Rename overflow_check_conditional to panicking_overflow_checks.

Author: Jarcho

CHANGELOG.md

@@ -5700,6 +5700,7 @@ Released 2018-09-13
 [`panic`]: https://rust-lang.github.io/rust-clippy/master/index.html#panic
 [`panic_in_result_fn`]: https://rust-lang.github.io/rust-clippy/master/index.html#panic_in_result_fn
 [`panic_params`]: https://rust-lang.github.io/rust-clippy/master/index.html#panic_params
+[`panicking_overflow_checks`]: https://rust-lang.github.io/rust-clippy/master/index.html#panicking_overflow_checks
 [`panicking_unwrap`]: https://rust-lang.github.io/rust-clippy/master/index.html#panicking_unwrap
 [`partial_pub_fields`]: https://rust-lang.github.io/rust-clippy/master/index.html#partial_pub_fields
 [`partialeq_ne_impl`]: https://rust-lang.github.io/rust-clippy/master/index.html#partialeq_ne_impl

clippy_lints/src/declared_lints.rs

@@ -583,12 +583,12 @@ pub(crate) static LINTS: &[&crate::LintInfo] = &[
     crate::operators::VERBOSE_BIT_MASK_INFO,
     crate::option_env_unwrap::OPTION_ENV_UNWRAP_INFO,
     crate::option_if_let_else::OPTION_IF_LET_ELSE_INFO,
-    crate::overflow_check_conditional::OVERFLOW_CHECK_CONDITIONAL_INFO,
     crate::panic_in_result_fn::PANIC_IN_RESULT_FN_INFO,
     crate::panic_unimplemented::PANIC_INFO,
     crate::panic_unimplemented::TODO_INFO,
     crate::panic_unimplemented::UNIMPLEMENTED_INFO,
     crate::panic_unimplemented::UNREACHABLE_INFO,
+    crate::panicking_overflow_checks::PANICKING_OVERFLOW_CHECKS_INFO,
     crate::partial_pub_fields::PARTIAL_PUB_FIELDS_INFO,
     crate::partialeq_ne_impl::PARTIALEQ_NE_IMPL_INFO,
     crate::partialeq_to_none::PARTIALEQ_TO_NONE_INFO,

clippy_lints/src/lib.rs

@@ -274,9 +274,9 @@ mod only_used_in_recursion;
 mod operators;
 mod option_env_unwrap;
 mod option_if_let_else;
-mod overflow_check_conditional;
 mod panic_in_result_fn;
 mod panic_unimplemented;
+mod panicking_overflow_checks;
 mod partial_pub_fields;
 mod partialeq_ne_impl;
 mod partialeq_to_none;
@@ -787,7 +787,7 @@ pub fn register_lints(store: &mut rustc_lint::LintStore, conf: &'static Conf) {
     let format_args = format_args_storage.clone();
     store.register_late_pass(move |_| Box::new(format::UselessFormat::new(format_args.clone())));
     store.register_late_pass(|_| Box::new(swap::Swap));
-    store.register_late_pass(|_| Box::new(overflow_check_conditional::OverflowCheckConditional));
+    store.register_late_pass(|_| Box::new(panicking_overflow_checks::PanickingOverflowChecks));
     store.register_late_pass(|_| Box::<new_without_default::NewWithoutDefault>::default());
     store.register_late_pass(move |_| Box::new(disallowed_names::DisallowedNames::new(disallowed_names)));
     store.register_late_pass(move |_| {

clippy_lints/src/overflow_check_conditional.rs renamed to clippy_lints/src/panicking_overflow_checks.rs

@@ -21,14 +21,14 @@ declare_clippy_lint! {
     /// a + b < a;
     /// ```
     #[clippy::version = "pre 1.29.0"]
-    pub OVERFLOW_CHECK_CONDITIONAL,
+    pub PANICKING_OVERFLOW_CHECKS,
     complexity,
     "overflow checks inspired by C which are likely to panic"
 }
 
-declare_lint_pass!(OverflowCheckConditional => [OVERFLOW_CHECK_CONDITIONAL]);
+declare_lint_pass!(PanickingOverflowChecks => [PANICKING_OVERFLOW_CHECKS]);
 
-impl<'tcx> LateLintPass<'tcx> for OverflowCheckConditional {
+impl<'tcx> LateLintPass<'tcx> for PanickingOverflowChecks {
     // a + b < a, a > a + b, a < a - b, a - b > a
     fn check_expr(&mut self, cx: &LateContext<'tcx>, expr: &'tcx Expr<'_>) {
         if let ExprKind::Binary(op, lhs, rhs) = expr.kind
@@ -59,7 +59,7 @@ impl<'tcx> LateLintPass<'tcx> for OverflowCheckConditional {
         {
             span_lint(
                 cx,
-                OVERFLOW_CHECK_CONDITIONAL,
+                PANICKING_OVERFLOW_CHECKS,
                 expr.span,
                 "you are trying to use classic C overflow conditions that will fail in Rust",
             );

clippy_lints/src/renamed_lints.rs

@@ -26,6 +26,7 @@ pub static RENAMED_LINTS: &[(&str, &str)] = &[
     ("clippy::option_map_unwrap_or", "clippy::map_unwrap_or"),
     ("clippy::option_map_unwrap_or_else", "clippy::map_unwrap_or"),
     ("clippy::option_unwrap_used", "clippy::unwrap_used"),
+    ("clippy::overflow_check_conditional", "clippy::panicking_overflow_checks"),
     ("clippy::ref_in_deref", "clippy::needless_borrow"),
     ("clippy::result_expect_used", "clippy::expect_used"),
     ("clippy::result_map_unwrap_or_else", "clippy::map_unwrap_or"),

tests/ui/overflow_check_conditional.rs

@@ -0,0 +1,27 @@
+#![warn(clippy::panicking_overflow_checks)]
+#![allow(clippy::needless_if)]
+
+fn test(a: u32, b: u32, c: u32) {
+    if a + b < a {} //~ panicking_overflow_checks
+    if a > a + b {} //~ panicking_overflow_checks
+    if a + b < b {} //~ panicking_overflow_checks
+    if b > a + b {} //~ panicking_overflow_checks
+    if a - b > b {}
+    if b < a - b {}
+    if a - b > a {} //~ panicking_overflow_checks
+    if a < a - b {} //~ panicking_overflow_checks
+    if a + b < c {}
+    if c > a + b {}
+    if a - b < c {}
+    if c > a - b {}
+    let i = 1.1;
+    let j = 2.2;
+    if i + j < i {}
+    if i - j < i {}
+    if i > i + j {}
+    if i - j < i {}
+}
+
+fn main() {
+    test(1, 2, 3)
+}

tests/ui/panicking_overflow_checks.rs

@@ -1,38 +1,38 @@
 error: you are trying to use classic C overflow conditions that will fail in Rust
-  --> tests/ui/overflow_check_conditional.rs:5:8
+  --> tests/ui/panicking_overflow_checks.rs:5:8
    |
 LL |     if a + b < a {}
    |        ^^^^^^^^^
    |
-   = note: `-D clippy::overflow-check-conditional` implied by `-D warnings`
-   = help: to override `-D warnings` add `#[allow(clippy::overflow_check_conditional)]`
+   = note: `-D clippy::panicking-overflow-checks` implied by `-D warnings`
+   = help: to override `-D warnings` add `#[allow(clippy::panicking_overflow_checks)]`
 
 error: you are trying to use classic C overflow conditions that will fail in Rust
-  --> tests/ui/overflow_check_conditional.rs:6:8
+  --> tests/ui/panicking_overflow_checks.rs:6:8
    |
 LL |     if a > a + b {}
    |        ^^^^^^^^^
 
 error: you are trying to use classic C overflow conditions that will fail in Rust
-  --> tests/ui/overflow_check_conditional.rs:7:8
+  --> tests/ui/panicking_overflow_checks.rs:7:8
    |
 LL |     if a + b < b {}
    |        ^^^^^^^^^
 
 error: you are trying to use classic C overflow conditions that will fail in Rust
-  --> tests/ui/overflow_check_conditional.rs:8:8
+  --> tests/ui/panicking_overflow_checks.rs:8:8
    |
 LL |     if b > a + b {}
    |        ^^^^^^^^^
 
 error: you are trying to use classic C overflow conditions that will fail in Rust
-  --> tests/ui/overflow_check_conditional.rs:11:8
+  --> tests/ui/panicking_overflow_checks.rs:11:8
    |
 LL |     if a - b > a {}
    |        ^^^^^^^^^
 
 error: you are trying to use classic C overflow conditions that will fail in Rust
-  --> tests/ui/overflow_check_conditional.rs:12:8
+  --> tests/ui/panicking_overflow_checks.rs:12:8
    |
 LL |     if a < a - b {}
    |        ^^^^^^^^^

tests/ui/overflow_check_conditional.stderr renamed to tests/ui/panicking_overflow_checks.stderr

@@ -24,6 +24,7 @@
 #![allow(clippy::expect_used)]
 #![allow(clippy::map_unwrap_or)]
 #![allow(clippy::unwrap_used)]
+#![allow(clippy::panicking_overflow_checks)]
 #![allow(clippy::needless_borrow)]
 #![allow(clippy::single_char_add_str)]
 #![allow(clippy::module_name_repetitions)]
@@ -77,6 +78,7 @@
 #![warn(clippy::option_map_unwrap_or)]
 #![warn(clippy::option_map_unwrap_or_else)]
 #![warn(clippy::option_unwrap_used)]
+#![warn(clippy::overflow_check_conditional)]
 #![warn(clippy::ref_in_deref)]
 #![warn(clippy::result_expect_used)]
 #![warn(clippy::result_map_unwrap_or_else)]