Merge "Flag an error on empty rust module srcs" am: 6ec96b8102 am: 2e2fb66ecc (fdf99b1a) · Commits · e / os / android_build_soong

rust/compiler.go

+4 −0

Original line number	Diff line number	Diff line
		@@ -449,6 +449,10 @@ func (compiler *baseCompiler) relativeInstallPath() string {

		// Returns the Path for the main source file along with Paths for generated source files from modules listed in srcs.
		func srcPathFromModuleSrcs(ctx ModuleContext, srcs []string) (android.Path, android.Paths) {
		if len(srcs) == 0 {
		ctx.PropertyErrorf("srcs", "srcs must not be empty")
		}

		// The srcs can contain strings with prefix ":".
		// They are dependent modules of this module, with android.SourceDepTag.
		// They are not the main source file compiled by rustc.

+35 −0

Original line number	Diff line number	Diff line
		@@ -98,6 +98,41 @@ func TestEnforceSingleSourceFile(t *testing.T) {
		}`)
		}

		// Test that we reject _no_ source files.
		func TestEnforceMissingSourceFiles(t *testing.T) {

		singleSrcError := "srcs must not be empty"

		// Test libraries
		testRustError(t, singleSrcError, `
		rust_library_host {
		name: "foo-bar-library",
		crate_name: "foo",
		}`)

		// Test binaries
		testRustError(t, singleSrcError, `
		rust_binary_host {
		name: "foo-bar-binary",
		crate_name: "foo",
		}`)

		// Test proc_macros
		testRustError(t, singleSrcError, `
		rust_proc_macro {
		name: "foo-bar-proc-macro",
		crate_name: "foo",
		}`)

		// Test prebuilts
		testRustError(t, singleSrcError, `
		rust_prebuilt_dylib {
		name: "foo-bar-prebuilt",
		crate_name: "foo",
		host_supported: true,
		}`)
		}

		// Test environment vars for Cargo compat are set.
		func TestCargoCompat(t *testing.T) {
		ctx := testRust(t, `