From 09041ca155485885a2f337f71b04442e991a550d Mon Sep 17 00:00:00 2001
From: Tom Smeding <tom@tomsmeding.com>
Date: Fri, 16 May 2025 10:42:24 +0200
Subject: default-show-instances flag

---
 ox-arrays.cabal | 11 +++++++++++
 1 file changed, 11 insertions(+)

(limited to 'ox-arrays.cabal')

diff --git a/ox-arrays.cabal b/ox-arrays.cabal
index 3ab0e71..29d04a4 100644
--- a/ox-arrays.cabal
+++ b/ox-arrays.cabal
@@ -42,6 +42,14 @@ flag pedantic-c-warnings
   default: False
   manual: True
 
+flag default-show-instances
+  description:
+    Use default GHC-derived Show instances for arrays, shapes and indices. This
+    exposes the internal struct-of-arrays representation and is less readable,
+    but can be useful for ox-arrays debugging.
+  default: False
+  manual: True
+
 library
   exposed-modules:
     -- put this module on top so ghci considers it the "main" module
@@ -69,6 +77,9 @@ library
       Data.Array.Nested.Trace
       Data.Array.Nested.Trace.TH
 
+  if flag(default-show-instances)
+    cpp-options: -DOXAR_DEFAULT_SHOW_INSTANCES
+
   build-depends:
     strided-array-ops,
 
-- 
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