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main: experimental implementation of multi-pass parsing #2741

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main: experimental implementation of multi-pass parsing #2741

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Commits on Jul 6, 2021

  1. build-sys: link libreadtags to ctags 

    This change is preparation for adding features querying
existing tags files during parsing.

Signed-off-by: Masatake YAMATO <yamato@redhat.com>
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  2. main: rename tagFile type to tagSinkInfo to avoid conflicting the typ… 

    …e name defined in libreadtags

Signed-off-by: Masatake YAMATO <yamato@redhat.com>
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  3. main: enable TAG_{KIND,EXTRA,FIELD,ROLE}_DESCRIPTION pseudo tags 

    Signed-off-by: Masatake YAMATO <yamato@redhat.com>
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  4. main: add minimum API for reading an existing tags file from ctags 

    An option, --_hint-file=<tags-file> is also added.

Signed-off-by: Masatake YAMATO <yamato@redhat.com>
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  5. main: notify ptag descs that ptags are loaded from a hint file 

    Signed-off-by: Masatake YAMATO <yamato@redhat.com>
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  6. units.py,docs(web): add --_hint-file=hint.tags if hint.tags exists 

    Signed-off-by: Masatake YAMATO <yamato@redhat.com>
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  7. main: export getLanguageKindForName to parsers 

    Signed-off-by: Masatake YAMATO <yamato@redhat.com>
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  8. Python,refactor: make roles defined for "unknown" kind reusable 

    Signed-off-by: Masatake YAMATO <yamato@redhat.com>
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  9. Python: resolve real kinds for tags with unknown kinds when a hint fi… 

    …le is given

As the first pass, make a tags file with --fields=+{language}.
In the second pass, specified the tags file created in the first pass
with --_hint-file=<tags file>.

Signed-off-by: Masatake YAMATO <yamato@redhat.com>
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  10. main: export ePtagType to parsers 

    Signed-off-by: Masatake YAMATO <yamato@redhat.com>
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  11. main: notify parser that ptags are loaded from a hint file 

    Signed-off-by: Masatake YAMATO <yamato@redhat.com>
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  12. main: provide the way to know whether a field is available or not in … 

    …a hint file

Signed-off-by: Masatake YAMATO <yamato@redhat.com>
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  13. main: notify parser that regular tags are loaded from a hint file 

    Signed-off-by: Masatake YAMATO <yamato@redhat.com>
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  14. main: provide the way to know whether a kind is available or not in a… 

    … hint file

Signed-off-by: Masatake YAMATO <yamato@redhat.com>
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  15. main: provide the way to know whether an extra (xtag) is available or… 

    … not in a hint file

Signed-off-by: Masatake YAMATO <yamato@redhat.com>
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  16. main: provide the way to know whether a role is available or not in a… 

    … hint file

Signed-off-by: Masatake YAMATO <yamato@redhat.com>
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  17. Cxx: hint based macro expansions 

    Signed-off-by: Masatake YAMATO <yamato@redhat.com>
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  18. CPreProcessor: don't prepare per-input-file macro table if the client… 

    … language doesn't enable symtab

LDScript and Asm parsers use CPreProcessor parser code.
However, they don't turn on their symtabs because they are not ready for utilize
macro expanding feature. If CPreProcessor called symtab related functions, ctags crashed
because there was no symtab.

With this change, ctags can avoid the crash. CPreProcessor parser calls the symtab related
functions only when the client language enables its symtab.

TODO: TEST CASE IS NEEDED.
Signed-off-by: Masatake YAMATO <yamato@redhat.com>
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  19. CPreProcessor: use the negative cache table only when it is prepared

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