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// 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: --expose-wasm
let {session, contextGroup, Protocol} = InspectorTest.start('Tests breakable locations in wasm');
utils.load('test/mjsunit/wasm/wasm-module-builder.js');
var builder = new WasmModuleBuilder();
// clang-format off
var func_idx = builder.addFunction('helper', kSig_v_v)
.addLocals({i32_count: 1})
.addBody([
kExprNop,
kExprI32Const, 12,
kExprSetLocal, 0,
]).index;
builder.addFunction('main', kSig_v_i)
.addBody([
kExprGetLocal, 0,
kExprIf, kWasmStmt,
kExprBlock, kWasmStmt,
kExprCallFunction, func_idx,
kExprEnd,
kExprEnd
]).exportAs('main');
// clang-format on
var module_bytes = builder.toArray();
function testFunction(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);
}
var evalWithUrl = (code, url) => Protocol.Runtime.evaluate(
{'expression': code + '\n//# sourceURL=v8://test/' + url});
var setupCode = testFunction.toString() + ';\nvar module_bytes = ' +
JSON.stringify(module_bytes) + ';\nvar instance;';
Protocol.Debugger.enable();
Protocol.Debugger.onScriptParsed(handleScriptParsed);
InspectorTest.log('Running testFunction...');
evalWithUrl(setupCode, 'setup')
.then(() => evalWithUrl('testFunction(module_bytes)', 'runTestFunction'))
.then(getBreakableLocationsForAllWasmScripts)
.then(setAllBreakableLocations)
.then(() => InspectorTest.log('Running wasm code...'))
.then(() => (evalWithUrl('instance.exports.main(1)', 'runWasm'), 0))
.then(waitForAllPauses)
.then(() => InspectorTest.log('Finished!'))
.then(InspectorTest.completeTest);
var allBreakableLocations = [];
var urls = {};
var numScripts = 0;
var wasmScripts = [];
function handleScriptParsed(messageObject) {
var scriptId = messageObject.params.scriptId;
var url = messageObject.params.url;
urls[scriptId] = url;
InspectorTest.log('Script nr ' + numScripts + ' parsed. URL: ' + url);
++numScripts;
if (url.startsWith('wasm://')) {
InspectorTest.log('This is a wasm script (nr ' + wasmScripts.length + ').');
wasmScripts.push(scriptId);
}
}
function printFailure(message) {
if (!message.result) {
InspectorTest.logMessage(message);
}
return message;
}
function printBreakableLocations(message, expectedScriptId, source) {
var lines = source.split('\n');
var locations = message.result.locations;
InspectorTest.log(locations.length + ' breakable location(s):');
for (var i = 0; i < locations.length; ++i) {
if (locations[i].scriptId != expectedScriptId) {
InspectorTest.log(
'SCRIPT ID MISMATCH!! ' + locations[i].scriptId + ' != ' +
expectedScriptId);
}
var line = '<illegal line number>';
if (locations[i].lineNumber < lines.length) {
line = lines[locations[i].lineNumber];
if (locations[i].columnNumber < line.length) {
line = line.substr(0, locations[i].columnNumber) + '>' +
line.substr(locations[i].columnNumber);
}
}
InspectorTest.log(
'[' + i + '] ' + locations[i].lineNumber + ':' +
locations[i].columnNumber + ' || ' + line);
}
}
function checkGetBreakableLocations(wasmScriptNr) {
InspectorTest.log(
'Requesting all breakable locations in wasm script ' + wasmScriptNr);
var scriptId = wasmScripts[wasmScriptNr];
var source;
return Protocol.Debugger.getScriptSource({scriptId: scriptId})
.then(msg => source = msg.result.scriptSource)
.then(
() => Protocol.Debugger.getPossibleBreakpoints(
{start: {lineNumber: 0, columnNumber: 0, scriptId: scriptId}}))
.then(printFailure)
.then(msg => (allBreakableLocations.push(...msg.result.locations), msg))
.then(msg => printBreakableLocations(msg, scriptId, source))
.then(
() => InspectorTest.log(
'Requesting breakable locations in lines [0,3)'))
.then(() => Protocol.Debugger.getPossibleBreakpoints({
start: {lineNumber: 0, columnNumber: 0, scriptId: scriptId},
end: {lineNumber: 3, columnNumber: 0, scriptId: scriptId}
}))
.then(printFailure)
.then(msg => printBreakableLocations(msg, scriptId, source))
.then(
() => InspectorTest.log(
'Requesting breakable locations in lines [4,6)'))
.then(() => Protocol.Debugger.getPossibleBreakpoints({
start: {lineNumber: 4, columnNumber: 0, scriptId: scriptId},
end: {lineNumber: 6, columnNumber: 0, scriptId: scriptId}
}))
.then(printFailure)
.then(msg => printBreakableLocations(msg, scriptId, source));
}
function getBreakableLocationsForAllWasmScripts() {
InspectorTest.log('Querying breakable locations for all wasm scripts now...');
var promise = Promise.resolve();
for (var wasmScriptNr = 0; wasmScriptNr < wasmScripts.length;
++wasmScriptNr) {
promise = promise.then(checkGetBreakableLocations.bind(null, wasmScriptNr));
}
return promise;
}
function locationMatches(loc1, loc2) {
return loc1.scriptId == loc2.scriptId && loc1.lineNumber == loc2.lineNumber &&
loc1.columnNumber == loc2.columnNumber;
}
function locationStr(loc) {
return urls[loc.scriptId] + ':' + loc.lineNumber + ':' + loc.columnNumber;
}
function setBreakpoint(loc) {
InspectorTest.log('Setting at ' + locationStr(loc));
function check(msg) {
if (locationMatches(loc, msg.result.actualLocation)) {
InspectorTest.log("Success!");
} else {
InspectorTest.log("Mismatch!");
InspectorTest.logMessage(msg);
}
}
return Protocol.Debugger.setBreakpoint({'location': loc})
.then(printFailure)
.then(check);
}
function setAllBreakableLocations() {
InspectorTest.log('Setting a breakpoint on each breakable location...');
var promise = Promise.resolve();
for (var loc of allBreakableLocations) {
promise = promise.then(setBreakpoint.bind(null, loc));
}
return promise;
}
function removePausedLocation(msg) {
var topLocation = msg.params.callFrames[0].location;
InspectorTest.log('Stopped at ' + locationStr(topLocation));
for (var i = 0; i < allBreakableLocations.length; ++i) {
if (locationMatches(topLocation, allBreakableLocations[i])) {
allBreakableLocations.splice(i, 1);
--i;
}
}
}
function waitForAllPauses() {
InspectorTest.log('Missing breakpoints: ' + allBreakableLocations.length);
if (allBreakableLocations.length == 0) return;
return Protocol.Debugger.oncePaused()
.then(removePausedLocation)
.then(Protocol.Debugger.resume())
.then(waitForAllPauses);
}
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