import * as types from '../../types';
import { Constant } from './base';

class ArrayVal extends Constant {
  constructor(ty: types.Array, public readonly elems: ReadonlyArray<Constant>) {
    super(ty);
  }

  public isEqual(to: Constant): boolean {
    if (this === to) {
      return true;
    }

    if (!to.isArray() || !to.ty.isEqual(this.ty)) {
      return false;
    }

    const toArray = to as ArrayVal;
    return toArray.elems.length === this.elems.length &&
      toArray.elems.every((elem, i) => elem.isEqual(this.elems[i]));
  }

  public toString(): string {
    const elems = this.elems.map((elem) => elem.toString());
    return `[const.array elems={${elems.join(', ')}}]`;
  }
}

export { ArrayVal as Array };