[Lazarus] CodeTools: what is an "identifier"

[Bernd Kreuss]

Bernd Kreuss wrote:

> The understanding of the codetools seems to be essential for doing any
> non-trivial thing inside the IDE.

For example as an application of the codtools I have a tool in mind that
would help me exploring a big codebase with a lot of calls through
different abstraction layers that can easily confuse me when trying to
read the code and follow wrapper calls 3 or 4 levels deep and still
remember where I came from. I will soon have 5 editor windows open and
some of then are scrolled to a different position because the calls go
back and forth throughout all these files.

This tool would help me build a tree starting with the current method,
listing all calls to other methods inside the method body as subnodes of
this node and when I click on one of the subnodes it will again list all
method calls inside the called method as subnodes of *this* node,
letting me grow this tree only into the branches that are of interest to
me. Whenever I click a node the editor window will immediately
open/scroll directly to the *implementation* so I can always see the
actual code and can quickly jump around in what could be described as
the "callstack" of the simulation in my brain, without ever losing track
of where I came from or where I have been already.

For implementing this tool I need a deep understanding of the codetools
and what can be done with them and how they are used to their full
potential.

Bernd