Preliminary code for block scopes and block contexts.

test/mjsunit/harmony/block-scoping.js

+// Flags: --allow-natives-syntax --harmony-block-scoping

[Kevin Millikin (Chromium), 2011/08/10 11:19:27]

The test file needs a copyright notice.

[Steven, 2011/08/10 12:21:00]

Done.

+
+// Hoisting of var declarations.
+function f1() {
+  {
+    var x = 1;
+    var y;
+  }
+  assertEquals(1, x)
+  assertEquals(undefined, y)
+}
+f1();
+
+// Dynamic lookup through block scopes.
+function f2(one) {
+  var x = one + 1;
+  // TODO(keuchel): introduce let
+  // let y = one + 2;
+  if (one == 1) {
+    // Parameter
+    assertEquals(1, eval('one'));
+    // Function local var variable
+    assertEquals(2, eval('x'));
+    // Function local let variable
+    // TODO(keuchel): introduce let
+    // assertEquals(3, eval('y'));
+  }
+}
+f2();
+