QmlJS: Add a filter for functions to the locator.

Task-number: QTCREATORBUG-2607
Reviewed-by: Erik Verbruggen

src/plugins/qmljstools/qmljslocatordata.cpp

@@ -0,0 +1,218 @@
+/**************************************************************************
+**
+** This file is part of Qt Creator
+**
+** Copyright (c) 2010 Nokia Corporation and/or its subsidiary(-ies).
+**
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** Commercial Usage
+**
+** Licensees holding valid Qt Commercial licenses may use this file in
+** accordance with the Qt Commercial License Agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and Nokia.
+**
+** GNU Lesser General Public License Usage
+**
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at http://qt.nokia.com/contact.
+**
+**************************************************************************/
+
+#include "qmljslocatordata.h"
+
+#include <qmljs/qmljsmodelmanagerinterface.h>
+#include <qmljs/qmljsbind.h>
+#include <qmljs/qmljsinterpreter.h>
+#include <qmljs/parser/qmljsast_p.h>
+
+using namespace QmlJSTools::Internal;
+using namespace QmlJS;
+using namespace QmlJS::Interpreter;
+using namespace QmlJS::AST;
+
+LocatorData::LocatorData(QObject *parent)
+    : QObject(parent)
+{
+    QmlJS::ModelManagerInterface *manager = QmlJS::ModelManagerInterface::instance();
+
+    connect(manager, SIGNAL(documentUpdated(QmlJS::Document::Ptr)),
+            this, SLOT(onDocumentUpdated(QmlJS::Document::Ptr)));
+    connect(manager, SIGNAL(aboutToRemoveFiles(QStringList)),
+            this, SLOT(onAboutToRemoveFiles(QStringList)));
+}
+
+LocatorData::~LocatorData()
+{}
+
+namespace {
+static QString findId(UiObjectInitializer *initializer)
+{
+    if (!initializer)
+        return QString();
+    for (UiObjectMemberList *member = initializer->members; member; member = member->next) {
+        if (UiScriptBinding *script = cast<UiScriptBinding *>(member->member)) {
+            if (!script->qualifiedId || !script->qualifiedId->name || script->qualifiedId->next)
+                continue;
+            if (script->qualifiedId->name->asString() != QLatin1String("id"))
+                continue;
+            if (ExpressionStatement *expStmt = cast<ExpressionStatement *>(script->statement)) {
+                if (IdentifierExpression *identExp = cast<IdentifierExpression *>(expStmt->expression)) {
+                    if (identExp->name)
+                        return identExp->name->asString();
+                }
+            }
+        }
+    }
+    return QString();
+}
+
+class FunctionFinder : protected AST::Visitor
+{
+    QList<LocatorData::Entry> m_entries;
+    Document::Ptr m_doc;
+    QString m_context;
+    QString m_documentContext;
+
+public:
+    FunctionFinder()
+    {}
+
+    QList<LocatorData::Entry> run(const Document::Ptr &doc)
+    {
+        m_doc = doc;
+        if (!doc->componentName().isEmpty()) {
+            m_documentContext = doc->componentName();
+        } else {
+            m_documentContext = QFileInfo(doc->fileName()).fileName();
+        }
+        accept(doc->ast(), m_documentContext);
+        return m_entries;
+    }
+
+protected:
+    QString contextString(const QString &extra)
+    {
+        return QString("%1, %2").arg(extra, m_documentContext);
+    }
+
+    LocatorData::Entry basicEntry(SourceLocation loc)
+    {
+        LocatorData::Entry entry;
+        entry.type = LocatorData::Function;
+        entry.extraInfo = m_context;
+        entry.fileName = m_doc->fileName();
+        entry.line = loc.startLine;
+        entry.column = loc.startColumn - 1;
+        return entry;
+    }
+
+    void accept(Node *ast, const QString &context)
+    {
+        const QString old = m_context;
+        m_context = context;
+        Node::accept(ast, this);
+        m_context = old;
+    }
+
+    bool visit(FunctionDeclaration *ast)
+    {
+        return visit(static_cast<FunctionExpression *>(ast));
+    }
+
+    bool visit(FunctionExpression *ast)
+    {
+        if (!ast->name)
+            return true;
+
+        LocatorData::Entry entry = basicEntry(ast->identifierToken);
+
+        entry.type = LocatorData::Function;
+        entry.displayName = ast->name->asString();
+        entry.displayName += QLatin1Char('(');
+        for (FormalParameterList *it = ast->formals; it; it = it->next) {
+            if (it != ast->formals)
+                entry.displayName += QLatin1String(", ");
+            if (it->name)
+                entry.displayName += it->name->asString();
+        }
+        entry.displayName += QLatin1Char(')');
+        entry.symbolName = entry.displayName;
+
+        m_entries += entry;
+
+        accept(ast->body, contextString(QString("function %1").arg(entry.displayName)));
+        return false;
+    }
+
+    bool visit(UiScriptBinding *ast)
+    {
+        if (!ast->qualifiedId)
+            return true;
+        const QString qualifiedIdString = Bind::toString(ast->qualifiedId);
+
+        if (cast<Block *>(ast->statement)) {
+            LocatorData::Entry entry = basicEntry(ast->qualifiedId->identifierToken);
+            entry.displayName = qualifiedIdString;
+            entry.symbolName = qualifiedIdString;
+            m_entries += entry;
+        }
+
+        accept(ast->statement, contextString(Bind::toString(ast->qualifiedId)));
+        return false;
+    }
+
+    bool visit(UiObjectBinding *ast)
+    {
+        if (!ast->qualifiedTypeNameId)
+            return true;
+
+        QString context = Bind::toString(ast->qualifiedTypeNameId);
+        const QString id = findId(ast->initializer);
+        if (!id.isEmpty())
+            context = QString("%1 (%2)").arg(id, context);
+        accept(ast->initializer, contextString(context));
+        return false;
+    }
+
+    bool visit(UiObjectDefinition *ast)
+    {
+        if (!ast->qualifiedTypeNameId)
+            return true;
+
+        QString context = Bind::toString(ast->qualifiedTypeNameId);
+        const QString id = findId(ast->initializer);
+        if (!id.isEmpty())
+            context = QString("%1 (%2)").arg(id, context);
+        accept(ast->initializer, contextString(context));
+        return false;
+    }
+};
+} // anonymous namespace
+
+QHash<QString, QList<LocatorData::Entry> > LocatorData::entries() const
+{
+    return m_entries;
+}
+
+void LocatorData::onDocumentUpdated(const QmlJS::Document::Ptr &doc)
+{
+    QList<Entry> entries = FunctionFinder().run(doc);
+    m_entries.insert(doc->fileName(), entries);
+}
+
+void LocatorData::onAboutToRemoveFiles(const QStringList &files)
+{
+    foreach (const QString &file, files) {
+        m_entries.remove(file);
+    }
+}
+