github.com/jeffallen/go-ethereum@v1.1.4-0.20150910155051-571d3236c49c/core/vm/errors.go (about)

     1  // Copyright 2014 The go-ethereum Authors
     2  // This file is part of the go-ethereum library.
     3  //
     4  // The go-ethereum library is free software: you can redistribute it and/or modify
     5  // it under the terms of the GNU Lesser General Public License as published by
     6  // the Free Software Foundation, either version 3 of the License, or
     7  // (at your option) any later version.
     8  //
     9  // The go-ethereum library is distributed in the hope that it will be useful,
    10  // but WITHOUT ANY WARRANTY; without even the implied warranty of
    11  // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
    12  // GNU Lesser General Public License for more details.
    13  //
    14  // You should have received a copy of the GNU Lesser General Public License
    15  // along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
    16  
    17  package vm
    18  
    19  import (
    20  	"errors"
    21  	"fmt"
    22  
    23  	"github.com/ethereum/go-ethereum/params"
    24  )
    25  
    26  var OutOfGasError = errors.New("Out of gas")
    27  var DepthError = fmt.Errorf("Max call depth exceeded (%d)", params.CallCreateDepth)
    28  
    29  type StackError struct {
    30  	req, has int
    31  }
    32  
    33  func StackErr(req, has int) StackError {
    34  	return StackError{req, has}
    35  }
    36  
    37  func (self StackError) Error() string {
    38  	return fmt.Sprintf("stack error! require %v, have %v", self.req, self.has)
    39  }
    40  
    41  func IsStackErr(err error) bool {
    42  	_, ok := err.(StackError)
    43  	return ok
    44  }