dts-jest/lib/utils/load-compiler-options.js

A preprocessor for Jest to snapshot test TypeScript declaration (.d.ts) files

"use strict";
exports.__esModule = true;
var path = require("path");
var create_message_1 = require("./create-message");
var get_diagnostic_message_1 = require("./get-diagnostic-message");
exports.load_compiler_options = function (raw_options, ts) {
    return typeof raw_options === 'string'
        ? load_from_tsconfig(raw_options, ts)
        : load_from_raw_options(raw_options, ts);
};
function load_from_raw_options(raw_options, ts) {
    var _a = ts.convertCompilerOptionsFromJson(raw_options, process.cwd()), errors = _a.errors, options = _a.options;
    if (errors.length !== 0) {
        throw new Error(create_message_1.create_message('Unexpected error(s) while loading compiler options:', errors.map(get_diagnostic_message_1.get_diagnostic_message)));
    }
    return { options: options, file_names: [] };
}
function load_from_tsconfig(filename, ts) {
    var _a = ts.readConfigFile(filename, ts.sys.readFile), tsconfig = _a.config, error = _a.error;
    // istanbul ignore next
    if (error !== undefined) {
        throw new Error(create_message_1.create_message("Unexpected error(s) while reading tsconfig (" + filename + "):", [get_diagnostic_message_1.get_diagnostic_message(error)]));
    }
    var dirname = path.dirname(filename);
    var _b = ts.parseJsonConfigFileContent(tsconfig, ts.sys, dirname), errors = _b.errors, options = _b.options, file_names = _b.fileNames;
    if (errors.length !== 0) {
        throw new Error(create_message_1.create_message("Unexpected error(s) while parsing tsconfig (" + filename + "):", errors.map(get_diagnostic_message_1.get_diagnostic_message)));
    }
    return { options: options, file_names: file_names };
}