@tanstack/vue-table/build/lib/merge-proxy.js

Headless UI for building powerful tables & datagrids for Vue.

/**
   * vue-table
   *
   * Copyright (c) TanStack
   *
   * This source code is licensed under the MIT license found in the
   * LICENSE.md file in the root directory of this source tree.
   *
   * @license MIT
   */
'use strict';

function trueFn() {
  return true;
}
const $PROXY = Symbol('merge-proxy');

// https://github.com/solidjs/solid/blob/c20ca4fd8c36bc0522fedb2c7f38a110b7ee2663/packages/solid/src/render/component.ts#L51-L118
const propTraps = {
  get(_, property, receiver) {
    if (property === $PROXY) return receiver;
    return _.get(property);
  },
  has(_, property) {
    return _.has(property);
  },
  set: trueFn,
  deleteProperty: trueFn,
  getOwnPropertyDescriptor(_, property) {
    return {
      configurable: true,
      enumerable: true,
      get() {
        return _.get(property);
      },
      set: trueFn,
      deleteProperty: trueFn
    };
  },
  ownKeys(_) {
    return _.keys();
  }
};
function resolveSource(s) {
  return 'value' in s ? s.value : s;
}
function mergeProxy() {
  for (var _len = arguments.length, sources = new Array(_len), _key = 0; _key < _len; _key++) {
    sources[_key] = arguments[_key];
  }
  return new Proxy({
    get(property) {
      for (let i = sources.length - 1; i >= 0; i--) {
        const v = resolveSource(sources[i])[property];
        if (v !== undefined) return v;
      }
    },
    has(property) {
      for (let i = sources.length - 1; i >= 0; i--) {
        if (property in resolveSource(sources[i])) return true;
      }
      return false;
    },
    keys() {
      const keys = [];
      for (let i = 0; i < sources.length; i++) keys.push(...Object.keys(resolveSource(sources[i])));
      return [...Array.from(new Set(keys))];
    }
  }, propTraps);
}

exports.mergeProxy = mergeProxy;
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