28 lines
1.1 KiB
Rust
28 lines
1.1 KiB
Rust
// Copyright 2015-2017 Parity Technologies (UK) Ltd.
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// This file is part of Parity.
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// Parity 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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// Parity 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 Parity. If not, see <http://www.gnu.org/licenses/>.
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use std::sync::{Arc, Weak};
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use ethcore::account_provider::AccountProvider;
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use jsonrpc_core::Error;
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use v1::helpers::errors;
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pub fn unwrap_provider(provider: &Option<Weak<AccountProvider>>) -> Result<Arc<AccountProvider>, Error> {
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match *provider {
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Some(ref weak) => weak.upgrade().ok_or_else(Error::internal_error),
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None => Err(errors::public_unsupported(None)),
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}
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}
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