1 #![feature(associated_type_defaults)]
2 #![feature(bool_to_option)]
3 #![feature(box_patterns)]
4 #![feature(box_syntax)]
5 #![feature(exact_size_is_empty)]
7 #![feature(min_specialization)]
9 #![feature(stmt_expr_attributes)]
10 #![feature(trusted_step)]
11 #![recursion_limit = "256"]
16 extern crate rustc_middle;
18 use rustc_ast::{self as ast, MetaItem};
20 use rustc_session::Session;
21 use rustc_span::symbol::{sym, Symbol};
23 pub use self::drop_flag_effects::{
24 drop_flag_effects_for_function_entry, drop_flag_effects_for_location,
25 move_path_children_matching, on_all_children_bits, on_all_drop_children_bits,
26 on_lookup_result_bits,
28 pub use self::framework::{
29 fmt, graphviz, lattice, visit_results, Analysis, AnalysisDomain, Backward, CallReturnPlaces,
30 Direction, Engine, Forward, GenKill, GenKillAnalysis, JoinSemiLattice, Results, ResultsCursor,
31 ResultsRefCursor, ResultsVisitable, ResultsVisitor,
34 use self::move_paths::MoveData;
36 pub mod drop_flag_effects;
37 pub mod elaborate_drops;
44 pub(crate) mod indexes {
45 pub(crate) use super::move_paths::MovePathIndex;
48 pub struct MoveDataParamEnv<'tcx> {
49 pub move_data: MoveData<'tcx>,
50 pub param_env: ty::ParamEnv<'tcx>,
53 pub fn has_rustc_mir_with(
55 attrs: &[ast::Attribute],
57 ) -> Option<MetaItem> {
59 if attr.has_name(sym::rustc_mir) {
60 let items = attr.meta_item_list();
61 for item in items.iter().flat_map(|l| l.iter()) {
62 match item.meta_item() {
63 Some(mi) if mi.has_name(name) => return Some(mi.clone()),