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add proc macro check to needless_return

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y21 2024-09-26 17:44:59 +02:00
parent 8ab744e2d1
commit c8725f70e7
4 changed files with 81 additions and 65 deletions
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2
clippy_lints/src/returns.rs
View file

@ -407,7 +407,7 @@ fn check_final_expr<'tcx>(
}
}
if ret_span.from_expansion() {
if ret_span.from_expansion() || is_from_proc_macro(cx, expr) {
return;
}

8
tests/ui/needless_return.fixed
View file

@ -1,3 +1,4 @@
//@aux-build:proc_macros.rs
#![feature(yeet_expr)]
#![allow(unused)]
#![allow(
@ -9,6 +10,9 @@
)]
#![warn(clippy::needless_return)]
extern crate proc_macros;
use proc_macros::with_span;
use std::cell::RefCell;
macro_rules! the_answer {
@ -359,4 +363,8 @@ fn issue12907() -> String {
"".split("").next().unwrap().to_string()
}
fn issue13458() {
with_span!(span return);
}
fn main() {}

8
tests/ui/needless_return.rs
View file

@ -1,3 +1,4 @@
//@aux-build:proc_macros.rs
#![feature(yeet_expr)]
#![allow(unused)]
#![allow(
@ -9,6 +10,9 @@
)]
#![warn(clippy::needless_return)]
extern crate proc_macros;
use proc_macros::with_span;
use std::cell::RefCell;
macro_rules! the_answer {
@ -369,4 +373,8 @@ fn issue12907() -> String {
return "".split("").next().unwrap().to_string();
}
fn issue13458() {
with_span!(span return);
}
fn main() {}

128
tests/ui/needless_return.stderr
View file

@ -1,5 +1,5 @@
error: unneeded `return` statement
--> tests/ui/needless_return.rs:25:5
--> tests/ui/needless_return.rs:29:5
|
LL | return true;
| ^^^^^^^^^^^
@ -13,7 +13,7 @@ LL + true
|
error: unneeded `return` statement
--> tests/ui/needless_return.rs:29:5
--> tests/ui/needless_return.rs:33:5
|
LL | return true;
| ^^^^^^^^^^^
@ -25,7 +25,7 @@ LL + true
|
error: unneeded `return` statement
--> tests/ui/needless_return.rs:34:5
--> tests/ui/needless_return.rs:38:5
|
LL | return true;;;
| ^^^^^^^^^^^
@ -37,7 +37,7 @@ LL + true
|
error: unneeded `return` statement
--> tests/ui/needless_return.rs:39:5
--> tests/ui/needless_return.rs:43:5
|
LL | return true;; ; ;
| ^^^^^^^^^^^
@ -49,7 +49,7 @@ LL + true
|
error: unneeded `return` statement
--> tests/ui/needless_return.rs:44:9
--> tests/ui/needless_return.rs:48:9
|
LL | return true;
| ^^^^^^^^^^^
@ -61,7 +61,7 @@ LL + true
|
error: unneeded `return` statement
--> tests/ui/needless_return.rs:46:9
--> tests/ui/needless_return.rs:50:9
|
LL | return false;
| ^^^^^^^^^^^^
@ -73,7 +73,7 @@ LL + false
|
error: unneeded `return` statement
--> tests/ui/needless_return.rs:52:17
--> tests/ui/needless_return.rs:56:17
|
LL | true => return false,
| ^^^^^^^^^^^^
@ -84,7 +84,7 @@ LL | true => false,
| ~~~~~
error: unneeded `return` statement
--> tests/ui/needless_return.rs:54:13
--> tests/ui/needless_return.rs:58:13
|
LL | return true;
| ^^^^^^^^^^^
@ -96,7 +96,7 @@ LL + true
|
error: unneeded `return` statement
--> tests/ui/needless_return.rs:61:9
--> tests/ui/needless_return.rs:65:9
|
LL | return true;
| ^^^^^^^^^^^
@ -108,7 +108,7 @@ LL + true
|
error: unneeded `return` statement
--> tests/ui/needless_return.rs:63:16
--> tests/ui/needless_return.rs:67:16
|
LL | let _ = || return true;
| ^^^^^^^^^^^
@ -119,7 +119,7 @@ LL | let _ = || true;
| ~~~~
error: unneeded `return` statement
--> tests/ui/needless_return.rs:67:5
--> tests/ui/needless_return.rs:71:5
|
LL | return the_answer!();
| ^^^^^^^^^^^^^^^^^^^^
@ -131,7 +131,7 @@ LL + the_answer!()
|
error: unneeded `return` statement
--> tests/ui/needless_return.rs:70:21
--> tests/ui/needless_return.rs:74:21
|
LL | fn test_void_fun() {
| _____________________^
@ -146,7 +146,7 @@ LL + fn test_void_fun() {
|
error: unneeded `return` statement
--> tests/ui/needless_return.rs:75:11
--> tests/ui/needless_return.rs:79:11
|
LL | if b {
| ___________^
@ -161,7 +161,7 @@ LL + if b {
|
error: unneeded `return` statement
--> tests/ui/needless_return.rs:77:13
--> tests/ui/needless_return.rs:81:13
|
LL | } else {
| _____________^
@ -176,7 +176,7 @@ LL + } else {
|
error: unneeded `return` statement
--> tests/ui/needless_return.rs:85:14
--> tests/ui/needless_return.rs:89:14
|
LL | _ => return,
| ^^^^^^
@ -187,7 +187,7 @@ LL | _ => (),
| ~~
error: unneeded `return` statement
--> tests/ui/needless_return.rs:93:24
--> tests/ui/needless_return.rs:97:24
|
LL | let _ = 42;
| ________________________^
@ -202,7 +202,7 @@ LL + let _ = 42;
|
error: unneeded `return` statement
--> tests/ui/needless_return.rs:96:14
--> tests/ui/needless_return.rs:100:14
|
LL | _ => return,
| ^^^^^^
@ -213,7 +213,7 @@ LL | _ => (),
| ~~
error: unneeded `return` statement
--> tests/ui/needless_return.rs:109:9
--> tests/ui/needless_return.rs:113:9
|
LL | return String::from("test");
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^
@ -225,7 +225,7 @@ LL + String::from("test")
|
error: unneeded `return` statement
--> tests/ui/needless_return.rs:111:9
--> tests/ui/needless_return.rs:115:9
|
LL | return String::new();
| ^^^^^^^^^^^^^^^^^^^^
@ -237,7 +237,7 @@ LL + String::new()
|
error: unneeded `return` statement
--> tests/ui/needless_return.rs:133:32
--> tests/ui/needless_return.rs:137:32
|
LL | bar.unwrap_or_else(|_| return)
| ^^^^^^
@ -248,7 +248,7 @@ LL | bar.unwrap_or_else(|_| {})
| ~~
error: unneeded `return` statement
--> tests/ui/needless_return.rs:137:21
--> tests/ui/needless_return.rs:141:21
|
LL | let _ = || {
| _____________________^
@ -263,7 +263,7 @@ LL + let _ = || {
|
error: unneeded `return` statement
--> tests/ui/needless_return.rs:140:20
--> tests/ui/needless_return.rs:144:20
|
LL | let _ = || return;
| ^^^^^^
@ -274,7 +274,7 @@ LL | let _ = || {};
| ~~
error: unneeded `return` statement
--> tests/ui/needless_return.rs:146:32
--> tests/ui/needless_return.rs:150:32
|
LL | res.unwrap_or_else(|_| return Foo)
| ^^^^^^^^^^
@ -284,18 +284,6 @@ help: remove `return`
LL | res.unwrap_or_else(|_| Foo)
| ~~~
error: unneeded `return` statement
--> tests/ui/needless_return.rs:155:5
|
LL | return true;
| ^^^^^^^^^^^
|
help: remove `return`
|
LL - return true;
LL + true
|
error: unneeded `return` statement
--> tests/ui/needless_return.rs:159:5
|
@ -309,7 +297,19 @@ LL + true
|
error: unneeded `return` statement
--> tests/ui/needless_return.rs:164:9
--> tests/ui/needless_return.rs:163:5
|
LL | return true;
| ^^^^^^^^^^^
|
help: remove `return`
|
LL - return true;
LL + true
|
error: unneeded `return` statement
--> tests/ui/needless_return.rs:168:9
|
LL | return true;
| ^^^^^^^^^^^
@ -321,7 +321,7 @@ LL + true
|
error: unneeded `return` statement
--> tests/ui/needless_return.rs:166:9
--> tests/ui/needless_return.rs:170:9
|
LL | return false;
| ^^^^^^^^^^^^
@ -333,7 +333,7 @@ LL + false
|
error: unneeded `return` statement
--> tests/ui/needless_return.rs:172:17
--> tests/ui/needless_return.rs:176:17
|
LL | true => return false,
| ^^^^^^^^^^^^
@ -344,7 +344,7 @@ LL | true => false,
| ~~~~~
error: unneeded `return` statement
--> tests/ui/needless_return.rs:174:13
--> tests/ui/needless_return.rs:178:13
|
LL | return true;
| ^^^^^^^^^^^
@ -356,7 +356,7 @@ LL + true
|
error: unneeded `return` statement
--> tests/ui/needless_return.rs:181:9
--> tests/ui/needless_return.rs:185:9
|
LL | return true;
| ^^^^^^^^^^^
@ -368,7 +368,7 @@ LL + true
|
error: unneeded `return` statement
--> tests/ui/needless_return.rs:183:16
--> tests/ui/needless_return.rs:187:16
|
LL | let _ = || return true;
| ^^^^^^^^^^^
@ -379,7 +379,7 @@ LL | let _ = || true;
| ~~~~
error: unneeded `return` statement
--> tests/ui/needless_return.rs:187:5
--> tests/ui/needless_return.rs:191:5
|
LL | return the_answer!();
| ^^^^^^^^^^^^^^^^^^^^
@ -391,7 +391,7 @@ LL + the_answer!()
|
error: unneeded `return` statement
--> tests/ui/needless_return.rs:190:33
--> tests/ui/needless_return.rs:194:33
|
LL | async fn async_test_void_fun() {
| _________________________________^
@ -406,7 +406,7 @@ LL + async fn async_test_void_fun() {
|
error: unneeded `return` statement
--> tests/ui/needless_return.rs:195:11
--> tests/ui/needless_return.rs:199:11
|
LL | if b {
| ___________^
@ -421,7 +421,7 @@ LL + if b {
|
error: unneeded `return` statement
--> tests/ui/needless_return.rs:197:13
--> tests/ui/needless_return.rs:201:13
|
LL | } else {
| _____________^
@ -436,7 +436,7 @@ LL + } else {
|
error: unneeded `return` statement
--> tests/ui/needless_return.rs:205:14
--> tests/ui/needless_return.rs:209:14
|
LL | _ => return,
| ^^^^^^
@ -447,7 +447,7 @@ LL | _ => (),
| ~~
error: unneeded `return` statement
--> tests/ui/needless_return.rs:218:9
--> tests/ui/needless_return.rs:222:9
|
LL | return String::from("test");
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^
@ -459,7 +459,7 @@ LL + String::from("test")
|
error: unneeded `return` statement
--> tests/ui/needless_return.rs:220:9
--> tests/ui/needless_return.rs:224:9
|
LL | return String::new();
| ^^^^^^^^^^^^^^^^^^^^
@ -471,7 +471,7 @@ LL + String::new()
|
error: unneeded `return` statement
--> tests/ui/needless_return.rs:236:5
--> tests/ui/needless_return.rs:240:5
|
LL | return format!("Hello {}", "world!");
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@ -483,7 +483,7 @@ LL + format!("Hello {}", "world!")
|
error: unneeded `return` statement
--> tests/ui/needless_return.rs:277:9
--> tests/ui/needless_return.rs:281:9
|
LL | return true;
| ^^^^^^^^^^^
@ -497,7 +497,7 @@ LL ~ }
|
error: unneeded `return` statement
--> tests/ui/needless_return.rs:279:9
--> tests/ui/needless_return.rs:283:9
|
LL | return false;
| ^^^^^^^^^^^^
@ -509,7 +509,7 @@ LL ~ }
|
error: unneeded `return` statement
--> tests/ui/needless_return.rs:286:13
--> tests/ui/needless_return.rs:290:13
|
LL | return 10;
| ^^^^^^^^^
@ -524,7 +524,7 @@ LL ~ }
|
error: unneeded `return` statement
--> tests/ui/needless_return.rs:289:13
--> tests/ui/needless_return.rs:293:13
|
LL | return 100;
| ^^^^^^^^^^
@ -537,7 +537,7 @@ LL ~ }
|
error: unneeded `return` statement
--> tests/ui/needless_return.rs:297:9
--> tests/ui/needless_return.rs:301:9
|
LL | return 0;
| ^^^^^^^^
@ -549,7 +549,7 @@ LL ~ }
|
error: unneeded `return` statement
--> tests/ui/needless_return.rs:304:13
--> tests/ui/needless_return.rs:308:13
|
LL | return *(x as *const isize);
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^
@ -564,7 +564,7 @@ LL ~ }
|
error: unneeded `return` statement
--> tests/ui/needless_return.rs:306:13
--> tests/ui/needless_return.rs:310:13
|
LL | return !*(x as *const isize);
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@ -577,7 +577,7 @@ LL ~ }
|
error: unneeded `return` statement
--> tests/ui/needless_return.rs:313:20
--> tests/ui/needless_return.rs:317:20
|
LL | let _ = 42;
| ____________________^
@ -594,7 +594,7 @@ LL + let _ = 42;
|
error: unneeded `return` statement
--> tests/ui/needless_return.rs:320:20
--> tests/ui/needless_return.rs:324:20
|
LL | let _ = 42; return;
| ^^^^^^^
@ -606,7 +606,7 @@ LL + let _ = 42;
|
error: unneeded `return` statement
--> tests/ui/needless_return.rs:332:9
--> tests/ui/needless_return.rs:336:9
|
LL | return Ok(format!("ok!"));
| ^^^^^^^^^^^^^^^^^^^^^^^^^
@ -618,7 +618,7 @@ LL + Ok(format!("ok!"))
|
error: unneeded `return` statement
--> tests/ui/needless_return.rs:334:9
--> tests/ui/needless_return.rs:338:9
|
LL | return Err(format!("err!"));
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^
@ -630,7 +630,7 @@ LL + Err(format!("err!"))
|
error: unneeded `return` statement
--> tests/ui/needless_return.rs:340:9
--> tests/ui/needless_return.rs:344:9
|
LL | return if true { 1 } else { 2 };
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@ -642,7 +642,7 @@ LL + if true { 1 } else { 2 }
|
error: unneeded `return` statement
--> tests/ui/needless_return.rs:344:9
--> tests/ui/needless_return.rs:348:9
|
LL | return if b1 { 0 } else { 1 } | if b2 { 2 } else { 3 } | if b3 { 4 } else { 5 };
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@ -654,7 +654,7 @@ LL + (if b1 { 0 } else { 1 } | if b2 { 2 } else { 3 } | if b3 { 4 } else
|
error: unneeded `return` statement
--> tests/ui/needless_return.rs:365:5
--> tests/ui/needless_return.rs:369:5
|
LL | return { "a".to_string() } + "b" + { "c" };
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@ -666,7 +666,7 @@ LL + ({ "a".to_string() } + "b" + { "c" })
|
error: unneeded `return` statement
--> tests/ui/needless_return.rs:369:5
--> tests/ui/needless_return.rs:373:5
|
LL | return "".split("").next().unwrap().to_string();
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^