{-# LANGUAGE Safe #-}
-- |
--
-- Functions for generic traversals across Futhark syntax trees.  The
-- motivation for this module came from dissatisfaction with rewriting
-- the same trivial tree recursions for every module.  A possible
-- alternative would be to use normal \"Scrap your
-- boilerplate\"-techniques, but these are rejected for two reasons:
--
--    * They are too slow.
--
--    * More importantly, they do not tell you whether you have missed
--      some cases.
--
-- Instead, this module defines various traversals of the Futhark syntax
-- tree.  The implementation is rather tedious, but the interface is
-- easy to use.
--
-- A traversal of the Futhark syntax tree is expressed as a record of
-- functions expressing the operations to be performed on the various
-- types of nodes.
--
-- The "Futhark.Transform.Rename" module is a simple example of how to
-- use this facility.
module Futhark.IR.Traversals
  (
  -- * Mapping
    Mapper(..)
  , identityMapper
  , mapExpM
  , mapExp
  , mapOnType

  -- * Walking
  , Walker(..)
  , identityWalker
  , walkExpM
  )
  where

import Control.Monad
import Control.Monad.Identity
import qualified Data.Traversable
import Data.Foldable (traverse_)

import Futhark.IR.Syntax
import Futhark.IR.Prop.Scope

-- | Express a monad mapping operation on a syntax node.  Each element
-- of this structure expresses the operation to be performed on a
-- given child.
data Mapper flore tlore m = Mapper {
    Mapper flore tlore m -> SubExp -> m SubExp
mapOnSubExp :: SubExp -> m SubExp
  , Mapper flore tlore m -> Scope tlore -> Body flore -> m (Body tlore)
mapOnBody :: Scope tlore -> Body flore -> m (Body tlore)
    -- ^ Most bodies are enclosed in a scope, which is passed along
    -- for convenience.
  , Mapper flore tlore m -> VName -> m VName
mapOnVName :: VName -> m VName
  , Mapper flore tlore m -> RetType flore -> m (RetType tlore)
mapOnRetType :: RetType flore -> m (RetType tlore)
  , Mapper flore tlore m -> BranchType flore -> m (BranchType tlore)
mapOnBranchType :: BranchType flore -> m (BranchType tlore)
  , Mapper flore tlore m -> FParam flore -> m (FParam tlore)
mapOnFParam :: FParam flore -> m (FParam tlore)
  , Mapper flore tlore m -> LParam flore -> m (LParam tlore)
mapOnLParam :: LParam flore -> m (LParam tlore)
  , Mapper flore tlore m -> Op flore -> m (Op tlore)
mapOnOp :: Op flore -> m (Op tlore)
  }

-- | A mapper that simply returns the tree verbatim.
identityMapper :: Monad m => Mapper lore lore m
identityMapper :: Mapper lore lore m
identityMapper = Mapper :: forall flore tlore (m :: * -> *).
(SubExp -> m SubExp)
-> (Scope tlore -> Body flore -> m (Body tlore))
-> (VName -> m VName)
-> (RetType flore -> m (RetType tlore))
-> (BranchType flore -> m (BranchType tlore))
-> (FParam flore -> m (FParam tlore))
-> (LParam flore -> m (LParam tlore))
-> (Op flore -> m (Op tlore))
-> Mapper flore tlore m
Mapper {
                   mapOnSubExp :: SubExp -> m SubExp
mapOnSubExp = SubExp -> m SubExp
forall (m :: * -> *) a. Monad m => a -> m a
return
                 , mapOnBody :: Scope lore -> Body lore -> m (Body lore)
mapOnBody = (Body lore -> m (Body lore))
-> Scope lore -> Body lore -> m (Body lore)
forall a b. a -> b -> a
const Body lore -> m (Body lore)
forall (m :: * -> *) a. Monad m => a -> m a
return
                 , mapOnVName :: VName -> m VName
mapOnVName = VName -> m VName
forall (m :: * -> *) a. Monad m => a -> m a
return
                 , mapOnRetType :: RetType lore -> m (RetType lore)
mapOnRetType = RetType lore -> m (RetType lore)
forall (m :: * -> *) a. Monad m => a -> m a
return
                 , mapOnBranchType :: BranchType lore -> m (BranchType lore)
mapOnBranchType = BranchType lore -> m (BranchType lore)
forall (m :: * -> *) a. Monad m => a -> m a
return
                 , mapOnFParam :: FParam lore -> m (FParam lore)
mapOnFParam = FParam lore -> m (FParam lore)
forall (m :: * -> *) a. Monad m => a -> m a
return
                 , mapOnLParam :: LParam lore -> m (LParam lore)
mapOnLParam = LParam lore -> m (LParam lore)
forall (m :: * -> *) a. Monad m => a -> m a
return
                 , mapOnOp :: Op lore -> m (Op lore)
mapOnOp = Op lore -> m (Op lore)
forall (m :: * -> *) a. Monad m => a -> m a
return
                 }

-- | Map a monadic action across the immediate children of an
-- expression.  Importantly, the mapping does not descend recursively
-- into subexpressions.  The mapping is done left-to-right.
mapExpM :: (Applicative m, Monad m) =>
           Mapper flore tlore m -> Exp flore -> m (Exp tlore)
mapExpM :: Mapper flore tlore m -> Exp flore -> m (Exp tlore)
mapExpM Mapper flore tlore m
tv (BasicOp (SubExp SubExp
se)) =
  BasicOp -> Exp tlore
forall lore. BasicOp -> ExpT lore
BasicOp (BasicOp -> Exp tlore) -> m BasicOp -> m (Exp tlore)
forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
<$> (SubExp -> BasicOp
SubExp (SubExp -> BasicOp) -> m SubExp -> m BasicOp
forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
<$> Mapper flore tlore m -> SubExp -> m SubExp
forall flore tlore (m :: * -> *).
Mapper flore tlore m -> SubExp -> m SubExp
mapOnSubExp Mapper flore tlore m
tv SubExp
se)
mapExpM Mapper flore tlore m
tv (BasicOp (ArrayLit [SubExp]
els Type
rowt)) =
  BasicOp -> Exp tlore
forall lore. BasicOp -> ExpT lore
BasicOp (BasicOp -> Exp tlore) -> m BasicOp -> m (Exp tlore)
forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
<$> ([SubExp] -> Type -> BasicOp
ArrayLit ([SubExp] -> Type -> BasicOp) -> m [SubExp] -> m (Type -> BasicOp)
forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
<$> (SubExp -> m SubExp) -> [SubExp] -> m [SubExp]
forall (t :: * -> *) (m :: * -> *) a b.
(Traversable t, Monad m) =>
(a -> m b) -> t a -> m (t b)
mapM (Mapper flore tlore m -> SubExp -> m SubExp
forall flore tlore (m :: * -> *).
Mapper flore tlore m -> SubExp -> m SubExp
mapOnSubExp Mapper flore tlore m
tv) [SubExp]
els m (Type -> BasicOp) -> m Type -> m BasicOp
forall (f :: * -> *) a b. Applicative f => f (a -> b) -> f a -> f b
<*>
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forall (m :: * -> *).
Monad m =>
(SubExp -> m SubExp) -> Type -> m Type
mapOnType (Mapper flore tlore m -> SubExp -> m SubExp
forall flore tlore (m :: * -> *).
Mapper flore tlore m -> SubExp -> m SubExp
mapOnSubExp Mapper flore tlore m
tv) Type
rowt)
mapExpM Mapper flore tlore m
tv (BasicOp (BinOp BinOp
bop SubExp
x SubExp
y)) =
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forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
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BinOp BinOp
bop (SubExp -> SubExp -> BasicOp) -> m SubExp -> m (SubExp -> BasicOp)
forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
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mapOnSubExp Mapper flore tlore m
tv SubExp
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forall flore tlore (m :: * -> *).
Mapper flore tlore m -> SubExp -> m SubExp
mapOnSubExp Mapper flore tlore m
tv SubExp
y)
mapExpM Mapper flore tlore m
tv (BasicOp (CmpOp CmpOp
op SubExp
x SubExp
y)) =
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forall lore. BasicOp -> ExpT lore
BasicOp (BasicOp -> Exp tlore) -> m BasicOp -> m (Exp tlore)
forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
<$> (CmpOp -> SubExp -> SubExp -> BasicOp
CmpOp CmpOp
op (SubExp -> SubExp -> BasicOp) -> m SubExp -> m (SubExp -> BasicOp)
forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
<$> Mapper flore tlore m -> SubExp -> m SubExp
forall flore tlore (m :: * -> *).
Mapper flore tlore m -> SubExp -> m SubExp
mapOnSubExp Mapper flore tlore m
tv SubExp
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forall (f :: * -> *) a b. Applicative f => f (a -> b) -> f a -> f b
<*> Mapper flore tlore m -> SubExp -> m SubExp
forall flore tlore (m :: * -> *).
Mapper flore tlore m -> SubExp -> m SubExp
mapOnSubExp Mapper flore tlore m
tv SubExp
y)
mapExpM Mapper flore tlore m
tv (BasicOp (ConvOp ConvOp
conv SubExp
x)) =
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forall lore. BasicOp -> ExpT lore
BasicOp (BasicOp -> Exp tlore) -> m BasicOp -> m (Exp tlore)
forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
<$> (ConvOp -> SubExp -> BasicOp
ConvOp ConvOp
conv (SubExp -> BasicOp) -> m SubExp -> m BasicOp
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forall flore tlore (m :: * -> *).
Mapper flore tlore m -> SubExp -> m SubExp
mapOnSubExp Mapper flore tlore m
tv SubExp
x)
mapExpM Mapper flore tlore m
tv (BasicOp (UnOp UnOp
op SubExp
x)) =
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forall lore. BasicOp -> ExpT lore
BasicOp (BasicOp -> Exp tlore) -> m BasicOp -> m (Exp tlore)
forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
<$> (UnOp -> SubExp -> BasicOp
UnOp UnOp
op (SubExp -> BasicOp) -> m SubExp -> m BasicOp
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mapOnSubExp Mapper flore tlore m
tv SubExp
x)
mapExpM Mapper flore tlore m
tv (If SubExp
c BodyT flore
texp BodyT flore
fexp (IfDec [BranchType flore]
ts IfSort
s)) =
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SubExp
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mapOnSubExp Mapper flore tlore m
tv SubExp
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mapOnBody Mapper flore tlore m
tv Scope tlore
forall a. Monoid a => a
mempty BodyT flore
texp m (BodyT tlore -> IfDec (BranchType tlore) -> Exp tlore)
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tv Scope tlore
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forall rt. [rt] -> IfSort -> IfDec rt
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mapM (Mapper flore tlore m -> BranchType flore -> m (BranchType tlore)
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Mapper flore tlore m -> BranchType flore -> m (BranchType tlore)
mapOnBranchType Mapper flore tlore m
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pure IfSort
s)
mapExpM Mapper flore tlore m
tv (Apply Name
fname [(SubExp, Diet)]
args [RetType flore]
ret (Safety, SrcLoc, [SrcLoc])
loc) = do
  [(SubExp, Diet)]
args' <- [(SubExp, Diet)]
-> ((SubExp, Diet) -> m (SubExp, Diet)) -> m [(SubExp, Diet)]
forall (t :: * -> *) (m :: * -> *) a b.
(Traversable t, Monad m) =>
t a -> (a -> m b) -> m (t b)
forM [(SubExp, Diet)]
args (((SubExp, Diet) -> m (SubExp, Diet)) -> m [(SubExp, Diet)])
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forall a b. (a -> b) -> a -> b
$ \(SubExp
arg, Diet
d) ->
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-> m SubExp -> m (Diet -> (SubExp, Diet))
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<$> Mapper flore tlore m -> SubExp -> m SubExp
forall flore tlore (m :: * -> *).
Mapper flore tlore m -> SubExp -> m SubExp
mapOnSubExp Mapper flore tlore m
tv SubExp
arg m (Diet -> (SubExp, Diet)) -> m Diet -> m (SubExp, Diet)
forall (f :: * -> *) a b. Applicative f => f (a -> b) -> f a -> f b
<*> Diet -> m Diet
forall (f :: * -> *) a. Applicative f => a -> f a
pure Diet
d
  Name
-> [(SubExp, Diet)]
-> [RetType tlore]
-> (Safety, SrcLoc, [SrcLoc])
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Name
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Apply Name
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mapM (Mapper flore tlore m -> RetType flore -> m (RetType tlore)
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Mapper flore tlore m -> RetType flore -> m (RetType tlore)
mapOnRetType Mapper flore tlore m
tv) [RetType flore]
ret m ((Safety, SrcLoc, [SrcLoc]) -> Exp tlore)
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forall (f :: * -> *) a. Applicative f => a -> f a
pure (Safety, SrcLoc, [SrcLoc])
loc
mapExpM Mapper flore tlore m
tv (BasicOp (Index VName
arr Slice SubExp
slice)) =
  BasicOp -> Exp tlore
forall lore. BasicOp -> ExpT lore
BasicOp (BasicOp -> Exp tlore) -> m BasicOp -> m (Exp tlore)
forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
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Index (VName -> Slice SubExp -> BasicOp)
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Mapper flore tlore m -> VName -> m VName
mapOnVName Mapper flore tlore m
tv VName
arr m (Slice SubExp -> BasicOp) -> m (Slice SubExp) -> m BasicOp
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<*>
               (DimIndex SubExp -> m (DimIndex SubExp))
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mapM ((SubExp -> m SubExp) -> DimIndex SubExp -> m (DimIndex SubExp)
forall (t :: * -> *) (f :: * -> *) a b.
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traverse (Mapper flore tlore m -> SubExp -> m SubExp
forall flore tlore (m :: * -> *).
Mapper flore tlore m -> SubExp -> m SubExp
mapOnSubExp Mapper flore tlore m
tv)) Slice SubExp
slice)
mapExpM Mapper flore tlore m
tv (BasicOp (Update VName
arr Slice SubExp
slice SubExp
se)) =
  BasicOp -> Exp tlore
forall lore. BasicOp -> ExpT lore
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forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
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mapOnVName Mapper flore tlore m
tv VName
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<*>
               (DimIndex SubExp -> m (DimIndex SubExp))
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traverse (Mapper flore tlore m -> SubExp -> m SubExp
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tv)) Slice SubExp
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forall flore tlore (m :: * -> *).
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mapOnSubExp Mapper flore tlore m
tv SubExp
se)
mapExpM Mapper flore tlore m
tv (BasicOp (Iota SubExp
n SubExp
x SubExp
s IntType
et)) =
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mapOnSubExp Mapper flore tlore m
tv SubExp
n m (SubExp -> SubExp -> IntType -> BasicOp)
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forall flore tlore (m :: * -> *).
Mapper flore tlore m -> SubExp -> m SubExp
mapOnSubExp Mapper flore tlore m
tv SubExp
x m (SubExp -> IntType -> BasicOp)
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Mapper flore tlore m -> SubExp -> m SubExp
mapOnSubExp Mapper flore tlore m
tv SubExp
s m (IntType -> BasicOp) -> m IntType -> m BasicOp
forall (f :: * -> *) a b. Applicative f => f (a -> b) -> f a -> f b
<*> IntType -> m IntType
forall (f :: * -> *) a. Applicative f => a -> f a
pure IntType
et)
mapExpM Mapper flore tlore m
tv (BasicOp (Replicate Shape
shape SubExp
vexp)) =
  BasicOp -> Exp tlore
forall lore. BasicOp -> ExpT lore
BasicOp (BasicOp -> Exp tlore) -> m BasicOp -> m (Exp tlore)
forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
<$> (Shape -> SubExp -> BasicOp
Replicate (Shape -> SubExp -> BasicOp) -> m Shape -> m (SubExp -> BasicOp)
forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
<$> Mapper flore tlore m -> Shape -> m Shape
forall (m :: * -> *) flore tlore.
Monad m =>
Mapper flore tlore m -> Shape -> m Shape
mapOnShape Mapper flore tlore m
tv Shape
shape m (SubExp -> BasicOp) -> m SubExp -> m BasicOp
forall (f :: * -> *) a b. Applicative f => f (a -> b) -> f a -> f b
<*> Mapper flore tlore m -> SubExp -> m SubExp
forall flore tlore (m :: * -> *).
Mapper flore tlore m -> SubExp -> m SubExp
mapOnSubExp Mapper flore tlore m
tv SubExp
vexp)
mapExpM Mapper flore tlore m
tv (BasicOp (Scratch PrimType
t [SubExp]
shape)) =
  BasicOp -> Exp tlore
forall lore. BasicOp -> ExpT lore
BasicOp (BasicOp -> Exp tlore) -> m BasicOp -> m (Exp tlore)
forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
<$> (PrimType -> [SubExp] -> BasicOp
Scratch PrimType
t ([SubExp] -> BasicOp) -> m [SubExp] -> m BasicOp
forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
<$> (SubExp -> m SubExp) -> [SubExp] -> m [SubExp]
forall (t :: * -> *) (m :: * -> *) a b.
(Traversable t, Monad m) =>
(a -> m b) -> t a -> m (t b)
mapM (Mapper flore tlore m -> SubExp -> m SubExp
forall flore tlore (m :: * -> *).
Mapper flore tlore m -> SubExp -> m SubExp
mapOnSubExp Mapper flore tlore m
tv) [SubExp]
shape)
mapExpM Mapper flore tlore m
tv (BasicOp (Reshape ShapeChange SubExp
shape VName
arrexp)) =
  BasicOp -> Exp tlore
forall lore. BasicOp -> ExpT lore
BasicOp (BasicOp -> Exp tlore) -> m BasicOp -> m (Exp tlore)
forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
<$> (ShapeChange SubExp -> VName -> BasicOp
Reshape (ShapeChange SubExp -> VName -> BasicOp)
-> m (ShapeChange SubExp) -> m (VName -> BasicOp)
forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
<$>
               (DimChange SubExp -> m (DimChange SubExp))
-> ShapeChange SubExp -> m (ShapeChange SubExp)
forall (t :: * -> *) (m :: * -> *) a b.
(Traversable t, Monad m) =>
(a -> m b) -> t a -> m (t b)
mapM ((SubExp -> m SubExp) -> DimChange SubExp -> m (DimChange SubExp)
forall (t :: * -> *) (f :: * -> *) a b.
(Traversable t, Applicative f) =>
(a -> f b) -> t a -> f (t b)
Data.Traversable.traverse (Mapper flore tlore m -> SubExp -> m SubExp
forall flore tlore (m :: * -> *).
Mapper flore tlore m -> SubExp -> m SubExp
mapOnSubExp Mapper flore tlore m
tv)) ShapeChange SubExp
shape m (VName -> BasicOp) -> m VName -> m BasicOp
forall (f :: * -> *) a b. Applicative f => f (a -> b) -> f a -> f b
<*>
               Mapper flore tlore m -> VName -> m VName
forall flore tlore (m :: * -> *).
Mapper flore tlore m -> VName -> m VName
mapOnVName Mapper flore tlore m
tv VName
arrexp)
mapExpM Mapper flore tlore m
tv (BasicOp (Rearrange [Int]
perm VName
e)) =
  BasicOp -> Exp tlore
forall lore. BasicOp -> ExpT lore
BasicOp (BasicOp -> Exp tlore) -> m BasicOp -> m (Exp tlore)
forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
<$> ([Int] -> VName -> BasicOp
Rearrange [Int]
perm (VName -> BasicOp) -> m VName -> m BasicOp
forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
<$> Mapper flore tlore m -> VName -> m VName
forall flore tlore (m :: * -> *).
Mapper flore tlore m -> VName -> m VName
mapOnVName Mapper flore tlore m
tv VName
e)
mapExpM Mapper flore tlore m
tv (BasicOp (Rotate [SubExp]
es VName
e)) =
  BasicOp -> Exp tlore
forall lore. BasicOp -> ExpT lore
BasicOp (BasicOp -> Exp tlore) -> m BasicOp -> m (Exp tlore)
forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
<$> ([SubExp] -> VName -> BasicOp
Rotate ([SubExp] -> VName -> BasicOp)
-> m [SubExp] -> m (VName -> BasicOp)
forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
<$> (SubExp -> m SubExp) -> [SubExp] -> m [SubExp]
forall (t :: * -> *) (m :: * -> *) a b.
(Traversable t, Monad m) =>
(a -> m b) -> t a -> m (t b)
mapM (Mapper flore tlore m -> SubExp -> m SubExp
forall flore tlore (m :: * -> *).
Mapper flore tlore m -> SubExp -> m SubExp
mapOnSubExp Mapper flore tlore m
tv) [SubExp]
es m (VName -> BasicOp) -> m VName -> m BasicOp
forall (f :: * -> *) a b. Applicative f => f (a -> b) -> f a -> f b
<*> Mapper flore tlore m -> VName -> m VName
forall flore tlore (m :: * -> *).
Mapper flore tlore m -> VName -> m VName
mapOnVName Mapper flore tlore m
tv VName
e)
mapExpM Mapper flore tlore m
tv (BasicOp (Concat Int
i VName
x [VName]
ys SubExp
size)) =
  BasicOp -> Exp tlore
forall lore. BasicOp -> ExpT lore
BasicOp (BasicOp -> Exp tlore) -> m BasicOp -> m (Exp tlore)
forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
<$> (Int -> VName -> [VName] -> SubExp -> BasicOp
Concat Int
i (VName -> [VName] -> SubExp -> BasicOp)
-> m VName -> m ([VName] -> SubExp -> BasicOp)
forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
<$>
               Mapper flore tlore m -> VName -> m VName
forall flore tlore (m :: * -> *).
Mapper flore tlore m -> VName -> m VName
mapOnVName Mapper flore tlore m
tv VName
x m ([VName] -> SubExp -> BasicOp)
-> m [VName] -> m (SubExp -> BasicOp)
forall (f :: * -> *) a b. Applicative f => f (a -> b) -> f a -> f b
<*> (VName -> m VName) -> [VName] -> m [VName]
forall (t :: * -> *) (m :: * -> *) a b.
(Traversable t, Monad m) =>
(a -> m b) -> t a -> m (t b)
mapM (Mapper flore tlore m -> VName -> m VName
forall flore tlore (m :: * -> *).
Mapper flore tlore m -> VName -> m VName
mapOnVName Mapper flore tlore m
tv) [VName]
ys m (SubExp -> BasicOp) -> m SubExp -> m BasicOp
forall (f :: * -> *) a b. Applicative f => f (a -> b) -> f a -> f b
<*>
               Mapper flore tlore m -> SubExp -> m SubExp
forall flore tlore (m :: * -> *).
Mapper flore tlore m -> SubExp -> m SubExp
mapOnSubExp Mapper flore tlore m
tv SubExp
size)
mapExpM Mapper flore tlore m
tv (BasicOp (Copy VName
e)) =
  BasicOp -> Exp tlore
forall lore. BasicOp -> ExpT lore
BasicOp (BasicOp -> Exp tlore) -> m BasicOp -> m (Exp tlore)
forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
<$> (VName -> BasicOp
Copy (VName -> BasicOp) -> m VName -> m BasicOp
forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
<$> Mapper flore tlore m -> VName -> m VName
forall flore tlore (m :: * -> *).
Mapper flore tlore m -> VName -> m VName
mapOnVName Mapper flore tlore m
tv VName
e)
mapExpM Mapper flore tlore m
tv (BasicOp (Manifest [Int]
perm VName
e)) =
  BasicOp -> Exp tlore
forall lore. BasicOp -> ExpT lore
BasicOp (BasicOp -> Exp tlore) -> m BasicOp -> m (Exp tlore)
forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
<$> ([Int] -> VName -> BasicOp
Manifest [Int]
perm (VName -> BasicOp) -> m VName -> m BasicOp
forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
<$> Mapper flore tlore m -> VName -> m VName
forall flore tlore (m :: * -> *).
Mapper flore tlore m -> VName -> m VName
mapOnVName Mapper flore tlore m
tv VName
e)
mapExpM Mapper flore tlore m
tv (BasicOp (Assert SubExp
e ErrorMsg SubExp
msg (SrcLoc, [SrcLoc])
loc)) =
  BasicOp -> Exp tlore
forall lore. BasicOp -> ExpT lore
BasicOp (BasicOp -> Exp tlore) -> m BasicOp -> m (Exp tlore)
forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
<$> (SubExp -> ErrorMsg SubExp -> (SrcLoc, [SrcLoc]) -> BasicOp
Assert (SubExp -> ErrorMsg SubExp -> (SrcLoc, [SrcLoc]) -> BasicOp)
-> m SubExp -> m (ErrorMsg SubExp -> (SrcLoc, [SrcLoc]) -> BasicOp)
forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
<$> Mapper flore tlore m -> SubExp -> m SubExp
forall flore tlore (m :: * -> *).
Mapper flore tlore m -> SubExp -> m SubExp
mapOnSubExp Mapper flore tlore m
tv SubExp
e m (ErrorMsg SubExp -> (SrcLoc, [SrcLoc]) -> BasicOp)
-> m (ErrorMsg SubExp) -> m ((SrcLoc, [SrcLoc]) -> BasicOp)
forall (f :: * -> *) a b. Applicative f => f (a -> b) -> f a -> f b
<*> (SubExp -> m SubExp) -> ErrorMsg SubExp -> m (ErrorMsg SubExp)
forall (t :: * -> *) (f :: * -> *) a b.
(Traversable t, Applicative f) =>
(a -> f b) -> t a -> f (t b)
traverse (Mapper flore tlore m -> SubExp -> m SubExp
forall flore tlore (m :: * -> *).
Mapper flore tlore m -> SubExp -> m SubExp
mapOnSubExp Mapper flore tlore m
tv) ErrorMsg SubExp
msg m ((SrcLoc, [SrcLoc]) -> BasicOp)
-> m (SrcLoc, [SrcLoc]) -> m BasicOp
forall (f :: * -> *) a b. Applicative f => f (a -> b) -> f a -> f b
<*> (SrcLoc, [SrcLoc]) -> m (SrcLoc, [SrcLoc])
forall (f :: * -> *) a. Applicative f => a -> f a
pure (SrcLoc, [SrcLoc])
loc)
mapExpM Mapper flore tlore m
tv (BasicOp (Opaque SubExp
e)) =
  BasicOp -> Exp tlore
forall lore. BasicOp -> ExpT lore
BasicOp (BasicOp -> Exp tlore) -> m BasicOp -> m (Exp tlore)
forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
<$> (SubExp -> BasicOp
Opaque (SubExp -> BasicOp) -> m SubExp -> m BasicOp
forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
<$> Mapper flore tlore m -> SubExp -> m SubExp
forall flore tlore (m :: * -> *).
Mapper flore tlore m -> SubExp -> m SubExp
mapOnSubExp Mapper flore tlore m
tv SubExp
e)
mapExpM Mapper flore tlore m
tv (DoLoop [(FParam flore, SubExp)]
ctxmerge [(FParam flore, SubExp)]
valmerge LoopForm flore
form BodyT flore
loopbody) = do
  [Param (FParamInfo tlore)]
ctxparams' <- (FParam flore -> m (Param (FParamInfo tlore)))
-> [FParam flore] -> m [Param (FParamInfo tlore)]
forall (t :: * -> *) (m :: * -> *) a b.
(Traversable t, Monad m) =>
(a -> m b) -> t a -> m (t b)
mapM (Mapper flore tlore m
-> FParam flore -> m (Param (FParamInfo tlore))
forall flore tlore (m :: * -> *).
Mapper flore tlore m -> FParam flore -> m (FParam tlore)
mapOnFParam Mapper flore tlore m
tv) [FParam flore]
ctxparams
  [Param (FParamInfo tlore)]
valparams' <- (FParam flore -> m (Param (FParamInfo tlore)))
-> [FParam flore] -> m [Param (FParamInfo tlore)]
forall (t :: * -> *) (m :: * -> *) a b.
(Traversable t, Monad m) =>
(a -> m b) -> t a -> m (t b)
mapM (Mapper flore tlore m
-> FParam flore -> m (Param (FParamInfo tlore))
forall flore tlore (m :: * -> *).
Mapper flore tlore m -> FParam flore -> m (FParam tlore)
mapOnFParam Mapper flore tlore m
tv) [FParam flore]
valparams
  LoopForm tlore
form' <- Mapper flore tlore m -> LoopForm flore -> m (LoopForm tlore)
forall (m :: * -> *) flore tlore.
Monad m =>
Mapper flore tlore m -> LoopForm flore -> m (LoopForm tlore)
mapOnLoopForm Mapper flore tlore m
tv LoopForm flore
form
  let scope :: Scope tlore
scope = LoopForm tlore -> Scope tlore
forall lore a. Scoped lore a => a -> Scope lore
scopeOf LoopForm tlore
form' Scope tlore -> Scope tlore -> Scope tlore
forall a. Semigroup a => a -> a -> a
<> [Param (FParamInfo tlore)] -> Scope tlore
forall lore dec.
(FParamInfo lore ~ dec) =>
[Param dec] -> Scope lore
scopeOfFParams ([Param (FParamInfo tlore)]
ctxparams'[Param (FParamInfo tlore)]
-> [Param (FParamInfo tlore)] -> [Param (FParamInfo tlore)]
forall a. [a] -> [a] -> [a]
++[Param (FParamInfo tlore)]
valparams')
  [(Param (FParamInfo tlore), SubExp)]
-> [(Param (FParamInfo tlore), SubExp)]
-> LoopForm tlore
-> BodyT tlore
-> Exp tlore
forall lore.
[(FParam lore, SubExp)]
-> [(FParam lore, SubExp)]
-> LoopForm lore
-> BodyT lore
-> ExpT lore
DoLoop ([(Param (FParamInfo tlore), SubExp)]
 -> [(Param (FParamInfo tlore), SubExp)]
 -> LoopForm tlore
 -> BodyT tlore
 -> Exp tlore)
-> m [(Param (FParamInfo tlore), SubExp)]
-> m ([(Param (FParamInfo tlore), SubExp)]
      -> LoopForm tlore -> BodyT tlore -> Exp tlore)
forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
<$>
    ([Param (FParamInfo tlore)]
-> [SubExp] -> [(Param (FParamInfo tlore), SubExp)]
forall a b. [a] -> [b] -> [(a, b)]
zip [Param (FParamInfo tlore)]
ctxparams' ([SubExp] -> [(Param (FParamInfo tlore), SubExp)])
-> m [SubExp] -> m [(Param (FParamInfo tlore), SubExp)]
forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
<$> (SubExp -> m SubExp) -> [SubExp] -> m [SubExp]
forall (t :: * -> *) (m :: * -> *) a b.
(Traversable t, Monad m) =>
(a -> m b) -> t a -> m (t b)
mapM (Mapper flore tlore m -> SubExp -> m SubExp
forall flore tlore (m :: * -> *).
Mapper flore tlore m -> SubExp -> m SubExp
mapOnSubExp Mapper flore tlore m
tv) [SubExp]
ctxinits) m ([(Param (FParamInfo tlore), SubExp)]
   -> LoopForm tlore -> BodyT tlore -> Exp tlore)
-> m [(Param (FParamInfo tlore), SubExp)]
-> m (LoopForm tlore -> BodyT tlore -> Exp tlore)
forall (f :: * -> *) a b. Applicative f => f (a -> b) -> f a -> f b
<*>
    ([Param (FParamInfo tlore)]
-> [SubExp] -> [(Param (FParamInfo tlore), SubExp)]
forall a b. [a] -> [b] -> [(a, b)]
zip [Param (FParamInfo tlore)]
valparams' ([SubExp] -> [(Param (FParamInfo tlore), SubExp)])
-> m [SubExp] -> m [(Param (FParamInfo tlore), SubExp)]
forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
<$> (SubExp -> m SubExp) -> [SubExp] -> m [SubExp]
forall (t :: * -> *) (m :: * -> *) a b.
(Traversable t, Monad m) =>
(a -> m b) -> t a -> m (t b)
mapM (Mapper flore tlore m -> SubExp -> m SubExp
forall flore tlore (m :: * -> *).
Mapper flore tlore m -> SubExp -> m SubExp
mapOnSubExp Mapper flore tlore m
tv) [SubExp]
valinits) m (LoopForm tlore -> BodyT tlore -> Exp tlore)
-> m (LoopForm tlore) -> m (BodyT tlore -> Exp tlore)
forall (f :: * -> *) a b. Applicative f => f (a -> b) -> f a -> f b
<*>
    LoopForm tlore -> m (LoopForm tlore)
forall (f :: * -> *) a. Applicative f => a -> f a
pure LoopForm tlore
form' m (BodyT tlore -> Exp tlore) -> m (BodyT tlore) -> m (Exp tlore)
forall (f :: * -> *) a b. Applicative f => f (a -> b) -> f a -> f b
<*> Mapper flore tlore m
-> Scope tlore -> BodyT flore -> m (BodyT tlore)
forall flore tlore (m :: * -> *).
Mapper flore tlore m -> Scope tlore -> Body flore -> m (Body tlore)
mapOnBody Mapper flore tlore m
tv Scope tlore
scope BodyT flore
loopbody
  where ([FParam flore]
ctxparams,[SubExp]
ctxinits) = [(FParam flore, SubExp)] -> ([FParam flore], [SubExp])
forall a b. [(a, b)] -> ([a], [b])
unzip [(FParam flore, SubExp)]
ctxmerge
        ([FParam flore]
valparams,[SubExp]
valinits) = [(FParam flore, SubExp)] -> ([FParam flore], [SubExp])
forall a b. [(a, b)] -> ([a], [b])
unzip [(FParam flore, SubExp)]
valmerge
mapExpM Mapper flore tlore m
tv (Op Op flore
op) =
  Op tlore -> Exp tlore
forall lore. Op lore -> ExpT lore
Op (Op tlore -> Exp tlore) -> m (Op tlore) -> m (Exp tlore)
forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
<$> Mapper flore tlore m -> Op flore -> m (Op tlore)
forall flore tlore (m :: * -> *).
Mapper flore tlore m -> Op flore -> m (Op tlore)
mapOnOp Mapper flore tlore m
tv Op flore
op

mapOnShape :: Monad m => Mapper flore tlore m -> Shape -> m Shape
mapOnShape :: Mapper flore tlore m -> Shape -> m Shape
mapOnShape Mapper flore tlore m
tv (Shape [SubExp]
ds) = [SubExp] -> Shape
forall d. [d] -> ShapeBase d
Shape ([SubExp] -> Shape) -> m [SubExp] -> m Shape
forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
<$> (SubExp -> m SubExp) -> [SubExp] -> m [SubExp]
forall (t :: * -> *) (m :: * -> *) a b.
(Traversable t, Monad m) =>
(a -> m b) -> t a -> m (t b)
mapM (Mapper flore tlore m -> SubExp -> m SubExp
forall flore tlore (m :: * -> *).
Mapper flore tlore m -> SubExp -> m SubExp
mapOnSubExp Mapper flore tlore m
tv) [SubExp]
ds

mapOnLoopForm :: Monad m =>
                 Mapper flore tlore m -> LoopForm flore -> m (LoopForm tlore)
mapOnLoopForm :: Mapper flore tlore m -> LoopForm flore -> m (LoopForm tlore)
mapOnLoopForm Mapper flore tlore m
tv (ForLoop VName
i IntType
it SubExp
bound [(LParam flore, VName)]
loop_vars) =
  VName
-> IntType -> SubExp -> [(LParam tlore, VName)] -> LoopForm tlore
forall lore.
VName
-> IntType -> SubExp -> [(LParam lore, VName)] -> LoopForm lore
ForLoop (VName
 -> IntType -> SubExp -> [(LParam tlore, VName)] -> LoopForm tlore)
-> m VName
-> m (IntType
      -> SubExp -> [(LParam tlore, VName)] -> LoopForm tlore)
forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
<$> Mapper flore tlore m -> VName -> m VName
forall flore tlore (m :: * -> *).
Mapper flore tlore m -> VName -> m VName
mapOnVName Mapper flore tlore m
tv VName
i m (IntType -> SubExp -> [(LParam tlore, VName)] -> LoopForm tlore)
-> m IntType
-> m (SubExp -> [(LParam tlore, VName)] -> LoopForm tlore)
forall (f :: * -> *) a b. Applicative f => f (a -> b) -> f a -> f b
<*> IntType -> m IntType
forall (f :: * -> *) a. Applicative f => a -> f a
pure IntType
it m (SubExp -> [(LParam tlore, VName)] -> LoopForm tlore)
-> m SubExp -> m ([(LParam tlore, VName)] -> LoopForm tlore)
forall (f :: * -> *) a b. Applicative f => f (a -> b) -> f a -> f b
<*> Mapper flore tlore m -> SubExp -> m SubExp
forall flore tlore (m :: * -> *).
Mapper flore tlore m -> SubExp -> m SubExp
mapOnSubExp Mapper flore tlore m
tv SubExp
bound m ([(LParam tlore, VName)] -> LoopForm tlore)
-> m [(LParam tlore, VName)] -> m (LoopForm tlore)
forall (f :: * -> *) a b. Applicative f => f (a -> b) -> f a -> f b
<*>
  ([LParam tlore] -> [VName] -> [(LParam tlore, VName)]
forall a b. [a] -> [b] -> [(a, b)]
zip ([LParam tlore] -> [VName] -> [(LParam tlore, VName)])
-> m [LParam tlore] -> m ([VName] -> [(LParam tlore, VName)])
forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
<$> (LParam flore -> m (LParam tlore))
-> [LParam flore] -> m [LParam tlore]
forall (t :: * -> *) (m :: * -> *) a b.
(Traversable t, Monad m) =>
(a -> m b) -> t a -> m (t b)
mapM (Mapper flore tlore m -> LParam flore -> m (LParam tlore)
forall flore tlore (m :: * -> *).
Mapper flore tlore m -> LParam flore -> m (LParam tlore)
mapOnLParam Mapper flore tlore m
tv) [LParam flore]
loop_lparams m ([VName] -> [(LParam tlore, VName)])
-> m [VName] -> m [(LParam tlore, VName)]
forall (f :: * -> *) a b. Applicative f => f (a -> b) -> f a -> f b
<*> (VName -> m VName) -> [VName] -> m [VName]
forall (t :: * -> *) (m :: * -> *) a b.
(Traversable t, Monad m) =>
(a -> m b) -> t a -> m (t b)
mapM (Mapper flore tlore m -> VName -> m VName
forall flore tlore (m :: * -> *).
Mapper flore tlore m -> VName -> m VName
mapOnVName Mapper flore tlore m
tv) [VName]
loop_arrs)
  where ([LParam flore]
loop_lparams,[VName]
loop_arrs) = [(LParam flore, VName)] -> ([LParam flore], [VName])
forall a b. [(a, b)] -> ([a], [b])
unzip [(LParam flore, VName)]
loop_vars
mapOnLoopForm Mapper flore tlore m
tv (WhileLoop VName
cond) =
  VName -> LoopForm tlore
forall lore. VName -> LoopForm lore
WhileLoop (VName -> LoopForm tlore) -> m VName -> m (LoopForm tlore)
forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
<$> Mapper flore tlore m -> VName -> m VName
forall flore tlore (m :: * -> *).
Mapper flore tlore m -> VName -> m VName
mapOnVName Mapper flore tlore m
tv VName
cond

-- | Like 'mapExpM', but in the 'Identity' monad.
mapExp :: Mapper flore tlore Identity -> Exp flore -> Exp tlore
mapExp :: Mapper flore tlore Identity -> Exp flore -> Exp tlore
mapExp Mapper flore tlore Identity
m = Identity (Exp tlore) -> Exp tlore
forall a. Identity a -> a
runIdentity (Identity (Exp tlore) -> Exp tlore)
-> (Exp flore -> Identity (Exp tlore)) -> Exp flore -> Exp tlore
forall b c a. (b -> c) -> (a -> b) -> a -> c
. Mapper flore tlore Identity -> Exp flore -> Identity (Exp tlore)
forall (m :: * -> *) flore tlore.
(Applicative m, Monad m) =>
Mapper flore tlore m -> Exp flore -> m (Exp tlore)
mapExpM Mapper flore tlore Identity
m

-- | Transform any t'SubExp's in the type.
mapOnType :: Monad m =>
             (SubExp -> m SubExp) -> Type -> m Type
mapOnType :: (SubExp -> m SubExp) -> Type -> m Type
mapOnType SubExp -> m SubExp
_ (Prim PrimType
bt) = Type -> m Type
forall (m :: * -> *) a. Monad m => a -> m a
return (Type -> m Type) -> Type -> m Type
forall a b. (a -> b) -> a -> b
$ PrimType -> Type
forall shape u. PrimType -> TypeBase shape u
Prim PrimType
bt
mapOnType SubExp -> m SubExp
_ (Mem Space
space) = Type -> m Type
forall (f :: * -> *) a. Applicative f => a -> f a
pure (Type -> m Type) -> Type -> m Type
forall a b. (a -> b) -> a -> b
$ Space -> Type
forall shape u. Space -> TypeBase shape u
Mem Space
space
mapOnType SubExp -> m SubExp
f (Array PrimType
bt Shape
shape NoUniqueness
u) =
  PrimType -> Shape -> NoUniqueness -> Type
forall shape u. PrimType -> shape -> u -> TypeBase shape u
Array PrimType
bt (Shape -> NoUniqueness -> Type)
-> m Shape -> m (NoUniqueness -> Type)
forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
<$> ([SubExp] -> Shape
forall d. [d] -> ShapeBase d
Shape ([SubExp] -> Shape) -> m [SubExp] -> m Shape
forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
<$> (SubExp -> m SubExp) -> [SubExp] -> m [SubExp]
forall (t :: * -> *) (m :: * -> *) a b.
(Traversable t, Monad m) =>
(a -> m b) -> t a -> m (t b)
mapM SubExp -> m SubExp
f (Shape -> [SubExp]
forall d. ShapeBase d -> [d]
shapeDims Shape
shape)) m (NoUniqueness -> Type) -> m NoUniqueness -> m Type
forall (f :: * -> *) a b. Applicative f => f (a -> b) -> f a -> f b
<*> NoUniqueness -> m NoUniqueness
forall (f :: * -> *) a. Applicative f => a -> f a
pure NoUniqueness
u

-- | Express a monad expression on a syntax node.  Each element of
-- this structure expresses the action to be performed on a given
-- child.
data Walker lore m = Walker {
    Walker lore m -> SubExp -> m ()
walkOnSubExp :: SubExp -> m ()
  , Walker lore m -> Body lore -> m ()
walkOnBody :: Body lore -> m ()
  , Walker lore m -> VName -> m ()
walkOnVName :: VName -> m ()
  , Walker lore m -> RetType lore -> m ()
walkOnRetType :: RetType lore -> m ()
  , Walker lore m -> BranchType lore -> m ()
walkOnBranchType :: BranchType lore -> m ()
  , Walker lore m -> FParam lore -> m ()
walkOnFParam :: FParam lore -> m ()
  , Walker lore m -> LParam lore -> m ()
walkOnLParam :: LParam lore -> m ()
  , Walker lore m -> Op lore -> m ()
walkOnOp :: Op lore -> m ()
  }

-- | A no-op traversal.
identityWalker :: Monad m => Walker lore m
identityWalker :: Walker lore m
identityWalker = Walker :: forall lore (m :: * -> *).
(SubExp -> m ())
-> (Body lore -> m ())
-> (VName -> m ())
-> (RetType lore -> m ())
-> (BranchType lore -> m ())
-> (FParam lore -> m ())
-> (LParam lore -> m ())
-> (Op lore -> m ())
-> Walker lore m
Walker {
                   walkOnSubExp :: SubExp -> m ()
walkOnSubExp = m () -> SubExp -> m ()
forall a b. a -> b -> a
const (m () -> SubExp -> m ()) -> m () -> SubExp -> m ()
forall a b. (a -> b) -> a -> b
$ () -> m ()
forall (m :: * -> *) a. Monad m => a -> m a
return ()
                 , walkOnBody :: Body lore -> m ()
walkOnBody = m () -> Body lore -> m ()
forall a b. a -> b -> a
const (m () -> Body lore -> m ()) -> m () -> Body lore -> m ()
forall a b. (a -> b) -> a -> b
$ () -> m ()
forall (m :: * -> *) a. Monad m => a -> m a
return ()
                 , walkOnVName :: VName -> m ()
walkOnVName = m () -> VName -> m ()
forall a b. a -> b -> a
const (m () -> VName -> m ()) -> m () -> VName -> m ()
forall a b. (a -> b) -> a -> b
$ () -> m ()
forall (m :: * -> *) a. Monad m => a -> m a
return ()
                 , walkOnRetType :: RetType lore -> m ()
walkOnRetType = m () -> RetType lore -> m ()
forall a b. a -> b -> a
const (m () -> RetType lore -> m ()) -> m () -> RetType lore -> m ()
forall a b. (a -> b) -> a -> b
$ () -> m ()
forall (m :: * -> *) a. Monad m => a -> m a
return ()
                 , walkOnBranchType :: BranchType lore -> m ()
walkOnBranchType = m () -> BranchType lore -> m ()
forall a b. a -> b -> a
const (m () -> BranchType lore -> m ())
-> m () -> BranchType lore -> m ()
forall a b. (a -> b) -> a -> b
$ () -> m ()
forall (m :: * -> *) a. Monad m => a -> m a
return ()
                 , walkOnFParam :: FParam lore -> m ()
walkOnFParam = m () -> FParam lore -> m ()
forall a b. a -> b -> a
const (m () -> FParam lore -> m ()) -> m () -> FParam lore -> m ()
forall a b. (a -> b) -> a -> b
$ () -> m ()
forall (m :: * -> *) a. Monad m => a -> m a
return ()
                 , walkOnLParam :: LParam lore -> m ()
walkOnLParam = m () -> LParam lore -> m ()
forall a b. a -> b -> a
const (m () -> LParam lore -> m ()) -> m () -> LParam lore -> m ()
forall a b. (a -> b) -> a -> b
$ () -> m ()
forall (m :: * -> *) a. Monad m => a -> m a
return ()
                 , walkOnOp :: Op lore -> m ()
walkOnOp = m () -> Op lore -> m ()
forall a b. a -> b -> a
const (m () -> Op lore -> m ()) -> m () -> Op lore -> m ()
forall a b. (a -> b) -> a -> b
$ () -> m ()
forall (m :: * -> *) a. Monad m => a -> m a
return ()
                 }

walkOnShape :: Monad m => Walker lore m -> Shape -> m ()
walkOnShape :: Walker lore m -> Shape -> m ()
walkOnShape Walker lore m
tv (Shape [SubExp]
ds) = (SubExp -> m ()) -> [SubExp] -> m ()
forall (t :: * -> *) (m :: * -> *) a b.
(Foldable t, Monad m) =>
(a -> m b) -> t a -> m ()
mapM_ (Walker lore m -> SubExp -> m ()
forall lore (m :: * -> *). Walker lore m -> SubExp -> m ()
walkOnSubExp Walker lore m
tv) [SubExp]
ds

walkOnType :: Monad m =>
             (SubExp -> m ()) -> Type -> m ()
walkOnType :: (SubExp -> m ()) -> Type -> m ()
walkOnType SubExp -> m ()
_ Prim{} = () -> m ()
forall (m :: * -> *) a. Monad m => a -> m a
return ()
walkOnType SubExp -> m ()
_ Mem{} = () -> m ()
forall (m :: * -> *) a. Monad m => a -> m a
return ()
walkOnType SubExp -> m ()
f (Array PrimType
_ Shape
shape NoUniqueness
_) = (SubExp -> m ()) -> [SubExp] -> m ()
forall (t :: * -> *) (m :: * -> *) a b.
(Foldable t, Monad m) =>
(a -> m b) -> t a -> m ()
mapM_ SubExp -> m ()
f ([SubExp] -> m ()) -> [SubExp] -> m ()
forall a b. (a -> b) -> a -> b
$ Shape -> [SubExp]
forall d. ShapeBase d -> [d]
shapeDims Shape
shape

walkOnLoopForm :: Monad m => Walker lore m -> LoopForm lore -> m ()
walkOnLoopForm :: Walker lore m -> LoopForm lore -> m ()
walkOnLoopForm Walker lore m
tv (ForLoop VName
i IntType
_ SubExp
bound [(LParam lore, VName)]
loop_vars) =
  Walker lore m -> VName -> m ()
forall lore (m :: * -> *). Walker lore m -> VName -> m ()
walkOnVName Walker lore m
tv VName
i m () -> m () -> m ()
forall (m :: * -> *) a b. Monad m => m a -> m b -> m b
>> Walker lore m -> SubExp -> m ()
forall lore (m :: * -> *). Walker lore m -> SubExp -> m ()
walkOnSubExp Walker lore m
tv SubExp
bound m () -> m () -> m ()
forall (m :: * -> *) a b. Monad m => m a -> m b -> m b
>>
  (LParam lore -> m ()) -> [LParam lore] -> m ()
forall (t :: * -> *) (m :: * -> *) a b.
(Foldable t, Monad m) =>
(a -> m b) -> t a -> m ()
mapM_ (Walker lore m -> LParam lore -> m ()
forall lore (m :: * -> *). Walker lore m -> LParam lore -> m ()
walkOnLParam Walker lore m
tv) [LParam lore]
loop_lparams m () -> m () -> m ()
forall (m :: * -> *) a b. Monad m => m a -> m b -> m b
>> (VName -> m ()) -> [VName] -> m ()
forall (t :: * -> *) (m :: * -> *) a b.
(Foldable t, Monad m) =>
(a -> m b) -> t a -> m ()
mapM_ (Walker lore m -> VName -> m ()
forall lore (m :: * -> *). Walker lore m -> VName -> m ()
walkOnVName Walker lore m
tv) [VName]
loop_arrs
  where ([LParam lore]
loop_lparams,[VName]
loop_arrs) = [(LParam lore, VName)] -> ([LParam lore], [VName])
forall a b. [(a, b)] -> ([a], [b])
unzip [(LParam lore, VName)]
loop_vars
walkOnLoopForm Walker lore m
tv (WhileLoop VName
cond) =
  Walker lore m -> VName -> m ()
forall lore (m :: * -> *). Walker lore m -> VName -> m ()
walkOnVName Walker lore m
tv VName
cond

-- | As 'mapExpM', but do not construct a result AST.
walkExpM :: Monad m => Walker lore m -> Exp lore -> m ()
walkExpM :: Walker lore m -> Exp lore -> m ()
walkExpM Walker lore m
tv (BasicOp (SubExp SubExp
se)) =
  Walker lore m -> SubExp -> m ()
forall lore (m :: * -> *). Walker lore m -> SubExp -> m ()
walkOnSubExp Walker lore m
tv SubExp
se
walkExpM Walker lore m
tv (BasicOp (ArrayLit [SubExp]
els Type
rowt)) =
  (SubExp -> m ()) -> [SubExp] -> m ()
forall (t :: * -> *) (m :: * -> *) a b.
(Foldable t, Monad m) =>
(a -> m b) -> t a -> m ()
mapM_ (Walker lore m -> SubExp -> m ()
forall lore (m :: * -> *). Walker lore m -> SubExp -> m ()
walkOnSubExp Walker lore m
tv) [SubExp]
els m () -> m () -> m ()
forall (m :: * -> *) a b. Monad m => m a -> m b -> m b
>> (SubExp -> m ()) -> Type -> m ()
forall (m :: * -> *). Monad m => (SubExp -> m ()) -> Type -> m ()
walkOnType (Walker lore m -> SubExp -> m ()
forall lore (m :: * -> *). Walker lore m -> SubExp -> m ()
walkOnSubExp Walker lore m
tv) Type
rowt
walkExpM Walker lore m
tv (BasicOp (BinOp BinOp
_ SubExp
x SubExp
y)) =
  Walker lore m -> SubExp -> m ()
forall lore (m :: * -> *). Walker lore m -> SubExp -> m ()
walkOnSubExp Walker lore m
tv SubExp
x m () -> m () -> m ()
forall (m :: * -> *) a b. Monad m => m a -> m b -> m b
>> Walker lore m -> SubExp -> m ()
forall lore (m :: * -> *). Walker lore m -> SubExp -> m ()
walkOnSubExp Walker lore m
tv SubExp
y
walkExpM Walker lore m
tv (BasicOp (CmpOp CmpOp
_ SubExp
x SubExp
y)) =
  Walker lore m -> SubExp -> m ()
forall lore (m :: * -> *). Walker lore m -> SubExp -> m ()
walkOnSubExp Walker lore m
tv SubExp
x m () -> m () -> m ()
forall (m :: * -> *) a b. Monad m => m a -> m b -> m b
>> Walker lore m -> SubExp -> m ()
forall lore (m :: * -> *). Walker lore m -> SubExp -> m ()
walkOnSubExp Walker lore m
tv SubExp
y
walkExpM Walker lore m
tv (BasicOp (ConvOp ConvOp
_ SubExp
x)) =
  Walker lore m -> SubExp -> m ()
forall lore (m :: * -> *). Walker lore m -> SubExp -> m ()
walkOnSubExp Walker lore m
tv SubExp
x
walkExpM Walker lore m
tv (BasicOp (UnOp UnOp
_ SubExp
x)) =
  Walker lore m -> SubExp -> m ()
forall lore (m :: * -> *). Walker lore m -> SubExp -> m ()
walkOnSubExp Walker lore m
tv SubExp
x
walkExpM Walker lore m
tv (If SubExp
c BodyT lore
texp BodyT lore
fexp (IfDec [BranchType lore]
ts IfSort
_)) =
  Walker lore m -> SubExp -> m ()
forall lore (m :: * -> *). Walker lore m -> SubExp -> m ()
walkOnSubExp Walker lore m
tv SubExp
c m () -> m () -> m ()
forall (m :: * -> *) a b. Monad m => m a -> m b -> m b
>> Walker lore m -> BodyT lore -> m ()
forall lore (m :: * -> *). Walker lore m -> Body lore -> m ()
walkOnBody Walker lore m
tv BodyT lore
texp m () -> m () -> m ()
forall (m :: * -> *) a b. Monad m => m a -> m b -> m b
>>
  Walker lore m -> BodyT lore -> m ()
forall lore (m :: * -> *). Walker lore m -> Body lore -> m ()
walkOnBody Walker lore m
tv BodyT lore
fexp m () -> m () -> m ()
forall (m :: * -> *) a b. Monad m => m a -> m b -> m b
>> (BranchType lore -> m ()) -> [BranchType lore] -> m ()
forall (t :: * -> *) (m :: * -> *) a b.
(Foldable t, Monad m) =>
(a -> m b) -> t a -> m ()
mapM_ (Walker lore m -> BranchType lore -> m ()
forall lore (m :: * -> *). Walker lore m -> BranchType lore -> m ()
walkOnBranchType Walker lore m
tv) [BranchType lore]
ts
walkExpM Walker lore m
tv (Apply Name
_ [(SubExp, Diet)]
args [RetType lore]
ret (Safety, SrcLoc, [SrcLoc])
_) =
  ((SubExp, Diet) -> m ()) -> [(SubExp, Diet)] -> m ()
forall (t :: * -> *) (m :: * -> *) a b.
(Foldable t, Monad m) =>
(a -> m b) -> t a -> m ()
mapM_ (Walker lore m -> SubExp -> m ()
forall lore (m :: * -> *). Walker lore m -> SubExp -> m ()
walkOnSubExp Walker lore m
tv (SubExp -> m ())
-> ((SubExp, Diet) -> SubExp) -> (SubExp, Diet) -> m ()
forall b c a. (b -> c) -> (a -> b) -> a -> c
. (SubExp, Diet) -> SubExp
forall a b. (a, b) -> a
fst) [(SubExp, Diet)]
args m () -> m () -> m ()
forall (m :: * -> *) a b. Monad m => m a -> m b -> m b
>> (RetType lore -> m ()) -> [RetType lore] -> m ()
forall (t :: * -> *) (m :: * -> *) a b.
(Foldable t, Monad m) =>
(a -> m b) -> t a -> m ()
mapM_ (Walker lore m -> RetType lore -> m ()
forall lore (m :: * -> *). Walker lore m -> RetType lore -> m ()
walkOnRetType Walker lore m
tv) [RetType lore]
ret
walkExpM Walker lore m
tv (BasicOp (Index VName
arr Slice SubExp
slice)) =
  Walker lore m -> VName -> m ()
forall lore (m :: * -> *). Walker lore m -> VName -> m ()
walkOnVName Walker lore m
tv VName
arr m () -> m () -> m ()
forall (m :: * -> *) a b. Monad m => m a -> m b -> m b
>> (DimIndex SubExp -> m ()) -> Slice SubExp -> m ()
forall (t :: * -> *) (m :: * -> *) a b.
(Foldable t, Monad m) =>
(a -> m b) -> t a -> m ()
mapM_ ((SubExp -> m ()) -> DimIndex SubExp -> m ()
forall (t :: * -> *) (f :: * -> *) a b.
(Foldable t, Applicative f) =>
(a -> f b) -> t a -> f ()
traverse_ (Walker lore m -> SubExp -> m ()
forall lore (m :: * -> *). Walker lore m -> SubExp -> m ()
walkOnSubExp Walker lore m
tv)) Slice SubExp
slice
walkExpM Walker lore m
tv (BasicOp (Update VName
arr Slice SubExp
slice SubExp
se)) =
  Walker lore m -> VName -> m ()
forall lore (m :: * -> *). Walker lore m -> VName -> m ()
walkOnVName Walker lore m
tv VName
arr m () -> m () -> m ()
forall (m :: * -> *) a b. Monad m => m a -> m b -> m b
>>
  (DimIndex SubExp -> m ()) -> Slice SubExp -> m ()
forall (t :: * -> *) (m :: * -> *) a b.
(Foldable t, Monad m) =>
(a -> m b) -> t a -> m ()
mapM_ ((SubExp -> m ()) -> DimIndex SubExp -> m ()
forall (t :: * -> *) (f :: * -> *) a b.
(Foldable t, Applicative f) =>
(a -> f b) -> t a -> f ()
traverse_ (Walker lore m -> SubExp -> m ()
forall lore (m :: * -> *). Walker lore m -> SubExp -> m ()
walkOnSubExp Walker lore m
tv)) Slice SubExp
slice m () -> m () -> m ()
forall (m :: * -> *) a b. Monad m => m a -> m b -> m b
>>
  Walker lore m -> SubExp -> m ()
forall lore (m :: * -> *). Walker lore m -> SubExp -> m ()
walkOnSubExp Walker lore m
tv SubExp
se
walkExpM Walker lore m
tv (BasicOp (Iota SubExp
n SubExp
x SubExp
s IntType
_)) =
  Walker lore m -> SubExp -> m ()
forall lore (m :: * -> *). Walker lore m -> SubExp -> m ()
walkOnSubExp Walker lore m
tv SubExp
n m () -> m () -> m ()
forall (m :: * -> *) a b. Monad m => m a -> m b -> m b
>> Walker lore m -> SubExp -> m ()
forall lore (m :: * -> *). Walker lore m -> SubExp -> m ()
walkOnSubExp Walker lore m
tv SubExp
x m () -> m () -> m ()
forall (m :: * -> *) a b. Monad m => m a -> m b -> m b
>> Walker lore m -> SubExp -> m ()
forall lore (m :: * -> *). Walker lore m -> SubExp -> m ()
walkOnSubExp Walker lore m
tv SubExp
s
walkExpM Walker lore m
tv (BasicOp (Replicate Shape
shape SubExp
vexp)) =
  Walker lore m -> Shape -> m ()
forall (m :: * -> *) lore.
Monad m =>
Walker lore m -> Shape -> m ()
walkOnShape Walker lore m
tv Shape
shape m () -> m () -> m ()
forall (m :: * -> *) a b. Monad m => m a -> m b -> m b
>> Walker lore m -> SubExp -> m ()
forall lore (m :: * -> *). Walker lore m -> SubExp -> m ()
walkOnSubExp Walker lore m
tv SubExp
vexp
walkExpM Walker lore m
tv (BasicOp (Scratch PrimType
_ [SubExp]
shape)) =
  (SubExp -> m ()) -> [SubExp] -> m ()
forall (t :: * -> *) (m :: * -> *) a b.
(Foldable t, Monad m) =>
(a -> m b) -> t a -> m ()
mapM_ (Walker lore m -> SubExp -> m ()
forall lore (m :: * -> *). Walker lore m -> SubExp -> m ()
walkOnSubExp Walker lore m
tv) [SubExp]
shape
walkExpM Walker lore m
tv (BasicOp (Reshape ShapeChange SubExp
shape VName
arrexp)) =
  (DimChange SubExp -> m ()) -> ShapeChange SubExp -> m ()
forall (t :: * -> *) (m :: * -> *) a b.
(Foldable t, Monad m) =>
(a -> m b) -> t a -> m ()
mapM_ ((SubExp -> m ()) -> DimChange SubExp -> m ()
forall (t :: * -> *) (f :: * -> *) a b.
(Foldable t, Applicative f) =>
(a -> f b) -> t a -> f ()
traverse_ (Walker lore m -> SubExp -> m ()
forall lore (m :: * -> *). Walker lore m -> SubExp -> m ()
walkOnSubExp Walker lore m
tv)) ShapeChange SubExp
shape m () -> m () -> m ()
forall (m :: * -> *) a b. Monad m => m a -> m b -> m b
>> Walker lore m -> VName -> m ()
forall lore (m :: * -> *). Walker lore m -> VName -> m ()
walkOnVName Walker lore m
tv VName
arrexp
walkExpM Walker lore m
tv (BasicOp (Rearrange [Int]
_ VName
e)) =
  Walker lore m -> VName -> m ()
forall lore (m :: * -> *). Walker lore m -> VName -> m ()
walkOnVName Walker lore m
tv VName
e
walkExpM Walker lore m
tv (BasicOp (Rotate [SubExp]
es VName
e)) =
  (SubExp -> m ()) -> [SubExp] -> m ()
forall (t :: * -> *) (m :: * -> *) a b.
(Foldable t, Monad m) =>
(a -> m b) -> t a -> m ()
mapM_ (Walker lore m -> SubExp -> m ()
forall lore (m :: * -> *). Walker lore m -> SubExp -> m ()
walkOnSubExp Walker lore m
tv) [SubExp]
es m () -> m () -> m ()
forall (m :: * -> *) a b. Monad m => m a -> m b -> m b
>> Walker lore m -> VName -> m ()
forall lore (m :: * -> *). Walker lore m -> VName -> m ()
walkOnVName Walker lore m
tv VName
e
walkExpM Walker lore m
tv (BasicOp (Concat Int
_ VName
x [VName]
ys SubExp
size)) =
  Walker lore m -> VName -> m ()
forall lore (m :: * -> *). Walker lore m -> VName -> m ()
walkOnVName Walker lore m
tv VName
x m () -> m () -> m ()
forall (m :: * -> *) a b. Monad m => m a -> m b -> m b
>> (VName -> m ()) -> [VName] -> m ()
forall (t :: * -> *) (m :: * -> *) a b.
(Foldable t, Monad m) =>
(a -> m b) -> t a -> m ()
mapM_ (Walker lore m -> VName -> m ()
forall lore (m :: * -> *). Walker lore m -> VName -> m ()
walkOnVName Walker lore m
tv) [VName]
ys m () -> m () -> m ()
forall (m :: * -> *) a b. Monad m => m a -> m b -> m b
>> Walker lore m -> SubExp -> m ()
forall lore (m :: * -> *). Walker lore m -> SubExp -> m ()
walkOnSubExp Walker lore m
tv SubExp
size
walkExpM Walker lore m
tv (BasicOp (Copy VName
e)) =
  Walker lore m -> VName -> m ()
forall lore (m :: * -> *). Walker lore m -> VName -> m ()
walkOnVName Walker lore m
tv VName
e
walkExpM Walker lore m
tv (BasicOp (Manifest [Int]
_ VName
e)) =
  Walker lore m -> VName -> m ()
forall lore (m :: * -> *). Walker lore m -> VName -> m ()
walkOnVName Walker lore m
tv VName
e
walkExpM Walker lore m
tv (BasicOp (Assert SubExp
e ErrorMsg SubExp
msg (SrcLoc, [SrcLoc])
_)) =
  Walker lore m -> SubExp -> m ()
forall lore (m :: * -> *). Walker lore m -> SubExp -> m ()
walkOnSubExp Walker lore m
tv SubExp
e m () -> m () -> m ()
forall (m :: * -> *) a b. Monad m => m a -> m b -> m b
>> (SubExp -> m ()) -> ErrorMsg SubExp -> m ()
forall (t :: * -> *) (f :: * -> *) a b.
(Foldable t, Applicative f) =>
(a -> f b) -> t a -> f ()
traverse_ (Walker lore m -> SubExp -> m ()
forall lore (m :: * -> *). Walker lore m -> SubExp -> m ()
walkOnSubExp Walker lore m
tv) ErrorMsg SubExp
msg
walkExpM Walker lore m
tv (BasicOp (Opaque SubExp
e)) =
  Walker lore m -> SubExp -> m ()
forall lore (m :: * -> *). Walker lore m -> SubExp -> m ()
walkOnSubExp Walker lore m
tv SubExp
e
walkExpM Walker lore m
tv (DoLoop [(FParam lore, SubExp)]
ctxmerge [(FParam lore, SubExp)]
valmerge LoopForm lore
form BodyT lore
loopbody) = do
  (FParam lore -> m ()) -> [FParam lore] -> m ()
forall (t :: * -> *) (m :: * -> *) a b.
(Foldable t, Monad m) =>
(a -> m b) -> t a -> m ()
mapM_ (Walker lore m -> FParam lore -> m ()
forall lore (m :: * -> *). Walker lore m -> FParam lore -> m ()
walkOnFParam Walker lore m
tv) [FParam lore]
ctxparams
  (FParam lore -> m ()) -> [FParam lore] -> m ()
forall (t :: * -> *) (m :: * -> *) a b.
(Foldable t, Monad m) =>
(a -> m b) -> t a -> m ()
mapM_ (Walker lore m -> FParam lore -> m ()
forall lore (m :: * -> *). Walker lore m -> FParam lore -> m ()
walkOnFParam Walker lore m
tv) [FParam lore]
valparams
  Walker lore m -> LoopForm lore -> m ()
forall (m :: * -> *) lore.
Monad m =>
Walker lore m -> LoopForm lore -> m ()
walkOnLoopForm Walker lore m
tv LoopForm lore
form
  (SubExp -> m ()) -> [SubExp] -> m ()
forall (t :: * -> *) (m :: * -> *) a b.
(Foldable t, Monad m) =>
(a -> m b) -> t a -> m ()
mapM_ (Walker lore m -> SubExp -> m ()
forall lore (m :: * -> *). Walker lore m -> SubExp -> m ()
walkOnSubExp Walker lore m
tv) [SubExp]
ctxinits
  (SubExp -> m ()) -> [SubExp] -> m ()
forall (t :: * -> *) (m :: * -> *) a b.
(Foldable t, Monad m) =>
(a -> m b) -> t a -> m ()
mapM_ (Walker lore m -> SubExp -> m ()
forall lore (m :: * -> *). Walker lore m -> SubExp -> m ()
walkOnSubExp Walker lore m
tv) [SubExp]
valinits
  Walker lore m -> BodyT lore -> m ()
forall lore (m :: * -> *). Walker lore m -> Body lore -> m ()
walkOnBody Walker lore m
tv BodyT lore
loopbody
  where ([FParam lore]
ctxparams,[SubExp]
ctxinits) = [(FParam lore, SubExp)] -> ([FParam lore], [SubExp])
forall a b. [(a, b)] -> ([a], [b])
unzip [(FParam lore, SubExp)]
ctxmerge
        ([FParam lore]
valparams,[SubExp]
valinits) = [(FParam lore, SubExp)] -> ([FParam lore], [SubExp])
forall a b. [(a, b)] -> ([a], [b])
unzip [(FParam lore, SubExp)]
valmerge
walkExpM Walker lore m
tv (Op Op lore
op) =
  Walker lore m -> Op lore -> m ()
forall lore (m :: * -> *). Walker lore m -> Op lore -> m ()
walkOnOp Walker lore m
tv Op lore
op