private Node CreateNode(GravisParser.Node_defContext context)
{
var node = new Node();
if (context.input_def() != null)
{
if (subspaceStack.Count != 0)
{
var subspace = subspaceStack.Peek();
subspace.input = node;
}
node.type = NodeType.Input;
node.text = "I";
}
else if (context.output_def() != null)
{
if (subspaceStack.Count != 0)
{
var subspace = subspaceStack.Peek();
subspace.output = node;
}
node.type = NodeType.Output;
node.text = "O";
}
else if (context.const_def() != null)
{
node.type = NodeType.Constant;
node.text = context.const_def().NUMBER().GetText();
}
else if (context.if_def() != null)
{
node.type = NodeType.If;
node.text = context.if_def().comp_op().GetText();
}
else if (context.opr_def() != null)
{
node.type = NodeType.Operator;
node.text = context.opr_def().arith_op().GetText();
}
else if (context.subspace_def() != null)
{
node.type = NodeType.Subspace;
node.text = "S";
var subspace = new Subspace(node);
subspaces.Add(subspace);
subspaceStack.Push(subspace);
}
else if (context.self_subspace_def() != null)
{
node.type = NodeType.SelfSubspace;
node.text = "S";
}
else
{
node.text = "?";
}
nodes.Add(node);
return(node);
}
/// <summary>
/// Exit a parse tree produced by <see cref="GravisParser.node_def"/>.
/// <para>The default implementation does nothing.</para>
/// </summary>
/// <param name="context">The parse tree.</param>
public virtual void ExitNode_def([NotNull] GravisParser.Node_defContext context)
{
}
