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1fc6dbc32b
Add inline const and other possible curly brace expressions to expr_trailing_brace Add tests for `}` before `else` in `let...else` error Change to explicit cases for expressions with optional values when being checked for trailing braces Add tests for more complex cases of `}` before `else` in `let..else` statement Move other possible `}` cases into separate arm and add FIXME for future reference
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: