summaryrefslogtreecommitdiffstats
path: root/dom/encoding/TextEncoder.cpp
diff options
context:
space:
mode:
authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-19 00:47:55 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-19 00:47:55 +0000
commit26a029d407be480d791972afb5975cf62c9360a6 (patch)
treef435a8308119effd964b339f76abb83a57c29483 /dom/encoding/TextEncoder.cpp
parentInitial commit. (diff)
downloadfirefox-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.cpp55
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