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Diffstat (limited to 'gcc/ada/libgnat/a-assert.ads')
| -rw-r--r-- | gcc/ada/libgnat/a-assert.ads | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/gcc/ada/libgnat/a-assert.ads b/gcc/ada/libgnat/a-assert.ads new file mode 100644 index 0000000..caa5aa0 --- /dev/null +++ b/gcc/ada/libgnat/a-assert.ads @@ -0,0 +1,66 @@ +------------------------------------------------------------------------------ +-- -- +-- GNAT RUN-TIME COMPONENTS -- +-- -- +-- A D A . A S S E R T I O N S -- +-- -- +-- Copyright (C) 2015-2017, Free Software Foundation, Inc. -- +-- -- +-- S p e c -- +-- -- +-- This specification is derived from the Ada Reference Manual for use with -- +-- GNAT. The copyright notice above, and the license provisions that follow -- +-- apply solely to the contracts that have been added. -- +-- -- +-- GNAT is free software; you can redistribute it and/or modify it under -- +-- terms of the GNU General Public License as published by the Free Soft- -- +-- ware Foundation; either version 3, or (at your option) any later ver- -- +-- sion. GNAT is distributed in the hope that it will be useful, but WITH- -- +-- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY -- +-- or FITNESS FOR A PARTICULAR PURPOSE. -- +-- -- +-- As a special exception under Section 7 of GPL version 3, you are granted -- +-- additional permissions described in the GCC Runtime Library Exception, -- +-- version 3.1, as published by the Free Software Foundation. -- +-- -- +-- You should have received a copy of the GNU General Public License and -- +-- a copy of the GCC Runtime Library Exception along with this program; -- +-- see the files COPYING3 and COPYING.RUNTIME respectively. If not, see -- +-- <http://www.gnu.org/licenses/>. -- +-- -- +-- GNAT was originally developed by the GNAT team at New York University. -- +-- Extensive contributions were provided by Ada Core Technologies Inc. -- +-- -- +------------------------------------------------------------------------------ + +-- Preconditions in this unit are meant for analysis only, not for run-time +-- checking, so that the expected exceptions are raised when calling Assert. +-- This is enforced by setting the corresponding assertion policy to Ignore. + +pragma Assertion_Policy (Pre => Ignore); + +-- We do a with of System.Assertions to get hold of the exception (following +-- the specific RM permission that lets' Assertion_Error being a renaming). +-- The suppression of Warnings stops the warning about bad categorization. + +pragma Warnings (Off); +with System.Assertions; +pragma Warnings (On); + +package Ada.Assertions with + SPARK_Mode +is + pragma Pure (Assertions); + + Assertion_Error : exception renames System.Assertions.Assert_Failure; + -- This is the renaming that is allowed by 11.4.2(24). Note that the + -- Exception_Name will refer to the one in System.Assertions (see + -- AARM-11.4.1(12.b)). + + procedure Assert (Check : Boolean) with + Pre => Check; + + procedure Assert (Check : Boolean; Message : String) with + Pre => Check; + +end Ada.Assertions; |