@crtxio/abi/lib/es/parsers/array.js

A tiny Solidity ABI encoder and decoder

import { pack, unpack } from '../packer';
import { concat, toBuffer, toNumber } from '../utils';
const ARRAY_REGEX = /^(.*)\[]$/;
export const getArrayType = type => {
  const match = type.match(ARRAY_REGEX);

  if (match) {
    return match[1];
  }

  throw new Error('Type is not an array type');
};
export const array = {
  isDynamic: true,

  isType(type) {
    return ARRAY_REGEX.test(type);
  },

  encode({
    type,
    buffer,
    value
  }) {
    const arrayType = getArrayType(type);
    const arrayLength = toBuffer(value.length);
    return pack(new Array(value.length).fill(arrayType), value, concat([buffer, arrayLength]));
  },

  decode({
    type,
    value
  }) {
    const arrayType = getArrayType(type);
    const arrayLength = Number(toNumber(value.subarray(0, 32)));
    return unpack(new Array(arrayLength).fill(arrayType), value.subarray(32));
  }

};
//# sourceMappingURL=array.js.map