forked from qt-creator/qt-creator
Fixed crash on updating function argument widget
Crashed for example in the case of template instantiation. To make sure the Function* stays valid, we need to not only keep around the Snapshot but the whole LookupContext. Done with Roberto Raggi.
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@@ -78,7 +78,7 @@ class FunctionArgumentWidget : public QLabel
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{
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public:
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FunctionArgumentWidget();
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void showFunctionHint(Function *functionSymbol, const Snapshot &snapshot);
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void showFunctionHint(Function *functionSymbol, const LookupContext &context);
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protected:
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bool eventFilter(QObject *obj, QEvent *e);
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@@ -95,7 +95,7 @@ private:
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QFrame *m_popupFrame;
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Function *m_item;
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Snapshot m_snapshot;
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LookupContext m_context;
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};
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class ConvertToCompletionItem: protected NameVisitor
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@@ -215,10 +215,10 @@ FunctionArgumentWidget::FunctionArgumentWidget()
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}
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void FunctionArgumentWidget::showFunctionHint(Function *functionSymbol,
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const Snapshot &snapshot)
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const LookupContext &context)
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{
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m_item = functionSymbol;
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m_snapshot = snapshot;
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m_context = context;
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m_startpos = m_editor->position();
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// update the text
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@@ -1041,7 +1041,7 @@ void CppCodeCompletion::complete(const TextEditor::CompletionItem &item)
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QTC_ASSERT(function, return);
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m_functionArgumentWidget = new FunctionArgumentWidget();
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m_functionArgumentWidget->showFunctionHint(function, typeOfExpression.snapshot());
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m_functionArgumentWidget->showFunctionHint(function, typeOfExpression.lookupContext());
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}
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} else if (m_completionOperator == T_SIGNAL || m_completionOperator == T_SLOT) {
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QString toInsert = item.m_text;
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