Compile: some cleanup

1 files changed, 9 insertions, 10 deletions

diff --git a/src/Compile.hs b/src/Compile.hs
index 92eb6d5..48a03b5 100644
--- a/src/Compile.hs
+++ b/src/Compile.hs
@@ -1,9 +1,8 @@
-{-# LANGUAGE DeriveFunctor #-}
 {-# LANGUAGE GADTs #-}
 {-# LANGUAGE LambdaCase #-}
 {-# LANGUAGE PolyKinds #-}
 {-# LANGUAGE TypeApplications #-}
-module Compile where
+module Compile (compile) where
 
 import Control.Monad.Trans.State.Strict
 import Data.Bifunctor (first, second)
@@ -68,16 +67,16 @@ data Stmt
   | SAsg String CExpr  -- ^ variable name, right-hand side
   | SBlock [Stmt]
   | SIf CExpr [Stmt] [Stmt]
-  | SVerbatim String
+  | SVerbatim String  -- ^ no implicit ';', just printed as-is
   deriving (Show)
 
 data CExpr
-  = CELit String
-  | CEStruct String [(String, CExpr)]
-  | CEProj CExpr String
-  | CECall String [CExpr]
-  | CEBinop CExpr String CExpr
-  | CEIf CExpr CExpr CExpr
+  = CELit String  -- ^ inserted as-is, assumed no parentheses needed
+  | CEStruct String [(String, CExpr)]  -- ^ struct construction literal: `(name){.field=expr}`
+  | CEProj CExpr String  -- ^ field projection: expr.field
+  | CECall String [CExpr]  -- ^ function(arg1, ..., argn)
+  | CEBinop CExpr String CExpr  -- ^ expr + expr
+  | CEIf CExpr CExpr CExpr  -- ^ expr ? expr : expr
   deriving (Show)
 
 printStructDecl :: StructDecl -> ShowS
@@ -533,7 +532,7 @@ compile' env = \case
     STI64 -> return $ CELit $ "(int64_t)" ++ show x
     STF32 -> return $ CELit $ show x ++ "f"
     STF64 -> return $ CELit $ show x
-    STBool -> return $ CELit $ if x then "true" else "false"
+    STBool -> return $ CELit $ if x then "1" else "0"
 
   -- EIdx0 _ e -> error "TODO" -- EIdx0 ext (compile' e)