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af315b0725
add span to struct pattern rest (..) Struct pattern rest (`..`) did not retain span information compared to normal fields. This patch adds span information for it. The motivation of this patch comes from when I implemented this PR for Clippy: https://github.com/rust-lang/rust-clippy/pull/15000#discussion_r2134145163 It is possible to get the span of the Et cetera in a bit roundabout way, but I thought this would be nicer.
The rustc_ast crate contains those things concerned purely with syntax
– that is, the AST ("abstract syntax tree"), along with some definitions for tokens and token streams, data structures/traits for mutating ASTs, and shared definitions for other AST-related parts of the compiler (like the lexer and macro-expansion).
For more information about how these things work in rustc, see the rustc dev guide: