Matlab navigate function workspace

Question

I am looking for a way to access variables from other workspaces, in particular the workspace from which the current function is called.

I know how to do it in the simple case:

% Get a variable called `x` from the base workspace
x = evalin('base', 'x');

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However, think of a situation where my function myFun, is called by many different functions (which I cannot edit). And I just know that each of them will have a variable x.

Now, how would I be able to see the variable x from the workspace in which myFun is called?

So I guess the key point in my question is:

How can I programmatically navigate to the above workspace?

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Here is how it can be done manually:

1. Set a breakpoint
2. Once the breakpoint is hit use dbup
3. Find x and look at it (or do something with it (with evalin or save/load for example)
4. Hit f5

Answer 1

How about:

x = evalin('caller', 'x')

There is a limitation however, from Matlab's documentation:

evalin cannot be used recursively to evaluate an expression. For example, a sequence of the form evalin('caller','evalin(''caller'', ''x'')') doesn't work.

However, evalin is not a great function. Any usage should be avoided imho.