mirror of
https://github.com/pezkuwichain/pezkuwi-subxt.git
synced 2026-06-28 12:07:28 +00:00
Sergei Shulepov
b2a6ad0553
* Establish the runtime_blob module Seed it with the existing contents of the `util` module. * Port wasmtime mutable globals instrumentation into runtime blob APIs * Opt-out from fast instance reuse * Minor clean up * Spaces * Docs clean up * Apply suggestions from code review Co-authored-by: Bastian Köcher <bkchr@users.noreply.github.com> * Factor out the expects * Fix the suggestion Co-authored-by: Bastian Köcher <bkchr@users.noreply.github.com>
56 lines
2.0 KiB
Rust
56 lines
2.0 KiB
Rust
// This file is part of Substrate.
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// Copyright (C) 2020-2021 Parity Technologies (UK) Ltd.
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// SPDX-License-Identifier: GPL-3.0-or-later WITH Classpath-exception-2.0
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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// You should have received a copy of the GNU General Public License
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// along with this program. If not, see <https://www.gnu.org/licenses/>.
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use std::ops::Range;
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use sp_wasm_interface::Value;
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/// Construct a range from an offset to a data length after the offset.
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/// Returns None if the end of the range would exceed some maximum offset.
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pub fn checked_range(offset: usize, len: usize, max: usize) -> Option<Range<usize>> {
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let end = offset.checked_add(len)?;
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if end <= max {
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Some(offset..end)
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} else {
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None
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}
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}
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/// Converts a [`wasmtime::Val`] into a substrate runtime interface [`Value`].
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///
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/// Panics if the given value doesn't have a corresponding variant in `Value`.
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pub fn from_wasmtime_val(val: wasmtime::Val) -> Value {
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match val {
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wasmtime::Val::I32(v) => Value::I32(v),
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wasmtime::Val::I64(v) => Value::I64(v),
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wasmtime::Val::F32(f_bits) => Value::F32(f_bits),
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wasmtime::Val::F64(f_bits) => Value::F64(f_bits),
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v => panic!("Given value type is unsupported by Substrate: {:?}", v),
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}
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}
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/// Converts a sp_wasm_interface's [`Value`] into the corresponding variant in wasmtime's [`wasmtime::Val`].
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pub fn into_wasmtime_val(value: Value) -> wasmtime::Val {
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match value {
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Value::I32(v) => wasmtime::Val::I32(v),
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Value::I64(v) => wasmtime::Val::I64(v),
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Value::F32(f_bits) => wasmtime::Val::F32(f_bits),
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Value::F64(f_bits) => wasmtime::Val::F64(f_bits),
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}
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}
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