| // Copyright 2012 the V8 project authors. All rights reserved. |
| // Redistribution and use in source and binary forms, with or without |
| // modification, are permitted provided that the following conditions are |
| // met: |
| // |
| // * Redistributions of source code must retain the above copyright |
| // notice, this list of conditions and the following disclaimer. |
| // * Redistributions in binary form must reproduce the above |
| // copyright notice, this list of conditions and the following |
| // disclaimer in the documentation and/or other materials provided |
| // with the distribution. |
| // * Neither the name of Google Inc. nor the names of its |
| // contributors may be used to endorse or promote products derived |
| // from this software without specific prior written permission. |
| // |
| // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| |
| #include "v8.h" |
| |
| #include "cctest.h" |
| |
| using namespace v8; |
| |
| namespace { |
| // Need to create a new isolate when FLAG_harmony_observation is on. |
| class HarmonyIsolate { |
| public: |
| HarmonyIsolate() { |
| i::FLAG_harmony_observation = true; |
| isolate_ = Isolate::New(); |
| isolate_->Enter(); |
| } |
| |
| ~HarmonyIsolate() { |
| isolate_->Exit(); |
| isolate_->Dispose(); |
| } |
| |
| private: |
| Isolate* isolate_; |
| }; |
| } |
| |
| TEST(PerIsolateState) { |
| HarmonyIsolate isolate; |
| HandleScope scope; |
| LocalContext context1; |
| CompileRun( |
| "var count = 0;" |
| "var calls = 0;" |
| "var observer = function(records) { count = records.length; calls++ };" |
| "var obj = {};" |
| "Object.observe(obj, observer);"); |
| Handle<Value> observer = CompileRun("observer"); |
| Handle<Value> obj = CompileRun("obj"); |
| Handle<Value> notify_fun1 = CompileRun( |
| "(function() { obj.foo = 'bar'; })"); |
| Handle<Value> notify_fun2; |
| { |
| LocalContext context2; |
| context2->Global()->Set(String::New("obj"), obj); |
| notify_fun2 = CompileRun( |
| "(function() { obj.foo = 'baz'; })"); |
| } |
| Handle<Value> notify_fun3; |
| { |
| LocalContext context3; |
| context3->Global()->Set(String::New("obj"), obj); |
| notify_fun3 = CompileRun( |
| "(function() { obj.foo = 'bat'; })"); |
| } |
| { |
| LocalContext context4; |
| context4->Global()->Set(String::New("observer"), observer); |
| context4->Global()->Set(String::New("fun1"), notify_fun1); |
| context4->Global()->Set(String::New("fun2"), notify_fun2); |
| context4->Global()->Set(String::New("fun3"), notify_fun3); |
| CompileRun("fun1(); fun2(); fun3(); Object.deliverChangeRecords(observer)"); |
| } |
| CHECK_EQ(1, CompileRun("calls")->Int32Value()); |
| CHECK_EQ(3, CompileRun("count")->Int32Value()); |
| } |
| |
| TEST(EndOfMicrotaskDelivery) { |
| HarmonyIsolate isolate; |
| HandleScope scope; |
| LocalContext context; |
| CompileRun( |
| "var obj = {};" |
| "var count = 0;" |
| "var observer = function(records) { count = records.length };" |
| "Object.observe(obj, observer);" |
| "obj.foo = 'bar';"); |
| CHECK_EQ(1, CompileRun("count")->Int32Value()); |
| } |
| |
| TEST(DeliveryOrdering) { |
| HarmonyIsolate isolate; |
| HandleScope scope; |
| LocalContext context; |
| CompileRun( |
| "var obj1 = {};" |
| "var obj2 = {};" |
| "var ordering = [];" |
| "function observer2() { ordering.push(2); };" |
| "function observer1() { ordering.push(1); };" |
| "function observer3() { ordering.push(3); };" |
| "Object.observe(obj1, observer1);" |
| "Object.observe(obj1, observer2);" |
| "Object.observe(obj1, observer3);" |
| "obj1.foo = 'bar';"); |
| CHECK_EQ(3, CompileRun("ordering.length")->Int32Value()); |
| CHECK_EQ(1, CompileRun("ordering[0]")->Int32Value()); |
| CHECK_EQ(2, CompileRun("ordering[1]")->Int32Value()); |
| CHECK_EQ(3, CompileRun("ordering[2]")->Int32Value()); |
| CompileRun( |
| "ordering = [];" |
| "Object.observe(obj2, observer3);" |
| "Object.observe(obj2, observer2);" |
| "Object.observe(obj2, observer1);" |
| "obj2.foo = 'baz'"); |
| CHECK_EQ(3, CompileRun("ordering.length")->Int32Value()); |
| CHECK_EQ(1, CompileRun("ordering[0]")->Int32Value()); |
| CHECK_EQ(2, CompileRun("ordering[1]")->Int32Value()); |
| CHECK_EQ(3, CompileRun("ordering[2]")->Int32Value()); |
| } |
| |
| TEST(DeliveryOrderingReentrant) { |
| HarmonyIsolate isolate; |
| HandleScope scope; |
| LocalContext context; |
| CompileRun( |
| "var obj = {};" |
| "var reentered = false;" |
| "var ordering = [];" |
| "function observer1() { ordering.push(1); };" |
| "function observer2() {" |
| " if (!reentered) {" |
| " obj.foo = 'baz';" |
| " reentered = true;" |
| " }" |
| " ordering.push(2);" |
| "};" |
| "function observer3() { ordering.push(3); };" |
| "Object.observe(obj, observer1);" |
| "Object.observe(obj, observer2);" |
| "Object.observe(obj, observer3);" |
| "obj.foo = 'bar';"); |
| CHECK_EQ(5, CompileRun("ordering.length")->Int32Value()); |
| CHECK_EQ(1, CompileRun("ordering[0]")->Int32Value()); |
| CHECK_EQ(2, CompileRun("ordering[1]")->Int32Value()); |
| CHECK_EQ(3, CompileRun("ordering[2]")->Int32Value()); |
| // Note that we re-deliver to observers 1 and 2, while observer3 |
| // already received the second record during the first round. |
| CHECK_EQ(1, CompileRun("ordering[3]")->Int32Value()); |
| CHECK_EQ(2, CompileRun("ordering[1]")->Int32Value()); |
| } |
| |
| TEST(DeliveryOrderingDeliverChangeRecords) { |
| HarmonyIsolate isolate; |
| HandleScope scope; |
| LocalContext context; |
| CompileRun( |
| "var obj = {};" |
| "var ordering = [];" |
| "function observer1() { ordering.push(1); if (!obj.b) obj.b = true };" |
| "function observer2() { ordering.push(2); };" |
| "Object.observe(obj, observer1);" |
| "Object.observe(obj, observer2);" |
| "obj.a = 1;" |
| "Object.deliverChangeRecords(observer2);"); |
| CHECK_EQ(4, CompileRun("ordering.length")->Int32Value()); |
| // First, observer2 is called due to deliverChangeRecords |
| CHECK_EQ(2, CompileRun("ordering[0]")->Int32Value()); |
| // Then, observer1 is called when the stack unwinds |
| CHECK_EQ(1, CompileRun("ordering[1]")->Int32Value()); |
| // observer1's mutation causes both 1 and 2 to be reactivated, |
| // with 1 having priority. |
| CHECK_EQ(1, CompileRun("ordering[2]")->Int32Value()); |
| CHECK_EQ(2, CompileRun("ordering[3]")->Int32Value()); |
| } |
| |
| TEST(ObjectHashTableGrowth) { |
| HarmonyIsolate isolate; |
| HandleScope scope; |
| // Initializing this context sets up initial hash tables. |
| LocalContext context; |
| Handle<Value> obj = CompileRun("obj = {};"); |
| Handle<Value> observer = CompileRun( |
| "var ran = false;" |
| "(function() { ran = true })"); |
| { |
| // As does initializing this context. |
| LocalContext context2; |
| context2->Global()->Set(String::New("obj"), obj); |
| context2->Global()->Set(String::New("observer"), observer); |
| CompileRun( |
| "var objArr = [];" |
| // 100 objects should be enough to make the hash table grow |
| // (and thus relocate). |
| "for (var i = 0; i < 100; ++i) {" |
| " objArr.push({});" |
| " Object.observe(objArr[objArr.length-1], function(){});" |
| "}" |
| "Object.observe(obj, observer);"); |
| } |
| // obj is now marked "is_observed", but our map has moved. |
| CompileRun("obj.foo = 'bar'"); |
| CHECK(CompileRun("ran")->BooleanValue()); |
| } |