Check in gVisor.

PiperOrigin-RevId: 194583126
Change-Id: Ica1d8821a90f74e7e745962d71801c598c652463

3 files changed, 133 insertions, 0 deletions

diff --git a/tools/go_generics/rules_tests/BUILD b/tools/go_generics/rules_tests/BUILD
new file mode 100644
index 000000000..2d9a6fa9d
--- /dev/null
+++ b/tools/go_generics/rules_tests/BUILD
@@ -0,0 +1,43 @@
+package(licenses = ["notice"])  # Apache 2.0
+
+load("@io_bazel_rules_go//go:def.bzl", "go_test")
+load("//tools/go_generics:defs.bzl", "go_template", "go_template_instance")
+
+go_template_instance(
+    name = "instance",
+    out = "instance_test.go",
+    consts = {
+        "n": "20",
+        "m": "\"test\"",
+        "o": "math.MaxUint64",
+    },
+    imports = {
+        "math": "math",
+    },
+    package = "template_test",
+    template = ":test_template",
+    types = {
+        "t": "int",
+    },
+)
+
+go_template(
+    name = "test_template",
+    srcs = [
+        "template.go",
+    ],
+    opt_consts = [
+        "n",
+        "m",
+        "o",
+    ],
+    opt_types = ["t"],
+)
+
+go_test(
+    name = "template_test",
+    srcs = [
+        "instance_test.go",
+        "template_test.go",
+    ],
+)
diff --git a/tools/go_generics/rules_tests/template.go b/tools/go_generics/rules_tests/template.go
new file mode 100644
index 000000000..73c024f0e
--- /dev/null
+++ b/tools/go_generics/rules_tests/template.go
@@ -0,0 +1,42 @@
+// Copyright 2018 Google Inc.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package template
+
+type t float
+
+const (
+	n t = 10.1
+	m   = "abc"
+	o   = 0
+)
+
+func max(a, b t) t {
+	if a > b {
+		return a
+	}
+	return b
+}
+
+func add(a t) t {
+	return a + n
+}
+
+func getName() string {
+	return m
+}
+
+func getMax() uint64 {
+	return o
+}
diff --git a/tools/go_generics/rules_tests/template_test.go b/tools/go_generics/rules_tests/template_test.go
new file mode 100644
index 000000000..76c4cdb64
--- /dev/null
+++ b/tools/go_generics/rules_tests/template_test.go
@@ -0,0 +1,48 @@
+// Copyright 2018 Google Inc.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package template_test
+
+import (
+	"math"
+	"testing"
+)
+
+func TestMax(t *testing.T) {
+	var a int = max(10, 20)
+	if a != 20 {
+		t.Errorf("Bad result of max, got %v, want %v", a, 20)
+	}
+}
+
+func TestIntConst(t *testing.T) {
+	var a int = add(10)
+	if a != 30 {
+		t.Errorf("Bad result of add, got %v, want %v", a, 30)
+	}
+}
+
+func TestStrConst(t *testing.T) {
+	v := getName()
+	if v != "test" {
+		t.Errorf("Bad name, got %v, want %v", v, "test")
+	}
+}
+
+func TestImport(t *testing.T) {
+	v := getMax()
+	if v != math.MaxUint64 {
+		t.Errorf("Bad max value, got %v, want %v", v, uint64(math.MaxUint64))
+	}
+}