Versioning for #[runtime-interface] (#5328)

* versionned runtime-interface

* use only one additional wasm blob

* alter docs

* formatting, naming and docs

* add comment for test

* version duplicate err

* RuntimeInterfaceItem -> RuntimeInterfaceFunction<

* test naming

* version checking

* remove spaces

* Update primitives/runtime-interface/proc-macro/src/runtime_interface/bare_function_interface.rs

Co-Authored-By: Bastian Köcher <bkchr@users.noreply.github.com>

* remove sanity checks and reduce coverage

* add doc comment

Co-authored-by: Bastian Köcher <bkchr@users.noreply.github.com>

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

@@ -0,0 +1,11 @@
+use sp_runtime_interface::runtime_interface;
+
+#[runtime_interface]
+trait Test {
+	#[version(2)]
+	fn test() { }
+	#[version(2)]
+	fn test() { }
+}
+
+fn main() {}

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

@@ -0,0 +1,11 @@
+error: Duplicated version attribute
+ --> $DIR/no_duplicate_versions.rs:7:2
+  |
+7 |     #[version(2)]
+  |     ^
+
+error: Previous version with the same number defined here
+ --> $DIR/no_duplicate_versions.rs:5:2
+  |
+5 |     #[version(2)]
+  |     ^

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

@@ -0,0 +1,17 @@
+use sp_runtime_interface::runtime_interface;
+
+#[runtime_interface]
+trait Test {
+	#[version(1)]
+	fn test2() {}
+	#[version(2)]
+	fn test2() {}
+	#[version(3)]
+	fn test2() {}
+
+	fn test() { }
+	#[version(3)]
+	fn test() { }
+}
+
+fn main() {}

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

@@ -0,0 +1,5 @@
+error: Unexpected version attribute: missing version '2' for this function
+  --> $DIR/no_gaps_in_versions.rs:13:2
+   |
+13 |     #[version(3)]
+   |     ^

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

@@ -1,11 +0,0 @@
-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_generic_parameters_method.rs

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

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

@@ -0,0 +1,5 @@
+error: Generic parameters not supported.
+ --> $DIR/no_generic_parameters_method.rs:5:10
+  |
+5 |     fn test<T>() {}
+  |             ^

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

@@ -2,7 +2,7 @@ use sp_runtime_interface::runtime_interface;
 
 #[runtime_interface]
 trait Test<T> {
-	fn test<R>() {}
+	fn test() {}
 }
 
 fn main() {}

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

@@ -0,0 +1,5 @@
+error: Generic parameters not supported.
+ --> $DIR/no_generic_parameters_trait.rs:4:12
+  |
+4 | trait Test<T> {
+  |            ^