brs/lib/LexerParser.js

"use strict";
var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
    function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
    return new (P || (P = Promise))(function (resolve, reject) {
        function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
        function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
        function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
        step((generator = generator.apply(thisArg, _arguments || [])).next());
    });
};
var __importStar = (this && this.__importStar) || function (mod) {
    if (mod && mod.__esModule) return mod;
    var result = {};
    if (mod != null) for (var k in mod) if (Object.hasOwnProperty.call(mod, k)) result[k] = mod[k];
    result["default"] = mod;
    return result;
};
var __importDefault = (this && this.__importDefault) || function (mod) {
    return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
const fs = __importStar(require("fs"));
const util_1 = require("util");
const p_settle_1 = __importDefault(require("p-settle"));
const readFile = util_1.promisify(fs.readFile);
const lexer_1 = require("./lexer");
const parser_1 = require("./parser");
const PP = __importStar(require("./preprocessor"));
exports.preprocessor = PP;
const BrsTypes = __importStar(require("./brsTypes"));
exports.types = BrsTypes;
const BrsError = __importStar(require("./Error"));
const interpreter_1 = require("./interpreter");
function getLexerParserFn(manifest, options) {
    const executionOptions = Object.assign(interpreter_1.defaultExecutionOptions, options);
    return function parse(filenames) {
        return __awaiter(this, void 0, void 0, function* () {
            let parsedFiles = yield p_settle_1.default(filenames.map((filename) => __awaiter(this, void 0, void 0, function* () {
                let contents;
                try {
                    contents = yield readFile(filename, "utf-8");
                }
                catch (err) {
                    return Promise.reject({
                        message: `brs: can't open file '${filename}': [Errno ${err.errno}]`,
                    });
                }
                let lexer = new lexer_1.Lexer();
                let preprocessor = new PP.Preprocessor();
                let parser = new parser_1.Parser();
                [lexer, preprocessor, parser].forEach(emitter => emitter.onError(BrsError.getLoggerUsing(executionOptions.stderr)));
                let scanResults = lexer.scan(contents, filename);
                if (scanResults.errors.length > 0) {
                    return Promise.reject({
                        message: "Error occurred during lexing",
                    });
                }
                let preprocessResults = preprocessor.preprocess(scanResults.tokens, manifest);
                if (preprocessResults.errors.length > 0) {
                    return Promise.reject({
                        message: "Error occurred during pre-processing",
                    });
                }
                let parseResults = parser.parse(preprocessResults.processedTokens);
                if (parseResults.errors.length > 0) {
                    return Promise.reject({
                        message: "Error occurred parsing",
                    });
                }
                return Promise.resolve(parseResults.statements);
            })));
            // don't execute anything if there were reading, lexing, or parsing errors
            if (parsedFiles.some(file => file.isRejected)) {
                return Promise.reject({
                    messages: parsedFiles
                        .filter(file => file.isRejected)
                        .map(rejection => rejection.reason.message),
                });
            }
            // combine statements from all files into one array
            return parsedFiles
                .map(file => file.value || [])
                .reduce((allStatements, fileStatements) => [...allStatements, ...fileStatements], []);
        });
    };
}
exports.getLexerParserFn = getLexerParserFn;
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