Encoding.widl

interface mixin TextDecoderCommon {
  readonly attribute DOMString encoding;
  readonly attribute boolean fatal;
  readonly attribute boolean ignoreBOM;
};

dictionary TextDecoderOptions {
  boolean fatal = false;
  boolean ignoreBOM = false;
};

dictionary TextDecodeOptions {
  boolean stream = false;
};

[Exposed=(Window,Worker)]
interface TextDecoder {
  constructor(optional DOMString label = "utf-8", optional TextDecoderOptions options = {});

  USVString decode(optional [AllowShared] BufferSource input, optional TextDecodeOptions options = {});
};
TextDecoder includes TextDecoderCommon;

interface mixin TextEncoderCommon {
  readonly attribute DOMString encoding;
};

dictionary TextEncoderEncodeIntoResult {
  unsigned long long read;
  unsigned long long written;
};

[Exposed=(Window,Worker)]
interface TextEncoder {
  constructor();

  [NewObject] Uint8Array encode(optional USVString input = "");
  TextEncoderEncodeIntoResult encodeInto(USVString source, [AllowShared] Uint8Array destination);
};
TextEncoder includes TextEncoderCommon;

[Exposed=(Window,Worker)]
interface TextDecoderStream {
  constructor(optional DOMString label = "utf-8", optional TextDecoderOptions options = {});
};
TextDecoderStream includes TextDecoderCommon;
TextDecoderStream includes GenericTransformStream;

[Exposed=(Window,Worker)]
interface TextEncoderStream {
  constructor();
};
TextEncoderStream includes TextEncoderCommon;
TextEncoderStream includes GenericTransformStream;