v8/test/debugger/debug/side-effect/debug-evaluate-no-side-effect-async.js
Simon Zünd 230e4ed0e1 Mark intrinsics AsyncFunction{Enter,Reject,Resolve} as side-effect free
This fixes the DevTools console preview when using REPL mode.
AsyncFunction* intriniscs are side-effect free and marking them as such
is correct.

Bug: chromium:1043151
Change-Id: Ie0c36507b98b0c12f3d627c34102c04c27358ff2
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2010106
Reviewed-by: Benedikt Meurer <bmeurer@chromium.org>
Commit-Queue: Simon Zünd <szuend@chromium.org>
Cr-Commit-Position: refs/heads/master@{#65876}
2020-01-21 08:45:17 +00:00

66 lines
1.4 KiB
JavaScript

// Copyright 2017 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.
// Test that asynchronous features do not work with
// side-effect free debug-evaluate.
Debug = debug.Debug
var exception = null;
function* generator() {
yield 1;
}
async function async() {
return 1;
}
var g = generator();
var p = new Promise(() => {});
function listener(event, exec_state, event_data, data) {
if (event != Debug.DebugEvent.Break) return;
try {
function fail(source) {
assertThrows(() => exec_state.frame(0).evaluate(source, true),
EvalError);
}
fail("new Promise()");
fail("generator()");
fail("g.next()");
fail("Promise.resolve()");
fail("Promise.reject()");
fail("p.then(() => {})");
fail("p.catch(() => {})");
fail("p.finally(() => {})");
fail("Promise.all([p, p])");
fail("Promise.race([p, p])");
fail("(async function() { await 1; })()");
// Calling (but not awaiting) non-side-effecting async functions
// should be fine.
function succeed(source) {
exec_state.frame(0).evaluate(source, true);
}
succeed("async()");
succeed("(async function() {})()");
} catch (e) {
exception = e;
print(e, e.stack);
};
};
// Add the debug event listener.
Debug.setListener(listener);
function f() {
debugger;
};
f();
assertNull(exception);