Hi, I was wondering about the scope of required/used modules. A project I'm working has a large number of dependencies, and I'm afraid that they will cause some undesired results.(Although there exists no circular dependencies) Below is two minor examples to illustrate my point:

(Bold letters are modules, means 'X' requires 'Y')

A ---> B

A ---> C

C ---> B

Q: Why can module B access A or C content?

Q: Can A access B content without requiring B directly? (Since it is an implicit link there already)

Q: If a module is required twice, is there any mechanism like in C++ that can check if a module is required twice and in that case skip any redundant require's ?

In another example I might have a sequential list of modules:

A ---> B

B ---> C

C ---> D

A ---> D

Q: Is the last require of A to D redundant? i.e. Can A access D without it?

Two other general questions:

Q: Is there any "best practices" for how you require/use modules?

Q: Can I use the naming convention 'module' and 'package' interchangeably or is there any significant difference?

In reply to Scope of required modules by rapide

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