| use core::unicode::property::Pattern_White_Space; |
| use rustc::ty::TyCtxt; |
| use syntax_pos::Span; |
| |
| pub mod aggregate; |
| pub mod borrowck_errors; |
| pub mod elaborate_drops; |
| pub mod def_use; |
| pub mod patch; |
| |
| mod alignment; |
| mod graphviz; |
| pub(crate) mod pretty; |
| pub mod liveness; |
| pub mod collect_writes; |
| |
| pub use self::aggregate::expand_aggregate; |
| pub use self::alignment::is_disaligned; |
| pub use self::pretty::{dump_enabled, dump_mir, write_mir_pretty, PassWhere}; |
| pub use self::graphviz::{graphviz_safe_def_name, write_mir_graphviz}; |
| pub use self::graphviz::write_node_label as write_graphviz_node_label; |
| |
| /// If possible, suggest replacing `ref` with `ref mut`. |
| pub fn suggest_ref_mut<'tcx>(tcx: TyCtxt<'tcx>, binding_span: Span) -> Option<(String)> { |
| let hi_src = tcx.sess.source_map().span_to_snippet(binding_span).unwrap(); |
| if hi_src.starts_with("ref") |
| && hi_src["ref".len()..].starts_with(Pattern_White_Space) |
| { |
| let replacement = format!("ref mut{}", &hi_src["ref".len()..]); |
| Some(replacement) |
| } else { |
| None |
| } |
| } |