/// <summary>
/// Appends a compiled DS script statment to the execution body
/// </summary>
/// <param name="executionStmt"></param>
public void AppendExecutionStatement(VHDLNode executionStmt)
{
ExecutionBody.Add(executionStmt);
// If the stmt is a signal assignment, update the lhs signal
AssignmentNode assignNode = executionStmt as AssignmentNode;
if (assignNode != null)
{
ProcessNode process = GetCurrentProcess();
Validity.Assert(assignNode.LHS is IdentifierNode);
process.AssignedSignals.Add((assignNode.LHS as IdentifierNode).Value);
}
}
public BinaryExpressionNode(VHDLNode lhs, VHDLNode rhs, Operator optr)
{
this.LHS = lhs;
this.RHS = rhs;
this.Optr = optr;
}
public AssignmentNode(VHDLNode lhs, VHDLNode rhs, bool isSignal = true)
{
LHS = lhs;
RHS = rhs;
IsSignalAssignment = isSignal;
}
public override string ToString()
{
StringBuilder sbIfExpr = new StringBuilder();
// Optional name
if (!string.IsNullOrEmpty(Name))
{
sbIfExpr.Append(Name);
sbIfExpr.Append(" ");
sbIfExpr.Append(":");
sbIfExpr.Append(" ");
}
// An ifnode must always have an expression
Validity.Assert(sbIfExpr != null);
// If expr
sbIfExpr.Append(ProtoCore.VHDL.Constants.Keyword.If);
sbIfExpr.Append(" ");
sbIfExpr.Append(IfExpr.ToString());
sbIfExpr.Append(" ");
sbIfExpr.Append(ProtoCore.VHDL.Constants.Keyword.Then);
sbIfExpr.Append("\n");
// If body
StringBuilder sbIfBody = new StringBuilder();
foreach (AST.VHDLNode node in IfBody)
{
sbIfBody.Append(node.ToString());
sbIfBody.Append("\n");
}
sbIfBody.Append("\n");
// Elsif expr
StringBuilder sbElsifStmt = new StringBuilder();
if (ElsifExprList.Count > 0)
{
for (int i = 0; i < ElsifExprList.Count; ++i)
{
VHDLNode exprNode = ElsifExprList[i];
sbElsifStmt.Append(ProtoCore.VHDL.Constants.Keyword.Elsif);
sbElsifStmt.Append(" ");
sbElsifStmt.Append(exprNode.ToString());
sbElsifStmt.Append(" ");
sbElsifStmt.Append(ProtoCore.VHDL.Constants.Keyword.Then);
sbElsifStmt.Append("\n");
// Elsif body
foreach (VHDLNode node in ElsifBodyList[i])
{
sbElsifStmt.Append(node.ToString());
sbElsifStmt.Append("\n");
}
sbElsifStmt.Append("\n");
}
}
// Else
StringBuilder sbElse = new StringBuilder();
StringBuilder sbElseBody = new StringBuilder();
if (ElseBody.Count > 0)
{
sbElse.Append(ProtoCore.VHDL.Constants.Keyword.Else);
sbElse.Append("\n\t");
// Else body
foreach (AST.VHDLNode node in ElseBody)
{
sbElseBody.Append(node.ToString());
sbElseBody.Append("\n");
}
sbElseBody.Append("\n");
}
StringBuilder sbEndIf = new StringBuilder();
sbEndIf.Append(ProtoCore.VHDL.Constants.Keyword.End);
sbEndIf.Append(" ");
sbEndIf.Append(ProtoCore.VHDL.Constants.Keyword.If);
sbEndIf.Append(" ");
sbEndIf.Append(Name);
sbEndIf.Append(";");
StringBuilder sbFormat = new StringBuilder();
sbFormat.Append(sbIfExpr);
sbFormat.Append(sbIfBody);
sbFormat.Append(sbElsifStmt);
sbFormat.Append(sbElse);
sbFormat.Append(sbElseBody);
sbFormat.Append(sbEndIf);
return(sbFormat.ToString());
}
