public override object?VisitDecl_const([NotNull] LogicScriptParser.Decl_constContext context)
{
var value = new ExpressionVisitor(new BlockContext(Context, true)).Visit(context.expression());
if (!value.IsConstant)
{
Errors.AddError("Const declarations must have a constant value", value);
}
Context.Constants.Add(context.IDENT().GetText(), value);
return(null);
}
internal override ComponentNode? Parse()
{
var keyWordComponent = Take(TokenType.KwComponent);
var id = ParserIdentifier();
if (id is null) return null;
var fields = new List<ArchitectureField>();
var equals = TakeWithoutSpace(TokenType.Equals);
if (equals is null) return new ComponentNode(id, fields);
while (_hasField())
{
Take(TokenType.NewLine);
Take(TokenType.Indent);
var fieldId = Take(TokenType.Identifier);
if (fieldId is null)
{
ErrorSink.AddError(Current ?? Token.Default, ErrorType.InvalidIdentifier,
$"A field should have an Identifier.");
continue;
}
TakeWithoutSpace(TokenType.Colon);
var root = Take() ?? Token.Default;
while (_stillInFieldDefinition())
{
if (Current == TokenType.Indent) Take();
else root = root.Append(Take());
}
fields.Add(new ArchitectureField(fieldId, root));
}
return new ComponentNode(id, fields);
}
private void AddError(Severity severity, string message, SourceSpan?span = null)
{
_errorSink.AddError(message, _sourceCode, severity, span ?? CreateSpan(_current));
}
private void AddError(string message, Severity severity)
{
var span = new SourceSpan(tokenStart, new SourceLocation(index, line, column));
errorSink.AddError(message, sourceCode, severity, span);
}
public void AddError(Severity severity, string mes, SourceSpan?span = null)
{
errorSink.AddError(mes, sourceCode, severity, span ?? CreateSpan(currentToken));
}