet Explorer
-function doScrollCheck() {
-	if ( jQuery.isReady ) {
-		return;
-	}
-
-	try {
-		// If IE is used, use the trick by Diego Perini
-		// http://javascript.nwbox.com/IEContentLoaded/
-		document.documentElement.doScroll("left");
-	} catch(e) {
-		setTimeout( doScrollCheck, 1 );
-		return;
-	}
-
-	// and execute any waiting functions
-	jQuery.ready();
-}
-
-// Expose jQuery to the global object
-return (window.jQuery = window.$ = jQuery);
-
-})();

test/fixtures/profile/javascript/jquery-large-before.js

@@ -1,863 +0,0 @@
-var jQuery = (function() {
-
-// Define a local copy of jQuery
-var jQuery = function( selector, context ) {
-		// The jQuery object is actually just the init constructor 'enhanced'
-		return new jQuery.fn.init( selector, context );
-	},
-
-	// Map over jQuery in case of overwrite
-	_jQuery = window.jQuery,
-
-	// Map over the $ in case of overwrite
-	_$ = window.$,
-
-	// A central reference to the root jQuery(document)
-	rootjQuery,
-
-	// A simple way to check for HTML strings or ID strings
-	// (both of which we optimize for)
-	quickExpr = /^(?:[^<]*(<[\w\W]+>)[^>]*$|#([\w\-]+)$)/,
-
-	// Is it a simple selector
-	isSimple = /^.[^:#\[\.,]*$/,
-
-	// Check if a string has a non-whitespace character in it
-	rnotwhite = /\S/,
-	rwhite = /\s/,
-
-	// Used for trimming whitespace
-	trimLeft = /^\s+/,
-	trimRight = /\s+$/,
-
-	// Check for non-word characters
-	rnonword = /\W/,
-
-	// Match a standalone tag
-	rsingleTag = /^<(\w+)\s*\/?>(?:<\/\1>)?$/,
-
-	// JSON RegExp
-	rvalidchars = /^[\],:{}\s]*$/,
-	rvalidescape = /\\(?:["\\\/bfnrt]|u[0-9a-fA-F]{4})/g,
-	rvalidtokens = /"[^"\\\n\r]*"|true|false|null|-?\d+(?:\.\d*)?(?:[eE][+\-]?\d+)?/g,
-	rvalidbraces = /(?:^|:|,)(?:\s*\[)+/g,
-
-	// Useragent RegExp
-	rwebkit = /(webkit)[ \/]([\w.]+)/,
-	ropera = /(opera)(?:.*version)?[ \/]([\w.]+)/,
-	rmsie = /(msie) ([\w.]+)/,
-	rmozilla = /(mozilla)(?:.*? rv:([\w.]+))?/,
-
-	// Keep a UserAgent string for use with jQuery.browser
-	userAgent = navigator.userAgent,
-
-	// For matching the engine and version of the browser
-	browserMatch,
-
-	// Has the ready events already been bound?
-	readyBound = false,
-
-	// The functions to execute on DOM ready
-	readyList = [],
-
-	// The ready event handler
-	DOMContentLoaded,
-
-	// Save a reference to some core methods
-	toString = Object.prototype.toString,
-	hasOwn = Object.prototype.hasOwnProperty,
-	push = Array.prototype.push,
-	slice = Array.prototype.slice,
-	trim = String.prototype.trim,
-	indexOf = Array.prototype.indexOf;
-
-jQuery.fn = jQuery.prototype = {
-	init: function( selector, context ) {
-		var match, elem, ret, doc;
-
-		// Handle $(""), $(null), or $(undefined)
-		if ( !selector ) {
-			return this;
-		}
-
-		// Handle $(DOMElement)
-		if ( selector.nodeType ) {
-			this.context = this[0] = selector;
-			this.length = 1;
-			return this;
-		}
-
-		// The body element only exists once, optimize finding it
-		if ( selector === "body" && !context ) {
-			this.context = document;
-			this[0] = document.body;
-			this.selector = "body";
-			this.length = 1;
-			return this;
-		}
-
-		// Handle HTML strings
-		if ( typeof selector === "string" ) {
-			// Are we dealing with HTML string or an ID?
-			match = quickExpr.exec( selector );
-
-			// Verify a match, and that no context was specified for #id
-			if ( match && (match[1] || !context) ) {
-
-				// HANDLE: $(html) -> $(array)
-				if ( match[1] ) {
-					doc = (context ? context.ownerDocument || context : document);
-
-					// If a single string is passed in and it's a single tag
-					// just do a createElement and skip the rest
-					ret = rsingleTag.exec( selector );
-
-					if ( ret ) {
-						if ( jQuery.isPlainObject( context ) ) {
-							selector = [ document.createElement( ret[1] ) ];
-							jQuery.fn.attr.call( selector, context, true );
-
-						} else {
-							selector = [ doc.createElement( ret[1] ) ];
-						}
-
-					} else {
-						ret = jQuery.buildFragment( [ match[1] ], [ doc ] );
-						selector = (ret.cacheable ? ret.fragment.cloneNode(true) : ret.fragment).childNodes;
-					}
-
-					return jQuery.merge( this, selector );
-
-				// HANDLE: $("#id")
-				} else {
-					elem = document.getElementById( match[2] );
-
-					// Check parentNode to catch when Blackberry 4.6 returns
-					// nodes that are no longer in the document #6963
-					if ( elem && elem.parentNode ) {
-						// Handle the case where IE and Opera return items
-						// by name instead of ID
-						if ( elem.id !== match[2] ) {
-							return rootjQuery.find( selector );
-						}
-
-						// Otherwise, we inject the element directly into the jQuery object
-						this.length = 1;
-						this[0] = elem;
-					}
-
-					this.context = document;
-					this.selector = selector;
-					return this;
-				}
-
-			// HANDLE: $("TAG")
-			} else if ( !context && !rnonword.test( selector ) ) {
-				this.selector = selector;
-				this.context = document;
-				selector = document.getElementsByTagName( selector );
-				return jQuery.merge( this, selector );
-
-			// HANDLE: $(expr, $(...))
-			} else if ( !context || context.jquery ) {
-				return (context || rootjQuery).find( selector );
-
-			// HANDLE: $(expr, context)
-			// (which is just equivalent to: $(context).find(expr)
-			} else {
-				return jQuery( context ).find( selector );
-			}
-
-		// HANDLE: $(function)
-		// Shortcut for document ready
-		} else if ( jQuery.isFunction( selector ) ) {
-			return rootjQuery.ready( selector );
-		}
-
-		if (selector.selector !== undefined) {
-			this.selector = selector.selector;
-			this.context = selector.context;
-		}
-
-		return jQuery.makeArray( selector, this );
-	},
-
-	// Start with an empty selector
-	selector: "",
-
-	// The current version of jQuery being used
-	jquery: "@VERSION",
-
-	// The default length of a jQuery object is 0
-	length: 0,
-
-	// The number of elements contained in the matched element set
-	size: function() {
-		return this.length;
-	},
-
-	toArray: function() {
-		return slice.call( this, 0 );
-	},
-
-	// Get the Nth element in the matched element set OR
-	// Get the whole matched element set as a clean array
-	get: function( num ) {
-		return num == null ?
-
-			// Return a 'clean' array
-			this.toArray() :
-
-			// Return just the object
-			( num < 0 ? this.slice(num)[ 0 ] : this[ num ] );
-	},
-
-	// Take an array of elements and push it onto the stack
-	// (returning the new matched element set)
-	pushStack: function( elems, name, selector ) {
-		// Build a new jQuery matched element set
-		var ret = jQuery();
-
-		if ( jQuery.isArray( elems ) ) {
-			push.apply( ret, elems );
-
-		} else {
-			jQuery.merge( ret, elems );
-		}
-
-		// Add the old object onto the stack (as a reference)
-		ret.prevObject = this;
-
-		ret.context = this.context;
-
-		if ( name === "find" ) {
-			ret.selector = this.selector + (this.selector ? " " : "") + selector;
-		} else if ( name ) {
-			ret.selector = this.selector + "." + name + "(" + selector + ")";
-		}
-
-		// Return the newly-formed element set
-		return ret;
-	},
-
-	// Execute a callback for every element in the matched set.
-	// (You can seed the arguments with an array of args, but this is
-	// only used internally.)
-	each: function( callback, args ) {
-		return jQuery.each( this, callback, args );
-	},
-
-	ready: function( fn ) {
-		// Attach the listeners
-		jQuery.bindReady();
-
-		// If the DOM is already ready
-		if ( jQuery.isReady ) {
-			// Execute the function immediately
-			fn.call( document, jQuery );
-
-		// Otherwise, remember the function for later
-		} else if ( readyList ) {
-			// Add the function to the wait list
-			readyList.push( fn );
-		}
-
-		return this;
-	},
-
-	eq: function( i ) {
-		return i === -1 ?
-			this.slice( i ) :
-			this.slice( i, +i + 1 );
-	},
-
-	first: function() {
-		return this.eq( 0 );
-	},
-
-	last: function() {
-		return this.eq( -1 );
-	},
-
-	slice: function() {
-		return this.pushStack( slice.apply( this, arguments ),
-			"slice", slice.call(arguments).join(",") );
-	},
-
-	map: function( callback ) {
-		return this.pushStack( jQuery.map(this, function( elem, i ) {
-			return callback.call( elem, i, elem );
-		}));
-	},
-
-	end: function() {
-		return this.prevObject || jQuery(null);
-	},
-
-	// For internal use only.
-	// Behaves like an Array's method, not like a jQuery method.
-	push: push,
-	sort: [].sort,
-	splice: [].splice
-};
-
-// Give the init function the jQuery prototype for later instantiation
-jQuery.fn.init.prototype = jQuery.fn;
-
-jQuery.extend = jQuery.fn.extend = function() {
-	// copy reference to target object
-	var target = arguments[0] || {}, i = 1, length = arguments.length, deep = false, options, name, src, copy;
-
-	// Handle a deep copy situation
-	if ( typeof target === "boolean" ) {
-		deep = target;
-		target = arguments[1] || {};
-		// skip the boolean and the target
-		i = 2;
-	}
-
-	// Handle case when target is a string or something (possible in deep copy)
-	if ( typeof target !== "object" && !jQuery.isFunction(target) ) {
-		target = {};
-	}
-
-	// extend jQuery itself if only one argument is passed
-	if ( length === i ) {
-		target = this;
-		--i;
-	}
-
-	for ( ; i < length; i++ ) {
-		// Only deal with non-null/undefined values
-		if ( (options = arguments[ i ]) != null ) {
-			// Extend the base object
-			for ( name in options ) {
-				src = target[ name ];
-				copy = options[ name ];
-
-				// Prevent never-ending loop
-				if ( target === copy ) {
-					continue;
-				}
-
-				// Recurse if we're merging object literal values or arrays
-				if ( deep && copy && ( jQuery.isPlainObject(copy) || jQuery.isArray(copy) ) ) {
-					var clone = src && ( jQuery.isPlainObject(src) || jQuery.isArray(src) ) ? src
-						: jQuery.isArray(copy) ? [] : {};
-
-					// Never move original objects, clone them
-					target[ name ] = jQuery.extend( deep, clone, copy );
-
-				// Don't bring in undefined values
-				} else if ( copy !== undefined ) {
-					target[ name ] = copy;
-				}
-			}
-		}
-	}
-
-	// Return the modified object
-	return target;
-};
-
-jQuery.extend({
-	noConflict: function( deep ) {
-		window.$ = _$;
-
-		if ( deep ) {
-			window.jQuery = _jQuery;
-		}
-
-		return jQuery;
-	},
-
-	// Is the DOM ready to be used? Set to true once it occurs.
-	isReady: false,
-
-	// A counter to track how many items to wait for before
-	// the ready event fires. See #6781
-	readyWait: 1,
-
-	// Handle when the DOM is ready
-	ready: function( wait ) {
-		// A third-party is pushing the ready event forwards
-		if ( wait === true ) {
-			jQuery.readyWait--;
-		}
-
-		// Make sure that the DOM is not already loaded
-		if ( !jQuery.readyWait || (wait !== true && !jQuery.isReady) ) {
-			// Make sure body exists, at least, in case IE gets a little overzealous (ticket #5443).
-			if ( !document.body ) {
-				return setTimeout( jQuery.ready, 13 );
-			}
-
-			// Remember that the DOM is ready
-			jQuery.isReady = true;
-
-			// If a normal DOM Ready event fired, decrement, and wait if need be
-			if ( wait !== true && --jQuery.readyWait > 0 ) {
-				return;
-			}
-
-			// If there are functions bound, to execute
-			if ( readyList ) {
-				// Execute all of them
-				var fn, i = 0;
-				while ( (fn = readyList[ i++ ]) ) {
-					fn.call( document, jQuery );
-				}
-
-				// Reset the list of functions
-				readyList = null;
-			}
-
-			// Trigger any bound ready events
-			if ( jQuery.fn.triggerHandler ) {
-				jQuery( document ).triggerHandler( "ready" );
-			}
-		}
-	},
-
-	bindReady: function() {
-		if ( readyBound ) {
-			return;
-		}
-
-		readyBound = true;
-
-		// Catch cases where $(document).ready() is called after the
-		// browser event has already occurred.
-		if ( document.readyState === "complete" ) {
-			return jQuery.ready();
-		}
-
-		// Mozilla, Opera and webkit nightlies currently support this event
-		if ( document.addEventListener ) {
-			// Use the handy event callback
-			document.addEventListener( "DOMContentLoaded", DOMContentLoaded, false );
-
-			// A fallback to window.onload, that will always work
-			window.addEventListener( "load", jQuery.ready, false );
-
-		// If IE event model is used
-		} else if ( document.attachEvent ) {
-			// ensure firing before onload,
-			// maybe late but safe also for iframes
-			document.attachEvent("onreadystatechange", DOMContentLoaded);
-
-			// A fallback to window.onload, that will always work
-			window.attachEvent( "onload", jQuery.ready );
-
-			// If IE and not a frame
-			// continually check to see if the document is ready
-			var toplevel = false;
-
-			try {
-				toplevel = window.frameElement == null;
-			} catch(e) {}
-
-			if ( document.documentElement.doScroll && toplevel ) {
-				doScrollCheck();
-			}
-		}
-	},
-
-	// See test/unit/core.js for details concerning isFunction.
-	// Since version 1.3, DOM methods and functions like alert
-	// aren't supported. They return false on IE (#2968).
-	isFunction: function( obj ) {
-		return jQuery.type(obj) === "function";
-	},
-
-	isArray: Array.isArray || function( obj ) {
-		return jQuery.type(obj) === "array";
-	},
-
-	// A crude way of determining if an object is a window
-	isWindow: function( obj ) {
-		return obj && typeof obj === "object" && "setInterval" in obj;
-	},
-
-	type: function( obj ) {
-		return obj == null ?
-			String( obj ) :
-			toString.call(obj).slice(8, -1).toLowerCase();
-	},
-
-	isPlainObject: function( obj ) {
-		// Must be an Object.
-		// Because of IE, we also have to check the presence of the constructor property.
-		// Make sure that DOM nodes and window objects don't pass through, as well
-		if ( !obj || jQuery.type(obj) !== "object" || obj.nodeType || jQuery.isWindow( obj ) ) {
-			return false;
-		}
-
-		// Not own constructor property must be Object
-		if ( obj.constructor &&
-			!hasOwn.call(obj, "constructor") &&
-			!hasOwn.call(obj.constructor.prototype, "isPrototypeOf") ) {
-			return false;
-		}
-
-		// Own properties are enumerated firstly, so to speed up,
-		// if last one is own, then all properties are own.
-
-		var key;
-		for ( key in obj ) {}
-
-		return key === undefined || hasOwn.call( obj, key );
-	},
-
-	isEmptyObject: function( obj ) {
-		for ( var name in obj ) {
-			return false;
-		}
-		return true;
-	},
-
-	error: function( msg ) {
-		throw msg;
-	},
-
-	parseJSON: function( data ) {
-		if ( typeof data !== "string" || !data ) {
-			return null;
-		}
-
-		// Make sure leading/trailing whitespace is removed (IE can't handle it)
-		data = jQuery.trim( data );
-
-		// Make sure the incoming data is actual JSON
-		// Logic borrowed from http://json.org/json2.js
-		if ( rvalidchars.test(data.replace(rvalidescape, "@")
-			.replace(rvalidtokens, "]")
-			.replace(rvalidbraces, "")) ) {
-
-			// Try to use the native JSON parser first
-			return window.JSON && window.JSON.parse ?
-				window.JSON.parse( data ) :
-				(new Function("return " + data))();
-
-		} else {
-			jQuery.error( "Invalid JSON: " + data );
-		}
-	},
-
-	noop: function() {},
-
-	// Evalulates a script in a global context
-	globalEval: function( data ) {
-		if ( data && rnotwhite.test(data) ) {
-			// Inspired by code by Andrea Giammarchi
-			// http://webreflection.blogspot.com/2007/08/global-scope-evaluation-and-dom.html
-			var head = document.getElementsByTagName("head")[0] || document.documentElement,
-				script = document.createElement("script");
-
-			script.type = "text/javascript";
-
-			if ( jQuery.support.scriptEval ) {
-				script.appendChild( document.createTextNode( data ) );
-			} else {
-				script.text = data;
-			}
-
-			// Use insertBefore instead of appendChild to circumvent an IE6 bug.
-			// This arises when a base node is used (#2709).
-			head.insertBefore( script, head.firstChild );
-			head.removeChild( script );
-		}
-	},
-
-	nodeName: function( elem, name ) {
-		return elem.nodeName && elem.nodeName.toUpperCase() === name.toUpperCase();
-	},
-
-	// args is for internal usage only
-	each: function( object, callback, args ) {
-		var name, i = 0,
-			length = object.length,
-			isObj = length === undefined || jQuery.isFunction(object);
-
-		if ( args ) {
-			if ( isObj ) {
-				for ( name in object ) {
-					if ( callback.apply( object[ name ], args ) === false ) {
-						break;
-					}
-				}
-			} else {
-				for ( ; i < length; ) {
-					if ( callback.apply( object[ i++ ], args ) === false ) {
-						break;
-					}
-				}
-			}
-
-		// A special, fast, case for the most common use of each
-		} else {
-			if ( isObj ) {
-				for ( name in object ) {
-					if ( callback.call( object[ name ], name, object[ name ] ) === false ) {
-						break;
-					}
-				}
-			} else {
-				for ( var value = object[0];
-					i < length && callback.call( value, i, value ) !== false; value = object[++i] ) {}
-			}
-		}
-
-		return object;
-	},
-
-	// Use native String.trim function wherever possible
-	trim: trim ?
-		function( text ) {
-			return text == null ?
-				"" :
-				trim.call( text );
-		} :
-
-		// Otherwise use our own trimming functionality
-		function( text ) {
-			return text == null ?
-				"" :
-				text.toString().replace( trimLeft, "" ).replace( trimRight, "" );
-		},
-
-	// results is for internal usage only
-	makeArray: function( array, results ) {
-		var ret = results || [];
-
-		if ( array != null ) {
-			// The window, strings (and functions) also have 'length'
-			// The extra typeof function check is to prevent crashes
-			// in Safari 2 (See: #3039)
-			// Tweaked logic slightly to handle Blackberry 4.7 RegExp issues #6930
-			var type = jQuery.type(array);
-
-			if ( array.length == null || type === "string" || type === "function" || type === "regexp" || jQuery.isWindow( array ) ) {
-				push.call( ret, array );
-			} else {
-				jQuery.merge( ret, array );
-			}
-		}
-
-		return ret;
-	},
-
-	inArray: function( elem, array ) {
-		if ( array.indexOf ) {
-			return array.indexOf( elem );
-		}
-
-		for ( var i = 0, length = array.length; i < length; i++ ) {
-			if ( array[ i ] === elem ) {
-				return i;
-			}
-		}
-
-		return -1;
-	},
-
-	merge: function( first, second ) {
-		var i = first.length, j = 0;
-
-		if ( typeof second.length === "number" ) {
-			for ( var l = second.length; j < l; j++ ) {
-				first[ i++ ] = second[ j ];
-			}
-
-		} else {
-			while ( second[j] !== undefined ) {
-				first[ i++ ] = second[ j++ ];
-			}
-		}
-
-		first.length = i;
-
-		return first;
-	},
-
-	grep: function( elems, callback, inv ) {
-		var ret = [], retVal;
-		inv = !!inv;
-
-		// Go through the array, only saving the items
-		// that pass the validator function
-		for ( var i = 0, length = elems.length; i < length; i++ ) {
-			retVal = !!callback( elems[ i ], i );
-			if ( inv !== retVal ) {
-				ret.push( elems[ i ] );
-			}
-		}
-
-		return ret;
-	},
-
-	// arg is for internal usage only
-	map: function( elems, callback, arg ) {
-		var ret = [], value;
-
-		// Go through the array, translating each of the items to their
-		// new value (or values).
-		for ( var i = 0, length = elems.length; i < length; i++ ) {
-			value = callback( elems[ i ], i, arg );
-
-			if ( value != null ) {
-				ret[ ret.length ] = value;
-			}
-		}
-
-		return ret.concat.apply( [], ret );
-	},
-
-	// A global GUID counter for objects
-	guid: 1,
-
-	proxy: function( fn, proxy, thisObject ) {
-		if ( arguments.length === 2 ) {
-			if ( typeof proxy === "string" ) {
-				thisObject = fn;
-				fn = thisObject[ proxy ];
-				proxy = undefined;
-
-			} else if ( proxy && !jQuery.isFunction( proxy ) ) {
-				thisObject = proxy;
-				proxy = undefined;
-			}
-		}
-
-		if ( !proxy && fn ) {
-			proxy = function() {
-				return fn.apply( thisObject || this, arguments );
-			};
-		}
-
-		// Set the guid of unique handler to the same of original handler, so it can be removed
-		if ( fn ) {
-			proxy.guid = fn.guid = fn.guid || proxy.guid || jQuery.guid++;
-		}
-
-		// So proxy can be declared as an argument
-		return proxy;
-	},
-
-	// Mutifunctional method to get and set values to a collection
-	// The value/s can be optionally by executed if its a function
-	access: function( elems, key, value, exec, fn, pass ) {
-		var length = elems.length;
-
-		// Setting many attributes
-		if ( typeof key === "object" ) {
-			for ( var k in key ) {
-				jQuery.access( elems, k, key[k], exec, fn, value );
-			}
-			return elems;
-		}
-
-		// Setting one attribute
-		if ( value !== undefined ) {
-			// Optionally, function values get executed if exec is true
-			exec = !pass && exec && jQuery.isFunction(value);
-
-			for ( var i = 0; i < length; i++ ) {
-				fn( elems[i], key, exec ? value.call( elems[i], i, fn( elems[i], key ) ) : value, pass );
-			}
-
-			return elems;
-		}
-
-		// Getting an attribute
-		return length ? fn( elems[0], key ) : undefined;
-	},
-
-	now: function() {
-		return (new Date()).getTime();
-	},
-
-	// Use of jQuery.browser is frowned upon.
-	// More details: http://docs.jquery.com/Utilities/jQuery.browser
-	uaMatch: function( ua ) {
-		ua = ua.toLowerCase();
-
-		var match = rwebkit.exec( ua ) ||
-			ropera.exec( ua ) ||
-			rmsie.exec( ua ) ||
-			ua.indexOf("compatible") < 0 && rmozilla.exec( ua ) ||
-			[];
-
-		return { browser: match[1] || "", version: match[2] || "0" };
-	},
-
-	browser: {}
-});
-
-browserMatch = jQuery.uaMatch( userAgent );
-if ( browserMatch.browser ) {
-	jQuery.browser[ browserMatch.browser ] = true;
-	jQuery.browser.version = browserMatch.version;
-}
-
-// Deprecated, use jQuery.browser.webkit instead
-if ( jQuery.browser.webkit ) {
-	jQuery.browser.safari = true;
-}
-
-if ( indexOf ) {
-	jQuery.inArray = function( elem, array ) {
-		return indexOf.call( array, elem );
-	};
-}
-
-// Verify that \s matches non-breaking spaces
-// (IE fails on this test)
-if ( !rwhite.test( "\xA0" ) ) {
-	trimLeft = /^[\s\xA0]+/;
-	trimRight = /[\s\xA0]+$/;
-}
-
-// All jQuery objects should point back to these
-rootjQuery = jQuery(document);
-
-// Cleanup functions for the document ready method
-if ( document.addEventListener ) {
-	DOMContentLoaded = function() {
-		document.removeEventListener( "DOMContentLoaded", DOMContentLoaded, false );
-		jQuery.ready();
-	};
-
-} else if ( document.attachEvent ) {
-	DOMContentLoaded = function() {
-		// Make sure body exists, at least, in case IE gets a little overzealous (ticket #5443).
-		if ( document.readyState === "complete" ) {
-			document.detachEvent( "onreadystatechange", DOMContentLoaded );
-			jQuery.ready();
-		}
-	};
-}
-
-// The DOM ready check for Internet Explorer
-function doScrollCheck() {
-	if ( jQuery.isReady ) {
-		return;
-	}
-
-	try {
-		// If IE is used, use the trick by Diego Perini
-		// http://javascript.nwbox.com/IEContentLoaded/
-		document.documentElement.doScroll("left");
-	} catch(e) {
-		setTimeout( doScrollCheck, 1 );
-		return;
-	}
-
-	// and execute any waiting functions
-	jQuery.ready();
-}
-
-// Expose jQuery to the global object
-return (window.jQuery = window.$ = jQuery);
-
-})();

test/fixtures/profile/javascript/jquery-medium-after.js

@@ -1,177 +0,0 @@
-define( [
-	"../core",
-	"../var/rnotwhite",
-	"../data/var/dataPriv",
-	"../core/init"
-], function( jQuery, rnotwhite, dataPriv ) {
-
-var rclass = /[\t\r\n\f]/g;
-
-function getClass( elem ) {
-	return elem.getAttribute && elem.getAttribute( "class" ) || "";
-}
-
-jQuery.fn.extend( {
-	addClass: function( value ) {
-		var classes, elem, cur, curValue, clazz, j, finalValue,
-			i = 0;
-
-		if ( jQuery.isFunction( value ) ) {
-			return this.each( function( j ) {
-				jQuery( this ).addClass( value.call( this, j, getClass( this ) ) );
-			} );
-		}
-
-		if ( typeof value === "string" && value ) {
-			classes = value.match( rnotwhite ) || [];
-
-			while ( ( elem = this[ i++ ] ) ) {
-				curValue = getClass( elem );
-				cur = elem.nodeType === 1 &&
-					( " " + curValue + " " ).replace( rclass, " " );
-
-				if ( cur ) {
-					j = 0;
-					while ( ( clazz = classes[ j++ ] ) ) {
-						if ( cur.indexOf( " " + clazz + " " ) < 0 ) {
-							cur += clazz + " ";
-						}
-					}
-
-					// Only assign if different to avoid unneeded rendering.
-					finalValue = jQuery.trim( cur );
-					if ( curValue !== finalValue ) {
-						elem.setAttribute( "class", finalValue );
-					}
-				}
-			}
-		}
-
-		return this;
-	},
-
-	removeClass: function( value ) {
-		var classes, elem, cur, curValue, clazz, j, finalValue,
-			i = 0;
-
-		if ( jQuery.isFunction( value ) ) {
-			return this.each( function( j ) {
-				jQuery( this ).removeClass( value.call( this, j, getClass( this ) ) );
-			} );
-		}
-
-		if ( !arguments.length ) {
-			return this.attr( "class", "" );
-		}
-
-		if ( typeof value === "string" && value ) {
-			classes = value.match( rnotwhite ) || [];
-
-			while ( ( elem = this[ i++ ] ) ) {
-				curValue = getClass( elem );
-
-				// This expression is here for better compressibility (see addClass)
-				cur = elem.nodeType === 1 &&
-					( " " + curValue + " " ).replace( rclass, " " );
-
-				if ( cur ) {
-					j = 0;
-					while ( ( clazz = classes[ j++ ] ) ) {
-
-						// Remove *all* instances
-						while ( cur.indexOf( " " + clazz + " " ) > -1 ) {
-							cur = cur.replace( " " + clazz + " ", " " );
-						}
-					}
-
-					// Only assign if different to avoid unneeded rendering.
-					finalValue = jQuery.trim( cur );
-					if ( curValue !== finalValue ) {
-						elem.setAttribute( "class", finalValue );
-					}
-				}
-			}
-		}
-
-		return this;
-	},
-
-	toggleClass: function( value, stateVal ) {
-		var type = typeof value;
-
-		if ( typeof stateVal === "boolean" && type === "string" ) {
-			return stateVal ? this.addClass( value ) : this.removeClass( value );
-		}
-
-		if ( jQuery.isFunction( value ) ) {
-			return this.each( function( i ) {
-				jQuery( this ).toggleClass(
-					value.call( this, i, getClass( this ), stateVal ),
-					stateVal
-				);
-			} );
-		}
-
-		return this.each( function() {
-			var className, i, self, classNames;
-
-			if ( type === "string" ) {
-
-				// Toggle individual class names
-				i = 0;
-				self = jQuery( this );
-				classNames = value.match( rnotwhite ) || [];
-
-				while ( ( className = classNames[ i++ ] ) ) {
-
-					// Check each className given, space separated list
-					if ( self.hasClass( className ) ) {
-						self.removeClass( className );
-					} else {
-						self.addClass( className );
-					}
-				}
-
-			// Toggle whole class name
-			} else if ( value === undefined || type === "boolean" ) {
-				className = getClass( this );
-				if ( className ) {
-
-					// Store className if set
-					dataPriv.set( this, "__className__", className );
-				}
-
-				// If the element has a class name or if we're passed `false`,
-				// then remove the whole classname (if there was one, the above saved it).
-				// Otherwise bring back whatever was previously saved (if anything),
-				// falling back to the empty string if nothing was stored.
-				if ( this.setAttribute ) {
-					this.setAttribute( "class",
-						className || value === false ?
-						"" :
-						dataPriv.get( this, "__className__" ) || ""
-					);
-				}
-			}
-		} );
-	},
-
-	hasClass: function( selector ) {
-		var className, elem,
-			i = 0;
-
-		className = " " + selector + " ";
-		while ( ( elem = this[ i++ ] ) ) {
-			if ( elem.nodeType === 1 &&
-				( " " + getClass( elem ) + " " ).replace( rclass, " " )
-					.indexOf( className ) > -1
-			) {
-				return true;
-			}
-		}
-
-		return false;
-	}
-} );
-
-} );

test/fixtures/profile/javascript/jquery-medium-before.js

@@ -1,174 +0,0 @@
-define( [
-	"../core",
-	"../core/stripAndCollapse",
-	"../var/rnothtmlwhite",
-	"../data/var/dataPriv",
-	"../core/init"
-], function( jQuery, stripAndCollapse, rnothtmlwhite, dataPriv ) {
-
-"use strict";
-
-function getClass( elem ) {
-	return elem.getAttribute && elem.getAttribute( "class" ) || "";
-}
-
-jQuery.fn.extend( {
-	addClass: function( value ) {
-		var classes, elem, cur, curValue, clazz, j, finalValue,
-			i = 0;
-
-		if ( jQuery.isFunction( value ) ) {
-			return this.each( function( j ) {
-				jQuery( this ).addClass( value.call( this, j, getClass( this ) ) );
-			} );
-		}
-
-		if ( typeof value === "string" && value ) {
-			classes = value.match( rnothtmlwhite ) || [];
-
-			while ( ( elem = this[ i++ ] ) ) {
-				curValue = getClass( elem );
-				cur = elem.nodeType === 1 && ( " " + stripAndCollapse( curValue ) + " " );
-
-				if ( cur ) {
-					j = 0;
-					while ( ( clazz = classes[ j++ ] ) ) {
-						if ( cur.indexOf( " " + clazz + " " ) < 0 ) {
-							cur += clazz + " ";
-						}
-					}
-
-					// Only assign if different to avoid unneeded rendering.
-					finalValue = stripAndCollapse( cur );
-					if ( curValue !== finalValue ) {
-						elem.setAttribute( "class", finalValue );
-					}
-				}
-			}
-		}
-
-		return this;
-	},
-
-	removeClass: function( value ) {
-		var classes, elem, cur, curValue, clazz, j, finalValue,
-			i = 0;
-
-		if ( jQuery.isFunction( value ) ) {
-			return this.each( function( j ) {
-				jQuery( this ).removeClass( value.call( this, j, getClass( this ) ) );
-			} );
-		}
-
-		if ( !arguments.length ) {
-			return this.attr( "class", "" );
-		}
-
-		if ( typeof value === "string" && value ) {
-			classes = value.match( rnothtmlwhite ) || [];
-
-			while ( ( elem = this[ i++ ] ) ) {
-				curValue = getClass( elem );
-
-				// This expression is here for better compressibility (see addClass)
-				cur = elem.nodeType === 1 && ( " " + stripAndCollapse( curValue ) + " " );
-
-				if ( cur ) {
-					j = 0;
-					while ( ( clazz = classes[ j++ ] ) ) {
-
-						// Remove *all* instances
-						while ( cur.indexOf( " " + clazz + " " ) > -1 ) {
-							cur = cur.replace( " " + clazz + " ", " " );
-						}
-					}
-
-					// Only assign if different to avoid unneeded rendering.
-					finalValue = stripAndCollapse( cur );
-					if ( curValue !== finalValue ) {
-						elem.setAttribute( "class", finalValue );
-					}
-				}
-			}
-		}
-
-		return this;
-	},
-
-	toggleClass: function( value, stateVal ) {
-		var type = typeof value;
-
-		if ( typeof stateVal === "boolean" && type === "string" ) {
-			return stateVal ? this.addClass( value ) : this.removeClass( value );
-		}
-
-		if ( jQuery.isFunction( value ) ) {
-			return this.each( function( i ) {
-				jQuery( this ).toggleClass(
-					value.call( this, i, getClass( this ), stateVal ),
-					stateVal
-				);
-			} );
-		}
-
-		return this.each( function() {
-			var className, i, self, classNames;
-
-			if ( type === "string" ) {
-
-				// Toggle individual class names
-				i = 0;
-				self = jQuery( this );
-				classNames = value.match( rnothtmlwhite ) || [];
-
-				while ( ( className = classNames[ i++ ] ) ) {
-
-					// Check each className given, space separated list
-					if ( self.hasClass( className ) ) {
-						self.removeClass( className );
-					} else {
-						self.addClass( className );
-					}
-				}
-
-			// Toggle whole class name
-			} else if ( value === undefined || type === "boolean" ) {
-				className = getClass( this );
-				if ( className ) {
-
-					// Store className if set
-					dataPriv.set( this, "__className__", className );
-				}
-
-				// If the element has a class name or if we're passed `false`,
-				// then remove the whole classname (if there was one, the above saved it).
-				// Otherwise bring back whatever was previously saved (if anything),
-				// falling back to the empty string if nothing was stored.
-				if ( this.setAttribute ) {
-					this.setAttribute( "class",
-						className || value === false ?
-						"" :
-						dataPriv.get( this, "__className__" ) || ""
-					);
-				}
-			}
-		} );
-	},
-
-	hasClass: function( selector ) {
-		var className, elem,
-			i = 0;
-
-		className = " " + selector + " ";
-		while ( ( elem = this[ i++ ] ) ) {
-			if ( elem.nodeType === 1 &&
-				( " " + stripAndCollapse( getClass( elem ) ) + " " ).indexOf( className ) > -1 ) {
-					return true;
-			}
-		}
-
-		return false;
-	}
-} );
-
-} );

test/fixtures/profile/javascript/jquery-small-after.js

@@ -1,56 +0,0 @@
-// Use the right jQuery source on the test page (and iframes)
-( function() {
-	/* global loadTests: false */
-
-	var path = window.location.pathname.split( "test" )[ 0 ],
-		QUnit = window.QUnit || parent.QUnit,
-		require = window.require || parent.require,
-
-		// Default to unminified jQuery for directly-opened iframes
-		urlParams = QUnit ?
-			QUnit.urlParams :
-			{ dev: true },
-		src = urlParams.dev ?
-			"dist/jquery.js" :
-			"dist/jquery.min.js";
-
-	// Define configuration parameters controlling how jQuery is loaded
-	if ( QUnit ) {
-		QUnit.config.urlConfig.push( {
-			id: "amd",
-			label: "Load with AMD",
-			tooltip: "Load the AMD jQuery file (and its dependencies)"
-		} );
-		QUnit.config.urlConfig.push( {
-			id: "dev",
-			label: "Load unminified",
-			tooltip: "Load the development (unminified) jQuery file"
-		} );
-	}
-
-	// Honor AMD loading on the main window (detected by seeing QUnit on it).
-	// This doesn't apply to iframes because they synchronously expect jQuery to be there.
-	if ( urlParams.amd && window.QUnit ) {
-		require.config( {
-			baseUrl: path
-		} );
-		src = "src/jquery";
-
-		// Include tests if specified
-		if ( typeof loadTests !== "undefined" ) {
-			require( [ src ], loadTests );
-		} else {
-			require( [ src ] );
-		}
-
-	// Otherwise, load synchronously
-	} else {
-		document.write( "<script id='jquery-js' src='" + path + src + "'><\x2Fscript>" );
-
-		// Synchronous-only tests (other tests are loaded from the test page)
-		if ( typeof loadTests !== "undefined" ) {
-			document.write( "<script src='" + path + "test/unit/ready.js'><\x2Fscript>" );
-		}
-	}
-
-} )();

test/fixtures/profile/javascript/jquery-small-before.js

@@ -1,55 +0,0 @@
-// Use the right jQuery source on the test page (and iframes)
-( function() {
-	/* global loadTests: false */
-
-	var src,
-		path = window.location.pathname.split( "test" )[ 0 ],
-		QUnit = window.QUnit || parent.QUnit,
-		require = window.require || parent.require;
-
-	// iFrames won't load AMD (the iframe tests synchronously expect jQuery to be there)
-	QUnit.config.urlConfig.push( {
-		id: "amd",
-		label: "Load with AMD",
-		tooltip: "Load the AMD jQuery file (and its dependencies)"
-	} );
-
-	// If QUnit is on window, this is the main window
-	// This detection allows AMD tests to be run in an iframe
-	if ( QUnit.urlParams.amd && window.QUnit ) {
-		require.config( {
-			baseUrl: path
-		} );
-		src = "src/jquery";
-
-		// Include tests if specified
-		if ( typeof loadTests !== "undefined" ) {
-			require( [ src ], loadTests );
-		} else {
-			require( [ src ] );
-		}
-		return;
-	}
-
-	// Config parameter to use minified jQuery
-	QUnit.config.urlConfig.push( {
-		id: "dev",
-		label: "Load unminified",
-		tooltip: "Load the development (unminified) jQuery file"
-	} );
-	if ( QUnit.urlParams.dev ) {
-		src = "dist/jquery.js";
-	} else {
-		src = "dist/jquery.min.js";
-	}
-
-	// Load jQuery
-	document.write( "<script id='jquery-js' src='" + path + src + "'><\x2Fscript>" );
-
-	// Synchronous-only tests
-	// Other tests are loaded from the test page
-	if ( typeof loadTests !== "undefined" ) {
-		document.write( "<script src='" + path + "test/unit/ready.js'><\x2Fscript>" );
-	}
-
-} )();

test/fixtures/typescript/ambient-declarations.diffA-B.txt

@@ -34,6 +34,7 @@
       {-(PredefinedType)-})-}
     {-(Identifier)-}
     {-(RequiredParameter
+      {-(Empty)-}
       {-(Empty)-}
       {-(Annotation
         {-(PredefinedType)-})-}
@@ -49,6 +50,7 @@
         {-(PredefinedType)-})-}
       {-(Identifier)-}
       {-(RequiredParameter
+        {-(Empty)-}
         {-(Empty)-}
         {-(Annotation
           {-(PredefinedType)-})-}
@@ -105,6 +107,7 @@
         (Empty)
         (Identifier)
         (RequiredParameter
+          (Empty)
           (Empty)
           (Annotation
             (PredefinedType))

test/fixtures/typescript/ambient-declarations.diffB-A.txt

@@ -23,6 +23,7 @@
       {+(PredefinedType)+})+}
     {+(Identifier)+}
     {+(RequiredParameter
+      {+(Empty)+}
       {+(Empty)+}
       {+(Annotation
         {+(PredefinedType)+})+}
@@ -38,6 +39,7 @@
         {+(PredefinedType)+})+}
       {+(Identifier)+}
       {+(RequiredParameter
+        {+(Empty)+}
         {+(Empty)+}
         {+(Annotation
           {+(PredefinedType)+})+}
@@ -106,6 +108,7 @@
         (Empty)
         (Identifier)
         (RequiredParameter
+          (Empty)
           (Empty)
           (Annotation
             (PredefinedType))

test/fixtures/typescript/ambient-declarations.parseA.txt

@@ -23,6 +23,7 @@
         (PredefinedType))
       (Identifier)
       (RequiredParameter
+        (Empty)
         (Empty)
         (Annotation
           (PredefinedType))
@@ -38,6 +39,7 @@
           (PredefinedType))
         (Identifier)
         (RequiredParameter
+          (Empty)
           (Empty)
           (Annotation
             (PredefinedType))
@@ -94,6 +96,7 @@
         (Empty)
         (Identifier)
         (RequiredParameter
+          (Empty)
           (Empty)
           (Annotation
             (PredefinedType))

test/fixtures/typescript/ambient-declarations.parseB.txt

@@ -21,6 +21,7 @@
         (Empty)
         (Identifier)
         (RequiredParameter
+          (Empty)
           (Empty)
           (Annotation
             (PredefinedType))

test/fixtures/typescript/ambient-exports.diffA-B.txt

@@ -5,6 +5,7 @@
     {+(Empty)+}
     {+(Identifier)+}
     {+(RequiredParameter
+      {+(Empty)+}
       {+(Empty)+}
       {+(Annotation
         {+(PredefinedType)+})+}
@@ -12,6 +13,7 @@
         {+(Identifier)+}
         {+(Empty)+})+})+}
     {+(RequiredParameter
+      {+(Empty)+}
       {+(Empty)+}
       {+(Annotation
         {+(PredefinedType)+})+}

test/fixtures/typescript/ambient-exports.diffB-A.txt

@@ -7,6 +7,7 @@
     {-(Empty)-}
     {-(Identifier)-}
     {-(RequiredParameter
+      {-(Empty)-}
       {-(Empty)-}
       {-(Annotation
         {-(PredefinedType)-})-}
@@ -14,6 +15,7 @@
         {-(Identifier)-}
         {-(Empty)-})-})-}
     {-(RequiredParameter
+      {-(Empty)-}
       {-(Empty)-}
       {-(Annotation
         {-(PredefinedType)-})-}

test/fixtures/typescript/ambient-exports.parseB.txt

@@ -5,6 +5,7 @@
       (Empty)
       (Identifier)
       (RequiredParameter
+        (Empty)
         (Empty)
         (Annotation
           (PredefinedType))
@@ -12,6 +13,7 @@
           (Identifier)
           (Empty)))
       (RequiredParameter
+        (Empty)
         (Empty)
         (Annotation
           (PredefinedType))

test/fixtures/typescript/anonymous-function.diffA-B.txt

@@ -4,18 +4,21 @@
     (Empty)
     (Empty)
   {-(RequiredParameter
+    {-(Empty)-}
     {-(Empty)-}
     {-(Empty)-}
     {-(Assignment
       {-(Identifier)-}
       {-(Empty)-})-})-}
     (RequiredParameter
+      (Empty)
       (Empty)
       (Empty)
       (Assignment
         (Identifier)
         (Empty)))
   {+(RequiredParameter
+    {+(Empty)+}
     {+(Empty)+}
     {+(Empty)+}
     {+(Assignment

test/fixtures/typescript/anonymous-function.diffB-A.txt

@@ -4,6 +4,7 @@
     (Empty)
     (Empty)
     (RequiredParameter
+      (Empty)
       (Empty)
       (Empty)
       (Assignment
@@ -11,6 +12,7 @@
       ->(Identifier) }
         (Empty)))
     (RequiredParameter
+      (Empty)
       (Empty)
       (Empty)
       (Assignment

test/fixtures/typescript/anonymous-function.parseA.txt

@@ -4,12 +4,14 @@
     (Empty)
     (Empty)
     (RequiredParameter
+      (Empty)
       (Empty)
       (Empty)
       (Assignment
         (Identifier)
         (Empty)))
     (RequiredParameter
+      (Empty)
       (Empty)
       (Empty)
       (Assignment

test/fixtures/typescript/anonymous-function.parseB.txt

@@ -4,12 +4,14 @@
     (Empty)
     (Empty)
     (RequiredParameter
+      (Empty)
       (Empty)
       (Empty)
       (Assignment
         (Identifier)
         (Empty)))
     (RequiredParameter
+      (Empty)
       (Empty)
       (Empty)
       (Assignment

test/fixtures/typescript/arrow-function.diffA-B.txt

@@ -4,12 +4,14 @@
     (Empty)
     (Empty)
     (RequiredParameter
+      (Empty)
       (Empty)
       (Empty)
       (Assignment
         (Identifier)
         (Empty)))
     (RequiredParameter
+      (Empty)
       (Empty)
       (Empty)
       (Assignment

test/fixtures/typescript/arrow-function.diffB-A.txt

@@ -4,12 +4,14 @@
     (Empty)
     (Empty)
     (RequiredParameter
+      (Empty)
       (Empty)
       (Empty)
       (Assignment
         (Identifier)
         (Empty)))
     (RequiredParameter
+      (Empty)
       (Empty)
       (Empty)
       (Assignment

test/fixtures/typescript/arrow-function.parseA.txt

@@ -4,12 +4,14 @@
     (Empty)
     (Empty)
     (RequiredParameter
+      (Empty)
       (Empty)
       (Empty)
       (Assignment
         (Identifier)
         (Empty)))
     (RequiredParameter
+      (Empty)
       (Empty)
       (Empty)
       (Assignment

test/fixtures/typescript/arrow-function.parseB.txt

@@ -4,12 +4,14 @@
     (Empty)
     (Empty)
     (RequiredParameter
+      (Empty)
       (Empty)
       (Empty)
       (Assignment
         (Identifier)
         (Empty)))
     (RequiredParameter
+      (Empty)
       (Empty)
       (Empty)
       (Assignment

test/fixtures/typescript/chained-callbacks.diffA-B.txt

@@ -9,6 +9,7 @@
       (Empty)
       (Empty)
       (RequiredParameter
+        (Empty)
         (Empty)
         (Empty)
         (Assignment

test/fixtures/typescript/chained-callbacks.diffB-A.txt

@@ -9,6 +9,7 @@
       (Empty)
       (Empty)
       (RequiredParameter
+        (Empty)
         (Empty)
         (Empty)
         (Assignment

test/fixtures/typescript/chained-callbacks.parseA.txt

@@ -8,6 +8,7 @@
       (Empty)
       (Empty)
       (RequiredParameter
+        (Empty)
         (Empty)
         (Empty)
         (Assignment

test/fixtures/typescript/chained-callbacks.parseB.txt

@@ -8,6 +8,7 @@
       (Empty)
       (Empty)
       (RequiredParameter
+        (Empty)
         (Empty)
         (Empty)
         (Assignment

test/fixtures/typescript/class.diffA-B.txt

@@ -17,6 +17,7 @@
     {+(Empty)+}
     {+(Identifier)+}
     {+(RequiredParameter
+      {+(Empty)+}
       {+(Empty)+}
       {+(Empty)+}
       {+(Assignment
@@ -33,6 +34,7 @@
     {+(Empty)+}
     {+(Identifier)+}
     {+(RequiredParameter
+      {+(Empty)+}
       {+(Empty)+}
       {+(Empty)+}
       {+(Assignment
@@ -49,6 +51,7 @@
     {+(Empty)+}
     {+(Identifier)+}
     {+(RequiredParameter
+      {+(Empty)+}
       {+(Empty)+}
       {+(Empty)+}
       {+(Assignment
@@ -71,6 +74,7 @@
     {-(Empty)-}
     {-(Identifier)-}
     {-(RequiredParameter
+      {-(Empty)-}
       {-(Empty)-}
       {-(Empty)-}
       {-(Assignment
@@ -87,6 +91,7 @@
     {-(Empty)-}
     {-(Identifier)-}
     {-(RequiredParameter
+      {-(Empty)-}
       {-(Empty)-}
       {-(Empty)-}
       {-(Assignment
@@ -103,6 +108,7 @@
     {-(Empty)-}
     {-(Identifier)-}
     {-(RequiredParameter
+      {-(Empty)-}
       {-(Empty)-}
       {-(Empty)-}
       {-(Assignment

test/fixtures/typescript/class.diffB-A.txt

@@ -24,6 +24,7 @@
     { (Identifier)
     ->(Identifier) }
       (RequiredParameter
+        (Empty)
         (Empty)
         (Empty)
         (Assignment
@@ -41,6 +42,7 @@
     { (Identifier)
     ->(Identifier) }
       (RequiredParameter
+        (Empty)
         (Empty)
         (Empty)
         (Assignment
@@ -58,6 +60,7 @@
     { (Identifier)
     ->(Identifier) }
       (RequiredParameter
+        (Empty)
         (Empty)
         (Empty)
         (Assignment

test/fixtures/typescript/class.parseA.txt

@@ -20,6 +20,7 @@
       (Empty)
       (Identifier)
       (RequiredParameter
+        (Empty)
         (Empty)
         (Empty)
         (Assignment
@@ -36,6 +37,7 @@
       (Empty)
       (Identifier)
       (RequiredParameter
+        (Empty)
         (Empty)
         (Empty)
         (Assignment
@@ -52,6 +54,7 @@
       (Empty)
       (Identifier)
       (RequiredParameter
+        (Empty)
         (Empty)
         (Empty)
         (Assignment

test/fixtures/typescript/class.parseB.txt

@@ -14,6 +14,7 @@
       (Empty)
       (Identifier)
       (RequiredParameter
+        (Empty)
         (Empty)
         (Empty)
         (Assignment
@@ -30,6 +31,7 @@
       (Empty)
       (Identifier)
       (RequiredParameter
+        (Empty)
         (Empty)
         (Empty)
         (Assignment
@@ -46,6 +48,7 @@
       (Empty)
       (Identifier)
       (RequiredParameter
+        (Empty)
         (Empty)
         (Empty)
         (Assignment

test/fixtures/typescript/function-call-args.diffA-B.txt

@@ -9,18 +9,21 @@
       (Empty)
       (Empty)
     {-(RequiredParameter
+      {-(Empty)-}
       {-(Empty)-}
       {-(Empty)-}
       {-(Assignment
         {-(Identifier)-}
         {-(Empty)-})-})-}
       (RequiredParameter
+        (Empty)
         (Empty)
         (Empty)
         (Assignment
           (Identifier)
           (Empty)))
     {+(RequiredParameter
+      {+(Empty)+}
       {+(Empty)+}
       {+(Empty)+}
       {+(Assignment

test/fixtures/typescript/function-call-args.diffB-A.txt

@@ -9,6 +9,7 @@
       (Empty)
       (Empty)
       (RequiredParameter
+        (Empty)
         (Empty)
         (Empty)
         (Assignment
@@ -16,6 +17,7 @@
         ->(Identifier) }
           (Empty)))
       (RequiredParameter
+        (Empty)
         (Empty)
         (Empty)
         (Assignment

test/fixtures/typescript/function-call-args.parseA.txt

@@ -8,12 +8,14 @@
       (Empty)
       (Empty)
       (RequiredParameter
+        (Empty)
         (Empty)
         (Empty)
         (Assignment
           (Identifier)
           (Empty)))
       (RequiredParameter
+        (Empty)
         (Empty)
         (Empty)
         (Assignment

test/fixtures/typescript/function-call-args.parseB.txt

@@ -8,12 +8,14 @@
       (Empty)
       (Empty)
       (RequiredParameter
+        (Empty)
         (Empty)
         (Empty)
         (Assignment
           (Identifier)
           (Empty)))
       (RequiredParameter
+        (Empty)
         (Empty)
         (Empty)
         (Assignment