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ton/crypto/vm/excno.hpp
2019-09-07 14:33:36 +04:00

99 lines
2.3 KiB
C++

/*
This file is part of TON Blockchain Library.
TON Blockchain 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 2 of the License, or
(at your option) any later version.
TON Blockchain 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 TON Blockchain Library. If not, see <http://www.gnu.org/licenses/>.
Copyright 2017-2019 Telegram Systems LLP
*/
#pragma once
namespace vm {
enum class Excno : int {
none = 0,
alt = 1,
stk_und = 2,
stk_ov = 3,
int_ov = 4,
range_chk = 5,
inv_opcode = 6,
type_chk = 7,
cell_ov = 8,
cell_und = 9,
dict_err = 10,
unknown = 11,
fatal = 12,
out_of_gas = 13,
virt_err = 14,
total
};
const char* get_exception_msg(Excno exc_no);
class VmError {
Excno exc_no;
const char* msg;
long long arg;
public:
VmError(Excno _excno, const char* _msg) : exc_no(_excno), msg(_msg), arg(0) {
}
VmError(Excno _excno) : exc_no(_excno), msg(0), arg(0) {
}
VmError(Excno _excno, const char* _msg, long long _arg) : exc_no(_excno), msg(_msg), arg(_arg) {
}
int get_errno() const {
return static_cast<int>(exc_no);
}
const char* get_msg() const {
return msg ? msg : get_exception_msg(exc_no);
}
long long get_arg() const {
return arg;
}
};
struct VmNoGas {
VmNoGas() = default;
int get_errno() const {
return static_cast<int>(Excno::out_of_gas);
}
const char* get_msg() const {
return "out of gas";
}
operator VmError() const {
return VmError{Excno::out_of_gas, "out of gas"};
}
};
struct VmVirtError {
int virtualization{0};
VmVirtError() = default;
VmVirtError(int virtualization) : virtualization(virtualization) {
}
int get_errno() const {
return static_cast<int>(Excno::virt_err);
}
const char* get_msg() const {
return "prunned branch";
}
operator VmError() const {
return VmError{Excno::virt_err, "prunned branch", virtualization};
}
};
struct VmFatal {};
} // namespace vm