{-# LANGUAGE TypeOperators , DefaultSignatures , StandaloneDeriving , FlexibleContexts , FlexibleInstances , MultiParamTypeClasses , TypeFamilies , TemplateHaskell , OverloadedStrings , ConstraintKinds , LambdaCase , ViewPatterns , ScopedTypeVariables , UndecidableInstances #-} -- | A module for displaying the AST in a tree view. module Language.Haskell.Tools.ASTDebug where import GHC.Generics import Control.Reference import Control.Applicative import Data.Sequence as Seq import Data.Foldable import Data.Maybe import Data.List as List import SrcLoc import Outputable import DynFlags as GHC import Name as GHC import Id as GHC import RdrName as GHC import Unique as GHC import Type as GHC import Language.Haskell.Tools.AST import Language.Haskell.Tools.AST.FromGHC import Language.Haskell.Tools.Transform --import Language.Haskell.Tools.Refactor.RangeDebug import Language.Haskell.Tools.AST.SemaInfoTypes data DebugNode dom = TreeNode { _nodeLabel :: String , _nodeSubtree :: TreeDebugNode dom } | SimpleNode { _nodeLabel :: String , _nodeValue :: String } deriving instance Domain dom => Show (DebugNode dom) data TreeDebugNode dom = TreeDebugNode { _nodeName :: String , _nodeInfo :: SemanticInfoType dom , _children :: [DebugNode dom] } deriving instance Domain dom => Show (TreeDebugNode dom) data SemanticInfoType dom = DefaultInfoType { semaInfoTypeRng :: SrcSpan } | NameInfoType { semaInfoTypeName :: SemanticInfo' dom SameInfoNameCls , semaInfoTypeRng :: SrcSpan } | ExprInfoType { semaInfoTypeExpr :: SemanticInfo' dom SameInfoExprCls , semaInfoTypeRng :: SrcSpan } | ImportInfoType { semaInfoTypeImport :: SemanticInfo' dom SameInfoImportCls , semaInfoTypeRng :: SrcSpan } | ModuleInfoType { semaInfoTypeModule :: SemanticInfo' dom SameInfoModuleCls , semaInfoTypeRng :: SrcSpan } | ImplicitFieldInfoType { semaInfoTypeImplicitFld :: SemanticInfo' dom SameInfoWildcardCls , semaInfoTypeRng :: SrcSpan } deriving instance Domain dom => Show (SemanticInfoType dom) makeReferences ''DebugNode makeReferences ''TreeDebugNode type AssocSema dom = ( AssocData (SemanticInfo' dom SameInfoModuleCls), AssocData (SemanticInfo' dom SameInfoImportCls) , AssocData (SemanticInfo' dom SameInfoNameCls), AssocData (SemanticInfo' dom SameInfoExprCls) , AssocData (SemanticInfo' dom SameInfoWildcardCls) ) astDebug :: (ASTDebug e dom st, AssocSema dom) => e dom st -> String astDebug ast = toList (astDebugToJson (astDebug' ast)) astDebugToJson :: AssocSema dom => [DebugNode dom] -> Seq Char astDebugToJson nodes = fromList "[ " >< childrenJson >< fromList " ]" where treeNodes = List.filter (\case TreeNode {} -> True; _ -> False) nodes childrenJson = case map debugTreeNode treeNodes of first:rest -> first >< foldl (><) Seq.empty (fmap (fromList ", " ><) (fromList rest)) [] -> Seq.empty debugTreeNode (TreeNode "" s) = astDebugElemJson s debugTreeNode (TreeNode (dropWhile (=='_') -> l) s) = astDebugElemJson (nodeName .- (("" ++ l ++ ": ") ++) $ s) astDebugElemJson :: AssocSema dom => TreeDebugNode dom -> Seq Char astDebugElemJson (TreeDebugNode name info children) = fromList "{ \"text\" : \"" >< fromList name >< fromList "\", \"state\" : { \"opened\" : true }, \"a_attr\" : { \"data-range\" : \"" >< fromList (shortShowSpan (semaInfoTypeRng info)) >< fromList "\", \"data-elems\" : \"" >< foldl (><) Seq.empty dataElems >< fromList "\", \"data-sema\" : \"" >< fromList (showSema info) >< fromList "\" }, \"children\" : " >< astDebugToJson children >< fromList " }" where dataElems = catMaybes (map (\case SimpleNode l v -> Just (fromList (formatScalarElem l v)); _ -> Nothing) children) formatScalarElem l v = "