@typescript-eslint/typescript-estree/dist/create-program/createIsolatedProgram.js

A parser that converts TypeScript source code into an ESTree compatible form

"use strict";
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}) : (function(o, m, k, k2) {
    if (k2 === undefined) k2 = k;
    o[k2] = m[k];
}));
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    Object.defineProperty(o, "default", { enumerable: true, value: v });
}) : function(o, v) {
    o["default"] = v;
});
var __importStar = (this && this.__importStar) || (function () {
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var __importDefault = (this && this.__importDefault) || function (mod) {
    return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.createIsolatedProgram = createIsolatedProgram;
const debug_1 = __importDefault(require("debug"));
const ts = __importStar(require("typescript"));
const getScriptKind_1 = require("./getScriptKind");
const shared_1 = require("./shared");
const log = (0, debug_1.default)('typescript-eslint:typescript-estree:create-program:createIsolatedProgram');
/**
 * @returns Returns a new source file and program corresponding to the linted code
 */
function createIsolatedProgram(parseSettings) {
    log('Getting isolated program in %s mode for: %s', parseSettings.jsx ? 'TSX' : 'TS', parseSettings.filePath);
    const compilerHost = {
        fileExists() {
            return true;
        },
        getCanonicalFileName() {
            return parseSettings.filePath;
        },
        getCurrentDirectory() {
            return '';
        },
        getDefaultLibFileName() {
            return 'lib.d.ts';
        },
        getDirectories() {
            return [];
        },
        // TODO: Support Windows CRLF
        getNewLine() {
            return '\n';
        },
        getSourceFile(filename) {
            return ts.createSourceFile(filename, parseSettings.codeFullText, ts.ScriptTarget.Latest, 
            /* setParentNodes */ true, (0, getScriptKind_1.getScriptKind)(parseSettings.filePath, parseSettings.jsx));
        },
        readFile() {
            return undefined;
        },
        useCaseSensitiveFileNames() {
            return true;
        },
        writeFile() {
            return null;
        },
    };
    const program = ts.createProgram([parseSettings.filePath], {
        jsDocParsingMode: parseSettings.jsDocParsingMode,
        jsx: parseSettings.jsx ? ts.JsxEmit.Preserve : undefined,
        noResolve: true,
        target: ts.ScriptTarget.Latest,
        ...(0, shared_1.createDefaultCompilerOptionsFromExtra)(parseSettings),
    }, compilerHost);
    const ast = program.getSourceFile(parseSettings.filePath);
    if (!ast) {
        throw new Error('Expected an ast to be returned for the single-file isolated program.');
    }
    return { ast, program };
}