Closures practice problems in Rust

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Showing 15 of 15

Status	Title	Difficulty	Category	Tags
	Box<dyn Trait>: trait objects, DSTs and dynamic dispatch	Medium	Primitives
	Closures 101: build a pipeline of boxed closures	Easy	Primitives
	Closures hold their borrows	Medium	Primitives
	Fn, FnMut, FnOnce: the closure hierarchy	Medium	Primitives
	Folding an AST: separating traversal from action	Hard	End-to-End
	from_fn and successors: iterators without writing a struct	Easy	Primitives
	Laziness: prove the pipeline interleaves	Easy	Primitives
	move closures: why the compiler forces your hand	Easy	Primitives
	move: when the closure must own its captures	Medium	Primitives
	`poll_fn`: a future from a closure	Easy	Primitives
	Returning impl Trait, and what edition 2024 changed	Hard	Primitives
	The FnMut borrow gauntlet: a log you can read afterwards	Medium	Primitives
	Trait objects and lifetimes: Box<dyn Trait + 'a>	Hard	Primitives
	`T: 'static` in practice — a type-erased handler registry	Hard	End-to-End
	unsafe impl Send, and the disjoint-capture trap	Hard	Framework