Function slowToString

packages/main/test/pages/diffable-html.js:551–619

(encoding, start, end)

    Buffer.byteLength = byteLength

    function slowToString (encoding, start, end) {
      var loweredCase = false

      // No need to verify that "this.length <= MAX_UINT32" since it's a read-only
      // property of a typed array.

      // This behaves neither like String nor Uint8Array in that we set start/end
      // to their upper/lower bounds if the value passed is out of range.
      // undefined is handled specially as per ECMA-262 6th Edition,
      // Section 13.3.3.7 Runtime Semantics: KeyedBindingInitialization.
      if (start === undefined || start < 0) {
        start = 0
      }
      // Return early if start > this.length. Done here to prevent potential uint32
      // coercion fail below.
      if (start > this.length) {
        return ''
      }

      if (end === undefined || end > this.length) {
        end = this.length
      }

      if (end <= 0) {
        return ''
      }

      // Force coersion to uint32. This will also coerce falsey/NaN values to 0.
      end >>>= 0
      start >>>= 0

      if (end <= start) {
        return ''
      }

      if (!encoding) encoding = 'utf8'

      while (true) {
        switch (encoding) {
          case 'hex':
            return hexSlice(this, start, end)

          case 'utf8':
          case 'utf-8':
            return utf8Slice(this, start, end)

          case 'ascii':
            return asciiSlice(this, start, end)

          case 'latin1':
          case 'binary':
            return latin1Slice(this, start, end)

          case 'base64':
            return base64Slice(this, start, end)

          case 'ucs2':
          case 'ucs-2':