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Update question_mark test to behave better

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dswij 2021-10-22 14:11:04 +08:00 committed by Dharma Saputra Wijaya
parent a91ec59460
commit 2fd168285a
3 changed files with 25 additions and 29 deletions
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14
tests/ui/question_mark.fixed
View file

@ -2,9 +2,6 @@
#![allow(unreachable_code)]
#![allow(clippy::unnecessary_wraps)]
use std::env;
use std::path::PathBuf;
fn some_func(a: Option<u32>) -> Option<u32> {
a?;
@ -107,20 +104,20 @@ fn func() -> Option<i32> {
Some(0)
}
fn func_returning_result() -> Result<i32, String> {
fn func_returning_result() -> Result<i32, i32> {
Ok(1)
}
fn result_func(x: Result<i32, String>) -> Result<i32, String> {
fn result_func(x: Result<i32, i32>) -> Result<i32, i32> {
let _ = x?;
x.as_ref()?;
x?;
// No warning
let y = if let Ok(x) = x {
x
} else {
return Err("some error".to_string());
return Err(0);
};
// issue #7859
@ -128,9 +125,10 @@ fn result_func(x: Result<i32, String>) -> Result<i32, String> {
let _ = if let Ok(x) = func_returning_result() {
x
} else {
return Err("some error".to_string());
return Err(0);
};
// no warning
if func_returning_result().is_err() {
return func_returning_result();
}

12
tests/ui/question_mark.rs
View file

@ -2,9 +2,6 @@
#![allow(unreachable_code)]
#![allow(clippy::unnecessary_wraps)]
use std::env;
use std::path::PathBuf;
fn some_func(a: Option<u32>) -> Option<u32> {
if a.is_none() {
return None;
@ -137,11 +134,11 @@ fn func() -> Option<i32> {
Some(0)
}
fn func_returning_result() -> Result<i32, String> {
fn func_returning_result() -> Result<i32, i32> {
Ok(1)
}
fn result_func(x: Result<i32, String>) -> Result<i32, String> {
fn result_func(x: Result<i32, i32>) -> Result<i32, i32> {
let _ = if let Ok(x) = x { x } else { return x };
if x.is_err() {
@ -152,7 +149,7 @@ fn result_func(x: Result<i32, String>) -> Result<i32, String> {
let y = if let Ok(x) = x {
x
} else {
return Err("some error".to_string());
return Err(0);
};
// issue #7859
@ -160,9 +157,10 @@ fn result_func(x: Result<i32, String>) -> Result<i32, String> {
let _ = if let Ok(x) = func_returning_result() {
x
} else {
return Err("some error".to_string());
return Err(0);
};
// no warning
if func_returning_result().is_err() {
return func_returning_result();
}

28
tests/ui/question_mark.stderr
View file

@ -1,5 +1,5 @@
error: this block may be rewritten with the `?` operator
--> $DIR/question_mark.rs:9:5
--> $DIR/question_mark.rs:6:5
|
LL | / if a.is_none() {
LL | | return None;
@ -9,7 +9,7 @@ LL | | }
= note: `-D clippy::question-mark` implied by `-D warnings`
error: this block may be rewritten with the `?` operator
--> $DIR/question_mark.rs:54:9
--> $DIR/question_mark.rs:51:9
|
LL | / if (self.opt).is_none() {
LL | | return None;
@ -17,7 +17,7 @@ LL | | }
| |_________^ help: replace it with: `(self.opt)?;`
error: this block may be rewritten with the `?` operator
--> $DIR/question_mark.rs:58:9
--> $DIR/question_mark.rs:55:9
|
LL | / if self.opt.is_none() {
LL | | return None
@ -25,7 +25,7 @@ LL | | }
| |_________^ help: replace it with: `self.opt?;`
error: this block may be rewritten with the `?` operator
--> $DIR/question_mark.rs:62:17
--> $DIR/question_mark.rs:59:17
|
LL | let _ = if self.opt.is_none() {
| _________________^
@ -36,7 +36,7 @@ LL | | };
| |_________^ help: replace it with: `Some(self.opt?)`
error: this if-let-else may be rewritten with the `?` operator
--> $DIR/question_mark.rs:68:17
--> $DIR/question_mark.rs:65:17
|
LL | let _ = if let Some(x) = self.opt {
| _________________^
@ -47,7 +47,7 @@ LL | | };
| |_________^ help: replace it with: `self.opt?`
error: this block may be rewritten with the `?` operator
--> $DIR/question_mark.rs:85:9
--> $DIR/question_mark.rs:82:9
|
LL | / if self.opt.is_none() {
LL | | return None;
@ -55,7 +55,7 @@ LL | | }
| |_________^ help: replace it with: `self.opt.as_ref()?;`
error: this block may be rewritten with the `?` operator
--> $DIR/question_mark.rs:93:9
--> $DIR/question_mark.rs:90:9
|
LL | / if self.opt.is_none() {
LL | | return None;
@ -63,7 +63,7 @@ LL | | }
| |_________^ help: replace it with: `self.opt.as_ref()?;`
error: this block may be rewritten with the `?` operator
--> $DIR/question_mark.rs:101:9
--> $DIR/question_mark.rs:98:9
|
LL | / if self.opt.is_none() {
LL | | return None;
@ -71,7 +71,7 @@ LL | | }
| |_________^ help: replace it with: `self.opt.as_ref()?;`
error: this if-let-else may be rewritten with the `?` operator
--> $DIR/question_mark.rs:108:26
--> $DIR/question_mark.rs:105:26
|
LL | let v: &Vec<_> = if let Some(ref v) = self.opt {
| __________________________^
@ -82,7 +82,7 @@ LL | | };
| |_________^ help: replace it with: `self.opt.as_ref()?`
error: this if-let-else may be rewritten with the `?` operator
--> $DIR/question_mark.rs:118:17
--> $DIR/question_mark.rs:115:17
|
LL | let v = if let Some(v) = self.opt {
| _________________^
@ -93,7 +93,7 @@ LL | | };
| |_________^ help: replace it with: `self.opt?`
error: this block may be rewritten with the `?` operator
--> $DIR/question_mark.rs:133:5
--> $DIR/question_mark.rs:130:5
|
LL | / if f().is_none() {
LL | | return None;
@ -101,18 +101,18 @@ LL | | }
| |_____^ help: replace it with: `f()?;`
error: this if-let-else may be rewritten with the `?` operator
--> $DIR/question_mark.rs:145:13
--> $DIR/question_mark.rs:142:13
|
LL | let _ = if let Ok(x) = x { x } else { return x };
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `x?`
error: this block may be rewritten with the `?` operator
--> $DIR/question_mark.rs:147:5
--> $DIR/question_mark.rs:144:5
|
LL | / if x.is_err() {
LL | | return x;
LL | | }
| |_____^ help: replace it with: `x.as_ref()?;`
| |_____^ help: replace it with: `x?;`
error: aborting due to 13 previous errors