v8/test/inspector/debugger/suspended-generator-scopes.js
Simon Zünd 735401e1fb [inspector] Disable [[Scopes]] internal property
We don't remove the code just yet in case we need to re-enable the
feature. This could be in case we discover workflows not covered by
the "Scope View" and the scopes we report on "Debugger.paused".

R=kimanh@chromium.org

Bug: chromium:1365858
Change-Id: I636cc861af932156944a3f6e0a149cce0f939329
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3905185
Reviewed-by: Kim-Anh Tran <kimanh@chromium.org>
Commit-Queue: Simon Zünd <szuend@chromium.org>
Cr-Commit-Position: refs/heads/main@{#83379}
2022-09-22 07:12:24 +00:00

72 lines
2.4 KiB
JavaScript

// Copyright 2016 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: --no-experimental-remove-internal-scopes-property
let {session, contextGroup, Protocol} = InspectorTest.start('Tests that suspended generators produce scopes');
contextGroup.addScript(`
function *gen(a) {
var b = 42;
yield a;
return b;
}
function testSuspendedGenerator() {
var g = gen(420);
g.next();
debugger;
return g;
}`);
InspectorTest.runAsyncTestSuite([
async function testScopesPaused() {
Protocol.Debugger.enable();
Protocol.Runtime.evaluate({expression: 'testSuspendedGenerator()'});
let {params:{callFrames:[callFrame]}} = await Protocol.Debugger.oncePaused();
// Current local scope.
let localScope = callFrame.scopeChain.find(scope => scope.type === 'local');
let variables = (await Protocol.Runtime.getProperties({
objectId: localScope.object.objectId
})).result.result;
let genObjectId =
variables.find(variable => variable.name === 'g').value.objectId;
let {result:{internalProperties}} = await Protocol.Runtime.getProperties({
objectId: genObjectId
});
// Generator [[Scopes]].
let scopes = internalProperties.find(prop => prop.name === '[[Scopes]]');
let {result:{result}} = await Protocol.Runtime.getProperties({
objectId: scopes.value.objectId
});
// Locals from generator.
let scope = result.find(scope => scope.value.description === 'Local (gen)');
({result:{result}} = await Protocol.Runtime.getProperties({
objectId: scope.value.objectId
}));
InspectorTest.logMessage(result);
await Protocol.Debugger.disable();
},
async function testScopesNonPaused() {
let {result:{result:{objectId}}} = await Protocol.Runtime.evaluate({
expression: 'gen(430)'
});
let {result:{internalProperties}} = await Protocol.Runtime.getProperties({
objectId
});
// Generator [[Scopes]].
let scopes = internalProperties.find(prop => prop.name === '[[Scopes]]');
let {result:{result}} = await Protocol.Runtime.getProperties({
objectId: scopes.value.objectId
});
// Locals from generator.
let scope = result.find(scope => scope.value.description === 'Local (gen)');
({result:{result}} = await Protocol.Runtime.getProperties({
objectId: scope.value.objectId
}));
InspectorTest.logMessage(result);
}
]);