git ssb

1
const U256 = require('./u256.js')
2
const Address = require('./address.js')
3
const Block = require('./block.js')
4
const fakeBlockChain = require('./fakeBlockChain.js')
5
6
module.exports = class Environment {
7
  constructor (data) {
8
    const defaults = {
9
      block: new Block(),
10
      blockchain: fakeBlockChain,
11
      // gas tank
12
      gasPrice: 0,
13
      gasLeft: 1000000,
14
      gasRefund: 0,
15
      // call infromation
16
      address: new Address('0x0000000000000000000000000000000000000000'),
17
      origin: new Address('0x0000000000000000000000000000000000000000'),
18
      caller: new Address('0x0000000000000000000000000000000000000000'),
19
      callValue: new U256(0),
20
      callData: new Uint8Array(),
21
      // the ROM
22
      code: new Uint8Array(), // the current running code
23
      // output calls
24
      logs: [],
25
      selfDestructAddress: new Address('0x0000000000000000000000000000000000000000'),
26
      // more output calls
27
      returnValue: new Uint8Array()
28
    }
29
30
    this.state = new Map()
31
32
    Object.assign(this, defaults, data || {})
33
  }
34
35
  addAccount (address, trie) {
36
    let account = new Map()
37
    account.set('nonce', trie.nonce || new U256(0))
38
    account.set('balance', trie.balance || new U256(0))
39
    account.set('code', trie.code || new Uint8Array())
40
    account.set('storage', trie.storage || new Map())
41
    this.state.set(address.toString(), account)
42
  }
43
44
  getBalance (address) {
45
    return this.state.get(address.toString())['balance']
46
  }
47
48
  getCode (address) {
49
    return this.state.get(address.toString())['code']
50
  }
51
52
  getBlockHash (height) {
53
    return this.blockchain.getBlock(height).hash()
54
  }
55
56
  // kernal
57
  create (code, value) {
58
    // STUB
59
  }
60
61
  call (gas, address, value, data) {
62
    // STUB
63
    return // result
64
  }
65
66
  callCode (gas, address, value, data) {
67
    // STUB
68
    return // result
69
  }
70
71
  delegateCall (gas, address, data) {
72
    // STUB
73
    return // result
74
  }
75
}
76