gp_wasm_interface_common/
wasmi_impl.rs

1// This file is part of Substrate.
2
3// Copyright (C) Parity Technologies (UK) Ltd.
4// SPDX-License-Identifier: Apache-2.0
5
6// Licensed under the Apache License, Version 2.0 (the "License");
7// you may not use this file except in compliance with the License.
8// You may obtain a copy of the License at
9//
10// 	http://www.apache.org/licenses/LICENSE-2.0
11//
12// Unless required by applicable law or agreed to in writing, software
13// distributed under the License is distributed on an "AS IS" BASIS,
14// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15// See the License for the specific language governing permissions and
16// limitations under the License.
17
18//! Implementation of conversions between Substrate and wasmi types.
19use crate::{Signature, Value, ValueType};
20use sp_std::vec::Vec;
21
22impl From<Value> for wasmi::RuntimeValue {
23	fn from(value: Value) -> Self {
24		match value {
25			Value::I32(val) => Self::I32(val),
26			Value::I64(val) => Self::I64(val),
27			Value::F32(val) => Self::F32(val.into()),
28			Value::F64(val) => Self::F64(val.into()),
29		}
30	}
31}
32
33impl From<wasmi::RuntimeValue> for Value {
34	fn from(value: wasmi::RuntimeValue) -> Self {
35		match value {
36			wasmi::RuntimeValue::I32(val) => Self::I32(val),
37			wasmi::RuntimeValue::I64(val) => Self::I64(val),
38			wasmi::RuntimeValue::F32(val) => Self::F32(val.into()),
39			wasmi::RuntimeValue::F64(val) => Self::F64(val.into()),
40		}
41	}
42}
43
44impl From<ValueType> for wasmi::ValueType {
45	fn from(value: ValueType) -> Self {
46		match value {
47			ValueType::I32 => Self::I32,
48			ValueType::I64 => Self::I64,
49			ValueType::F32 => Self::F32,
50			ValueType::F64 => Self::F64,
51		}
52	}
53}
54
55impl From<wasmi::ValueType> for ValueType {
56	fn from(value: wasmi::ValueType) -> Self {
57		match value {
58			wasmi::ValueType::I32 => Self::I32,
59			wasmi::ValueType::I64 => Self::I64,
60			wasmi::ValueType::F32 => Self::F32,
61			wasmi::ValueType::F64 => Self::F64,
62		}
63	}
64}
65
66impl From<Signature> for wasmi::Signature {
67	fn from(sig: Signature) -> Self {
68		let args = sig.args.iter().map(|a| (*a).into()).collect::<Vec<_>>();
69		wasmi::Signature::new(args, sig.return_value.map(Into::into))
70	}
71}
72
73impl From<&wasmi::Signature> for Signature {
74	fn from(sig: &wasmi::Signature) -> Self {
75		Signature::new(
76			sig.params().iter().copied().map(Into::into).collect::<Vec<_>>(),
77			sig.return_type().map(Into::into),
78		)
79	}
80}
gp_wasm_interface_common/wasmi_impl.rs

gp_wasm_interface_common/
wasmi_impl.rs
