How do I find which messages an object understands?

Question

In Pharo, I know that integers understand the message to:. The workspace offers suggestions:

But if I inspect an integer from the workspace, it doesn't mention to::

Searching for SmallInteger doesn't show anything in the system browser either:

How do I discover which messages I can send to objects? Ideally I'd like to see their source code too.

Answer 1

Revisiting your question I noticed that, in your last screenshot, you did not search for the class SmallInteger but for a package named SmallInteger. This Package does not exist.

But you probably wanted to search for the class SmallInteger. This is done by the keyboard shortcut Cmd-F Cmd-C (Alt-F Alt-C on Linux) or by selecting Find Class… in the context menu of the class panel of the Nautilus system browser. This lets you browse the methods implemented in SmallInteger. If you work up your way through the superclasses you can have a look at all messages understood by an instance of SmallInteger.