Upgrade to 3.29
Update V8 to 3.29.88.17 and update makefiles to support building on
all the relevant platforms.
Bug: 17370214
Change-Id: Ia3407c157fd8d72a93e23d8318ccaf6ecf77fa4e
diff --git a/test/mjsunit/es6/generators-debug-liveedit.js b/test/mjsunit/es6/generators-debug-liveedit.js
new file mode 100644
index 0000000..6f0c443
--- /dev/null
+++ b/test/mjsunit/es6/generators-debug-liveedit.js
@@ -0,0 +1,119 @@
+// Copyright 2014 the V8 project authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// Flags: --expose-debug-as debug
+
+var Debug = debug.Debug;
+var LiveEdit = Debug.LiveEdit;
+
+unique_id = 0;
+
+var Generator = (function*(){}).constructor;
+
+function assertIteratorResult(value, done, result) {
+ assertEquals({value: value, done: done}, result);
+}
+
+function MakeGenerator() {
+ // Prevents eval script caching.
+ unique_id++;
+ return Generator('callback',
+ "/* " + unique_id + "*/\n" +
+ "yield callback();\n" +
+ "return 'Cat';\n");
+}
+
+function MakeFunction() {
+ // Prevents eval script caching.
+ unique_id++;
+ return Function('callback',
+ "/* " + unique_id + "*/\n" +
+ "callback();\n" +
+ "return 'Cat';\n");
+}
+
+// First, try MakeGenerator with no perturbations.
+(function(){
+ var generator = MakeGenerator();
+ function callback() {};
+ var iter = generator(callback);
+ assertIteratorResult(undefined, false, iter.next());
+ assertIteratorResult("Cat", true, iter.next());
+})();
+
+function patch(fun, from, to) {
+ function debug() {
+ var log = new Array();
+ var script = Debug.findScript(fun);
+ var pos = script.source.indexOf(from);
+ try {
+ LiveEdit.TestApi.ApplySingleChunkPatch(script, pos, from.length, to,
+ log);
+ } finally {
+ print("Change log: " + JSON.stringify(log) + "\n");
+ }
+ }
+ Debug.ExecuteInDebugContext(debug, false);
+}
+
+// Try to edit a MakeGenerator while it's running, then again while it's
+// stopped.
+(function(){
+ var generator = MakeGenerator();
+
+ var gen_patch_attempted = false;
+ function attempt_gen_patch() {
+ assertFalse(gen_patch_attempted);
+ gen_patch_attempted = true;
+ assertThrows(function() { patch(generator, "'Cat'", "'Capybara'") },
+ LiveEdit.Failure);
+ };
+ var iter = generator(attempt_gen_patch);
+ assertIteratorResult(undefined, false, iter.next());
+ // Patch should not succeed because there is a live generator activation on
+ // the stack.
+ assertIteratorResult("Cat", true, iter.next());
+ assertTrue(gen_patch_attempted);
+
+ // At this point one iterator is live, but closed, so the patch will succeed.
+ patch(generator, "'Cat'", "'Capybara'");
+ iter = generator(function(){});
+ assertIteratorResult(undefined, false, iter.next());
+ // Patch successful.
+ assertIteratorResult("Capybara", true, iter.next());
+
+ // Patching will fail however when a live iterator is suspended.
+ iter = generator(function(){});
+ assertIteratorResult(undefined, false, iter.next());
+ assertThrows(function() { patch(generator, "'Capybara'", "'Tapir'") },
+ LiveEdit.Failure);
+ assertIteratorResult("Capybara", true, iter.next());
+
+ // Try to patch functions with activations inside and outside generator
+ // function activations. We should succeed in the former case, but not in the
+ // latter.
+ var fun_outside = MakeFunction();
+ var fun_inside = MakeFunction();
+ var fun_patch_attempted = false;
+ var fun_patch_restarted = false;
+ function attempt_fun_patches() {
+ if (fun_patch_attempted) {
+ assertFalse(fun_patch_restarted);
+ fun_patch_restarted = true;
+ return;
+ }
+ fun_patch_attempted = true;
+ // Patching outside a generator activation must fail.
+ assertThrows(function() { patch(fun_outside, "'Cat'", "'Cobra'") },
+ LiveEdit.Failure);
+ // Patching inside a generator activation may succeed.
+ patch(fun_inside, "'Cat'", "'Koala'");
+ }
+ iter = generator(function() { return fun_inside(attempt_fun_patches) });
+ assertEquals('Cat',
+ fun_outside(function () {
+ assertIteratorResult('Koala', false, iter.next());
+ assertTrue(fun_patch_restarted);
+ }));
+})();