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-------------------------------------------------------------------------------
-- (C) Altran Praxis Limited
-------------------------------------------------------------------------------
--
-- The SPARK toolset is free software; you can redistribute it and/or modify it
-- under terms of the GNU General Public License as published by the Free
-- Software Foundation; either version 3, or (at your option) any later
-- version. The SPARK toolset is distributed in the hope that it will be
-- useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
-- Public License for more details. You should have received a copy of the GNU
-- General Public License distributed with the SPARK toolset; see file
-- COPYING3. If not, go to http://www.gnu.org/licenses for a complete copy of
-- the license.
--
--=============================================================================
with ExaminerConstants;
--# inherit ExaminerConstants;
package ContextManager is
type UnitTypes is (
MainProgram,
PackageSpecification, -- use this one when we have a package body and know we need spec
PackageBody,
SubUnit,
InterUnitPragma,
GenericSubprogramDeclaration, -- use this one when we have a generic body and know we need spec
GenericSubprogramBody,
InvalidUnit); -- this one is for inherited items where we don't know which it is
type UnitTypeSets is array (UnitTypes) of Boolean;
-- set of inheritable things (was previously only packages)
InheritableItem : constant UnitTypeSets :=
UnitTypeSets'(PackageSpecification => True,
GenericSubprogramDeclaration => True,
others => False);
PackageSpecificationSet : constant UnitTypeSets := UnitTypeSets'(PackageSpecification => True,
others => False);
-- this is for generic subprogram declarations, where we know that is what we want because we found a generic body
GenericDeclarationSet : constant UnitTypeSets := UnitTypeSets'(GenericSubprogramDeclaration => True,
others => False);
BodySet : constant UnitTypeSets := UnitTypeSets'(MainProgram | PackageBody => True,
others => False);
SubUnitSet : constant UnitTypeSets := UnitTypeSets'(SubUnit | PackageBody => True,
others => False);
type UnitDescriptors is private;
type FileDescriptors is private;
NullUnit : constant UnitDescriptors;
NullFile : constant FileDescriptors;
type UnitStatus is (
NoUnitEntry,
UnitCreated,
UnitParsed,
UnitDeferred,
UnitAnalysed,
NoIndexFile,
NotInIndexFile,
CannotOpenFile,
UnableToLocate);
subtype UnitNotFound is UnitStatus range NoIndexFile .. UnableToLocate;
type FileStatus is (NoFileEntry, FileCreated, FileOpen, FileEnd, UnableToOpen);
private
type UnitDescriptors is range 0 .. ExaminerConstants.ContextManagerMaxUnits;
--# assert UnitDescriptors'Base is Short_Integer; -- for GNAT
type FileDescriptors is range 0 .. ExaminerConstants.ContextManagerMaxFiles;
--# assert FileDescriptors'Base is Short_Integer; -- for GNAT
NullUnit : constant UnitDescriptors := 0;
NullFile : constant FileDescriptors := 0;
end ContextManager;
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