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rust-lang · Feb 12, 2022 · 88d433e · 88d433e
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Showing 9 changed files with 41 additions and 3 deletions.
diff --git a/src/test/ui/const-generics/issue-93647.rs b/src/test/ui/const-generics/issue-93647.rs
@@ -1,6 +1,6 @@
 struct X<const N: usize = {
     (||1usize)()
-    //~^ ERROR calls in constants are limited to
+    //~^ ERROR cannot call
 }>;
 
 fn main() {}
diff --git a/src/test/ui/const-generics/issue-93647.stderr b/src/test/ui/const-generics/issue-93647.stderr
@@ -1,8 +1,11 @@
-error[E0015]: calls in constants are limited to constant functions, tuple structs and tuple variants
+error[E0015]: cannot call non-const closure in constants
   --> $DIR/issue-93647.rs:2:5
    |
 LL |     (||1usize)()
    |     ^^^^^^^^^^^^
+   |
+   = note: closures need an RFC before allowed to be called in constants
+   = note: calls in constants are limited to constant functions, tuple structs and tuple variants
 
 error: aborting due to previous error
 

diff --git a/src/test/ui/consts/const-fn-error.rs b/src/test/ui/consts/const-fn-error.rs
@@ -6,7 +6,6 @@ const fn f(x: usize) -> usize {
         //~^ ERROR mutable references
         //~| ERROR cannot convert
         //~| ERROR cannot call non-const fn
-        //~| ERROR E0080
         //~| ERROR `for` is not allowed in a `const fn`
         sum += i;
     }

diff --git a/src/test/ui/rfc-2632-const-trait-impl/call-const-trait-method-fail.stderr b/src/test/ui/rfc-2632-const-trait-impl/call-const-trait-method-fail.stderr
@@ -3,6 +3,12 @@ error[E0277]: the trait bound `u32: ~const Plus` is not satisfied
    |
 LL |     a.plus(b)
    |       ^^^^^^^ the trait `~const Plus` is not implemented for `u32`
+   |
+note: the trait `Plus` is implemented for `u32`, but that implementation is not `const`
+  --> $DIR/call-const-trait-method-fail.rs:24:7
+   |
+LL |     a.plus(b)
+   |       ^^^^^^^
 
 error[E0015]: cannot call non-const fn `<u32 as Plus>::plus` in constant functions
   --> $DIR/call-const-trait-method-fail.rs:24:7

diff --git a/src/test/ui/rfc-2632-const-trait-impl/call-generic-method-fail.stderr b/src/test/ui/rfc-2632-const-trait-impl/call-generic-method-fail.stderr
@@ -3,6 +3,12 @@ error[E0277]: can't compare `T` with `T` in const contexts
    |
 LL |     *t == *t
    |     ^^^^^^^^ no implementation for `T == T`
+   |
+note: the trait `PartialEq` is implemented for `T`, but that implementation is not `const`
+  --> $DIR/call-generic-method-fail.rs:5:5
+   |
+LL |     *t == *t
+   |     ^^^^^^^^
 
 error[E0015]: cannot call non-const operator in constant functions
   --> $DIR/call-generic-method-fail.rs:5:5

diff --git a/src/test/ui/rfc-2632-const-trait-impl/const-default-method-bodies.stderr b/src/test/ui/rfc-2632-const-trait-impl/const-default-method-bodies.stderr
@@ -3,6 +3,12 @@ error[E0277]: the trait bound `NonConstImpl: ~const ConstDefaultFn` is not satis
    |
 LL |     NonConstImpl.a();
    |                  ^^^ the trait `~const ConstDefaultFn` is not implemented for `NonConstImpl`
+   |
+note: the trait `ConstDefaultFn` is implemented for `NonConstImpl`, but that implementation is not `const`
+  --> $DIR/const-default-method-bodies.rs:25:18
+   |
+LL |     NonConstImpl.a();
+   |                  ^^^
 
 error[E0015]: cannot call non-const fn `<NonConstImpl as ConstDefaultFn>::a` in constant functions
   --> $DIR/const-default-method-bodies.rs:25:18

diff --git a/src/test/ui/rfc-2632-const-trait-impl/cross-crate.gated.stderr b/src/test/ui/rfc-2632-const-trait-impl/cross-crate.gated.stderr
@@ -3,6 +3,12 @@ error[E0277]: the trait bound `cross_crate::NonConst: ~const cross_crate::MyTrai
    |
 LL |     NonConst.func();
    |              ^^^^^^ the trait `~const cross_crate::MyTrait` is not implemented for `cross_crate::NonConst`
+   |
+note: the trait `cross_crate::MyTrait` is implemented for `cross_crate::NonConst`, but that implementation is not `const`
+  --> $DIR/cross-crate.rs:15:14
+   |
+LL |     NonConst.func();
+   |              ^^^^^^
 
 error[E0015]: cannot call non-const fn `<cross_crate::NonConst as cross_crate::MyTrait>::func` in constant functions
   --> $DIR/cross-crate.rs:15:14

diff --git a/src/test/ui/rfc-2632-const-trait-impl/default-method-body-is-const-same-trait-ck.stderr b/src/test/ui/rfc-2632-const-trait-impl/default-method-body-is-const-same-trait-ck.stderr
@@ -3,6 +3,12 @@ error[E0277]: the trait bound `(): ~const Tr` is not satisfied
    |
 LL |         ().a()
    |            ^^^ the trait `~const Tr` is not implemented for `()`
+   |
+note: the trait `Tr` is implemented for `()`, but that implementation is not `const`
+  --> $DIR/default-method-body-is-const-same-trait-ck.rs:10:12
+   |
+LL |         ().a()
+   |            ^^^
 
 error[E0015]: cannot call non-const fn `<() as Tr>::a` in constant functions
   --> $DIR/default-method-body-is-const-same-trait-ck.rs:10:12

diff --git a/src/test/ui/rfc-2632-const-trait-impl/issue-88155.stderr b/src/test/ui/rfc-2632-const-trait-impl/issue-88155.stderr
@@ -3,6 +3,12 @@ error[E0277]: the trait bound `T: ~const A` is not satisfied
    |
 LL |     T::assoc()
    |     ^^^^^^^^^^ the trait `~const A` is not implemented for `T`
+   |
+note: the trait `A` is implemented for `T`, but that implementation is not `const`
+  --> $DIR/issue-88155.rs:9:5
+   |
+LL |     T::assoc()
+   |     ^^^^^^^^^^
 
 error[E0015]: cannot call non-const fn `<T as A>::assoc` in constant functions
   --> $DIR/issue-88155.rs:9:5