Initial import.

1 files changed, 242 insertions, 0 deletions

diff --git a/generator/shellimplgenerator.cpp b/generator/shellimplgenerator.cpp
new file mode 100644
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--- /dev/null
+++ b/generator/shellimplgenerator.cpp
@@ -0,0 +1,242 @@
+/****************************************************************************
+**
+** Copyright (C) 2008-2009 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the Qt Script Generator project on Qt Labs.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the Technology Preview License Agreement accompanying
+** this package.
+**
+** 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.
+**
+** In addition, as a special exception, Nokia gives you certain additional
+** rights.  These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "shellimplgenerator.h"
+#include "reporthandler.h"
+#include "fileout.h"
+
+extern void declareFunctionMetaTypes(QTextStream &stream,
+                                     const AbstractMetaFunctionList &functions,
+                                     QSet<QString> &registeredTypeNames);
+
+QString ShellImplGenerator::fileNameForClass(const AbstractMetaClass *meta_class) const
+{
+    return QString("qtscriptshell_%1.cpp").arg(meta_class->name());
+}
+
+static bool include_less_than(const Include &a, const Include &b)
+{
+    return a.name < b.name;
+}
+
+static void writeHelperCode(QTextStream &s, const AbstractMetaClass *)
+{
+    s << "#define QTSCRIPT_IS_GENERATED_FUNCTION(fun) ((fun.data().toUInt32() & 0xFFFF0000) == 0xBABE0000)" << endl;
+    s << endl;
+}
+
+void writeQtScriptQtBindingsLicense(QTextStream &stream);
+
+void ShellImplGenerator::write(QTextStream &s, const AbstractMetaClass *meta_class)
+{
+    if (FileOut::license)
+        writeQtScriptQtBindingsLicense(s);
+
+    QString packName = meta_class->package().replace(".", "_");
+
+    priGenerator->addSource(packName, fileNameForClass(meta_class));
+
+    s << "#include \"qtscriptshell_" << meta_class->name() << ".h\"" << endl << endl;
+
+    if (!meta_class->generateShellClass())
+        return;
+
+    s << "#include <QtScript/QScriptEngine>" << endl;
+
+    IncludeList list = meta_class->typeEntry()->extraIncludes();
+    qSort(list.begin(), list.end(), include_less_than);
+    foreach (const Include &inc, list) {
+        if (inc.type == Include::TargetLangImport)
+            continue;
+
+        s << "#include ";
+        if (inc.type == Include::LocalPath)
+            s << "\"";
+        else
+            s << "<";
+
+        s << inc.name;
+
+        if (inc.type == Include::LocalPath)
+            s << "\"";
+        else
+            s << ">";
+
+        s << endl;
+    }
+    s << endl;
+
+    writeHelperCode(s, meta_class);
+
+    // find constructors
+    AbstractMetaFunctionList ctors;
+    ctors = meta_class->queryFunctions(AbstractMetaClass::Constructors
+                                       | AbstractMetaClass::WasVisible
+                                       | AbstractMetaClass::NotRemovedFromTargetLang);
+    // find member functions
+    AbstractMetaFunctionList functions = meta_class->queryFunctions(
+        AbstractMetaClass:: VirtualFunctions | AbstractMetaClass::WasVisible
+        | AbstractMetaClass::NotRemovedFromTargetLang
+        );
+
+    // write metatype declarations
+    {
+        QSet<QString> registeredTypeNames = m_qmetatype_declared_typenames;
+        declareFunctionMetaTypes(s, functions, registeredTypeNames);
+        s << endl;
+    }
+
+    // write constructors
+    foreach (const AbstractMetaFunction *ctor, ctors) {
+        s << "QtScriptShell_" << meta_class->name() << "::";
+        writeFunctionSignature(s, ctor, 0, QString(), Option(OriginalName | ShowStatic));
+        s << endl;
+        s << "    : " << meta_class->qualifiedCppName() << "(";
+        AbstractMetaArgumentList args = ctor->arguments();
+        for (int i = 0; i < args.size(); ++i) {
+            if (i > 0)
+                s << ", ";
+            s << args.at(i)->argumentName();
+        }
+        s << ")" << " {}" << endl << endl;
+    }
+
+    // write destructor
+    s << "QtScriptShell_" << meta_class->name() << "::"
+      << "~QtScriptShell_" << meta_class->name() << "()";
+    if (!meta_class->destructorException().isEmpty())
+        s << " " << meta_class->destructorException();
+    s << " {}" << endl << endl;
+
+    // write member functions
+    for (int i = 0; i < functions.size(); ++i) {
+        AbstractMetaFunction *fun = functions.at(i);
+        writeFunctionSignature(s, fun, meta_class, QString(),
+                               Option(OriginalName | ShowStatic | UnderscoreSpaces),
+                               "QtScriptShell_");
+        s << endl << "{" << endl;
+        QString scriptFunctionName = fun->name();
+        {
+            QPropertySpec *read = 0;
+            for (const AbstractMetaClass *cls = meta_class; !read && cls; cls = cls->baseClass())
+                read = cls->propertySpecForRead(fun->name());
+            if (read && (read->name() == fun->name())) {
+                // use different name to avoid infinite recursion
+                // ### not sure if this is the best solution though...
+                scriptFunctionName.prepend("_qs_");
+            }
+        }
+        s << "    QScriptValue _q_function = __qtscript_self.property(\""
+          << scriptFunctionName << "\");" << endl;
+        s << "    if (!_q_function.isFunction() || QTSCRIPT_IS_GENERATED_FUNCTION(_q_function)" << endl
+          << "        || (__qtscript_self.propertyFlags(\"" << scriptFunctionName << "\") & QScriptValue::QObjectMember)) {" << endl;
+
+        AbstractMetaArgumentList args = fun->arguments();
+        s << "        ";
+        if (fun->isAbstract()) {
+            s << "qFatal(\"" << meta_class->name() << "::" << fun->name()
+              << "() is abstract!\");" << endl;
+        } else {
+            // call the C++ implementation
+            if (fun->type())
+                s << "return ";
+            s << meta_class->qualifiedCppName() << "::" << fun->originalName() << "(";
+            for (int i = 0; i < args.size(); ++i) {
+                if (i > 0)
+                    s << ", ";
+                s << args.at(i)->argumentName();
+            }
+            s << ");" << endl;
+        }
+
+        s << "    } else {" << endl;
+
+        // call the script function
+        if (args.size() > 0)
+            s << "        QScriptEngine *_q_engine = __qtscript_self.engine();" << endl;
+        s << "        ";
+        if (fun->type()) {
+            s << "return qscriptvalue_cast<";
+            writeTypeInfo(s, fun->type());
+            s << ">(";
+        }
+        s << "_q_function.call(__qtscript_self";
+        if (args.size() > 0) {
+            s << "," << endl;
+            s << "            QScriptValueList()";
+            int i = 0;
+            for (int j = 0; j < args.size(); ++j) {
+                if (fun->argumentRemoved(j+1))
+                    continue;
+                s << endl << "            << ";
+                s << "qScriptValueFromValue(_q_engine, ";
+                AbstractMetaType *atype = args.at(j)->type();
+                QString asig = atype->cppSignature();
+                bool constCastArg = asig.endsWith('*') && asig.startsWith("const ");
+                if (constCastArg) {
+                    s << "const_cast<" << asig << ">(";
+                }
+                s << args.at(i)->argumentName() << ")";
+                if (constCastArg)
+                    s << ")";
+                ++i;
+            }
+        }
+        s << ")";
+        if (fun->type())
+            s << ")";
+        s << ";" << endl;
+
+        s << "    }" << endl;
+
+        s << "}" << endl << endl;
+    }
+}
+
+void ShellImplGenerator::writeInjectedCode(QTextStream &s, const AbstractMetaClass *meta_class)
+{
+    CodeSnipList code_snips = meta_class->typeEntry()->codeSnips();
+    foreach (const CodeSnip &cs, code_snips) {
+        if (cs.language == TypeSystem::ShellCode) {
+            s << cs.code() << endl;
+        }
+    }
+}