Rollup merge of #78070 - RalfJung:const-panic-test, r=oli-obk

we can test std and core panic macros together

r? @oli-obk

src/test/ui/consts/const-eval/const_panic.rs

@@ -1,11 +1,26 @@
 #![feature(const_panic)]
 #![crate_type = "lib"]
 
-pub const Z: () = panic!("cheese");
+const Z: () = std::panic!("cheese");
 //~^ ERROR any use of this value will cause an error
 
-pub const Y: () = unreachable!();
+const Z2: () = std::panic!();
 //~^ ERROR any use of this value will cause an error
 
-pub const X: () = unimplemented!();
+const Y: () = std::unreachable!();
+//~^ ERROR any use of this value will cause an error
+
+const X: () = std::unimplemented!();
+//~^ ERROR any use of this value will cause an error
+
+const Z_CORE: () = core::panic!("cheese");
+//~^ ERROR any use of this value will cause an error
+
+const Z2_CORE: () = core::panic!();
+//~^ ERROR any use of this value will cause an error
+
+const Y_CORE: () = core::unreachable!();
+//~^ ERROR any use of this value will cause an error
+
+const X_CORE: () = core::unimplemented!();
 //~^ ERROR any use of this value will cause an error

src/test/ui/consts/const-eval/const_panic.stderr

@@ -1,33 +1,83 @@
 error: any use of this value will cause an error
-  --> $DIR/const_panic.rs:4:19
+  --> $DIR/const_panic.rs:4:15
    |
-LL | pub const Z: () = panic!("cheese");
+LL | const Z: () = std::panic!("cheese");
-   | ------------------^^^^^^^^^^^^^^^^-
+   | --------------^^^^^^^^^^^^^^^^^^^^^-
-   |                   |
+   |               |
-   |                   the evaluated program panicked at 'cheese', $DIR/const_panic.rs:4:19
+   |               the evaluated program panicked at 'cheese', $DIR/const_panic.rs:4:15
    |
    = note: `#[deny(const_err)]` on by default
    = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: any use of this value will cause an error
-  --> $DIR/const_panic.rs:7:19
+  --> $DIR/const_panic.rs:7:16
    |
-LL | pub const Y: () = unreachable!();
+LL | const Z2: () = std::panic!();
-   | ------------------^^^^^^^^^^^^^^-
+   | ---------------^^^^^^^^^^^^^-
-   |                   |
+   |                |
-   |                   the evaluated program panicked at 'internal error: entered unreachable code', $DIR/const_panic.rs:7:19
+   |                the evaluated program panicked at 'explicit panic', $DIR/const_panic.rs:7:16
    |
    = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: any use of this value will cause an error
-  --> $DIR/const_panic.rs:10:19
+  --> $DIR/const_panic.rs:10:15
    |
-LL | pub const X: () = unimplemented!();
+LL | const Y: () = std::unreachable!();
-   | ------------------^^^^^^^^^^^^^^^^-
+   | --------------^^^^^^^^^^^^^^^^^^^-
-   |                   |
+   |               |
-   |                   the evaluated program panicked at 'not implemented', $DIR/const_panic.rs:10:19
+   |               the evaluated program panicked at 'internal error: entered unreachable code', $DIR/const_panic.rs:10:15
    |
    = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
-error: aborting due to 3 previous errors
+error: any use of this value will cause an error
+  --> $DIR/const_panic.rs:13:15
+   |
+LL | const X: () = std::unimplemented!();
+   | --------------^^^^^^^^^^^^^^^^^^^^^-
+   |               |
+   |               the evaluated program panicked at 'not implemented', $DIR/const_panic.rs:13:15
+   |
+   = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
+
+error: any use of this value will cause an error
+  --> $DIR/const_panic.rs:16:20
+   |
+LL | const Z_CORE: () = core::panic!("cheese");
+   | -------------------^^^^^^^^^^^^^^^^^^^^^^-
+   |                    |
+   |                    the evaluated program panicked at 'cheese', $DIR/const_panic.rs:16:20
+   |
+   = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
+
+error: any use of this value will cause an error
+  --> $DIR/const_panic.rs:19:21
+   |
+LL | const Z2_CORE: () = core::panic!();
+   | --------------------^^^^^^^^^^^^^^-
+   |                     |
+   |                     the evaluated program panicked at 'explicit panic', $DIR/const_panic.rs:19:21
+   |
+   = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
+
+error: any use of this value will cause an error
+  --> $DIR/const_panic.rs:22:20
+   |
+LL | const Y_CORE: () = core::unreachable!();
+   | -------------------^^^^^^^^^^^^^^^^^^^^-
+   |                    |
+   |                    the evaluated program panicked at 'internal error: entered unreachable code', $DIR/const_panic.rs:22:20
+   |
+   = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
+
+error: any use of this value will cause an error
+  --> $DIR/const_panic.rs:25:20
+   |
+LL | const X_CORE: () = core::unimplemented!();
+   | -------------------^^^^^^^^^^^^^^^^^^^^^^-
+   |                    |
+   |                    the evaluated program panicked at 'not implemented', $DIR/const_panic.rs:25:20
+   |
+   = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
+
+error: aborting due to 8 previous errors
 

src/test/ui/consts/const-eval/const_panic_libcore.rs

@@ -1,12 +0,0 @@
-#![no_std]
-#![crate_type = "lib"]
-#![feature(const_panic)]
-
-const Z: () = panic!("cheese");
-//~^ ERROR any use of this value will cause an error
-
-const Y: () = unreachable!();
-//~^ ERROR any use of this value will cause an error
-
-const X: () = unimplemented!();
-//~^ ERROR any use of this value will cause an error

src/test/ui/consts/const-eval/const_panic_libcore_bin.stderr

@@ -1,31 +1,31 @@
 error: any use of this value will cause an error
-  --> $DIR/const_panic_libcore.rs:5:15
+  --> $DIR/const_panic_libcore_bin.rs:9:15
    |
 LL | const Z: () = panic!("cheese");
    | --------------^^^^^^^^^^^^^^^^-
    |               |
-   |               the evaluated program panicked at 'cheese', $DIR/const_panic_libcore.rs:5:15
+   |               the evaluated program panicked at 'cheese', $DIR/const_panic_libcore_bin.rs:9:15
    |
    = note: `#[deny(const_err)]` on by default
    = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: any use of this value will cause an error
-  --> $DIR/const_panic_libcore.rs:8:15
+  --> $DIR/const_panic_libcore_bin.rs:12:15
    |
 LL | const Y: () = unreachable!();
    | --------------^^^^^^^^^^^^^^-
    |               |
-   |               the evaluated program panicked at 'internal error: entered unreachable code', $DIR/const_panic_libcore.rs:8:15
+   |               the evaluated program panicked at 'internal error: entered unreachable code', $DIR/const_panic_libcore_bin.rs:12:15
    |
    = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
 
 error: any use of this value will cause an error
-  --> $DIR/const_panic_libcore.rs:11:15
+  --> $DIR/const_panic_libcore_bin.rs:15:15
    |
 LL | const X: () = unimplemented!();
    | --------------^^^^^^^^^^^^^^^^-
    |               |
-   |               the evaluated program panicked at 'not implemented', $DIR/const_panic_libcore.rs:11:15
+   |               the evaluated program panicked at 'not implemented', $DIR/const_panic_libcore_bin.rs:15:15
    |
    = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
 

src/test/ui/consts/const-eval/const_panic_libcore_main.stderr

@@ -1,33 +0,0 @@
-error: any use of this value will cause an error
-  --> $DIR/const_panic_libcore_main.rs:9:15
-   |
-LL | const Z: () = panic!("cheese");
-   | --------------^^^^^^^^^^^^^^^^-
-   |               |
-   |               the evaluated program panicked at 'cheese', $DIR/const_panic_libcore_main.rs:9:15
-   |
-   = note: `#[deny(const_err)]` on by default
-   = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
-
-error: any use of this value will cause an error
-  --> $DIR/const_panic_libcore_main.rs:12:15
-   |
-LL | const Y: () = unreachable!();
-   | --------------^^^^^^^^^^^^^^-
-   |               |
-   |               the evaluated program panicked at 'internal error: entered unreachable code', $DIR/const_panic_libcore_main.rs:12:15
-   |
-   = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
-
-error: any use of this value will cause an error
-  --> $DIR/const_panic_libcore_main.rs:15:15
-   |
-LL | const X: () = unimplemented!();
-   | --------------^^^^^^^^^^^^^^^^-
-   |               |
-   |               the evaluated program panicked at 'not implemented', $DIR/const_panic_libcore_main.rs:15:15
-   |
-   = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
-
-error: aborting due to 3 previous errors
-