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EiffelStudio

# Attribute symbols

In both trees of the object tool, objects are displayed. Two categories are made for each objects: its attributes (grouped under the `attributes' folder ) and its once routines (grouped under the `once routines' folder ).

All follow the following symbol scheme to describe the kind of each item:

- An attribute of a basic type, such as INTEGER, DOUBLE,...
- An attribute that is a reference to an object
- A Void reference
- An object that is expanded

For .NET system, special symbols are used to describe :

- An object that is external (i.e not known as an Eiffel type)
- A static value object that is external (i.e not known as an Eiffel type)
- A static value object that is known as an Eiffel type