Merge "Flag an error on empty rust module srcs"
diff --git a/rust/compiler.go b/rust/compiler.go
index 1ce71f6..cada985 100644
--- a/rust/compiler.go
+++ b/rust/compiler.go
@@ -449,6 +449,10 @@
// 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.
diff --git a/rust/compiler_test.go b/rust/compiler_test.go
index f589b69..ec6829a 100644
--- a/rust/compiler_test.go
+++ b/rust/compiler_test.go
@@ -98,6 +98,41 @@
}`)
}
+// 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, `