Aaron Hill f9025512e7 Add SEMICOLON_IN_EXPRESSIONS_FROM_MACROS lint ... cc #79813 This PR adds an allow-by-default future-compatibility lint `SEMICOLON_IN_EXPRESSIONS_FROM_MACROS`. It fires when a trailing semicolon in a macro body is ignored due to the macro being used in expression position: ```rust macro_rules! foo { () => { true; // WARN } } fn main() { let val = match true { true => false, _ => foo!() }; } ``` The lint takes its level from the macro call site, and can be allowed for a particular macro by adding `#[allow(semicolon_in_expressions_from_macros)]`. The lint is set to warn for all internal rustc crates (when being built by a stage1 compiler). After the next beta bump, we can enable the lint for the bootstrap compiler as well.		2021-01-28 08:51:43 -05:00
..
late	Avoid emitting redundant "unused label" lint	2021-01-21 21:41:46 -08:00
build_reduced_graph.rs	resolve: Simplify collection of traits in scope	2021-01-11 23:49:47 +03:00
check_unused.rs	Attach TokenStream to ast::Visibility	2020-09-10 17:33:06 -04:00
def_collector.rs	resolve/expand: Improve attribute expansion on macro definitions and calls	2021-01-09 18:43:01 +03:00
diagnostics.rs	resolve: Reject ambiguity built-in attr vs different built-in attr	2021-01-17 01:48:17 +03:00
imports.rs	Move lev_distance to rustc_ast, make non-generic	2020-11-24 16:12:23 -08:00
late.rs	Fix clippy and comment	2021-01-21 21:43:28 -08:00
lib.rs	Add more self-profile info to rustc_resolve	2021-01-21 18:15:17 -05:00
macros.rs	Add SEMICOLON_IN_EXPRESSIONS_FROM_MACROS lint	2021-01-28 08:51:43 -05:00