dart2dart: Logical operators and related rewrite rules in dart_tree.

tests/language/logical_rewrite_test.dart

Index: tests/language/logical_rewrite_test.dart
diff --git a/tests/language/logical_rewrite_test.dart b/tests/language/logical_rewrite_test.dart
new file mode 100644
index 0000000000000000000000000000000000000000..506bff31ab98034e2e9ee05d13209a4067ad0c9e
--- /dev/null
+++ b/tests/language/logical_rewrite_test.dart
@@ -0,0 +1,111 @@
+// Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+import 'package:expect/expect.dart';
+
+cneg_and(x, y) {
+    if ((x && y) ? false : true) {
+        return 0;
+    } else {
+        return 1;
+    }
+}
+
+cneg_and_not(x, y) {
+    if ((x && (y ? false : true)) ? false : true) {
+        return 0;
+    } else {
+        return 1;
+    }
+}
+
+cneg_not_and(x, y) {
+    if (((x ? false : true) && y) ? false : true) {
+        return 0;
+    } else {
+        return 1;
+    }
+}
+
+cneg_not_and_not(x, y) {
+    if (((x ? false : true) && (y ? false : true)) ? false : true) {
+        return 0;
+    } else {
+        return 1;
+    }
+}
+
+cneg_or(x, y) {
+    if ((x || y) ? false : true) {
+        return 0;
+    } else {
+        return 1;
+    }
+}
+
+cneg_or_not(x, y) {
+    if ((x || (y ? false : true)) ? false : true) {
+        return 0;
+    } else {
+        return 1;
+    }
+}
+
+cneg_not_or(x, y) {
+    if (((x ? false : true) || y) ? false : true) {
+        return 0;
+    } else {
+        return 1;
+    }
+}
+
+cneg_not_or_not(x, y) {
+    if (((x ? false : true) || (y ? false : true)) ? false : true) {
+        return 0;
+    } else {
+        return 1;
+    }
+}
+
+main() {
+    Expect.equals(1, cneg_and(true, true));
+    Expect.equals(0, cneg_and(true, false));
+    Expect.equals(0, cneg_and(false, true));
+    Expect.equals(0, cneg_and(false, false));
+
+    Expect.equals(0, cneg_and_not(true, true));
+    Expect.equals(1, cneg_and_not(true, false));
+    Expect.equals(0, cneg_and_not(false, true));
+    Expect.equals(0, cneg_and_not(false, false));
+
+    Expect.equals(0, cneg_not_and(true, true));
+    Expect.equals(0, cneg_not_and(true, false));
+    Expect.equals(1, cneg_not_and(false, true));
+    Expect.equals(0, cneg_not_and(false, false));
+
+    Expect.equals(0, cneg_not_and_not(true, true));
+    Expect.equals(0, cneg_not_and_not(true, false));
+    Expect.equals(0, cneg_not_and_not(false, true));
+    Expect.equals(1, cneg_not_and_not(false, false));
+
+    Expect.equals(1, cneg_or(true, true));
+    Expect.equals(1, cneg_or(true, false));
+    Expect.equals(1, cneg_or(false, true));
+    Expect.equals(0, cneg_or(false, false));
+
+    Expect.equals(1, cneg_or_not(true, true));
+    Expect.equals(1, cneg_or_not(true, false));
+    Expect.equals(0, cneg_or_not(false, true));
+    Expect.equals(1, cneg_or_not(false, false));
+
+    Expect.equals(1, cneg_not_or(true, true));
+    Expect.equals(0, cneg_not_or(true, false));
+    Expect.equals(1, cneg_not_or(false, true));
+    Expect.equals(1, cneg_not_or(false, false));
+
+    Expect.equals(0, cneg_not_or_not(true, true));
+    Expect.equals(1, cneg_not_or_not(true, false));
+    Expect.equals(1, cneg_not_or_not(false, true));
+    Expect.equals(1, cneg_not_or_not(false, false));
+}