Error.hs

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{-# LANGUAGE UndecidableInstances #-}

module Feldspar.Compiler.Imperative.FromCore.Error where



import Control.Monad.RWS

import Language.Syntactic

import Feldspar.Core.Constructs.Error

import Feldspar.Compiler.Imperative.Frontend
import Feldspar.Compiler.Imperative.FromCore.Interpretation



instance (Compile dom dom) => Compile Error dom
  where
    compileProgSym Undefined _ loc Nil = return ()
    compileProgSym (Assert msg) _ loc (cond :* a :* Nil) = do
        condExpr <- compileExpr cond
        tellProg [Call "assert" [In condExpr]]
        when (length msg > 0) $ tellProg [Comment $ "{" ++ msg ++ "}"]
        compileProg loc a

    compileExprSym (Assert msg) _ (cond :* a :* Nil) = do
        condExpr <- compileExpr cond
        tellProg [Call "assert" [In condExpr]]
        when (length msg > 0) $ tellProg [Comment $ "{" ++ msg ++ "}"]
        compileExpr a
    compileExprSym a info args = compileProgFresh a info args