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implementation module Sil.Syntax
from StdFunc import o
import StdOverloaded
import StdString
import StdTuple
import Data.List
import Data.Maybe
import Text
import Sil.Util.Printer
instance toString Statement
where
toString (Declaration n a) = n <+ " := " <+ a <+ ";"
toString (Application e) = toString e <+ ";"
toString (Return Nothing) = "return;"
toString (Return (Just a)) = "return " <+ a <+ ";"
toString (If bs e) = "if ..."
toString (MachineStm s) = "|~" <+ s
toString _ = "<<unimplemented Statement>>"
instance toString Type
where
toString TBool = "Bool"
toString TInt = "Int"
toString TVoid = "Void"
instance toString Arg where toString arg = arg.arg_type <+ " " <+ arg.arg_name
instance toString Expression
where
toString (Name n) = n
toString (Literal lit) = toString lit
toString (App n args) = n <+ "(" <+ printersperse ", " args <+ ")"
toString (BuiltinApp op e) = op <+ "(" <+ e <+ ")"
toString (BuiltinApp2 e1 op e2) = "(" <+ e1 <+ ") " <+ op <+ " (" <+ e2 <+ ")"
instance toString Op1
where
toString Neg = "~"
toString Not = "!"
instance toString Op2
where
toString Add = "+"
toString Sub = "-"
toString Mul = "*"
toString Div = "/"
toString Rem = "%"
toString Equals = "=="
toString LogOr = "||"
toString LogAnd = "&&"
instance toString Literal
where
toString (BLit b) = toString b
toString (ILit i) = toString i
instance allStatements Program
where allStatements p = concatMap allStatements p.p_funs
instance allStatements Function
where allStatements f = allStatements f.f_code
instance allStatements CodeBlock
where allStatements cb = concatMap allStatements cb.cb_content
instance allStatements Statement
where
allStatements st=:(Declaration _ _) = [st]
allStatements st=:(Application _) = [st]
allStatements st=:(Return _) = [st]
allStatements st=:(If bs Nothing) = [st:concatMap (allStatements o snd) bs]
allStatements st=:(If bs (Just e)) = [st:allStatements e ++ concatMap (allStatements o snd) bs]
allStatements st=:(While _ cb) = [st:allStatements cb]
allStatements st=:(MachineStm _) = [st]
typeSize :: Type -> Int
typeSize TVoid = 0
typeSize TBool = 1
typeSize TInt = 1
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