babel/src/options.js
2015-08-11 00:59:15 +01:00

28 lines
815 B
JavaScript
Executable File

// A second optional argument can be given to further configure
// the parser process. These options are recognized:
export const defaultOptions = {
// Source type ("script" or "module") for different semantics
sourceType: "script",
// When enabled, a return at the top level is not considered an
// error.
allowReturnOutsideFunction: false,
// When enabled, import/export statements are not constrained to
// appearing at the top of the program.
allowImportExportEverywhere: false,
plugins: {},
// Babel-specific options
features: {},
strictMode: null
};
// Interpret and default an options object
export function getOptions(opts) {
let options = {};
for (let key in defaultOptions) {
options[key] = opts && key in opts ? opts[key] : defaultOptions[key];
}
return options;
}