mirror of
https://github.com/denoland/deno.git
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313 lines
7.8 KiB
TypeScript
313 lines
7.8 KiB
TypeScript
// Copyright 2018-2020 the Deno authors. All rights reserved. MIT license.
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import { ASSETS, MediaType, SourceFile } from "./sourcefile.ts";
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import { OUT_DIR, WriteFileCallback, getAsset } from "./util.ts";
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import { cwd } from "../ops/fs/dir.ts";
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import { assert, notImplemented } from "../util.ts";
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import * as util from "../util.ts";
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export enum CompilerHostTarget {
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Main = "main",
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Runtime = "runtime",
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Worker = "worker",
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}
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export interface CompilerHostOptions {
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bundle?: boolean;
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target: CompilerHostTarget;
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writeFile: WriteFileCallback;
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}
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export interface ConfigureResponse {
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ignoredOptions?: string[];
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diagnostics?: ts.Diagnostic[];
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}
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export const defaultBundlerOptions: ts.CompilerOptions = {
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allowJs: true,
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inlineSourceMap: false,
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module: ts.ModuleKind.System,
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outDir: undefined,
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outFile: `${OUT_DIR}/bundle.js`,
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// disabled until we have effective way to modify source maps
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sourceMap: false,
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};
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export const defaultCompileOptions: ts.CompilerOptions = {
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allowJs: false,
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allowNonTsExtensions: true,
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checkJs: false,
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esModuleInterop: true,
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jsx: ts.JsxEmit.React,
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module: ts.ModuleKind.ESNext,
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outDir: OUT_DIR,
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resolveJsonModule: true,
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sourceMap: true,
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strict: true,
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stripComments: true,
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target: ts.ScriptTarget.ESNext,
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};
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export const defaultRuntimeCompileOptions: ts.CompilerOptions = {
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outDir: undefined,
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};
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export const defaultTranspileOptions: ts.CompilerOptions = {
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esModuleInterop: true,
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module: ts.ModuleKind.ESNext,
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sourceMap: true,
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scriptComments: true,
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target: ts.ScriptTarget.ESNext,
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};
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const ignoredCompilerOptions: readonly string[] = [
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"allowSyntheticDefaultImports",
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"baseUrl",
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"build",
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"composite",
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"declaration",
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"declarationDir",
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"declarationMap",
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"diagnostics",
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"downlevelIteration",
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"emitBOM",
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"emitDeclarationOnly",
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"esModuleInterop",
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"extendedDiagnostics",
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"forceConsistentCasingInFileNames",
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"help",
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"importHelpers",
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"incremental",
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"inlineSourceMap",
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"inlineSources",
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"init",
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"isolatedModules",
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"listEmittedFiles",
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"listFiles",
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"mapRoot",
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"maxNodeModuleJsDepth",
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"module",
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"moduleResolution",
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"newLine",
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"noEmit",
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"noEmitHelpers",
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"noEmitOnError",
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"noLib",
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"noResolve",
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"out",
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"outDir",
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"outFile",
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"paths",
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"preserveSymlinks",
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"preserveWatchOutput",
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"pretty",
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"rootDir",
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"rootDirs",
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"showConfig",
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"skipDefaultLibCheck",
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"skipLibCheck",
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"sourceMap",
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"sourceRoot",
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"stripInternal",
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"target",
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"traceResolution",
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"tsBuildInfoFile",
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"types",
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"typeRoots",
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"version",
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"watch",
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];
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function getAssetInternal(filename: string): SourceFile {
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const lastSegment = filename.split("/").pop()!;
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const url = ts.libMap.has(lastSegment)
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? ts.libMap.get(lastSegment)!
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: lastSegment;
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const sourceFile = SourceFile.get(url);
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if (sourceFile) {
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return sourceFile;
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}
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const name = url.includes(".") ? url : `${url}.d.ts`;
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const sourceCode = getAsset(name);
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return new SourceFile({
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url,
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filename: `${ASSETS}/${name}`,
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mediaType: MediaType.TypeScript,
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sourceCode,
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});
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}
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export class Host implements ts.CompilerHost {
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readonly #options = defaultCompileOptions;
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#target: CompilerHostTarget;
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#writeFile: WriteFileCallback;
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/* Deno specific APIs */
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constructor({ bundle = false, target, writeFile }: CompilerHostOptions) {
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this.#target = target;
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this.#writeFile = writeFile;
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if (bundle) {
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// options we need to change when we are generating a bundle
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Object.assign(this.#options, defaultBundlerOptions);
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}
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}
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configure(path: string, configurationText: string): ConfigureResponse {
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util.log("compiler::host.configure", path);
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assert(configurationText);
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const { config, error } = ts.parseConfigFileTextToJson(
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path,
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configurationText
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);
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if (error) {
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return { diagnostics: [error] };
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}
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const { options, errors } = ts.convertCompilerOptionsFromJson(
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config.compilerOptions,
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cwd()
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);
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const ignoredOptions: string[] = [];
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for (const key of Object.keys(options)) {
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if (
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ignoredCompilerOptions.includes(key) &&
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(!(key in this.#options) || options[key] !== this.#options[key])
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) {
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ignoredOptions.push(key);
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delete options[key];
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}
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}
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Object.assign(this.#options, options);
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return {
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ignoredOptions: ignoredOptions.length ? ignoredOptions : undefined,
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diagnostics: errors.length ? errors : undefined,
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};
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}
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mergeOptions(...options: ts.CompilerOptions[]): ts.CompilerOptions {
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Object.assign(this.#options, ...options);
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return Object.assign({}, this.#options);
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}
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/* TypeScript CompilerHost APIs */
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fileExists(_fileName: string): boolean {
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return notImplemented();
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}
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getCanonicalFileName(fileName: string): string {
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return fileName;
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}
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getCompilationSettings(): ts.CompilerOptions {
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util.log("compiler::host.getCompilationSettings()");
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return this.#options;
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}
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getCurrentDirectory(): string {
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return "";
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}
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getDefaultLibFileName(_options: ts.CompilerOptions): string {
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util.log("compiler::host.getDefaultLibFileName()");
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switch (this.#target) {
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case CompilerHostTarget.Main:
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case CompilerHostTarget.Runtime:
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return `${ASSETS}/lib.deno.window.d.ts`;
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case CompilerHostTarget.Worker:
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return `${ASSETS}/lib.deno.worker.d.ts`;
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}
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}
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getNewLine(): string {
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return "\n";
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}
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getSourceFile(
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fileName: string,
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languageVersion: ts.ScriptTarget,
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onError?: (message: string) => void,
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shouldCreateNewSourceFile?: boolean
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): ts.SourceFile | undefined {
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util.log("compiler::host.getSourceFile", fileName);
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try {
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assert(!shouldCreateNewSourceFile);
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const sourceFile = fileName.startsWith(ASSETS)
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? getAssetInternal(fileName)
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: SourceFile.get(fileName);
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assert(sourceFile != null);
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if (!sourceFile.tsSourceFile) {
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assert(sourceFile.sourceCode != null);
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// even though we assert the extension for JSON modules to the compiler
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// is TypeScript, TypeScript internally analyses the filename for its
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// extension and tries to parse it as JSON instead of TS. We have to
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// change the filename to the TypeScript file.
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sourceFile.tsSourceFile = ts.createSourceFile(
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fileName.startsWith(ASSETS)
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? sourceFile.filename
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: fileName.toLowerCase().endsWith(".json")
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? `${fileName}.ts`
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: fileName,
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sourceFile.sourceCode,
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languageVersion
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);
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delete sourceFile.sourceCode;
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}
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return sourceFile.tsSourceFile;
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} catch (e) {
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if (onError) {
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onError(String(e));
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} else {
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throw e;
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}
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return undefined;
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}
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}
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readFile(_fileName: string): string | undefined {
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return notImplemented();
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}
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resolveModuleNames(
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moduleNames: string[],
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containingFile: string
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): Array<ts.ResolvedModuleFull | undefined> {
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util.log("compiler::host.resolveModuleNames", {
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moduleNames,
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containingFile,
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});
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return moduleNames.map((specifier) => {
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const url = SourceFile.getUrl(specifier, containingFile);
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const sourceFile = specifier.startsWith(ASSETS)
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? getAssetInternal(specifier)
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: url
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? SourceFile.get(url)
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: undefined;
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if (!sourceFile) {
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return undefined;
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}
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return {
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resolvedFileName: sourceFile.url,
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isExternalLibraryImport: specifier.startsWith(ASSETS),
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extension: sourceFile.extension,
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};
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});
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}
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useCaseSensitiveFileNames(): boolean {
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return true;
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}
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writeFile(
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fileName: string,
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data: string,
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_writeByteOrderMark: boolean,
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_onError?: (message: string) => void,
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sourceFiles?: readonly ts.SourceFile[]
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): void {
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util.log("compiler::host.writeFile", fileName);
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this.#writeFile(fileName, data, sourceFiles);
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}
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}
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