Commit 40ce2289 authored by Thomas Hartmann's avatar Thomas Hartmann
Browse files

Created a utility property reading class

parent 23ba1ea2
...@@ -22,6 +22,7 @@ HEADERS += \ ...@@ -22,6 +22,7 @@ HEADERS += \
$$PWD/qmljsscopebuilder.h \ $$PWD/qmljsscopebuilder.h \
$$PWD/qmljslineinfo.h \ $$PWD/qmljslineinfo.h \
$$PWD/qmljscompletioncontextfinder.h \ $$PWD/qmljscompletioncontextfinder.h \
$$PWD/qmljspropertyreader.h \
$$PWD/qmljsrewriter.h $$PWD/qmljsrewriter.h
SOURCES += \ SOURCES += \
...@@ -35,6 +36,7 @@ SOURCES += \ ...@@ -35,6 +36,7 @@ SOURCES += \
$$PWD/qmljsscopebuilder.cpp \ $$PWD/qmljsscopebuilder.cpp \
$$PWD/qmljslineinfo.cpp \ $$PWD/qmljslineinfo.cpp \
$$PWD/qmljscompletioncontextfinder.cpp \ $$PWD/qmljscompletioncontextfinder.cpp \
$$PWD/qmljspropertyreader.cpp \
$$PWD/qmljsrewriter.cpp $$PWD/qmljsrewriter.cpp
OTHER_FILES += \ OTHER_FILES += \
......
/**************************************************************************
**
** 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 "qmljspropertyreader.h"
#include "qmljsdocument.h"
#include <qmljs/parser/qmljsast_p.h>
namespace QmlJS {
using namespace AST;
namespace {
static inline QString deEscape(const QString &value)
{
QString result = value;
result.replace(QLatin1String("\\\\"), QLatin1String("\\"));
result.replace(QLatin1String("\\\""), QLatin1String("\""));
result.replace(QLatin1String("\\\t"), QLatin1String("\t"));
result.replace(QLatin1String("\\\r"), QLatin1String("\r"));
result.replace(QLatin1String("\\\n"), QLatin1String("\n"));
return result;
}
static inline QString stripQuotes(const QString &str)
{
if ((str.startsWith(QLatin1Char('"')) && str.endsWith(QLatin1Char('"')))
|| (str.startsWith(QLatin1Char('\'')) && str.endsWith(QLatin1Char('\''))))
return str.mid(1, str.length() - 2);
return str;
}
static bool isLiteralValue(ExpressionNode *expr)
{
if (cast<NumericLiteral*>(expr))
return true;
else if (cast<StringLiteral*>(expr))
return true;
else if (UnaryPlusExpression *plusExpr = cast<UnaryPlusExpression*>(expr))
return isLiteralValue(plusExpr->expression);
else if (UnaryMinusExpression *minusExpr = cast<UnaryMinusExpression*>(expr))
return isLiteralValue(minusExpr->expression);
else if (cast<TrueLiteral*>(expr))
return true;
else if (cast<FalseLiteral*>(expr))
return true;
else
return false;
}
static inline bool isLiteralValue(UiScriptBinding *script)
{
if (!script || !script->statement)
return false;
ExpressionStatement *exprStmt = cast<ExpressionStatement *>(script->statement);
if (exprStmt)
return isLiteralValue(exprStmt->expression);
else
return false;
}
static inline QString textAt(const Document* doc,
const SourceLocation &from,
const SourceLocation &to)
{
return doc->source().mid(from.offset, to.end() - from.begin());
}
static inline int propertyType(const QString &typeName)
{
if (typeName == QLatin1String("bool"))
return QMetaType::type("bool");
else if (typeName == QLatin1String("color"))
return QMetaType::type("QColor");
else if (typeName == QLatin1String("date"))
return QMetaType::type("QDate");
else if (typeName == QLatin1String("int"))
return QMetaType::type("int");
else if (typeName == QLatin1String("real"))
return QMetaType::type("double");
else if (typeName == QLatin1String("double"))
return QMetaType::type("double");
else if (typeName == QLatin1String("string"))
return QMetaType::type("QString");
else if (typeName == QLatin1String("url"))
return QMetaType::type("QUrl");
else if (typeName == QLatin1String("variant"))
return QMetaType::type("QVariant");
else
return -1;
}
static inline QString flatten(UiQualifiedId *qualifiedId)
{
QString result;
for (UiQualifiedId *iter = qualifiedId; iter; iter = iter->next) {
if (!iter->name)
continue;
if (!result.isEmpty())
result.append(QLatin1Char('.'));
result.append(iter->name->asString());
}
return result;
}
static bool isEnum(AST::Statement *ast);
bool isEnum(AST::ExpressionNode *ast)
{
if (!ast)
return false;
if (FieldMemberExpression *memberExpr = cast<AST::FieldMemberExpression*>(ast))
return isEnum(memberExpr->base);
else if (cast<IdentifierExpression*>(ast))
return true;
else
return false;
}
bool isEnum(AST::ExpressionStatement *ast)
{
if (!ast)
return false;
if (FieldMemberExpression *memberExpr = cast<AST::FieldMemberExpression*>(ast->expression))
return isEnum(memberExpr->base);
else if (cast<IdentifierExpression*>(ast->expression))
return true;
else
return false;
}
static bool isEnum(AST::Statement *ast)
{
if (!ast)
return false;
if (ExpressionStatement *exprStmt = cast<ExpressionStatement*>(ast)) {
return isEnum(exprStmt->expression);
}
return false;
}
} // anonymous namespace
PropertyReader::PropertyReader(Document *doc, AST::UiObjectInitializer *ast)
{
for (UiObjectMemberList *members = ast->members; members; members = members->next) {
UiObjectMember *member = members->member;
if (UiScriptBinding *property = AST::cast<UiScriptBinding *>(member)) {
if (!property->qualifiedId)
continue; // better safe than sorry.
const QString propertyName = flatten(property->qualifiedId);
const QString astValue = textAt(doc,
property->statement->firstSourceLocation(),
property->statement->lastSourceLocation());
if (isLiteralValue(property)) {
m_properties.insert(propertyName, QVariant(deEscape(stripQuotes(astValue))));
} else if (isEnum(property->statement)) { //enum
m_properties.insert(propertyName, QVariant(astValue));
}
} else if (UiObjectDefinition *objectDefinition = cast<UiObjectDefinition *>(member)) { //font { bold: true }
const QString propertyName = objectDefinition->qualifiedTypeNameId->name->asString();
if (!propertyName.isEmpty() && !propertyName.at(0).isUpper()) {
for (UiObjectMemberList *iter = objectDefinition->initializer->members; iter; iter = iter->next) {
UiObjectMember *objectMember = iter->member;
if (UiScriptBinding *property = cast<UiScriptBinding *>(objectMember)) {
const QString propertyNamePart2 = flatten(property->qualifiedId);
const QString astValue = textAt(doc,
property->statement->firstSourceLocation(),
property->statement->lastSourceLocation());
if (isLiteralValue(property)) {
m_properties.insert(propertyName + '.' + propertyNamePart2, QVariant(deEscape(stripQuotes(astValue))));
} else if (isEnum(property->statement)) { //enum
m_properties.insert(propertyName + '.' + propertyNamePart2, QVariant(astValue));
}
}
}
}
}
}
}
} //QmlJS
/**************************************************************************
**
** 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.
**
**************************************************************************/
#ifndef QMLJSPROPERTYREADER_H
#define QMLJSPROPERTYREADER_H
#include <qmljs/qmljs_global.h>
#include <qmljs/parser/qmljsastfwd_p.h>
#include <QHash>
#include <QVariant>
#include <QString>
#include <QStringList>
namespace QmlJS {
class Document;
class QMLJS_EXPORT PropertyReader
{
public:
PropertyReader(Document *doc, AST::UiObjectInitializer *ast);
bool hasProperty(const QString &propertyName) const
{ return m_properties.contains(propertyName); }
QVariant readProperty(const QString &propertyName) const
{
if (hasProperty(propertyName))
return m_properties.value(propertyName);
else
return QVariant();
}
QStringList properties() const
{ return m_properties.keys(); }
private:
QHash<QString, QVariant> m_properties;
};
} //QmlJS
#endif // QMLJSPROPERTYREADER_H
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