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// Copyright 2020 The Android Open Source Project
//
// 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 rust
import (
"strings"
"testing"
)
func TestRustBindgen(t *testing.T) {
ctx := testRust(t, `
rust_bindgen {
name: "libbindgen",
defaults: ["cc_defaults_flags"],
wrapper_src: "src/any.h",
crate_name: "bindgen",
stem: "libbindgen",
source_stem: "bindings",
bindgen_flags: ["--bindgen-flag.*"],
cflags: ["--clang-flag()"],
shared_libs: ["libfoo_shared"],
static_libs: ["libfoo_static"],
}
cc_library_shared {
name: "libfoo_shared",
export_include_dirs: ["shared_include"],
}
cc_library_static {
name: "libfoo_static",
export_include_dirs: ["static_include"],
}
cc_defaults {
name: "cc_defaults_flags",
cflags: ["--default-flag"],
}
`)
libbindgen := ctx.ModuleForTests("libbindgen", "android_arm64_armv8-a_source").Output("bindings.rs")
// Ensure that the flags are present and escaped
if !strings.Contains(libbindgen.Args["flags"], "'--bindgen-flag.*'") {
t.Errorf("missing bindgen flags in rust_bindgen rule: flags %#v", libbindgen.Args["flags"])
}
if !strings.Contains(libbindgen.Args["cflags"], "'--clang-flag()'") {
t.Errorf("missing clang cflags in rust_bindgen rule: cflags %#v", libbindgen.Args["cflags"])
}
if !strings.Contains(libbindgen.Args["cflags"], "-Ishared_include") {
t.Errorf("missing shared_libs exported includes in rust_bindgen rule: cflags %#v", libbindgen.Args["cflags"])
}
if !strings.Contains(libbindgen.Args["cflags"], "-Istatic_include") {
t.Errorf("missing static_libs exported includes in rust_bindgen rule: cflags %#v", libbindgen.Args["cflags"])
}
if !strings.Contains(libbindgen.Args["cflags"], "--default-flag") {
t.Errorf("rust_bindgen missing cflags defined in cc_defaults: cflags %#v", libbindgen.Args["cflags"])
}
}
func TestRustBindgenCustomBindgen(t *testing.T) {
ctx := testRust(t, `
rust_bindgen {
name: "libbindgen",
wrapper_src: "src/any.h",
crate_name: "bindgen",
stem: "libbindgen",
source_stem: "bindings",
custom_bindgen: "my_bindgen"
}
rust_binary_host {
name: "my_bindgen",
srcs: ["foo.rs"],
}
`)
libbindgen := ctx.ModuleForTests("libbindgen", "android_arm64_armv8-a_source").Output("bindings.rs")
// The rule description should contain the custom binary name rather than bindgen, so checking the description
// should be sufficient.
if !strings.Contains(libbindgen.Description, "my_bindgen") {
t.Errorf("Custom bindgen binary %s not used for libbindgen: rule description %#v", "my_bindgen",
libbindgen.Description)
}
}
func TestRustBindgenStdVersions(t *testing.T) {
testRustError(t, "c_std and cpp_std cannot both be defined at the same time.", `
rust_bindgen {
name: "libbindgen",
wrapper_src: "src/any.h",
crate_name: "bindgen",
stem: "libbindgen",
source_stem: "bindings",
c_std: "somevalue",
cpp_std: "somevalue",
}
`)
ctx := testRust(t, `
rust_bindgen {
name: "libbindgen_cstd",
wrapper_src: "src/any.h",
crate_name: "bindgen",
stem: "libbindgen",
source_stem: "bindings",
c_std: "foo"
}
rust_bindgen {
name: "libbindgen_cppstd",
wrapper_src: "src/any.h",
crate_name: "bindgen",
stem: "libbindgen",
source_stem: "bindings",
cpp_std: "foo"
}
`)
libbindgen_cstd := ctx.ModuleForTests("libbindgen_cstd", "android_arm64_armv8-a_source").Output("bindings.rs")
libbindgen_cppstd := ctx.ModuleForTests("libbindgen_cppstd", "android_arm64_armv8-a_source").Output("bindings.rs")
if !strings.Contains(libbindgen_cstd.Args["cflags"], "-std=foo") {
t.Errorf("c_std value not passed in to rust_bindgen as a clang flag")
}
if !strings.Contains(libbindgen_cppstd.Args["cflags"], "-std=foo") {
t.Errorf("cpp_std value not passed in to rust_bindgen as a clang flag")
}
}
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