add single execution context

src/app/debugger/debugger.js

@@ -3,7 +3,7 @@
 var remixDebugger = require('remix-debugger')
 var remixLib = require('remix-lib')
 var remixCore = require('remix-core')
-var executionContext = require('../execution/execution-context')
+var executionContext = require('../../execution-context')
 
 /**
  * Manage remix and source highlighting

src/app/execution/execution-context.js

-var remixLib = require('remix-lib')
-var executionContext = remixLib.execution.executionContext
-
-module.exports = executionContext

src/app/execution/txLogger.js

@@ -10,7 +10,7 @@ var styles = styleGuide.chooser()
 
 var EventManager = remixLib.EventManager
 var helper = require('../../lib/helper')
-var executionContext = require('./execution-context')
+var executionContext = require('../../execution-context')
 var modalDialog = require('../ui/modal-dialog-custom')
 var typeConversion = require('../../lib/typeConversion')
 

src/execution-context.js

-'use strict'
-
-var Web3 = require('web3')
 var remixLib = require('remix-lib')
-var EventManager = remixLib.EventManager
-var EthJSVM = require('ethereumjs-vm')
-var ethUtil = require('ethereumjs-util')
-var StateManager = require('ethereumjs-vm/lib/stateManager')
-var Web3VMProvider = remixLib.vm.Web3VMProvider
-var rlp = ethUtil.rlp
-
-var injectedProvider
-
-var web3
-if (typeof window.web3 !== 'undefined') {
-  injectedProvider = window.web3.currentProvider
-  web3 = new Web3(injectedProvider)
-} else {
-  web3 = new Web3(new Web3.providers.HttpProvider('http://localhost:8545'))
-}
-
-var blankWeb3 = new Web3()
-
-/*
-  extend vm state manager and instanciate VM
-*/
-
-class StateManagerCommonStorageDump extends StateManager {
-  constructor (arg) {
-    super(arg)
-    this.keyHashes = {}
-  }
-
-  putContractStorage (address, key, value, cb) {
-    this.keyHashes[ethUtil.sha3(key).toString('hex')] = ethUtil.bufferToHex(key)
-    super.putContractStorage(address, key, value, cb)
-  }
-
-  dumpStorage (address, cb) {
-    var self = this
-    this._getStorageTrie(address, function (err, trie) {
-      if (err) {
-        return cb(err)
-      }
-      var storage = {}
-      var stream = trie.createReadStream()
-      stream.on('data', function (val) {
-        var value = rlp.decode(val.value)
-        storage['0x' + val.key.toString('hex')] = {
-          key: self.keyHashes[val.key.toString('hex')],
-          value: '0x' + value.toString('hex')
-        }
-      })
-      stream.on('end', function () {
-        cb(storage)
-      })
-    })
-  }
-}
-
-var stateManager = new StateManagerCommonStorageDump({})
-var vm = new EthJSVM({
-  enableHomestead: true,
-  activatePrecompiles: true
-})
-
-// FIXME: move state manager in EthJSVM ctr
-vm.stateManager = stateManager
-vm.blockchain = stateManager.blockchain
-vm.trie = stateManager.trie
-vm.stateManager.checkpoint()
-
-var web3VM = new Web3VMProvider()
-web3VM.setVM(vm)
-
-var mainNetGenesisHash = '0xd4e56740f876aef8c010b86a40d5f56745a118d0906a34e69aec8c0db1cb8fa3'
-
-/*
-  trigger contextChanged, web3EndpointChanged
-*/
-function ExecutionContext () {
-  var self = this
-  this.event = new EventManager()
-
-  var executionContext = null
-
-  this.init = function (config) {
-    if (config.get('settings/always-use-vm')) {
-      executionContext = 'vm'
-    } else {
-      executionContext = injectedProvider ? 'injected' : 'vm'
-    }
-  }
-
-  this.getProvider = function () {
-    return executionContext
-  }
-
-  this.isVM = function () {
-    return executionContext === 'vm'
-  }
-
-  this.web3 = function () {
-    return this.isVM() ? web3VM : web3
-  }
-
-  this.detectNetwork = function (callback) {
-    if (this.isVM()) {
-      callback(null, { id: '-', name: 'VM' })
-    } else {
-      this.web3().version.getNetwork((err, id) => {
-        var name = null
-        if (err) name = 'Unknown'
-        // https://github.com/ethereum/EIPs/blob/master/EIPS/eip-155.md
-        else if (id === '1') name = 'Main'
-        else if (id === '2') name = 'Morden (deprecated)'
-        else if (id === '3') name = 'Ropsten'
-        else if (id === '4') name = 'Rinkeby'
-        else if (id === '42') name = 'Kovan'
-        else name = 'Custom'
-
-        if (id === '1') {
-          this.web3().eth.getBlock(0, (error, block) => {
-            if (error) console.log('cant query first block')
-            if (block && block.hash !== mainNetGenesisHash) name = 'Custom'
-            callback(err, { id, name })
-          })
-        } else {
-          callback(err, { id, name })
-        }
-      })
-    }
-  }
-
-  this.internalWeb3 = function () {
-    return web3
-  }
-
-  this.blankWeb3 = function () {
-    return blankWeb3
-  }
-
-  this.vm = function () {
-    return vm
-  }
-
-  this.setContext = function (context, endPointUrl, confirmCb, infoCb) {
-    executionContext = context
-    this.executionContextChange(context, endPointUrl, confirmCb, infoCb)
-  }
-
-  this.executionContextChange = function (context, endPointUrl, confirmCb, infoCb, cb) {
-    if (!cb) cb = () => {}
-
-    if (context === 'vm') {
-      executionContext = context
-      vm.stateManager.revert(function () {
-        vm.stateManager.checkpoint()
-      })
-      self.event.trigger('contextChanged', ['vm'])
-      return cb()
-    }
-
-    if (context === 'injected') {
-      if (injectedProvider === undefined) {
-        var alertMsg = 'No injected Web3 provider found. '
-        alertMsg += 'Make sure your provider (e.g. MetaMask) is active and running '
-        alertMsg += '(when recently activated you may have to reload the page).'
-        infoCb(alertMsg)
-        return cb()
-      } else {
-        executionContext = context
-        web3.setProvider(injectedProvider)
-        self.event.trigger('contextChanged', ['injected'])
-        return cb()
-      }
-    }
-
-    if (context === 'web3') {
-      confirmCb(cb)
-    }
-  }
-
-  this.currentblockGasLimit = function () {
-    return this.blockGasLimit
-  }
-
-  this.blockGasLimitDefault = 4300000
-  this.blockGasLimit = this.blockGasLimitDefault
-  setInterval(() => {
-    if (this.getProvider() !== 'vm') {
-      web3.eth.getBlock('latest', (err, block) => {
-        if (!err) {
-          // we can't use the blockGasLimit cause the next blocks could have a lower limit : https://github.com/ethereum/remix/issues/506
-          this.blockGasLimit = (block && block.gasLimit) ? Math.floor(block.gasLimit - (5 * block.gasLimit) / 1024) : this.blockGasLimitDefault
-        } else {
-          this.blockGasLimit = this.blockGasLimitDefault
-        }
-      })
-    }
-  }, 15000)
-
-  // TODO: not used here anymore and needs to be moved
-  function setProviderFromEndpoint (endpoint, context, cb) {
-    var oldProvider = web3.currentProvider
-
-    if (endpoint === 'ipc') {
-      web3.setProvider(new web3.providers.IpcProvider())
-    } else {
-      web3.setProvider(new web3.providers.HttpProvider(endpoint))
-    }
-    if (web3.isConnected()) {
-      executionContext = context
-      self.event.trigger('contextChanged', ['web3'])
-      self.event.trigger('web3EndpointChanged')
-      cb()
-    } else {
-      web3.setProvider(oldProvider)
-      var alertMsg = 'Not possible to connect to the Web3 provider. '
-      alertMsg += 'Make sure the provider is running and a connection is open (via IPC or RPC).'
-      cb(alertMsg)
-    }
-  }
-  this.setProviderFromEndpoint = setProviderFromEndpoint
-}
+var executionContext = remixLib.execution.executionContext
 
-module.exports = new ExecutionContext()
+module.exports = executionContext