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ed81e347f1
Add `*_value` methods to proc_macro lib This is the (re-)implementation of https://github.com/rust-lang/libs-team/issues/459. It allows to get the actual value (unescaped) of the different string literals. It was originally done in https://github.com/rust-lang/rust/pull/136355 but it broke the artifacts build so we decided to move the crate to crates.io to go around this limitation. Part of https://github.com/rust-lang/rust/issues/136652. Considering this is a copy-paste of the originally approved PR, no need to go through the whole process again. \o/ r? `@Urgau`
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: