Delay several is_from_proc_macro checks

This commit is contained in:
Jason Newcomb 2023-09-19 16:32:05 -04:00
parent 184845fb0c
commit f3f2f17478
7 changed files with 27 additions and 25 deletions

View File

@ -48,11 +48,10 @@
impl<'tcx> LateLintPass<'tcx> for AsConversions {
fn check_expr(&mut self, cx: &LateContext<'tcx>, expr: &Expr<'tcx>) {
if in_external_macro(cx.sess(), expr.span) || is_from_proc_macro(cx, expr) {
return;
}
if let ExprKind::Cast(_, _) = expr.kind {
if let ExprKind::Cast(_, _) = expr.kind
&& !in_external_macro(cx.sess(), expr.span)
&& !is_from_proc_macro(cx, expr)
{
span_lint_and_help(
cx,
AS_CONVERSIONS,

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@ -57,7 +57,6 @@ fn check_expr(&mut self, cx: &LateContext<'tcx>, e: &rustc_hir::Expr<'tcx>) {
&& !matches!(deref_target.kind, ExprKind::Unary(UnOp::Deref, ..))
&& let ref_ty = cx.typeck_results().expr_ty(deref_target)
&& let ty::Ref(_, inner_ty, Mutability::Not) = ref_ty.kind()
&& !is_from_proc_macro(cx, e)
{
if let Some(parent_expr) = get_parent_expr(cx, e) {
if matches!(parent_expr.kind, ExprKind::Unary(UnOp::Deref, ..))
@ -75,6 +74,9 @@ fn check_expr(&mut self, cx: &LateContext<'tcx>, e: &rustc_hir::Expr<'tcx>) {
return;
}
}
if is_from_proc_macro(cx, e) {
return;
}
span_lint_and_then(
cx,

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@ -105,7 +105,6 @@ fn check_expr(&mut self, cx: &LateContext<'tcx>, expr: &'tcx Expr<'tcx>) {
// case somebody does that for some reason
&& (is_infinity(const_1) && is_neg_infinity(const_2)
|| is_neg_infinity(const_1) && is_infinity(const_2))
&& !is_from_proc_macro(cx, expr)
&& let Some(local_snippet) = snippet_opt(cx, first.span)
{
let variant = match (kind.node, lhs_kind.node, rhs_kind.node) {
@ -113,6 +112,9 @@ fn check_expr(&mut self, cx: &LateContext<'tcx>, expr: &'tcx Expr<'tcx>) {
(BinOpKind::And, BinOpKind::Ne, BinOpKind::Ne) => Variant::ManualIsFinite,
_ => return,
};
if is_from_proc_macro(cx, expr) {
return;
}
span_lint_and_then(cx, variant.lint(), expr.span, variant.msg(), |diag| {
match variant {

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@ -19,10 +19,6 @@ pub(super) fn check<'tcx>(
arg: &'tcx hir::Expr<'_>,
simplify_using: &str,
) {
if is_from_proc_macro(cx, expr) {
return;
}
let is_option = is_type_diagnostic_item(cx, cx.typeck_results().expr_ty(recv), sym::Option);
let is_result = is_type_diagnostic_item(cx, cx.typeck_results().expr_ty(recv), sym::Result);
let is_bool = cx.typeck_results().expr_ty(recv).is_bool();
@ -32,7 +28,7 @@ pub(super) fn check<'tcx>(
let body = cx.tcx.hir().body(body);
let body_expr = &body.value;
if usage::BindingUsageFinder::are_params_used(cx, body) {
if usage::BindingUsageFinder::are_params_used(cx, body) || is_from_proc_macro(cx, expr) {
return;
}

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@ -44,7 +44,6 @@ fn check_stmt<'tcx>(&mut self, cx: &LateContext<'tcx>, stmt: &Stmt<'tcx>) {
&& block.stmts.is_empty()
&& block.expr.is_none()
&& !in_external_macro(cx.sess(), expr.span)
&& !is_from_proc_macro(cx, expr)
&& let Some(then_snippet) = snippet_opt(cx, then.span)
// Ignore
// - empty macro expansions
@ -53,6 +52,7 @@ fn check_stmt<'tcx>(&mut self, cx: &LateContext<'tcx>, stmt: &Stmt<'tcx>) {
// - #[cfg]'d out code
&& then_snippet.chars().all(|ch| matches!(ch, '{' | '}') || ch.is_ascii_whitespace())
&& let Some(cond_snippet) = snippet_opt(cx, cond.span)
&& !is_from_proc_macro(cx, expr)
{
span_lint_and_sugg(
cx,

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@ -132,7 +132,11 @@ fn is_integral(ty: Ty<'_>) -> bool {
}
// Common entry-point to avoid code duplication.
fn issue_lint(&mut self, cx: &LateContext<'_>, expr: &hir::Expr<'_>) {
fn issue_lint<'tcx>(&mut self, cx: &LateContext<'tcx>, expr: &'tcx hir::Expr<'_>) {
if is_from_proc_macro(cx, expr) {
return;
}
let msg = "arithmetic operation that can potentially result in unexpected side-effects";
span_lint(cx, ARITHMETIC_SIDE_EFFECTS, expr.span, msg);
self.expr_span = Some(expr.span);
@ -160,10 +164,10 @@ fn literal_integer(cx: &LateContext<'_>, expr: &hir::Expr<'_>) -> Option<u128> {
fn manage_bin_ops<'tcx>(
&mut self,
cx: &LateContext<'tcx>,
expr: &hir::Expr<'tcx>,
expr: &'tcx hir::Expr<'_>,
op: &Spanned<hir::BinOpKind>,
lhs: &hir::Expr<'tcx>,
rhs: &hir::Expr<'tcx>,
lhs: &'tcx hir::Expr<'_>,
rhs: &'tcx hir::Expr<'_>,
) {
if constant_simple(cx, cx.typeck_results(), expr).is_some() {
return;
@ -236,10 +240,10 @@ fn manage_bin_ops<'tcx>(
/// provided input.
fn manage_method_call<'tcx>(
&mut self,
args: &[hir::Expr<'tcx>],
args: &'tcx [hir::Expr<'_>],
cx: &LateContext<'tcx>,
ps: &hir::PathSegment<'tcx>,
receiver: &hir::Expr<'tcx>,
ps: &'tcx hir::PathSegment<'_>,
receiver: &'tcx hir::Expr<'_>,
) {
let Some(arg) = args.first() else {
return;
@ -264,8 +268,8 @@ fn manage_method_call<'tcx>(
fn manage_unary_ops<'tcx>(
&mut self,
cx: &LateContext<'tcx>,
expr: &hir::Expr<'tcx>,
un_expr: &hir::Expr<'tcx>,
expr: &'tcx hir::Expr<'_>,
un_expr: &'tcx hir::Expr<'_>,
un_op: hir::UnOp,
) {
let hir::UnOp::Neg = un_op else {
@ -287,14 +291,13 @@ fn manage_unary_ops<'tcx>(
fn should_skip_expr<'tcx>(&mut self, cx: &LateContext<'tcx>, expr: &hir::Expr<'tcx>) -> bool {
is_lint_allowed(cx, ARITHMETIC_SIDE_EFFECTS, expr.hir_id)
|| is_from_proc_macro(cx, expr)
|| self.expr_span.is_some()
|| self.const_span.map_or(false, |sp| sp.contains(expr.span))
}
}
impl<'tcx> LateLintPass<'tcx> for ArithmeticSideEffects {
fn check_expr(&mut self, cx: &LateContext<'tcx>, expr: &hir::Expr<'tcx>) {
fn check_expr(&mut self, cx: &LateContext<'tcx>, expr: &'tcx hir::Expr<'tcx>) {
if self.should_skip_expr(cx, expr) {
return;
}

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@ -72,8 +72,8 @@ fn check_fn(
) {
if self.avoid_breaking_exported_api && cx.effective_visibilities.is_exported(def_id)
|| in_external_macro(cx.sess(), span)
|| is_from_proc_macro(cx, &(&kind, body, cx.tcx.local_def_id_to_hir_id(def_id), span))
|| is_in_test_function(cx.tcx, body.value.hir_id)
|| is_from_proc_macro(cx, &(&kind, body, cx.tcx.local_def_id_to_hir_id(def_id), span))
{
return;
}