private void StepDebugger()
{
if (shouldReset)
{
if (!this.ResetDebugger())
{
return;
}
}
int oldLine = currentLine;
RemoveCurrentHighlight();
do
{
debugState = debugger.Step();
UpdateState();
if (shouldReset)
{
return;
}
} while (currentLine <= 0 || oldLine == currentLine);
UpdateStackPanel();
UpdateGasCost();
var targetLine = TextArea.Lines[currentLine];
targetLine.EnsureVisible();
targetLine.MarkerAdd(STEP_BG);
var firstVisible = TextArea.FirstVisibleLine;
var lastVisible = firstVisible + TextArea.LinesOnScreen;
if (lastVisible > TextArea.Lines.Count)
{
lastVisible = TextArea.Lines.Count;
}
if (oldLine < 0)
{
targetLine.Goto();
}
else
if (currentLine == oldLine + 1)
{
if (currentLine >= lastVisible)
{
TextArea.LineScroll(1, 0);
}
}
else
{
targetLine.Goto();
}
}
/// <summary>
/// executes the script until it finishes, fails or hits a breakpoint
/// </summary>
public DebuggerState Run()
{
do
{
lastState = Step();
} while (lastState.state == DebuggerState.State.Running);
return(lastState);
}
public void Reset()
{
if (lastState.state == DebuggerState.State.Reset)
{
return;
}
engine = new ExecutionEngine(null, Crypto.Default, null, interop);
engine.LoadScript(contractBytes);
using (ScriptBuilder sb = new ScriptBuilder())
{
var items = new Stack <object>();
foreach (var item in ContractArgs)
{
items.Push(item);
}
while (items.Count > 0)
{
var item = items.Pop();
if (item == null)
{
sb.EmitPush("");
}
else
if (item is string)
{
sb.EmitPush((string)item);
}
else
if (item is int)
{
BigInteger num = (int)item;
sb.EmitPush(num);
}
else
{
throw new Exception("Unsupport contract param: " + item.ToString());
}
}
engine.LoadScript(sb.ToArray());
}
foreach (var pos in _breakpoints)
{
engine.AddBreakPoint((uint)pos);
}
engine.Reset();
lastState = new DebuggerState(DebuggerState.State.Reset, 0);
}
private void RunDebugger()
{
if (shouldReset)
{
if (!this.ResetDebugger())
{
return;
}
}
debugState = debugger.Run();
UpdateState();
}
private void RunDebugger()
{
if (this.debugger == null)
{
shouldReset = true;
}
if (shouldReset)
{
if (!this.ResetDebugger())
{
return;
}
}
debugState = debugger.Run();
UpdateState();
}
/// <summary>
/// executes a single instruction in the current script, and returns the last script offset
/// </summary>
public DebuggerState Step()
{
if (lastState.state == DebuggerState.State.Finished || lastState.state == DebuggerState.State.Invalid)
{
return(lastState);
}
engine.ExecuteSingleStep();
try
{
lastOffset = engine.CurrentContext.InstructionPointer;
}
catch
{
// failed to get instruction pointer
}
if (engine.State.HasFlag(VMState.FAULT))
{
lastState = new DebuggerState(DebuggerState.State.Exception, lastOffset);
return(lastState);
}
if (engine.State.HasFlag(VMState.BREAK))
{
lastState = new DebuggerState(DebuggerState.State.Break, lastOffset);
return(lastState);
}
if (engine.State.HasFlag(VMState.HALT))
{
lastState = new DebuggerState(DebuggerState.State.Finished, lastOffset);
return(lastState);
}
lastState = new DebuggerState(DebuggerState.State.Running, lastOffset);
return(lastState);
}
public void Reset()
{
if (lastState.state == DebuggerState.State.Reset)
{
return;
}
_usedGas = 0;
engine = new ExecutionEngine(this, Crypto.Default, null, interop);
engine.LoadScript(contractBytes);
using (ScriptBuilder sb = new ScriptBuilder())
{
var items = new Stack <object>();
foreach (var item in ContractArgs)
{
items.Push(item);
}
while (items.Count > 0)
{
var item = items.Pop();
EmitObject(sb, item);
}
engine.LoadScript(sb.ToArray());
}
foreach (var pos in _breakpoints)
{
engine.AddBreakPoint((uint)pos);
}
engine.Reset();
lastState = new DebuggerState(DebuggerState.State.Reset, 0);
}
/// <summary>
/// executes a single instruction in the current script, and returns the last script offset
/// </summary>
public DebuggerState Step()
{
if (lastState.state == DebuggerState.State.Finished || lastState.state == DebuggerState.State.Invalid)
{
return(lastState);
}
engine.ExecuteSingleStep();
try
{
lastOffset = engine.CurrentContext.InstructionPointer;
var opcode = engine.lastOpcode;
double opCost;
if (opcode <= OpCode.PUSH16)
{
opCost = 0;
}
else
{
switch (opcode)
{
case OpCode.SYSCALL:
{
var callInfo = interop.FindCall(engine.lastSysCall);
opCost = (callInfo != null) ? callInfo.gasCost : 0;
if (engine.lastSysCall.EndsWith("Storage.Put"))
{
opCost *= (Emulator.API.Storage.lastStorageLength / 1024.0);
}
break;
}
case OpCode.CHECKMULTISIG:
case OpCode.CHECKSIG: opCost = 0.1; break;
case OpCode.APPCALL:
case OpCode.TAILCALL:
case OpCode.SHA256:
case OpCode.SHA1: opCost = 0.01; break;
case OpCode.HASH256:
case OpCode.HASH160: opCost = 0.02; break;
case OpCode.NOP: opCost = 0; break;
default: opCost = 0.001; break;
}
}
_usedGas += opCost;
}
catch
{
// failed to get instruction pointer
}
if (engine.State.HasFlag(VMState.FAULT))
{
lastState = new DebuggerState(DebuggerState.State.Exception, lastOffset);
return(lastState);
}
if (engine.State.HasFlag(VMState.BREAK))
{
lastState = new DebuggerState(DebuggerState.State.Break, lastOffset);
return(lastState);
}
if (engine.State.HasFlag(VMState.HALT))
{
lastState = new DebuggerState(DebuggerState.State.Finished, lastOffset);
return(lastState);
}
lastState = new DebuggerState(DebuggerState.State.Running, lastOffset);
return(lastState);
}