Fix cycle dependency in sp-runtime-interface (#4353)

* Fix cycle dependency in `sp-runtime-interface`

* Fixes tests

substrate/primitives/runtime-interface/tests/ui.rs

@@ -0,0 +1,27 @@
+// Copyright 2019 Parity Technologies (UK) Ltd.
+// This file is part of Substrate.
+
+// Substrate is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+
+// Substrate is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License
+// along with Substrate.  If not, see <http://www.gnu.org/licenses/>.
+
+use std::env;
+
+#[rustversion::attr(not(stable), ignore)]
+#[test]
+fn ui() {
+	// As trybuild is using `cargo check`, we don't need the real WASM binaries.
+	env::set_var("BUILD_DUMMY_WASM_BINARY", "1");
+
+	let t = trybuild::TestCases::new();
+	t.compile_fail("tests/ui/*.rs");
+}

substrate/primitives/runtime-interface/tests/ui/no_generic_parameters.rs

@@ -0,0 +1,8 @@
+use sp_runtime_interface::runtime_interface;
+
+#[runtime_interface]
+trait Test<T> {
+	fn test<R>() {}
+}
+
+fn main() {}

substrate/primitives/runtime-interface/tests/ui/no_generic_parameters.stderr

@@ -0,0 +1,11 @@
+error: Generic parameters not supported.
+ --> $DIR/no_generic_parameters.rs:5:10
+  |
+5 |     fn test<R>() {}
+  |             ^
+
+error: Generic parameters not supported.
+ --> $DIR/no_generic_parameters.rs:4:12
+  |
+4 | trait Test<T> {
+  |            ^

substrate/primitives/runtime-interface/tests/ui/no_method_implementation.rs

@@ -0,0 +1,8 @@
+use sp_runtime_interface::runtime_interface;
+
+#[runtime_interface]
+trait Test {
+	fn test();
+}
+
+fn main() {}

substrate/primitives/runtime-interface/tests/ui/no_method_implementation.stderr

@@ -0,0 +1,5 @@
+error: Methods need to have an implementation.
+ --> $DIR/no_method_implementation.rs:5:2
+  |
+5 |     fn test();
+  |     ^^

substrate/primitives/runtime-interface/tests/ui/pass_by_enum_with_struct.rs

@@ -0,0 +1,6 @@
+use sp_runtime_interface::pass_by::PassByEnum;
+
+#[derive(PassByEnum)]
+struct Test;
+
+fn main() {}

substrate/primitives/runtime-interface/tests/ui/pass_by_enum_with_struct.stderr

@@ -0,0 +1,5 @@
+error: `PassByEnum` only supports enums as input type.
+ --> $DIR/pass_by_enum_with_struct.rs:3:10
+  |
+3 | #[derive(PassByEnum)]
+  |          ^^^^^^^^^^

substrate/primitives/runtime-interface/tests/ui/pass_by_enum_with_value_variant.rs

@@ -0,0 +1,8 @@
+use sp_runtime_interface::pass_by::PassByEnum;
+
+#[derive(PassByEnum)]
+enum Test {
+	Var0(u32),
+}
+
+fn main() {}

substrate/primitives/runtime-interface/tests/ui/pass_by_enum_with_value_variant.stderr

@@ -0,0 +1,5 @@
+error: `PassByEnum` only supports unit variants.
+ --> $DIR/pass_by_enum_with_value_variant.rs:3:10
+  |
+3 | #[derive(PassByEnum)]
+  |          ^^^^^^^^^^

substrate/primitives/runtime-interface/tests/ui/pass_by_inner_with_two_fields.rs

@@ -0,0 +1,9 @@
+use sp_runtime_interface::pass_by::PassByInner;
+
+#[derive(PassByInner)]
+struct Test {
+	data: u32,
+	data2: u32,
+}
+
+fn main() {}

substrate/primitives/runtime-interface/tests/ui/pass_by_inner_with_two_fields.stderr

@@ -0,0 +1,5 @@
+error: Only newtype/one field structs are supported by `PassByInner`!
+ --> $DIR/pass_by_inner_with_two_fields.rs:3:10
+  |
+3 | #[derive(PassByInner)]
+  |          ^^^^^^^^^^^

substrate/primitives/runtime-interface/tests/ui/take_self_by_value.rs

@@ -0,0 +1,8 @@
+use sp_runtime_interface::runtime_interface;
+
+#[runtime_interface]
+trait Test {
+	fn test(self) {}
+}
+
+fn main() {}

substrate/primitives/runtime-interface/tests/ui/take_self_by_value.stderr

@@ -0,0 +1,5 @@
+error: Taking `Self` by value is not allowed.
+ --> $DIR/take_self_by_value.rs:5:10
+  |
+5 |     fn test(self) {}
+  |             ^^^^