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Add more double cast + method call tests

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This commit is contained in:
David Ross 2020-02-22 11:36:09 -08:00
parent 8ef3da0858
commit fa1f547f82
2 changed files with 105 additions and 22 deletions
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23
src/test/ui/parser/issue-35813-postfix-after-cast.rs
View file

@ -35,6 +35,29 @@ pub fn cast_after_cast() {
let _ = 0i32: i32: i32 as u32 as i32; let _ = 0i32: i32: i32 as u32 as i32;
} }
pub fn cast_cast_method_call() {
let _ = 0i32: i32: i32.count_ones();
//~^ ERROR: casts cannot be followed by a method call
let _ = 0 as i32: i32.count_ones();
//~^ ERROR: casts cannot be followed by a method call
let _ = 0i32: i32 as i32.count_ones();
//~^ ERROR: casts cannot be followed by a method call
let _ = 0 as i32 as i32.count_ones();
//~^ ERROR: casts cannot be followed by a method call
let _ = 0i32: i32: i32 as u32 as i32.count_ones();
//~^ ERROR: casts cannot be followed by a method call
let _ = 0i32: i32.count_ones(): u32;
//~^ ERROR: casts cannot be followed by a method call
let _ = 0 as i32.count_ones(): u32;
//~^ ERROR: casts cannot be followed by a method call
let _ = 0i32: i32.count_ones() as u32;
//~^ ERROR: casts cannot be followed by a method call
let _ = 0 as i32.count_ones() as u32;
//~^ ERROR: casts cannot be followed by a method call
let _ = 0i32: i32: i32.count_ones() as u32 as i32;
//~^ ERROR: casts cannot be followed by a method call
}
// this tests that the precedence for `!x as Y.Z` is still what we expect // this tests that the precedence for `!x as Y.Z` is still what we expect
pub fn precedence() { pub fn precedence() {
let x: i32 = &vec![1, 2, 3] as &Vec<i32>[0]; let x: i32 = &vec![1, 2, 3] as &Vec<i32>[0];

104
src/test/ui/parser/issue-35813-postfix-after-cast.stderr
View file

@ -22,68 +22,128 @@ error: casts cannot be followed by indexing
LL | (&[0i32]): &[i32; 1][0]; LL | (&[0i32]): &[i32; 1][0];
| ^^^^^^^^^^^^^^^^^^^^ help: try surrounding the expression in parentheses: `((&[0i32]): &[i32; 1])` | ^^^^^^^^^^^^^^^^^^^^ help: try surrounding the expression in parentheses: `((&[0i32]): &[i32; 1])`
error: casts cannot be followed by a method call
--> $DIR/issue-35813-postfix-after-cast.rs:39:13
|
LL | let _ = 0i32: i32: i32.count_ones();
| ^^^^^^^^^^^^^^ help: try surrounding the expression in parentheses: `(0i32: i32: i32)`
error: casts cannot be followed by a method call
--> $DIR/issue-35813-postfix-after-cast.rs:41:13
|
LL | let _ = 0 as i32: i32.count_ones();
| ^^^^^^^^^^^^^ help: try surrounding the expression in parentheses: `(0 as i32: i32)`
error: casts cannot be followed by a method call
--> $DIR/issue-35813-postfix-after-cast.rs:43:13
|
LL | let _ = 0i32: i32 as i32.count_ones();
| ^^^^^^^^^^^^^^^^ help: try surrounding the expression in parentheses: `(0i32: i32 as i32)`
error: casts cannot be followed by a method call
--> $DIR/issue-35813-postfix-after-cast.rs:45:13
|
LL | let _ = 0 as i32 as i32.count_ones();
| ^^^^^^^^^^^^^^^ help: try surrounding the expression in parentheses: `(0 as i32 as i32)`
error: casts cannot be followed by a method call
--> $DIR/issue-35813-postfix-after-cast.rs:47:13
|
LL | let _ = 0i32: i32: i32 as u32 as i32.count_ones();
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try surrounding the expression in parentheses: `(0i32: i32: i32 as u32 as i32)`
error: casts cannot be followed by a method call
--> $DIR/issue-35813-postfix-after-cast.rs:49:13
|
LL | let _ = 0i32: i32.count_ones(): u32;
| ^^^^^^^^^ help: try surrounding the expression in parentheses: `(0i32: i32)`
error: casts cannot be followed by a method call
--> $DIR/issue-35813-postfix-after-cast.rs:51:13
|
LL | let _ = 0 as i32.count_ones(): u32;
| ^^^^^^^^ help: try surrounding the expression in parentheses: `(0 as i32)`
error: casts cannot be followed by a method call
--> $DIR/issue-35813-postfix-after-cast.rs:53:13
|
LL | let _ = 0i32: i32.count_ones() as u32;
| ^^^^^^^^^ help: try surrounding the expression in parentheses: `(0i32: i32)`
error: casts cannot be followed by a method call
--> $DIR/issue-35813-postfix-after-cast.rs:55:13
|
LL | let _ = 0 as i32.count_ones() as u32;
| ^^^^^^^^ help: try surrounding the expression in parentheses: `(0 as i32)`
error: casts cannot be followed by a method call
--> $DIR/issue-35813-postfix-after-cast.rs:57:13
|
LL | let _ = 0i32: i32: i32.count_ones() as u32 as i32;
| ^^^^^^^^^^^^^^ help: try surrounding the expression in parentheses: `(0i32: i32: i32)`
error: casts cannot be followed by indexing error: casts cannot be followed by indexing
--> $DIR/issue-35813-postfix-after-cast.rs:40:18 --> $DIR/issue-35813-postfix-after-cast.rs:63:18
| |
LL | let x: i32 = &vec![1, 2, 3] as &Vec<i32>[0]; LL | let x: i32 = &vec![1, 2, 3] as &Vec<i32>[0];
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try surrounding the expression in parentheses: `(&vec![1, 2, 3] as &Vec<i32>)` | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try surrounding the expression in parentheses: `(&vec![1, 2, 3] as &Vec<i32>)`
error: casts cannot be followed by a method call error: casts cannot be followed by a method call
--> $DIR/issue-35813-postfix-after-cast.rs:45:5 --> $DIR/issue-35813-postfix-after-cast.rs:68:5
| |
LL | 0 as i32.max(0); LL | 0 as i32.max(0);
| ^^^^^^^^ help: try surrounding the expression in parentheses: `(0 as i32)` | ^^^^^^^^ help: try surrounding the expression in parentheses: `(0 as i32)`
error: casts cannot be followed by a method call error: casts cannot be followed by a method call
--> $DIR/issue-35813-postfix-after-cast.rs:47:5 --> $DIR/issue-35813-postfix-after-cast.rs:70:5
| |
LL | 0: i32.max(0); LL | 0: i32.max(0);
| ^^^^^^ help: try surrounding the expression in parentheses: `(0: i32)` | ^^^^^^ help: try surrounding the expression in parentheses: `(0: i32)`
error: casts cannot be followed by a method call error: casts cannot be followed by a method call
--> $DIR/issue-35813-postfix-after-cast.rs:62:8 --> $DIR/issue-35813-postfix-after-cast.rs:85:8
| |
LL | if 5u64 as i32.max(0) == 0 { LL | if 5u64 as i32.max(0) == 0 {
| ^^^^^^^^^^^ help: try surrounding the expression in parentheses: `(5u64 as i32)` | ^^^^^^^^^^^ help: try surrounding the expression in parentheses: `(5u64 as i32)`
error: casts cannot be followed by a method call error: casts cannot be followed by a method call
--> $DIR/issue-35813-postfix-after-cast.rs:65:8 --> $DIR/issue-35813-postfix-after-cast.rs:88:8
| |
LL | if 5u64: u64.max(0) == 0 { LL | if 5u64: u64.max(0) == 0 {
| ^^^^^^^^^ help: try surrounding the expression in parentheses: `(5u64: u64)` | ^^^^^^^^^ help: try surrounding the expression in parentheses: `(5u64: u64)`
error: casts cannot be followed by a method call error: casts cannot be followed by a method call
--> $DIR/issue-35813-postfix-after-cast.rs:72:9 --> $DIR/issue-35813-postfix-after-cast.rs:95:9
| |
LL | 5u64 as u32.max(0) == 0 LL | 5u64 as u32.max(0) == 0
| ^^^^^^^^^^^ help: try surrounding the expression in parentheses: `(5u64 as u32)` | ^^^^^^^^^^^ help: try surrounding the expression in parentheses: `(5u64 as u32)`
error: casts cannot be followed by a method call error: casts cannot be followed by a method call
--> $DIR/issue-35813-postfix-after-cast.rs:76:9 --> $DIR/issue-35813-postfix-after-cast.rs:99:9
| |
LL | 5u64: u64.max(0) == 0 LL | 5u64: u64.max(0) == 0
| ^^^^^^^^^ help: try surrounding the expression in parentheses: `(5u64: u64)` | ^^^^^^^^^ help: try surrounding the expression in parentheses: `(5u64: u64)`
error: casts cannot be followed by indexing error: casts cannot be followed by indexing
--> $DIR/issue-35813-postfix-after-cast.rs:81:24 --> $DIR/issue-35813-postfix-after-cast.rs:104:24
| |
LL | static bar: &[i32] = &(&[1,2,3] as &[i32][0..1]); LL | static bar: &[i32] = &(&[1,2,3] as &[i32][0..1]);
| ^^^^^^^^^^^^^^^^^^ help: try surrounding the expression in parentheses: `(&[1,2,3] as &[i32])` | ^^^^^^^^^^^^^^^^^^ help: try surrounding the expression in parentheses: `(&[1,2,3] as &[i32])`
error: casts cannot be followed by indexing error: casts cannot be followed by indexing
--> $DIR/issue-35813-postfix-after-cast.rs:84:25 --> $DIR/issue-35813-postfix-after-cast.rs:107:25
| |
LL | static bar2: &[i32] = &(&[1i32,2,3]: &[i32; 3][0..1]); LL | static bar2: &[i32] = &(&[1i32,2,3]: &[i32; 3][0..1]);
| ^^^^^^^^^^^^^^^^^^^^^^ help: try surrounding the expression in parentheses: `(&[1i32,2,3]: &[i32; 3])` | ^^^^^^^^^^^^^^^^^^^^^^ help: try surrounding the expression in parentheses: `(&[1i32,2,3]: &[i32; 3])`
error: casts cannot be followed by ? error: casts cannot be followed by ?
--> $DIR/issue-35813-postfix-after-cast.rs:89:5 --> $DIR/issue-35813-postfix-after-cast.rs:112:5
| |
LL | Err(0u64) as Result<u64,u64>?; LL | Err(0u64) as Result<u64,u64>?;
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try surrounding the expression in parentheses: `(Err(0u64) as Result<u64,u64>)` | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try surrounding the expression in parentheses: `(Err(0u64) as Result<u64,u64>)`
error: casts cannot be followed by ? error: casts cannot be followed by ?
--> $DIR/issue-35813-postfix-after-cast.rs:91:5 --> $DIR/issue-35813-postfix-after-cast.rs:114:5
| |
LL | Err(0u64): Result<u64,u64>?; LL | Err(0u64): Result<u64,u64>?;
| ^^^^^^^^^-^^^^^^^^^^^^^^^^ | ^^^^^^^^^-^^^^^^^^^^^^^^^^
@ -94,25 +154,25 @@ LL | Err(0u64): Result<u64,u64>?;
= note: see issue #23416 <https://github.com/rust-lang/rust/issues/23416> for more information = note: see issue #23416 <https://github.com/rust-lang/rust/issues/23416> for more information
error: casts cannot be followed by a function call error: casts cannot be followed by a function call
--> $DIR/issue-35813-postfix-after-cast.rs:115:5 --> $DIR/issue-35813-postfix-after-cast.rs:138:5
| |
LL | drop as fn(u8)(0); LL | drop as fn(u8)(0);
| ^^^^^^^^^^^^^^ help: try surrounding the expression in parentheses: `(drop as fn(u8))` | ^^^^^^^^^^^^^^ help: try surrounding the expression in parentheses: `(drop as fn(u8))`
error: casts cannot be followed by a function call error: casts cannot be followed by a function call
--> $DIR/issue-35813-postfix-after-cast.rs:117:5 --> $DIR/issue-35813-postfix-after-cast.rs:140:5
| |
LL | drop_ptr: fn(u8)(0); LL | drop_ptr: fn(u8)(0);
| ^^^^^^^^^^^^^^^^ help: try surrounding the expression in parentheses: `(drop_ptr: fn(u8))` | ^^^^^^^^^^^^^^^^ help: try surrounding the expression in parentheses: `(drop_ptr: fn(u8))`
error: casts cannot be followed by `.await` error: casts cannot be followed by `.await`
--> $DIR/issue-35813-postfix-after-cast.rs:122:5 --> $DIR/issue-35813-postfix-after-cast.rs:145:5
| |
LL | Box::pin(noop()) as Pin<Box<dyn Future<Output = ()>>>.await; LL | Box::pin(noop()) as Pin<Box<dyn Future<Output = ()>>>.await;
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try surrounding the expression in parentheses: `(Box::pin(noop()) as Pin<Box<dyn Future<Output = ()>>>)` | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try surrounding the expression in parentheses: `(Box::pin(noop()) as Pin<Box<dyn Future<Output = ()>>>)`
error: casts cannot be followed by `.await` error: casts cannot be followed by `.await`
--> $DIR/issue-35813-postfix-after-cast.rs:125:5 --> $DIR/issue-35813-postfix-after-cast.rs:148:5
| |
LL | Box::pin(noop()): Pin<Box<_>>.await; LL | Box::pin(noop()): Pin<Box<_>>.await;
| ^^^^^^^^^^^^^^^^-^^^^^^^^^^^^ | ^^^^^^^^^^^^^^^^-^^^^^^^^^^^^
@ -123,41 +183,41 @@ LL | Box::pin(noop()): Pin<Box<_>>.await;
= note: see issue #23416 <https://github.com/rust-lang/rust/issues/23416> for more information = note: see issue #23416 <https://github.com/rust-lang/rust/issues/23416> for more information
error: casts cannot be followed by a field access error: casts cannot be followed by a field access
--> $DIR/issue-35813-postfix-after-cast.rs:137:5 --> $DIR/issue-35813-postfix-after-cast.rs:160:5
| |
LL | Foo::default() as Foo.bar; LL | Foo::default() as Foo.bar;
| ^^^^^^^^^^^^^^^^^^^^^ help: try surrounding the expression in parentheses: `(Foo::default() as Foo)` | ^^^^^^^^^^^^^^^^^^^^^ help: try surrounding the expression in parentheses: `(Foo::default() as Foo)`
error: casts cannot be followed by a field access error: casts cannot be followed by a field access
--> $DIR/issue-35813-postfix-after-cast.rs:139:5 --> $DIR/issue-35813-postfix-after-cast.rs:162:5
| |
LL | Foo::default(): Foo.bar; LL | Foo::default(): Foo.bar;
| ^^^^^^^^^^^^^^^^^^^ help: try surrounding the expression in parentheses: `(Foo::default(): Foo)` | ^^^^^^^^^^^^^^^^^^^ help: try surrounding the expression in parentheses: `(Foo::default(): Foo)`
error: casts cannot be followed by a method call error: casts cannot be followed by a method call
--> $DIR/issue-35813-postfix-after-cast.rs:54:9 --> $DIR/issue-35813-postfix-after-cast.rs:77:9
| |
LL | if true { 33 } else { 44 } as i32.max(0), LL | if true { 33 } else { 44 } as i32.max(0),
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try surrounding the expression in parentheses: `(if true { 33 } else { 44 } as i32)` | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try surrounding the expression in parentheses: `(if true { 33 } else { 44 } as i32)`
error: casts cannot be followed by a method call error: casts cannot be followed by a method call
--> $DIR/issue-35813-postfix-after-cast.rs:56:9 --> $DIR/issue-35813-postfix-after-cast.rs:79:9
| |
LL | if true { 33 } else { 44 }: i32.max(0) LL | if true { 33 } else { 44 }: i32.max(0)
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try surrounding the expression in parentheses: `(if true { 33 } else { 44 }: i32)` | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try surrounding the expression in parentheses: `(if true { 33 } else { 44 }: i32)`
error[E0214]: parenthesized type parameters may only be used with a `Fn` trait error[E0214]: parenthesized type parameters may only be used with a `Fn` trait
--> $DIR/issue-35813-postfix-after-cast.rs:101:13 --> $DIR/issue-35813-postfix-after-cast.rs:124:13
| |
LL | drop as F(); LL | drop as F();
| ^^^ only `Fn` traits may use parentheses | ^^^ only `Fn` traits may use parentheses
error[E0214]: parenthesized type parameters may only be used with a `Fn` trait error[E0214]: parenthesized type parameters may only be used with a `Fn` trait
--> $DIR/issue-35813-postfix-after-cast.rs:103:15 --> $DIR/issue-35813-postfix-after-cast.rs:126:15
| |
LL | drop_ptr: F(); LL | drop_ptr: F();
| ^^^ only `Fn` traits may use parentheses | ^^^ only `Fn` traits may use parentheses
error: aborting due to 25 previous errors error: aborting due to 35 previous errors
For more information about this error, try `rustc --explain E0214`. For more information about this error, try `rustc --explain E0214`.