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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 /xpcom/ds/nsAtomHashKeys.h
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 'xpcom/ds/nsAtomHashKeys.h')
-rw-r--r--xpcom/ds/nsAtomHashKeys.h51
1 files changed, 51 insertions, 0 deletions
diff --git a/xpcom/ds/nsAtomHashKeys.h b/xpcom/ds/nsAtomHashKeys.h
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+++ b/xpcom/ds/nsAtomHashKeys.h
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+/* -*- 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/. */
+
+/* Definitions for nsAtom-related hash keys */
+
+#ifndef nsAtomHashKeys_h
+#define nsAtomHashKeys_h
+
+#include "nsAtom.h"
+#include "nsHashKeys.h"
+
+// TODO(emilio): Consider removing this and specializing AddToHash instead
+// once bug 1849386 is fixed.
+
+// Hash keys suitable for use in nsTHashTable.
+struct nsAtomHashKey : public nsRefPtrHashKey<nsAtom> {
+ using nsRefPtrHashKey::nsRefPtrHashKey;
+ static PLDHashNumber HashKey(KeyTypePointer aKey) {
+ return MOZ_LIKELY(aKey) ? aKey->hash() : 0;
+ }
+};
+
+struct nsWeakAtomHashKey : public nsPtrHashKey<nsAtom> {
+ using nsPtrHashKey::nsPtrHashKey;
+ static PLDHashNumber HashKey(KeyTypePointer aKey) {
+ return nsAtomHashKey::HashKey(aKey);
+ }
+};
+
+// Hash keys suitable for use in mozilla::HashMap.
+namespace mozilla {
+
+struct AtomHashKey {
+ RefPtr<nsAtom> mKey;
+
+ explicit AtomHashKey(nsAtom* aAtom) : mKey(aAtom) {}
+
+ using Lookup = nsAtom*;
+
+ static HashNumber hash(const Lookup& aKey) { return aKey->hash(); }
+ static bool match(const AtomHashKey& aFirst, const Lookup& aSecond) {
+ return aFirst.mKey == aSecond;
+ }
+};
+
+} // namespace mozilla
+
+#endif // nsAtomHashKeys_h