Patch for kdevelop-pg to persist the AST
treat at kde.org
Mon Aug 7 03:24:35 UTC 2006
Here is a patch that adds a new visitor to the parser which allows persistent
AST's. It is called 'serializer'. The visitor has two public static
functions: read and write. Everything else is made private.
Currently, testing with the csharp parser, it serializes an AST where the
source file was 44K to a 355K file. This is an uncompressed binary file.
When I compress it with gzip it goes down to 55K.
I think this exposes a bug in the C# grammar file too.
Line # 1089 of the grammar file has:
member variable declaration_type:
This variable differs with all the other variables and the generated
serializer needs to comment out this one.
Jakob, I haven't been able to find a dumptree or something similar in
kdevelop-pg that would allow me to test the serializer to see if I can get
the same output from an AST read from the disk as I would from a newly
created AST via the parser. How do you test? Is there a debug mode I should
One more thing... this is all STL and standard lib. I haven't used Qt.
Another thing, it does not persist the token stream. I guess we'll have to
do this too.
How goes the generated codemodel that uses the AST as a datastore? Does it
require a binding pass?
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