sucrase
Version:
Super-fast alternative to Babel for when you can target modern JS runtimes
20 lines (15 loc) • 511 B
JavaScript
import {TokenType as tt} from "../parser/tokenizer/types";
import Transformer from "./Transformer";
export default class OptionalCatchBindingTransformer extends Transformer {
constructor( tokens, nameManager) {
super();this.tokens = tokens;this.nameManager = nameManager;;
}
process() {
if (this.tokens.matches2(tt._catch, tt.braceL)) {
this.tokens.copyToken();
this.tokens.appendCode(` (${this.nameManager.claimFreeName("e")})`);
return true;
}
return false;
}
}