public override AstNode Visit(FieldDeclaration node)
{
// Get the field.
FieldVariable field = (FieldVariable)node.GetVariable();
// Get the field type.
IChelaType fieldType = field.GetVariableType();
if (!fieldType.IsConstant() || field.IsExternal())
{
return(node); // Ignore not constant fields.
}
// Get the initializer.
Expression initializer = node.GetDefaultValue();
if (initializer == null)
{
Error(node, "constants must have initializers.");
}
// Don't allow multiple definitions.
if (constants.ContainsKey(field))
{
Error(node, "multiples definitions of a constant.");
}
// Store the constant.
ConstantData data = new ConstantData(field, initializer);
this.constants.Add(field, data);
// Return the node.
return(node);
}
