{-# LANGUAGE TypeOperators , DefaultSignatures , StandaloneDeriving , FlexibleContexts , FlexibleInstances , MultiParamTypeClasses , TypeFamilies , TemplateHaskell , OverloadedStrings , LambdaCase , ViewPatterns , ScopedTypeVariables #-} -- | A module for displaying the AST in a tree view. module Language.Haskell.Tools.Refactor.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 Language.Haskell.Tools.AST import Language.Haskell.Tools.AST.FromGHC import Language.Haskell.Tools.AnnTrf.RangeToRangeTemplate import Language.Haskell.Tools.AnnTrf.RangeTemplate import Language.Haskell.Tools.AnnTrf.SourceTemplate import Language.Haskell.Tools.Refactor.RangeDebug data DebugNode a = TreeNode { _nodeLabel :: String , _nodeSubtree :: TreeDebugNode a } | SimpleNode { _nodeLabel :: String , _nodeValue :: String } deriving Show data TreeDebugNode a = TreeDebugNode { _nodeName :: String , _nodeInfo :: a , _children :: [DebugNode a] } deriving Show makeReferences ''DebugNode makeReferences ''TreeDebugNode astDebug :: (InspectableName n, HasRange a, ASTDebug e a, a ~ (NodeInfo (SemanticInfo n) src)) => e a -> String astDebug ast = toList (astDebugToJson (astDebug' ast)) astDebugToJson :: (InspectableName n, HasRange a, a ~ (NodeInfo (SemanticInfo n) src)) => [DebugNode a] -> 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 :: (InspectableName n, HasRange a, a ~ (NodeInfo (SemanticInfo n) src)) => TreeDebugNode a -> Seq Char astDebugElemJson (TreeDebugNode name info children) = fromList "{ \"text\" : \"" >< fromList name >< fromList "\", \"state\" : { \"opened\" : true }, \"a_attr\" : { \"data-range\" : \"" >< fromList (shortShowSpan (getRange info)) >< fromList "\", \"data-elems\" : \"" >< foldl (><) Seq.empty dataElems >< fromList "\", \"data-sema\" : \"" >< fromList (showSema (info ^. semanticInfo)) >< fromList "\" }, \"children\" : " >< astDebugToJson children >< fromList " }" where dataElems = catMaybes (map (\case SimpleNode l v -> Just (fromList (formatScalarElem l v)); _ -> Nothing) children) formatScalarElem l v = "