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// 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.
let {session, contextGroup, Protocol} = InspectorTest.start(
'Test retrieving scope information when pausing in wasm functions');
session.setupScriptMap();
Protocol.Debugger.enable();
let evaluate = code => Protocol.Runtime.evaluate({expression: code});
(async function test() {
let scriptId = await instantiateWasm();
await setBreakpoint(scriptId);
printPauseLocationsAndContinue();
await evaluate('instance.exports.main(4)');
InspectorTest.log('exports.main returned. Test finished.');
InspectorTest.completeTest();
})();
async function printPauseLocationsAndContinue() {
while (true) {
let msg = await Protocol.Debugger.oncePaused();
let loc = msg.params.callFrames[0].location;
InspectorTest.log('Paused:');
await session.logSourceLocation(loc);
await dumpScopeChainsOnPause(msg);
Protocol.Debugger.stepOver();
}
}
async function instantiateWasm() {
utils.load('test/mjsunit/wasm/wasm-module-builder.js');
var builder = new WasmModuleBuilder();
builder.addGlobal(kWasmI32, true);
builder.addFunction('func', kSig_v_i)
.addLocals(
{i32_count: 1, i64_count: 1, f64_count: 1},
['i32Arg', undefined, 'i64_local', 'unicode☼f64'])
.addBody([
// Set param 0 to 11.
kExprI32Const, 11, kExprSetLocal, 0,
// Set local 1 to 47.
kExprI32Const, 47, kExprSetLocal, 1,
// Set local 2 to 0x7FFFFFFFFFFFFFFF (max i64).
kExprI64Const, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0,
kExprSetLocal, 2,
// Set local 2 to 0x8000000000000000 (min i64).
kExprI64Const, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x7f,
kExprSetLocal, 2,
// Set local 3 to 1/7.
kExprI32Const, 1, kExprF64UConvertI32, kExprI32Const, 7,
kExprF64UConvertI32, kExprF64Div, kExprSetLocal, 3,
// Set global 0 to 15
kExprI32Const, 15, kExprSetGlobal, 0,
])
.exportAs('main');
var module_bytes = builder.toArray();
function instantiate(bytes) {
var buffer = new ArrayBuffer(bytes.length);
var view = new Uint8Array(buffer);
for (var i = 0; i < bytes.length; ++i) {
view[i] = bytes[i] | 0;
}
var module = new WebAssembly.Module(buffer);
// Set global variable.
instance = new WebAssembly.Instance(module);
}
InspectorTest.log('Installing code and global variable.');
await evaluate('var instance;\n' + instantiate.toString());
InspectorTest.log('Calling instantiate function.');
evaluate('instantiate(' + JSON.stringify(module_bytes) + ')');
return waitForWasmScript();
}
async function setBreakpoint(scriptId) {
InspectorTest.log('Setting breakpoint on line 2 (first instruction)');
let breakpoint = await Protocol.Debugger.setBreakpoint(
{'location': {'scriptId': scriptId, 'lineNumber': 2}});
printFailure(breakpoint);
InspectorTest.logMessage(breakpoint.result.actualLocation);
}
function printFailure(message) {
if (!message.result) {
InspectorTest.logMessage(message);
}
return message;
}
async function waitForWasmScript() {
InspectorTest.log('Waiting for wasm script to be parsed.');
while (true) {
let script_msg = await Protocol.Debugger.onceScriptParsed();
let url = script_msg.params.url;
if (!url.startsWith('wasm://')) {
continue;
}
InspectorTest.log('Got wasm script!');
return script_msg.params.scriptId;
}
}
async function getScopeValues(value) {
if (value.type != 'object') {
InspectorTest.log('Expected object. Found:');
InspectorTest.logObject(value);
return;
}
let msg = await Protocol.Runtime.getProperties({objectId: value.objectId});
printFailure(msg);
let printProperty = elem => '"' + elem.name + '"' +
': ' + elem.value.value + ' (' + elem.value.type + ')';
return msg.result.result.map(printProperty).join(', ');
}
async function dumpScopeProperties(message) {
printFailure(message);
for (var value of message.result.result) {
var value_str = await getScopeValues(value.value);
InspectorTest.log(' ' + value.name + ': ' + value_str);
}
}
async function dumpScopeChainsOnPause(message) {
InspectorTest.log(`Scope:`);
for (var frame of message.params.callFrames) {
var isWasmFrame = /^wasm/.test(frame.url);
var functionName = frame.functionName || '(anonymous)';
var lineNumber = frame.location ? frame.location.lineNumber : frame.lineNumber;
var columnNumber = frame.location ? frame.location.columnNumber : frame.columnNumber;
InspectorTest.log(`at ${functionName} (${lineNumber}:${columnNumber}):`);
for (var scope of frame.scopeChain) {
InspectorTest.logObject(' - scope (' + scope.type + '):');
if (!isWasmFrame && scope.type == 'global') {
// Skip global scope for non wasm-functions.
InspectorTest.logObject(' -- skipped globals');
continue;
}
var properties = await Protocol.Runtime.getProperties(
{'objectId': scope.object.objectId});
await dumpScopeProperties(properties);
}
}
InspectorTest.log();
}
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