Rustup to rust-lang/rust#62672

try macro is deprecated now, so Clippy will drop the support for it also

Author: flip1995

tests/ui/cognitive_complexity.rs

@@ -322,14 +322,14 @@ fn try_() -> Result<i32, &'static str> {
 
 #[clippy::cognitive_complexity = "0"]
 fn try_again() -> Result<i32, &'static str> {
-    let _ = r#try!(Ok(42));
-    let _ = r#try!(Ok(43));
-    let _ = r#try!(Ok(44));
-    let _ = r#try!(Ok(45));
-    let _ = r#try!(Ok(46));
-    let _ = r#try!(Ok(47));
-    let _ = r#try!(Ok(48));
-    let _ = r#try!(Ok(49));
+    let _ = Ok(42)?;
+    let _ = Ok(43)?;
+    let _ = Ok(44)?;
+    let _ = Ok(45)?;
+    let _ = Ok(46)?;
+    let _ = Ok(47)?;
+    let _ = Ok(48)?;
+    let _ = Ok(49)?;
     match 5 {
         5 => Ok(5),
         _ => return Err("bla"),

tests/ui/cognitive_complexity.stderr

@@ -230,9 +230,9 @@ error: the function has a cognitive complexity of 1
   --> $DIR/cognitive_complexity.rs:324:1
    |
 LL | / fn try_again() -> Result<i32, &'static str> {
-LL | |     let _ = r#try!(Ok(42));
-LL | |     let _ = r#try!(Ok(43));
-LL | |     let _ = r#try!(Ok(44));
+LL | |     let _ = Ok(42)?;
+LL | |     let _ = Ok(43)?;
+LL | |     let _ = Ok(44)?;
 ...  |
 LL | |     }
 LL | | }

tests/ui/if_same_then_else.rs

@@ -215,10 +215,10 @@ fn if_same_then_else() -> Result<&'static str, ()> {
     };
 
     if true {
-        r#try!(Ok("foo"));
+        Ok("foo")?;
     } else {
         //~ ERROR same body as `if` block
-        r#try!(Ok("foo"));
+        Ok("foo")?;
     }
 
     if true {

tests/ui/if_same_then_else.stderr

@@ -197,7 +197,7 @@ error: this `if` has identical blocks
 LL |       } else {
    |  ____________^
 LL | |         //~ ERROR same body as `if` block
-LL | |         r#try!(Ok("foo"));
+LL | |         Ok("foo")?;
 LL | |     }
    | |_____^
    |
@@ -206,7 +206,7 @@ note: same as this
    |
 LL |       if true {
    |  _____________^
-LL | |         r#try!(Ok("foo"));
+LL | |         Ok("foo")?;
 LL | |     } else {
    | |_____^
 

tests/ui/redundant_closure_call.rs

@@ -19,5 +19,5 @@ fn main() {
     #[allow(clippy::needless_return)]
     (|| return 2)();
     (|| -> Option<i32> { None? })();
-    (|| -> Result<i32, i32> { r#try!(Err(2)) })();
+    (|| -> Result<i32, i32> { Err(2)? })();
 }

tests/ui/unused_io_amount.rs

@@ -3,13 +3,6 @@
 
 use std::io;
 
-fn try_macro<T: io::Read + io::Write>(s: &mut T) -> io::Result<()> {
-    r#try!(s.write(b"test"));
-    let mut buf = [0u8; 4];
-    r#try!(s.read(&mut buf));
-    Ok(())
-}
-
 fn question_mark<T: io::Read + io::Write>(s: &mut T) -> io::Result<()> {
     s.write(b"test")?;
     let mut buf = [0u8; 4];

tests/ui/unused_io_amount.stderr

@@ -1,43 +1,28 @@
 error: handle written amount returned or use `Write::write_all` instead
   --> $DIR/unused_io_amount.rs:7:5
    |
-LL |     r#try!(s.write(b"test"));
-   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
+LL |     s.write(b"test")?;
+   |     ^^^^^^^^^^^^^^^^^
    |
    = note: `-D clippy::unused-io-amount` implied by `-D warnings`
-   = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
 
 error: handle read amount returned or use `Read::read_exact` instead
   --> $DIR/unused_io_amount.rs:9:5
    |
-LL |     r#try!(s.read(&mut buf));
-   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
-   |
-   = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
-
-error: handle written amount returned or use `Write::write_all` instead
-  --> $DIR/unused_io_amount.rs:14:5
-   |
-LL |     s.write(b"test")?;
-   |     ^^^^^^^^^^^^^^^^^
-
-error: handle read amount returned or use `Read::read_exact` instead
-  --> $DIR/unused_io_amount.rs:16:5
-   |
 LL |     s.read(&mut buf)?;
    |     ^^^^^^^^^^^^^^^^^
 
 error: handle written amount returned or use `Write::write_all` instead
-  --> $DIR/unused_io_amount.rs:21:5
+  --> $DIR/unused_io_amount.rs:14:5
    |
 LL |     s.write(b"test").unwrap();
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
 
 error: handle read amount returned or use `Read::read_exact` instead
-  --> $DIR/unused_io_amount.rs:23:5
+  --> $DIR/unused_io_amount.rs:16:5
    |
 LL |     s.read(&mut buf).unwrap();
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
 
-error: aborting due to 6 previous errors
+error: aborting due to 4 previous errors