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%2FSignals.scl;fp=tests%2Forg.simantics.scl.compiler.tests%2Fsrc%2Forg%2Fsimantics%2Fscl%2Fcompiler%2Ftests%2Fscl%2FSignals.scl;h=726a3f5be6901db69e97143328aa001a60070a6d;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/Signals.scl b/tests/org.simantics.scl.compiler.tests/src/org/simantics/scl/compiler/tests/scl/Signals.scl
new file mode 100644
index 000000000..726a3f5be
--- /dev/null
+++ b/tests/org.simantics.scl.compiler.tests/src/org/simantics/scl/compiler/tests/scl/Signals.scl
@@ -0,0 +1,34 @@
+import "Prelude"
+
+// --- Signals ------------------------------------------------------
+
+data Signal =
+    SigSum [Signal]
+  | SigConst Double
+  | SigNeg Signal
+  | SigMul [Signal]
+
+deriving instance Eq Signal
+deriving instance Hashable Signal
+deriving instance Show Signal
+
+instance Additive Signal where
+    zero = SigConst 0
+    a + b = SigSum [a,b]
+    sum l = SigSum l
+
+instance Ring Signal where
+    one = SigConst 1
+    neg a = SigNeg a
+    fromInteger i = SigConst (fromInteger i)
+    a * b = SigMul [a,b]
+
+/*
+instance Real Signal where
+    fromDouble d = SigConst d
+*/
+
+main :: Signal
+main = 1 + 2 * 3 - 4 
+--
+???
\ No newline at end of file