#[foo::a] //~ ERROR: paths of length greater than one
fn _test() {}
+fn _test_inner() {
+ #![a] // OK
+}
+
#[a] //~ ERROR: custom attributes cannot be applied to modules
mod _test2 {}
+mod _test2_inner {
+ #![a] //~ ERROR: custom attributes cannot be applied to modules
+}
+
#[a = y] //~ ERROR: must only be followed by a delimiter token
fn _test3() {}
#[a () = ] //~ ERROR: must only be followed by a delimiter token
fn _test5() {}
-fn main() {
+fn attrs() {
+ // Statement, item
+ #[a] // OK
+ struct S;
+
+ // Statement, macro
+ #[a] //~ ERROR: custom attributes cannot be applied to statements
+ println!();
+
+ // Statement, semi
+ #[a] //~ ERROR: custom attributes cannot be applied to statements
+ S;
+
+ // Statement, local
#[a] //~ ERROR: custom attributes cannot be applied to statements
let _x = 2;
- let _x = #[a] 2;
- //~^ ERROR: custom attributes cannot be applied to expressions
-
- let _x: m!(u32) = 3;
- //~^ ERROR: procedural macros cannot be expanded to types
- if let m!(Some(_x)) = Some(3) {
- //~^ ERROR: procedural macros cannot be expanded to patterns
- }
- let _x = m!(3);
- //~^ ERROR: procedural macros cannot be expanded to expressions
- m!(let _x = 3;);
- //~^ ERROR: procedural macros cannot be expanded to statements
+
+ // Expr
+ let _x = #[a] 2; //~ ERROR: custom attributes cannot be applied to expressions
+
+ // Opt expr
+ let _x = [#[a] 2]; //~ ERROR: custom attributes cannot be applied to expressions
+
+ // Expr macro
+ let _x = #[a] println!(); //~ ERROR: custom attributes cannot be applied to expressions
+}
+
+fn main() {
+ let _x: m!(u32) = 3; //~ ERROR: procedural macros cannot be expanded to types
+ if let m!(Some(_x)) = Some(3) {} //~ ERROR: procedural macros cannot be expanded to patterns
+
+ m!(struct S;); //~ ERROR: procedural macros cannot be expanded to statements
+ m!(let _x = 3;); //~ ERROR: procedural macros cannot be expanded to statements
+
+ let _x = m!(3); //~ ERROR: procedural macros cannot be expanded to expressions
+ let _x = [m!(3)]; //~ ERROR: procedural macros cannot be expanded to expressions
}