Review Request 114628: Improves declarator parsing.

[Paweł Nowak]

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https://git.reviewboard.kde.org/r/114628/
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Review request for KDevelop.


Bugs: 280244
    http://bugs.kde.org/show_bug.cgi?id=280244


Repository: kdevelop


Description
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This patch fixes incorrect parsing of declarations like "int (func)(int);" - where the declarator id is inside parentheses but it is not a function pointer, as well as some more issues. I have attached a file comparing old and new parsing results. It shouldn't affect anything that was already parsed successfully.
Additionally it eliminates some code duplication: now both parseDeclarator and parseAbstractDeclarator call parseDeclaratorInternal.

However, still a lot of old problems remain: 
 -function pointers are displayed as functions
 -grouping in declarations like "int *(test[3])" is dropped so it becomes "int *test[3]"
 -function types as template parameters are not handled correctly - "std::function<void(int)>" becomes "std::function<void>" somewhere in builders
and fixing them doesn't look that easy.

This is my first contribution to kdevelop and I hope I haven't broken anything :)


Diffs
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  languages/cpp/cppduchain/contextbuilder.cpp 668aed1 
  languages/cpp/cppduchain/declarationbuilder.cpp b264858 
  languages/cpp/cppduchain/expressionvisitor.cpp d62f3e2 
  languages/cpp/parser/ast.h db20d74 
  languages/cpp/parser/codegenerator.cpp 2bc5f8e 
  languages/cpp/parser/default_visitor.cpp 9b43ae0 
  languages/cpp/parser/parser.h 933e2c8 
  languages/cpp/parser/parser.cpp c59bd78 

Diff: https://git.reviewboard.kde.org/r/114628/diff/


Testing
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Current git head is pretty broken so I tested using commit 4ac7ec339a29ee419f08d9ff29ce544e8a710c7c.
All tests pass (except for qtprinters, what is unrelated to this patch).


File Attachments
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Comparison between old and new declarator parsing
  https://git.reviewboard.kde.org/media/uploaded/files/2013/12/22/6eceb9a7-458d-42b1-ae42-4f7368ecdc74__test2.cpp


Thanks,

Paweł Nowak

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