nordic-dev.net/rust
nordic-dev.net/rust
2
0
Fork 0
mirror of https://github.com/rust-lang/rust.git synced 2025-02-13 15:33:53 +00:00
Code Issues Packages Projects Releases Wiki Activity

Remove code duplication

Browse Source
This commit is contained in:
flip1995 2019-04-18 12:04:46 +02:00
parent 40218bae0c
commit 834ad76806
No known key found for this signature in database
GPG Key ID: 01C836B640FFDFB1
1 changed files with 21 additions and 45 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

66
clippy_lints/src/assertions_on_constants.rs
View File

@ -4,7 +4,6 @@ use rustc::lint::{LateContext, LateLintPass, LintArray, LintPass};
use rustc::{declare_lint_pass, declare_tool_lint};
use crate::consts::{constant, Constant};
use crate::syntax::ast::LitKind;
use crate::utils::{in_macro, is_direct_expn_of, span_help_and_lint};
declare_clippy_lint! {
@ -43,51 +42,28 @@ impl<'a, 'tcx> LateLintPass<'a, 'tcx> for AssertionsOnConstants {
!in_macro(span)
});
if let ExprKind::Unary(_, ref lit) = e.node;
if let Some(bool_const) = constant(cx, cx.tables, lit);
then {
if let ExprKind::Lit(ref inner) = lit.node {
match inner.node {
LitKind::Bool(true) => {
span_help_and_lint(
cx,
ASSERTIONS_ON_CONSTANTS,
e.span,
"`assert!(true)` will be optimized out by the compiler",
"remove it"
);
},
LitKind::Bool(false) if !is_debug_assert => {
span_help_and_lint(
cx,
ASSERTIONS_ON_CONSTANTS,
e.span,
"`assert!(false)` should probably be replaced",
"use `panic!()` or `unreachable!()`"
);
},
_ => (),
}
} else if let Some(bool_const) = constant(cx, cx.tables, lit) {
match bool_const.0 {
Constant::Bool(true) => {
span_help_and_lint(
cx,
ASSERTIONS_ON_CONSTANTS,
e.span,
"`assert!(const: true)` will be optimized out by the compiler",
"remove it"
);
},
Constant::Bool(false) if !is_debug_assert => {
span_help_and_lint(
cx,
ASSERTIONS_ON_CONSTANTS,
e.span,
"`assert!(const: false)` should probably be replaced",
"use `panic!()` or `unreachable!()`"
);
},
_ => (),
}
match bool_const.0 {
Constant::Bool(true) => {
span_help_and_lint(
cx,
ASSERTIONS_ON_CONSTANTS,
e.span,
"`assert!(true)` will be optimized out by the compiler",
"remove it"
);
},
Constant::Bool(false) if !is_debug_assert => {
span_help_and_lint(
cx,
ASSERTIONS_ON_CONSTANTS,
e.span,
"`assert!(false)` should probably be replaced",
"use `panic!()` or `unreachable!()`"
);
},
_ => (),
}
}
}