Find old Haskell implementation on backup diskHEADmaster

GHC 8.0.2 vintage, doesn't compile

1 files changed, 47 insertions, 0 deletions

diff --git a/hs/notes.txt b/hs/notes.txt
new file mode 100644
index 0000000..e935e44
--- /dev/null
+++ b/hs/notes.txt
@@ -0,0 +1,47 @@
+// {
+//     f := nil;
+//     {
+//         a := 1;
+//         f = ??{
+//             print(a);
+//         };
+//         f();  // print 1
+//         a = 3;
+//         f();  // print 3
+//     };
+//     f();  // print 3
+//     a := 2;
+//     f();  // print 3
+// };  // deref and delete f and a
+// print("done");
+
+
+// -- new snippet
+
+
+// f := ??{
+//     print(a);  // error: undefined variable 'a'
+// };
+// a := 1;
+// f();
+
+
+// -- new snippet
+
+
+{
+    a := 10;  // 1
+    f := nil;  // 2
+    {
+        a := 20;  // 3
+        f = ??{
+            print(a);
+            g := ??{
+                print(a);
+            };
+            g();
+        };
+        f();  // -> 20 20    NOTE: the g is stored in 5 while 4 is available!
+    };
+    f();  // -> 20 20 of 20 10?
+};