     1
     2
     3
     4
     5
     6
     7
     8
     9
    10
    11
    12
    13
    14
    15
    16
    17
    18
    19
    20
    21
    22
    23
    24
    25
    26
    27
    28
    29
    30
    31
    32
    33
    34
    35
    36
    37
    38
    39
    40
    41
    42
    43
    44
    45
    46
    47
    48
    49
    50
    51
    52
    53
    54
    55
    56
    57
    58
    59
    60
    61
    62
    63
    64

    // Copyright 2015-2017 Parity Technologies (UK) Ltd.
    // This file is part of Parity.

    // Parity is free software: you can redistribute it and/or modify
    // it under the terms of the GNU General Public License as published by
    // the Free Software Foundation, either version 3 of the License, or
    // (at your option) any later version.

    // Parity is distributed in the hope that it will be useful,
    // but WITHOUT ANY WARRANTY; without even the implied warranty of
    // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    // GNU General Public License for more details.

    // You should have received a copy of the GNU General Public License
    // along with Parity.  If not, see <http://www.gnu.org/licenses/>.

    use util::{Address, H256, Uint, U256, FixedHash};
    use util::sha3::SHA3_NULL_RLP;
    use ethjson;
    use super::seal::Seal;

    /// Genesis components.
    pub struct Genesis {
    	/// Seal.
    	pub seal: Seal,
    	/// Difficulty.
    	pub difficulty: U256,
    	/// Author.
    	pub author: Address,
    	/// Timestamp.
    	pub timestamp: u64,
    	/// Parent hash.
    	pub parent_hash: H256,
    	/// Gas limit.
    	pub gas_limit: U256,
    	/// Transactions root.
    	pub transactions_root: H256,
    	/// Receipts root.
    	pub receipts_root: H256,
    	/// State root.
    	pub state_root: Option<H256>,
    	/// Gas used.
    	pub gas_used: U256,
    	/// Extra data.
    	pub extra_data: Vec<u8>,
    }

    impl From<ethjson::spec::Genesis> for Genesis {
    	fn from(g: ethjson::spec::Genesis) -> Self {
    		Genesis {
    			seal: From::from(g.seal),
    			difficulty: g.difficulty.into(),
    			author: g.author.map_or_else(Address::zero, Into::into),
    			timestamp: g.timestamp.map_or(0, Into::into),
    			parent_hash: g.parent_hash.map_or_else(H256::zero, Into::into),
    			gas_limit: g.gas_limit.into(),
    			transactions_root: g.transactions_root.map_or_else(|| SHA3_NULL_RLP.clone(), Into::into),
    			receipts_root: g.receipts_root.map_or_else(|| SHA3_NULL_RLP.clone(), Into::into),
    			state_root: g.state_root.map(Into::into),
    			gas_used: g.gas_used.map_or_else(U256::zero, Into::into),
    			extra_data: g.extra_data.map_or_else(Vec::new, Into::into),
    		}
    	}
    }

# Help

## Keyboard Shortcuts

?
  Show this help dialog
S
  Focus the search field
⇤
  Move up in search results
⇥
  Move down in search results
⏎
  Go to active search result
+
  Collapse/expand all sections

## Search Tricks

Prefix searches with a type followed by a colon (e.g. `fn:`) to restrict the search to a given type.

Accepted types are: `fn`, `mod`, `struct`, `enum`, `trait`, `type`, `macro`, and `const`.

Search functions by type signature (e.g. `vec -> usize` or `* -> vec`)