this post was submitted on 03 Mar 2024
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Programming Languages
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What's the intention and use case for this?
Only for empty, unlabeled, untyped scopes? Or would I write
Is it necessary for scope-ending cleanup of resources? If so, I would consider whether there are not better solutions for those.
Is it for code structuring? I would also consider what use a scope keyword has then, and what the alternatives are.
I don't see how adding a scope label helps with anything.
To be honest, the only use case I really thought of was something like unlocking a mutex at the end of a scope or maybe a file.
In that case managed languages like python and java combine that functionality with
try
blocks. This is generally called try with resources.C# has the
using
keyword that just uses local scope.The commonality between them is declaring which resource is managed, not just everything is a scope. Imagine you wanted to manage one resource and return another.
I was just thinking about Python's
with