Bless

Author: BoxyUwU

tests/ui/consts/const-fn-in-vec.rs

@@ -1,11 +1,16 @@
 static _MAYBE_STRINGS: [Option<String>; 5] = [None; 5];
 //~^ ERROR the trait bound `String: Copy` is not satisfied
 
-fn main() {
-    // should hint to create an inline `const` block
-    // or to create a new `const` item
+// should hint to create an inline `const` block
+// or to create a new `const` item
+fn foo() {
     let _strings: [String; 5] = [String::new(); 5];
     //~^ ERROR the trait bound `String: Copy` is not satisfied
+}
+
+fn bar() {
     let _maybe_strings: [Option<String>; 5] = [None; 5];
     //~^ ERROR the trait bound `String: Copy` is not satisfied
 }
+
+fn main() {}

tests/ui/consts/const-fn-in-vec.stderr

@@ -22,7 +22,7 @@ LL |     let _strings: [String; 5] = [String::new(); 5];
    = note: the `Copy` trait is required because this value will be copied for each element of the array
 
 error[E0277]: the trait bound `String: Copy` is not satisfied
-  --> $DIR/const-fn-in-vec.rs:9:48
+  --> $DIR/const-fn-in-vec.rs:12:48
    |
 LL |     let _maybe_strings: [Option<String>; 5] = [None; 5];
    |                                                ^^^^

tests/ui/repeat-expr/copy-inference-side-effects-are-lazy.gai.stderr

@@ -0,0 +1,17 @@
+error[E0282]: type annotations needed for `[Foo<_>; 2]`
+  --> $DIR/copy-inference-side-effects-are-lazy.rs:22:9
+   |
+LL |     let x = [Foo(PhantomData); 2];
+   |         ^
+LL |
+LL |     _ = extract(x).max(2);
+   |         ---------- type must be known at this point
+   |
+help: consider giving `x` an explicit type, where the type for type parameter `T` is specified
+   |
+LL |     let x: [Foo<T>; 2] = [Foo(PhantomData); 2];
+   |          +++++++++++++
+
+error: aborting due to 1 previous error
+
+For more information about this error, try `rustc --explain E0282`.

tests/ui/repeat-expr/infer-eager.rs renamed to tests/ui/repeat-expr/copy-inference-side-effects-are-lazy.rs

@@ -1,4 +1,7 @@
-//@ check-pass
+//@revisions: current gai
+//@[current] check-pass
+
+#![cfg_attr(gai, feature(generic_arg_infer))]
 
 use std::marker::PhantomData;
 
@@ -17,5 +20,6 @@ fn extract<T, const N: usize>(_: [Foo<T>; N]) -> T {
 
 fn main() {
     let x = [Foo(PhantomData); 2];
+    //[gai]~^ ERROR: type annotations needed
     _ = extract(x).max(2);
 }

tests/ui/repeat-expr/infer.rs renamed to tests/ui/repeat-expr/copy-inference-side-effects.rs

@@ -0,0 +1,6 @@
+//@ check-pass
+#![feature(generic_arg_infer)]
+
+fn main() {
+    let a: [_; 1] = [String::new(); _];
+}