use clippy_utils::diagnostics::span_lint_and_then;
+use clippy_utils::macros::{is_panic, root_macro_call_first_node};
+use clippy_utils::method_chain_args;
use clippy_utils::ty::is_type_diagnostic_item;
-use clippy_utils::{is_expn_of, match_panic_def_id, method_chain_args};
use if_chain::if_chain;
use rustc_hir as hir;
use rustc_lint::{LateContext, LateLintPass};
-use rustc_middle::hir::map::Map;
use rustc_middle::ty;
use rustc_session::{declare_lint_pass, declare_tool_lint};
use rustc_span::{sym, Span};
}
fn lint_impl_body<'tcx>(cx: &LateContext<'tcx>, impl_span: Span, impl_items: &[hir::ImplItemRef]) {
- use rustc_hir::intravisit::{self, NestedVisitorMap, Visitor};
- use rustc_hir::{Expr, ExprKind, ImplItemKind, QPath};
+ use rustc_hir::intravisit::{self, Visitor};
+ use rustc_hir::{Expr, ImplItemKind};
struct FindPanicUnwrap<'a, 'tcx> {
lcx: &'a LateContext<'tcx>,
}
impl<'a, 'tcx> Visitor<'tcx> for FindPanicUnwrap<'a, 'tcx> {
- type Map = Map<'tcx>;
-
fn visit_expr(&mut self, expr: &'tcx Expr<'_>) {
- // check for `begin_panic`
- if_chain! {
- if let ExprKind::Call(func_expr, _) = expr.kind;
- if let ExprKind::Path(QPath::Resolved(_, path)) = func_expr.kind;
- if let Some(path_def_id) = path.res.opt_def_id();
- if match_panic_def_id(self.lcx, path_def_id);
- if is_expn_of(expr.span, "unreachable").is_none();
- then {
+ if let Some(macro_call) = root_macro_call_first_node(self.lcx, expr) {
+ if is_panic(self.lcx, macro_call.def_id) {
self.result.push(expr.span);
}
}
// and check sub-expressions
intravisit::walk_expr(self, expr);
}
-
- fn nested_visit_map(&mut self) -> NestedVisitorMap<Self::Map> {
- NestedVisitorMap::None
- }
}
for impl_item in impl_items {