/**
React Native Decompiler
Copyright (C) 2020-2022 Richard Fu, Numan and contributors
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
import { Visitor } from '@babel/traverse';
import { identifier, isNumericLiteral } from '@babel/types';
import { Plugin } from '../../plugin';
/**
* Converts `void 0` to `undefined`
*/
export default class VoidZeroToUndefined extends Plugin {
readonly pass = 1;
getVisitor(): Visitor {
return {
UnaryExpression(path) {
if (path.node.operator !== 'void' || !isNumericLiteral(path.node.argument) || path.node.argument.value !== 0) return;
path.replaceWith(identifier('undefined'));
},
};
}
}
