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QmlJS: Speed up Link significantly, provide more info on imports.

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Link now caches imports. That means importing the same library (say, Qt)
from more than one file no longer creates an importing namespace for
each one. Instead, a single one is created for the instance of Link.

To make this work, the type environment in ScopeChain has been given its
own type: Interpreter::TypeEnvironment. That has the added benefit of
being able to carry meta-information about imports. You can use
TypeEnvironment::importInfo(qmlComponentName) to get information about
the import node that caused the import of the component.
This commit is contained in:
Christian Kamm
2010-09-16 15:29:37 +02:00
parent 97c07292aa
commit c7b3e3c81c
11 changed files with 435 additions and 213 deletions
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17
src/libs/qmljs/qmljslink.h
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@@ -42,12 +42,14 @@
namespace QmlJS {
class NameId;
class LinkPrivate;
/*
Helper for building a context.
*/
class QMLJS_EXPORT Link
{
Q_DECLARE_PRIVATE(Link)
Q_DECLARE_TR_FUNCTIONS(QmlJS::Link)
public:
@@ -73,22 +75,15 @@ private:
void linkImports();
void initializeScopeChain();
void populateImportedTypes(Interpreter::ObjectValue *typeEnv, Document::Ptr doc);
void importFile(Interpreter::ObjectValue *typeEnv, Document::Ptr doc,
AST::UiImport *import);
void importNonFile(Interpreter::ObjectValue *typeEnv, Document::Ptr doc,
AST::UiImport *import);
void populateImportedTypes(Interpreter::TypeEnvironment *typeEnv, Document::Ptr doc);
Interpreter::ObjectValue *importFile(Document::Ptr doc, const Interpreter::ImportInfo &importInfo);
Interpreter::ObjectValue *importNonFile(Document::Ptr doc, const Interpreter::ImportInfo &importInfo);
void importObject(Bind *bind, const QString &name, Interpreter::ObjectValue *object, NameId *targetNamespace);
void error(const Document::Ptr &doc, const AST::SourceLocation &loc, const QString &message);
private:
Document::Ptr _doc;
Snapshot _snapshot;
Interpreter::Context *_context;
const QStringList _importPaths;
QList<DiagnosticMessage> _diagnosticMessages;
QScopedPointer<LinkPrivate> d_ptr;
};
} // namespace QmlJS