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Fastest way to get ASTs for lots of related ITypeRoots? [message #1709692]

Wed, 30 September 2015 08:56

Eclipse User

Hi,

what is the most efficient way to get JDT to parse (with resolved bindings) a whole lot of (related) ITypeRoots, e.g., all ITypeRoots in an IPackageFragmentRoot. Currently, I am using SharedASTProvider.getAST(typeRoot, WAIT_YES, monitor) in a big loop, but that is rather slow. I suspect that JDT is doing lots of duplicate work under the hood, so I wonder whether a more efficient solution exists.

Any pointers would be greatly appreciated.

FWIW, I have a workbench running; the solution need not be restricted to API available in a headless environment.

Best wishes,

Andreas

Re: Fastest way to get ASTs for lots of related ITypeRoots? [message #1709747 is a reply to message #1709692]

Wed, 30 September 2015 12:55

Eclipse User

Hi Andreas,

I assume your type roots are in fact ICompilationUnits? If so, have you seen/tried org.eclipse.jdt.core.dom.ASTParser.createASTs(ICompilationUnit[], String[], ASTRequestor, IProgressMonitor) ?

Stephan

Re: Fastest way to get ASTs for lots of related ITypeRoots? [message #1709748 is a reply to message #1709747]

Wed, 30 September 2015 12:57

Eclipse User

No Message Body

Re: Fastest way to get ASTs for lots of related ITypeRoots? [message #1709750 is a reply to message #1709747]

Wed, 30 September 2015 12:59

Eclipse User

Stephan Herrmann wrote on Wed, 30 September 2015 12:55

Hi Andreas,

I assume your type roots are in fact ICompilationUnits? If so, have you seen/tried org.eclipse.jdt.core.dom.ASTParser.createASTs(ICompilationUnit[], String[], ASTRequestor, IProgressMonitor) ?

Yes, they are. Thanks for the pointer. I'll try this out.

Re: Fastest way to get ASTs for lots of related ITypeRoots? [message #1709826 is a reply to message #1709750]

Thu, 01 October 2015 07:57

Eclipse User

Follow-up question: What to do if the ITypeRoots I have are IClassFiles (with attached sources)? Is creating BasicCompilationUnits from the IClassFiles, like ASTParser.internalCreateAST does, the way to go?

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