oxc-parser/wrap.cjs

Oxc Parser Node API

module.exports.wrap = function wrap(result) {
  let program, module, comments, errors;
  return {
    get program() {
      if (!program) {
        // Note: This code is repeated in `crates/oxc-wasm/update-bindings.mjs` and `napi/parser/wrap.cjs`.
        // Any changes should be applied in those 2 scripts too.
        program = JSON.parse(result.program, function(key, value) {
          // Set `value` field of `Literal`s for `BigInt`s and `RegExp`s.
          // This is not possible to do on Rust side, as neither can be represented correctly in JSON.
          if (value === null && key === 'value' && Object.hasOwn(this, 'type') && this.type === 'Literal') {
            if (Object.hasOwn(this, 'bigint')) {
              return BigInt(this.bigint);
            }
            if (Object.hasOwn(this, 'regex')) {
              const { regex } = this;
              try {
                return RegExp(regex.pattern, regex.flags);
              } catch (_err) {
                // Invalid regexp, or valid regexp using syntax not supported by this version of NodeJS
              }
            }
          }
          return value;
        });
      }
      return program;
    },
    get module() {
      if (!module) module = result.module;
      return module;
    },
    get comments() {
      if (!comments) comments = result.comments;
      return comments;
    },
    get errors() {
      if (!errors) errors = result.errors;
      return errors;
    },
  };
};