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Try to get the type of the qualified name id under cursor

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This commit is contained in:
Roberto Raggi
2010-01-22 10:26:25 +01:00
parent 4b97bf170a
commit ba3e68fcbb
3 changed files with 136 additions and 76 deletions
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158
src/plugins/qmljseditor/qmlcodecompletion.cpp
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@@ -50,6 +50,7 @@
using namespace QmlJSEditor;
using namespace QmlJSEditor::Internal;
using namespace QmlJS;
// Temporary workaround until we have proper icons for QML completion items
@@ -83,6 +84,7 @@ static QIcon iconForColor(const QColor &color)
return pix;
}
namespace {
class Evaluate: public QmlJS::AST::Visitor
{
@@ -181,6 +183,46 @@ protected:
};
class EnumerateProperties
{
QSet<const Interpreter::ObjectValue *> _processed;
QHash<QString, const Interpreter::Value *> _properties;
public:
QHash<QString, const Interpreter::Value *> operator()(const Interpreter::Value *value)
{
_processed.clear();
_properties.clear();
enumerateProperties(value);
return _properties;
}
private:
void enumerateProperties(const Interpreter::Value *value)
{
if (! value)
return;
else if (const Interpreter::ObjectValue *object = value->asObjectValue()) {
enumerateProperties(object);
}
}
void enumerateProperties(const Interpreter::ObjectValue *object)
{
if (! object || _processed.contains(object))
return;
_processed.insert(object);
enumerateProperties(object->prototype());
for (Interpreter::ObjectValue::MemberIterator it = object->firstMember(); it != object->lastMember(); ++it) {
_properties.insert(it.key(), it.value());
}
}
};
} // end of anonymous namespace
QmlCodeCompletion::QmlCodeCompletion(QmlModelManagerInterface *modelManager, QmlJS::TypeSystem *typeSystem, QObject *parent)
: TextEditor::ICompletionCollector(parent),
m_modelManager(modelManager),
@@ -248,32 +290,33 @@ int QmlCodeCompletion::startCompletion(TextEditor::ITextEditable *editor)
const QIcon typeIcon = iconForColor(Qt::yellow);
foreach (QmlJS::Document::Ptr doc, snapshot) {
const QFileInfo fileInfo(doc->fileName());
if (fileInfo.suffix() != QLatin1String("qml"))
continue;
else if (fileInfo.absolutePath() != currentFilePath) // ### FIXME includ `imported' components
continue;
const QString typeName = fileInfo.baseName();
if (typeName.isEmpty())
continue;
if (typeName.at(0).isUpper()) {
TextEditor::CompletionItem item(this);
item.text = typeName;
item.icon = typeIcon;
m_completions.append(item);
}
}
QChar previousChar;
if (m_startPosition > 0)
previousChar = editor->characterAt(m_startPosition - 1);
if (previousChar.isSpace() || previousChar.isNull()) {
// ### FIXME
// Add the visible components to the completion box.
foreach (QmlJS::Document::Ptr doc, snapshot) {
const QFileInfo fileInfo(doc->fileName());
if (fileInfo.suffix() != QLatin1String("qml"))
continue;
else if (fileInfo.absolutePath() != currentFilePath) // ### FIXME includ `imported' components
continue;
const QString typeName = fileInfo.baseName();
if (typeName.isEmpty())
continue;
if (typeName.at(0).isUpper()) {
TextEditor::CompletionItem item(this);
item.text = typeName;
item.icon = typeIcon;
m_completions.append(item);
}
}
// Add the visible IDs to the completion box
const QIcon idIcon = iconForColor(Qt::darkGray);
QStringList ids = qmlDocument->ids().keys();
foreach (const QString &id, ids) {
@@ -287,54 +330,53 @@ int QmlCodeCompletion::startCompletion(TextEditor::ITextEditable *editor)
}
}
#if 0
// FIXME: this completion strategy is not going to work when the document was never parsed correctly.
if (qmlDocument->qmlProgram() != 0) {
const QIcon otherIcon = iconForColor(Qt::darkCyan);
if (previousChar == QLatin1Char('.')) {
const int endOfExpression = m_startPosition - 1;
int startOfExpression = endOfExpression - 2;
// qDebug() << "*** program:" << program;
QmlExpressionUnderCursor expressionUnderCursor;
QTextCursor cursor(edit->document());
cursor.setPosition(pos);
expressionUnderCursor(cursor, qmlDocument);
while (startOfExpression >= 0) {
const QChar ch = editor->characterAt(startOfExpression);
QmlLookupContext context(expressionUnderCursor.expressionScopes(), qmlDocument, m_modelManager->snapshot(), m_typeSystem);
QmlResolveExpression resolver(context);
QmlJS::AST::Node *expr = expressionUnderCursor.expressionNode();
QmlJS::Interpreter::Engine engine;
Evaluate evaluate(&engine);
if (const QmlJS::Interpreter::Value *value = evaluate(expr)) {
if (const QmlJS::Interpreter::ObjectValue *object = value->asObjectValue()) {
for (QmlJS::Interpreter::ObjectValue::MemberIterator it = object->firstMember(); it != object->lastMember(); ++it) {
TextEditor::CompletionItem item(this);
item.text = it.key();
item.icon = otherIcon;
m_completions.append(item);
}
return pos;
}
if (ch.isLetterOrNumber() || ch == QLatin1Char('_') || ch == QLatin1Char('.'))
--startOfExpression;
else
break;
}
++startOfExpression;
// qDebug()<<"*** expression under cursor:"<<expressionUnderCursor.expressionNode();
const QList<QmlJS::Symbol*> symbols = resolver.visibleSymbols(expressionUnderCursor.expressionNode());
// qDebug()<<"***"<<symbols.size()<<"visible symbols";
const QString expression = m_editor->textAt(startOfExpression, endOfExpression - startOfExpression);
//qDebug() << "expression:" << expression;
foreach (QmlJS::Symbol *symbol, symbols) {
if (symbol->isIdSymbol())
continue; // nothing to do here.
QmlJS::Document::Ptr exprDoc = QmlJS::Document::create(QLatin1String("<expression>"));
exprDoc->setSource(expression);
exprDoc->parseExpression();
if (exprDoc->ast()) {
Interpreter::Engine interp;
Evaluate evaluate(&interp);
const Interpreter::Value *value = interp.convertToObject(evaluate(exprDoc->ast()));
//qDebug() << "type:" << interp.typeId(value);
const QIcon symbolIcon = iconForColor(Qt::darkCyan);
EnumerateProperties enumerateProperties;
QHashIterator<QString, const Interpreter::Value *> it(enumerateProperties(value));
while (it.hasNext()) {
it.next();
const QString word = symbol->name();
if (! word.isEmpty()) {
TextEditor::CompletionItem item(this);
item.text = word;
item.icon = otherIcon;
item.text = it.key();
item.icon = symbolIcon;
m_completions.append(item);
}
}
if (! m_completions.isEmpty())
return m_startPosition;
return -1;
}
#endif
if (previousChar.isNull()
|| previousChar.isSpace()