]> git.proxmox.com Git - rustc.git/blobdiff - src/tools/rustfmt/tests/source/expr.rs
Update upstream source from tag 'upstream/1.52.1+dfsg1'
[rustc.git] / src / tools / rustfmt / tests / source / expr.rs
diff --git a/src/tools/rustfmt/tests/source/expr.rs b/src/tools/rustfmt/tests/source/expr.rs
new file mode 100644 (file)
index 0000000..21f8a4a
--- /dev/null
@@ -0,0 +1,579 @@
+// rustfmt-normalize_comments: true
+// rustfmt-wrap_comments: true
+// Test expressions
+
+fn foo() -> bool {
+    let boxed: Box<i32> = box   5;
+    let referenced = &5 ;
+
+    let very_long_variable_name = ( a +  first +   simple + test   );
+    let very_long_variable_name = (a + first + simple + test + AAAAAAAAAAAAA + BBBBBBBBBBBBBBBBB + b + c);
+
+    let is_internalxxxx = self.source_map.span_to_filename(s) == self.source_map.span_to_filename(m.inner);
+
+    let some_val = aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa * bbbb / (bbbbbb -
+        function_call(x, *very_long_pointer, y))
+    + 1000  ;
+
+some_ridiculously_loooooooooooooooooooooong_function(10000 * 30000000000 + 40000 / 1002200000000
+                                                     - 50000 * sqrt(-1),
+                                                     trivial_value);
+    (((((((((aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa + a +
+             aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa + aaaaa)))))))))   ;
+
+    { for _ in 0..10 {} }
+
+    {{{{}}}}
+
+     if  1  + 2 > 0  { let result = 5; result } else { 4};
+
+    if  let   Some(x)  =  aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa {
+        // Nothing
+    }
+
+    if  let   Some(x)  =  (aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa + aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) {}
+
+    if let (some_very_large,
+            tuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuple) = 1
+        + 2 + 3 {
+    }
+
+    if let (some_very_large,
+            tuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuple) = 1111 + 2222 {}
+
+    if let (some_very_large, tuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuple) = 1
+ + 2 + 3 {
+    }
+
+    if let ast::ItemKind::Trait(_, unsafety, ref generics, ref type_param_bounds, ref trait_items) = item.node
+    {
+        // nothing
+    }
+
+    let test = if true { 5 } else { 3 };
+
+    if cond() {
+        something();
+    } else  if different_cond() {
+        something_else();
+    } else {
+        // Check subformatting
+        aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa + aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
+    }
+
+    // #2884
+    let _ = [0; {struct Foo; impl Foo {const fn get(&self) -> usize {5}}; Foo.get()}];
+}
+
+fn bar() {
+    let range = (   111111111 + 333333333333333333 + 1111 +   400000000000000000) .. (2222 +  2333333333333333);
+
+    let another_range = 5..some_func( a , b /* comment */);
+
+    for _  in  1 ..{ call_forever(); }
+
+    syntactically_correct(loop { sup( '?'); }, if cond { 0 } else { 1 });
+
+    let third = ..10;
+    let infi_range = ..   ;
+    let foo = 1..;
+    let bar = 5 ;
+    let nonsense = (10 .. 0)..(0..10);
+
+    loop{if true {break}}
+
+    let x = (aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa &&
+             aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,
+             a);
+}
+
+fn baz() {
+    unsafe    /*    {}{}{}{{{{}}   */   {
+        let foo = 1u32;
+    }
+
+    unsafe /* very looooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooong comment */ {}
+
+    unsafe // So this is a very long comment.
+           // Multi-line, too.
+           // Will it still format correctly?
+    {
+    }
+
+    unsafe {
+        // Regular unsafe block
+    }
+
+    unsafe {
+        foo()
+    }
+
+    unsafe {
+        foo();
+    }
+
+    // #2289
+    let identifier_0 = unsafe { this_is_58_chars_long_and_line_is_93_chars_long_xxxxxxxxxx };
+    let identifier_1 = unsafe { this_is_59_chars_long_and_line_is_94_chars_long_xxxxxxxxxxx };
+    let identifier_2 = unsafe { this_is_65_chars_long_and_line_is_100_chars_long_xxxxxxxxxxxxxxxx };
+    let identifier_3 = unsafe { this_is_66_chars_long_and_line_is_101_chars_long_xxxxxxxxxxxxxxxxx };
+}
+
+// Test some empty blocks.
+fn qux() {
+    {}
+    // FIXME this one could be done better.
+    { /* a block with a comment */ }
+    {
+
+    }
+    {
+        // A block with a comment.
+    }
+}
+
+fn issue227() {
+    {
+        let handler = box DocumentProgressHandler::new(addr, DocumentProgressTask::DOMContentLoaded);
+    }
+}
+
+fn issue184(source: &str) {
+    for c in source.chars() {
+        if index < 'a' {
+            continue;
+        }
+    }
+}
+
+fn arrays() {
+    let x = [0,
+         1,
+         2,
+         3,
+         4,
+         5,
+         6,
+         7,
+         8,
+         9,
+         0,
+         1,
+         2,
+         3,
+         4,
+         5,
+         6,
+         7,
+         8,
+         9,
+         0,
+         7,
+         8,
+         9,
+         0,
+         1,
+         2,
+         3,
+         4,
+         5,
+         6,
+         7,
+         8,
+         9,
+         0];
+
+    let y = [/* comment */ 1, 2 /* post comment */, 3];
+
+    let xy =    [ strukt  { test123: value_one_two_three_four, turbo: coolio(), } , /* comment  */   1 ];
+
+        let a =WeightedChoice::new(&mut [Weighted {
+            weightweight: x,
+            item: 0,
+        },
+                                  Weighted {
+            weightweight: 1,
+            item: 1,
+        },
+                                  Weighted {
+            weightweight: x,
+            item: 2,
+        },
+                                  Weighted {
+            weightweight: 1,
+            item: 3,
+        }]);
+
+    let z = [xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx, yyyyyyyyyyyyyyyyyyyyyyyyyyy, zzzzzzzzzzzzzzzzzz, q];
+
+    [ 1 +   3, 4 ,  5, 6, 7, 7, fncall::<Vec<_>>(3-1)]
+}
+
+fn returns() {
+    aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa && return;
+
+    return aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa + aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa;
+}
+
+fn addrof() {
+    &    mut(aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa+bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb);
+    &    (aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa+bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb);
+
+    // raw reference operator
+    & raw   const  a;
+    & raw   mut    b;
+}
+
+fn casts() {
+    fn unpack(packed: u32) -> [u16; 2] {
+        [
+            (packed >> 16) as u16,
+            (packed >>  0) as u16,
+        ]
+    }
+
+    let some_trait_xxx = xxxxxxxxxxx + xxxxxxxxxxxxx
+        as SomeTraitXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX;
+    let slightly_longer_trait = yyyyyyyyy + yyyyyyyyyyy as SomeTraitYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYY;
+}
+
+fn indices() {
+    let x = (aaaaaaaaaaaaaaaaaaaaaaaaaaaa+bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb+cccccccccccccccc) [ x + y + z ];
+    let y = (aaaaaaaaaaaaaaaaaaaaaaaaaaaa + bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb + cccccccccccccccc)[ xxxxx + yyyyy + zzzzz ];
+    let z = xxxxxxxxxx.x().y().zzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz()[aaaaa];
+    let z = xxxxxxxxxx.x().y().zzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz()[aaaaa];
+}
+
+fn repeats() {
+    let x = [aaaaaaaaaaaaaaaaaaaaaaaaaaaa+bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb+cccccccccccccccc; x + y + z ];
+    let y = [aaaaaaaaaaaaaaaaaaaaaaaaaaaa + bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb + cccccccccccccccc; xxxxx + yyyyy + zzzzz ];
+}
+
+fn blocks() {
+    if 1 + 1 == 2 {
+        println!("yay arithmetix!");
+    };
+}
+
+fn issue767() {
+    if false {
+        if false {
+        } else {
+            // A let binding here seems necessary to trigger it.
+            let _ = ();
+        }
+    } else if let false = false {
+    }
+}
+
+fn ranges() {
+    let x = aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa .. bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb;
+    let y = aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa ..= bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb;
+    let z = ..= x ;
+
+    // #1766
+    let x = [0. ..10.0];
+    let x = [0. ..=10.0];
+
+    a ..= b
+
+    // the expr below won't compile because inclusive ranges need a defined end
+    // let a = 0 ..= ;
+}
+
+fn if_else() {
+  let exact = diff /
+            (if size == 0 {
+    1
+} else {
+    size
+});
+
+            let cx = tp1.x +
+                 any * radius *
+                 if anticlockwise {
+            1.0
+      } else {
+           -1.0
+       };
+}
+
+fn complex_if_else() {
+    if let Some(x) = xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx {
+    } else if let Some(x) = xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx {
+        ha();
+    } else if xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx + xxxxxxxx {
+        yo();
+    } else if let Some(x) = xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx {
+        ha();
+    } else if xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx + xxxxxxxxx {
+        yo();
+    }
+}
+
+fn issue1106() {
+    {
+    if let hir::ItemEnum(ref enum_def, ref generics) = self.ast_map.expect_item(enum_node_id).node {
+    }
+    }
+
+    for entry in
+    WalkDir::new(path)
+        .into_iter()
+        .filter_entry(|entry| exclusions.filter_entry(entry)) {
+    }
+}
+
+fn issue1570() {
+    a_very_long_function_name({some_func(1, {1})})
+}
+
+fn issue1714() {
+    v = &mut {v}[mid..];
+    let (left, right) = {v}.split_at_mut(mid);
+}
+
+// Multi-lined index should be put on the next line if it fits in one line.
+fn issue1749() {
+    {
+        {
+            {
+                if self.shape[(r as f32 + self.x_offset) as usize][(c as f32 + self.y_offset) as usize] != 0 {
+                    // hello
+                }
+            }
+        }
+    }
+}
+
+// #1172
+fn newlines_between_list_like_expr() {
+    foo(
+        xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx,
+
+        yyyyyyyyyyyyyyyyyyyyyyyyyyyyyy,
+
+        zzzzzzzzzzzzzzzzzzzzzzzzzzzzzz,
+    );
+
+    vec![
+        xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx,
+
+        yyyyyyyyyyyyyyyyyyyyyyyyyyyyyy,
+
+        zzzzzzzzzzzzzzzzzzzzzzzzzzzzzz,
+    ];
+
+    match x {
+        xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx |
+
+        yyyyyyyyyyyyyyyyyyyyyyyyyyyyyy |
+
+        zzzzzzzzzzzzzzzzzzzzzzzzzzzzzz => foo(a, b, c),
+        _ => bar(),
+    };
+}
+
+fn issue2178() {
+    Ok(result.iter().map(|item| ls_util::rls_to_location(item)).collect())
+}
+
+// #2493
+impl Foo {
+fn bar(&self) {
+    {
+        let x = match () {
+            () => {
+                let i;
+                i == self.install_config.storage.experimental_compressed_block_size as usize
+            }
+        };
+    }
+}
+}
+
+fn dots() {
+    .. .. ..; // (.. (.. (..)))
+    ..= ..= ..;
+    (..) .. ..; // ((..) .. (..))
+}
+
+// #2676
+// A function call with a large single argument.
+fn foo() {
+    let my_var =
+        Mutex::new(RpcClientType::connect(server_iddd).chain_err(|| "Unable to create RPC client")?);
+}
+
+// #2704
+// Method call with prefix and suffix.
+fn issue2704() {
+    // We should not combine the callee with a multi-lined method call.
+    let requires = requires.set(&requires0
+                                .concat(&requires1)
+                                .concat(&requires2)
+                                .distinct_total());
+    let requires = requires.set(box requires0
+                                .concat(&requires1)
+                                .concat(&requires2)
+                                .distinct_total());
+    let requires = requires.set(requires0
+                                .concat(&requires1)
+                                .concat(&requires2)
+                                .distinct_total() as u32);
+    let requires = requires.set(requires0
+                                .concat(&requires1)
+                                .concat(&requires2)
+                                .distinct_total()?);
+    let requires = requires.set(!requires0
+                                .concat(&requires1)
+                                .concat(&requires2)
+                                .distinct_total());
+    // We should combine a small callee with an argument.
+    bar(vec![22]
+        .into_iter()
+        .map(|x| x * 2)
+        .filter(|_| true)
+        .collect());
+    // But we should not combine a long callee with an argument.
+    barrrr(vec![22]
+        .into_iter()
+        .map(|x| x * 2)
+        .filter(|_| true)
+        .collect());
+}
+
+// #2782
+fn issue2782() {
+    {let f={let f={{match f{F(f,_)=>{{loop{let f={match f{F(f,_)=>{{match f{F(f,_)=>{{loop{let f={let f={match f{'-'=>F(f,()),}};};}}}}}}}};}}}}}};};}
+}
+
+fn issue_2802() {
+    function_to_fill_this_line(some_arg, some_arg, some_arg)
+        * a_very_specific_length(specific_length_arg) * very_specific_length(Foo {
+        a: some_much_much_longer_value,
+    }) * some_value
+}
+
+fn issue_3003() {
+    let mut path: PathBuf = [
+        env!("CARGO_MANIFEST_DIR"),
+        "tests",
+        "support",
+        "dejavu-fonts-ttf-2.37",
+        "ttf",
+    ]
+        .iter()
+        .collect();
+}
+
+fn issue3226() {
+    {
+        {
+            {
+                return Err(ErrorKind::ManagementInterfaceError("Server exited unexpectedly").into())
+            }
+        }
+    }
+    {
+        {
+            {
+                break Err(ErrorKind::ManagementInterfaceError("Server exited unexpectedlyy").into())
+            }
+        }
+    }
+}
+
+// #3457
+fn issue3457() {
+    {
+        {
+            {
+                {
+                    {
+                        {
+                            {
+                                {
+                                    {
+                                        {
+                                            {
+                                                {
+                                                    {
+                                                        {
+                                                            {
+                                                                {
+                                                                    {
+                                                                        {
+                                                                            {
+                                                                                {
+                                                                                    {
+                                                                                        {
+                                                                                            {
+                                                                                                {
+                                                                                                    println!("Test");
+                                                                                                }
+                                                                                            }
+                                                                                        }
+                                                                                    }
+                                                                                }
+                                                                            }
+                                                                        }
+                                                                    }
+                                                                }
+                                                            }
+                                                        }
+                                                    }
+                                                }
+                                            }
+                                        }
+                                    }
+                                }
+                            }
+                        }
+                    }
+                }
+            }
+        }
+    }
+}
+
+// #3498
+static REPRO: &[usize] = &[#[cfg(feature = "zero")]
+                           0];
+
+fn overflow_with_attr() {
+    foo(#[cfg(feature = "zero")]
+        0);
+    foobar(#[cfg(feature = "zero")]
+           0);
+    foobar(x, y, #[cfg(feature = "zero")]
+           {});
+}
+
+
+// https://github.com/rust-lang/rustfmt/issues/3765
+fn foo() {
+    async {
+        // Do
+        // some
+        // work
+    }
+    .await;
+
+    async {
+        // Do
+        // some
+        // work
+    }
+        .await;
+}
+
+fn underscore() {
+        _= 1;
+        _;
+        [  _,a,_  ] = [1, 2, 3];
+    (a,   _) = (8, 9);
+    TupleStruct(  _, a) = TupleStruct(2, 2);
+
+    let _  : usize = foo(_, _);
+}