language-spir-v-0.1.0.0: src/Language/SpirV/ShaderKind.hs

{-# LANGUAGE TemplateHaskell #-}
{-# LANGUAGE BlockArguments #-}
{-# LANGUAGE DataKinds, KindSignatures #-}
{-# LANGUAGE AllowAmbiguousTypes #-}
{-# OPTIONS_GHC -Wall -fno-warn-tabs #-}

module Language.SpirV.ShaderKind where

import Language.Haskell.TH
import Data.Traversable

import qualified Language.SpirV.ShaderKind.Core as C

(: []) <$> do
	enms <- runIO $ lines <$> readFile "data/ShaderKind.txt"
	dataD (cxt []) (mkName "ShaderKind") [] Nothing
		((\enm -> normalC (mkName enm) []) <$> enms)
		[derivClause Nothing [conT ''Show]]

class IsShaderKind (sknd :: ShaderKind) where shaderKind :: C.ShaderKind

do	enms <- runIO $ lines <$> readFile "data/ShaderKind.txt"
	pairs <- for enms \nm -> do
		Just foo <- lookupValueName nm
		Just bar <- lookupValueName $ "C." ++ nm
		pure (foo, bar)
	(\(knd, cknd) -> instanceD (cxt []) (conT ''IsShaderKind `appT` promotedT knd)
		[valD (varP 'shaderKind) (normalB $ conE cknd) []]) `mapM` pairs