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QmlJS: Fix crash when opening JS files.

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Now that Contexts are cached, it needs to be copyable. However, the
ScopeChain has a QmlComponentChain member that owns resources and didn't
have a correct copy constructor or copy assignment operator.

I've made QmlComponentChain non-copyable and store a shared pointer to
an instance instead, as it will generally not change for a given
context.

Reviewed-by: Lasse Holmstedt
This commit is contained in:
Christian Kamm
2010-08-27 09:37:01 +02:00
parent a14fa23cae
commit 1a9c69ddb0
3 changed files with 15 additions and 11 deletions
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8
src/libs/qmljs/qmljslink.cpp
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@@ -83,10 +83,10 @@ void Link::initializeScopeChain()
Bind *bind = _doc->bind();
QHash<Document *, ScopeChain::QmlComponentChain *> componentScopes;
scopeChain.qmlComponentScope = QSharedPointer<ScopeChain::QmlComponentChain>(new ScopeChain::QmlComponentChain());
if (_doc->qmlProgram()) {
scopeChain.qmlComponentScope.clear();
componentScopes.insert(_doc.data(), &scopeChain.qmlComponentScope);
makeComponentChain(_doc, &scopeChain.qmlComponentScope, &componentScopes);
componentScopes.insert(_doc.data(), scopeChain.qmlComponentScope.data());
makeComponentChain(_doc, scopeChain.qmlComponentScope.data(), &componentScopes);
if (const ObjectValue *typeEnvironment = _context->typeEnvironment(_doc.data()))
scopeChain.qmlTypes = typeEnvironment;
@@ -97,7 +97,7 @@ void Link::initializeScopeChain()
if (_doc->fileName() == fileImport.name) {
ScopeChain::QmlComponentChain *component = new ScopeChain::QmlComponentChain;
componentScopes.insert(otherDoc.data(), component);
scopeChain.qmlComponentScope.instantiatingComponents += component;
scopeChain.qmlComponentScope->instantiatingComponents += component;
makeComponentChain(otherDoc, component, &componentScopes);
}
}