add error param in callback functions

src/asmCode.js

@@ -48,8 +48,12 @@ module.exports = React.createClass({
     if (nextProps.currentStepIndex < 0) return
     codeResolver.setWeb3(this.context.web3)
     var self = this
-    this.context.traceManager.getCurrentCalledAddressAt(nextProps.currentStepIndex, function (address) {
+    this.context.traceManager.getCurrentCalledAddressAt(nextProps.currentStepIndex, function (error, address) {
+      if (error) {
+        console.log(error)
+      } else {
         self.ensureCodeLoaded(address, nextProps.currentStepIndex)
+      }
     })
   },
 
@@ -77,10 +81,14 @@ module.exports = React.createClass({
 
   setInstructionIndex: function (address, step) {
     var self = this
-    this.context.traceManager.getCurrentPC(step, function (instIndex) {
+    this.context.traceManager.getCurrentPC(step, function (error, instIndex) {
+      if (error) {
+        console.log(error)
+      } else {
         self.setState({
           selected: codeResolver.getInstructionIndex(address, instIndex)
         })
+      }
     })
   }
 })

src/calldataPanel.js

@@ -30,8 +30,10 @@ module.exports = React.createClass({
     if (window.ethDebuggerSelectedItem !== nextProps.currentStepIndex) return
 
     var self = this
-    this.context.traceManager.getCallDataAt(nextProps.currentStepIndex, function (calldata) {
-      if (window.ethDebuggerSelectedItem === nextProps.currentStepIndex) {
+    this.context.traceManager.getCallDataAt(nextProps.currentStepIndex, function (error, calldata) {
+      if (error) {
+        console.log(error)
+      } else if (window.ethDebuggerSelectedItem === nextProps.currentStepIndex) {
         self.setState({
           data: calldata
         })

src/callstackPanel.js

@@ -30,8 +30,10 @@ module.exports = React.createClass({
     if (window.ethDebuggerSelectedItem !== nextProps.currentStepIndex) return
 
     var self = this
-    this.context.traceManager.getCallStackAt(nextProps.currentStepIndex, function (callstack) {
-      if (window.ethDebuggerSelectedItem === nextProps.currentStepIndex) {
+    this.context.traceManager.getCallStackAt(nextProps.currentStepIndex, function (error, callstack) {
+      if (error) {
+        console.log(error)
+      } else if (window.ethDebuggerSelectedItem === nextProps.currentStepIndex) {
         self.setState({
           data: callstack
         })

src/memoryPanel.js

@@ -31,8 +31,10 @@ module.exports = React.createClass({
     if (window.ethDebuggerSelectedItem !== nextProps.currentStepIndex) return
 
     var self = this
-    this.context.traceManager.getMemoryAt(nextProps.currentStepIndex, function (memory) {
-      if (window.ethDebuggerSelectedItem === nextProps.currentStepIndex) {
+    this.context.traceManager.getMemoryAt(nextProps.currentStepIndex, function (error, memory) {
+      if (error) {
+        console.log(error)
+      } else if (window.ethDebuggerSelectedItem === nextProps.currentStepIndex) {
         self.setState({
           data: self.formatMemory(memory, 16)
         })

src/stackPanel.js

@@ -30,8 +30,10 @@ module.exports = React.createClass({
     if (window.ethDebuggerSelectedItem !== nextProps.currentStepIndex) return
 
     var self = this
-    this.context.traceManager.getStackAt(nextProps.currentStepIndex, function (stack) {
-      if (window.ethDebuggerSelectedItem === nextProps.currentStepIndex) {
+    this.context.traceManager.getStackAt(nextProps.currentStepIndex, function (error, stack) {
+      if (error) {
+        console.log(error)
+      } else if (window.ethDebuggerSelectedItem === nextProps.currentStepIndex) {
         self.setState({
           data: stack
         })

src/stepManager.js

@@ -54,8 +54,12 @@ module.exports = React.createClass({
   newTraceAvailable: function () {
     this.init()
     var self = this
-    this.context.traceManager.getLength(function (length) {
+    this.context.traceManager.getLength(function (error, length) {
+      if (error) {
+        console.log(error)
+      } else {
         self.setState({ traceLength: length })
+      }
     })
   },
 

src/sticker.js

@@ -84,28 +84,44 @@ module.exports = React.createClass({
     if (nextProps.currentStepIndex < 0) return
 
     var self = this
-    this.context.traceManager.getCurrentStep(nextProps.currentStepIndex, function (step) {
+    this.context.traceManager.getCurrentStep(nextProps.currentStepIndex, function (error, step) {
+      if (error) {
+        console.log(error)
+      } else {
         self.setState({
           step: step
         })
+      }
     })
 
-    this.context.traceManager.getMemExpand(nextProps.currentStepIndex, function (addmem) {
+    this.context.traceManager.getMemExpand(nextProps.currentStepIndex, function (error, addmem) {
+      if (error) {
+        console.log(error)
+      } else {
         self.setState({
           addmemory: addmem
         })
+      }
     })
 
-    this.context.traceManager.getStepCost(nextProps.currentStepIndex, function (gas) {
+    this.context.traceManager.getStepCost(nextProps.currentStepIndex, function (error, gas) {
+      if (error) {
+        console.log(error)
+      } else {
         self.setState({
           gas: gas
         })
+      }
     })
 
-    this.context.traceManager.getRemainingGas(nextProps.currentStepIndex, function (remaingas) {
+    this.context.traceManager.getRemainingGas(nextProps.currentStepIndex, function (error, remaingas) {
+      if (error) {
+        console.log(error)
+      } else {
         self.setState({
           remaininGas: remaingas
         })
+      }
     })
   }
 })

src/storagePanel.js

@@ -31,8 +31,10 @@ module.exports = React.createClass({
     if (window.ethDebuggerSelectedItem !== nextProps.currentStepIndex) return
 
     var self = this
-    this.context.traceManager.getStorageAt(nextProps.currentStepIndex, this.context.tx.blockNumber.toString(), this.context.tx.transactionIndex, function (storage) {
-      if (window.ethDebuggerSelectedItem === nextProps.currentStepIndex) {
+    this.context.traceManager.getStorageAt(nextProps.currentStepIndex, this.context.tx.blockNumber.toString(), this.context.tx.transactionIndex, function (error, storage) {
+      if (error) {
+        console.log(error)
+      } else if (window.ethDebuggerSelectedItem === nextProps.currentStepIndex) {
         self.setState({
           data: storage
         })

src/traceManager.js

@@ -136,14 +136,14 @@ module.exports = {
 
   // API section
   getLength: function (callback) {
-    if (!this.trace) callback(0)
-    callback(this.trace.length)
+    if (!this.trace) callback('no trace available', null)
+    callback(null, this.trace.length)
   },
 
   getStorageAt: function (stepIndex, blockNumber, txIndex, callback) {
     var stoChange = this.findLowerBound(stepIndex, this.vmTraceChangesRef)
     if (!stoChange) {
-      return {}
+      callback('cannot rebuild storage', null)
     }
 
     var changeRefs = this.vmTraceIndexByStorageChange[stoChange]
@@ -160,20 +160,20 @@ module.exports = {
           }
         }
       }
-      callback(storage)
+      callback(null, storage)
     })
   },
 
   getCallDataAt: function (stepIndex, callback) {
     var callDataChange = this.findLowerBound(stepIndex, this.callDataChanges)
-    if (!callDataChange) return ['']
-    callback([this.trace[callDataChange].calldata])
+    if (!callDataChange) return callback('no calldata found', null)
+    callback(null, [this.trace[callDataChange].calldata])
   },
 
   getCallStackAt: function (stepIndex, callback) {
     var callStackChange = this.findLowerBound(stepIndex, this.depthChanges)
-    if (!callStackChange) return ''
-    callback(this.callStack[callStackChange].stack)
+    if (!callStackChange) return callback('no callstack found', null)
+    callback(null, this.callStack[callStackChange].stack)
   },
 
   getStackAt: function (stepIndex, callback) {
@@ -181,46 +181,52 @@ module.exports = {
     if (this.trace[stepIndex].stack) { // there's always a stack
       stack = this.trace[stepIndex].stack.slice(0)
       stack.reverse()
-      callback(stack)
+      callback(null, stack)
+    } else {
+      callback('no stack found', null)
     }
   },
 
   getLastDepthIndexChangeSince: function (stepIndex, callback) {
     var depthIndex = this.findLowerBound(stepIndex, this.depthChanges)
-    callback(depthIndex)
+    callback(null, depthIndex)
   },
 
   getCurrentCalledAddressAt: function (stepIndex, callback) {
     var self = this
-    this.getLastDepthIndexChangeSince(stepIndex, function (addressIndex) {
-      callback(self.resolveAddress(addressIndex))
+    this.getLastDepthIndexChangeSince(stepIndex, function (error, addressIndex) {
+      if (error) {
+        callback(error, null)
+      } else {
+        callback(null, self.resolveAddress(addressIndex))
+      }
     })
   },
 
   getMemoryAt: function (stepIndex, callback) {
     var lastChanges = this.findLowerBound(stepIndex, this.memoryChanges)
-    if (!lastChanges) return ''
-    callback(this.trace[lastChanges].memory)
+    if (!lastChanges) return callback('no memory found', null)
+    callback(null, this.trace[lastChanges].memory)
   },
 
   getCurrentPC: function (stepIndex, callback) {
-    callback(this.trace[stepIndex].pc)
+    callback(null, this.trace[stepIndex].pc)
   },
 
   getCurrentStep: function (stepIndex, callback) {
-    callback(this.trace[stepIndex].steps)
+    callback(null, this.trace[stepIndex].steps)
   },
 
   getMemExpand: function (stepIndex, callback) {
-    callback(this.trace[stepIndex].memexpand ? this.trace[stepIndex].memexpand : '')
+    callback(null, this.trace[stepIndex].memexpand ? this.trace[stepIndex].memexpand : '')
   },
 
   getStepCost: function (stepIndex, callback) {
-    callback(this.trace[stepIndex].gascost)
+    callback(null, this.trace[stepIndex].gascost)
   },
 
   getRemainingGas: function (stepIndex, callback) {
-    callback(this.trace[stepIndex].gas)
+    callback(null, this.trace[stepIndex].gas)
   },
 
   // step section

src/vmDebugger.js

@@ -73,8 +73,10 @@ module.exports = React.createClass({
     if (nextProps.currentStepIndex < 0) return
     if (window.ethDebuggerSelectedItem !== nextProps.currentStepIndex) return
     var self = this
-    this.context.traceManager.getCurrentCalledAddressAt(nextProps.currentStepIndex, function (address) {
-      if (window.ethDebuggerSelectedItem === nextProps.currentStepIndex) {
+    this.context.traceManager.getCurrentCalledAddressAt(nextProps.currentStepIndex, function (error, address) {
+      if (error) {
+        console.log(error)
+      } else if (window.ethDebuggerSelectedItem === nextProps.currentStepIndex) {
         self.setState({
           currentAddress: address
         })