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// Copyright 2014 The go-ethereum Authors
// This file is part of the go-ethereum library.
//
// The go-ethereum library is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// The go-ethereum library 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 Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
package vm
import (
"errors"
"fmt"
)
// List evm execution errors
var (
// ErrInvalidSubroutineEntry means that a BEGINSUB was reached via iteration,
// as opposed to from a JUMPSUB instruction
ErrInvalidSubroutineEntry = errors.New("invalid subroutine entry")
ErrOutOfGas = errors.New("out of gas")
ErrCodeStoreOutOfGas = errors.New("contract creation code storage out of gas")
ErrDepth = errors.New("max call depth exceeded")
ErrInsufficientBalance = errors.New("insufficient balance for transfer")
ErrIncompatibleAccount = errors.New("incompatible account")
ErrContractAddressCollision = errors.New("contract address collision")
ErrExecutionReverted = errors.New("execution reverted")
ErrMaxCodeSizeExceeded = errors.New("max code size exceeded")
ErrInvalidJump = errors.New("invalid jump destination")
ErrWriteProtection = errors.New("write protection")
ErrReturnDataOutOfBounds = errors.New("return data out of bounds")
ErrGasUintOverflow = errors.New("gas uint64 overflow")
ErrInvalidRetsub = errors.New("invalid retsub")
ErrReturnStackExceeded = errors.New("return stack limit reached")
)
// ErrStackUnderflow wraps an evm error when the items on the stack less
// than the minimal requirement.
type ErrStackUnderflow struct {
stackLen int
required int
}
func (e *ErrStackUnderflow) Error() string {
return fmt.Sprintf("stack underflow (%d <=> %d)", e.stackLen, e.required)
}
// ErrStackOverflow wraps an evm error when the items on the stack exceeds
// the maximum allowance.
type ErrStackOverflow struct {
stackLen int
limit int
}
func (e *ErrStackOverflow) Error() string {
return fmt.Sprintf("stack limit reached %d (%d)", e.stackLen, e.limit)
}
// ErrInvalidOpCode wraps an evm error when an invalid opcode is encountered.
type ErrInvalidOpCode struct {
opcode OpCode
}
func (e *ErrInvalidOpCode) Error() string { return fmt.Sprintf("invalid opcode: %s", e.opcode) }
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