@jplorg/jpl/lib/program/ops/opAccess/opaSlice.js

JPL interpreter

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.default = void 0;
var _library = require("../../../library");
var _utils = require("../utils");
var _default = exports.default = {
  /** { from: [op], to: [op], optional: boolean } */
  async op(runtime, input, target, params, scope, next) {
    const value = runtime.unwrapValue(target);
    const tv = runtime.type(value);
    const [froms, tos] = await Promise.all([runtime.executeInstructions(params.from ?? [], [input], scope), runtime.executeInstructions(params.to ?? [], [input], scope)]);
    return runtime.muxAll([runtime.unwrapValues(froms), runtime.unwrapValues(tos)], (from, to) => {
      const tf = runtime.type(from);
      const tt = runtime.type(to);
      switch (tv) {
        case 'array':
          if (['number', 'null'].includes(tf) && ['number', 'null'].includes(tt)) {
            return next(value.slice(Math.trunc(from ?? 0), Math.trunc(to ?? value.length)));
          }
          break;
        case 'string':
          if (['number', 'null'].includes(tf) && ['number', 'null'].includes(tt)) {
            const chars = [...value];
            return next(chars.slice(Math.trunc(from ?? 0), Math.trunc(to ?? chars.length)).join(''));
          }
          break;
        default:
      }
      if (params.optional) return [];
      throw new _library.JPLTypeError('cannot slice %s (%*<100v) with %s (%*<100v) and %s (%*<100v)', tv, value, tf, from, tt, to);
    });
  },
  /** { from: function, to: function, optional: boolean } */
  map(runtime, params) {
    return {
      from: (0, _utils.call)(params.from),
      to: (0, _utils.call)(params.to),
      optional: runtime.assertType(params.optional, 'boolean')
    };
  }
};