public override Value VisitVariableExpression([NotNull] VariableExpressionContext context)
{
string varName = context.Name;
if (!NamedValues.TryGetValue(varName, out Value value))
{
throw new ArgumentException("Unknown variable name", nameof(context));
}
return(value);
}
public override IAstNode VisitVariableExpression([NotNull] VariableExpressionContext context)
{
string varName = context.Name;
if (!NamedValues.TryGetValue(varName, out IVariableDeclaration declaration))
{
throw new CodeGeneratorException($"Unknown variable name: {varName}");
}
return(new VariableReferenceExpression(context.GetSourceSpan( ), declaration));
}
public override IAstNode VisitVariableExpression(VariableExpressionContext context)
{
string varName = context.Name;
if (!NamedValues.TryGetValue(varName, out IVariableDeclaration? declaration))
{
return(new ErrorNode(context.GetSourceSpan( ), $"Unknown variable name: {varName}"));
}
return(new VariableReferenceExpression(context.GetSourceSpan( ), declaration));
}
public override Value VisitVariableExpression([NotNull] VariableExpressionContext context)
{
string varName = context.Name;
if (!NamedValues.TryGetValue(varName, out Alloca value))
{
throw new ArgumentException("Unknown variable name", nameof(context));
}
return(InstructionBuilder.Load(value)
.RegisterName(varName));
}
public override Expression VisitVariableExpression([NotNull] VariableExpressionContext context)
{
var index = GetIndexNumber(context.index());
return(Variables[index]);
}
public override Node VisitVariableExpression(VariableExpressionContext context)
{
return(new VariableNode(context.Start, context.LABEL().GetText()));
}