Crate rustc_parse

The main parser interface.

Modules

errors 🔒

lexer

parser

validate_attr

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

Macros

maybe_recover_from_interpolated_ty_qpath

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

maybe_whole

Like maybe_whole_expr, but for things other than expressions.

panictry_buffer 🔒

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

Constants

CFG_ATTR_GRAMMAR_HELP 🔒

CFG_ATTR_NOTE_REF 🔒

MACRO_ARGUMENTS

Functions

error_malformed_cfg_attr_missing 🔒

fake_token_stream_for_crate

fake_token_stream_for_item

file_to_source_file 🔒

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.

maybe_file_to_stream

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

maybe_new_parser_from_source_str

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

maybe_source_file_to_parser 🔒

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

new_parser_from_file

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.

new_parser_from_source_str

Creates a new parser from a source string.

parse_cfg_attr

parse_crate_attrs_from_file

parse_crate_attrs_from_source_str

parse_crate_from_file

parse_crate_from_source_str

parse_in

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

parse_stream_from_source_str

source_file_to_parser 🔒

Given a session and a source_file, returns a parser.

source_file_to_stream

Given a source_file, produces a sequence of token trees.

stream_to_parser

Given a stream and the ParseSess, produces a parser.

try_file_to_source_file 🔒

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.