src/Kaos/Emit.hs

   1 {-
   2    Kaos - A compiler for creatures scripts
   3    Copyright (C) 2005-2008  Bryan Donlan
   4
   5    This program is free software: you can redistribute it and/or modify
   6    it under the terms of the GNU General Public License as published by
   7    the Free Software Foundation, either version 3 of the License, or
   8    (at your option) any later version.
   9
  10    This program is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13    GNU General Public License for more details.
  14
  15    You should have received a copy of the GNU General Public License
  16    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  17 -}
  18 module Kaos.Emit (emitCaos, emitConst) where
  19
  20 import Kaos.CAOS
  21 import Kaos.AST
  22 import Data.Char
  23
  24 --- XXX unflattenable
  25 emitCaos :: [CAOSLine CAOSRegister] -> String
  26 emitCaos c = unlines $ map emitLine c
  27
  28 emitLine :: CAOSLine CAOSRegister -> String
  29 emitLine (CAOSLine l) = unwords $ map emitToken l
  30 emitLine (CAOSLoop l) = unlines $ map emitLine l
  31
  32 emitToken :: CAOSToken CAOSRegister -> String
  33 emitToken (CAOSLiteral s) = map toUpper s
  34 emitToken r@(CAOSRegister (CAOSReg i)) =
  35     case show i of
  36         s@[_] -> "VA0" ++ s
  37         s@[_,_] -> "VA" ++ s
  38         _ -> error $ "ICE: Register out of range (bug bd_): " ++ show r
  39 emitToken (CAOSConst cv) = emitConst cv
  40
  41 emitConst :: ConstValue -> String
  42 emitConst (CInteger i) = show i
  43 emitConst (CString s) = s
  44 emitConst (CFloat f) = show f