519 lines
16 KiB
Ada
519 lines
16 KiB
Ada
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------------------------------------------------------------------------------
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-- --
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-- GNAT LIBRARY COMPONENTS --
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-- --
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-- A D A . C O N T A I N E R S . V E C T O R S --
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-- --
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-- S p e c --
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-- --
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-- Copyright (C) 2004-2015, Free Software Foundation, Inc. --
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-- --
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-- This specification is derived from the Ada Reference Manual for use with --
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-- GNAT. The copyright notice above, and the license provisions that follow --
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-- apply solely to the contents of the part following the private keyword. --
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-- --
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-- GNAT is free software; you can redistribute it and/or modify it under --
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-- terms of the GNU General Public License as published by the Free Soft- --
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-- ware Foundation; either version 3, or (at your option) any later ver- --
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-- sion. GNAT is distributed in the hope that it will be useful, but WITH- --
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-- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY --
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-- or FITNESS FOR A PARTICULAR PURPOSE. --
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-- --
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-- As a special exception under Section 7 of GPL version 3, you are granted --
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-- additional permissions described in the GCC Runtime Library Exception, --
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-- version 3.1, as published by the Free Software Foundation. --
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-- --
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-- You should have received a copy of the GNU General Public License and --
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-- a copy of the GCC Runtime Library Exception along with this program; --
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-- see the files COPYING3 and COPYING.RUNTIME respectively. If not, see --
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-- <http://www.gnu.org/licenses/>. --
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-- --
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-- This unit was originally developed by Matthew J Heaney. --
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------------------------------------------------------------------------------
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with Ada.Iterator_Interfaces;
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with Ada.Containers.Helpers;
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private with Ada.Finalization;
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private with Ada.Streams;
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generic
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type Index_Type is range <>;
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type Element_Type is private;
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with function "=" (Left, Right : Element_Type) return Boolean is <>;
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package Ada.Containers.Vectors is
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pragma Annotate (CodePeer, Skip_Analysis);
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pragma Preelaborate;
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pragma Remote_Types;
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subtype Extended_Index is Index_Type'Base
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range Index_Type'First - 1 ..
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Index_Type'Min (Index_Type'Base'Last - 1, Index_Type'Last) + 1;
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No_Index : constant Extended_Index := Extended_Index'First;
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type Vector is tagged private
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with
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Constant_Indexing => Constant_Reference,
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Variable_Indexing => Reference,
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Default_Iterator => Iterate,
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Iterator_Element => Element_Type;
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pragma Preelaborable_Initialization (Vector);
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type Cursor is private;
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pragma Preelaborable_Initialization (Cursor);
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No_Element : constant Cursor;
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function Has_Element (Position : Cursor) return Boolean;
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package Vector_Iterator_Interfaces is new
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Ada.Iterator_Interfaces (Cursor, Has_Element);
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Empty_Vector : constant Vector;
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overriding function "=" (Left, Right : Vector) return Boolean;
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function To_Vector (Length : Count_Type) return Vector;
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function To_Vector
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(New_Item : Element_Type;
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Length : Count_Type) return Vector;
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function "&" (Left, Right : Vector) return Vector;
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function "&" (Left : Vector; Right : Element_Type) return Vector;
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function "&" (Left : Element_Type; Right : Vector) return Vector;
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function "&" (Left, Right : Element_Type) return Vector;
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function Capacity (Container : Vector) return Count_Type;
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procedure Reserve_Capacity
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(Container : in out Vector;
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Capacity : Count_Type);
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function Length (Container : Vector) return Count_Type;
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procedure Set_Length
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(Container : in out Vector;
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Length : Count_Type);
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function Is_Empty (Container : Vector) return Boolean;
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procedure Clear (Container : in out Vector);
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function To_Cursor
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(Container : Vector;
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Index : Extended_Index) return Cursor;
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function To_Index (Position : Cursor) return Extended_Index;
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function Element
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(Container : Vector;
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Index : Index_Type) return Element_Type;
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function Element (Position : Cursor) return Element_Type;
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procedure Replace_Element
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(Container : in out Vector;
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Index : Index_Type;
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New_Item : Element_Type);
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procedure Replace_Element
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(Container : in out Vector;
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Position : Cursor;
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New_Item : Element_Type);
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procedure Query_Element
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(Container : Vector;
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Index : Index_Type;
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Process : not null access procedure (Element : Element_Type));
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procedure Query_Element
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(Position : Cursor;
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Process : not null access procedure (Element : Element_Type));
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procedure Update_Element
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(Container : in out Vector;
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Index : Index_Type;
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Process : not null access procedure (Element : in out Element_Type));
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procedure Update_Element
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(Container : in out Vector;
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Position : Cursor;
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Process : not null access procedure (Element : in out Element_Type));
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type Constant_Reference_Type
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(Element : not null access constant Element_Type) is
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private
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with
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Implicit_Dereference => Element;
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type Reference_Type (Element : not null access Element_Type) is private
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with
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Implicit_Dereference => Element;
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function Constant_Reference
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(Container : aliased Vector;
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Position : Cursor) return Constant_Reference_Type;
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pragma Inline (Constant_Reference);
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function Reference
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(Container : aliased in out Vector;
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Position : Cursor) return Reference_Type;
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pragma Inline (Reference);
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function Constant_Reference
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(Container : aliased Vector;
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Index : Index_Type) return Constant_Reference_Type;
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pragma Inline (Constant_Reference);
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function Reference
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(Container : aliased in out Vector;
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Index : Index_Type) return Reference_Type;
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pragma Inline (Reference);
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procedure Assign (Target : in out Vector; Source : Vector);
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function Copy (Source : Vector; Capacity : Count_Type := 0) return Vector;
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procedure Move (Target : in out Vector; Source : in out Vector);
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procedure Insert
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(Container : in out Vector;
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Before : Extended_Index;
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New_Item : Vector);
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procedure Insert
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(Container : in out Vector;
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Before : Cursor;
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New_Item : Vector);
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procedure Insert
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(Container : in out Vector;
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Before : Cursor;
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New_Item : Vector;
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Position : out Cursor);
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procedure Insert
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(Container : in out Vector;
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Before : Extended_Index;
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New_Item : Element_Type;
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Count : Count_Type := 1);
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procedure Insert
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(Container : in out Vector;
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Before : Cursor;
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New_Item : Element_Type;
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Count : Count_Type := 1);
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procedure Insert
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(Container : in out Vector;
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Before : Cursor;
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New_Item : Element_Type;
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Position : out Cursor;
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Count : Count_Type := 1);
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procedure Insert
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(Container : in out Vector;
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Before : Extended_Index;
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Count : Count_Type := 1);
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procedure Insert
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(Container : in out Vector;
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Before : Cursor;
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Position : out Cursor;
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Count : Count_Type := 1);
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procedure Prepend
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(Container : in out Vector;
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New_Item : Vector);
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procedure Prepend
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(Container : in out Vector;
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New_Item : Element_Type;
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Count : Count_Type := 1);
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procedure Append
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(Container : in out Vector;
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New_Item : Vector);
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procedure Append
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(Container : in out Vector;
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New_Item : Element_Type;
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Count : Count_Type := 1);
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procedure Insert_Space
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(Container : in out Vector;
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Before : Extended_Index;
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Count : Count_Type := 1);
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procedure Insert_Space
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(Container : in out Vector;
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Before : Cursor;
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Position : out Cursor;
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Count : Count_Type := 1);
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procedure Delete
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(Container : in out Vector;
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Index : Extended_Index;
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Count : Count_Type := 1);
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procedure Delete
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(Container : in out Vector;
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Position : in out Cursor;
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Count : Count_Type := 1);
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procedure Delete_First
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(Container : in out Vector;
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Count : Count_Type := 1);
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procedure Delete_Last
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(Container : in out Vector;
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Count : Count_Type := 1);
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procedure Reverse_Elements (Container : in out Vector);
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procedure Swap (Container : in out Vector; I, J : Index_Type);
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procedure Swap (Container : in out Vector; I, J : Cursor);
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function First_Index (Container : Vector) return Index_Type;
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function First (Container : Vector) return Cursor;
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function First_Element (Container : Vector) return Element_Type;
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function Last_Index (Container : Vector) return Extended_Index;
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function Last (Container : Vector) return Cursor;
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function Last_Element (Container : Vector) return Element_Type;
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function Next (Position : Cursor) return Cursor;
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procedure Next (Position : in out Cursor);
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function Previous (Position : Cursor) return Cursor;
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procedure Previous (Position : in out Cursor);
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function Find_Index
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(Container : Vector;
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Item : Element_Type;
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Index : Index_Type := Index_Type'First) return Extended_Index;
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function Find
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(Container : Vector;
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Item : Element_Type;
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Position : Cursor := No_Element) return Cursor;
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function Reverse_Find_Index
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(Container : Vector;
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Item : Element_Type;
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Index : Index_Type := Index_Type'Last) return Extended_Index;
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function Reverse_Find
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(Container : Vector;
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Item : Element_Type;
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Position : Cursor := No_Element) return Cursor;
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function Contains
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(Container : Vector;
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Item : Element_Type) return Boolean;
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procedure Iterate
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(Container : Vector;
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Process : not null access procedure (Position : Cursor));
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procedure Reverse_Iterate
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(Container : Vector;
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Process : not null access procedure (Position : Cursor));
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function Iterate (Container : Vector)
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return Vector_Iterator_Interfaces.Reversible_Iterator'Class;
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function Iterate (Container : Vector; Start : Cursor)
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return Vector_Iterator_Interfaces.Reversible_Iterator'Class;
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generic
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with function "<" (Left, Right : Element_Type) return Boolean is <>;
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package Generic_Sorting is
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function Is_Sorted (Container : Vector) return Boolean;
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procedure Sort (Container : in out Vector);
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procedure Merge (Target : in out Vector; Source : in out Vector);
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end Generic_Sorting;
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private
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pragma Inline (Append);
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pragma Inline (First_Index);
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pragma Inline (Last_Index);
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pragma Inline (Element);
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pragma Inline (First_Element);
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pragma Inline (Last_Element);
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pragma Inline (Query_Element);
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pragma Inline (Update_Element);
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pragma Inline (Replace_Element);
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pragma Inline (Is_Empty);
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pragma Inline (Contains);
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pragma Inline (Next);
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pragma Inline (Previous);
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use Ada.Containers.Helpers;
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package Implementation is new Generic_Implementation;
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use Implementation;
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type Elements_Array is array (Index_Type range <>) of aliased Element_Type;
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function "=" (L, R : Elements_Array) return Boolean is abstract;
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type Elements_Type (Last : Extended_Index) is limited record
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EA : Elements_Array (Index_Type'First .. Last);
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end record;
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type Elements_Access is access all Elements_Type;
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use Finalization;
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use Streams;
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type Vector is new Controlled with record
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Elements : Elements_Access := null;
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Last : Extended_Index := No_Index;
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TC : aliased Tamper_Counts;
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end record;
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overriding procedure Adjust (Container : in out Vector);
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overriding procedure Finalize (Container : in out Vector);
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procedure Write
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(Stream : not null access Root_Stream_Type'Class;
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Container : Vector);
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for Vector'Write use Write;
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procedure Read
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(Stream : not null access Root_Stream_Type'Class;
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Container : out Vector);
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for Vector'Read use Read;
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type Vector_Access is access all Vector;
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for Vector_Access'Storage_Size use 0;
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type Cursor is record
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Container : Vector_Access;
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Index : Index_Type := Index_Type'First;
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end record;
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procedure Read
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(Stream : not null access Root_Stream_Type'Class;
|
||
|
|
Position : out Cursor);
|
||
|
|
|
||
|
|
for Cursor'Read use Read;
|
||
|
|
|
||
|
|
procedure Write
|
||
|
|
(Stream : not null access Root_Stream_Type'Class;
|
||
|
|
Position : Cursor);
|
||
|
|
|
||
|
|
for Cursor'Write use Write;
|
||
|
|
|
||
|
|
subtype Reference_Control_Type is Implementation.Reference_Control_Type;
|
||
|
|
-- It is necessary to rename this here, so that the compiler can find it
|
||
|
|
|
||
|
|
type Constant_Reference_Type
|
||
|
|
(Element : not null access constant Element_Type) is
|
||
|
|
record
|
||
|
|
Control : Reference_Control_Type :=
|
||
|
|
raise Program_Error with "uninitialized reference";
|
||
|
|
-- The RM says, "The default initialization of an object of
|
||
|
|
-- type Constant_Reference_Type or Reference_Type propagates
|
||
|
|
-- Program_Error."
|
||
|
|
end record;
|
||
|
|
|
||
|
|
procedure Write
|
||
|
|
(Stream : not null access Root_Stream_Type'Class;
|
||
|
|
Item : Constant_Reference_Type);
|
||
|
|
|
||
|
|
for Constant_Reference_Type'Write use Write;
|
||
|
|
|
||
|
|
procedure Read
|
||
|
|
(Stream : not null access Root_Stream_Type'Class;
|
||
|
|
Item : out Constant_Reference_Type);
|
||
|
|
|
||
|
|
for Constant_Reference_Type'Read use Read;
|
||
|
|
|
||
|
|
type Reference_Type
|
||
|
|
(Element : not null access Element_Type) is
|
||
|
|
record
|
||
|
|
Control : Reference_Control_Type :=
|
||
|
|
raise Program_Error with "uninitialized reference";
|
||
|
|
-- The RM says, "The default initialization of an object of
|
||
|
|
-- type Constant_Reference_Type or Reference_Type propagates
|
||
|
|
-- Program_Error."
|
||
|
|
end record;
|
||
|
|
|
||
|
|
procedure Write
|
||
|
|
(Stream : not null access Root_Stream_Type'Class;
|
||
|
|
Item : Reference_Type);
|
||
|
|
|
||
|
|
for Reference_Type'Write use Write;
|
||
|
|
|
||
|
|
procedure Read
|
||
|
|
(Stream : not null access Root_Stream_Type'Class;
|
||
|
|
Item : out Reference_Type);
|
||
|
|
|
||
|
|
for Reference_Type'Read use Read;
|
||
|
|
|
||
|
|
-- Three operations are used to optimize in the expansion of "for ... of"
|
||
|
|
-- loops: the Next(Cursor) procedure in the visible part, and the following
|
||
|
|
-- Pseudo_Reference and Get_Element_Access functions. See Exp_Ch5 for
|
||
|
|
-- details.
|
||
|
|
|
||
|
|
function Pseudo_Reference
|
||
|
|
(Container : aliased Vector'Class) return Reference_Control_Type;
|
||
|
|
pragma Inline (Pseudo_Reference);
|
||
|
|
-- Creates an object of type Reference_Control_Type pointing to the
|
||
|
|
-- container, and increments the Lock. Finalization of this object will
|
||
|
|
-- decrement the Lock.
|
||
|
|
|
||
|
|
type Element_Access is access all Element_Type;
|
||
|
|
|
||
|
|
function Get_Element_Access
|
||
|
|
(Position : Cursor) return not null Element_Access;
|
||
|
|
-- Returns a pointer to the element designated by Position.
|
||
|
|
|
||
|
|
No_Element : constant Cursor := Cursor'(null, Index_Type'First);
|
||
|
|
|
||
|
|
Empty_Vector : constant Vector := (Controlled with others => <>);
|
||
|
|
|
||
|
|
type Iterator is new Limited_Controlled and
|
||
|
|
Vector_Iterator_Interfaces.Reversible_Iterator with
|
||
|
|
record
|
||
|
|
Container : Vector_Access;
|
||
|
|
Index : Index_Type'Base;
|
||
|
|
end record
|
||
|
|
with Disable_Controlled => not T_Check;
|
||
|
|
|
||
|
|
overriding procedure Finalize (Object : in out Iterator);
|
||
|
|
|
||
|
|
overriding function First (Object : Iterator) return Cursor;
|
||
|
|
overriding function Last (Object : Iterator) return Cursor;
|
||
|
|
|
||
|
|
overriding function Next
|
||
|
|
(Object : Iterator;
|
||
|
|
Position : Cursor) return Cursor;
|
||
|
|
|
||
|
|
overriding function Previous
|
||
|
|
(Object : Iterator;
|
||
|
|
Position : Cursor) return Cursor;
|
||
|
|
|
||
|
|
end Ada.Containers.Vectors;
|