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rust/src/libsyntax
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Alex Crichton 2885632706 rustc: Allow an edition's feature on that edition 
This commit fixes a hard error where the `#![feature(rust_2018_preview)]`
feature was forbidden to be mentioned when the `--edition 2018` flag was passed.
This instead silently accepts that feature gate despite it not being necessary.
It's intended that this will help ease the transition into the 2018 edition as
users will, for the time being, start off with the `rust_2018_preview` feature
and no longer immediately need to remove it.

Closes #50662
2018-05-12 08:39:05 -06:00
..
diagnostics Allow raw identifiers in diagnostic macros. 2018-03-18 13:27:56 -05:00
ext Auto merge of #50413 - kennytm:rollup, r=kennytm 2018-05-03 20:45:54 +00:00
parse Fix tuple struct field spans 2018-05-10 09:15:47 -07:00
print Fix assertion message generation 2018-05-06 12:13:32 +09:00
util AST/HIR: Merge field access expressions for named and numeric fields 2018-04-12 23:02:09 +03:00
ast.rs make it compile again 2018-05-02 12:05:13 +02:00
attr.rs Auto merge of #50030 - flip1995:rfc2103, r=petrochenkov 2018-05-03 11:52:03 +00:00
build.rs rustc: Add some build scripts for librustc crates 2017-07-22 22:04:13 -07:00
Cargo.toml rustc_target: move in syntax::abi and flip dependency. 2018-04-26 17:49:16 +03:00
codemap.rs CodeMap functions refactored. 2018-03-18 20:46:29 -03:00
config.rs Rename ast::Variant_::name into ident + Fix rebase 2018-04-06 11:48:19 +03:00
diagnostic_list.rs Auto merge of #50030 - flip1995:rfc2103, r=petrochenkov 2018-05-03 11:52:03 +00:00
edition.rs Rename the 2018 edition lint names 2018-05-10 11:28:11 -07:00
entry.rs Cleanup InternedString. 2016-11-21 09:00:56 +00:00
feature_gate.rs rustc: Allow an edition's feature on that edition 2018-05-12 08:39:05 -06:00
fold.rs AST/HIR: Merge field access expressions for named and numeric fields 2018-04-12 23:02:09 +03:00
json.rs Approximate -> Applicability 2018-04-25 14:55:25 -07:00
lib.rs Use escape_default() for strings in LitKind::token(). 2018-05-03 10:31:39 +10:00
ptr.rs syntax: Rename P::unwrap into P::into_inner 2017-12-17 02:21:29 +03:00
README.md Replace many of the last references to readmes 2018-03-16 12:43:22 -05:00
show_span.rs use field init shorthand EVERYWHERE 2017-08-15 15:29:17 -07:00
std_inject.rs Reorder injection of std to get better compilation error 2018-04-16 12:28:30 -07:00
str.rs syntax: Copy unstable str::char_at into libsyntax 2015-04-21 10:23:53 -07:00
test.rs Fixed tidy errors. 2018-04-26 17:49:24 +03:00
test_snippet.rs Remove syntax and syntax_pos thread locals 2018-03-14 11:56:01 +01:00
tokenstream.rs proc_macro: Stay on the "use the cache" path more 2018-04-18 19:36:48 -07:00
visit.rs rustc_target: move in syntax::abi and flip dependency. 2018-04-26 17:49:16 +03:00

README.md

The syntax crate contains those things concerned purely with syntax – that is, the AST ("abstract syntax tree"), parser, pretty-printer, lexer, macro expander, and utilities for traversing ASTs.

For more information about how these things work in rustc, see the rustc guide: