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;; This file is part of eris-cl.
;; Copyright (C) 2022 Piotr Szarmański
;; eris-cl is free software: you can redistribute it and/or modify it under the
;; terms of the GNU Lesser General Public License as published by the Free
;; Software Foundation, either version 3 of the License, or (at your option) any
;; later versqion.
;; eris-cl 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 along with
;; eris-cl. If not, see <https://www.gnu.org/licenses/>.
(in-package :eris)
(define-constant +eris-revision+ "1.0"
:test #'equalp
:documentation
"String constant indicating the ERIS standard revision supported by this
implementation.")
(define-condition eris-condition () ())
(define-condition missing-block (eris-condition error)
((reference :initarg :reference :reader reference))
(:report (lambda (condition stream)
(format stream "Missing block: ~a" (reference condition)))))
(define-condition padding-error (eris-condition error)
()
(:report "Corrupted padding."))
(define-condition version-mismatch (eris-condition error)
()
(:report (lambda (condition stream)
(declare (ignore condition))
(format stream "Provided object has been encoded with a different version of the ERIS standard than ~a." +eris-revision+))))
(define-condition eof (eris-condition error)
((eof :initarg :eof :reader eof)
(pos :initarg :position :reader pos))
(:report (lambda (condition stream)
(with-slots (eof pos) condition
(format stream "End of file (~d) reached at ~d." eof pos)))))
(define-condition hash-mismatch (eris-condition error)
((reference :initarg :reference :reader reference)
(hash :initarg :hash :reader hash))
(:report (lambda (condition stream)
(format stream "The hash ~a does not match the reference ~a." (hash condition) (reference condition)))))
(define-condition invalid-internal-block (eris-condition error)
((reference :initarg :reference :reader reference))
(:report (lambda (condition stream)
(format stream "The internal block ~a is invalid." (reference condition)))))
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