Auto merge of #10310 - c410-f3r:arith-2, r=Alexendoo

[arithmetic_side_effects] Fix #10209

Fix #10209

---

changelog: Enhancement: [`arithmetic_side_effects`]: No longer lints, if safe constant values are used.
[#10310](https://github.com/rust-lang/rust-clippy/pull/10310)
<!-- changelog_checked -->
This commit is contained in:
bors 2023-02-12 19:34:15 +00:00
commit 6f353fdf0a
3 changed files with 146 additions and 112 deletions

View File

@ -1,8 +1,8 @@
use super::ARITHMETIC_SIDE_EFFECTS;
use clippy_utils::{
consts::{constant, constant_simple},
consts::{constant, constant_simple, Constant},
diagnostics::span_lint,
peel_hir_expr_refs, peel_hir_expr_unary,
is_lint_allowed, peel_hir_expr_refs, peel_hir_expr_unary,
};
use rustc_ast as ast;
use rustc_data_structures::fx::{FxHashMap, FxHashSet};
@ -97,17 +97,19 @@ impl ArithmeticSideEffects {
self.expr_span = Some(expr.span);
}
/// If `expr` is not a literal integer like `1`, returns `None`.
/// Returns the numeric value of a literal integer originated from `expr`, if any.
///
/// Returns the absolute value of the expression, if this is an integer literal.
fn literal_integer(expr: &hir::Expr<'_>) -> Option<u128> {
/// Literal integers can be originated from adhoc declarations like `1`, associated constants
/// like `i32::MAX` or constant references like `N` from `const N: i32 = 1;`,
fn literal_integer(cx: &LateContext<'_>, expr: &hir::Expr<'_>) -> Option<u128> {
let actual = peel_hir_expr_unary(expr).0;
if let hir::ExprKind::Lit(ref lit) = actual.kind && let ast::LitKind::Int(n, _) = lit.node {
Some(n)
return Some(n)
}
else {
None
if let Some((Constant::Int(n), _)) = constant(cx, cx.typeck_results(), expr) {
return Some(n);
}
None
}
/// Manages when the lint should be triggered. Operations in constant environments, hard coded
@ -143,7 +145,10 @@ impl ArithmeticSideEffects {
let has_valid_op = if Self::is_integral(lhs_ty) && Self::is_integral(rhs_ty) {
let (actual_lhs, lhs_ref_counter) = peel_hir_expr_refs(lhs);
let (actual_rhs, rhs_ref_counter) = peel_hir_expr_refs(rhs);
match (Self::literal_integer(actual_lhs), Self::literal_integer(actual_rhs)) {
match (
Self::literal_integer(cx, actual_lhs),
Self::literal_integer(cx, actual_rhs),
) {
(None, None) => false,
(None, Some(n)) | (Some(n), None) => match (&op.node, n) {
(hir::BinOpKind::Div | hir::BinOpKind::Rem, 0) => false,
@ -180,20 +185,22 @@ impl ArithmeticSideEffects {
return;
}
let actual_un_expr = peel_hir_expr_refs(un_expr).0;
if Self::literal_integer(actual_un_expr).is_some() {
if Self::literal_integer(cx, actual_un_expr).is_some() {
return;
}
self.issue_lint(cx, expr);
}
fn should_skip_expr(&mut self, expr: &hir::Expr<'_>) -> bool {
self.expr_span.is_some() || self.const_span.map_or(false, |sp| sp.contains(expr.span))
fn should_skip_expr(&mut self, cx: &LateContext<'_>, expr: &hir::Expr<'_>) -> bool {
is_lint_allowed(cx, ARITHMETIC_SIDE_EFFECTS, expr.hir_id)
|| 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>) {
if self.should_skip_expr(expr) {
if self.should_skip_expr(cx, expr) {
return;
}
match &expr.kind {

View File

@ -13,6 +13,9 @@
use core::num::{Saturating, Wrapping};
const ONE: i32 = 1;
const ZERO: i32 = 0;
#[derive(Clone, Copy)]
pub struct Custom;
@ -182,6 +185,10 @@ pub fn non_overflowing_ops_or_ops_already_handled_by_the_compiler_should_not_tri
_n += &0;
_n -= 0;
_n -= &0;
_n += ZERO;
_n += &ZERO;
_n -= ZERO;
_n -= &ZERO;
_n /= 99;
_n /= &99;
_n %= 99;
@ -190,10 +197,18 @@ pub fn non_overflowing_ops_or_ops_already_handled_by_the_compiler_should_not_tri
_n *= &0;
_n *= 1;
_n *= &1;
_n *= ZERO;
_n *= &ZERO;
_n *= ONE;
_n *= &ONE;
_n += -0;
_n += &-0;
_n -= -0;
_n -= &-0;
_n += -ZERO;
_n += &-ZERO;
_n -= -ZERO;
_n -= &-ZERO;
_n /= -99;
_n /= &-99;
_n %= -99;
@ -208,10 +223,18 @@ pub fn non_overflowing_ops_or_ops_already_handled_by_the_compiler_should_not_tri
_n = _n + &0;
_n = 0 + _n;
_n = &0 + _n;
_n = _n + ZERO;
_n = _n + &ZERO;
_n = ZERO + _n;
_n = &ZERO + _n;
_n = _n - 0;
_n = _n - &0;
_n = 0 - _n;
_n = &0 - _n;
_n = _n - ZERO;
_n = _n - &ZERO;
_n = ZERO - _n;
_n = &ZERO - _n;
_n = _n / 99;
_n = _n / &99;
_n = _n % 99;
@ -222,6 +245,10 @@ pub fn non_overflowing_ops_or_ops_already_handled_by_the_compiler_should_not_tri
_n = &0 * _n;
_n = _n * 1;
_n = _n * &1;
_n = ZERO * _n;
_n = &ZERO * _n;
_n = _n * ONE;
_n = _n * &ONE;
_n = 1 * _n;
_n = &1 * _n;
_n = 23 + 85;

View File

@ -1,5 +1,5 @@
error: arithmetic operation that can potentially result in unexpected side-effects
--> $DIR/arithmetic_side_effects.rs:243:5
--> $DIR/arithmetic_side_effects.rs:270:5
|
LL | _n += 1;
| ^^^^^^^
@ -7,589 +7,589 @@ LL | _n += 1;
= note: `-D clippy::arithmetic-side-effects` implied by `-D warnings`
error: arithmetic operation that can potentially result in unexpected side-effects
--> $DIR/arithmetic_side_effects.rs:244:5
--> $DIR/arithmetic_side_effects.rs:271:5
|
LL | _n += &1;
| ^^^^^^^^
error: arithmetic operation that can potentially result in unexpected side-effects
--> $DIR/arithmetic_side_effects.rs:245:5
--> $DIR/arithmetic_side_effects.rs:272:5
|
LL | _n -= 1;
| ^^^^^^^
error: arithmetic operation that can potentially result in unexpected side-effects
--> $DIR/arithmetic_side_effects.rs:246:5
--> $DIR/arithmetic_side_effects.rs:273:5
|
LL | _n -= &1;
| ^^^^^^^^
error: arithmetic operation that can potentially result in unexpected side-effects
--> $DIR/arithmetic_side_effects.rs:247:5
--> $DIR/arithmetic_side_effects.rs:274:5
|
LL | _n /= 0;
| ^^^^^^^
error: arithmetic operation that can potentially result in unexpected side-effects
--> $DIR/arithmetic_side_effects.rs:248:5
--> $DIR/arithmetic_side_effects.rs:275:5
|
LL | _n /= &0;
| ^^^^^^^^
error: arithmetic operation that can potentially result in unexpected side-effects
--> $DIR/arithmetic_side_effects.rs:249:5
--> $DIR/arithmetic_side_effects.rs:276:5
|
LL | _n %= 0;
| ^^^^^^^
error: arithmetic operation that can potentially result in unexpected side-effects
--> $DIR/arithmetic_side_effects.rs:250:5
--> $DIR/arithmetic_side_effects.rs:277:5
|
LL | _n %= &0;
| ^^^^^^^^
error: arithmetic operation that can potentially result in unexpected side-effects
--> $DIR/arithmetic_side_effects.rs:251:5
--> $DIR/arithmetic_side_effects.rs:278:5
|
LL | _n *= 2;
| ^^^^^^^
error: arithmetic operation that can potentially result in unexpected side-effects
--> $DIR/arithmetic_side_effects.rs:252:5
--> $DIR/arithmetic_side_effects.rs:279:5
|
LL | _n *= &2;
| ^^^^^^^^
error: arithmetic operation that can potentially result in unexpected side-effects
--> $DIR/arithmetic_side_effects.rs:253:5
--> $DIR/arithmetic_side_effects.rs:280:5
|
LL | _n += -1;
| ^^^^^^^^
error: arithmetic operation that can potentially result in unexpected side-effects
--> $DIR/arithmetic_side_effects.rs:254:5
--> $DIR/arithmetic_side_effects.rs:281:5
|
LL | _n += &-1;
| ^^^^^^^^^
error: arithmetic operation that can potentially result in unexpected side-effects
--> $DIR/arithmetic_side_effects.rs:255:5
--> $DIR/arithmetic_side_effects.rs:282:5
|
LL | _n -= -1;
| ^^^^^^^^
error: arithmetic operation that can potentially result in unexpected side-effects
--> $DIR/arithmetic_side_effects.rs:256:5
--> $DIR/arithmetic_side_effects.rs:283:5
|
LL | _n -= &-1;
| ^^^^^^^^^
error: arithmetic operation that can potentially result in unexpected side-effects
--> $DIR/arithmetic_side_effects.rs:257:5
--> $DIR/arithmetic_side_effects.rs:284:5
|
LL | _n /= -0;
| ^^^^^^^^
error: arithmetic operation that can potentially result in unexpected side-effects
--> $DIR/arithmetic_side_effects.rs:258:5
--> $DIR/arithmetic_side_effects.rs:285:5
|
LL | _n /= &-0;
| ^^^^^^^^^
error: arithmetic operation that can potentially result in unexpected side-effects
--> $DIR/arithmetic_side_effects.rs:259:5
--> $DIR/arithmetic_side_effects.rs:286:5
|
LL | _n %= -0;
| ^^^^^^^^
error: arithmetic operation that can potentially result in unexpected side-effects
--> $DIR/arithmetic_side_effects.rs:260:5
--> $DIR/arithmetic_side_effects.rs:287:5
|
LL | _n %= &-0;
| ^^^^^^^^^
error: arithmetic operation that can potentially result in unexpected side-effects
--> $DIR/arithmetic_side_effects.rs:261:5
--> $DIR/arithmetic_side_effects.rs:288:5
|
LL | _n *= -2;
| ^^^^^^^^
error: arithmetic operation that can potentially result in unexpected side-effects
--> $DIR/arithmetic_side_effects.rs:262:5
--> $DIR/arithmetic_side_effects.rs:289:5
|
LL | _n *= &-2;
| ^^^^^^^^^
error: arithmetic operation that can potentially result in unexpected side-effects
--> $DIR/arithmetic_side_effects.rs:263:5
--> $DIR/arithmetic_side_effects.rs:290:5
|
LL | _custom += Custom;
| ^^^^^^^^^^^^^^^^^
error: arithmetic operation that can potentially result in unexpected side-effects
--> $DIR/arithmetic_side_effects.rs:264:5
--> $DIR/arithmetic_side_effects.rs:291:5
|
LL | _custom += &Custom;
| ^^^^^^^^^^^^^^^^^^
error: arithmetic operation that can potentially result in unexpected side-effects
--> $DIR/arithmetic_side_effects.rs:265:5
--> $DIR/arithmetic_side_effects.rs:292:5
|
LL | _custom -= Custom;
| ^^^^^^^^^^^^^^^^^
error: arithmetic operation that can potentially result in unexpected side-effects
--> $DIR/arithmetic_side_effects.rs:266:5
--> $DIR/arithmetic_side_effects.rs:293:5
|
LL | _custom -= &Custom;
| ^^^^^^^^^^^^^^^^^^
error: arithmetic operation that can potentially result in unexpected side-effects
--> $DIR/arithmetic_side_effects.rs:267:5
--> $DIR/arithmetic_side_effects.rs:294:5
|
LL | _custom /= Custom;
| ^^^^^^^^^^^^^^^^^
error: arithmetic operation that can potentially result in unexpected side-effects
--> $DIR/arithmetic_side_effects.rs:268:5
--> $DIR/arithmetic_side_effects.rs:295:5
|
LL | _custom /= &Custom;
| ^^^^^^^^^^^^^^^^^^
error: arithmetic operation that can potentially result in unexpected side-effects
--> $DIR/arithmetic_side_effects.rs:269:5
--> $DIR/arithmetic_side_effects.rs:296:5
|
LL | _custom %= Custom;
| ^^^^^^^^^^^^^^^^^
error: arithmetic operation that can potentially result in unexpected side-effects
--> $DIR/arithmetic_side_effects.rs:270:5
--> $DIR/arithmetic_side_effects.rs:297:5
|
LL | _custom %= &Custom;
| ^^^^^^^^^^^^^^^^^^
error: arithmetic operation that can potentially result in unexpected side-effects
--> $DIR/arithmetic_side_effects.rs:271:5
--> $DIR/arithmetic_side_effects.rs:298:5
|
LL | _custom *= Custom;
| ^^^^^^^^^^^^^^^^^
error: arithmetic operation that can potentially result in unexpected side-effects
--> $DIR/arithmetic_side_effects.rs:272:5
--> $DIR/arithmetic_side_effects.rs:299:5
|
LL | _custom *= &Custom;
| ^^^^^^^^^^^^^^^^^^
error: arithmetic operation that can potentially result in unexpected side-effects
--> $DIR/arithmetic_side_effects.rs:273:5
--> $DIR/arithmetic_side_effects.rs:300:5
|
LL | _custom += -Custom;
| ^^^^^^^^^^^^^^^^^^
error: arithmetic operation that can potentially result in unexpected side-effects
--> $DIR/arithmetic_side_effects.rs:274:5
--> $DIR/arithmetic_side_effects.rs:301:5
|
LL | _custom += &-Custom;
| ^^^^^^^^^^^^^^^^^^^
error: arithmetic operation that can potentially result in unexpected side-effects
--> $DIR/arithmetic_side_effects.rs:275:5
--> $DIR/arithmetic_side_effects.rs:302:5
|
LL | _custom -= -Custom;
| ^^^^^^^^^^^^^^^^^^
error: arithmetic operation that can potentially result in unexpected side-effects
--> $DIR/arithmetic_side_effects.rs:276:5
--> $DIR/arithmetic_side_effects.rs:303:5
|
LL | _custom -= &-Custom;
| ^^^^^^^^^^^^^^^^^^^
error: arithmetic operation that can potentially result in unexpected side-effects
--> $DIR/arithmetic_side_effects.rs:277:5
--> $DIR/arithmetic_side_effects.rs:304:5
|
LL | _custom /= -Custom;
| ^^^^^^^^^^^^^^^^^^
error: arithmetic operation that can potentially result in unexpected side-effects
--> $DIR/arithmetic_side_effects.rs:278:5
--> $DIR/arithmetic_side_effects.rs:305:5
|
LL | _custom /= &-Custom;
| ^^^^^^^^^^^^^^^^^^^
error: arithmetic operation that can potentially result in unexpected side-effects
--> $DIR/arithmetic_side_effects.rs:279:5
--> $DIR/arithmetic_side_effects.rs:306:5
|
LL | _custom %= -Custom;
| ^^^^^^^^^^^^^^^^^^
error: arithmetic operation that can potentially result in unexpected side-effects
--> $DIR/arithmetic_side_effects.rs:280:5
--> $DIR/arithmetic_side_effects.rs:307:5
|
LL | _custom %= &-Custom;
| ^^^^^^^^^^^^^^^^^^^
error: arithmetic operation that can potentially result in unexpected side-effects
--> $DIR/arithmetic_side_effects.rs:281:5
--> $DIR/arithmetic_side_effects.rs:308:5
|
LL | _custom *= -Custom;
| ^^^^^^^^^^^^^^^^^^
error: arithmetic operation that can potentially result in unexpected side-effects
--> $DIR/arithmetic_side_effects.rs:282:5
--> $DIR/arithmetic_side_effects.rs:309:5
|
LL | _custom *= &-Custom;
| ^^^^^^^^^^^^^^^^^^^
error: arithmetic operation that can potentially result in unexpected side-effects
--> $DIR/arithmetic_side_effects.rs:285:10
--> $DIR/arithmetic_side_effects.rs:312:10
|
LL | _n = _n + 1;
| ^^^^^^
error: arithmetic operation that can potentially result in unexpected side-effects
--> $DIR/arithmetic_side_effects.rs:286:10
--> $DIR/arithmetic_side_effects.rs:313:10
|
LL | _n = _n + &1;
| ^^^^^^^
error: arithmetic operation that can potentially result in unexpected side-effects
--> $DIR/arithmetic_side_effects.rs:287:10
--> $DIR/arithmetic_side_effects.rs:314:10
|
LL | _n = 1 + _n;
| ^^^^^^
error: arithmetic operation that can potentially result in unexpected side-effects
--> $DIR/arithmetic_side_effects.rs:288:10
--> $DIR/arithmetic_side_effects.rs:315:10
|
LL | _n = &1 + _n;
| ^^^^^^^
error: arithmetic operation that can potentially result in unexpected side-effects
--> $DIR/arithmetic_side_effects.rs:289:10
--> $DIR/arithmetic_side_effects.rs:316:10
|
LL | _n = _n - 1;
| ^^^^^^
error: arithmetic operation that can potentially result in unexpected side-effects
--> $DIR/arithmetic_side_effects.rs:290:10
--> $DIR/arithmetic_side_effects.rs:317:10
|
LL | _n = _n - &1;
| ^^^^^^^
error: arithmetic operation that can potentially result in unexpected side-effects
--> $DIR/arithmetic_side_effects.rs:291:10
--> $DIR/arithmetic_side_effects.rs:318:10
|
LL | _n = 1 - _n;
| ^^^^^^
error: arithmetic operation that can potentially result in unexpected side-effects
--> $DIR/arithmetic_side_effects.rs:292:10
--> $DIR/arithmetic_side_effects.rs:319:10
|
LL | _n = &1 - _n;
| ^^^^^^^
error: arithmetic operation that can potentially result in unexpected side-effects
--> $DIR/arithmetic_side_effects.rs:293:10
--> $DIR/arithmetic_side_effects.rs:320:10
|
LL | _n = _n / 0;
| ^^^^^^
error: arithmetic operation that can potentially result in unexpected side-effects
--> $DIR/arithmetic_side_effects.rs:294:10
--> $DIR/arithmetic_side_effects.rs:321:10
|
LL | _n = _n / &0;
| ^^^^^^^
error: arithmetic operation that can potentially result in unexpected side-effects
--> $DIR/arithmetic_side_effects.rs:295:10
--> $DIR/arithmetic_side_effects.rs:322:10
|
LL | _n = _n % 0;
| ^^^^^^
error: arithmetic operation that can potentially result in unexpected side-effects
--> $DIR/arithmetic_side_effects.rs:296:10
--> $DIR/arithmetic_side_effects.rs:323:10
|
LL | _n = _n % &0;
| ^^^^^^^
error: arithmetic operation that can potentially result in unexpected side-effects
--> $DIR/arithmetic_side_effects.rs:297:10
--> $DIR/arithmetic_side_effects.rs:324:10
|
LL | _n = _n * 2;
| ^^^^^^
error: arithmetic operation that can potentially result in unexpected side-effects
--> $DIR/arithmetic_side_effects.rs:298:10
--> $DIR/arithmetic_side_effects.rs:325:10
|
LL | _n = _n * &2;
| ^^^^^^^
error: arithmetic operation that can potentially result in unexpected side-effects
--> $DIR/arithmetic_side_effects.rs:299:10
--> $DIR/arithmetic_side_effects.rs:326:10
|
LL | _n = 2 * _n;
| ^^^^^^
error: arithmetic operation that can potentially result in unexpected side-effects
--> $DIR/arithmetic_side_effects.rs:300:10
--> $DIR/arithmetic_side_effects.rs:327:10
|
LL | _n = &2 * _n;
| ^^^^^^^
error: arithmetic operation that can potentially result in unexpected side-effects
--> $DIR/arithmetic_side_effects.rs:301:10
--> $DIR/arithmetic_side_effects.rs:328:10
|
LL | _n = 23 + &85;
| ^^^^^^^^
error: arithmetic operation that can potentially result in unexpected side-effects
--> $DIR/arithmetic_side_effects.rs:302:10
--> $DIR/arithmetic_side_effects.rs:329:10
|
LL | _n = &23 + 85;
| ^^^^^^^^
error: arithmetic operation that can potentially result in unexpected side-effects
--> $DIR/arithmetic_side_effects.rs:303:10
--> $DIR/arithmetic_side_effects.rs:330:10
|
LL | _n = &23 + &85;
| ^^^^^^^^^
error: arithmetic operation that can potentially result in unexpected side-effects
--> $DIR/arithmetic_side_effects.rs:304:15
--> $DIR/arithmetic_side_effects.rs:331:15
|
LL | _custom = _custom + _custom;
| ^^^^^^^^^^^^^^^^^
error: arithmetic operation that can potentially result in unexpected side-effects
--> $DIR/arithmetic_side_effects.rs:305:15
--> $DIR/arithmetic_side_effects.rs:332:15
|
LL | _custom = _custom + &_custom;
| ^^^^^^^^^^^^^^^^^^
error: arithmetic operation that can potentially result in unexpected side-effects
--> $DIR/arithmetic_side_effects.rs:306:15
--> $DIR/arithmetic_side_effects.rs:333:15
|
LL | _custom = Custom + _custom;
| ^^^^^^^^^^^^^^^^
error: arithmetic operation that can potentially result in unexpected side-effects
--> $DIR/arithmetic_side_effects.rs:307:15
--> $DIR/arithmetic_side_effects.rs:334:15
|
LL | _custom = &Custom + _custom;
| ^^^^^^^^^^^^^^^^^
error: arithmetic operation that can potentially result in unexpected side-effects
--> $DIR/arithmetic_side_effects.rs:308:15
--> $DIR/arithmetic_side_effects.rs:335:15
|
LL | _custom = _custom - Custom;
| ^^^^^^^^^^^^^^^^
error: arithmetic operation that can potentially result in unexpected side-effects
--> $DIR/arithmetic_side_effects.rs:309:15
--> $DIR/arithmetic_side_effects.rs:336:15
|
LL | _custom = _custom - &Custom;
| ^^^^^^^^^^^^^^^^^
error: arithmetic operation that can potentially result in unexpected side-effects
--> $DIR/arithmetic_side_effects.rs:310:15
--> $DIR/arithmetic_side_effects.rs:337:15
|
LL | _custom = Custom - _custom;
| ^^^^^^^^^^^^^^^^
error: arithmetic operation that can potentially result in unexpected side-effects
--> $DIR/arithmetic_side_effects.rs:311:15
--> $DIR/arithmetic_side_effects.rs:338:15
|
LL | _custom = &Custom - _custom;
| ^^^^^^^^^^^^^^^^^
error: arithmetic operation that can potentially result in unexpected side-effects
--> $DIR/arithmetic_side_effects.rs:312:15
--> $DIR/arithmetic_side_effects.rs:339:15
|
LL | _custom = _custom / Custom;
| ^^^^^^^^^^^^^^^^
error: arithmetic operation that can potentially result in unexpected side-effects
--> $DIR/arithmetic_side_effects.rs:313:15
--> $DIR/arithmetic_side_effects.rs:340:15
|
LL | _custom = _custom / &Custom;
| ^^^^^^^^^^^^^^^^^
error: arithmetic operation that can potentially result in unexpected side-effects
--> $DIR/arithmetic_side_effects.rs:314:15
--> $DIR/arithmetic_side_effects.rs:341:15
|
LL | _custom = _custom % Custom;
| ^^^^^^^^^^^^^^^^
error: arithmetic operation that can potentially result in unexpected side-effects
--> $DIR/arithmetic_side_effects.rs:315:15
--> $DIR/arithmetic_side_effects.rs:342:15
|
LL | _custom = _custom % &Custom;
| ^^^^^^^^^^^^^^^^^
error: arithmetic operation that can potentially result in unexpected side-effects
--> $DIR/arithmetic_side_effects.rs:316:15
--> $DIR/arithmetic_side_effects.rs:343:15
|
LL | _custom = _custom * Custom;
| ^^^^^^^^^^^^^^^^
error: arithmetic operation that can potentially result in unexpected side-effects
--> $DIR/arithmetic_side_effects.rs:317:15
--> $DIR/arithmetic_side_effects.rs:344:15
|
LL | _custom = _custom * &Custom;
| ^^^^^^^^^^^^^^^^^
error: arithmetic operation that can potentially result in unexpected side-effects
--> $DIR/arithmetic_side_effects.rs:318:15
--> $DIR/arithmetic_side_effects.rs:345:15
|
LL | _custom = Custom * _custom;
| ^^^^^^^^^^^^^^^^
error: arithmetic operation that can potentially result in unexpected side-effects
--> $DIR/arithmetic_side_effects.rs:319:15
--> $DIR/arithmetic_side_effects.rs:346:15
|
LL | _custom = &Custom * _custom;
| ^^^^^^^^^^^^^^^^^
error: arithmetic operation that can potentially result in unexpected side-effects
--> $DIR/arithmetic_side_effects.rs:320:15
--> $DIR/arithmetic_side_effects.rs:347:15
|
LL | _custom = Custom + &Custom;
| ^^^^^^^^^^^^^^^^
error: arithmetic operation that can potentially result in unexpected side-effects
--> $DIR/arithmetic_side_effects.rs:321:15
--> $DIR/arithmetic_side_effects.rs:348:15
|
LL | _custom = &Custom + Custom;
| ^^^^^^^^^^^^^^^^
error: arithmetic operation that can potentially result in unexpected side-effects
--> $DIR/arithmetic_side_effects.rs:322:15
--> $DIR/arithmetic_side_effects.rs:349:15
|
LL | _custom = &Custom + &Custom;
| ^^^^^^^^^^^^^^^^^
error: arithmetic operation that can potentially result in unexpected side-effects
--> $DIR/arithmetic_side_effects.rs:325:10
--> $DIR/arithmetic_side_effects.rs:352:10
|
LL | _n = -_n;
| ^^^
error: arithmetic operation that can potentially result in unexpected side-effects
--> $DIR/arithmetic_side_effects.rs:326:10
--> $DIR/arithmetic_side_effects.rs:353:10
|
LL | _n = -&_n;
| ^^^^
error: arithmetic operation that can potentially result in unexpected side-effects
--> $DIR/arithmetic_side_effects.rs:327:15
--> $DIR/arithmetic_side_effects.rs:354:15
|
LL | _custom = -_custom;
| ^^^^^^^^
error: arithmetic operation that can potentially result in unexpected side-effects
--> $DIR/arithmetic_side_effects.rs:328:15
--> $DIR/arithmetic_side_effects.rs:355:15
|
LL | _custom = -&_custom;
| ^^^^^^^^^
error: arithmetic operation that can potentially result in unexpected side-effects
--> $DIR/arithmetic_side_effects.rs:337:5
--> $DIR/arithmetic_side_effects.rs:364:5
|
LL | 1 + i;
| ^^^^^
error: arithmetic operation that can potentially result in unexpected side-effects
--> $DIR/arithmetic_side_effects.rs:338:5
--> $DIR/arithmetic_side_effects.rs:365:5
|
LL | i * 2;
| ^^^^^
error: arithmetic operation that can potentially result in unexpected side-effects
--> $DIR/arithmetic_side_effects.rs:340:5
--> $DIR/arithmetic_side_effects.rs:367:5
|
LL | i - 2 + 2 - i;
| ^^^^^^^^^^^^^
error: arithmetic operation that can potentially result in unexpected side-effects
--> $DIR/arithmetic_side_effects.rs:341:5
--> $DIR/arithmetic_side_effects.rs:368:5
|
LL | -i;
| ^^
error: arithmetic operation that can potentially result in unexpected side-effects
--> $DIR/arithmetic_side_effects.rs:342:5
--> $DIR/arithmetic_side_effects.rs:369:5
|
LL | i >> 1;
| ^^^^^^
error: arithmetic operation that can potentially result in unexpected side-effects
--> $DIR/arithmetic_side_effects.rs:343:5
--> $DIR/arithmetic_side_effects.rs:370:5
|
LL | i << 1;
| ^^^^^^
error: arithmetic operation that can potentially result in unexpected side-effects
--> $DIR/arithmetic_side_effects.rs:352:5
--> $DIR/arithmetic_side_effects.rs:379:5
|
LL | i += 1;
| ^^^^^^
error: arithmetic operation that can potentially result in unexpected side-effects
--> $DIR/arithmetic_side_effects.rs:353:5
--> $DIR/arithmetic_side_effects.rs:380:5
|
LL | i -= 1;
| ^^^^^^
error: arithmetic operation that can potentially result in unexpected side-effects
--> $DIR/arithmetic_side_effects.rs:354:5
--> $DIR/arithmetic_side_effects.rs:381:5
|
LL | i *= 2;
| ^^^^^^
error: arithmetic operation that can potentially result in unexpected side-effects
--> $DIR/arithmetic_side_effects.rs:356:5
--> $DIR/arithmetic_side_effects.rs:383:5
|
LL | i /= 0;
| ^^^^^^
error: arithmetic operation that can potentially result in unexpected side-effects
--> $DIR/arithmetic_side_effects.rs:358:5
--> $DIR/arithmetic_side_effects.rs:385:5
|
LL | i /= var1;
| ^^^^^^^^^
error: arithmetic operation that can potentially result in unexpected side-effects
--> $DIR/arithmetic_side_effects.rs:359:5
--> $DIR/arithmetic_side_effects.rs:386:5
|
LL | i /= var2;
| ^^^^^^^^^
error: arithmetic operation that can potentially result in unexpected side-effects
--> $DIR/arithmetic_side_effects.rs:361:5
--> $DIR/arithmetic_side_effects.rs:388:5
|
LL | i %= 0;
| ^^^^^^
error: arithmetic operation that can potentially result in unexpected side-effects
--> $DIR/arithmetic_side_effects.rs:363:5
--> $DIR/arithmetic_side_effects.rs:390:5
|
LL | i %= var1;
| ^^^^^^^^^
error: arithmetic operation that can potentially result in unexpected side-effects
--> $DIR/arithmetic_side_effects.rs:364:5
--> $DIR/arithmetic_side_effects.rs:391:5
|
LL | i %= var2;
| ^^^^^^^^^
error: arithmetic operation that can potentially result in unexpected side-effects
--> $DIR/arithmetic_side_effects.rs:365:5
--> $DIR/arithmetic_side_effects.rs:392:5
|
LL | i <<= 3;
| ^^^^^^^
error: arithmetic operation that can potentially result in unexpected side-effects
--> $DIR/arithmetic_side_effects.rs:366:5
--> $DIR/arithmetic_side_effects.rs:393:5
|
LL | i >>= 2;
| ^^^^^^^