entirely remove rustc_args_required_const attribute

5 files changed, 0 insertions, 127 deletions

diff --git a/src/test/ui/consts/const-eval/double_promotion.rs b/src/test/ui/consts/const-eval/double_promotion.rs
deleted file mode 100644
index 9ee2777a647..00000000000
--- a/src/test/ui/consts/const-eval/double_promotion.rs
+++ /dev/null
@@ -1,17 +0,0 @@
-// check-pass
-
-#![feature(rustc_attrs)]
-
-#[rustc_args_required_const(0)]
-pub const fn a(value: u8) -> u8 {
-    value
-}
-
-#[rustc_args_required_const(0)]
-pub fn b(_: u8) {
-    unimplemented!()
-}
-
-fn main() {
-    let _ = b(a(0));
-}
diff --git a/src/test/ui/invalid/invalid-rustc_args_required_const-arguments.rs b/src/test/ui/invalid/invalid-rustc_args_required_const-arguments.rs
deleted file mode 100644
index 99508baeb00..00000000000
--- a/src/test/ui/invalid/invalid-rustc_args_required_const-arguments.rs
+++ /dev/null
@@ -1,32 +0,0 @@
-#![feature(rustc_attrs)]
-
-#[rustc_args_required_const(0)] //~ ERROR index exceeds number of arguments
-fn foo1() {}
-
-#[rustc_args_required_const(1)] //~ ERROR index exceeds number of arguments
-fn foo2(_: u8) {}
-
-#[rustc_args_required_const(a)] //~ ERROR arguments should be non-negative integers
-fn foo4() {}
-
-#[rustc_args_required_const(1, a, 2, b)] //~ ERROR arguments should be non-negative integers
-fn foo5(_: u8, _: u8, _: u8) {}
-
-#[rustc_args_required_const(0)] //~ ERROR attribute should be applied to a function
-struct S;
-
-#[rustc_args_required_const(0usize)] //~ ERROR suffixed literals are not allowed in attributes
-fn foo6(_: u8) {}
-
-extern {
-    #[rustc_args_required_const(1)] //~ ERROR index exceeds number of arguments
-    fn foo7(_: u8);
-}
-
-#[rustc_args_required_const] //~ ERROR malformed `rustc_args_required_const` attribute
-fn bar1() {}
-
-#[rustc_args_required_const = 1] //~ ERROR malformed `rustc_args_required_const` attribute
-fn bar2() {}
-
-fn main() {}
diff --git a/src/test/ui/invalid/invalid-rustc_args_required_const-arguments.stderr b/src/test/ui/invalid/invalid-rustc_args_required_const-arguments.stderr
deleted file mode 100644
index 932344f0a33..00000000000
--- a/src/test/ui/invalid/invalid-rustc_args_required_const-arguments.stderr
+++ /dev/null
@@ -1,60 +0,0 @@
-error: suffixed literals are not allowed in attributes
-  --> $DIR/invalid-rustc_args_required_const-arguments.rs:18:29
-   |
-LL | #[rustc_args_required_const(0usize)]
-   |                             ^^^^^^
-   |
-   = help: instead of using a suffixed literal (`1u8`, `1.0f32`, etc.), use an unsuffixed version (`1`, `1.0`, etc.)
-
-error: malformed `rustc_args_required_const` attribute input
-  --> $DIR/invalid-rustc_args_required_const-arguments.rs:26:1
-   |
-LL | #[rustc_args_required_const]
-   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: must be of the form: `#[rustc_args_required_const(N)]`
-
-error: malformed `rustc_args_required_const` attribute input
-  --> $DIR/invalid-rustc_args_required_const-arguments.rs:29:1
-   |
-LL | #[rustc_args_required_const = 1]
-   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: must be of the form: `#[rustc_args_required_const(N)]`
-
-error: index exceeds number of arguments
-  --> $DIR/invalid-rustc_args_required_const-arguments.rs:3:29
-   |
-LL | #[rustc_args_required_const(0)]
-   |                             ^ there are only 0 arguments
-
-error: index exceeds number of arguments
-  --> $DIR/invalid-rustc_args_required_const-arguments.rs:6:29
-   |
-LL | #[rustc_args_required_const(1)]
-   |                             ^ there is only 1 argument
-
-error: arguments should be non-negative integers
-  --> $DIR/invalid-rustc_args_required_const-arguments.rs:9:29
-   |
-LL | #[rustc_args_required_const(a)]
-   |                             ^
-
-error: arguments should be non-negative integers
-  --> $DIR/invalid-rustc_args_required_const-arguments.rs:12:32
-   |
-LL | #[rustc_args_required_const(1, a, 2, b)]
-   |                                ^     ^
-
-error: attribute should be applied to a function
-  --> $DIR/invalid-rustc_args_required_const-arguments.rs:15:1
-   |
-LL | #[rustc_args_required_const(0)]
-   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
-LL | struct S;
-   | --------- not a function
-
-error: index exceeds number of arguments
-  --> $DIR/invalid-rustc_args_required_const-arguments.rs:22:33
-   |
-LL |     #[rustc_args_required_const(1)]
-   |                                 ^ there is only 1 argument
-
-error: aborting due to 9 previous errors
-
diff --git a/src/test/ui/rustc-args-required-const2.rs b/src/test/ui/rustc-args-required-const2.rs
deleted file mode 100644
index 06457bc5ca6..00000000000
--- a/src/test/ui/rustc-args-required-const2.rs
+++ /dev/null
@@ -1,10 +0,0 @@
-#![feature(rustc_attrs)]
-
-#[rustc_args_required_const(0)]
-fn foo(_a: i32) {
-}
-
-fn main() {
-    let a = foo; //~ ERROR: this function can only be invoked directly
-    a(2);
-}
diff --git a/src/test/ui/rustc-args-required-const2.stderr b/src/test/ui/rustc-args-required-const2.stderr
deleted file mode 100644
index a8906ad3bc5..00000000000
--- a/src/test/ui/rustc-args-required-const2.stderr
+++ /dev/null
@@ -1,8 +0,0 @@
-error: this function can only be invoked directly, not through a function pointer
-  --> $DIR/rustc-args-required-const2.rs:8:13
-   |
-LL |     let a = foo;
-   |             ^^^
-
-error: aborting due to previous error
-