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#| Copyright 2024 Peter McGoron
|
| Licensed under the Apache License, Version 2.0 (the "License");
| you may not use this file except in compliance with the License.
| You may obtain a copy of the License at
|
| http://www.apache.org/licenses/LICENSE-2.0
|
| Unless required by applicable law or agreed to in writing, software
| distributed under the License is distributed on an "AS IS" BASIS,
| WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
| See the License for the specific language governing permissions and
| limitations under the License.
|#
(define-record-type <iterator-exception>
(make-iterator-exception iterator type fields)
iterator-exception?
(iterator iterator-exception-iterator)
(type iterator-exception-type)
(fields iterator-exception-fields))
(define (not-implemented-exception iterator field)
(make-iterator-exception iterator
'not-implemented
(list (cons 'field field))))
(define (non-integer-movement-exception iterator spaces)
(make-iterator-exception iterator
'non-integer-movement
(list (cons 'spaces spaces))))
(define (negative-movement-exception iterator spaces)
(make-iterator-exception iterator
'negative-movement
(list (cons 'spaces spaces))))
(define (ref-at-end-exception iterator)
(make-iterator-exception iterator
'ref-at-end
'()))
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