test min_const_generics using revisions

rust-lang · Aug 7, 2020 · 644c894 · 644c894
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diff --git a/...onst-generics/defaults/wrong-order.stderr → ...generics/defaults/wrong-order.full.stderr b/...onst-generics/defaults/wrong-order.stderr → ...generics/defaults/wrong-order.full.stderr
@@ -1,16 +1,16 @@
 error: type parameters with a default must be trailing
-  --> $DIR/wrong-order.rs:3:10
+  --> $DIR/wrong-order.rs:5:10
    |
 LL | struct A<T = u32, const N: usize> {
    |          ^
    |
    = note: using type defaults and const parameters in the same parameter list is currently not permitted
 
 warning: the feature `const_generics` is incomplete and may not be safe to use and/or cause compiler crashes
-  --> $DIR/wrong-order.rs:1:12
+  --> $DIR/wrong-order.rs:2:27
    |
-LL | #![feature(const_generics)]
-   |            ^^^^^^^^^^^^^^
+LL | #![cfg_attr(full, feature(const_generics))]
+   |                           ^^^^^^^^^^^^^^
    |
    = note: `#[warn(incomplete_features)]` on by default
    = note: see issue #44580 <https://github.com/rust-lang/rust/issues/44580> for more information

diff --git a/src/test/ui/const-generics/defaults/wrong-order.min.stderr b/src/test/ui/const-generics/defaults/wrong-order.min.stderr
@@ -0,0 +1,10 @@
+error: type parameters with a default must be trailing
+  --> $DIR/wrong-order.rs:5:10
+   |
+LL | struct A<T = u32, const N: usize> {
+   |          ^
+   |
+   = note: using type defaults and const parameters in the same parameter list is currently not permitted
+
+error: aborting due to previous error
+
diff --git a/src/test/ui/const-generics/defaults/wrong-order.rs b/src/test/ui/const-generics/defaults/wrong-order.rs
@@ -1,4 +1,6 @@
-#![feature(const_generics)] //~ WARN the feature `const_generics` is incomplete
+// revisions: full min
+#![cfg_attr(full, feature(const_generics))] //[full]~WARN the feature `const_generics` is incomplete
+#![cfg_attr(min, feature(min_const_generics))]
 
 struct A<T = u32, const N: usize> {
     //~^ ERROR type parameters with a default must be trailing

diff --git a/.../const-generics/issues/issue-56445.stderr → ...t-generics/issues/issue-56445.full.stderr b/.../const-generics/issues/issue-56445.stderr → ...t-generics/issues/issue-56445.full.stderr
@@ -1,8 +1,8 @@
 warning: the feature `const_generics` is incomplete and may not be safe to use and/or cause compiler crashes
-  --> $DIR/issue-56445.rs:3:12
+  --> $DIR/issue-56445.rs:3:27
    |
-LL | #![feature(const_generics)]
-   |            ^^^^^^^^^^^^^^
+LL | #![cfg_attr(full, feature(const_generics))]
+   |                           ^^^^^^^^^^^^^^
    |
    = note: `#[warn(incomplete_features)]` on by default
    = note: see issue #44580 <https://github.com/rust-lang/rust/issues/44580> for more information

diff --git a/src/test/ui/const-generics/issues/issue-56445.min.stderr b/src/test/ui/const-generics/issues/issue-56445.min.stderr
@@ -0,0 +1,20 @@
+error[E0771]: use of non-static lifetime `'a` in const generic
+  --> $DIR/issue-56445.rs:9:26
+   |
+LL | struct Bug<'a, const S: &'a str>(PhantomData<&'a ()>);
+   |                          ^^
+   |
+   = note: for more information, see issue #74052 <https://github.com/rust-lang/rust/issues/74052>
+
+error: using `&'static str` as const generic parameters is forbidden
+  --> $DIR/issue-56445.rs:9:25
+   |
+LL | struct Bug<'a, const S: &'a str>(PhantomData<&'a ()>);
+   |                         ^^^^^^^
+   |
+   = note: the only supported types are integers, `bool` and `char`
+   = note: more complex types are supported with `#[feature(const_generics)]`
+
+error: aborting due to 2 previous errors
+
+For more information about this error, try `rustc --explain E0771`.
diff --git a/src/test/ui/const-generics/issues/issue-56445.rs b/src/test/ui/const-generics/issues/issue-56445.rs
@@ -1,12 +1,13 @@
 // Regression test for https://github.com/rust-lang/rust/issues/56445#issuecomment-518402995.
-
-#![feature(const_generics)]
-//~^ WARN: the feature `const_generics` is incomplete
+// revisions: full min
+#![cfg_attr(full, feature(const_generics))] //[full]~WARN the feature `const_generics` is incomplete
+#![cfg_attr(min, feature(min_const_generics))]
 #![crate_type = "lib"]
 
 use std::marker::PhantomData;
 
 struct Bug<'a, const S: &'a str>(PhantomData<&'a ()>);
 //~^ ERROR: use of non-static lifetime `'a` in const generic
+//[min]~| ERROR: using `&'static str` as const
 
 impl Bug<'_, ""> {}
diff --git a/...onst-generics/issues/issue-61336-1.stderr → ...sue-60818-struct-constructors.full.stderr b/...onst-generics/issues/issue-61336-1.stderr → ...sue-60818-struct-constructors.full.stderr
@@ -1,8 +1,8 @@
 warning: the feature `const_generics` is incomplete and may not be safe to use and/or cause compiler crashes
-  --> $DIR/issue-61336-1.rs:1:12
+  --> $DIR/issue-60818-struct-constructors.rs:3:27
    |
-LL | #![feature(const_generics)]
-   |            ^^^^^^^^^^^^^^
+LL | #![cfg_attr(full, feature(const_generics))]
+   |                           ^^^^^^^^^^^^^^
    |
    = note: `#[warn(incomplete_features)]` on by default
    = note: see issue #44580 <https://github.com/rust-lang/rust/issues/44580> for more information

diff --git a/src/test/ui/const-generics/issues/issue-60818-struct-constructors.rs b/src/test/ui/const-generics/issues/issue-60818-struct-constructors.rs
@@ -1,7 +1,7 @@
 // check-pass
-
-#![feature(const_generics)]
-//~^ WARN the feature `const_generics` is incomplete
+// revisions: full min
+#![cfg_attr(full, feature(const_generics))] //[full]~WARN the feature `const_generics` is incomplete
+#![cfg_attr(min, feature(min_const_generics))]
 
 struct Generic<const V: usize>;
 

diff --git a/...es/issue-60818-struct-constructors.stderr → ...generics/issues/issue-61336-1.full.stderr b/...es/issue-60818-struct-constructors.stderr → ...generics/issues/issue-61336-1.full.stderr
@@ -1,8 +1,8 @@
 warning: the feature `const_generics` is incomplete and may not be safe to use and/or cause compiler crashes
-  --> $DIR/issue-60818-struct-constructors.rs:3:12
+  --> $DIR/issue-61336-1.rs:3:27
    |
-LL | #![feature(const_generics)]
-   |            ^^^^^^^^^^^^^^
+LL | #![cfg_attr(full, feature(const_generics))]
+   |                           ^^^^^^^^^^^^^^
    |
    = note: `#[warn(incomplete_features)]` on by default
    = note: see issue #44580 <https://github.com/rust-lang/rust/issues/44580> for more information

diff --git a/src/test/ui/const-generics/issues/issue-61336-1.rs b/src/test/ui/const-generics/issues/issue-61336-1.rs
@@ -1,7 +1,7 @@
-#![feature(const_generics)]
-//~^ WARN the feature `const_generics` is incomplete
-
 // build-pass
+// revisions: full min
+#![cfg_attr(full, feature(const_generics))] //[full]~WARN the feature `const_generics` is incomplete
+#![cfg_attr(min, feature(min_const_generics))]
 
 fn f<T: Copy, const N: usize>(x: T) -> [T; N] {
     [x; N]

diff --git a/...onst-generics/issues/issue-61336-2.stderr → ...generics/issues/issue-61336-2.full.stderr b/...onst-generics/issues/issue-61336-2.stderr → ...generics/issues/issue-61336-2.full.stderr
@@ -1,14 +1,14 @@
 warning: the feature `const_generics` is incomplete and may not be safe to use and/or cause compiler crashes
-  --> $DIR/issue-61336-2.rs:1:12
+  --> $DIR/issue-61336-2.rs:2:27
    |
-LL | #![feature(const_generics)]
-   |            ^^^^^^^^^^^^^^
+LL | #![cfg_attr(full, feature(const_generics))]
+   |                           ^^^^^^^^^^^^^^
    |
    = note: `#[warn(incomplete_features)]` on by default
    = note: see issue #44580 <https://github.com/rust-lang/rust/issues/44580> for more information
 
 error[E0277]: the trait bound `T: std::marker::Copy` is not satisfied
-  --> $DIR/issue-61336-2.rs:9:5
+  --> $DIR/issue-61336-2.rs:10:5
    |
 LL |     [x; { N }]
    |     ^^^^^^^^^^ the trait `std::marker::Copy` is not implemented for `T`

diff --git a/src/test/ui/const-generics/issues/issue-61336-2.min.stderr b/src/test/ui/const-generics/issues/issue-61336-2.min.stderr
@@ -0,0 +1,15 @@
+error[E0277]: the trait bound `T: std::marker::Copy` is not satisfied
+  --> $DIR/issue-61336-2.rs:10:5
+   |
+LL |     [x; { N }]
+   |     ^^^^^^^^^^ the trait `std::marker::Copy` is not implemented for `T`
+   |
+   = note: the `Copy` trait is required because the repeated element will be copied
+help: consider restricting type parameter `T`
+   |
+LL | fn g<T: std::marker::Copy, const N: usize>(x: T) -> [T; N] {
+   |       ^^^^^^^^^^^^^^^^^^^
+
+error: aborting due to previous error
+
+For more information about this error, try `rustc --explain E0277`.
diff --git a/src/test/ui/const-generics/issues/issue-61336-2.rs b/src/test/ui/const-generics/issues/issue-61336-2.rs
@@ -1,5 +1,6 @@
-#![feature(const_generics)]
-//~^ WARN the feature `const_generics` is incomplete
+// revisions: full min
+#![cfg_attr(full, feature(const_generics))] //[full]~WARN the feature `const_generics` is incomplete
+#![cfg_attr(min, feature(min_const_generics))]
 
 fn f<T: Copy, const N: usize>(x: T) -> [T; N] {
     [x; { N }]

diff --git a/src/test/ui/const-generics/issues/issue-61336.full.stderr b/src/test/ui/const-generics/issues/issue-61336.full.stderr
@@ -0,0 +1,24 @@
+warning: the feature `const_generics` is incomplete and may not be safe to use and/or cause compiler crashes
+  --> $DIR/issue-61336.rs:2:27
+   |
+LL | #![cfg_attr(full, feature(const_generics))]
+   |                           ^^^^^^^^^^^^^^
+   |
+   = note: `#[warn(incomplete_features)]` on by default
+   = note: see issue #44580 <https://github.com/rust-lang/rust/issues/44580> for more information
+
+error[E0277]: the trait bound `T: std::marker::Copy` is not satisfied
+  --> $DIR/issue-61336.rs:10:5
+   |
+LL |     [x; N]
+   |     ^^^^^^ the trait `std::marker::Copy` is not implemented for `T`
+   |
+   = note: the `Copy` trait is required because the repeated element will be copied
+help: consider restricting type parameter `T`
+   |
+LL | fn g<T: std::marker::Copy, const N: usize>(x: T) -> [T; N] {
+   |       ^^^^^^^^^^^^^^^^^^^
+
+error: aborting due to previous error; 1 warning emitted
+
+For more information about this error, try `rustc --explain E0277`.
diff --git a/src/test/ui/const-generics/issues/issue-61336.min.stderr b/src/test/ui/const-generics/issues/issue-61336.min.stderr
@@ -0,0 +1,15 @@
+error[E0277]: the trait bound `T: std::marker::Copy` is not satisfied
+  --> $DIR/issue-61336.rs:10:5
+   |
+LL |     [x; N]
+   |     ^^^^^^ the trait `std::marker::Copy` is not implemented for `T`
+   |
+   = note: the `Copy` trait is required because the repeated element will be copied
+help: consider restricting type parameter `T`
+   |
+LL | fn g<T: std::marker::Copy, const N: usize>(x: T) -> [T; N] {
+   |       ^^^^^^^^^^^^^^^^^^^
+
+error: aborting due to previous error
+
+For more information about this error, try `rustc --explain E0277`.
diff --git a/src/test/ui/const-generics/issues/issue-61336.rs b/src/test/ui/const-generics/issues/issue-61336.rs
@@ -1,5 +1,6 @@
-#![feature(const_generics)]
-//~^ WARN the feature `const_generics` is incomplete
+// revisions: full min
+#![cfg_attr(full, feature(const_generics))] //[full]~WARN the feature `const_generics` is incomplete
+#![cfg_attr(min, feature(min_const_generics))]
 
 fn f<T: Copy, const N: usize>(x: T) -> [T; N] {
     [x; N]

diff --git a/.../const-generics/issues/issue-61432.stderr → ...t-generics/issues/issue-61422.full.stderr b/.../const-generics/issues/issue-61432.stderr → ...t-generics/issues/issue-61422.full.stderr
@@ -1,8 +1,8 @@
 warning: the feature `const_generics` is incomplete and may not be safe to use and/or cause compiler crashes
-  --> $DIR/issue-61432.rs:3:12
+  --> $DIR/issue-61422.rs:3:27
    |
-LL | #![feature(const_generics)]
-   |            ^^^^^^^^^^^^^^
+LL | #![cfg_attr(full, feature(const_generics))]
+   |                           ^^^^^^^^^^^^^^
    |
    = note: `#[warn(incomplete_features)]` on by default
    = note: see issue #44580 <https://github.com/rust-lang/rust/issues/44580> for more information

diff --git a/src/test/ui/const-generics/issues/issue-61422.rs b/src/test/ui/const-generics/issues/issue-61422.rs
@@ -1,7 +1,7 @@
 // check-pass
-
-#![feature(const_generics)]
-//~^ WARN the feature `const_generics` is incomplete
+// revisions: full min
+#![cfg_attr(full, feature(const_generics))] //[full]~WARN the feature `const_generics` is incomplete
+#![cfg_attr(min, feature(min_const_generics))]
 
 use std::mem;
 

diff --git a/.../const-generics/issues/issue-61422.stderr → ...t-generics/issues/issue-61432.full.stderr b/.../const-generics/issues/issue-61422.stderr → ...t-generics/issues/issue-61432.full.stderr
@@ -1,8 +1,8 @@
 warning: the feature `const_generics` is incomplete and may not be safe to use and/or cause compiler crashes
-  --> $DIR/issue-61422.rs:3:12
+  --> $DIR/issue-61432.rs:3:27
    |
-LL | #![feature(const_generics)]
-   |            ^^^^^^^^^^^^^^
+LL | #![cfg_attr(full, feature(const_generics))]
+   |                           ^^^^^^^^^^^^^^
    |
    = note: `#[warn(incomplete_features)]` on by default
    = note: see issue #44580 <https://github.com/rust-lang/rust/issues/44580> for more information

diff --git a/src/test/ui/const-generics/issues/issue-61432.rs b/src/test/ui/const-generics/issues/issue-61432.rs
@@ -1,7 +1,7 @@
 // run-pass
-
-#![feature(const_generics)]
-//~^ WARN the feature `const_generics` is incomplete
+// revisions: full min
+#![cfg_attr(full, feature(const_generics))] //[full]~WARN the feature `const_generics` is incomplete
+#![cfg_attr(min, feature(min_const_generics))]
 
 fn promote<const N: i32>() {
     // works:

diff --git a/.../const-generics/issues/issue-61747.stderr → ...t-generics/issues/issue-61747.full.stderr b/.../const-generics/issues/issue-61747.stderr → ...t-generics/issues/issue-61747.full.stderr
@@ -1,14 +1,14 @@
 warning: the feature `const_generics` is incomplete and may not be safe to use and/or cause compiler crashes
-  --> $DIR/issue-61747.rs:1:12
+  --> $DIR/issue-61747.rs:2:27
    |
-LL | #![feature(const_generics)]
-   |            ^^^^^^^^^^^^^^
+LL | #![cfg_attr(full, feature(const_generics))]
+   |                           ^^^^^^^^^^^^^^
    |
    = note: `#[warn(incomplete_features)]` on by default
    = note: see issue #44580 <https://github.com/rust-lang/rust/issues/44580> for more information
 
 error: constant expression depends on a generic parameter
-  --> $DIR/issue-61747.rs:7:23
+  --> $DIR/issue-61747.rs:8:23
    |
 LL |     fn successor() -> Const<{C + 1}> {
    |                       ^^^^^^^^^^^^^^

diff --git a/src/test/ui/const-generics/issues/issue-61747.min.stderr b/src/test/ui/const-generics/issues/issue-61747.min.stderr
@@ -0,0 +1,10 @@
+error: generic parameters must not be used inside of non trivial constant values
+  --> $DIR/issue-61747.rs:8:30
+   |
+LL |     fn successor() -> Const<{C + 1}> {
+   |                              ^ non-trivial anonymous constants must not depend on the parameter `C`
+   |
+   = help: it is currently only allowed to use either `C` or `{ C }` as generic constants
+
+error: aborting due to previous error
+
diff --git a/src/test/ui/const-generics/issues/issue-61747.rs b/src/test/ui/const-generics/issues/issue-61747.rs
@@ -1,11 +1,13 @@
-#![feature(const_generics)]
-//~^ WARN the feature `const_generics` is incomplete
+// revisions: full min
+#![cfg_attr(full, feature(const_generics))] //[full]~WARN the feature `const_generics` is incomplete
+#![cfg_attr(min, feature(min_const_generics))]
 
 struct Const<const N: usize>;
 
 impl<const C: usize> Const<{C}> {
     fn successor() -> Const<{C + 1}> {
-        //~^ ERROR constant expression depends on a generic parameter
+        //[full]~^ ERROR constant expression depends on a generic parameter
+        //[min]~^^ ERROR generic parameters must not be used
         Const
     }
 }

diff --git a/src/test/ui/const-generics/type-dependent/const-arg-in-const-arg.rs b/src/test/ui/const-generics/type-dependent/const-arg-in-const-arg.rs
@@ -1,7 +1,8 @@
 // run-pass
-#![feature(const_generics)]
+// revisions: full min
+#![cfg_attr(full, feature(const_generics))]
+#![cfg_attr(min, feature(min_const_generics))]
 #![allow(incomplete_features)]
-#![feature(const_fn)]
 
 struct Foo;