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Implements mocking of runtime apis (#5448)

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* Implements mocking of runtime apis

This pr adds support for easily mock runtime api implementations for
tests by using the `mock_impl_runtime_apis!` macro. The syntax is
similar to `impl_runtime_apis!`. The mocked implementation automatically
implements `ApiExt`, `ApiErrorExt` and `Core` as these are required by
the runtime api traits, but not required in tests or only a subset of them.

* Fix warnings

* Update primitives/api/proc-macro/src/utils.rs

Co-Authored-By: Nikolay Volf <nikvolf@gmail.com>

* Review feedback

Co-authored-by: Nikolay Volf <nikvolf@gmail.com>
This commit is contained in:
Bastian Köcher
2020-03-31 13:46:07 +02:00
committed by GitHub
parent b4d83a4b54
commit 954dca689d
19 changed files with 899 additions and 258 deletions
Download Patch File Download Diff File Expand all files Collapse all files
substrate/primitives/api/proc-macro/src/decl_runtime_apis.rs
+11 -5
View File
@@ -19,7 +19,7 @@ use crate::utils::{
fold_fn_decl_for_client_side, extract_parameter_names_types_and_borrows,
generate_native_call_generator_fn_name, return_type_extract_type,
generate_method_runtime_api_impl_name, generate_call_api_at_fn_name, prefix_function_with_trait,
replace_wild_card_parameter_names,
replace_wild_card_parameter_names, AllowSelfRefInParameters,
};
use proc_macro2::{TokenStream, Span};
@@ -198,7 +198,7 @@ fn generate_native_call_generators(decl: &ItemTrait) -> Result<TokenStream> {
// Generate a native call generator for each function of the given trait.
for fn_ in fns {
let params = extract_parameter_names_types_and_borrows(&fn_)?;
let params = extract_parameter_names_types_and_borrows(&fn_, AllowSelfRefInParameters::No)?;
let trait_fn_name = &fn_.ident;
let fn_name = generate_native_call_generator_fn_name(&fn_.ident);
let output = return_type_replace_block_with_node_block(fn_.output.clone());
@@ -592,7 +592,10 @@ impl<'a> ToClientSideDecl<'a> {
// Get types and if the value is borrowed from all parameters.
// If there is an error, we push it as the block to the user.
let param_types = match extract_parameter_names_types_and_borrows(fn_sig) {
let param_types = match extract_parameter_names_types_and_borrows(
fn_sig,
AllowSelfRefInParameters::No,
) {
Ok(res) => res.into_iter().map(|v| {
let ty = v.1;
let borrow = v.2;
@@ -629,7 +632,10 @@ impl<'a> ToClientSideDecl<'a> {
mut method: TraitItemMethod,
context: TokenStream,
) -> TraitItemMethod {
let params = match extract_parameter_names_types_and_borrows(&method.sig) {
let params = match extract_parameter_names_types_and_borrows(
&method.sig,
AllowSelfRefInParameters::No,
) {
Ok(res) => res.into_iter().map(|v| v.0).collect::<Vec<_>>(),
Err(e) => {
self.errors.push(e.to_compile_error());
@@ -780,7 +786,7 @@ fn generate_runtime_api_id(trait_name: &str) -> TokenStream {
let mut res = [0; 8];
res.copy_from_slice(blake2_rfc::blake2b::blake2b(8, &[], trait_name.as_bytes()).as_bytes());
quote!( const ID: [u8; 8] = [ #( #res ),* ]; )
quote!( const ID: [u8; 8] = [ #( #res ),* ]; )
}
/// Generates the const variable that holds the runtime api version.