/// <summary>
/// Add cases to a union node in the treeview from loaded document.
/// </summary>
/// <remarks>
/// The TypeNode for UnionCase object node has null reference for DataNode.
/// TODO: union containing arrays not supported here
/// </remarks>
/// <param name="node"></param>
/// <param name="t"></param>
protected void addUnionNode(TreeNode node, UnionNode t)
{
foreach (CaseNode c in t.getCases())
{
DataNode dt = new DataNode(c);
node.Nodes.Add(dt);
//node.LastNode.Text = c.toNodeText();
AbstractNode caseBody = c.getCaseBody();
TreeNode caseNode = node.LastNode;
caseNode.Nodes.Add(new DataNode(caseBody));
if (caseBody.isComplex())
{
if (caseBody.GetType().Equals(typeof(StructNode)))
{
addStructNode(caseNode.LastNode, (StructNode)caseBody);
}
else if (caseBody.GetType().Equals(typeof(UnionNode)))
{
addUnionNode(caseNode.LastNode, (UnionNode)caseBody);
}
else if (caseBody.GetType().Equals(typeof(ArrayNode)))
{
addArrayNode(caseNode.LastNode, (ArrayNode)caseBody);
}
}
}
}
/// <summary>
/// Parse and load a union element type
/// </summary>
/// <param name="reader"></param>
/// <returns></returns>
protected static UnionNode LoadUnion(XmlTextReader reader)
{
string vname = reader.GetAttribute("varName");
string blocksize = reader.GetAttribute("blockSize");
UnionNode ut = new UnionNode();
if (vname != null)
{
ut.setVarName( vname );
}
if (blocksize != null)
{
ut.setBlockSize( Convert.ToInt32(blocksize) );
}
bool inDiscriminantSection = false;
bool inCaseSection = false;
string dv = null;
while (reader.Read())
{
if (reader.NodeType == XmlNodeType.Element)
{
if (reader.LocalName.Equals("discriminant"))
{
inDiscriminantSection = true;
}
else if (reader.LocalName.Equals("case"))
{
inCaseSection = true;
dv = reader.GetAttribute("discriminantValue");
}
else
{
AbstractNode it = ParseNode(reader);
if (inDiscriminantSection)
{
ut.setDiscriminantType( it.getTypeName() );
}
else if (inCaseSection)
{
CaseNode c = new CaseNode(dv, it);
ut.addCase(c);
}
}
}
else if (reader.NodeType == XmlNodeType.EndElement)
{
if (reader.LocalName.Equals("discriminant"))
{
inDiscriminantSection = false;
}
else if (reader.LocalName.Equals("case"))
{
inCaseSection = false;
}
else if (reader.LocalName.Equals("union"))
{
break;
}
}
}
return ut;
}
/// <summary>
/// Add cases to a union node in the treeview from loaded document.
/// </summary>
/// <remarks>
/// The TypeNode for UnionCase object node has null reference for DataNode.
/// TODO: union containing arrays not supported here
/// </remarks>
/// <param name="node"></param>
/// <param name="t"></param>
protected void addUnionNode(TreeNode node, UnionNode t)
{
foreach (CaseNode c in t.getCases())
{
DataNode dt = new DataNode(c);
node.Nodes.Add(dt);
//node.LastNode.Text = c.toNodeText();
AbstractNode caseBody = c.getCaseBody();
TreeNode caseNode = node.LastNode;
caseNode.Nodes.Add(new DataNode(caseBody));
if (caseBody.isComplex())
{
if (caseBody.GetType().Equals(typeof(StructNode)))
{
addStructNode(caseNode.LastNode, (StructNode)caseBody);
}
else if (caseBody.GetType().Equals(typeof(UnionNode)))
{
addUnionNode(caseNode.LastNode, (UnionNode)caseBody);
}
else if (caseBody.GetType().Equals(typeof(ArrayNode)))
{
addArrayNode(caseNode.LastNode, (ArrayNode)caseBody);
}
}
}
}
/// <summary>
/// Add a union data element.
/// </summary>
/// <param name="parentNode">parent that contains this union element</param>
/// <param name="at">position where the new node is inserted before</param>
/// <param name="defineType">if true invokes a define union type window</param>
public void addUnionTypeNode(DataNode parentNode, int at, bool defineType)
{
FormUnion formUnion = new FormUnion();
if (defineType)
{
formUnion.TypeName = "MyUnionType-" + Convert.ToString(++typeUnionCounter_);
}
else
{
formUnion.Text = "Build a union element";
formUnion.ChangeLabel("Var Name:");
formUnion.TypeName = "myUnion-" + Convert.ToString(parentNode.Nodes.Count); //TODO: check for duplicate name
}
formUnion.setDataTypeSource(document_.getTypeNames());
DialogResult r = formUnion.ShowDialog(view_);
if (r==DialogResult.OK)
{
string varName = formUnion.TypeName;
string discriminantType = formUnion.DiscriminantType;
string blockSize = formUnion.BlockSize;
int nBlockSize = 0;
try
{
nBlockSize = Convert.ToInt32(blockSize);
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
}
UnionNode un = new UnionNode((defineType)?"":varName);
un.setDiscriminantType(discriminantType);
if (nBlockSize > 0)
{
un.setBlockSize(nBlockSize);
}
AbstractNode aNode = un;
if (defineType)
{
aNode = new DefineTypeNode(formUnion.TypeName, un);
}
DataNode dn = new DataNode(aNode);
int n = 0;
foreach (ListViewItem itm in formUnion.getCases())
{
string sval = itm.Text;
string stype = itm.SubItems[1].Text;
string svname = itm.SubItems[2].Text;
if (!stype.Equals(""))
{
//create a CaseNode
CaseNode cn = new CaseNode(sval, null);
//add data object as child node and case body of the case node
DataNode dcn = new DataNode(cn);
addChildNode(dcn, stype, svname);
addChildNode(dn, dcn, n++);
}
}
addChildNode(parentNode, dn, at);
document_.setModified();
parentNode.ExpandAll();
}
}
/// <summary>
/// Check struct, union and array node for useType references, duplicate union case values.
/// </summary>
/// <remarks>
/// This check should apply to the following scenarios:
/// <list>
/// A struct contains two or more member elements that have the same variable name
/// A struct contains a useType as its member or member of its member which referenced a undefined type
/// A struct contains no member element
/// A union contains no case element
/// A union contains two or more cases with the same discriminant value
/// A union contains a useType element in any of the case elements that referenced a undefined type
/// An array contains no dimension element
/// An streamed array contains more than one dim element
/// An variable-sized array's first dim element has a count (should be zero)
/// A fixed array contains a dim element with a zero count (should be greater than 0)
/// An array contains useType element that referenced a undefined type
/// An array contains a variable-sized construct in its element or embeded descedants.
/// </list>
/// </remarks>
/// <param name="dataNode"></param>
/// <param name="defs"></param>
/// <param name="report"></param>
private static void checkComplexType(ComplexNode dataNode, Hashtable defs, ArrayList report)
{
if (dataNode.GetType().Equals(typeof(StructNode)))
{
StructNode sNode = (StructNode)dataNode;
if (sNode.getMemberCount() > 0)
{
Hashtable varNames = new Hashtable();
foreach (AbstractNode aNode in ((StructNode)dataNode).getMembers())
{
//check duplicate variable names as warnings
checkVarNames(aNode, varNames, report);
checkUseType(aNode, defs, report);
}
}
else
{
//empty struct
report.Add("Warning: struct '" + sNode.toNodeText() + "' contains no member element.");
}
}
else if (dataNode.GetType().Equals(typeof(UnionNode)))
{
UnionNode uNode = (UnionNode)dataNode;
if (uNode.getCaseCount() > 0)
{
Hashtable cases = new Hashtable();
foreach (CaseNode cNode in uNode.getCases())
{
//case values must be unique
if (cases.Contains(cNode.getDiscriminantValue()))
{
report.Add("Error: duplicate case value '" + cNode.getDiscriminantValue() + "' at union type '" + dataNode.toNodeText() + "'.");
}
else
{
cases.Add(cNode.getDiscriminantValue(), cNode);
}
//if case body is useType, check type defs
checkUseType(cNode.getCaseBody(), defs, report);
}
}
else
{
report.Add("Warning: union '" + uNode.toNodeText() + "' contains no case element.");
}
}
else if (dataNode.GetType().Equals(typeof(ArrayNode)))
{
ArrayNode arrayNode = (ArrayNode)dataNode;
if (arrayNode.getDimension() == null)
{
report.Add("Error: Array '" + arrayNode.toNodeText() + "' has no dimension element.");
}
else
{
if (arrayNode.isArrayStreamed() && arrayNode.getDimensionCount() > 1)
{
report.Add("Warning: Streamed array contains more than one dimension.");
}
else if (arrayNode.isArrayFixed())
{
for (DimNode dn = arrayNode.getDimension(); dn != null; dn = dn.getChild())
{
if (dn.count() <= 0)
{
report.Add("Error: array dimension is of invalid size at '" + arrayNode.toNodeText() + "'.");
}
}
}
else
{
//first dim must be of 0 size
DimNode dn = arrayNode.getDimension();
if (dn.count() > 0)
{
report.Add("Warning: first dimension count of a variable-sized array ignored at '" + arrayNode.toNodeText() + "'.");
}
for (dn = dn.getChild(); dn != null; dn = dn.getChild())
{
if (dn.count() <= 0)
{
report.Add("Error: array dimension is of invalid size at '" + arrayNode.toNodeText() + "'.");
}
}
}
}
checkUseType(arrayNode.getElement(), defs, report);
//check for variable-sized construct contained in arrays
checkVariableConstruct(arrayNode.getElement(), report);
}
}
/// <summary>
/// Parse and load a union element type
/// </summary>
/// <param name="reader"></param>
/// <returns></returns>
protected static UnionNode LoadUnion(XmlTextReader reader)
{
string vname = reader.GetAttribute("varName");
string blocksize = reader.GetAttribute("blockSize");
UnionNode ut = new UnionNode();
if (vname != null)
{
ut.setVarName(vname);
}
if (blocksize != null)
{
ut.setBlockSize(Convert.ToInt32(blocksize));
}
bool inDiscriminantSection = false;
bool inCaseSection = false;
string dv = null;
while (reader.Read())
{
if (reader.NodeType == XmlNodeType.Element)
{
if (reader.LocalName.Equals("discriminant"))
{
inDiscriminantSection = true;
}
else if (reader.LocalName.Equals("case"))
{
inCaseSection = true;
dv = reader.GetAttribute("discriminantValue");
}
else
{
AbstractNode it = ParseNode(reader);
if (inDiscriminantSection)
{
ut.setDiscriminantType(it.getTypeName());
}
else if (inCaseSection)
{
CaseNode c = new CaseNode(dv, it);
ut.addCase(c);
}
}
}
else if (reader.NodeType == XmlNodeType.EndElement)
{
if (reader.LocalName.Equals("discriminant"))
{
inDiscriminantSection = false;
}
else if (reader.LocalName.Equals("case"))
{
inCaseSection = false;
}
else if (reader.LocalName.Equals("union"))
{
break;
}
}
}
return(ut);
}
/// <summary>
/// Add a union data element.
/// </summary>
/// <param name="parentNode">parent that contains this union element</param>
/// <param name="at">position where the new node is inserted before</param>
/// <param name="defineType">if true invokes a define union type window</param>
public void addUnionTypeNode(DataNode parentNode, int at, bool defineType)
{
FormUnion formUnion = new FormUnion();
if (defineType)
{
formUnion.TypeName = "MyUnionType-" + Convert.ToString(++typeUnionCounter_);
}
else
{
formUnion.Text = "Build a union element";
formUnion.ChangeLabel("Var Name:");
formUnion.TypeName = "myUnion-" + Convert.ToString(parentNode.Nodes.Count); //TODO: check for duplicate name
}
formUnion.setDataTypeSource(document_.getTypeNames());
DialogResult r = formUnion.ShowDialog(view_);
if (r == DialogResult.OK)
{
string varName = formUnion.TypeName;
string discriminantType = formUnion.DiscriminantType;
string blockSize = formUnion.BlockSize;
int nBlockSize = 0;
try
{
nBlockSize = Convert.ToInt32(blockSize);
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
}
UnionNode un = new UnionNode((defineType)?"":varName);
un.setDiscriminantType(discriminantType);
if (nBlockSize > 0)
{
un.setBlockSize(nBlockSize);
}
AbstractNode aNode = un;
if (defineType)
{
aNode = new DefineTypeNode(formUnion.TypeName, un);
}
DataNode dn = new DataNode(aNode);
int n = 0;
foreach (ListViewItem itm in formUnion.getCases())
{
string sval = itm.Text;
string stype = itm.SubItems[1].Text;
string svname = itm.SubItems[2].Text;
if (!stype.Equals(""))
{
//create a CaseNode
CaseNode cn = new CaseNode(sval, null);
//add data object as child node and case body of the case node
DataNode dcn = new DataNode(cn);
addChildNode(dcn, stype, svname);
addChildNode(dn, dcn, n++);
}
}
addChildNode(parentNode, dn, at);
document_.setModified();
parentNode.ExpandAll();
}
}
