Introduce additional context to evaluate operations

test/mjsunit/debug-evaluate-with-context.js

+// Copyright 2008 the V8 project authors. All rights reserved.
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+// modification, are permitted provided that the following conditions are
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+
+// Flags: --expose-debug-as debug
+// Get the Debug object exposed from the debug context global object.
+Debug = debug.Debug
+
+listenerComplete = false;
+exception = false;
+breakPointCount = 0;
+
+function listener(event, exec_state, event_data, data) {
+  try {
+    var context = { what_is_capybara: "a fish" };
+
+    // Try in frame's scope.
+    var local_expression =
+        "(what_is_capybara ? what_is_capybara : 'a beast') + '/' + what_is_parrot";
+    var result = exec_state.frame(0).evaluate(local_expression, void 0, context).value();

[Søren Thygesen Gjesse, 2010/12/13 08:37:14]

Please cases where no additional context is passed as well.

[Peter Rybin, 2010/12/14 00:02:52]

Done.

+    assertEquals('a fish/a bird', result);
+
+    // Try in global scope
+    var global_expression = "what_is_capybara ? what_is_capybara : 'a beast'";
+    var result = exec_state.evaluateGlobal(global_expression, void 0, context).value();
+    assertEquals('a fish', result);
+
+    listenerComplete = true;
+  } catch (e) {
+    exception = e
+  };
+};
+
+// Add the debug event listener.
+Debug.setListener(listener);
+
+function f() {
+  var what_is_parrot = "a bird";
+  debugger;
+};
+
+f();
+// Make sure that the debug event listener vas invoked.
+assertFalse(exception, "exception in listener")
+assertTrue(listenerComplete);