* [Ada] Ada 2022: Class-wide types and formal abstract subprograms
@ 2021-10-25 15:08 Pierre-Marie de Rodat
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From: Pierre-Marie de Rodat @ 2021-10-25 15:08 UTC (permalink / raw)
To: gcc-patches; +Cc: Javier Miranda
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Ada 2022 specifies that when the controlling type of a formal abstract
subprogram declaration is a formal type, and the actual type is a
class-wide type T'Class, the actual subprogram can be an implicitly
declared subprogram corresponding to a primitive operation of type T
(AI12-0165-1/05).
Tested on x86_64-pc-linux-gnu, committed on trunk
gcc/ada/
* sem_ch8.adb (Build_Class_Wide_Wrapper): Previous version split
in two subprograms to factorize its functionality:
Find_Suitable_Candidate, and Build_Class_Wide_Wrapper. These
routines are also placed in the new subprogram
Handle_Instance_With_Class_Wide_Type.
(Handle_Instance_With_Class_Wide_Type): New subprogram that
encapsulates all the code that handles instantiations with
class-wide types.
(Analyze_Subprogram_Renaming): Adjust code to invoke the new
nested subprogram Handle_Instance_With_Class_Wide_Type; adjust
documentation.
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