feat(third_party/bazel): Check in rules_haskell from Tweag

third_party/bazel/rules_haskell/tests/version-macros/BUILD.bazel

@@ -0,0 +1,59 @@
+load(
+    "@io_tweag_rules_haskell//haskell:haskell.bzl",
+    "haskell_library",
+    "haskell_test",
+)
+load(
+    "@io_tweag_rules_haskell//haskell:c2hs.bzl",
+    "c2hs_library",
+)
+
+package(default_testonly = 1)
+
+haskell_library(
+    name = "versioned-lib",
+    srcs = ["VersionedLib.hs"],
+    version = "1.2.3.4",
+    deps = ["//tests/hackage:base"],
+)
+
+haskell_test(
+    name = "version_macros",
+    size = "small",
+    srcs = [
+        "HsLib.hs",
+        "HscLib.hsc",
+        "Main.hs",
+    ],
+    version = "3.4.5.6",
+    deps = [
+        ":versioned-lib",
+        "//tests/hackage:base",
+    ],
+)
+
+c2hs_library(
+    name = "c2hs-lib",
+    srcs = ["C2hsLib.chs"],
+    tags = ["requires_c2hs"],
+    version = "4.5.6.7",
+    deps = [
+        ":versioned-lib",
+        "//tests/hackage:base",
+    ],
+)
+
+haskell_test(
+    name = "version_macros_c2hs",
+    size = "small",
+    srcs = [
+        "MainC2hs.hs",
+        ":c2hs-lib",
+    ],
+    tags = ["requires_c2hs"],
+    version = "4.5.6.7",
+    deps = [
+        ":versioned-lib",
+        "//tests/hackage:base",
+    ],
+)

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

third_party/bazel/rules_haskell/tests/version-macros/HsLib.hs

@@ -0,0 +1,46 @@
+{-# LANGUAGE CPP #-}
+
+module HsLib where
+
+import Control.Monad (unless)
+
+check_version_versioned_lib :: IO ()
+#ifndef VERSION_versioned_lib
+check_version_versioned_lib = fail "hs: VERSION_versioned_lib missing"
+#else
+check_version_versioned_lib =
+  unless (VERSION_versioned_lib == "1.2.3.4") $
+    fail "hs: VERSION_versioned_lib invalid"
+#endif
+
+check_min_version_versioned_lib :: IO ()
+#ifndef MIN_VERSION_versioned_lib
+check_min_version_versioned_lib = fail "hs: MIN_VERSION_versioned_lib missing"
+#elif !MIN_VERSION_versioned_lib(1,2,3)
+check_min_version_versioned_lib = fail "hs: MIN_VERSION_versioned_lib invalid"
+#else
+check_min_version_versioned_lib = pure ()
+#endif
+
+check_version_base :: IO ()
+#ifndef VERSION_base
+check_version_base = fail "hs: VERSION_base missing"
+#else
+check_version_base = pure ()
+#endif
+
+check_min_version_base :: IO ()
+#ifndef MIN_VERSION_base
+check_min_version_base = fail "hs: MIN_VERSION_base missing"
+#elif !MIN_VERSION_base(0,0,0)
+check_min_version_base = fail "hs: 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

third_party/bazel/rules_haskell/tests/version-macros/HscLib.hsc

@@ -0,0 +1,44 @@
+module HscLib where
+
+import Control.Monad (unless)
+
+check_version_versioned_lib :: IO ()
+#ifndef VERSION_versioned_lib
+check_version_versioned_lib = fail "hsc2hs: VERSION_versioned_lib missing"
+#else
+check_version_versioned_lib =
+  unless (#{const_str VERSION_versioned_lib} == "1.2.3.4") $
+    fail "hsc2hs: VERSION_versioned_lib invalid"
+#endif
+
+check_min_version_versioned_lib :: IO ()
+#ifndef MIN_VERSION_versioned_lib
+check_min_version_versioned_lib = fail "hsc2hs: MIN_VERSION_versioned_lib missing"
+#elif !MIN_VERSION_versioned_lib(1,2,3)
+check_min_version_versioned_lib = fail "hsc2hs: MIN_VERSION_versioned_lib invalid"
+#else
+check_min_version_versioned_lib = pure ()
+#endif
+
+check_version_base :: IO ()
+#ifndef VERSION_base
+check_version_base = fail "hsc2hs: VERSION_base missing"
+#else
+check_version_base = pure ()
+#endif
+
+check_min_version_base :: IO ()
+#ifndef MIN_VERSION_base
+check_min_version_base = fail "hsc2hs: MIN_VERSION_base missing"
+#elif !MIN_VERSION_base(0,0,0)
+check_min_version_base = fail "hsc2hs: 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

third_party/bazel/rules_haskell/tests/version-macros/Main.hs

@@ -0,0 +1,9 @@
+module Main where
+
+import qualified HscLib
+import qualified HsLib
+
+main :: IO ()
+main = do
+  HscLib.check
+  HsLib.check

third_party/bazel/rules_haskell/tests/version-macros/MainC2hs.hs

@@ -0,0 +1,7 @@
+module Main where
+
+import qualified C2hsLib
+
+main :: IO ()
+main = do
+  C2hsLib.check

third_party/bazel/rules_haskell/tests/version-macros/VersionedLib.hs

@@ -0,0 +1 @@
+module VersionedLib where