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// Copyright 2018-2022 the Deno authors. All rights reserved. MIT license.
import { path, ts } from "./mod.deps.ts";import { ScriptTarget } from "./types.ts";
export function outputDiagnostics(diagnostics: readonly ts.Diagnostic[]) {  console.error(ts.formatDiagnosticsWithColorAndContext(diagnostics, {    getCanonicalFileName: (fileName) => path.resolve(fileName),    getCurrentDirectory: () => Deno.cwd(),    getNewLine: () => "\n",  }));}
export function getCompilerScriptTarget(target: ScriptTarget) {  switch (target) {    case "ES3":      return ts.ScriptTarget.ES3;    case "ES5":      return ts.ScriptTarget.ES5;    case "ES2015":      return ts.ScriptTarget.ES2015;    case "ES2016":      return ts.ScriptTarget.ES2016;    case "ES2017":      return ts.ScriptTarget.ES2017;    case "ES2018":      return ts.ScriptTarget.ES2018;    case "ES2019":      return ts.ScriptTarget.ES2019;    case "ES2020":      return ts.ScriptTarget.ES2020;    case "ES2021":      return ts.ScriptTarget.ES2021;    case "Latest":      return ts.ScriptTarget.Latest;    default:      throw new Error(`Unknown target compiler option: ${target}`);  }}
// Created from https://github.com/microsoft/TypeScript/blob/0ad5f82d6243db80d42bc0abb7a191dd380e980e/src/compiler/commandLineParser.tsexport type LibName =  | "es5"  | "es6"  | "es2015"  | "es7"  | "es2016"  | "es2017"  | "es2018"  | "es2019"  | "es2020"  | "es2021"  | "es2022"  | "esnext"  | "dom"  | "dom.iterable"  | "webworker"  | "webworker.importscripts"  | "webworker.iterable"  | "scripthost"  | "es2015.core"  | "es2015.collection"  | "es2015.generator"  | "es2015.iterable"  | "es2015.promise"  | "es2015.proxy"  | "es2015.reflect"  | "es2015.symbol"  | "es2015.symbol.wellknown"  | "es2016.array.include"  | "es2017.object"  | "es2017.sharedmemory"  | "es2017.string"  | "es2017.intl"  | "es2017.typedarrays"  | "es2018.asyncgenerator"  | "es2018.asynciterable"  | "es2018.intl"  | "es2018.promise"  | "es2018.regexp"  | "es2019.array"  | "es2019.object"  | "es2019.string"  | "es2019.symbol"  | "es2020.bigint"  | "es2020.date"  | "es2020.promise"  | "es2020.sharedmemory"  | "es2020.string"  | "es2020.symbol.wellknown"  | "es2020.intl"  | "es2020.number"  | "es2021.promise"  | "es2021.string"  | "es2021.weakref"  | "es2021.intl"  | "es2022.array"  | "es2022.error"  | "es2022.intl"  | "es2022.object"  | "es2022.string"  | "esnext.array"  | "esnext.symbol"  | "esnext.asynciterable"  | "esnext.intl"  | "esnext.bigint"  | "esnext.string"  | "esnext.promise"  | "esnext.weakref";
export function getCompilerLibOption(target: ScriptTarget): LibName[] {  switch (target) {    case "ES3":      return [];    case "ES5":      return ["es5"];    case "ES2015":      return ["es2015"];    case "ES2016":      return ["es2016"];    case "ES2017":      return ["es2017"];    case "ES2018":      return ["es2018"];    case "ES2019":      return ["es2019"];    case "ES2020":      return ["es2020"];    case "ES2021":      return ["es2021"];    case "Latest":      return ["esnext"];    default: {      const _assertNever: never = target;      throw new Error(`Unknown target compiler option: ${target}`);    }  }}
export function libNamesToCompilerOption(names: LibName[]) {  const libFileNames: string[] = [];  const libMap = (ts as any).libMap as Map<string, string>;  for (const name of names) {    const fileName = libMap.get(name);    if (fileName == null) {      throw new Error(`Could not find filename for lib: ${name}`);    } else {      libFileNames.push(fileName);    }  }  return libFileNames;}
export type SourceMapOptions = "inline" | boolean;
export function getCompilerSourceMapOptions(  sourceMaps: SourceMapOptions | undefined,): { inlineSourceMap?: boolean; sourceMap?: boolean } {  switch (sourceMaps) {    case "inline":      return { inlineSourceMap: true };    case true:      return { sourceMap: true };    default:      return {};  }}
export function getTopLevelAwaitLocation(sourceFile: ts.SourceFile) {  const topLevelAwait = getTopLevelAwait(sourceFile);  if (topLevelAwait !== undefined) {    return sourceFile.getLineAndCharacterOfPosition(      topLevelAwait.getStart(sourceFile),    );  }  return undefined;}
function getTopLevelAwait(node: ts.Node): ts.Node | undefined {  if (ts.isAwaitExpression(node)) {    return node;  }  if (ts.isForOfStatement(node) && node.awaitModifier !== undefined) {    return node;  }  return ts.forEachChild(node, (child) => {    if (      !ts.isFunctionDeclaration(child) && !ts.isFunctionExpression(child) &&      !ts.isArrowFunction(child) && !ts.isMethodDeclaration(child)    ) {      return getTopLevelAwait(child);    }  });}
export function transformCodeToTarget(code: string, target: ts.ScriptTarget) {  return ts.transpile(code, {    target,  });}