mirror of
https://github.com/fluencelabs/assemblyscript
synced 2025-04-25 23:12:19 +00:00
06f99406be
Starting with explicit loads and stores as part of the respective type namespaces. Might become handy for use with portable code, because these can be polyfilled, while load<T> and store<T> can't.
858 lines
26 KiB
JavaScript
858 lines
26 KiB
JavaScript
/**
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* Compiler frontend for node.js
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*
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* Uses the low-level API exported from src/index.ts so it works with the compiler compiled to
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* JavaScript as well as the compiler compiled to WebAssembly (eventually). Runs the sources
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* directly through ts-node if distribution files are not present (indicated by a `-dev` version).
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*
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* Can also be packaged as a bundle suitable for in-browser use with the standard library injected
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* in the build step. See dist/asc.js for the bundle and webpack.config.js for building details.
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*
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* @module asc
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*/
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const fs = require("fs");
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const path = require("path");
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const utf8 = require("@protobufjs/utf8");
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const EOL = process.platform === "win32" ? "\r\n" : "\n";
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// Use distribution files if present, otherwise run the sources directly
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var assemblyscript, isDev;
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(() => {
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try {
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assemblyscript = require("../dist/assemblyscript.js");
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isDev = false;
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try { require("source-map-support").install(); } catch (e) {/* optional */}
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} catch (e) {
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try {
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require("ts-node").register({ project: path.join(__dirname, "..", "src", "tsconfig.json") });
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require("../src/glue/js");
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assemblyscript = require("../src");
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isDev = true;
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} catch (e) {
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// last resort: same directory CommonJS
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assemblyscript = eval("require('./assemblyscript')");
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isDev = false;
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}
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}
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})();
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/** Whether this is a webpack bundle or not. */
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exports.isBundle = typeof BUNDLE_VERSION === "string";
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/** Whether asc runs the sources directly or not. */
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exports.isDev = isDev;
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/** AssemblyScript veresion. */
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exports.version = exports.isBundle ? BUNDLE_VERSION : require("../package.json").version;
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/** Available options. */
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exports.options = require("./asc.json");
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/** Common root used in source maps. */
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exports.sourceMapRoot = "assemblyscript:///";
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/** Prefix used for library files. */
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exports.libraryPrefix = assemblyscript.LIBRARY_PREFIX;
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/** Default Binaryen optimization level. */
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exports.defaultOptimizeLevel = 2;
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/** Default Binaryen shrink level. */
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exports.defaultShrinkLevel = 1;
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/** Bundled library files. */
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exports.libraryFiles = exports.isBundle ? BUNDLE_LIBRARY : (() => { // set up if not a bundle
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const libDir = path.join(__dirname, "..", "std", "assembly");
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const libFiles = require("glob").sync("**/*.ts", { cwd: libDir });
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const bundled = {};
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libFiles.forEach(file => bundled[file.replace(/\.ts$/, "")] = fs.readFileSync(path.join(libDir, file), "utf8" ));
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return bundled;
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})();
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/** Bundled definition files. */
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exports.definitionFiles = exports.isBundle ? BUNDLE_DEFINITIONS : (() => { // set up if not a bundle
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const stdDir = path.join(__dirname, "..", "std");
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return {
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"assembly": fs.readFileSync(path.join(stdDir, "assembly.d.ts"), "utf8"),
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"portable": fs.readFileSync(path.join(stdDir, "portable.d.ts"), "utf8")
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};
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})();
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/** Convenience function that parses and compiles source strings directly. */
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exports.compileString = (sources, options) => {
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if (typeof sources === "string") sources = { "input.ts": sources };
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const output = Object.create({
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stdout: createMemoryStream(),
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stderr: createMemoryStream(),
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binary: null,
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text: null
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});
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exports.main([
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"--binaryFile", "binary",
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"--textFile", "text",
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...Object.keys(options || {}).map(arg => `--${arg}=${options[arg]}`),
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...Object.keys(sources),
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], {
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stdout: output.stdout,
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stderr: output.stderr,
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readFile: name => sources.hasOwnProperty(name) ? sources[name] : null,
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writeFile: (name, contents) => output[name] = contents,
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listFiles: () => []
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});
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return output;
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}
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/** Runs the command line utility using the specified arguments array. */
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exports.main = function main(argv, options, callback) {
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if (typeof options === "function") {
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callback = options;
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options = {};
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} else if (!options) {
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options = {};
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}
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const stdout = options.stdout || process.stdout;
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const stderr = options.stderr || process.stderr;
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const readFile = options.readFile || readFileNode;
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const writeFile = options.writeFile || writeFileNode;
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const listFiles = options.listFiles || listFilesNode;
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const stats = options.stats || createStats();
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// All of the above must be specified in browser environments
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if (!stdout) throw Error("'options.stdout' must be specified");
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if (!stderr) throw Error("'options.stderr' must be specified");
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if (!fs.readFileSync) {
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if (readFile === readFileNode) throw Error("'options.readFile' must be specified");
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if (writeFile === writeFileNode) throw Error("'options.writeFile' must be specified");
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if (listFiles === listFilesNode) throw Error("'options.listFiles' must be specified");
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}
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const args = parseArguments(argv);
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const indent = 24;
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// Use default callback if none is provided
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if (!callback) callback = function defaultCallback(err) {
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var code = 0;
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if (err) {
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stderr.write(err.stack + EOL);
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code = 1;
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}
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return code;
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};
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// Just print the version if requested
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if (args.version) {
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stdout.write("Version " + exports.version + (isDev ? "-dev" : "") + EOL);
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return callback(null);
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}
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// Print the help message if requested or no source files are provided
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if (args.help || args._.length < 1) {
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const opts = [];
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Object.keys(exports.options).forEach(name => {
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var option = exports.options[name];
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var text = " ";
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text += "--" + name;
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if (option.aliases && option.aliases[0].length === 1) {
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text += ", -" + option.aliases[0];
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}
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while (text.length < indent) {
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text += " ";
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}
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if (Array.isArray(option.desc)) {
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opts.push(text + option.desc[0] + option.desc.slice(1).map(line => {
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for (let i = 0; i < indent; ++i) {
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line = " " + line;
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}
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return EOL + line;
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}).join(""));
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} else {
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opts.push(text + option.desc);
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}
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});
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(args.help ? stdout : stderr).write([
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"Version " + exports.version + (isDev ? "-dev" : ""),
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"Syntax: asc [entryFile ...] [options]",
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"",
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"Examples: asc hello.ts",
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" asc hello.ts -b hello.wasm -t hello.wat",
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" asc hello1.ts hello2.ts -b -O > hello.wasm",
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"",
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"Options:"
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].concat(opts).join(EOL) + EOL);
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return callback(null);
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}
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// Set up base directory
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const baseDir = args.baseDir ? path.resolve(args.baseDir) : ".";
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// Begin parsing
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var parser = null;
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// Include library files
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if (!args.noLib) { // bundled
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Object.keys(exports.libraryFiles).forEach(libPath => {
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if (libPath.indexOf("/") >= 0) return; // in sub-directory: imported on demand
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stats.parseCount++;
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stats.parseTime += measure(() => {
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parser = assemblyscript.parseFile(
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exports.libraryFiles[libPath],
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exports.libraryPrefix + libPath + ".ts",
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false,
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parser
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);
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});
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});
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}
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const customLibDirs = [];
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if (args.lib) {
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if (typeof args.lib === "string") args.lib = args.lib.split(",");
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Array.prototype.push.apply(customLibDirs, args.lib.map(lib => lib.trim()));
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for (let i = 0, k = customLibDirs.length; i < k; ++i) { // custom
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let libDir = customLibDirs[i];
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let libFiles;
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if (libDir.endsWith(".ts")) {
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libFiles = [ path.basename(libDir) ];
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libDir = path.dirname(libDir);
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} else {
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libFiles = listFiles(libDir);
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}
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for (let j = 0, l = libFiles.length; j < l; ++j) {
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let libPath = libFiles[j];
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let libText = readFile(path.join(libDir, libPath));
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if (libText === null) return callback(Error("Library file '" + libPath + "' not found."));
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stats.parseCount++;
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stats.parseTime += measure(() => {
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parser = assemblyscript.parseFile(
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libText,
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exports.libraryPrefix + libPath,
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false,
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parser
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);
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});
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}
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}
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}
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// Include entry files
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for (let i = 0, k = args._.length; i < k; ++i) {
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const filename = args._[i];
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let sourcePath = filename.replace(/\\/g, "/").replace(/(\.ts|\/)$/, "");
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// Try entryPath.ts, then entryPath/index.ts
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let sourceText = readFile(path.join(baseDir, sourcePath) + ".ts");
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if (sourceText === null) {
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sourceText = readFile(path.join(baseDir, sourcePath, "index.ts"));
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if (sourceText === null) {
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return callback(Error("Entry file '" + sourcePath + ".ts' not found."));
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} else {
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sourcePath += "/index.ts";
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}
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} else {
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sourcePath += ".ts";
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}
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stats.parseCount++;
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stats.parseTime += measure(() => {
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parser = assemblyscript.parseFile(sourceText, sourcePath, true, parser);
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});
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// Process backlog
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while ((sourcePath = parser.nextFile()) != null) {
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let found = false;
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// Load library file if explicitly requested
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if (sourcePath.startsWith(exports.libraryPrefix)) {
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const plainName = sourcePath.substring(exports.libraryPrefix.length);
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const indexName = sourcePath.substring(exports.libraryPrefix.length) + "/index";
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if (exports.libraryFiles.hasOwnProperty(plainName)) {
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sourceText = exports.libraryFiles[plainName];
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sourcePath = exports.libraryPrefix + plainName + ".ts";
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} else if (exports.libraryFiles.hasOwnProperty(indexName)) {
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sourceText = exports.libraryFiles[indexName];
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sourcePath = exports.libraryPrefix + indexName + ".ts";
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} else {
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for (let i = 0, k = customLibDirs.length; i < k; ++i) {
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const dir = customLibDirs[i];
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sourceText = readFile(path.join(dir, plainName + ".ts"));
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if (sourceText !== null) {
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sourcePath = exports.libraryPrefix + plainName + ".ts";
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break;
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} else {
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sourceText = readFile(path.join(dir, indexName + ".ts"));
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if (sourceText !== null) {
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sourcePath = exports.libraryPrefix + indexName + ".ts";
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break;
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}
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}
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}
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}
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// Otherwise try nextFile.ts, nextFile/index.ts, ~lib/nextFile.ts, ~lib/nextFile/index.ts
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} else {
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const plainName = sourcePath;
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const indexName = sourcePath + "/index";
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sourceText = readFile(path.join(baseDir, plainName + ".ts"));
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if (sourceText !== null) {
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sourcePath = plainName + ".ts";
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} else {
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sourceText = readFile(path.join(baseDir, indexName + ".ts"));
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if (sourceText !== null) {
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sourcePath = indexName + ".ts";
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} else if (!plainName.startsWith(".")) {
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if (exports.libraryFiles.hasOwnProperty(plainName)) {
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sourceText = exports.libraryFiles[plainName];
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sourcePath = exports.libraryPrefix + plainName + ".ts";
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} else if (exports.libraryFiles.hasOwnProperty(indexName)) {
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sourceText = exports.libraryFiles[indexName];
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sourcePath = exports.libraryPrefix + indexName + ".ts";
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} else {
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for (let i = 0, k = customLibDirs.length; i < k; ++i) {
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const dir = customLibDirs[i];
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sourceText = readFile(path.join(dir, plainName + ".ts"));
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if (sourceText !== null) {
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sourcePath = exports.libraryPrefix + plainName + ".ts";
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break;
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} else {
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sourceText = readFile(path.join(dir, indexName + ".ts"));
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if (sourceText !== null) {
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sourcePath = exports.libraryPrefix + indexName + ".ts";
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break;
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}
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}
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}
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}
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}
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}
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}
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if (sourceText == null) {
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return callback(Error("Import file '" + sourcePath + ".ts' not found."));
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}
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stats.parseCount++;
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stats.parseTime += measure(() => {
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assemblyscript.parseFile(sourceText, sourcePath, false, parser);
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});
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}
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if (checkDiagnostics(parser, stderr)) {
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return callback(Error("Parse error"));
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}
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}
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// Finish parsing
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const program = assemblyscript.finishParsing(parser);
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// Begin compilation
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const compilerOptions = assemblyscript.createOptions();
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assemblyscript.setTarget(compilerOptions, 0);
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assemblyscript.setNoTreeShaking(compilerOptions, !!args.noTreeShaking);
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assemblyscript.setNoAssert(compilerOptions, !!args.noAssert);
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assemblyscript.setNoMemory(compilerOptions, !!args.noMemory);
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assemblyscript.setImportMemory(compilerOptions, !!args.importMemory);
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assemblyscript.setImportTable(compilerOptions, !!args.importTable);
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assemblyscript.setMemoryBase(compilerOptions, args.memoryBase >>> 0);
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assemblyscript.setSourceMap(compilerOptions, args.sourceMap != null);
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// Initialize default aliases
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assemblyscript.setGlobalAlias(compilerOptions, "Math", "NativeMath");
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assemblyscript.setGlobalAlias(compilerOptions, "Mathf", "NativeMathf");
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// Add or override aliases if specified
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var aliases = args.use;
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if (aliases != null) {
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if (typeof aliases === "string") aliases = aliases.split(",");
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for (let i = 0, k = aliases.length; i < k; ++i) {
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let part = aliases[i];
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let p = part.indexOf("=");
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if (p < 0) return callback(Error("Global alias '" + part + "' is invalid."));
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let name = part.substring(0, p).trim();
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let alias = part.substring(p + 1).trim();
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if (!name.length || !alias.length) return callback(Error("Global alias '" + part + "' is invalid."));
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assemblyscript.setGlobalAlias(compilerOptions, name, alias);
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}
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}
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var module;
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stats.compileCount++;
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(() => {
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try {
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stats.compileTime += measure(() => {
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module = assemblyscript.compileProgram(program, compilerOptions);
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});
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} catch (e) {
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return callback(e);
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}
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})();
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if (checkDiagnostics(parser, stderr)) {
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if (module) module.dispose();
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return callback(Error("Compile error"));
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}
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// Validate the module if requested
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if (args.validate) {
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stats.validateCount++;
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stats.validateTime += measure(() => {
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if (!module.validate()) {
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module.dispose();
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return callback(Error("Validate error"));
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}
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});
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}
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// Set Binaryen-specific options
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if (args.trapMode === "clamp") {
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stats.optimizeCount++;
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stats.optimizeTime += measure(() => {
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module.runPasses([ "trap-mode-clamp" ]);
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});
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} else if (args.trapMode === "js") {
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stats.optimizeCount++;
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stats.optimizeTime += measure(() => {
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module.runPasses([ "trap-mode-js" ]);
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});
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} else if (args.trapMode !== "allow") {
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module.dispose();
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return callback(Error("Unsupported trap mode"));
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}
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var optimizeLevel = -1;
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var shrinkLevel = 0;
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var debugInfo = !args.noDebug;
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if (args.optimize !== false) {
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if (typeof args.optimize === "number") {
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optimizeLevel = args.optimize;
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} else if (args["0"]) {
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optimizeLevel = 0;
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} else if (args["1"]) {
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optimizeLevel = 1;
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} else if (args["2"]) {
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optimizeLevel = 2;
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} else if (args["3"]) {
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optimizeLevel = 3;
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} else if (args.optimize === true) {
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optimizeLevel = exports.defaultOptimizeLevel;
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shrinkLevel = exports.defaultShrinkLevel;
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} else
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optimizeLevel = 0;
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}
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if (args["s"]) {
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shrinkLevel = 1;
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} else if (args["z"]) {
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shrinkLevel = 2;
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}
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if (typeof args.optimizeLevel === "number") {
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optimizeLevel = args.optimizeLevel;
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}
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if (typeof args.shrinkLevel === "number") {
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shrinkLevel = args.shrinkLevel;
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} else if (args.shrinkLevel === "s") {
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shrinkLevel = 1;
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} else if (args.shrinkLevel === "z") {
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shrinkLevel = 2;
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}
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module.setOptimizeLevel(optimizeLevel > 0 ? optimizeLevel : 0);
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module.setShrinkLevel(shrinkLevel);
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module.setDebugInfo(debugInfo);
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var runPasses = [];
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if (args.runPasses) {
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if (typeof args.runPasses === "string") {
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args.runPasses = args.runPasses.split(",");
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}
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if (args.runPasses.length) {
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args.runPasses.forEach(pass => {
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if (runPasses.indexOf(pass) < 0)
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runPasses.push(pass);
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});
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}
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}
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// Optimize the module if requested
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if (optimizeLevel >= 0) {
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stats.optimizeCount++;
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stats.optimizeTime += measure(() => {
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module.optimize();
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});
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}
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// Run additional passes if requested
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if (runPasses.length) {
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stats.optimizeCount++;
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stats.optimizeTime += measure(() => {
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module.runPasses(runPasses.map(pass => pass.trim()));
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});
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}
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// Prepare output
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if (!args.noEmit) {
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let hasStdout = false;
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let hasOutput = false;
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if (args.outFile != null) {
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if (/\.was?t$/.test(args.outFile) && args.textFile == null) {
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args.textFile = args.outFile;
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} else if (/\.js$/.test(args.outFile) && args.asmjsFile == null) {
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|
args.asmjsFile = args.outFile;
|
|
} else if (args.binaryFile == null) {
|
|
args.binaryFile = args.outFile;
|
|
}
|
|
}
|
|
|
|
// Write binary
|
|
if (args.binaryFile != null) {
|
|
let sourceMapURL = args.sourceMap != null
|
|
? args.sourceMap.length
|
|
? args.sourceMap
|
|
: path.basename(args.binaryFile) + ".map"
|
|
: null;
|
|
|
|
let wasm;
|
|
stats.emitCount++;
|
|
stats.emitTime += measure(() => {
|
|
wasm = module.toBinary(sourceMapURL)
|
|
});
|
|
|
|
if (args.binaryFile.length) {
|
|
writeFile(path.join(baseDir, args.binaryFile), wasm.output);
|
|
} else {
|
|
writeStdout(wasm.output);
|
|
hasStdout = true;
|
|
}
|
|
hasOutput = true;
|
|
|
|
// Post-process source map
|
|
if (wasm.sourceMap != null) {
|
|
if (args.binaryFile.length) {
|
|
let sourceMap = JSON.parse(wasm.sourceMap);
|
|
sourceMap.sourceRoot = exports.sourceMapRoot;
|
|
sourceMap.sources.forEach((name, index) => {
|
|
let text = null;
|
|
if (name.startsWith(exports.libraryPrefix)) {
|
|
let stdName = name.substring(exports.libraryPrefix.length).replace(/\.ts$/, "");
|
|
if (exports.libraryFiles.hasOwnProperty(stdName)) {
|
|
text = exports.libraryFiles[stdName];
|
|
} else {
|
|
for (let i = 0, k = customLibDirs.length; i < k; ++i) {
|
|
text = readFile(path.join(
|
|
customLibDirs[i],
|
|
name.substring(exports.libraryPrefix.length))
|
|
);
|
|
if (text !== null) break;
|
|
}
|
|
}
|
|
} else {
|
|
text = readFile(path.join(baseDir, name));
|
|
}
|
|
if (text === null) {
|
|
return callback(Error("Source file '" + name + "' not found."));
|
|
}
|
|
if (!sourceMap.sourceContents) sourceMap.sourceContents = [];
|
|
sourceMap.sourceContents[index] = text;
|
|
});
|
|
writeFile(path.join(
|
|
baseDir,
|
|
path.dirname(args.binaryFile),
|
|
path.basename(sourceMapURL)
|
|
), JSON.stringify(sourceMap));
|
|
} else {
|
|
stderr.write("Skipped source map (stdout already occupied)" + EOL);
|
|
}
|
|
}
|
|
}
|
|
|
|
// Write asm.js
|
|
if (args.asmjsFile != null) {
|
|
let asm;
|
|
if (args.asmjsFile.length) {
|
|
stats.emitCount++;
|
|
stats.emitTime += measure(() => {
|
|
asm = module.toAsmjs();
|
|
});
|
|
writeFile(path.join(baseDir, args.asmjsFile), asm);
|
|
} else if (!hasStdout) {
|
|
stats.emitCount++;
|
|
stats.emitTime += measure(() => {
|
|
asm = module.toAsmjs();
|
|
});
|
|
writeStdout(asm);
|
|
hasStdout = true;
|
|
}
|
|
hasOutput = true;
|
|
}
|
|
|
|
// Write WebIDL
|
|
if (args.idlFile != null) {
|
|
let idl;
|
|
if (args.idlFile.length) {
|
|
stats.emitCount++;
|
|
stats.emitTime += measure(() => {
|
|
idl = assemblyscript.buildIDL(program);
|
|
});
|
|
writeFile(path.join(baseDir, args.idlFile), idl);
|
|
} else if (!hasStdout) {
|
|
stats.emitCount++;
|
|
stats.emitTime += measure(() => {
|
|
idl = assemblyscript.buildIDL(program);
|
|
});
|
|
writeStdout(idl);
|
|
hasStdout = true;
|
|
}
|
|
hasOutput = true;
|
|
}
|
|
|
|
// Write TypeScript definition
|
|
if (args.tsdFile != null) {
|
|
let tsd;
|
|
if (args.tsdFile.length) {
|
|
stats.emitCount++;
|
|
stats.emitTime += measure(() => {
|
|
tsd = assemblyscript.buildTSD(program);
|
|
});
|
|
writeFile(path.join(baseDir, args.tsdFile), tsd);
|
|
} else if (!hasStdout) {
|
|
stats.emitCount++;
|
|
stats.emitTime += measure(() => {
|
|
tsd = assemblyscript.buildTSD(program);
|
|
});
|
|
writeStdout(tsd);
|
|
hasStdout = true;
|
|
}
|
|
hasOutput = true;
|
|
}
|
|
|
|
// Write text (must be last)
|
|
if (args.textFile != null || !hasOutput) {
|
|
let wat;
|
|
if (args.textFile && args.textFile.length) {
|
|
stats.emitCount++;
|
|
stats.emitTime += measure(() => {
|
|
wat = module.toText();
|
|
});
|
|
writeFile(path.join(baseDir, args.textFile), wat);
|
|
} else if (!hasStdout) {
|
|
stats.emitCount++;
|
|
stats.emitTime += measure(() => {
|
|
wat = module.toText()
|
|
});
|
|
writeStdout(wat);
|
|
}
|
|
}
|
|
}
|
|
|
|
module.dispose();
|
|
if (args.measure) {
|
|
printStats(stats, stderr);
|
|
}
|
|
return callback(null);
|
|
|
|
function readFileNode(filename) {
|
|
try {
|
|
let text;
|
|
stats.readCount++;
|
|
stats.readTime += measure(() => {
|
|
text = fs.readFileSync(filename, { encoding: "utf8" });
|
|
});
|
|
return text;
|
|
} catch (e) {
|
|
return null;
|
|
}
|
|
}
|
|
|
|
function writeFileNode(filename, contents) {
|
|
try {
|
|
stats.writeCount++;
|
|
stats.writeTime += measure(() => {
|
|
if (typeof contents === "string") {
|
|
fs.writeFileSync(filename, contents, { encoding: "utf8" } );
|
|
} else {
|
|
fs.writeFileSync(filename, contents);
|
|
}
|
|
});
|
|
return true;
|
|
} catch (e) {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
function listFilesNode(dirname) {
|
|
var files;
|
|
try {
|
|
stats.readTime += measure(() => {
|
|
files = require("glob").sync("*.ts", { cwd: dirname });
|
|
});
|
|
return files;
|
|
} catch (e) {
|
|
return [];
|
|
}
|
|
}
|
|
|
|
function writeStdout(contents) {
|
|
if (!writeStdout.used) {
|
|
stats.writeCount++;
|
|
writeStdout.used = true;
|
|
}
|
|
stats.writeTime += measure(() => {
|
|
if (typeof contents === "string") {
|
|
stdout.write(contents, { encoding: "utf8" });
|
|
} else {
|
|
stdout.write(contents);
|
|
}
|
|
});
|
|
}
|
|
}
|
|
|
|
/** Parses the specified command line arguments. */
|
|
function parseArguments(argv) {
|
|
const opts = {};
|
|
Object.keys(exports.options).forEach(key => {
|
|
const opt = exports.options[key];
|
|
if (opt.aliases) {
|
|
(opts.alias || (opts.alias = {}))[key] = opt.aliases;
|
|
}
|
|
if (opt.default !== undefined) {
|
|
(opts.default || (opts.default = {}))[key] = opt.default;
|
|
}
|
|
if (opt.type === "string") {
|
|
(opts.string || (opts.string = [])).push(key);
|
|
} else if (opt.type === "boolean") {
|
|
(opts.boolean || (opts.boolean = [])).push(key);
|
|
}
|
|
});
|
|
return require("minimist")(argv, opts);
|
|
}
|
|
|
|
exports.parseArguments = parseArguments;
|
|
|
|
/** Checks diagnostics emitted so far for errors. */
|
|
function checkDiagnostics(emitter, stderr) {
|
|
var diagnostic;
|
|
var hasErrors = false;
|
|
while ((diagnostic = assemblyscript.nextDiagnostic(emitter)) != null) {
|
|
stderr.write(
|
|
assemblyscript.formatDiagnostic(diagnostic, stderr.isTTY, true) +
|
|
EOL + EOL
|
|
);
|
|
if (assemblyscript.isError(diagnostic)) hasErrors = true;
|
|
}
|
|
return hasErrors;
|
|
}
|
|
|
|
exports.checkDiagnostics = checkDiagnostics;
|
|
|
|
/** Creates an empty set of stats. */
|
|
function createStats() {
|
|
return {
|
|
readTime: 0,
|
|
readCount: 0,
|
|
writeTime: 0,
|
|
writeCount: 0,
|
|
parseTime: 0,
|
|
parseCount: 0,
|
|
compileTime: 0,
|
|
compileCount: 0,
|
|
emitTime: 0,
|
|
emitCount: 0,
|
|
validateTime: 0,
|
|
validateCount: 0,
|
|
optimizeTime: 0,
|
|
optimizeCount: 0
|
|
};
|
|
}
|
|
|
|
exports.createStats = createStats;
|
|
|
|
if (!process.hrtime) process.hrtime = require("browser-process-hrtime");
|
|
|
|
/** Measures the execution time of the specified function. */
|
|
function measure(fn) {
|
|
const start = process.hrtime();
|
|
fn();
|
|
const times = process.hrtime(start);
|
|
return times[0] * 1e9 + times[1];
|
|
}
|
|
|
|
exports.measure = measure;
|
|
|
|
function formatTime(time) {
|
|
return time ? (time / 1e6).toFixed(3) + " ms" : "N/A";
|
|
}
|
|
|
|
exports.formatTime = formatTime;
|
|
|
|
/** Formats and prints out the contents of a set of stats. */
|
|
function printStats(stats, output) {
|
|
function format(time, count) {
|
|
return formatTime(time);
|
|
}
|
|
(output || process.stdout).write([
|
|
"I/O Read : " + format(stats.readTime, stats.readCount),
|
|
"I/O Write : " + format(stats.writeTime, stats.writeCount),
|
|
"Parse : " + format(stats.parseTime, stats.parseCount),
|
|
"Compile : " + format(stats.compileTime, stats.compileCount),
|
|
"Emit : " + format(stats.emitTime, stats.emitCount),
|
|
"Validate : " + format(stats.validateTime, stats.validateCount),
|
|
"Optimize : " + format(stats.optimizeTime, stats.optimizeCount)
|
|
].join(EOL) + EOL);
|
|
}
|
|
|
|
exports.printStats = printStats;
|
|
|
|
var allocBuffer = typeof global !== "undefined" && global.Buffer
|
|
? global.Buffer.allocUnsafe || function(len) { return new global.Buffer(len); }
|
|
: function(len) { return new Uint8Array(len) };
|
|
|
|
/** Creates a memory stream that can be used in place of stdout/stderr. */
|
|
function createMemoryStream(fn) {
|
|
var stream = [];
|
|
stream.write = function(chunk) {
|
|
if (fn) fn(chunk);
|
|
if (typeof chunk === "string") {
|
|
let buffer = allocBuffer(utf8.length(chunk));
|
|
utf8.write(chunk, buffer, 0);
|
|
chunk = buffer;
|
|
}
|
|
this.push(chunk);
|
|
};
|
|
stream.toBuffer = function() {
|
|
var offset = 0, i = 0, k = this.length;
|
|
while (i < k) offset += this[i++].length;
|
|
var buffer = allocBuffer(offset);
|
|
offset = i = 0;
|
|
while (i < k) {
|
|
buffer.set(this[i], offset);
|
|
offset += this[i].length;
|
|
++i;
|
|
}
|
|
return buffer;
|
|
};
|
|
stream.toString = function() {
|
|
var buffer = this.toBuffer();
|
|
return utf8.read(buffer, 0, buffer.length);
|
|
};
|
|
return stream;
|
|
}
|
|
|
|
exports.createMemoryStream = createMemoryStream;
|
|
|
|
/** Compatible TypeScript compiler options. */
|
|
exports.tscOptions = {
|
|
alwaysStrict: true,
|
|
noImplicitAny: true,
|
|
noImplicitReturns: true,
|
|
noImplicitThis: true,
|
|
noEmitOnError: true,
|
|
strictNullChecks: true,
|
|
experimentalDecorators: true,
|
|
target: "esnext",
|
|
module: "commonjs",
|
|
noLib: true,
|
|
types: [],
|
|
allowJs: false
|
|
};
|