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-rw-r--r--third_party/bazel/rules_haskell/tests/version-macros/C2hsLib.chs44
1 files changed, 44 insertions, 0 deletions
diff --git a/third_party/bazel/rules_haskell/tests/version-macros/C2hsLib.chs b/third_party/bazel/rules_haskell/tests/version-macros/C2hsLib.chs
new file mode 100644
index 000000000000..4b484af2a3ed
--- /dev/null
+++ b/third_party/bazel/rules_haskell/tests/version-macros/C2hsLib.chs
@@ -0,0 +1,44 @@
+module C2hsLib where
+
+import Control.Monad (unless)
+
+check_version_versioned_lib :: IO ()
+#ifndef VERSION_versioned_lib
+check_version_versioned_lib = fail "c2hs: VERSION_versioned_lib missing"
+#else
+check_version_versioned_lib =
+  unless ({#const VERSION_versioned_lib#} == "1.2.3.4") $
+    fail "c2hs: VERSION_versioned_lib invalid"
+#endif
+
+check_min_version_versioned_lib :: IO ()
+#ifndef MIN_VERSION_versioned_lib
+check_min_version_versioned_lib = fail "c2hs: MIN_VERSION_versioned_lib missing"
+#elif !MIN_VERSION_versioned_lib(1,2,3)
+check_min_version_versioned_lib = fail "c2hs: MIN_VERSION_versioned_lib invalid"
+#else
+check_min_version_versioned_lib = pure ()
+#endif
+
+check_version_base :: IO ()
+#ifndef VERSION_base
+check_version_base = fail "c2hs: VERSION_base missing"
+#else
+check_version_base = pure ()
+#endif
+
+check_min_version_base :: IO ()
+#ifndef MIN_VERSION_base
+check_min_version_base = fail "c2hs: MIN_VERSION_base missing"
+#elif !MIN_VERSION_base(0,0,0)
+check_min_version_base = fail "c2hs: MIN_VERSION_base invalid"
+#else
+check_min_version_base = pure ()
+#endif
+
+check :: IO ()
+check = do
+  check_version_versioned_lib
+  check_min_version_versioned_lib
+  check_version_base
+  check_min_version_base