Coverage Summary for Class: MessageCall (org.ethereum.vm)
Class |
Method, %
|
Line, %
|
MessageCall |
0%
(0/10)
|
0%
(0/18)
|
MessageCall$1 |
0%
(0/1)
|
0%
(0/1)
|
MessageCall$MsgType |
0%
(0/3)
|
0%
(0/13)
|
Total |
0%
(0/14)
|
0%
(0/32)
|
1 /*
2 * This file is part of RskJ
3 * Copyright (C) 2017 RSK Labs Ltd.
4 * (derived from ethereumJ library, Copyright (c) 2016 <ether.camp>)
5 *
6 * This program is free software: you can redistribute it and/or modify
7 * it under the terms of the GNU Lesser General Public License as published by
8 * the Free Software Foundation, either version 3 of the License, or
9 * (at your option) any later version.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU Lesser General Public License for more details.
15 *
16 * You should have received a copy of the GNU Lesser General Public License
17 * along with this program. If not, see <http://www.gnu.org/licenses/>.
18 */
19
20
21 package org.ethereum.vm;
22
23 /**
24 * A wrapper for a message call from a contract to another account.
25 * This can either be a normal CALL, CALLCODE, DELEGATECALL or POST call.
26 */
27 public class MessageCall {
28
29 public enum MsgType {
30 CALL,
31 CALLCODE,
32 DELEGATECALL,
33 STATICCALL,
34 POST;
35
36 /**
37 * Indicates that the code is executed in the context of the caller
38 */
39 public boolean isStateless() {
40 return this == CALLCODE || this == DELEGATECALL;
41 }
42
43 public static MsgType fromOpcode(OpCode opCode) {
44 switch (opCode) {
45 case CALL: return CALL;
46 case CALLCODE: return CALLCODE;
47 case DELEGATECALL: return DELEGATECALL;
48 case STATICCALL: return STATICCALL;
49 default:
50 throw new RuntimeException("Invalid call opcode: " + opCode);
51 }
52 }
53 }
54
55 /**
56 * Type of internal call. Either CALL, CALLCODE or POST
57 */
58 private final MsgType type;
59
60 /**
61 * gas to pay for the call, remaining gas will be refunded to the caller
62 */
63 private final DataWord gas;
64 /**
65 * address of account which code to call
66 */
67 private final DataWord codeAddress;
68 /**
69 * the value that can be transfer along with the code execution
70 */
71 private final DataWord endowment;
72 /**
73 * start of memory to be input data to the call
74 */
75 private final DataWord inDataOffs;
76 /**
77 * size of memory to be input data to the call
78 */
79 private final DataWord inDataSize;
80 /**
81 * start of memory to be output of the call
82 */
83 private DataWord outDataOffs;
84 /**
85 * size of memory to be output data to the call
86 */
87 private DataWord outDataSize;
88
89 public MessageCall(MsgType type, DataWord gas, DataWord codeAddress,
90 DataWord endowment, DataWord inDataOffs, DataWord inDataSize) {
91 this.type = type;
92 this.gas = gas;
93 this.codeAddress = codeAddress;
94 this.endowment = endowment;
95 this.inDataOffs = inDataOffs;
96 this.inDataSize = inDataSize;
97 }
98
99 public MessageCall(MsgType type, DataWord gas, DataWord codeAddress,
100 DataWord endowment, DataWord inDataOffs, DataWord inDataSize,
101 DataWord outDataOffs, DataWord outDataSize) {
102 this(type, gas, codeAddress, endowment, inDataOffs, inDataSize);
103 this.outDataOffs = outDataOffs;
104 this.outDataSize = outDataSize;
105 }
106
107 public MsgType getType() {
108 return type;
109 }
110
111 public DataWord getGas() {
112 return gas;
113 }
114
115 public DataWord getCodeAddress() {
116 return codeAddress;
117 }
118
119 public DataWord getEndowment() {
120 return endowment;
121 }
122
123 public DataWord getInDataOffs() {
124 return inDataOffs;
125 }
126
127 public DataWord getInDataSize() {
128 return inDataSize;
129 }
130
131 public DataWord getOutDataOffs() {
132 return outDataOffs;
133 }
134
135 public DataWord getOutDataSize() {
136 return outDataSize;
137 }
138 }