X-Git-Url: https://git.martlubbers.net/?a=blobdiff_plain;ds=sidebyside;f=pres.mtask.tex;h=ef80aaff8672d534acf9988f3d10608e32965e2b;hb=8755061062b9738c80da1f5966c93ac6ec832a5c;hp=f878ecf89711dfacc5c1467650bccdbd4368a7f4;hpb=73ae126c560b79464769b58668f7543f7c4734c0;p=msc-thesis1617.git

diff --git a/pres.mtask.tex b/pres.mtask.tex
index f878ecf..ef80aaf 100644
--- a/pres.mtask.tex
+++ b/pres.mtask.tex
@@ -147,9 +147,108 @@ instance intArith PrettyPrinter where
 			\item Type safe
 			\item Embedded in Clean
 			\item Extendable
-			\item \ldots\pause{} but\ldots
-			\item No interaction
-			\item Compilation requires reprogramming
 		\end{itemize}
 	\end{block}
 \end{frame}
+
+\begin{frame}[fragile]
+	\frametitle{Expressions}
+	\begin{block}{mTask}
+		\begin{itemize}
+			\item Two phantom types
+			\item Hierarchy
+		\end{itemize}
+	\end{block}
+	\pause{}
+	\begin{lstlisting}
+class arith v where
+  lit           :: t -> v t Expr
+  (+.) infixl 6 :: (v t p) (v t q) -> v t Expr          | +, zero t    & isExpr p & isExpr q
+  (-.) infixl 6 :: (v t p) (v t q) -> v t Expr          | -, zero t    & ...
+  ...
+class boolExpr v where
+  Not           :: (v Bool p) -> v Bool Expr            | ...
+  (&.) infixr 3 :: (v Bool p) (v Bool q) -> v Bool Expr | ...
+  ...
+  (==.) infix 4 :: (v a p) (v a q) -> v Bool Expr       | ...
+	  \end{lstlisting}
+\end{frame}
+
+\begin{frame}[fragile]
+	\frametitle{Control flow}
+	\begin{lstlisting}
+class If v q r ~s where
+  If :: (v Bool p) (v t q) (v t r) -> v t s | ...
+
+class IF v where
+  IF :: (v Bool p) (v t q) (v s r) -> v () Stmt | ...
+  (?) infix 1 :: (v Bool p) (v t q) -> v () Stmt | ...
+
+instance If Code Stmt Stmt Stmt
+instance If Code e    Stmt Stmt
+instance If Code Stmt e    Stmt
+instance If Code x    y    Expr
+
+class seq v where
+  (:.) infixr 0 :: (v t p) (v u q) -> v u Stmt | ...
+	\end{lstlisting}
+\end{frame}
+
+\begin{frame}[fragile]
+	\frametitle{Assignment and Input/Output}
+	\begin{lstlisting}
+:: DigitalPin = D0 | D1 | D2 ...
+:: AnalogPin  = A0 | A1 | A2 ...
+
+class dIO v where dIO :: DigitalPin -> v Bool Upd
+class aIO v where aIO :: AnalogPin -> v Int Upd
+
+class analogRead v where
+  analogRead :: AnalogPin -> v Int Expr
+  analogWrite :: AnalogPin (v Int p) -> v Int Expr
+
+class digitalRead v where
+  digitalRead :: DigitalPin -> v Bin Expr
+  digitalWrite :: DigitalPin (v Bool p) -> v Int Expr
+  \end{lstlisting}
+\end{frame}
+
+\begin{frame}[fragile]
+	\frametitle{Shared Data Sources and Assignment}
+	\begin{lstlisting}
+:: In a b = In infix 0 a b
+:: Main a = {main :: a}
+
+class sds v where
+  sds :: ((v t Upd)->In t (Main (v c s))) -> (Main (v c s)) | ...
+
+class assign v where
+  (=.) infixr 2 :: (v t Upd) (v t p) -> v t Expr | ...
+	\end{lstlisting}
+\end{frame}
+
+\begin{frame}[fragile]
+	\frametitle{Examples}
+	\begin{lstlisting}
+blink = task \blink=(\x.
+            IF (x ==. lit True)
+               (ledOn led)
+               (ledOff led) :.
+            blink (lit 1000) (Not x))
+        In {main=blink (lit 1000) True}
+
+thermostat :: Main (View () Stmt)
+thermostat = {main = IF (analogRead A0 >. lit 50)
+                        ( digitalWrite D0 (lit True)  )
+                        ( digitalWrite D0 (lit False) )
+             }
+
+thermostat2 :: Main (View () Stmt)
+thermostat2 = let a0 = aIO A0
+                  d0 = dIO D0
+              in {main = IF (a0 >. lit 50)
+                            (d0 =. lit True)
+                            (d0 =. lit False)
+              }
+	\end{lstlisting}
+\end{frame}