1 use rustc_ast::{self as ast, MetaItem};
3 use rustc_session::Session;
4 use rustc_span::symbol::{sym, Symbol};
6 pub(crate) use self::drop_flag_effects::*;
7 pub use self::framework::{
8 fmt, lattice, visit_results, Analysis, AnalysisDomain, Backward, BorrowckFlowState,
9 BorrowckResults, Engine, Forward, GenKill, GenKillAnalysis, JoinSemiLattice, Results,
10 ResultsCursor, ResultsRefCursor, ResultsVisitor,
13 use self::move_paths::MoveData;
15 pub mod drop_flag_effects;
20 pub(crate) mod indexes {
21 pub(crate) use super::{
22 impls::borrows::BorrowIndex,
23 move_paths::{InitIndex, MoveOutIndex, MovePathIndex},
27 pub struct MoveDataParamEnv<'tcx> {
28 pub(crate) move_data: MoveData<'tcx>,
29 pub(crate) param_env: ty::ParamEnv<'tcx>,
32 pub(crate) fn has_rustc_mir_with(
34 attrs: &[ast::Attribute],
36 ) -> Option<MetaItem> {
38 if sess.check_name(attr, sym::rustc_mir) {
39 let items = attr.meta_item_list();
40 for item in items.iter().flat_map(|l| l.iter()) {
41 match item.meta_item() {
42 Some(mi) if mi.has_name(name) => return Some(mi.clone()),