Crate rustc_ast

The Rust Abstract Syntax Tree (AST).

Note

This API is completely unstable and subject to change.

Re-exports

• pub use self::ast_traits::AstDeref;
• pub use self::ast_traits::AstNodeWrapper;
• pub use self::ast_traits::HasAttrs;
• pub use self::ast_traits::HasNodeId;
• pub use self::ast_traits::HasSpan;
• pub use self::ast_traits::HasTokens;
• pub use self::ast::*;

Modules

• ast
  The Rust abstract syntax tree module.
• ast_traits
  A set of traits implemented for various AST nodes, typically those used in AST fragments during macro expansion. The traits are not implemented exhaustively, only when actually necessary.
• attr
  Functions dealing with attributes and meta items.
• entry
• expand
  Definitions shared by macros / syntax extensions and e.g. rustc_middle.
• format
• mut_visit
  A MutVisitor represents an AST modification; it accepts an AST piece and mutates it in place. So, for instance, macro expansion is a MutVisitor that walks over an AST and modifies it.
• node_id
• ptr
  The AST pointer.
• token
• tokenstream
  Token Streams
• util
• visit
  AST walker. Each overridden visit method has full control over what happens with its node, it can do its own traversal of the node’s children, call visit::walk_* to apply the default traversal algorithm, or prevent deeper traversal by doing nothing.

Traits

• HashStableContext
  Requirements for a StableHashingContext to be used in this crate. This is a hack to allow using the HashStable_Generic derive macro instead of implementing everything in rustc_middle.