github.com/cgcardona/r-subnet-evm@v0.1.5/consensus/errors.go (about)

     1  // (c) 2019-2020, Ava Labs, Inc.
     2  //
     3  // This file is a derived work, based on the go-ethereum library whose original
     4  // notices appear below.
     5  //
     6  // It is distributed under a license compatible with the licensing terms of the
     7  // original code from which it is derived.
     8  //
     9  // Much love to the original authors for their work.
    10  // **********
    11  // Copyright 2017 The go-ethereum Authors
    12  // This file is part of the go-ethereum library.
    13  //
    14  // The go-ethereum library is free software: you can redistribute it and/or modify
    15  // it under the terms of the GNU Lesser General Public License as published by
    16  // the Free Software Foundation, either version 3 of the License, or
    17  // (at your option) any later version.
    18  //
    19  // The go-ethereum library is distributed in the hope that it will be useful,
    20  // but WITHOUT ANY WARRANTY; without even the implied warranty of
    21  // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
    22  // GNU Lesser General Public License for more details.
    23  //
    24  // You should have received a copy of the GNU Lesser General Public License
    25  // along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
    26  
    27  package consensus
    28  
    29  import "errors"
    30  
    31  var (
    32  	// ErrUnknownAncestor is returned when validating a block requires an ancestor
    33  	// that is unknown.
    34  	ErrUnknownAncestor = errors.New("unknown ancestor")
    35  
    36  	// ErrPrunedAncestor is returned when validating a block requires an ancestor
    37  	// that is known, but the state of which is not available.
    38  	ErrPrunedAncestor = errors.New("pruned ancestor")
    39  
    40  	// ErrFutureBlock is returned when a block's timestamp is in the future according
    41  	// to the current node.
    42  	ErrFutureBlock = errors.New("block in the future")
    43  
    44  	// ErrInvalidNumber is returned if a block's number doesn't equal its parent's
    45  	// plus one.
    46  	ErrInvalidNumber = errors.New("invalid block number")
    47  )