Move Codegen::ScanFunctions into it's own file

Change-Id: I2c6c2fa09bc58a26a350011f5d525ec9f4b89d7f
Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>

1 files changed, 158 insertions, 0 deletions

diff --git a/src/qml/compiler/qv4compilerscanfunctions_p.h b/src/qml/compiler/qv4compilerscanfunctions_p.h
new file mode 100644
index 0000000000..3014cbff27
--- /dev/null
+++ b/src/qml/compiler/qv4compilerscanfunctions_p.h
@@ -0,0 +1,158 @@
+/****************************************************************************
+**
+** Copyright (C) 2016 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 QV4COMPILERSCANFUNCTIONS_P_H
+#define QV4COMPILERSCANFUNCTIONS_P_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/qqmljsastvisitor_p.h>
+#include <private/qqmljsast_p.h>
+#include <private/qqmljsengine_p.h>
+#include <private/qv4compilercontext_p.h>
+#include <private/qv4util_p.h>
+#include <QtCore/QStringList>
+#include <QStack>
+
+QT_BEGIN_NAMESPACE
+
+using namespace QQmlJS;
+
+namespace QV4 {
+
+namespace Moth {
+struct Instruction;
+}
+
+namespace CompiledData {
+struct CompilationUnit;
+}
+
+namespace Compiler {
+
+class Codegen;
+
+class ScanFunctions: protected QQmlJS::AST::Visitor
+{
+    typedef QV4::TemporaryAssignment<bool> TemporaryBoolAssignment;
+public:
+    ScanFunctions(Codegen *cg, const QString &sourceCode, CompilationMode defaultProgramMode);
+    void operator()(AST::Node *node);
+
+    void enterEnvironment(AST::Node *node, CompilationMode compilationMode);
+    void leaveEnvironment();
+
+    void enterQmlScope(AST::Node *ast, const QString &name)
+    { enterFunction(ast, name, /*formals*/0, /*body*/0, /*expr*/0, /*isExpression*/false); }
+
+    void enterQmlFunction(AST::FunctionDeclaration *ast)
+    { enterFunction(ast, false, false); }
+
+protected:
+    using Visitor::visit;
+    using Visitor::endVisit;
+
+    void checkDirectivePrologue(AST::SourceElements *ast);
+
+    void checkName(const QStringRef &name, const AST::SourceLocation &loc);
+    void checkForArguments(AST::FormalParameterList *parameters);
+
+    bool visit(AST::Program *ast) override;
+    void endVisit(AST::Program *) override;
+
+    bool visit(AST::CallExpression *ast) override;
+    bool visit(AST::NewMemberExpression *ast) override;
+    bool visit(AST::ArrayLiteral *ast) override;
+    bool visit(AST::VariableDeclaration *ast) override;
+    bool visit(AST::IdentifierExpression *ast) override;
+    bool visit(AST::ExpressionStatement *ast) override;
+    bool visit(AST::FunctionExpression *ast) override;
+
+    void enterFunction(AST::FunctionExpression *ast, bool enterName, bool isExpression = true);
+
+    void endVisit(AST::FunctionExpression *) override;
+
+    bool visit(AST::ObjectLiteral *ast) override;
+
+    bool visit(AST::PropertyGetterSetter *ast) override;
+    void endVisit(AST::PropertyGetterSetter *) override;
+
+    bool visit(AST::FunctionDeclaration *ast) override;
+    void endVisit(AST::FunctionDeclaration *) override;
+
+    bool visit(AST::WithStatement *ast) override;
+
+    bool visit(AST::DoWhileStatement *ast) override;
+    bool visit(AST::ForStatement *ast) override;
+    bool visit(AST::LocalForStatement *ast) override;
+    bool visit(AST::ForEachStatement *ast) override;
+    bool visit(AST::LocalForEachStatement *ast) override;
+    bool visit(AST::ThisExpression *ast) override;
+
+    bool visit(AST::Block *ast) override;
+
+protected:
+    void enterFunction(AST::Node *ast, const QString &name, AST::FormalParameterList *formals, AST::FunctionBody *body, AST::FunctionExpression *expr, bool isExpression);
+
+// fields:
+    Codegen *_cg;
+    const QString _sourceCode;
+    Context *_context;
+    QStack<Context *> _contextStack;
+
+    bool _allowFuncDecls;
+    CompilationMode defaultProgramMode;
+};
+
+}
+
+}
+
+QT_END_NAMESPACE
+
+#endif // QV4CODEGEN_P_H