X-Git-Url: https://gerrit.simantics.org/r/gitweb?a=blobdiff_plain;f=tests%2Forg.simantics.scl.compiler.tests%2Fsrc%2Forg%2Fsimantics%2Fscl%2Fcompiler%2Ftests%2Fscl%2FExpressionParsing.scl;fp=tests%2Forg.simantics.scl.compiler.tests%2Fsrc%2Forg%2Fsimantics%2Fscl%2Fcompiler%2Ftests%2Fscl%2FExpressionParsing.scl;h=6719bf935fab62cf14daf1716984e530fb219436;hb=0364f8f54b009e9e5de482d5c9d1cb7efb023141;hp=0000000000000000000000000000000000000000;hpb=7ecf07ff9aacab300f1fb900f1f0f97beb1be139;p=simantics%2Fplatform.git

diff --git a/tests/org.simantics.scl.compiler.tests/src/org/simantics/scl/compiler/tests/scl/ExpressionParsing.scl b/tests/org.simantics.scl.compiler.tests/src/org/simantics/scl/compiler/tests/scl/ExpressionParsing.scl
new file mode 100644
index 000000000..6719bf935
--- /dev/null
+++ b/tests/org.simantics.scl.compiler.tests/src/org/simantics/scl/compiler/tests/scl/ExpressionParsing.scl
@@ -0,0 +1,27 @@
+import "Prelude"
+
+data Exp = Exp String
+
+expToString :: Exp -> String
+expToString (Exp s) = s
+
+instance Additive Exp where
+    zero = Exp "0"
+    Exp a + Exp b = Exp ("(" + a + " + " + b + ")")
+
+instance Ring Exp where
+    one = Exp "1"
+    neg (Exp a) = Exp ("(-" + a + ")")
+    Exp a * Exp b = Exp ("(" + a + " * " + b + ")")
+    Exp a - Exp b = Exp ("(" + a + " - " + b + ")")
+    fromInteger x = Exp (show x)
+    
+a = Exp "a"
+b = Exp "b"
+c = Exp "c"
+d = Exp "d"
+e = Exp "e"
+
+main = expToString (a + b*c + d*e)
+--
+((a + (b * c)) + (d * e)) 
\ No newline at end of file