[cfe-commits] Opening Parser internals for 3rd parties

[Axel Naumann]

Hi,

To implement (performant) string based lookup functionality we'd like to
call some Parser functions that are currently inaccessible. Attached
patch is one solution; we'd place the calls through a class deriving
from Parser. Making some key parsing functions (the ones we use :-)
public is another option.

Rationale: the public Parser interfaces do string -> AST node
operations; we do not want to create AST nodes nor do we even have valid
C++ code, think lookup("int") where "int" is not a valid C++ declaration
that the public Parser interfaces expect.

Cheers, Axel.
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