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Refactor the runtime API to use traits. (#878)

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* Add missing `As` imports.

* Adds new API traits that will be used by the client and runtime

* Switch consensus to new API's

* Switches transaction-pool to new API's

* Move runtime api stuff into its own crate

* Adds `impl_apis!` macro for implementing the new API traits

* Make `metadata` return directly a blob

* Runtime replace `impl_stubs!` with `impl_apis!`

* Switches to none feature based approach for declaring the different API traits

* Fixes compilation error

* Fixes errors

* Make the `decl_apis!` trait usable from the outside

* Make the `test-client` use the new API traits

* Remove last `impl_stubs!` bits and move some of them into wasm executor for tests

* A little bit more documentation
This commit is contained in:
Bastian Köcher
2018-10-09 10:58:29 +02:00
committed by Gav Wood
parent fb058ae235
commit 2c65ad6c7b
25 changed files with 1058 additions and 256 deletions
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substrate/core/sr-io/without_std.rs
-57
View File
@@ -285,60 +285,3 @@ impl Printable for u64 {
pub fn print<T: Printable + Sized>(value: T) {
value.print();
}
#[macro_export]
macro_rules! impl_stubs {
( $( $new_name:ident $($nodecode:ident)* => $invoke:expr ),* ) => {
$(
impl_stubs!(@METHOD $new_name $($nodecode)* => $invoke);
)*
};
( @METHOD $new_name:ident NO_DECODE => $invoke:expr ) => {
#[no_mangle]
pub fn $new_name(input_data: *mut u8, input_len: usize) -> u64 {
let input: &[u8] = if input_len == 0 {
&[0u8; 0]
} else {
unsafe {
$crate::slice::from_raw_parts(input_data, input_len)
}
};
let output: $crate::rstd::vec::Vec<u8> = $invoke(input);
let res = output.as_ptr() as u64 + ((output.len() as u64) << 32);
// Leak the output vector to avoid it being freed.
// This is fine in a WASM context since the heap
// will be discarded after the call.
::core::mem::forget(output);
res
}
};
( @METHOD $new_name:ident => $invoke:expr ) => {
#[no_mangle]
pub fn $new_name(input_data: *mut u8, input_len: usize) -> u64 {
let mut input = if input_len == 0 {
&[0u8; 0]
} else {
unsafe {
$crate::slice::from_raw_parts(input_data, input_len)
}
};
let input = match $crate::codec::Decode::decode(&mut input) {
Some(input) => input,
None => panic!("Bad input data provided to {}", stringify!($name)),
};
let output = ($invoke)(input);
let output = $crate::codec::Encode::encode(&output);
let res = output.as_ptr() as u64 + ((output.len() as u64) << 32);
// Leak the output vector to avoid it being freed.
// This is fine in a WASM context since the heap
// will be discarded after the call.
::core::mem::forget(output);
res
}
}
}