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Make API backwards compatible with CC (#1697)

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* Rework how a runtime api calls into the runtime

Now we generate a default implementation for each api call that calls
a generated method `method_runtime_api_impl`. This newly generated
method is the one that will be implemented by the `impl_runtime_apis`
macro in the runtime for the client side.

* Support `changed_in` to change runtime api function signatures

* Update documentation

* Fixes tests

* Implement checking the api version with a predicate

* Make the implementation backwards compatible with CC

* Update wasm files after merge

* Check for wasm runtime differences by building master and current branch

* Update spec_version and wasm files

* Fixes

* Revert my changes

* Remove `patch.crates-io` from test-runtime
This commit is contained in:
Bastian Köcher
2019-02-06 11:47:47 +01:00
committed by Gav Wood
parent 1ba7e35c18
commit 190393d476
25 changed files with 731 additions and 224 deletions
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substrate/core/sr-api-macros/src/utils.rs
+5
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@@ -58,6 +58,11 @@ pub fn generate_runtime_mod_name_for_trait(trait_: &Ident) -> Ident {
Ident::new(&format!("runtime_decl_for_{}", trait_.to_string()), Span::call_site())
}
/// Generates a name for a method that needs to be implemented in the runtime for the client side.
pub fn generate_method_runtime_api_impl_name(method: &Ident) -> Ident {
Ident::new(&format!("{}_runtime_api_impl", method.to_string()), Span::call_site())
}
/// Get the type of a `syn::ReturnType`.
pub fn return_type_extract_type(rt: &syn::ReturnType) -> Type {
match rt {