Flag an error on empty rust module srcs
It's an error if a rust module's srcs is empty. Prior to this change
the output was a panic that complains loudly about a slice error and
nothing else. This change doesn't stop the panic, but at least adds
a bit of context so devs who make a simple mistake can more easily
fix it.
Test: SOONG_GEN_RUST_PROJECT=1 m nothing
Change-Id: Id7d8465d533413c3000699661222a53a7c8678f3
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, `