Add tests for "not sure" case of cfg_accessible

src/test/ui/conditional-compilation/cfg_accessible-not_sure.edition2015.stderr

@@ -0,0 +1,106 @@
+error: not sure whether the path is accessible or not
+  --> $DIR/cfg_accessible-not_sure.rs:14:18
+   |
+LL | #[cfg_accessible(Struct::existing)]
+   |                  ^^^^^^^^^^^^^^^^
+   |
+   = note: the type may have associated items, but we are currently not checking them
+
+error: not sure whether the path is accessible or not
+  --> $DIR/cfg_accessible-not_sure.rs:16:18
+   |
+LL | #[cfg_accessible(Struct::unresolved)]
+   |                  ^^^^^^^^^^^^^^^^^^
+   |
+   = note: the type may have associated items, but we are currently not checking them
+
+error: not sure whether the path is accessible or not
+  --> $DIR/cfg_accessible-not_sure.rs:25:18
+   |
+LL | #[cfg_accessible(Union::existing)]
+   |                  ^^^^^^^^^^^^^^^
+   |
+   = note: the type may have associated items, but we are currently not checking them
+
+error: not sure whether the path is accessible or not
+  --> $DIR/cfg_accessible-not_sure.rs:27:18
+   |
+LL | #[cfg_accessible(Union::unresolved)]
+   |                  ^^^^^^^^^^^^^^^^^
+   |
+   = note: the type may have associated items, but we are currently not checking them
+
+error: not sure whether the path is accessible or not
+  --> $DIR/cfg_accessible-not_sure.rs:36:18
+   |
+LL | #[cfg_accessible(Enum::unresolved)]
+   |                  ^^^^^^^^^^^^^^^^
+   |
+   = note: the type may have associated items, but we are currently not checking them
+
+error: not sure whether the path is accessible or not
+  --> $DIR/cfg_accessible-not_sure.rs:46:18
+   |
+LL | #[cfg_accessible(Trait::existing)]
+   |                  ^^^^^^^^^^^^^^^
+   |
+   = note: the type may have associated items, but we are currently not checking them
+
+error: not sure whether the path is accessible or not
+  --> $DIR/cfg_accessible-not_sure.rs:48:18
+   |
+LL | #[cfg_accessible(Trait::unresolved)]
+   |                  ^^^^^^^^^^^^^^^^^
+   |
+   = note: the type may have associated items, but we are currently not checking them
+
+error: not sure whether the path is accessible or not
+  --> $DIR/cfg_accessible-not_sure.rs:55:18
+   |
+LL | #[cfg_accessible(TypeAlias::existing)]
+   |                  ^^^^^^^^^^^^^^^^^^^
+   |
+   = note: the type may have associated items, but we are currently not checking them
+
+error: not sure whether the path is accessible or not
+  --> $DIR/cfg_accessible-not_sure.rs:57:18
+   |
+LL | #[cfg_accessible(TypeAlias::unresolved)]
+   |                  ^^^^^^^^^^^^^^^^^^^^^
+   |
+   = note: the type may have associated items, but we are currently not checking them
+
+error: not sure whether the path is accessible or not
+  --> $DIR/cfg_accessible-not_sure.rs:66:18
+   |
+LL | #[cfg_accessible(ForeignType::unresolved)]
+   |                  ^^^^^^^^^^^^^^^^^^^^^^^
+   |
+   = note: the type may have associated items, but we are currently not checking them
+
+error: not sure whether the path is accessible or not
+  --> $DIR/cfg_accessible-not_sure.rs:75:18
+   |
+LL | #[cfg_accessible(AssocType::AssocType::unresolved)]
+   |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+   |
+   = note: the type may have associated items, but we are currently not checking them
+
+error: not sure whether the path is accessible or not
+  --> $DIR/cfg_accessible-not_sure.rs:80:18
+   |
+LL | #[cfg_accessible(u8::unresolved)]
+   |                  ^^^^^^^^^^^^^^
+   |
+   = note: the type may have associated items, but we are currently not checking them
+
+error: not sure whether the path is accessible or not
+  --> $DIR/cfg_accessible-not_sure.rs:82:18
+   |
+LL | #[cfg_accessible(u8::is_ascii)]
+   |                  ^^^^^^^^^^^^
+   |
+   = note: the type may have associated items, but we are currently not checking them
+
+error: aborting due to 13 previous errors
+

src/test/ui/conditional-compilation/cfg_accessible-not_sure.edition2021.stderr

@@ -0,0 +1,106 @@
+error: not sure whether the path is accessible or not
+  --> $DIR/cfg_accessible-not_sure.rs:14:18
+   |
+LL | #[cfg_accessible(Struct::existing)]
+   |                  ^^^^^^^^^^^^^^^^
+   |
+   = note: the type may have associated items, but we are currently not checking them
+
+error: not sure whether the path is accessible or not
+  --> $DIR/cfg_accessible-not_sure.rs:16:18
+   |
+LL | #[cfg_accessible(Struct::unresolved)]
+   |                  ^^^^^^^^^^^^^^^^^^
+   |
+   = note: the type may have associated items, but we are currently not checking them
+
+error: not sure whether the path is accessible or not
+  --> $DIR/cfg_accessible-not_sure.rs:25:18
+   |
+LL | #[cfg_accessible(Union::existing)]
+   |                  ^^^^^^^^^^^^^^^
+   |
+   = note: the type may have associated items, but we are currently not checking them
+
+error: not sure whether the path is accessible or not
+  --> $DIR/cfg_accessible-not_sure.rs:27:18
+   |
+LL | #[cfg_accessible(Union::unresolved)]
+   |                  ^^^^^^^^^^^^^^^^^
+   |
+   = note: the type may have associated items, but we are currently not checking them
+
+error: not sure whether the path is accessible or not
+  --> $DIR/cfg_accessible-not_sure.rs:36:18
+   |
+LL | #[cfg_accessible(Enum::unresolved)]
+   |                  ^^^^^^^^^^^^^^^^
+   |
+   = note: the type may have associated items, but we are currently not checking them
+
+error: not sure whether the path is accessible or not
+  --> $DIR/cfg_accessible-not_sure.rs:46:18
+   |
+LL | #[cfg_accessible(Trait::existing)]
+   |                  ^^^^^^^^^^^^^^^
+   |
+   = note: the type may have associated items, but we are currently not checking them
+
+error: not sure whether the path is accessible or not
+  --> $DIR/cfg_accessible-not_sure.rs:48:18
+   |
+LL | #[cfg_accessible(Trait::unresolved)]
+   |                  ^^^^^^^^^^^^^^^^^
+   |
+   = note: the type may have associated items, but we are currently not checking them
+
+error: not sure whether the path is accessible or not
+  --> $DIR/cfg_accessible-not_sure.rs:55:18
+   |
+LL | #[cfg_accessible(TypeAlias::existing)]
+   |                  ^^^^^^^^^^^^^^^^^^^
+   |
+   = note: the type may have associated items, but we are currently not checking them
+
+error: not sure whether the path is accessible or not
+  --> $DIR/cfg_accessible-not_sure.rs:57:18
+   |
+LL | #[cfg_accessible(TypeAlias::unresolved)]
+   |                  ^^^^^^^^^^^^^^^^^^^^^
+   |
+   = note: the type may have associated items, but we are currently not checking them
+
+error: not sure whether the path is accessible or not
+  --> $DIR/cfg_accessible-not_sure.rs:66:18
+   |
+LL | #[cfg_accessible(ForeignType::unresolved)]
+   |                  ^^^^^^^^^^^^^^^^^^^^^^^
+   |
+   = note: the type may have associated items, but we are currently not checking them
+
+error: not sure whether the path is accessible or not
+  --> $DIR/cfg_accessible-not_sure.rs:75:18
+   |
+LL | #[cfg_accessible(AssocType::AssocType::unresolved)]
+   |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+   |
+   = note: the type may have associated items, but we are currently not checking them
+
+error: not sure whether the path is accessible or not
+  --> $DIR/cfg_accessible-not_sure.rs:80:18
+   |
+LL | #[cfg_accessible(u8::unresolved)]
+   |                  ^^^^^^^^^^^^^^
+   |
+   = note: the type may have associated items, but we are currently not checking them
+
+error: not sure whether the path is accessible or not
+  --> $DIR/cfg_accessible-not_sure.rs:82:18
+   |
+LL | #[cfg_accessible(u8::is_ascii)]
+   |                  ^^^^^^^^^^^^
+   |
+   = note: the type may have associated items, but we are currently not checking them
+
+error: aborting due to 13 previous errors
+

src/test/ui/conditional-compilation/cfg_accessible-not_sure.rs

@@ -0,0 +1,91 @@
+// revisions: edition2015 edition2021
+// [edition2015]compile-flags: --edition=2015
+// [edition2021]compile-flags: --edition=2021
+
+#![feature(extern_types)]
+#![feature(cfg_accessible)]
+
+// Struct::unresolved - error
+
+struct Struct {
+    existing: u8,
+}
+
+#[cfg_accessible(Struct::existing)] //~ ERROR not sure
+const A: bool = true;
+#[cfg_accessible(Struct::unresolved)] //~ ERROR not sure
+const B: bool = true;
+
+// Union::unresolved - error
+
+struct Union {
+    existing: u8,
+}
+
+#[cfg_accessible(Union::existing)] //~ ERROR not sure
+const A: bool = true;
+#[cfg_accessible(Union::unresolved)] //~ ERROR not sure
+const B: bool = true;
+
+// Enum::unresolved - error
+
+enum Enum {
+    Existing { existing: u8 },
+}
+
+// FIXME: Currently returns `false` but should be "not sure"
+#[cfg_accessible(Enum::Existing::existing)]
+const A: bool = true;
+// FIXME: Currently returns `false` but should be "not sure"
+#[cfg_accessible(Enum::Existing::unresolved)]
+const B: bool = true;
+#[cfg_accessible(Enum::unresolved)] //~ ERROR not sure
+const C: bool = true;
+
+// Trait::unresolved - false or error, depending on edition (error if you can write Trait::foo
+// instead of <dyn Trait>::foo for methods like impl dyn Trait { fn foo() {} })
+
+trait Trait {}
+impl dyn Trait { fn existing() {} }
+
+// FIXME: Should be a error for edition > 2015
+#[cfg_accessible(Trait::existing)] //~ ERROR not sure
+const A: bool = true;
+#[cfg_accessible(Trait::unresolved)] //~ ERROR not sure
+const B: bool = true;
+
+// TypeAlias::unresolved - error
+
+type TypeAlias = Struct;
+
+#[cfg_accessible(TypeAlias::existing)] //~ ERROR not sure
+const A: bool = true;
+#[cfg_accessible(TypeAlias::unresolved)] //~ ERROR not sure
+const B: bool = true;
+
+// ForeignType::unresolved - error
+
+extern {
+    type ForeignType;
+}
+
+#[cfg_accessible(ForeignType::unresolved)] //~ ERROR not sure
+const A: bool = true;
+
+// AssocType::unresolved - error
+
+trait AssocType {
+    type AssocType;
+}
+
+#[cfg_accessible(AssocType::AssocType::unresolved)] //~ ERROR not sure
+const A: bool = true;
+
+// PrimitiveType::unresolved - error
+
+#[cfg_accessible(u8::unresolved)] //~ ERROR not sure
+const A: bool = true;
+#[cfg_accessible(u8::is_ascii)] //~ ERROR not sure
+const B: bool = true;
+
+fn main() {}