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module Language.C where
data Program = Program [FunDef]
deriving (Show)
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)
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