1 files changed, 46 insertions, 0 deletions
diff --git a/Language/C.hs b/Language/C.hs
new file mode 100644
index 0000000..530088c
--- /dev/null
+++ b/Language/C.hs
@@ -0,0 +1,46 @@
+module Language.C where
+
+
+data FunDef
+    = FunDef Type Name [(Type, Name)] StExpr
+    | ProcDef Name [(Type, Name)] [Stmt]
+  deriving (Show, Eq)
+
+data Type
+    = TInt Bits
+    | TUInt Bits
+    | TFloat
+    | TDouble
+    | TPtr Type
+  deriving (Show, Eq)
+
+data Bits = B8 | B16 | B32 | B64
+  deriving (Show, Eq)
+
+newtype Name = Name String
+  deriving (Show, Eq, Ord)
+
+-- Statement expression: conceptually gcc's ({ ... })
+data StExpr = StExpr [Stmt] Expr
+  deriving (Show, Eq)
+
+data Stmt
+    = SDecl Type Name (Maybe Expr)
+    | SAsg Name Expr
+    | SStore Name Expr Expr  -- ^ name[expr] = expr
+    | SCall Name [Expr]
+    -- | @SFor ty i lo hi body@: @for (ty i = lo; i < hi; i++) body@
+    | SFor Type Name Expr Expr [Stmt]
+    | SIf Expr [Stmt] [Stmt]
+  deriving (Show, Eq)
+
+data Expr
+    = EOp Expr String Expr
+    | ENot Expr  -- ^ @!expr@
+    | ELit String
+    | EVar Name
+    | ECall Name [Expr]
+    | EIndex Name Expr
+    | EPtrTo Expr
+    | ESizeOf Type
+  deriving (Show, Eq)