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-rw-r--r--module/system/base/message.scm14
1 files changed, 14 insertions, 0 deletions
diff --git a/module/system/base/message.scm b/module/system/base/message.scm
index 8cf285afd..9accf712a 100644
--- a/module/system/base/message.scm
+++ b/module/system/base/message.scm
@@ -126,6 +126,20 @@
"~A: warning: possibly wrong number of arguments to `~A'~%"
loc name))))
+ (duplicate-case-datum
+ "report a duplicate datum in a case expression"
+ ,(lambda (port loc datum clause case-expr)
+ (emit port
+ "~A: warning: duplicate datum ~S in clause ~S of case expression ~S~%"
+ loc datum clause case-expr)))
+
+ (bad-case-datum
+ "report a case datum that cannot be meaningfully compared using `eqv?'"
+ ,(lambda (port loc datum clause case-expr)
+ (emit port
+ "~A: warning: datum ~S cannot be meaningfully compared using `eqv?' in clause ~S of case expression ~S~%"
+ loc datum clause case-expr)))
+
(format
"report wrong number of arguments to `format'"
,(lambda (port loc . rest)