private Expression BindNameExpression(NameExpressionNode node)
{
VariableExpression variableExpression = null;
var name = node.Identifier.Text;
if (Scope.TryLookupVariable(name, out var variable))
{
variableExpression = new VariableExpression(variable);
}
if (variableExpression == null || node.Identifier.IsForged)
{
diagnostics.ReportUndefinedVariable(node.Identifier, name);
return(new InvalidExpression(variableExpression));
}
return(variableExpression);
}
private void Write(NameExpressionNode exp)
{
_code.Append(exp.Value);
}
internal LabelStatementNode(NameExpressionNode label) => Label = label ?? throw new ArgumentNullException(nameof(label));
internal GotoStatementNode(Token gotoToken, NameExpressionNode label)
{
GotoToken = gotoToken ?? throw new ArgumentNullException(nameof(gotoToken));
Label = label ?? throw new ArgumentNullException(nameof(label));
}
