Convert go_generics tests to starlark.

For some reason these tests were broken when run via the bazel docker
container. The mechanism used was a bit crazy (self-extracting bundle),
so convert them to use straight-forward starlark rules. This has the
added advantaged that they are now independent tests.

3 files changed, 100 insertions, 0 deletions

diff --git a/tools/go_generics/tests/anon/BUILD b/tools/go_generics/tests/anon/BUILD
new file mode 100644
index 000000000..1890f2817
--- /dev/null
+++ b/tools/go_generics/tests/anon/BUILD
@@ -0,0 +1,12 @@
+load("//tools/go_generics/tests:defs.bzl", "go_generics_test")
+
+go_generics_test(
+    name = "anon",
+    anon = True,
+    inputs = ["input.go"],
+    output = "output.go",
+    suffix = "New",
+    types = {
+        "T": "Q",
+    },
+)
diff --git a/tools/go_generics/tests/anon/input.go b/tools/go_generics/tests/anon/input.go
new file mode 100644
index 000000000..44086d522
--- /dev/null
+++ b/tools/go_generics/tests/anon/input.go
@@ -0,0 +1,46 @@
+// Copyright 2019 The gVisor Authors.
+//
+// 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 tests
+
+type T interface {
+	Apply(T) T
+}
+
+type Foo struct {
+	T
+	Bar map[string]T `json:"bar,omitempty"`
+}
+
+type Baz struct {
+	T someTypeNotT
+}
+
+func (f Foo) GetBar(name string) T {
+	b, ok := f.Bar[name]
+	if ok {
+		b = f.Apply(b)
+	} else {
+		b = f.T
+	}
+	return b
+}
+
+func foobar() {
+	a := Baz{}
+	a.T = 0 // should not be renamed, this is a limitation
+
+	b := otherpkg.UnrelatedType{}
+	b.T = 0 // should not be renamed, this is a limitation
+}
diff --git a/tools/go_generics/tests/anon/output.go b/tools/go_generics/tests/anon/output.go
new file mode 100644
index 000000000..7fa791853
--- /dev/null
+++ b/tools/go_generics/tests/anon/output.go
@@ -0,0 +1,42 @@
+// Copyright 2019 The gVisor Authors.
+//
+// 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 main
+
+type FooNew struct {
+	Q
+	Bar map[string]Q `json:"bar,omitempty"`
+}
+
+type BazNew struct {
+	T someTypeNotT
+}
+
+func (f FooNew) GetBar(name string) Q {
+	b, ok := f.Bar[name]
+	if ok {
+		b = f.Apply(b)
+	} else {
+		b = f.Q
+	}
+	return b
+}
+
+func foobarNew() {
+	a := BazNew{}
+	a.Q = 0
+
+	b := otherpkg.UnrelatedType{}
+	b.Q = 0
+}