Rewrite cond-thunk to be in terms of cond, and rename tests for

chicken

2 files changed, 140 insertions, 0 deletions

diff --git a/tests/cas.scm b/tests/cas.scm
new file mode 100644
index 0000000..5d87632
--- /dev/null
+++ b/tests/cas.scm
@@ -0,0 +1,66 @@
+#| 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.
+ |#
+
+(cond-expand
+ (chicken (import test r7rs))
+ (else (import (srfi 64))))
+
+(load "../mcgoron.cond-thunk.srfi.210.compat.sld")
+(load "../mcgoron.cond-thunk.sld")
+(load "../mcgoron.cond-thunk.values.sld")
+(import (mcgoron cond-thunk) (mcgoron cond-thunk values) (srfi 1))
+
+(define function=> pair=>)
+
+(define (mult=> form)
+  (cond-values
+    (after ((let (function=> form) => (head tail))
+        (when (eq? head '*)))
+      tail)))
+
+(define (add=> form)
+  (cond-values
+    (after ((let (function=> form) => (head tail))
+        (when (eq? head '+)))
+      tail)))
+
+(define (add? form)
+  (cond-thunk
+    (after ((let (add=> form) => (_)))
+      #t)
+    (else #f)))
+
+(define (distribute form)
+  (cond-thunk
+    (after ((let (mult=> form) => (arguments)))
+      (let-values (((add others) (partition add? arguments)))
+        ;; ADD is a list of addition clauses.
+        (let ((added-values (concatenate (map cdr add))))
+          (cons '+
+                (map (lambda (added-value)
+                       (cons* '*
+                              (distribute added-value)
+                              others))
+                     added-values)))))
+    (after ((let (function=> form) => (head arguments)))
+      (cons head (map distribute arguments)))
+    (else form)))
+
+(test
+ "distribute1"
+ '(+ (* y x) (* z x))
+ (distribute '(* x (+ y z))))
+
diff --git a/tests/run.scm b/tests/run.scm
new file mode 100644
index 0000000..c98e76f
--- /dev/null
+++ b/tests/run.scm
@@ -0,0 +1,74 @@
+#| 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.
+ |#
+
+(cond-expand
+ (chicken (import test r7rs))
+ (else (import (srfi 64))))
+
+(load "../mcgoron.cond-thunk.sld")
+(import (mcgoron cond-thunk))
+
+(test-assert
+ "cond-thunk basic"
+ (cond-thunk
+   (if #t
+       (lambda ()
+         #t)
+       #f)
+   (else #f)))
+
+(test-assert
+ "when-ct true"
+ (cond-thunk
+   (when-ct #t #t)
+   (else #f)))
+
+(test
+ "cond-thunk multiple branches"
+ 'two
+ (cond-thunk
+   (when-ct (pair? #f) 'one)
+   (when-ct (boolean? #f) 'two)
+   (when-ct (boolean? #f) 'three)
+   (else #f)))
+
+(let ((on-pair
+       (lambda-ct (x) (pair? x)
+         'pair))
+      (on-boolean
+       (lambda-ct (x) (boolean? x)
+         'boolean)))
+  (test
+   "lambda-ct basic"
+   'boolean
+   (cond-thunk
+     (on-pair #f)
+     (on-boolean #f)
+     (else #f))))
+
+(let ()
+  (define-ct (on-pair x) (pair? x)
+    'pair)
+  (define-ct (on-boolean x) (boolean? x)
+    'boolean)
+  (test
+   "define-ct basic"
+   'boolean
+   (cond-thunk
+     (on-pair #f)
+     (on-boolean #f)
+     (else #f))))
+(test-exit)