/* Generated by `npm run build`, do not edit! */

"use strict"

module.exports = function(Parser) {
  return /*@__PURE__*/(function (Parser) {
    function anonymous () {
      Parser.apply(this, arguments);
    }

    if ( Parser ) anonymous.__proto__ = Parser;
    anonymous.prototype = Object.create( Parser && Parser.prototype );
    anonymous.prototype.constructor = anonymous;

    anonymous.prototype.readInt = function readInt (radix, len) {
      // Hack: len is only != null for unicode escape sequences,
      // where numeric separators are not allowed
      if (len != null) { return Parser.prototype.readInt.call(this, radix, len) }

      var start = this.pos, total = 0, acceptUnderscore = false
      for (;;) {
        var code = this.input.charCodeAt(this.pos), val = (void 0)
        if (code >= 97) { val = code - 97 + 10 } // a
        else if (code == 95) {
          if (!acceptUnderscore) { this.raise(this.pos, "Invalid numeric separator") }
          ++this.pos
          acceptUnderscore = false
          continue
        } else if (code >= 65) { val = code - 65 + 10 } // A
        else if (code >= 48 && code <= 57) { val = code - 48 } // 0-9
        else { val = Infinity }
        if (val >= radix) { break }
        ++this.pos
        total = total * radix + val
        acceptUnderscore = true
      }
      if (this.pos === start) { return null }
      if (!acceptUnderscore) { this.raise(this.pos - 1, "Invalid numeric separator") }

      return total
    };

    anonymous.prototype.readNumber = function readNumber (startsWithDot) {
      var token = Parser.prototype.readNumber.call(this, startsWithDot)
      var octal = this.end - this.start >= 2 && this.input.charCodeAt(this.start) === 48
      var stripped = this.getNumberInput(this.start, this.end)
      if (stripped.length < this.end - this.start) {
        if (octal) { this.raise(this.start, "Invalid number") }
        this.value = parseFloat(stripped)
      }
      return token
    };

    // This is used by acorn-bigint
    anonymous.prototype.getNumberInput = function getNumberInput (start, end) {
      return this.input.slice(start, end).replace(/_/g, "")
    };

    return anonymous;
  }(Parser))
}