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49 lines
1.6 KiB
Plaintext
49 lines
1.6 KiB
Plaintext
/* -*- Mode: IDL; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this file,
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* You can obtain one at http://mozilla.org/MPL/2.0/.
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*
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* The origin of this IDL file is
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* http://encoding.spec.whatwg.org/#interface-textencoder
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*/
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interface mixin TextEncoderCommon {
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/*
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* This is DOMString in the spec, but the value is always ASCII
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* and short. By declaring this as ByteString, we get the same
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* end result (storage as inline Latin1 string in SpiderMonkey)
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* with fewer conversions.
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*/
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[Constant]
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readonly attribute ByteString encoding;
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};
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dictionary TextEncoderEncodeIntoResult {
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unsigned long long read;
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unsigned long long written;
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};
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[Exposed=(Window,Worker)]
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interface TextEncoder {
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constructor();
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/*
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* This is spec-wise USVString but marking it as UTF8String as an
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* optimization. (The SpiderMonkey-provided conversion to UTF-8 takes care of
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* replacing lone surrogates with the REPLACEMENT CHARACTER, so the
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* observable behavior of USVString is matched.)
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*/
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[NewObject, Throws]
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Uint8Array encode(optional UTF8String input = "");
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/*
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* The same comment about UTF8String as above applies here with JSString.
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*
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* We use JSString because we don't want to encode the full string, just as
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* much as the capacity of the Uint8Array.
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*/
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[CanOOM]
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TextEncoderEncodeIntoResult encodeInto(JSString source, Uint8Array destination);
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};
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TextEncoder includes TextEncoderCommon;
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