Crate parser

The Rust parser.

NOTE: The crate is undergoing refactors, don’t believe everything the docs say :-)

The parser doesn’t know about concrete representation of tokens and syntax trees. Abstract [TokenSource] and [TreeSink] traits are used instead. As a consequence, this crate does not contain a lexer.

The Parser struct from the parser module is a cursor into the sequence of tokens. Parsing routines use Parser to inspect current state and advance the parsing.

The actual parsing happens in the [grammar] module.

Tests for this crate live in the syntax crate.

Macros

• T

Structs

• Input
  Input for the parser – a sequence of tokens.
• LexedStr
• Output
  Output of the parser – a DFS traversal of a concrete syntax tree.
• Reparser
  A parsing function for a specific braced-block.

Enums

• Edition
• PrefixEntryPoint
  Parse a prefix of the input as a given syntactic construct.
• Step
• StrStep
• SyntaxKind
  The kind of syntax node, e.g. IDENT, USE_KW, or STRUCT.
• TopEntryPoint
  Parse the whole of the input as a given syntactic construct.