10.1.5 Pragmas and Program Units
This subclause discusses pragmas related to program
units, library units, and compilation
Name Resolution Rules
are defined to be program unit pragmas
as the argument of a program unit pragma shall resolve to denote the
declarations or renamings of one or more program units that occur immediately
within the declarative region or compilation
in which the pragma
immediately occurs, or it shall resolve to denote the declaration of
the immediately enclosing program unit (if any); the pragma
applies to the denoted program unit(s). If there are no name
given as arguments, the pragma
applies to the immediately enclosing program unit.
A program unit pragma
shall appear in one of these places:
- Immediately within the visible part
of a program unit and before any nested declaration (but not within a
generic formal part), in which case the argument, if any, shall be a
that denotes the immediately enclosing program unit declaration.
program unit pragmas are defined to be library unit pragmas
, if any,
in a library unit pragma shall denote the declaration of a library unit.
A library unit pragma that applies to a generic
unit does not apply to its instances, unless a specific rule for the
pragma specifies the contrary.
An implementation may require that configuration
pragmas that select partition-wide or system-wide options be compiled
when the environment contains no library_item
other than those of the predefined environment. In this case, the implementation
shall still accept configuration pragmas in individual compilations that
confirm the initially selected partition-wide or system-wide options.
When applied to a generic unit, a program unit pragma
that is not a library unit pragma should apply to each instance of the
generic unit for which there is not an overriding pragma applied directly
to the instance.