From 128875b501bc2989617ae553317b80faa556d752 Mon Sep 17 00:00:00 2001
From: Vincent Ambo <tazjin@google.com>
Date: Thu, 15 Aug 2019 16:11:30 +0100
Subject: chore: Remove remaining Bazel-related files

---
 third_party/bazel/rules_haskell/haskell/c2hs.bzl | 183 -----------------------
 1 file changed, 183 deletions(-)
 delete mode 100644 third_party/bazel/rules_haskell/haskell/c2hs.bzl

(limited to 'third_party/bazel/rules_haskell/haskell/c2hs.bzl')

diff --git a/third_party/bazel/rules_haskell/haskell/c2hs.bzl b/third_party/bazel/rules_haskell/haskell/c2hs.bzl
deleted file mode 100644
index 5dcf4a2cf31d..000000000000
--- a/third_party/bazel/rules_haskell/haskell/c2hs.bzl
+++ /dev/null
@@ -1,183 +0,0 @@
-"""Support for c2hs"""
-
-load("@bazel_skylib//lib:paths.bzl", "paths")
-load(
-    "@io_tweag_rules_haskell//haskell:providers.bzl",
-    "C2hsLibraryInfo",
-    "HaskellInfo",
-)
-load(":cc.bzl", "cc_interop_info")
-load(":private/context.bzl", "haskell_context")
-load(":private/dependencies.bzl", "gather_dep_info")
-load(
-    ":private/path_utils.bzl",
-    "declare_compiled",
-    "target_unique_name",
-)
-load(":private/set.bzl", "set")
-load(":private/version_macros.bzl", "version_macro_includes")
-
-def _c2hs_library_impl(ctx):
-    hs = haskell_context(ctx)
-
-    cc = cc_interop_info(ctx)
-    args = hs.actions.args()
-    c2hs = ctx.toolchains["@io_tweag_rules_haskell//haskell/c2hs:toolchain"].c2hs
-
-    if len(ctx.files.srcs) != 1:
-        fail("srcs field should contain exactly one file.")
-    chs_file = ctx.files.srcs[0]
-
-    # Output a Haskell source file.
-    chs_dir_raw = target_unique_name(hs, "chs")
-    hs_file = declare_compiled(hs, chs_file, ".hs", directory = chs_dir_raw)
-    chi_file = declare_compiled(hs, chs_file, ".chi", directory = chs_dir_raw)
-    args.add_all([chs_file.path, "-o", hs_file.path])
-
-    args.add("-C-E")
-    args.add_all(["--cpp", cc.tools.cpp])
-    args.add("-C-includeghcplatform.h")
-    args.add("-C-includeghcversion.h")
-    args.add_all(["-C" + x for x in cc.cpp_flags])
-    args.add_all(["-C" + x for x in cc.include_args])
-
-    dep_chi_files = [
-        dep[C2hsLibraryInfo].chi_file
-        for dep in ctx.attr.deps
-        if C2hsLibraryInfo in dep
-    ]
-
-    chi_includes = [
-        "-i" + dep[C2hsLibraryInfo].import_dir
-        for dep in ctx.attr.deps
-        if C2hsLibraryInfo in dep
-    ]
-    args.add_all(chi_includes)
-
-    version_macro_headers = set.empty()
-    if ctx.attr.version:
-        dep_info = gather_dep_info(ctx, ctx.attr.deps)
-        (version_macro_headers, version_macro_flags) = version_macro_includes(dep_info)
-        args.add_all(["-C" + x for x in version_macro_flags])
-
-    hs.actions.run_shell(
-        inputs = depset(transitive = [
-            depset(cc.hdrs),
-            depset([hs.tools.ghc, c2hs, chs_file]),
-            depset(dep_chi_files),
-            depset(cc.files),
-            set.to_depset(version_macro_headers),
-        ]),
-        outputs = [hs_file, chi_file],
-        command = """
-        # Include libdir in include path just like hsc2hs does.
-        libdir=$({ghc} --print-libdir)
-        {c2hs} -C-I$libdir/include "$@"
-        """.format(
-            ghc = hs.tools.ghc.path,
-            c2hs = c2hs.path,
-        ),
-        mnemonic = "HaskellC2Hs",
-        arguments = [args],
-        env = hs.env,
-    )
-
-    idir = paths.join(
-        hs.bin_dir.path,
-        hs.label.workspace_root,
-        hs.label.package,
-        chs_dir_raw,
-    )
-
-    return [
-        DefaultInfo(files = depset([hs_file])),
-        C2hsLibraryInfo(
-            chi_file = chi_file,
-            import_dir = idir,
-        ),
-    ]
-
-c2hs_library = rule(
-    _c2hs_library_impl,
-    attrs = {
-        "deps": attr.label_list(),
-        "srcs": attr.label_list(allow_files = [".chs"]),
-        "src_strip_prefix": attr.string(
-            doc = "Directory in which module hierarchy starts.",
-        ),
-        "version": attr.string(
-            doc = "Executable version. If this is specified, CPP version macros will be generated for this build.",
-        ),
-        "_cc_toolchain": attr.label(
-            default = Label("@bazel_tools//tools/cpp:current_cc_toolchain"),
-        ),
-    },
-    toolchains = [
-        "@io_tweag_rules_haskell//haskell:toolchain",
-        "@io_tweag_rules_haskell//haskell/c2hs:toolchain",
-    ],
-)
-
-def _c2hs_toolchain_impl(ctx):
-    return [
-        platform_common.ToolchainInfo(
-            name = ctx.label.name,
-            c2hs = ctx.file.c2hs,
-        ),
-    ]
-
-_c2hs_toolchain = rule(
-    _c2hs_toolchain_impl,
-    attrs = {
-        "c2hs": attr.label(
-            doc = "The c2hs executable.",
-            mandatory = True,
-            allow_single_file = True,
-        ),
-    },
-)
-
-def c2hs_toolchain(name, c2hs, **kwargs):
-    """Declare a Haskell c2hs toolchain.
-
-    You need at least one of these declared somewhere in your `BUILD`
-    files for the `chs_library` rule to work. Once declared, you then
-    need to *register* the toolchain using `register_toolchains` in
-    your `WORKSPACE` file (see example below).
-
-    Example:
-
-      In a `BUILD` file:
-
-      ```bzl
-      c2hs_toolchain(
-          name = "c2hs",
-          c2hs = "@c2hs//:bin",
-      )
-      ```
-
-      where `@c2hs` is an external repository defined in the
-      `WORKSPACE`, e.g. using:
-
-      ```bzl
-      nixpkgs_package(
-          name = "c2hs",
-          attribute_path = "haskell.packages.ghc822.c2hs",
-      )
-
-      register_toolchains("//:c2hs")
-      ```
-    """
-    impl_name = name + "-impl"
-    _c2hs_toolchain(
-        name = impl_name,
-        c2hs = c2hs,
-        visibility = ["//visibility:public"],
-        **kwargs
-    )
-
-    native.toolchain(
-        name = name,
-        toolchain_type = "@io_tweag_rules_haskell//haskell/c2hs:toolchain",
-        toolchain = ":" + impl_name,
-    )
-- 
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