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

third_party/bazel/rules_haskell/examples/primitive/BUILD.bazel

@@ -0,0 +1,33 @@
+load(
+    "@io_tweag_rules_haskell//haskell:haskell.bzl",
+    "haskell_cc_import",
+    "haskell_library",
+    "haskell_toolchain_library",
+)
+
+haskell_toolchain_library(name = "base")
+
+haskell_toolchain_library(name = "ghc-prim")
+
+cc_library(
+    name = "memops",
+    srcs = ["cbits/primitive-memops.c"],
+    hdrs = ["cbits/primitive-memops.h"],
+    deps = ["@ghc//:threaded-rts"],
+)
+
+haskell_library(
+    name = "primitive",
+    srcs = glob([
+        "Data/**/*.hs",
+        "Control/**/*.hs",
+    ]),
+    version = "0",
+    visibility = ["//visibility:public"],
+    deps = [
+        ":base",
+        ":ghc-prim",
+        ":memops",
+        "//transformers",
+    ],
+)