File : exp_aggr.ads
1 ------------------------------------------------------------------------------
2 -- --
3 -- GNAT COMPILER COMPONENTS --
4 -- --
5 -- E X P _ A G G R --
6 -- --
7 -- S p e c --
8 -- --
9 -- Copyright (C) 1992-2016, Free Software Foundation, Inc. --
10 -- --
11 -- GNAT is free software; you can redistribute it and/or modify it under --
12 -- terms of the GNU General Public License as published by the Free Soft- --
13 -- ware Foundation; either version 3, or (at your option) any later ver- --
14 -- sion. GNAT is distributed in the hope that it will be useful, but WITH- --
15 -- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY --
16 -- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License --
17 -- for more details. You should have received a copy of the GNU General --
18 -- Public License distributed with GNAT; see file COPYING3. If not, go to --
19 -- http://www.gnu.org/licenses for a complete copy of the license. --
20 -- --
21 -- GNAT was originally developed by the GNAT team at New York University. --
22 -- Extensive contributions were provided by Ada Core Technologies Inc. --
23 -- --
24 ------------------------------------------------------------------------------
25
26 with Types; use Types;
27
28 package Exp_Aggr is
29
30 procedure Expand_N_Aggregate (N : Node_Id);
31 procedure Expand_N_Extension_Aggregate (N : Node_Id);
32
33 function Is_Delayed_Aggregate (N : Node_Id) return Boolean;
34 -- Returns True if N is an aggregate of some kind whose Expansion_Delayed
35 -- flag is set (see sinfo for meaning of flag).
36
37 procedure Convert_Aggr_In_Object_Decl (N : Node_Id);
38 -- N is a N_Object_Declaration with an expression which must be an
39 -- N_Aggregate or N_Extension_Aggregate with Expansion_Delayed.
40 -- This procedure performs in-place aggregate assignment.
41
42 procedure Convert_Aggr_In_Allocator
43 (Alloc : Node_Id;
44 Decl : Node_Id;
45 Aggr : Node_Id);
46 -- Alloc is the allocator whose expression is the aggregate Aggr.
47 -- Decl is an N_Object_Declaration created during allocator expansion.
48 -- This procedure performs in-place aggregate assignment into the
49 -- temporary declared in Decl, and the allocator becomes an access to
50 -- that temporary.
51
52 procedure Convert_Aggr_In_Assignment (N : Node_Id);
53 -- If the right-hand side of an assignment is an aggregate, expand the
54 -- statement into a series of individual component assignments. This is
55 -- done if there are non-static values involved in either the bounds or
56 -- the components, and the aggregate cannot be handled as a whole by the
57 -- backend.
58
59 function Static_Array_Aggregate (N : Node_Id) return Boolean;
60 -- N is an array aggregate that may have a component association with
61 -- an others clause and a range. If bounds are static and the expressions
62 -- are compile-time known constants, rewrite N as a purely positional
63 -- aggregate, to be use to initialize variables and components of the type
64 -- without generating elaboration code.
65
66 end Exp_Aggr;