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authorKevin Krakauer <krakauer@google.com>2020-01-29 13:21:12 -0800
committerKevin Krakauer <krakauer@google.com>2020-01-29 13:21:12 -0800
commitb615f94aeacb2c21bb59c8b44f303e7b7ca05ad6 (patch)
tree79907e842eeba2a1f01acb5b5661800dc6ef2174 /tools/go_marshal/defs.bzl
parentd6a2e01d3e57e0837c7e5cfda3b56c4dcfbb4627 (diff)
parent148fda60e8dee29f2df85e3104e3d5de1a225bcf (diff)
Merge branch 'master' into ipt-udp-matchers
Diffstat (limited to 'tools/go_marshal/defs.bzl')
-rw-r--r--tools/go_marshal/defs.bzl112
1 files changed, 12 insertions, 100 deletions
diff --git a/tools/go_marshal/defs.bzl b/tools/go_marshal/defs.bzl
index c32eb559f..d79786a68 100644
--- a/tools/go_marshal/defs.bzl
+++ b/tools/go_marshal/defs.bzl
@@ -1,57 +1,14 @@
-"""Marshal is a tool for generating marshalling interfaces for Go types.
-
-The recommended way is to use the go_library rule defined below with mostly
-identical configuration as the native go_library rule.
-
-load("//tools/go_marshal:defs.bzl", "go_library")
-
-go_library(
- name = "foo",
- srcs = ["foo.go"],
-)
-
-Under the hood, the go_marshal rule is used to generate a file that will
-appear in a Go target; the output file should appear explicitly in a srcs list.
-For example (the above is still the preferred way):
-
-load("//tools/go_marshal:defs.bzl", "go_marshal")
-
-go_marshal(
- name = "foo_abi",
- srcs = ["foo.go"],
- out = "foo_abi.go",
- package = "foo",
-)
-
-go_library(
- name = "foo",
- srcs = [
- "foo.go",
- "foo_abi.go",
- ],
- deps = [
- "//tools/go_marshal:marshal",
- "//pkg/sentry/platform/safecopy",
- "//pkg/sentry/usermem",
- ],
-)
-"""
-
-load("@io_bazel_rules_go//go:def.bzl", _go_library = "go_library", _go_test = "go_test")
+"""Marshal is a tool for generating marshalling interfaces for Go types."""
def _go_marshal_impl(ctx):
"""Execute the go_marshal tool."""
output = ctx.outputs.lib
output_test = ctx.outputs.test
- (build_dir, _, _) = ctx.build_file_path.rpartition("/BUILD")
-
- decl = "/".join(["gvisor.dev/gvisor", build_dir])
# Run the marshal command.
args = ["-output=%s" % output.path]
args += ["-pkg=%s" % ctx.attr.package]
args += ["-output_test=%s" % output_test.path]
- args += ["-declarationPkg=%s" % decl]
if ctx.attr.debug:
args += ["-debug"]
@@ -83,7 +40,6 @@ go_marshal = rule(
implementation = _go_marshal_impl,
attrs = {
"srcs": attr.label_list(mandatory = True, allow_files = True),
- "libname": attr.string(mandatory = True),
"imports": attr.string_list(mandatory = False),
"package": attr.string(mandatory = True),
"debug": attr.bool(doc = "enable debugging output from the go_marshal tool"),
@@ -95,58 +51,14 @@ go_marshal = rule(
},
)
-def go_library(name, srcs, deps = [], imports = [], debug = False, **kwargs):
- """wraps the standard go_library and does mashalling interface generation.
-
- Args:
- name: Same as native go_library.
- srcs: Same as native go_library.
- deps: Same as native go_library.
- imports: Extra import paths to pass to the go_marshal tool.
- debug: Enables debugging output from the go_marshal tool.
- **kwargs: Remaining args to pass to the native go_library rule unmodified.
- """
- go_marshal(
- name = name + "_abi_autogen",
- libname = name,
- srcs = [src for src in srcs if src.endswith(".go")],
- debug = debug,
- imports = imports,
- package = name,
- )
-
- extra_deps = [
- "//tools/go_marshal/marshal",
- "//pkg/sentry/platform/safecopy",
- "//pkg/sentry/usermem",
- ]
-
- all_srcs = srcs + [name + "_abi_autogen_unsafe.go"]
- all_deps = deps + [] # + extra_deps
-
- for extra in extra_deps:
- if extra not in deps:
- all_deps.append(extra)
-
- _go_library(
- name = name,
- srcs = all_srcs,
- deps = all_deps,
- **kwargs
- )
-
- # Don't pass importpath arg to go_test.
- kwargs.pop("importpath", "")
-
- _go_test(
- name = name + "_abi_autogen_test",
- srcs = [name + "_abi_autogen_test.go"],
- # Generated test has a fixed set of dependencies since we generate these
- # tests. They should only depend on the library generated above, and the
- # Marshallable interface.
- deps = [
- ":" + name,
- "//tools/go_marshal/analysis",
- ],
- **kwargs
- )
+# marshal_deps are the dependencies requied by generated code.
+marshal_deps = [
+ "//tools/go_marshal/marshal",
+ "//pkg/safecopy",
+ "//pkg/usermem",
+]
+
+# marshal_test_deps are required by test targets.
+marshal_test_deps = [
+ "//tools/go_marshal/analysis",
+]