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use rustc_ast::{self as ast, MetaItem};
use rustc_middle::ty;
use rustc_session::Session;
use rustc_span::symbol::{sym, Symbol};
pub(crate) use self::drop_flag_effects::*;
pub use self::framework::{
fmt, graphviz, lattice, visit_results, Analysis, AnalysisDomain, Backward, BorrowckFlowState,
BorrowckResults, Engine, Forward, GenKill, GenKillAnalysis, JoinSemiLattice, Results,
ResultsCursor, ResultsRefCursor, ResultsVisitor, SwitchIntEdgeEffects,
};
use self::move_paths::MoveData;
pub mod drop_flag_effects;
mod framework;
pub mod impls;
pub mod move_paths;
pub(crate) mod indexes {
pub(crate) use super::{
impls::borrows::BorrowIndex,
move_paths::{InitIndex, MoveOutIndex, MovePathIndex},
};
}
pub struct MoveDataParamEnv<'tcx> {
pub(crate) move_data: MoveData<'tcx>,
pub(crate) param_env: ty::ParamEnv<'tcx>,
}
pub(crate) fn has_rustc_mir_with(
_sess: &Session,
attrs: &[ast::Attribute],
name: Symbol,
) -> Option<MetaItem> {
for attr in attrs {
if attr.has_name(sym::rustc_mir) {
let items = attr.meta_item_list();
for item in items.iter().flat_map(|l| l.iter()) {
match item.meta_item() {
Some(mi) if mi.has_name(name) => return Some(mi.clone()),
_ => continue,
}
}
}
}
None
}
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