[cfe-dev] Adding more info to builtin source types.
zaffanella at cs.unipr.it
Mon Jan 11 13:06:54 PST 2010
Currently, class BuiltinTypeLoc provides a single source location,
accessible via member getNameLoc(), pointing to the name of the type
specifier type (e.g., for 'unsigned int' it would return the location of
'int'). It is quite common for coders to declare builtin integral types
using sign or width type specifiers only (e.g., 'unsigned', 'long',
'unsigned short', etc.). In these cases the getNameLoc() method would
return an invalid source location.
The attached patch augments BuiltinTypeLoc class by adding two source
locations, one for the sign specifier and the other for the width
specifier. We have added methods to get/set the three source locations.
We also modified method getNameLoc() so as to return what is _likely_ to
be the source location of the first type specifier token in the source
code, assuming that the three specifiers are provided in the "canonical"
<sign> <width> <type>
Please let us know if the patch is OK.
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