mirror of
https://github.com/pezkuwichain/pezkuwi-subxt.git
synced 2026-06-14 00:31:07 +00:00
Alexander Theißen
1f911ddb61
* Allow contract callable functions to specify the module * Add new version of `seal_random` * Fix overlong lines * Fix benchmarking code * Update README.md * Replace Module by Pallet
88 lines
2.4 KiB
Rust
88 lines
2.4 KiB
Rust
// This file is part of Substrate.
|
|
|
|
// Copyright (C) 2018-2021 Parity Technologies (UK) Ltd.
|
|
// SPDX-License-Identifier: Apache-2.0
|
|
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
//
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
|
|
use super::Runtime;
|
|
use crate::exec::Ext;
|
|
|
|
use sp_sandbox::Value;
|
|
use parity_wasm::elements::{FunctionType, ValueType};
|
|
|
|
#[macro_use]
|
|
pub mod macros;
|
|
|
|
pub trait ConvertibleToWasm: Sized {
|
|
const VALUE_TYPE: ValueType;
|
|
type NativeType;
|
|
fn to_typed_value(self) -> Value;
|
|
fn from_typed_value(_: Value) -> Option<Self>;
|
|
}
|
|
impl ConvertibleToWasm for i32 {
|
|
type NativeType = i32;
|
|
const VALUE_TYPE: ValueType = ValueType::I32;
|
|
fn to_typed_value(self) -> Value {
|
|
Value::I32(self)
|
|
}
|
|
fn from_typed_value(v: Value) -> Option<Self> {
|
|
v.as_i32()
|
|
}
|
|
}
|
|
impl ConvertibleToWasm for u32 {
|
|
type NativeType = u32;
|
|
const VALUE_TYPE: ValueType = ValueType::I32;
|
|
fn to_typed_value(self) -> Value {
|
|
Value::I32(self as i32)
|
|
}
|
|
fn from_typed_value(v: Value) -> Option<Self> {
|
|
match v {
|
|
Value::I32(v) => Some(v as u32),
|
|
_ => None,
|
|
}
|
|
}
|
|
}
|
|
impl ConvertibleToWasm for u64 {
|
|
type NativeType = u64;
|
|
const VALUE_TYPE: ValueType = ValueType::I64;
|
|
fn to_typed_value(self) -> Value {
|
|
Value::I64(self as i64)
|
|
}
|
|
fn from_typed_value(v: Value) -> Option<Self> {
|
|
match v {
|
|
Value::I64(v) => Some(v as u64),
|
|
_ => None,
|
|
}
|
|
}
|
|
}
|
|
|
|
pub type HostFunc<E> =
|
|
fn(
|
|
&mut Runtime<E>,
|
|
&[sp_sandbox::Value]
|
|
) -> Result<sp_sandbox::ReturnValue, sp_sandbox::HostError>;
|
|
|
|
pub trait FunctionImplProvider<E: Ext> {
|
|
fn impls<F: FnMut(&[u8], &[u8], HostFunc<E>)>(f: &mut F);
|
|
}
|
|
|
|
/// This trait can be used to check whether the host environment can satisfy
|
|
/// a requested function import.
|
|
pub trait ImportSatisfyCheck {
|
|
/// Returns `true` if the host environment contains a function with
|
|
/// the specified name and its type matches to the given type, or `false`
|
|
/// otherwise.
|
|
fn can_satisfy(module: &[u8], name: &[u8], func_type: &FunctionType) -> bool;
|
|
}
|