public virtual void SetRoot(OutputModelObject root)
{
this.root = root;
}
private Template Walk(OutputModelObject outputModel, bool header)
{
AbstractTarget target = GetTarget();
if (target == null)
{
throw new NotSupportedException("Cannot generate code without a target.");
}
OutputModelWalker walker = new OutputModelWalker(tool, target.GetTemplates());
return walker.Walk(outputModel, header);
}
public virtual Template Walk(OutputModelObject omo, bool header)
{
// CREATE TEMPLATE FOR THIS OUTPUT OBJECT
Type cl = omo.GetType();
string templateName = cl.Name;
if (templateName == null)
{
tool.errMgr.ToolError(ErrorType.NO_MODEL_TO_TEMPLATE_MAPPING, cl.Name);
return new Template("[" + templateName + " invalid]");
}
if (header)
templateName += "Header";
Template st = templates.GetInstanceOf(templateName);
if (st == null)
{
tool.errMgr.ToolError(ErrorType.CODE_GEN_TEMPLATES_INCOMPLETE, templateName);
return new Template("[" + templateName + " invalid]");
}
if (st.impl.FormalArguments == null)
{
tool.errMgr.ToolError(ErrorType.CODE_TEMPLATE_ARG_ISSUE, templateName, "<none>");
return st;
}
IDictionary<string, FormalArgument> formalArgs = new LinkedHashMap<string, FormalArgument>();
foreach (var argument in st.impl.FormalArguments)
formalArgs[argument.Name] = argument;
// PASS IN OUTPUT MODEL OBJECT TO TEMPLATE AS FIRST ARG
string modelArgName = st.impl.FormalArguments[0].Name;
st.Add(modelArgName, omo);
// COMPUTE STs FOR EACH NESTED MODEL OBJECT MARKED WITH @ModelElement AND MAKE ST ATTRIBUTE
ISet<string> usedFieldNames = new HashSet<string>();
IEnumerable<FieldInfo> fields = GetFields(cl);
foreach (FieldInfo fi in fields)
{
ModelElementAttribute annotation = fi.GetCustomAttribute<ModelElementAttribute>();
if (annotation == null)
{
continue;
}
string fieldName = fi.Name;
if (!usedFieldNames.Add(fieldName))
{
tool.errMgr.ToolError(ErrorType.INTERNAL_ERROR, "Model object " + omo.GetType().Name + " has multiple fields named '" + fieldName + "'");
continue;
}
// Just don't set [ModelElement] fields w/o formal argument in target ST
if (!formalArgs.ContainsKey(fieldName))
continue;
try
{
object o = fi.GetValue(omo);
if (o is OutputModelObject)
{
// SINGLE MODEL OBJECT?
OutputModelObject nestedOmo = (OutputModelObject)o;
Template nestedST = Walk(nestedOmo, header);
//System.Console.WriteLine("set ModelElement " + fieldName + "=" + nestedST + " in " + templateName);
st.Add(fieldName, nestedST);
}
else if (o is IDictionary)
{
IDictionary nestedOmoMap = (IDictionary)o;
IDictionary<object, Template> m = new LinkedHashMap<object, Template>();
for (IDictionaryEnumerator enumerator = nestedOmoMap.GetEnumerator(); enumerator.MoveNext(); )
{
DictionaryEntry entry = enumerator.Entry;
Template nestedST = Walk((OutputModelObject)entry.Value, header);
//System.Console.WriteLine("set ModelElement " + fieldName + "=" + nestedST + " in " + templateName);
m[entry.Key] = nestedST;
}
st.Add(fieldName, m);
}
else if (o is IEnumerable && !(o is string))
{
// LIST OF MODEL OBJECTS?
IEnumerable nestedOmos = (IEnumerable)o;
foreach (object nestedOmo in nestedOmos)
{
if (nestedOmo == null)
continue;
Template nestedST = Walk((OutputModelObject)nestedOmo, header);
//System.Console.WriteLine("set ModelElement " + fieldName + "=" + nestedST + " in " + templateName);
st.Add(fieldName, nestedST);
}
}
else if (o != null)
{
tool.errMgr.ToolError(ErrorType.INTERNAL_ERROR, "not recognized nested model element: " + fieldName);
}
}
catch (FieldAccessException)
{
tool.errMgr.ToolError(ErrorType.CODE_TEMPLATE_ARG_ISSUE, templateName, fieldName);
}
}
//st.impl.Dump();
return st;
}