1 files changed, 632 insertions, 0 deletions
diff --git a/src/declarative/qml/qmlscriptparser.cpp b/src/declarative/qml/qmlscriptparser.cpp
new file mode 100644
index 0000000..317a3bf
--- /dev/null
+++ b/src/declarative/qml/qmlscriptparser.cpp
@@ -0,0 +1,632 @@
+
+#include "qmlscriptparser_p.h"
+#include "qmlxmlparser_p.h"
+#include "qmlparser_p.h"
+
+#include "parser/javascriptengine_p.h"
+#include "parser/javascriptparser_p.h"
+#include "parser/javascriptlexer_p.h"
+#include "parser/javascriptnodepool_p.h"
+#include "parser/javascriptastvisitor_p.h"
+#include "parser/javascriptast_p.h"
+
+#include <QStack>
+#include <QtDebug>
+
+QT_BEGIN_NAMESPACE
+
+using namespace JavaScript;
+using namespace QmlParser;
+
+namespace {
+
+class ProcessAST: protected AST::Visitor
+{
+    struct State {
+        State() : object(0), property(0) {}
+        State(Object *o) : object(o), property(0) {}
+        State(Object *o, Property *p) : object(o), property(p) {}
+
+        Object *object;
+        Property *property;
+    };
+
+    struct StateStack : public QStack<State>
+    {
+        void pushObject(Object *obj)
+        {
+            push(State(obj));
+        }
+
+        void pushProperty(const QString &name, int lineNumber)
+        {
+            const State &state = top();
+            if (state.property) {
+                State s(state.property->getValue(),
+                        state.property->getValue()->getProperty(name.toLatin1()));
+                s.property->line = lineNumber;
+                push(s);
+            } else {
+                State s(state.object,
+                        state.object->getProperty(name.toLatin1()));
+                s.property->line = lineNumber;
+                push(s);
+            }
+        }
+    };
+
+public:
+    ProcessAST(QmlScriptParser *parser);
+    virtual ~ProcessAST();
+
+    void operator()(const QString &code, AST::Node *node);
+
+protected:
+    Object *defineObjectBinding(int line,
+                             AST::UiQualifiedId *propertyName,
+                             const QString &objectType,
+                             AST::UiObjectInitializer *initializer = 0);
+    Object *defineObjectBinding_helper(int line,
+                             AST::UiQualifiedId *propertyName,
+                             const QString &objectType,
+                             AST::UiObjectInitializer *initializer = 0);
+    QString getPrimitive(const QByteArray &propertyName, AST::ExpressionNode *expr);
+    void defineProperty(const QString &propertyName, int line, const QString &primitive);
+
+    using AST::Visitor::visit;
+    using AST::Visitor::endVisit;
+
+    virtual bool visit(AST::UiProgram *node);
+    virtual bool visit(AST::UiImport *node);
+    virtual bool visit(AST::UiObjectDefinition *node);
+    virtual bool visit(AST::UiPublicMember *node);
+    virtual bool visit(AST::UiObjectBinding *node);
+
+    virtual bool visit(AST::UiScriptBinding *node);
+    virtual bool visit(AST::UiArrayBinding *node);
+    virtual bool visit(AST::UiSourceElement *node);
+
+    void accept(AST::Node *node);
+
+    QString asString(AST::UiQualifiedId *node) const;
+
+    const State state() const;
+    Object *currentObject() const;
+    Property *currentProperty() const;
+
+    QString qualifiedNameId() const;
+
+    QString textAt(const AST::SourceLocation &loc) const
+    { return _contents.mid(loc.offset, loc.length); }
+
+    QString textAt(const AST::SourceLocation &first,
+                   const AST::SourceLocation &last) const
+    { return _contents.mid(first.offset, last.offset + last.length - first.offset); }
+
+    QString asString(AST::ExpressionNode *expr) const
+    {
+        if (! expr)
+            return QString();
+
+        return textAt(expr->firstSourceLocation(), expr->lastSourceLocation());
+    }
+
+    QString asString(AST::Statement *stmt) const
+    {
+        if (! stmt)
+            return QString();
+
+        QString s = textAt(stmt->firstSourceLocation(), stmt->lastSourceLocation());
+        s += QLatin1Char('\n');
+        return s;
+    }
+
+private:
+    QmlScriptParser *_parser;
+    StateStack _stateStack;
+    QStringList _scope;
+    QString _contents;
+
+    inline bool isSignalProperty(const QByteArray &propertyName) const {
+        return (propertyName.length() >= 3 && propertyName.startsWith("on") &&
+                ('A' <= propertyName.at(2) && 'Z' >= propertyName.at(2)));
+    }
+
+};
+
+ProcessAST::ProcessAST(QmlScriptParser *parser)
+    : _parser(parser)
+{
+}
+
+ProcessAST::~ProcessAST()
+{
+}
+
+void ProcessAST::operator()(const QString &code, AST::Node *node)
+{
+    _contents = code;
+    accept(node);
+}
+
+void ProcessAST::accept(AST::Node *node)
+{
+    AST::Node::acceptChild(node, this);
+}
+
+const ProcessAST::State ProcessAST::state() const
+{
+    if (_stateStack.isEmpty())
+        return State();
+
+    return _stateStack.back();
+}
+
+Object *ProcessAST::currentObject() const
+{
+    return state().object;
+}
+
+Property *ProcessAST::currentProperty() const
+{
+    return state().property;
+}
+
+QString ProcessAST::qualifiedNameId() const
+{
+    return _scope.join(QLatin1String("/"));
+}
+
+QString ProcessAST::asString(AST::UiQualifiedId *node) const
+{
+    QString s;
+
+    for (AST::UiQualifiedId *it = node; it; it = it->next) {
+        s.append(it->name->asString());
+
+        if (it->next)
+            s.append(QLatin1Char('.'));
+    }
+
+    return s;
+}
+
+Object *ProcessAST::defineObjectBinding_helper(int line,
+                                     AST::UiQualifiedId *propertyName,
+                                     const QString &objectType,
+                                     AST::UiObjectInitializer *initializer)
+{
+    bool isType = !objectType.isEmpty() && objectType.at(0).isUpper() && !objectType.contains(QLatin1Char('.'));
+    if (!isType) {
+        qWarning() << "bad name for a class"; // ### FIXME
+        return false;
+    }
+
+    int propertyCount = 0;
+    for (; propertyName; propertyName = propertyName->next){
+        ++propertyCount;
+        _stateStack.pushProperty(propertyName->name->asString(), propertyName->identifierToken.startLine);
+    }
+
+    // Class
+    const int typeId = _parser->findOrCreateTypeId(objectType);
+
+    Object *obj = new Object;
+    obj->type = typeId;
+    _scope.append(objectType);
+    obj->typeName = qualifiedNameId().toLatin1();
+    _scope.removeLast();
+    obj->line = line;
+
+    if (propertyCount) {
+        Property *prop = currentProperty();
+        Value *v = new Value;
+        v->object = obj;
+        v->line = line;
+        prop->addValue(v);
+
+        while (propertyCount--)
+            _stateStack.pop();
+
+    } else {
+
+        if (! _parser->tree()) {
+            _parser->setTree(obj);
+
+            if (!_parser->scriptFile().isEmpty()) {
+                _stateStack.pushObject(obj);
+                Object *scriptObject= defineObjectBinding(line, 0, QLatin1String("Script"));
+                _stateStack.pushObject(scriptObject);
+                defineProperty(QLatin1String("src"), line, _parser->scriptFile());
+                _stateStack.pop(); // scriptObject
+                _stateStack.pop(); // object
+            }
+
+        } else {
+            const State state = _stateStack.top();
+            Value *v = new Value;
+            v->object = obj;
+            v->line = line;
+            if (state.property)
+                state.property->addValue(v);
+            else
+                state.object->getDefaultProperty()->addValue(v);
+        }
+    }
+
+    _stateStack.pushObject(obj);
+    accept(initializer);
+    _stateStack.pop();
+
+    return obj;
+}
+
+Object *ProcessAST::defineObjectBinding(int line,
+                                     AST::UiQualifiedId *qualifiedId,
+                                     const QString &objectType,
+                                     AST::UiObjectInitializer *initializer)
+{
+    if (objectType == QLatin1String("Connection")) {
+
+        Object *obj = defineObjectBinding_helper(line, 0, QLatin1String("Connection"));
+
+        _stateStack.pushObject(obj);
+
+        AST::UiObjectMemberList *it = initializer->members;
+        for (; it; it = it->next) {
+            AST::UiScriptBinding *scriptBinding = AST::cast<AST::UiScriptBinding *>(it->member);
+            if (! scriptBinding)
+                continue;
+
+            QString propertyName = asString(scriptBinding->qualifiedId);
+            if (propertyName == QLatin1String("script")) {
+                QString script;
+                if (AST::ExpressionStatement *stmt = AST::cast<AST::ExpressionStatement *>(scriptBinding->statement)) {
+                    script = getPrimitive("script", stmt->expression);
+                } else {
+                    script = asString(scriptBinding->statement);
+                }
+                defineProperty(QLatin1String("script"), line, script);
+            } else {
+                accept(it->member);
+            }
+        }
+
+        _stateStack.pop(); // object
+
+        return obj;
+    }
+
+    return defineObjectBinding_helper(line, qualifiedId, objectType, initializer);
+}
+
+void ProcessAST::defineProperty(const QString &propertyName, int line, const QString &primitive)
+{
+    _stateStack.pushProperty(propertyName, line);
+    Value *value = new Value;
+    value->primitive = primitive;
+    value->line = line;
+    currentProperty()->addValue(value);
+    _stateStack.pop();
+}
+
+// UiProgram: UiImportListOpt UiObjectMemberList ;
+bool ProcessAST::visit(AST::UiProgram *node)
+{
+    accept(node->imports);
+    accept(node->members->member);
+    return false;
+}
+
+// UiImport: T_IMPORT T_STRING_LITERAL ;
+bool ProcessAST::visit(AST::UiImport *node)
+{
+    QString fileName = node->fileName->asString();
+    _parser->addNamespacePath(fileName);
+    return false;
+}
+
+// UiObjectMember: T_PUBLIC UiMemberType T_IDENTIFIER T_COLON Expression
+// UiObjectMember: T_PUBLIC UiMemberType T_IDENTIFIER
+//
+// UiMemberType: "property" | "signal"
+bool ProcessAST::visit(AST::UiPublicMember *node)
+{
+    const QString memberType = node->memberType->asString();
+    const QString name = node->name->asString();
+
+    if (memberType == QLatin1String("property")) {
+        _stateStack.pushProperty(QLatin1String("properties"), node->publicToken.startLine);
+
+        Object *obj = defineObjectBinding(node->identifierToken.startLine,
+                                          0,
+                                          QLatin1String("Property"));
+
+        _stateStack.pushObject(obj);
+
+        defineProperty(QLatin1String("name"), node->identifierToken.startLine, name);
+        if (node->expression) // default value
+            defineProperty(QLatin1String("value"), node->identifierToken.startLine, getPrimitive("value", node->expression));
+
+        _stateStack.pop(); // object
+        _stateStack.pop(); // properties
+
+    } else if (memberType == QLatin1String("signal")) {
+        _stateStack.pushProperty(QLatin1String("signals"), node->publicToken.startLine);
+
+        Object *obj = defineObjectBinding(node->identifierToken.startLine,
+                                          0,
+                                          QLatin1String("Signal"));
+
+        _stateStack.pushObject(obj);
+
+        defineProperty(QLatin1String("name"), node->identifierToken.startLine, name);
+
+        _stateStack.pop(); // object
+        _stateStack.pop(); // signals
+    } else {
+        qWarning() << "bad public identifier" << memberType; // ### FIXME
+    }
+
+
+    // ### TODO drop initializer (unless some example needs differnet properties than name and type and value.
+
+    return false;
+}
+
+
+// UiObjectMember: T_IDENTIFIER UiObjectInitializer ;
+bool ProcessAST::visit(AST::UiObjectDefinition *node)
+{
+
+    defineObjectBinding(node->identifierToken.startLine,
+                        0,
+                        node->name->asString(),
+                        node->initializer);
+
+    return false;
+}
+
+
+// UiObjectMember: UiQualifiedId T_COLON T_IDENTIFIER UiObjectInitializer ;
+bool ProcessAST::visit(AST::UiObjectBinding *node)
+{
+    defineObjectBinding(node->identifierToken.startLine,
+                        node->qualifiedId,
+                        node->name->asString(),
+                        node->initializer);
+
+    return false;
+}
+
+QString ProcessAST::getPrimitive(const QByteArray &propertyName, AST::ExpressionNode *expr)
+{
+    QString primitive;
+
+    if (isSignalProperty(propertyName)) {
+        primitive = asString(expr);
+    } else if (propertyName == "id" && expr && expr->kind == AST::Node::Kind_IdentifierExpression) {
+        primitive = asString(expr);
+    } else if (AST::StringLiteral *lit = AST::cast<AST::StringLiteral *>(expr)) {
+        // hack: emulate weird XML feature that string literals are not quoted.
+        //This needs to be fixed in the qmlcompiler once xml goes away.
+        primitive = lit->value->asString();
+    } else if (expr->kind == AST::Node::Kind_TrueLiteral
+               || expr->kind == AST::Node::Kind_FalseLiteral
+               || expr->kind == AST::Node::Kind_NumericLiteral
+               ) {
+        primitive = asString(expr);
+    } else {
+        // create a binding
+        primitive += QLatin1Char('{');
+        primitive += asString(expr);
+        primitive += QLatin1Char('}');
+    }
+    return primitive;
+}
+
+
+// UiObjectMember: UiQualifiedId T_COLON Statement ;
+bool ProcessAST::visit(AST::UiScriptBinding *node)
+{
+    int propertyCount = 0;
+    AST::UiQualifiedId *propertyName = node->qualifiedId;
+    for (; propertyName; propertyName = propertyName->next){
+        ++propertyCount;
+        _stateStack.pushProperty(propertyName->name->asString(), propertyName->identifierToken.startLine);
+    }
+
+    Property *prop = currentProperty();
+    QString primitive;
+
+    if (AST::ExpressionStatement *stmt = AST::cast<AST::ExpressionStatement *>(node->statement)) {
+        primitive = getPrimitive(prop->name, stmt->expression);
+    } else if (isSignalProperty(prop->name)) {
+        if (AST::Block *block = AST::cast<AST::Block *>(node->statement)) {
+            const int start = block->lbraceToken.offset + block->rbraceToken.length;
+            primitive += _contents.mid(start, block->rbraceToken.offset - start);
+        } else {
+            primitive += asString(node->statement);
+        }
+    } else { // do binding
+        primitive += QLatin1Char('{');
+        primitive += asString(node->statement);
+        primitive += QLatin1Char('}');
+    }
+
+    Value *v = new Value;
+    v->primitive = primitive;
+    v->line = node->colonToken.startLine;
+    prop->addValue(v);
+
+    while (propertyCount--)
+        _stateStack.pop();
+
+    return true;
+}
+
+// UiObjectMember: UiQualifiedId T_COLON T_LBRACKET UiObjectMemberList T_RBRACKET ;
+bool ProcessAST::visit(AST::UiArrayBinding *node)
+{
+    int propertyCount = 0;
+    AST::UiQualifiedId *propertyName = node->qualifiedId;
+    for (; propertyName; propertyName = propertyName->next){
+        ++propertyCount;
+        _stateStack.pushProperty(propertyName->name->asString(), propertyName->identifierToken.startLine);
+    }
+
+    accept(node->members);
+
+    while (propertyCount--)
+        _stateStack.pop();
+
+    return false;
+}
+
+bool ProcessAST::visit(AST::UiSourceElement *node)
+{
+    QmlParser::Object *obj = currentObject();
+    if (! (obj && obj->typeName == "Script")) {
+        // ### warning
+        return false;
+    }
+
+    QString source;
+
+    int line = 0;
+    if (AST::FunctionDeclaration *funDecl = AST::cast<AST::FunctionDeclaration *>(node->sourceElement)) {
+        line = funDecl->functionToken.startLine;
+        source = asString(funDecl);
+    } else if (AST::VariableStatement *varStmt = AST::cast<AST::VariableStatement *>(node->sourceElement)) {
+        // ignore variable declarations
+        line = varStmt->declarationKindToken.startLine;
+    }
+
+    Value *value = new Value;
+    value->primitive = source;
+    value->line = line;
+
+    obj->getDefaultProperty()->addValue(value);
+
+    return false;
+}
+
+} // end of anonymous namespace
+
+
+QmlScriptParser::QmlScriptParser()
+    : root(0), _errorLine(-1)
+{
+
+}
+
+QmlScriptParser::~QmlScriptParser()
+{
+}
+
+bool QmlScriptParser::parse(const QByteArray &data, const QUrl &url)
+{
+    if (QmlComponentPrivate::isXml(data)) {
+        // parse using the XML parser.
+        QmlXmlParser xmlParser;
+        if (xmlParser.parse(data, url)) {
+            _nameSpacePaths = xmlParser.nameSpacePaths();
+            root = xmlParser.takeTree();
+            _typeNames = xmlParser.types();
+            return true;
+        }
+
+        _error = xmlParser.errorDescription();
+        _errorLine = 0; // ### FIXME
+        return false;
+    }
+
+    const QString fileName = url.toString();
+    const QString code = QString::fromUtf8(data); // ### FIXME
+
+    JavaScriptParser parser;
+    JavaScriptEnginePrivate driver;
+
+    NodePool nodePool(fileName, &driver);
+    driver.setNodePool(&nodePool);
+
+    Lexer lexer(&driver);
+    lexer.setCode(code, /*line = */ 1);
+    driver.setLexer(&lexer);
+
+    if (! parser.parse(&driver)) {
+        _error = parser.errorMessage();
+        _errorLine = parser.errorLineNumber();
+        return false;
+    }
+
+    ProcessAST process(this);
+    process(code, parser.ast());
+
+    return true;
+}
+
+QString QmlScriptParser::errorDescription() const
+{
+    return _error;
+}
+
+int QmlScriptParser::errorLine() const
+{
+    return _errorLine;
+}
+
+QMap<QString,QString> QmlScriptParser::nameSpacePaths() const
+{
+    return _nameSpacePaths;
+}
+
+QStringList QmlScriptParser::types() const
+{
+    return _typeNames;
+}
+
+Object *QmlScriptParser::tree() const
+{
+    return root;
+}
+
+void QmlScriptParser::clear()
+{
+    if (root) {
+        root->release();
+        root = 0;
+    }
+    _nameSpacePaths.clear();
+    _typeNames.clear();
+    _error.clear();
+    _scriptFile.clear();
+    _errorLine = 0;
+}
+
+int QmlScriptParser::findOrCreateTypeId(const QString &name)
+{
+    int index = _typeNames.indexOf(name);
+
+    if (index == -1) {
+        index = _typeNames.size();
+        _typeNames.append(name);
+    }
+
+    return index;
+}
+
+void QmlScriptParser::setTree(Object *tree)
+{
+    Q_ASSERT(! root);
+
+    root = tree;
+}
+
+void QmlScriptParser::addNamespacePath(const QString &path)
+{
+    _nameSpacePaths.insertMulti(QString(), path);
+}
+
+
+QT_END_NAMESPACE