Generate virtual input file for instantiations
PiperOrigin-RevId: 473992049
diff --git a/rs_bindings_from_cc/generate_bindings_and_metadata_test.cc b/rs_bindings_from_cc/generate_bindings_and_metadata_test.cc
index 8b34b75..997fef3 100644
--- a/rs_bindings_from_cc/generate_bindings_and_metadata_test.cc
+++ b/rs_bindings_from_cc/generate_bindings_and_metadata_test.cc
@@ -109,61 +109,95 @@
}
TEST(GenerateBindingsAndMetadataTest,
- InstantiationsEmptyForTypedeffedTemplates) {
- ASSERT_OK_AND_ASSIGN(auto instantiations, GetInstantiationsFor(
- R"cc(
- template <typename T>
- class MyTemplate {
- T t;
- };
+ RegularTypeAliasNotPresentInInstantiations) {
+ ASSERT_OK_AND_ASSIGN(auto instantiations,
+ GetInstantiationsFor(
+ R"cc(
+ template <typename T>
+ class MyTemplate {};
- using MyFunnyTemplate = MyTemplate<bool>;
- )cc",
- ""));
+ using MyFunnyTemplate = MyTemplate<bool>;
- ASSERT_THAT(instantiations, IsEmpty());
+ template <typename T>
+ class ExpectedTemplate {};
+ )cc",
+ "cc_template!{ExpectedTemplate<bool>}"));
+
+ ASSERT_THAT(instantiations,
+ ElementsAre(Pair("ExpectedTemplate<bool>",
+ "__CcTemplateInst16ExpectedTemplateIbE")));
}
TEST(GenerateBindingsAndMetadataTest,
- InstantiationsEmptyForExplicitInstantiationDeclarations) {
- ASSERT_OK_AND_ASSIGN(auto instantiations, GetInstantiationsFor(
- R"cc(
- template <typename T>
- class MyTemplate {
- T t;
- };
+ ExplicitClassTemplateInstantiationDeclarationsNotPresentInInstantiations) {
+ ASSERT_OK_AND_ASSIGN(auto instantiations,
+ GetInstantiationsFor(
+ R"cc(
+ template <typename T>
+ class MyTemplate {};
- extern template class MyTemplate<bool>;
- )cc",
- ""));
+ extern template class MyTemplate<bool>;
- ASSERT_THAT(instantiations, IsEmpty());
+ template <typename T>
+ class ExpectedTemplate {};
+ )cc",
+ "cc_template!{ExpectedTemplate<bool>}"));
+
+ ASSERT_THAT(instantiations,
+ ElementsAre(Pair("ExpectedTemplate<bool>",
+ "__CcTemplateInst16ExpectedTemplateIbE")));
}
-// This test only documents *currently* expected behavior, but don't take is as
-// a requirement that we put all explicit class template instantiation defitions
-// into the JSON file. Only the instantiations triggered by `cc_template!` are
-// required to appear there. For example we may decide in the future to not
-// import instantiations that are not requested from `cc_template!` and then
-// this test could be safely deleted.
TEST(GenerateBindingsAndMetadataTest,
- InstantiationsGeneratedForExplicitClassTemplateInstantiationDefinitions) {
- ASSERT_OK_AND_ASSIGN(auto instantiations, GetInstantiationsFor(
- R"cc(
- template <typename T>
- class MyTemplate {
- T t;
- };
+ ExplicitClassTemplateInstantiationDefinitionsNotPresentInInstantiations) {
+ ASSERT_OK_AND_ASSIGN(auto instantiations,
+ GetInstantiationsFor(
+ R"cc(
+ template <typename T>
+ class MyTemplate {};
- template class MyTemplate<bool>;
+ template class MyTemplate<bool>;
- using MyTypeAlias = MyTemplate<bool>;
- )cc",
- ""));
+ template <typename T>
+ class ExpectedTemplate {};
+ )cc",
+ "cc_template!{ExpectedTemplate<bool>}"));
- ASSERT_THAT(
- instantiations,
- ElementsAre(Pair("MyTemplate<bool>", "__CcTemplateInst10MyTemplateIbE")));
+ ASSERT_THAT(instantiations,
+ ElementsAre(Pair("ExpectedTemplate<bool>",
+ "__CcTemplateInst16ExpectedTemplateIbE")));
+}
+
+TEST(GenerateBindingsAndMetadataTest,
+ RegularRecordsNotPresentInInstantiations) {
+ ASSERT_OK_AND_ASSIGN(auto instantiations,
+ GetInstantiationsFor(
+ R"cc(
+ struct MyStruct {};
+
+ template <typename T>
+ class ExpectedTemplate {};
+ )cc",
+ "cc_template!{ExpectedTemplate<bool>}"));
+
+ ASSERT_THAT(instantiations,
+ ElementsAre(Pair("ExpectedTemplate<bool>",
+ "__CcTemplateInst16ExpectedTemplateIbE")));
+}
+
+TEST(GenerateBindingsAndMetadataTest,
+ InstantiationsAreGeneratedForCcTemplateMacro) {
+ ASSERT_OK_AND_ASSIGN(auto instantiations,
+ GetInstantiationsFor(
+ R"cc(
+ template <typename T>
+ class ExpectedTemplate {};
+ )cc",
+ "cc_template!{ExpectedTemplate<bool>}"));
+
+ ASSERT_THAT(instantiations,
+ ElementsAre(Pair("ExpectedTemplate<bool>",
+ "__CcTemplateInst16ExpectedTemplateIbE")));
}
TEST(GenerateBindingsAndMetadataTest, NamespacesJsonGenerated) {
