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https://github.com/denoland/deno.git
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104 lines
3.1 KiB
TypeScript
104 lines
3.1 KiB
TypeScript
// Copyright 2018 the Deno authors. All rights reserved. MIT license.
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// We need to make sure this module loads, for its side effects.
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import "./globals";
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import * as flatbuffers from "./flatbuffers";
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import * as msg from "gen/msg_generated";
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import { assert, log, setLogDebug } from "./util";
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import * as os from "./os";
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import { Compiler } from "./compiler";
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import { Runner } from "./runner";
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import { libdeno } from "./libdeno";
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import { args } from "./deno";
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import { sendSync, handleAsyncMsgFromRust } from "./dispatch";
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import { promiseErrorExaminer, promiseRejectHandler } from "./promise_util";
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import { replLoop } from "./repl";
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import * as sourceMaps from "./v8_source_maps";
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import { version } from "typescript";
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// Install the source maps handler and do some pre-calculations so all of it is
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// available in the snapshot
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const compiler = Compiler.instance();
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sourceMaps.install({
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installPrepareStackTrace: true,
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getGeneratedContents: compiler.getGeneratedContents
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});
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const consumer = sourceMaps.loadConsumer("gen/bundle/main.js");
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assert(consumer != null);
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consumer!.computeColumnSpans();
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function sendStart(): msg.StartRes {
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const builder = flatbuffers.createBuilder();
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msg.Start.startStart(builder);
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const startOffset = msg.Start.endStart(builder);
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const baseRes = sendSync(builder, msg.Any.Start, startOffset);
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assert(baseRes != null);
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assert(msg.Any.StartRes === baseRes!.innerType());
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const startRes = new msg.StartRes();
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assert(baseRes!.inner(startRes) != null);
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return startRes;
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}
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function onGlobalError(
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message: string,
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source: string,
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lineno: number,
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colno: number,
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error: any // tslint:disable-line:no-any
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) {
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if (error instanceof Error) {
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console.log(error.stack);
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} else {
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console.log(`Thrown: ${String(error)}`);
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}
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os.exit(1);
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}
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/* tslint:disable-next-line:no-default-export */
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export default function denoMain() {
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libdeno.recv(handleAsyncMsgFromRust);
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libdeno.setGlobalErrorHandler(onGlobalError);
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libdeno.setPromiseRejectHandler(promiseRejectHandler);
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libdeno.setPromiseErrorExaminer(promiseErrorExaminer);
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// First we send an empty "Start" message to let the privileged side know we
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// are ready. The response should be a "StartRes" message containing the CLI
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// args and other info.
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const startResMsg = sendStart();
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setLogDebug(startResMsg.debugFlag());
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// handle `--types`
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if (startResMsg.typesFlag()) {
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const defaultLibFileName = compiler.getDefaultLibFileName();
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console.log(compiler.getSource(defaultLibFileName));
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os.exit(0);
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}
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// handle `--version`
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if (startResMsg.versionFlag()) {
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console.log("deno:", startResMsg.denoVersion());
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console.log("v8:", startResMsg.v8Version());
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console.log("typescript:", version);
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os.exit(0);
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}
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const cwd = startResMsg.cwd();
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log("cwd", cwd);
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for (let i = 1; i < startResMsg.argvLength(); i++) {
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args.push(startResMsg.argv(i));
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}
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log("args", args);
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Object.freeze(args);
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const inputFn = args[0];
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compiler.recompile = startResMsg.recompileFlag();
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const runner = new Runner(compiler);
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if (inputFn) {
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runner.run(inputFn, `${cwd}/`);
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} else {
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replLoop();
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}
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}
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