// 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"], header_libs: ["libfoo_header"], } cc_library_shared { name: "libfoo_shared", export_include_dirs: ["shared_include"], } cc_library_static { name: "libfoo_static", export_include_dirs: ["static_include"], } cc_library_headers { name: "libfoo_header", export_include_dirs: ["header_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"], "-Iheader_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") } } func TestBindgenDisallowedFlags(t *testing.T) { // Make sure passing '-x c++' to cflags generates an error testRustError(t, "cflags: -x c\\+\\+ should not be specified in cflags.*", ` rust_bindgen { name: "libbad_flag", wrapper_src: "src/any.h", crate_name: "bindgen", stem: "libbindgen", source_stem: "bindings", cflags: ["-x c++"] } `) // Make sure passing '-std=' to cflags generates an error testRustError(t, "cflags: -std should not be specified in cflags.*", ` rust_bindgen { name: "libbad_flag", wrapper_src: "src/any.h", crate_name: "bindgen", stem: "libbindgen", source_stem: "bindings", cflags: ["-std=foo"] } `) }