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/* 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/. */
/*
* Infrastructure for sharing DOMString data with JSStrings.
*
* Importing an nsAString into JS:
* If possible (GetSharedBufferHandle works) use the external string support in
* JS to create a JSString that points to the readable's buffer. We keep a
* reference to the buffer handle until the JSString is finalized.
*
* Exporting a JSString as an nsAReadable:
* Wrap the JSString with a root-holding XPCJSReadableStringWrapper, which roots
* the string and exposes its buffer via the nsAString interface, as
* well as providing refcounting support.
*/
#include "xpcpublic.h"
using namespace JS;
const XPCStringConvert::LiteralExternalString
XPCStringConvert::sLiteralExternalString;
void XPCStringConvert::LiteralExternalString::finalize(
JS::Latin1Char* aChars) const {
// Nothing to do.
}
void XPCStringConvert::LiteralExternalString::finalize(char16_t* aChars) const {
// Nothing to do.
}
size_t XPCStringConvert::LiteralExternalString::sizeOfBuffer(
const JS::Latin1Char* aChars, mozilla::MallocSizeOf aMallocSizeOf) const {
// This string's buffer is not heap-allocated, so its malloc size is 0.
return 0;
}
size_t XPCStringConvert::LiteralExternalString::sizeOfBuffer(
const char16_t* aChars, mozilla::MallocSizeOf aMallocSizeOf) const {
// This string's buffer is not heap-allocated, so its malloc size is 0.
return 0;
}