GT2/Ejectable/node_modules/@expo/config/build/evalConfig.js

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2021-08-16 00:14:59 +00:00
"use strict";
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.evalConfig = evalConfig;
exports.resolveConfigExport = resolveConfigExport;
function _fs() {
const data = require("fs");
_fs = function () {
return data;
};
return data;
}
function _requireFromString() {
const data = _interopRequireDefault(require("require-from-string"));
_requireFromString = function () {
return data;
};
return data;
}
function _sucrase() {
const data = require("sucrase");
_sucrase = function () {
return data;
};
return data;
}
function _Errors() {
const data = require("./Errors");
_Errors = function () {
return data;
};
return data;
}
function _Serialize() {
const data = require("./Serialize");
_Serialize = function () {
return data;
};
return data;
}
function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
/**
* Transpile and evaluate the dynamic config object.
* This method is shared between the standard reading method in getConfig, and the headless script.
*
* @param options configFile path to the dynamic app.config.*, request to send to the dynamic config if it exports a function.
* @returns the serialized and evaluated config along with the exported object type (object or function).
*/
function evalConfig(configFile, request) {
const contents = (0, _fs().readFileSync)(configFile, 'utf8');
let result;
try {
const {
code
} = (0, _sucrase().transform)(contents, {
filePath: configFile,
transforms: ['typescript', 'imports']
});
result = (0, _requireFromString().default)(code, configFile);
} catch (error) {
const location = extractLocationFromSyntaxError(error); // Apply a code frame preview to the error if possible, sucrase doesn't do this by default.
if (location) {
const {
codeFrameColumns
} = require('@babel/code-frame');
const codeFrame = codeFrameColumns(contents, {
start: error.loc
}, {
highlightCode: true
});
error.codeFrame = codeFrame;
error.message += `\n${codeFrame}`;
} else {
const importantStack = extractImportantStackFromNodeError(error);
if (importantStack) {
error.message += `\n${importantStack}`;
}
}
throw error;
}
return resolveConfigExport(result, configFile, request);
}
function extractLocationFromSyntaxError(error) {
// sucrase provides the `loc` object
if (error.loc) {
return error.loc;
} // `SyntaxError`s provide the `lineNumber` and `columnNumber` properties
if ('lineNumber' in error && 'columnNumber' in error) {
return {
line: error.lineNumber,
column: error.columnNumber
};
}
return null;
} // These kinda errors often come from syntax errors in files that were imported by the main file.
// An example is a module that includes an import statement.
function extractImportantStackFromNodeError(error) {
if (isSyntaxError(error)) {
var _error$stack;
const traces = (_error$stack = error.stack) === null || _error$stack === void 0 ? void 0 : _error$stack.split('\n').filter(line => !line.startsWith(' at '));
if (!traces) return null; // Remove redundant line
if (traces[traces.length - 1].startsWith('SyntaxError:')) {
traces.pop();
}
return traces.join('\n');
}
return null;
}
function isSyntaxError(error) {
return error instanceof SyntaxError || error.constructor.name === 'SyntaxError';
}
/**
* - Resolve the exported contents of an Expo config (be it default or module.exports)
* - Assert no promise exports
* - Return config type
* - Serialize config
*
* @param result
* @param configFile
* @param request
*/
function resolveConfigExport(result, configFile, request) {
var _result;
if (result.default != null) {
result = result.default;
}
const exportedObjectType = typeof result;
if (typeof result === 'function') {
result = result(request);
}
if (result instanceof Promise) {
throw new (_Errors().ConfigError)(`Config file ${configFile} cannot return a Promise.`, 'INVALID_CONFIG');
} // If the expo object exists, ignore all other values.
if ((_result = result) !== null && _result !== void 0 && _result.expo) {
result = (0, _Serialize().serializeSkippingMods)(result.expo);
} else {
result = (0, _Serialize().serializeSkippingMods)(result);
}
return {
config: result,
exportedObjectType
};
}
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