rust-lang / rust-lang/rfcs

Support flattening of tuples

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#2,138 15 comments 19 reactions 0 assignees View on GitHub

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Description

I believe that there should be some way of flattening a tuple. The most common reason is probably from a macro or within one that calls a function that returns a tuple but the result of the macro is a flattened tuple.

Example:

(5, (10, "Hello World")) -> (5, 10, "Hello World")

This is currently not possible I believe

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  3. Fork the repository and make your change on a branch.
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Research direction

Issue #2138 proposes tuple flattening but names no source file, test, or implementation entry point. Start by reviewing the RFC process and related tuple discussions, then establish the semantics and acceptance criteria for flattening nested tuples before any implementation work.

Written by the indexing model from the issue text.

Assessment

Tech stack
rust
Domain
compilers
Issue type
Feature
Difficulty
5/5
Estimated time
Over a week
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
25/100

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