protected override void Deserialize(CodeReader reader)
{
var decls = new ArrayList();
while (reader.Current != WorkflowCommonDefs.CompilerSegmentEnd)
{
IContextSerializer instance = EngineContextFactory.Create(reader);
var tpl = instance as EngineVariableTemplate;
var node = instance as EngineContextNodeBase;
if (tpl != null)
{
decls.Add(tpl);
}
else if (node != null)
{
this.Child = node;
}
}
if (decls.Count > 0)
{
this.Declarations = (EngineVariableTemplate[])decls.ToArray(typeof(EngineVariableTemplate));
}
}
private static object DeserializeValue(
string name,
string input,
IContextSerializer serializer,
Action <string, Exception> errorCallback)
{
try
{
return(serializer.Deserialize(input));
}
catch (Exception error)
{
errorCallback?.Invoke($"Failed to deserialize value of property '{name}' from following string: '{input}'.", error);
return(null);
}
}
public GenericSerializer(IContextSerializer <T> serializer)
{
this.serializer = serializer;
}
internal static IContextSerializer Create(CodeReader reader)
{
IContextSerializer instance = null;
Type t;
int idx;
Delegate d;
switch (reader.Current)
{
case 'u': //root
if (reader.TryRead(3) == WorkflowCommonDefs.CompilerNodeRoot)
{
reader.Ptr += 3;
instance = new EngineContextRoot();
instance.Deserialize(reader);
}
break;
case WorkflowCommonDefs.CompilerTypeVoid: //nop
reader.Ptr++;
instance = new EngineContextNop();
instance.Deserialize(reader);
break;
case 'v': //local-var declaration
reader.Ptr++;
t = GetTypeFromTag(reader.Read());
idx = reader.ReadIndex();
instance = new EngineVariableTemplate(t, idx.ToString());
instance.Deserialize(reader);
break;
case 'F': //global-func reference
reader.Ptr++;
idx = reader.ReadIndex();
d = reader.GlobalFuncs[idx];
instance = CreateFunc(d);
instance.Deserialize(reader);
break;
case 'f': //local-func reference
throw new NotSupportedException();
case 'L': //global-var reference
reader.Ptr++;
idx = reader.ReadIndex();
instance = new EngineContextGlobalVarReference(idx);
instance.Deserialize(reader);
break;
case 'l': //local-var reference
reader.Ptr++;
idx = reader.ReadIndex();
instance = new EngineContextLocalVarReference(idx);
instance.Deserialize(reader);
break;
case 'K': //constant value
reader.Ptr++;
t = GetTypeFromTag(reader.Read());
instance = new EngineContextConstantValue(t);
instance.Deserialize(reader);
break;
case 'C': //cast
reader.Ptr++;
t = GetTypeFromTag(reader.Read());
instance = new EngineContextCast(
GetTypeFromTag(reader.Read()),
t);
instance.Deserialize(reader);
break;
case 'S': //statement
if (reader.TryRead(2) == WorkflowCommonDefs.CompilerNodeStatementSequence)
{
reader.Ptr += 2;
instance = new EngineContextSequence();
instance.Deserialize(reader);
}
else if (reader.TryRead(2) == WorkflowCommonDefs.CompilerNodeStatementAssign)
{
reader.Ptr += 2;
instance = new EngineContextAssign();
instance.Deserialize(reader);
}
else if (reader.TryRead(2) == WorkflowCommonDefs.CompilerNodeStatementWhile)
{
reader.Ptr += 2;
instance = new EngineContextWhile();
instance.Deserialize(reader);
}
else if (reader.TryRead(2) == WorkflowCommonDefs.CompilerNodeStatementIf)
{
reader.Ptr += 2;
instance = new EngineContextIf();
instance.Deserialize(reader);
}
break;
}
if (instance == null)
{
throw new NotSupportedException();
}
return(instance);
}
