remove debugger UI dependency out of solidityState

src/app/debugger/debugger/VmDebugger.js

@@ -22,7 +22,7 @@ class VmDebuggerLogic {
     this.storageResolver = null
     this.tx = tx
 
-    this.debuggerSolidityState = new DebuggerSolidityState(_parentUI, tx, _stepManager, _traceManager, _codeManager, _solidityProxy)
+    this.debuggerSolidityState = new DebuggerSolidityState(tx, _stepManager, _traceManager, _codeManager, _solidityProxy)
     this.debuggerSolidityLocals = new DebuggerSolidityLocals(_parentUI, tx, _stepManager, _traceManager, _callTree)
   }
 
@@ -33,7 +33,6 @@ class VmDebuggerLogic {
     this.listenToFullStorageChanges()
     this.listenToNewChanges()
 
-    this.debuggerSolidityState.init()
     this.listenToSolidityStateEvents()
 
     this.debuggerSolidityLocals.init()
@@ -220,6 +219,7 @@ class VmDebuggerLogic {
 
   listenToSolidityStateEvents () {
     const self = this
+    this._parentUI.event.register('indexChanged', this.debuggerSolidityState.init.bind(this.debuggerSolidityState))
     this.debuggerSolidityState.event.register('solidityState', function (state) {
       self.event.trigger('solidityState', [state])
     })
@@ -229,6 +229,8 @@ class VmDebuggerLogic {
     this.debuggerSolidityState.event.register('solidityStateUpdating', function () {
       self.event.trigger('solidityStateUpdating', [])
     })
+    this._parentUI.event.register('traceUnloaded', this.debuggerSolidityState.reset.bind(this.debuggerSolidityState))
+    this._parentUI.event.register('newTraceLoaded', this.debuggerSolidityState.reset.bind(this.debuggerSolidityState))
   }
 
   listenToSolidityLocalsEvents () {

src/app/debugger/debugger/solidityState.js

@@ -6,24 +6,20 @@ var StorageViewer = remixDebug.storage.StorageViewer
 
 class DebuggerSolidityState {
 
-  constructor (_parent, tx, _stepManager, _traceManager, _codeManager, _solidityProxy) {
+  constructor (tx, _stepManager, _traceManager, _codeManager, _solidityProxy) {
     this.event = new EventManager()
     this.storageResolver = null
-    this.parent = _parent
     this.stepManager = _stepManager
     this.traceManager = _traceManager
     this.codeManager = _codeManager
     this.solidityProxy = _solidityProxy
     this.stateVariablesByAddresses = {}
     this.tx = tx
-    _parent.event.register('traceUnloaded', () => { this.stateVariablesByAddresses = {} })
-    _parent.event.register('newTraceLoaded', () => { this.stateVariablesByAddresses = {} })
   }
 
-  init () {
+  init (index) {
     var self = this
     var decodeTimeout = null
-    this.parent.event.register('indexChanged', this, function (index) {
     if (index < 0) {
       return self.event.trigger('solidityStateMessage', ['invalid step index'])
     }
@@ -43,7 +39,10 @@ class DebuggerSolidityState {
     decodeTimeout = setTimeout(function () {
       self.decode(index)
     }, 500)
-    })
+  }
+
+  reset () {
+    this.stateVariablesByAddresses = {}
   }
 
   decode (index) {