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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 00:47:55 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 00:47:55 +0000 |
commit | 26a029d407be480d791972afb5975cf62c9360a6 (patch) | |
tree | f435a8308119effd964b339f76abb83a57c29483 /dom/encoding/TextEncoder.cpp | |
parent | Initial commit. (diff) | |
download | firefox-26a029d407be480d791972afb5975cf62c9360a6.tar.xz firefox-26a029d407be480d791972afb5975cf62c9360a6.zip |
Adding upstream version 124.0.1.upstream/124.0.1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'dom/encoding/TextEncoder.cpp')
-rw-r--r-- | dom/encoding/TextEncoder.cpp | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/dom/encoding/TextEncoder.cpp b/dom/encoding/TextEncoder.cpp new file mode 100644 index 0000000000..68ee4aa02d --- /dev/null +++ b/dom/encoding/TextEncoder.cpp @@ -0,0 +1,55 @@ +/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* vim: set ts=8 sts=2 et sw=2 tw=80: */ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +#include "mozilla/dom/TextEncoder.h" +#include "mozilla/CheckedInt.h" +#include "mozilla/ErrorResult.h" +#include "mozilla/UniquePtrExtensions.h" +#include "nsReadableUtils.h" + +namespace mozilla::dom { + +void TextEncoder::Encode(JSContext* aCx, JS::Handle<JSObject*> aObj, + const nsACString& aUtf8String, + JS::MutableHandle<JSObject*> aRetval, + ErrorResult& aRv) { + JSAutoRealm ar(aCx, aObj); + JSObject* outView = Uint8Array::Create(aCx, aUtf8String, aRv); + if (aRv.Failed()) { + return; + } + + aRetval.set(outView); +} + +void TextEncoder::EncodeInto(JSContext* aCx, JS::Handle<JSString*> aSrc, + const Uint8Array& aDst, + TextEncoderEncodeIntoResult& aResult, + OOMReporter& aError) { + DebugOnly<size_t> dstLength = 0; + auto maybe = aDst.ProcessData( + [&](const Span<uint8_t>& aData, JS::AutoCheckCannotGC&&) { + dstLength = aData.Length(); + return JS_EncodeStringToUTF8BufferPartial(aCx, aSrc, + AsWritableChars(aData)); + }); + if (!maybe) { + aError.ReportOOM(); + return; + } + size_t read; + size_t written; + std::tie(read, written) = *maybe; + MOZ_ASSERT(written <= dstLength); + aResult.mRead.Construct() = read; + aResult.mWritten.Construct() = written; +} + +void TextEncoder::GetEncoding(nsACString& aEncoding) { + aEncoding.AssignLiteral("utf-8"); +} + +} // namespace mozilla::dom |