packages/babel-plugin-transform-literals/src/index.js
import { declare } from "@babel/helper-plugin-utils";
export default declare(api => {
api.assertVersion(7);
return {
name: "transform-literals",
visitor: {
NumericLiteral({ node }) {
// number octal like 0b10 or 0o70
if (node.extra && /^0[ob]/i.test(node.extra.raw)) {
node.extra = undefined;
}
},
StringLiteral({ node }) {
// unicode escape
if (node.extra && /\\[u]/gi.test(node.extra.raw)) {
node.extra = undefined;
}
},
},
};
});