From ec0ff7008a75d0cffef44bc5fde2267566a93fea Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Micha=C3=ABl=20Zasso?= Date: Mon, 16 Jul 2018 22:03:01 +0200 Subject: [PATCH] deps: cherry-pick 907d7bc from upstream V8 Original commit message: [promise] Implement Swallowed Rejection Hook. This extends the current Promise Rejection Hook with two new events kPromiseRejectAfterResolved kPromiseResolveAfterResolved which are used to detect (and signal) misuse of the Promise constructor. Specifically the common bug like new Promise((res, rej) => { res(1); throw new Error("something") }); where the error is silently swallowed by the Promise constructor without the user ever noticing can be caught via this hook. Doc: https://goo.gl/2stLUY Bug: v8:7919 Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng Change-Id: I890a7e766cdd1be88db94844fb744f72823dba33 Reviewed-on: https://chromium-review.googlesource.com/1126099 Reviewed-by: Maya Lekova Reviewed-by: Benedikt Meurer Reviewed-by: Yang Guo Commit-Queue: Benedikt Meurer Cr-Commit-Position: refs/heads/master@{#54309} Refs: https://github.com/v8/v8/commit/907d7bcd18c13a04a14eea6699e54167494bf9f9 PR-URL: https://github.com/nodejs/node/pull/21838 Refs: https://github.com/nodejs/promises-debugging/issues/8 Reviewed-By: Gus Caplan Reviewed-By: Benjamin Gruenbaum Reviewed-By: James M Snell Reviewed-By: Yang Guo Reviewed-By: Benedikt Meurer --- common.gypi | 2 +- deps/v8/include/v8.h | 4 +- deps/v8/src/builtins/builtins-promise-gen.cc | 34 +++++- deps/v8/src/builtins/builtins-promise-gen.h | 7 +- deps/v8/src/compiler/js-call-reducer.cc | 4 + deps/v8/src/isolate.cc | 3 +- deps/v8/src/runtime/runtime-promise.cc | 20 ++++ deps/v8/src/runtime/runtime.h | 4 +- deps/v8/test/cctest/test-api.cc | 116 ++++++++++++++----- 9 files changed, 149 insertions(+), 45 deletions(-) diff --git a/common.gypi b/common.gypi index 17948b9da3b7c6..447ff992b46745 100644 --- a/common.gypi +++ b/common.gypi @@ -28,7 +28,7 @@ # Reset this number to 0 on major V8 upgrades. # Increment by one for each non-official patch applied to deps/v8. - 'v8_embedder_string': '-node.16', + 'v8_embedder_string': '-node.17', # Enable disassembler for `--print-code` v8 options 'v8_enable_disassembler': 1, diff --git a/deps/v8/include/v8.h b/deps/v8/include/v8.h index fe8f5a383952f7..389a7c01b0583a 100644 --- a/deps/v8/include/v8.h +++ b/deps/v8/include/v8.h @@ -6394,7 +6394,9 @@ typedef void (*PromiseHook)(PromiseHookType type, Local promise, // --- Promise Reject Callback --- enum PromiseRejectEvent { kPromiseRejectWithNoHandler = 0, - kPromiseHandlerAddedAfterReject = 1 + kPromiseHandlerAddedAfterReject = 1, + kPromiseRejectAfterResolved = 2, + kPromiseResolveAfterResolved = 3, }; class PromiseRejectMessage { diff --git a/deps/v8/src/builtins/builtins-promise-gen.cc b/deps/v8/src/builtins/builtins-promise-gen.cc index 868b45a8316ff5..0a94139fed4945 100644 --- a/deps/v8/src/builtins/builtins-promise-gen.cc +++ b/deps/v8/src/builtins/builtins-promise-gen.cc @@ -247,6 +247,8 @@ Node* PromiseBuiltinsAssembler::CreatePromiseResolvingFunctionsContext( Node* const context = CreatePromiseContext(native_context, kPromiseContextLength); StoreContextElementNoWriteBarrier(context, kPromiseSlot, promise); + StoreContextElementNoWriteBarrier(context, kAlreadyResolvedSlot, + FalseConstant()); StoreContextElementNoWriteBarrier(context, kDebugEventSlot, debug_event); return context; } @@ -733,17 +735,27 @@ TF_BUILTIN(PromiseCapabilityDefaultReject, PromiseBuiltinsAssembler) { Node* const promise = LoadContextElement(context, kPromiseSlot); // 3. Let alreadyResolved be F.[[AlreadyResolved]]. + Label if_already_resolved(this, Label::kDeferred); + Node* const already_resolved = + LoadContextElement(context, kAlreadyResolvedSlot); + // 4. If alreadyResolved.[[Value]] is true, return undefined. - // We use undefined as a marker for the [[AlreadyResolved]] state. - ReturnIf(IsUndefined(promise), UndefinedConstant()); + GotoIf(IsTrue(already_resolved), &if_already_resolved); // 5. Set alreadyResolved.[[Value]] to true. - StoreContextElementNoWriteBarrier(context, kPromiseSlot, UndefinedConstant()); + StoreContextElementNoWriteBarrier(context, kAlreadyResolvedSlot, + TrueConstant()); // 6. Return RejectPromise(promise, reason). Node* const debug_event = LoadContextElement(context, kDebugEventSlot); Return(CallBuiltin(Builtins::kRejectPromise, context, promise, reason, debug_event)); + + BIND(&if_already_resolved); + { + Return(CallRuntime(Runtime::kPromiseRejectAfterResolved, context, promise, + reason)); + } } // ES #sec-promise-resolve-functions @@ -755,16 +767,26 @@ TF_BUILTIN(PromiseCapabilityDefaultResolve, PromiseBuiltinsAssembler) { Node* const promise = LoadContextElement(context, kPromiseSlot); // 3. Let alreadyResolved be F.[[AlreadyResolved]]. + Label if_already_resolved(this, Label::kDeferred); + Node* const already_resolved = + LoadContextElement(context, kAlreadyResolvedSlot); + // 4. If alreadyResolved.[[Value]] is true, return undefined. - // We use undefined as a marker for the [[AlreadyResolved]] state. - ReturnIf(IsUndefined(promise), UndefinedConstant()); + GotoIf(IsTrue(already_resolved), &if_already_resolved); // 5. Set alreadyResolved.[[Value]] to true. - StoreContextElementNoWriteBarrier(context, kPromiseSlot, UndefinedConstant()); + StoreContextElementNoWriteBarrier(context, kAlreadyResolvedSlot, + TrueConstant()); // The rest of the logic (and the catch prediction) is // encapsulated in the dedicated ResolvePromise builtin. Return(CallBuiltin(Builtins::kResolvePromise, context, promise, resolution)); + + BIND(&if_already_resolved); + { + Return(CallRuntime(Runtime::kPromiseResolveAfterResolved, context, promise, + resolution)); + } } TF_BUILTIN(PromiseConstructorLazyDeoptContinuation, PromiseBuiltinsAssembler) { diff --git a/deps/v8/src/builtins/builtins-promise-gen.h b/deps/v8/src/builtins/builtins-promise-gen.h index 694cea28c06b5a..0920c33cf886a5 100644 --- a/deps/v8/src/builtins/builtins-promise-gen.h +++ b/deps/v8/src/builtins/builtins-promise-gen.h @@ -17,11 +17,12 @@ typedef compiler::CodeAssemblerState CodeAssemblerState; class PromiseBuiltinsAssembler : public CodeStubAssembler { public: enum PromiseResolvingFunctionContextSlot { - // The promise which resolve/reject callbacks fulfill. If this is - // undefined, then we've already visited this callback and it - // should be a no-op. + // The promise which resolve/reject callbacks fulfill. kPromiseSlot = Context::MIN_CONTEXT_SLOTS, + // Whether the callback was already invoked. + kAlreadyResolvedSlot, + // Whether to trigger a debug event or not. Used in catch // prediction. kDebugEventSlot, diff --git a/deps/v8/src/compiler/js-call-reducer.cc b/deps/v8/src/compiler/js-call-reducer.cc index 8e5034cde07d64..f226c7bd5dbd4f 100644 --- a/deps/v8/src/compiler/js-call-reducer.cc +++ b/deps/v8/src/compiler/js-call-reducer.cc @@ -5345,6 +5345,10 @@ Reduction JSCallReducer::ReducePromiseConstructor(Node* node) { graph()->NewNode(simplified()->StoreField(AccessBuilder::ForContextSlot( PromiseBuiltinsAssembler::kPromiseSlot)), promise_context, promise, effect, control); + effect = graph()->NewNode( + simplified()->StoreField(AccessBuilder::ForContextSlot( + PromiseBuiltinsAssembler::kAlreadyResolvedSlot)), + promise_context, jsgraph()->FalseConstant(), effect, control); effect = graph()->NewNode( simplified()->StoreField(AccessBuilder::ForContextSlot( PromiseBuiltinsAssembler::kDebugEventSlot)), diff --git a/deps/v8/src/isolate.cc b/deps/v8/src/isolate.cc index 7ef0214f4a6462..849e4ba5be0a3d 100644 --- a/deps/v8/src/isolate.cc +++ b/deps/v8/src/isolate.cc @@ -3875,10 +3875,9 @@ void Isolate::SetPromiseRejectCallback(PromiseRejectCallback callback) { void Isolate::ReportPromiseReject(Handle promise, Handle value, v8::PromiseRejectEvent event) { - DCHECK_EQ(v8::Promise::kRejected, promise->status()); if (promise_reject_callback_ == nullptr) return; Handle stack_trace; - if (event == v8::kPromiseRejectWithNoHandler && value->IsJSObject()) { + if (event != v8::kPromiseHandlerAddedAfterReject && value->IsJSObject()) { stack_trace = GetDetailedStackTrace(Handle::cast(value)); } promise_reject_callback_(v8::PromiseRejectMessage( diff --git a/deps/v8/src/runtime/runtime-promise.cc b/deps/v8/src/runtime/runtime-promise.cc index f5b9db3c028b0e..6c4f7d69eb7dbe 100644 --- a/deps/v8/src/runtime/runtime-promise.cc +++ b/deps/v8/src/runtime/runtime-promise.cc @@ -38,6 +38,26 @@ RUNTIME_FUNCTION(Runtime_PromiseRejectEventFromStack) { return isolate->heap()->undefined_value(); } +RUNTIME_FUNCTION(Runtime_PromiseRejectAfterResolved) { + DCHECK_EQ(2, args.length()); + HandleScope scope(isolate); + CONVERT_ARG_HANDLE_CHECKED(JSPromise, promise, 0); + CONVERT_ARG_HANDLE_CHECKED(Object, reason, 1); + isolate->ReportPromiseReject(promise, reason, + v8::kPromiseRejectAfterResolved); + return isolate->heap()->undefined_value(); +} + +RUNTIME_FUNCTION(Runtime_PromiseResolveAfterResolved) { + DCHECK_EQ(2, args.length()); + HandleScope scope(isolate); + CONVERT_ARG_HANDLE_CHECKED(JSPromise, promise, 0); + CONVERT_ARG_HANDLE_CHECKED(Object, resolution, 1); + isolate->ReportPromiseReject(promise, resolution, + v8::kPromiseResolveAfterResolved); + return isolate->heap()->undefined_value(); +} + RUNTIME_FUNCTION(Runtime_PromiseRevokeReject) { DCHECK_EQ(1, args.length()); HandleScope scope(isolate); diff --git a/deps/v8/src/runtime/runtime.h b/deps/v8/src/runtime/runtime.h index 37ce74e8250f2c..184b9c5ca44535 100644 --- a/deps/v8/src/runtime/runtime.h +++ b/deps/v8/src/runtime/runtime.h @@ -433,7 +433,9 @@ namespace internal { F(PromiseRevokeReject, 1, 1) \ F(PromiseStatus, 1, 1) \ F(RejectPromise, 3, 1) \ - F(ResolvePromise, 2, 1) + F(ResolvePromise, 2, 1) \ + F(PromiseRejectAfterResolved, 2, 1) \ + F(PromiseResolveAfterResolved, 2, 1) #define FOR_EACH_INTRINSIC_PROXY(F) \ F(CheckProxyGetSetTrapResult, 2, 1) \ diff --git a/deps/v8/test/cctest/test-api.cc b/deps/v8/test/cctest/test-api.cc index 637dc7d2062f9a..793711fa80c93d 100644 --- a/deps/v8/test/cctest/test-api.cc +++ b/deps/v8/test/cctest/test-api.cc @@ -17625,6 +17625,8 @@ TEST(RethrowBogusErrorStackTrace) { v8::PromiseRejectEvent reject_event = v8::kPromiseRejectWithNoHandler; int promise_reject_counter = 0; int promise_revoke_counter = 0; +int promise_reject_after_resolved_counter = 0; +int promise_resolve_after_resolved_counter = 0; int promise_reject_msg_line_number = -1; int promise_reject_msg_column_number = -1; int promise_reject_line_number = -1; @@ -17634,40 +17636,56 @@ int promise_reject_frame_count = -1; void PromiseRejectCallback(v8::PromiseRejectMessage reject_message) { v8::Local global = CcTest::global(); v8::Local context = CcTest::isolate()->GetCurrentContext(); - CHECK_EQ(v8::Promise::PromiseState::kRejected, + CHECK_NE(v8::Promise::PromiseState::kPending, reject_message.GetPromise()->State()); - if (reject_message.GetEvent() == v8::kPromiseRejectWithNoHandler) { - promise_reject_counter++; - global->Set(context, v8_str("rejected"), reject_message.GetPromise()) - .FromJust(); - global->Set(context, v8_str("value"), reject_message.GetValue()).FromJust(); - v8::Local message = v8::Exception::CreateMessage( - CcTest::isolate(), reject_message.GetValue()); - v8::Local stack_trace = message->GetStackTrace(); - - promise_reject_msg_line_number = message->GetLineNumber(context).FromJust(); - promise_reject_msg_column_number = - message->GetStartColumn(context).FromJust() + 1; - - if (!stack_trace.IsEmpty()) { - promise_reject_frame_count = stack_trace->GetFrameCount(); - if (promise_reject_frame_count > 0) { - CHECK(stack_trace->GetFrame(0) - ->GetScriptName() - ->Equals(context, v8_str("pro")) - .FromJust()); - promise_reject_line_number = stack_trace->GetFrame(0)->GetLineNumber(); - promise_reject_column_number = stack_trace->GetFrame(0)->GetColumn(); - } else { - promise_reject_line_number = -1; - promise_reject_column_number = -1; + switch (reject_message.GetEvent()) { + case v8::kPromiseRejectWithNoHandler: { + promise_reject_counter++; + global->Set(context, v8_str("rejected"), reject_message.GetPromise()) + .FromJust(); + global->Set(context, v8_str("value"), reject_message.GetValue()) + .FromJust(); + v8::Local message = v8::Exception::CreateMessage( + CcTest::isolate(), reject_message.GetValue()); + v8::Local stack_trace = message->GetStackTrace(); + + promise_reject_msg_line_number = + message->GetLineNumber(context).FromJust(); + promise_reject_msg_column_number = + message->GetStartColumn(context).FromJust() + 1; + + if (!stack_trace.IsEmpty()) { + promise_reject_frame_count = stack_trace->GetFrameCount(); + if (promise_reject_frame_count > 0) { + CHECK(stack_trace->GetFrame(0) + ->GetScriptName() + ->Equals(context, v8_str("pro")) + .FromJust()); + promise_reject_line_number = + stack_trace->GetFrame(0)->GetLineNumber(); + promise_reject_column_number = stack_trace->GetFrame(0)->GetColumn(); + } else { + promise_reject_line_number = -1; + promise_reject_column_number = -1; + } } + break; + } + case v8::kPromiseHandlerAddedAfterReject: { + promise_revoke_counter++; + global->Set(context, v8_str("revoked"), reject_message.GetPromise()) + .FromJust(); + CHECK(reject_message.GetValue().IsEmpty()); + break; + } + case v8::kPromiseRejectAfterResolved: { + promise_reject_after_resolved_counter++; + break; + } + case v8::kPromiseResolveAfterResolved: { + promise_resolve_after_resolved_counter++; + break; } - } else { - promise_revoke_counter++; - global->Set(context, v8_str("revoked"), reject_message.GetPromise()) - .FromJust(); - CHECK(reject_message.GetValue().IsEmpty()); } } @@ -17690,6 +17708,8 @@ v8::Local RejectValue() { void ResetPromiseStates() { promise_reject_counter = 0; promise_revoke_counter = 0; + promise_reject_after_resolved_counter = 0; + promise_resolve_after_resolved_counter = 0; promise_reject_msg_line_number = -1; promise_reject_msg_column_number = -1; promise_reject_line_number = -1; @@ -17915,6 +17935,40 @@ TEST(PromiseRejectCallback) { CHECK_EQ(0, promise_revoke_counter); CHECK(RejectValue()->Equals(env.local(), v8_str("sss")).FromJust()); + ResetPromiseStates(); + + // Swallowed exceptions in the Promise constructor. + CompileRun( + "var v0 = new Promise(\n" + " function(res, rej) {\n" + " res(1);\n" + " throw new Error();\n" + " }\n" + ");\n"); + CHECK(!GetPromise("v0")->HasHandler()); + CHECK_EQ(0, promise_reject_counter); + CHECK_EQ(0, promise_revoke_counter); + CHECK_EQ(1, promise_reject_after_resolved_counter); + CHECK_EQ(0, promise_resolve_after_resolved_counter); + + ResetPromiseStates(); + + // Duplication resolve. + CompileRun( + "var r;\n" + "var y0 = new Promise(\n" + " function(res, rej) {\n" + " r = res;\n" + " throw new Error();\n" + " }\n" + ");\n" + "r(1);\n"); + CHECK(!GetPromise("y0")->HasHandler()); + CHECK_EQ(1, promise_reject_counter); + CHECK_EQ(0, promise_revoke_counter); + CHECK_EQ(0, promise_reject_after_resolved_counter); + CHECK_EQ(1, promise_resolve_after_resolved_counter); + // Test stack frames. env->GetIsolate()->SetCaptureStackTraceForUncaughtExceptions(true);