Expand description

The main parser interface.

Modules

Meta-syntax validation logic of attributes for post-expansion.

Macros

If the next tokens are ill-formed $ty:: recover them as <$ty>::.

Like maybe_whole_expr, but for things other than expressions.

A variant of ‘panictry!’ that works on a Vec instead of a single DiagnosticBuilder.

Constants

Functions

Given a session and a path and an optional span (for error reporting), adds the path to the session’s source_map and returns the new source_file.

Given a source file, produces a sequence of token trees. Returns any buffered errors from parsing the token stream.

Creates a new parser from a source string. Returns any buffered errors from lexing the initial token stream.

Given a source_file and config, return a parser. Returns any buffered errors from lexing the initial token stream.

Creates a new parser, handling errors as appropriate if the file doesn’t exist. If a span is given, that is used on an error as the source of the problem.

Creates a new parser from a source string.

Runs the given subparser f on the tokens of the given attr’s item.

Given a source_file and config, returns a parser.

Given a source_file, produces a sequence of token trees.

Given a stream and the ParseSess, produces a parser.

Given a session and a path and an optional span (for error reporting), add the path to the session’s source_map and return the new source_file or error when a file can’t be read.