ASIS Question: Looking up procedure names.

["Peter C. Chapin" <pchapin@sover.net>]

Hi! I'm writing an ASIS program and I've encountered a problem that I'm 
having trouble figuring out.

I have an element that I know is a procedure call statement. What I'm 
looking for is the full name of the procedure, including package 
membership. So for example

with Ada.Text_IO; use Ada.Text_IO;

procedure Hello is
begin
  Put_Line("Hello, World");
end Hello;

When looking at the Put_Line procedure call statement, I want to get the 
name "Ada.Text_IO.Put_Line." Is this possible?

Starting with the procedure call statement, I can use 
Corresponding_Called_Entity to get the procedure declaration. I can then 
use Names to get a list of defining names for that declaration (wouldn't 
there always be only one such name for procedure declarations?). I can 
then convert the first name on this list to program text using 
Defining_Name_Image. However, the name returned in this case is just 
'Put_Line' and not 'Ada.Text_IO.Put_Line' as desired.

I see in Asis.Declarations the function Defining_Prefix that takes 
A_Defining_Expanded_Name and returns the prefix. So that tells me what I 
need is a way to get A_Defining_Expanded_Name from my procedure call 
statement. This is where I'm stuck.

TIA

Peter