Crate lexx

Rust Lex

The goal of this crate is to make interacting with the AST construct parts of Rust a little easier. It is more or less a high level wrapping around the various syntex_syntax crates. Those crates have partially complete documentation. This crate is the result of a few days of trial and error.

Some of the public types will force you to jump into the syntex crates, but it should only be inspecting tokens/error messages.

Structs

• Delimited
  A delimited sequence of token trees
• DiagnosticBuilder
  Used for emitting structured error messages and other diagnostic information.
• IOErr
  The error type for I/O operations of the Read, Write, Seek, and associated traits.
• Parser
  Parser type
• SequenceRepetition
  A sequence of token trees

Enums

• DelimToken
  A delimiter token
• Fault
  Error Wrapper
• Token
• TokenTree
  When the main rust parser encounters a syntax-extension invocation, it parses the arguments to the invocation as a token-tree. This is a very loose structure, such that all sorts of different AST-fragments can be passed to syntax extensions using a uniform type.

Functions

• dr
  For deconstructor a branch of TokenTree into a usable type
• flatten_token_tree
  Flatten TokenTree
• sr
  For deconstructor a branch of TokenTree into a usable type
• tt
  For dispatching to dr/sr for deconstructing TokenTrees