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8b35f8e41e
rust/compiler/rustc_ast
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Nicholas Nethercote 8b35f8e41e Remove LitError::LexerError. 
`cook_lexer_literal` can emit an error about an invalid int literal but
then return a non-`Err` token. And then `integer_lit` has to account for
this to avoid printing a redundant error message.

This commit changes `cook_lexer_literal` to return `Err` in that case.
Then `integer_lit` doesn't need the special case, and
`LitError::LexerError` can be removed.
2024-02-15 12:58:18 +11:00
..
src Remove LitError::LexerError. 2024-02-15 12:58:18 +11:00
Cargo.toml Pin memchr version 2024-02-13 21:03:34 +00:00
README.md docs(rustc_ast): update crate descriptions 2021-11-02 21:11:17 -05:00

README.md

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: