Re-arrange qv4identifier{_p.h|.cpp}

QV4::IdentifierHashData doesn't need to be visible to all the clients.
Furthermore, it can be completely inline. The public functions of
QV4::IdentifierHash need to be out of line, but the private ones can be
all inline. This shouldn't make much of a difference as most of the
public functions call at least one private function. Finally, the files
should be named by the class names.

Change-Id: I931f2aa71103e41fdd3dae9cc47d204edece0e12
Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>

1 files changed, 122 insertions, 0 deletions

diff --git a/src/qml/jsruntime/qv4identifierhashdata_p.h b/src/qml/jsruntime/qv4identifierhashdata_p.h
new file mode 100644
index 0000000000..a4ea40c524
--- /dev/null
+++ b/src/qml/jsruntime/qv4identifierhashdata_p.h
@@ -0,0 +1,122 @@
+/****************************************************************************
+**
+** Copyright (C) 2020 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the QtQml module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 3 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL3 included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 3 requirements
+** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 2.0 or (at your option) the GNU General
+** Public license version 3 or any later version approved by the KDE Free
+** Qt Foundation. The licenses are as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-2.0.html and
+** https://www.gnu.org/licenses/gpl-3.0.html.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+#ifndef QV4IDENTIFIERHASHDATA_H
+#define QV4IDENTIFIERHASHDATA_H
+
+//
+//  W A R N I N G
+//  -------------
+//
+// This file is not part of the Qt API.  It exists purely as an
+// implementation detail.  This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+//
+
+#include <private/qv4global_p.h>
+#include <private/qv4propertykey_p.h>
+#include <private/qv4identifiertable_p.h>
+#include <QtCore/qatomic.h>
+
+QT_BEGIN_NAMESPACE
+
+namespace QV4 {
+
+struct IdentifierHashEntry {
+    PropertyKey identifier;
+    int value;
+};
+
+struct IdentifierHashData
+{
+    IdentifierHashData(IdentifierTable *table, int numBits)
+        : size(0)
+        , numBits(numBits)
+        , identifierTable(table)
+    {
+        refCount.storeRelaxed(1);
+        alloc = qPrimeForNumBits(numBits);
+        entries = (IdentifierHashEntry *)malloc(alloc*sizeof(IdentifierHashEntry));
+        memset(entries, 0, alloc*sizeof(IdentifierHashEntry));
+        identifierTable->addIdentifierHash(this);
+    }
+
+    explicit IdentifierHashData(IdentifierHashData *other)
+        : size(other->size)
+        , numBits(other->numBits)
+        , identifierTable(other->identifierTable)
+    {
+        refCount.storeRelaxed(1);
+        alloc = other->alloc;
+        entries = (IdentifierHashEntry *)malloc(alloc*sizeof(IdentifierHashEntry));
+        memcpy(entries, other->entries, alloc*sizeof(IdentifierHashEntry));
+        identifierTable->addIdentifierHash(this);
+    }
+
+    ~IdentifierHashData() {
+        free(entries);
+        if (identifierTable)
+            identifierTable->removeIdentifierHash(this);
+    }
+
+    void markObjects(MarkStack *markStack) const
+    {
+        IdentifierHashEntry *e = entries;
+        IdentifierHashEntry *end = e + alloc;
+        while (e < end) {
+            if (Heap::Base *o = e->identifier.asStringOrSymbol())
+                o->mark(markStack);
+            ++e;
+        }
+    }
+
+    QBasicAtomicInt refCount;
+    int alloc;
+    int size;
+    int numBits;
+    IdentifierTable *identifierTable;
+    IdentifierHashEntry *entries;
+};
+
+} // namespace QV4
+
+QT_END_NAMESPACE
+
+#endif // QV4IDENTIFIERHASHDATA_P_H