400b6e7f9d
This is mostly an auto-conversion done by several tools. - use let / const - use arrow functions - use template strings There are some additional manual rewrite required to modernize the code further. Change-Id: I63a7a43b05b14b33ad9941350d3d5f26aab10ba0 Bug: v8:10667 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2519564 Reviewed-by: Sathya Gunasekaran <gsathya@chromium.org> Commit-Queue: Camillo Bruni <cbruni@chromium.org> Cr-Commit-Position: refs/heads/master@{#71080}
95 lines
2.4 KiB
JavaScript
95 lines
2.4 KiB
JavaScript
// Copyright 2017 the V8 project authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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import { Processor } from "./system-analyzer/processor.mjs";
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import { WebInspector } from "./sourcemap.mjs";
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import { BaseArgumentsProcessor } from "./arguments.mjs";
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function processArguments(args) {
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const processor = new ArgumentsProcessor(args);
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if (processor.parse()) {
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return processor.result();
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} else {
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processor.printUsageAndExit();
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}
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}
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/**
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* A thin wrapper around shell's 'read' function showing a file name on error.
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*/
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export function readFile(fileName) {
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try {
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return read(fileName);
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} catch (e) {
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print(fileName + ': ' + (e.message || e));
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throw e;
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}
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}
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function initSourceMapSupport() {
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// Pull dev tools source maps into our name space.
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SourceMap = WebInspector.SourceMap;
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// Overwrite the load function to load scripts synchronously.
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SourceMap.load = function(sourceMapURL) {
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const content = readFile(sourceMapURL);
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const sourceMapObject = (JSON.parse(content));
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return new SourceMap(sourceMapURL, sourceMapObject);
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};
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}
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class ArgumentsProcessor extends BaseArgumentsProcessor {
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getArgsDispatch() {
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return {
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'--range': ['range', 'auto,auto',
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'Specify the range limit as [start],[end]'],
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'--source-map': ['sourceMap', null,
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'Specify the source map that should be used for output']
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};
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}
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getDefaultResults() {
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return {
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logFileName: 'v8.log',
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range: 'auto,auto',
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};
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}
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}
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const params = processArguments(arguments);
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let sourceMap = null;
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if (params.sourceMap) {
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initSourceMapSupport();
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sourceMap = SourceMap.load(params.sourceMap);
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}
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const processor = new Processor();
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processor.processLogFile(params.logFileName);
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const typeAccumulator = new Map();
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const accumulator = {
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__proto__: null,
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LoadGlobalIC: 0,
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StoreGlobalIC: 0,
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LoadIC: 0,
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StoreIC: 0,
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KeyedLoadIC: 0,
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KeyedStoreIC: 0,
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StoreInArrayLiteralIC: 0,
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}
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for (const ic of processor.icTimeline.all) {
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print(
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ic.type + ' (' + ic.oldState + '->' + ic.newState + ic.modifier + ') at ' +
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ic.filePosition + ' ' + ic.key +
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' (map 0x' + ic.map.toString(16) + ')' +
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(ic.reason ? ` ${ic.reason}` : '') + ' time: ' + ic.time);
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accumulator[ic.type]++;
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}
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print("========================================");
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for (const key of Object.keys(accumulator)) {
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print(key + ": " + accumulator[key]);
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}
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