error: this block may be rewritten with the `?` operator
  --> $DIR/question_mark.rs:5:5
   |
LL | /     if a.is_none() {
LL | |         return None;
LL | |     }
   | |_____^ help: replace it with: `a?;`
   |
   = note: `-D clippy::question-mark` implied by `-D warnings`

error: this block may be rewritten with the `?` operator
  --> $DIR/question_mark.rs:50:9
   |
LL | /         if (self.opt).is_none() {
LL | |             return None;
LL | |         }
   | |_________^ help: replace it with: `(self.opt)?;`

error: this block may be rewritten with the `?` operator
  --> $DIR/question_mark.rs:54:9
   |
LL | /         if self.opt.is_none() {
LL | |             return None
LL | |         }
   | |_________^ help: replace it with: `self.opt?;`

error: this block may be rewritten with the `?` operator
  --> $DIR/question_mark.rs:58:17
   |
LL |           let _ = if self.opt.is_none() {
   |  _________________^
LL | |             return None;
LL | |         } else {
LL | |             self.opt
LL | |         };
   | |_________^ help: replace it with: `Some(self.opt?)`

error: this if-let-else may be rewritten with the `?` operator
  --> $DIR/question_mark.rs:64:17
   |
LL |           let _ = if let Some(x) = self.opt {
   |  _________________^
LL | |             x
LL | |         } else {
LL | |             return None;
LL | |         };
   | |_________^ help: replace it with: `self.opt?`

error: this block may be rewritten with the `?` operator
  --> $DIR/question_mark.rs:81:9
   |
LL | /         if self.opt.is_none() {
LL | |             return None;
LL | |         }
   | |_________^ help: replace it with: `self.opt.as_ref()?;`

error: this block may be rewritten with the `?` operator
  --> $DIR/question_mark.rs:89:9
   |
LL | /         if self.opt.is_none() {
LL | |             return None;
LL | |         }
   | |_________^ help: replace it with: `self.opt.as_ref()?;`

error: this block may be rewritten with the `?` operator
  --> $DIR/question_mark.rs:97:9
   |
LL | /         if self.opt.is_none() {
LL | |             return None;
LL | |         }
   | |_________^ help: replace it with: `self.opt.as_ref()?;`

error: this if-let-else may be rewritten with the `?` operator
  --> $DIR/question_mark.rs:104:26
   |
LL |           let v: &Vec<_> = if let Some(ref v) = self.opt {
   |  __________________________^
LL | |             v
LL | |         } else {
LL | |             return None;
LL | |         };
   | |_________^ help: replace it with: `self.opt.as_ref()?`

error: this if-let-else may be rewritten with the `?` operator
  --> $DIR/question_mark.rs:114:17
   |
LL |           let v = if let Some(v) = self.opt {
   |  _________________^
LL | |             v
LL | |         } else {
LL | |             return None;
LL | |         };
   | |_________^ help: replace it with: `self.opt?`

error: this block may be rewritten with the `?` operator
  --> $DIR/question_mark.rs:129:5
   |
LL | /     if f().is_none() {
LL | |         return None;
LL | |     }
   | |_____^ help: replace it with: `f()?;`

error: aborting due to 11 previous errors