/// <summary>
/// Read nodes for a component
/// </summary>
/// <param name="c">The circuit component</param>
/// <param name="parameters">The parameters</param>
/// <param name="index">The index where to start reading, defaults to 0</param>
public static void ReadNodes(this ICircuitComponent c, SubcircuitPath path, List <Token> parameters, int index = 0)
{
int count = c.PinCount;
// Check that there are enough parameters left to read
if (parameters.Count < index + count)
{
if (parameters.Count > 0)
{
throw new ParseException(parameters[parameters.Count - 1], $"{count} nodes expected");
}
throw new ParseException($"Unexpected end of line, {count} nodes expected");
}
// Extract the nodes
CircuitIdentifier[] nodes = new CircuitIdentifier[count];
for (int i = index; i < index + count; i++)
{
if (IsNode(parameters[i]))
{
// Map to a new node if necessary, else make the node local to the current path
CircuitIdentifier node = new CircuitIdentifier(parameters[i].image);
if (path.NodeMap.TryGetValue(node, out CircuitIdentifier mapped))
{
node = mapped;
}
else if (path.InstancePath != null)
{
node = path.InstancePath.Grow(node);
}
// Store the node
nodes[i] = node;
}
else
{
throw new ParseException(parameters[i], "Node expected");
}
}
// Succeeded
c.Connect(nodes);
}
/// <summary>
/// Read subcircuit definitions
/// </summary>
/// <param name="name">Name</param>
/// <param name="parameters">Parameters</param>
/// <param name="netlist">Netlist</param>
/// <returns></returns>
public override bool Read(string type, Statement st, Netlist netlist)
{
if (st.Parameters.Count < 2)
{
throw new ParseException(st.Name, "Subcircuit name expected", false);
}
// Create the identifier of the subcircuit definition
CircuitIdentifier name = new CircuitIdentifier(st.Parameters[0].image);
if (netlist.Path.DefinitionPath != null)
{
name = netlist.Path.DefinitionPath.Grow(name);
}
// Extract the subcircuit definition statements
StatementsToken body = (StatementsToken)st.Parameters[st.Parameters.Count - 1];
SubcircuitDefinition definition = new SubcircuitDefinition(name, body);
// Parse nodes and parameters
bool mode = true; // true = nodes, false = parameters
for (int i = 1; i < st.Parameters.Count - 1; i++)
{
if (mode)
{
// After this, only parameters will follow
if (st.Parameters[i].image.ToLower() == "params:")
{
mode = false;
}
// Parameters have started, so we will keep reading parameters
else if (st.Parameters[i].kind == ASSIGNMENT)
{
mode = false;
AssignmentToken at = st.Parameters[i] as AssignmentToken;
definition.Defaults.Add(new CircuitIdentifier(at.Name.image), at.Value);
}
// Still reading nodes
else if (ReaderExtension.IsNode(st.Parameters[i]))
{
definition.Pins.Add(new CircuitIdentifier(st.Parameters[i].image));
}
}
else if (st.Parameters[i].kind == ASSIGNMENT)
{
AssignmentToken at = st.Parameters[i] as AssignmentToken;
definition.Defaults.Add(new CircuitIdentifier(at.Name.image), at.Value);
}
}
// Create a new subcircuit path
SubcircuitPath orig = netlist.Path;
netlist.Path = new SubcircuitPath(orig, definition);
foreach (var s in definition.Body.Statements(StatementType.Subcircuit))
{
netlist.Readers.Read(s, netlist);
}
// Restore
netlist.Path = orig;
// Return values
netlist.Definitions.Add(definition.Name, definition);
Generated = definition;
return(true);
}
/// <summary>
/// Read
/// </summary>
/// <param name="type">Type</param>
/// <param name="st">Statement</param>
/// <param name="netlist">Netlist</param>
/// <returns></returns>
public override bool Read(string type, Statement st, Netlist netlist)
{
// Initialize
List <CircuitIdentifier> instancepins = new List <CircuitIdentifier>();
Dictionary <CircuitIdentifier, Token> instanceparameters = new Dictionary <CircuitIdentifier, Token>();
CircuitIdentifier definition = null;
// Get the name
CircuitIdentifier name;
if (netlist.Path.InstancePath != null)
{
name = netlist.Path.InstancePath.Grow(st.Name.image);
}
else
{
name = new CircuitIdentifier(st.Name.image);
}
// Format: <NAME> <NODES>* <SUBCKT> <PAR1>=<VAL1> ...
// Or: <NAME> <NODES>* <SUBCKT> params: <PAR1>=<VAL1> ...
bool mode = true; // true = nodes, false = parameters
for (int i = 0; i < st.Parameters.Count; i++)
{
// Reading nodes
if (mode)
{
if (ReaderExtension.IsNode(st.Parameters[i]))
{
instancepins.Add(definition = new CircuitIdentifier(st.Parameters[i].image));
}
else
{
instancepins.RemoveAt(instancepins.Count - 1);
mode = false;
}
}
// Reading parameters
// Don't use ELSE! We still need to read the last parameter
if (!mode)
{
if (st.Parameters[i].kind == ASSIGNMENT)
{
AssignmentToken at = st.Parameters[i] as AssignmentToken;
switch (at.Name.kind)
{
case WORD:
case IDENTIFIER:
instanceparameters.Add(new CircuitIdentifier(at.Name.image), at.Value);
break;
default:
throw new ParseException(at.Name, "Parameter name expected");
}
}
}
}
// If there are only node-like tokens, then the last one is the definition by default
if (mode)
{
instancepins.RemoveAt(instancepins.Count - 1);
}
// Modify the instancepins to be local or use the nodemap
for (int i = 0; i < instancepins.Count; i++)
{
if (netlist.Path.NodeMap.TryGetValue(instancepins[i], out CircuitIdentifier node))
{
instancepins[i] = node;
}
else if (netlist.Path.InstancePath != null)
{
instancepins[i] = netlist.Path.InstancePath.Grow(instancepins[i].Name);
}
}
// Find the subcircuit definition
if (netlist.Path.DefinitionPath != null)
{
definition = netlist.Path.DefinitionPath.Grow(definition);
}
SubcircuitDefinition subcktdef = netlist.Path.FindDefinition(netlist.Definitions, definition) ??
throw new ParseException(st.Parameters[st.Parameters.Count - 1], "Cannot find subcircuit definition");
Subcircuit subckt = new Subcircuit(subcktdef, name, instancepins, instanceparameters);
SubcircuitPath orig = netlist.Path;
netlist.Path = new SubcircuitPath(netlist, orig, subckt);
// Read all control statements
foreach (var s in subcktdef.Body.Statements(StatementType.Control))
{
netlist.Readers.Read(s, netlist);
}
// Read all model statements
foreach (var s in subcktdef.Body.Statements(StatementType.Model))
{
netlist.Readers.Read(s, netlist);
}
// Read all component statements
foreach (var s in subcktdef.Body.Statements(StatementType.Component))
{
netlist.Readers.Read(s, netlist);
}
// Restore
netlist.Path = orig;
Generated = subckt;
return(true);
}