ccwl: Support nested arrays.

* ccwl/ccwl.scm (construct-type-syntax): Construct types recursively
to support nested arrays.
(key->output): Recursively convert stdout types to File types.
* ccwl/cwl.scm (type->cwl): New function.
(input->cwl-scm, output->cwl-scm): Use type->cwl.
* tests/ccwl.scm (make-array-type): New function.
(construct-type-syntax-wrapper): New syntax.
("construct-type-syntax on primitive types", "construct-type-syntax on
array types", "construct-type-syntax on nested array types"): New
tests.
* tests/cwl.scm, doc/array-types.scm, doc/nested-array-types.scm: New
files.
* doc/ccwl.skb (Cookbook)[Array types]: New section.

1 files changed, 44 insertions, 0 deletions

diff --git a/tests/cwl.scm b/tests/cwl.scm
new file mode 100644
index 0000000..ba619ab
--- /dev/null
+++ b/tests/cwl.scm
@@ -0,0 +1,44 @@
+;;; ccwl --- Concise Common Workflow Language
+;;; Copyright © 2023 Arun Isaac <arunisaac@systemreboot.net>
+;;;
+;;; This file is part of ccwl.
+;;;
+;;; ccwl is free software: you can redistribute it and/or modify it
+;;; under the terms of the GNU General Public License as published by
+;;; the Free Software Foundation, either version 3 of the License, or
+;;; (at your option) any later version.
+;;;
+;;; ccwl 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 ccwl.  If not, see <https://www.gnu.org/licenses/>.
+
+(use-modules (srfi srfi-64))
+
+(define type->cwl
+  (@@ (ccwl cwl) type->cwl))
+
+(define make-array-type
+  (@@ (ccwl ccwl) make-array-type))
+
+(test-begin "cwl")
+
+(test-equal "type->cwl on primitive types"
+  'File
+  (type->cwl 'File))
+
+(test-equal "type->cwl on array types"
+  '((type . array)
+    (items . File))
+  (type->cwl (make-array-type 'File)))
+
+(test-equal "type->cwl on nested array types"
+  '((type . array)
+    (items . ((type . array)
+              (items . File))))
+  (type->cwl (make-array-type (make-array-type 'File))))
+
+(test-end "cwl")