Merging upstream version 1.68.2+dfsg1.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

18 files changed, 371 insertions, 0 deletions

diff --git a/tests/rustdoc-json/enums/auxiliary/color.rs b/tests/rustdoc-json/enums/auxiliary/color.rs
new file mode 100644
index 000000000..7188f7938
--- /dev/null
+++ b/tests/rustdoc-json/enums/auxiliary/color.rs
@@ -0,0 +1,5 @@
+pub enum Color {
+    Red,
+    Green,
+    Blue,
+}
diff --git a/tests/rustdoc-json/enums/discriminant/basic.rs b/tests/rustdoc-json/enums/discriminant/basic.rs
new file mode 100644
index 000000000..06906df3b
--- /dev/null
+++ b/tests/rustdoc-json/enums/discriminant/basic.rs
@@ -0,0 +1,12 @@
+#[repr(i8)]
+pub enum Ordering {
+    // @is "$.index[*][?(@.name=='Less')].inner.discriminant.expr" '"-1"'
+    // @is "$.index[*][?(@.name=='Less')].inner.discriminant.value" '"-1"'
+    Less = -1,
+    // @is "$.index[*][?(@.name=='Equal')].inner.discriminant.expr" '"0"'
+    // @is "$.index[*][?(@.name=='Equal')].inner.discriminant.value" '"0"'
+    Equal = 0,
+    // @is "$.index[*][?(@.name=='Greater')].inner.discriminant.expr" '"1"'
+    // @is "$.index[*][?(@.name=='Greater')].inner.discriminant.value" '"1"'
+    Greater = 1,
+}
diff --git a/tests/rustdoc-json/enums/discriminant/expr.rs b/tests/rustdoc-json/enums/discriminant/expr.rs
new file mode 100644
index 000000000..e639965e7
--- /dev/null
+++ b/tests/rustdoc-json/enums/discriminant/expr.rs
@@ -0,0 +1,39 @@
+pub enum Foo {
+    // @is "$.index[*][?(@.name=='Addition')].inner.discriminant.value" '"0"'
+    // @is "$.index[*][?(@.name=='Addition')].inner.discriminant.expr" '"{ _ }"'
+    Addition = 0 + 0,
+    // @is "$.index[*][?(@.name=='Bin')].inner.discriminant.value" '"1"'
+    // @is "$.index[*][?(@.name=='Bin')].inner.discriminant.expr" '"0b1"'
+    Bin = 0b1,
+    // @is "$.index[*][?(@.name=='Oct')].inner.discriminant.value" '"2"'
+    // @is "$.index[*][?(@.name=='Oct')].inner.discriminant.expr" '"0o2"'
+    Oct = 0o2,
+    // @is "$.index[*][?(@.name=='PubConst')].inner.discriminant.value" '"3"'
+    // @is "$.index[*][?(@.name=='PubConst')].inner.discriminant.expr" '"THREE"'
+    PubConst = THREE,
+    // @is "$.index[*][?(@.name=='Hex')].inner.discriminant.value" '"4"'
+    // @is "$.index[*][?(@.name=='Hex')].inner.discriminant.expr" '"0x4"'
+    Hex = 0x4,
+    // @is "$.index[*][?(@.name=='Cast')].inner.discriminant.value" '"5"'
+    // @is "$.index[*][?(@.name=='Cast')].inner.discriminant.expr" '"{ _ }"'
+    Cast = 5 as isize,
+    // @is "$.index[*][?(@.name=='PubCall')].inner.discriminant.value" '"6"'
+    // @is "$.index[*][?(@.name=='PubCall')].inner.discriminant.expr" '"{ _ }"'
+    PubCall = six(),
+    // @is "$.index[*][?(@.name=='PrivCall')].inner.discriminant.value" '"7"'
+    // @is "$.index[*][?(@.name=='PrivCall')].inner.discriminant.expr" '"{ _ }"'
+    PrivCall = seven(),
+    // @is "$.index[*][?(@.name=='PrivConst')].inner.discriminant.value" '"8"'
+    // @is "$.index[*][?(@.name=='PrivConst')].inner.discriminant.expr" '"EIGHT"'
+    PrivConst = EIGHT,
+}
+
+pub const THREE: isize = 3;
+const EIGHT: isize = 8;
+
+pub const fn six() -> isize {
+    6
+}
+const fn seven() -> isize {
+    7
+}
diff --git a/tests/rustdoc-json/enums/discriminant/limits.rs b/tests/rustdoc-json/enums/discriminant/limits.rs
new file mode 100644
index 000000000..e56d5594f
--- /dev/null
+++ b/tests/rustdoc-json/enums/discriminant/limits.rs
@@ -0,0 +1,43 @@
+// ignore-tidy-linelength
+#![feature(repr128)]
+#![allow(incomplete_features)]
+
+#[repr(u64)]
+pub enum U64 {
+    // @is "$.index[*][?(@.name=='U64Min')].inner.discriminant.value" '"0"'
+    // @is "$.index[*][?(@.name=='U64Min')].inner.discriminant.expr" '"u64::MIN"'
+    U64Min = u64::MIN,
+    // @is "$.index[*][?(@.name=='U64Max')].inner.discriminant.value" '"18446744073709551615"'
+    // @is "$.index[*][?(@.name=='U64Max')].inner.discriminant.expr" '"u64::MAX"'
+    U64Max = u64::MAX,
+}
+
+#[repr(i64)]
+pub enum I64 {
+    // @is "$.index[*][?(@.name=='I64Min')].inner.discriminant.value" '"-9223372036854775808"'
+    // @is "$.index[*][?(@.name=='I64Min')].inner.discriminant.expr" '"i64::MIN"'
+    I64Min = i64::MIN,
+    // @is "$.index[*][?(@.name=='I64Max')].inner.discriminant.value" '"9223372036854775807"'
+    // @is "$.index[*][?(@.name=='I64Max')].inner.discriminant.expr" '"i64::MAX"'
+    I64Max = i64::MAX,
+}
+
+#[repr(u128)]
+pub enum U128 {
+    // @is "$.index[*][?(@.name=='U128Min')].inner.discriminant.value" '"0"'
+    // @is "$.index[*][?(@.name=='U128Min')].inner.discriminant.expr" '"u128::MIN"'
+    U128Min = u128::MIN,
+    // @is "$.index[*][?(@.name=='U128Max')].inner.discriminant.value" '"340282366920938463463374607431768211455"'
+    // @is "$.index[*][?(@.name=='U128Max')].inner.discriminant.expr" '"u128::MAX"'
+    U128Max = u128::MAX,
+}
+
+#[repr(i128)]
+pub enum I128 {
+    // @is "$.index[*][?(@.name=='I128Min')].inner.discriminant.value" '"-170141183460469231731687303715884105728"'
+    // @is "$.index[*][?(@.name=='I128Min')].inner.discriminant.expr" '"i128::MIN"'
+    I128Min = i128::MIN,
+    // @is "$.index[*][?(@.name=='I128Max')].inner.discriminant.value" '"170141183460469231731687303715884105727"'
+    // @is "$.index[*][?(@.name=='I128Max')].inner.discriminant.expr" '"i128::MAX"'
+    I128Max = i128::MAX,
+}
diff --git a/tests/rustdoc-json/enums/discriminant/num_underscore_and_suffix.rs b/tests/rustdoc-json/enums/discriminant/num_underscore_and_suffix.rs
new file mode 100644
index 000000000..6889b305f
--- /dev/null
+++ b/tests/rustdoc-json/enums/discriminant/num_underscore_and_suffix.rs
@@ -0,0 +1,15 @@
+#[repr(u32)]
+pub enum Foo {
+    // @is "$.index[*][?(@.name=='Basic')].inner.discriminant.value" '"0"'
+    // @is "$.index[*][?(@.name=='Basic')].inner.discriminant.expr" '"0"'
+    Basic = 0,
+    // @is "$.index[*][?(@.name=='Suffix')].inner.discriminant.value" '"10"'
+    // @is "$.index[*][?(@.name=='Suffix')].inner.discriminant.expr" '"10u32"'
+    Suffix = 10u32,
+    // @is "$.index[*][?(@.name=='Underscore')].inner.discriminant.value" '"100"'
+    // @is "$.index[*][?(@.name=='Underscore')].inner.discriminant.expr" '"1_0_0"'
+    Underscore = 1_0_0,
+    // @is "$.index[*][?(@.name=='SuffixUnderscore')].inner.discriminant.value" '"1000"'
+    // @is "$.index[*][?(@.name=='SuffixUnderscore')].inner.discriminant.expr" '"1_0_0_0u32"'
+    SuffixUnderscore = 1_0_0_0u32,
+}
diff --git a/tests/rustdoc-json/enums/discriminant/only_some_have_discriminant.rs b/tests/rustdoc-json/enums/discriminant/only_some_have_discriminant.rs
new file mode 100644
index 000000000..6a4f54de6
--- /dev/null
+++ b/tests/rustdoc-json/enums/discriminant/only_some_have_discriminant.rs
@@ -0,0 +1,10 @@
+pub enum Foo {
+    // @is "$.index[*][?(@.name=='Has')].inner.discriminant" '{"expr":"0", "value":"0"}'
+    Has = 0,
+    // @is "$.index[*][?(@.name=='Doesnt')].inner.discriminant" null
+    Doesnt,
+    // @is "$.index[*][?(@.name=='AlsoDoesnt')].inner.discriminant" null
+    AlsoDoesnt,
+    // @is "$.index[*][?(@.name=='AlsoHas')].inner.discriminant" '{"expr":"44", "value":"44"}'
+    AlsoHas = 44,
+}
diff --git a/tests/rustdoc-json/enums/discriminant/struct.rs b/tests/rustdoc-json/enums/discriminant/struct.rs
new file mode 100644
index 000000000..e91a632a3
--- /dev/null
+++ b/tests/rustdoc-json/enums/discriminant/struct.rs
@@ -0,0 +1,15 @@
+// ignore-tidy-linelength
+
+#[repr(i32)]
+// @is "$.index[*][?(@.name=='Foo')].attrs" '["#[repr(i32)]"]'
+pub enum Foo {
+    // @is    "$.index[*][?(@.name=='Struct')].inner.discriminant" null
+    // @count "$.index[*][?(@.name=='Struct')].inner.kind.struct.fields[*]" 0
+    Struct {},
+    // @is    "$.index[*][?(@.name=='StructWithDiscr')].inner.discriminant" '{"expr": "42", "value": "42"}'
+    // @count "$.index[*][?(@.name=='StructWithDiscr')].inner.kind.struct.fields[*]" 1
+    StructWithDiscr { x: i32 } = 42,
+    // @is    "$.index[*][?(@.name=='StructWithHexDiscr')].inner.discriminant"  '{"expr": "0x42", "value": "66"}'
+    // @count "$.index[*][?(@.name=='StructWithHexDiscr')].inner.kind.struct.fields[*]" 2
+    StructWithHexDiscr { x: i32, y: bool } = 0x42,
+}
diff --git a/tests/rustdoc-json/enums/discriminant/tuple.rs b/tests/rustdoc-json/enums/discriminant/tuple.rs
new file mode 100644
index 000000000..b94d5739e
--- /dev/null
+++ b/tests/rustdoc-json/enums/discriminant/tuple.rs
@@ -0,0 +1,15 @@
+// ignore-tidy-linelength
+
+#[repr(u32)]
+// @is "$.index[*][?(@.name=='Foo')].attrs" '["#[repr(u32)]"]'
+pub enum Foo {
+    // @is    "$.index[*][?(@.name=='Tuple')].inner.discriminant" null
+    // @count "$.index[*][?(@.name=='Tuple')].inner.kind.tuple[*]" 0
+    Tuple(),
+    // @is    "$.index[*][?(@.name=='TupleWithDiscr')].inner.discriminant" '{"expr": "1", "value": "1"}'
+    // @count "$.index[*][?(@.name=='TupleWithDiscr')].inner.kind.tuple[*]" 1
+    TupleWithDiscr(i32) = 1,
+    // @is    "$.index[*][?(@.name=='TupleWithBinDiscr')].inner.discriminant" '{"expr": "0b10", "value": "2"}'
+    // @count "$.index[*][?(@.name=='TupleWithBinDiscr')].inner.kind.tuple[*]" 2
+    TupleWithBinDiscr(i32, i32) = 0b10,
+}
diff --git a/tests/rustdoc-json/enums/doc_link_to_foreign_variant.rs b/tests/rustdoc-json/enums/doc_link_to_foreign_variant.rs
new file mode 100644
index 000000000..470b195a2
--- /dev/null
+++ b/tests/rustdoc-json/enums/doc_link_to_foreign_variant.rs
@@ -0,0 +1,11 @@
+// aux-build: color.rs
+
+//! The purpose of this test it to have a link to [a foreign variant](Red).
+
+extern crate color;
+use color::Color::Red;
+
+// @set red = "$.index[*][?(@.inner.is_crate == true)].links.Red"
+
+// @!has "$.index[*][?(@.name == 'Red')]"
+// @!has "$.index[*][?(@.name == 'Color')]"
diff --git a/tests/rustdoc-json/enums/field_hidden.rs b/tests/rustdoc-json/enums/field_hidden.rs
new file mode 100644
index 000000000..78a054314
--- /dev/null
+++ b/tests/rustdoc-json/enums/field_hidden.rs
@@ -0,0 +1,13 @@
+// Regression test for <https://github.com/rust-lang/rust/issues/100529>.
+
+#![no_core]
+#![feature(no_core)]
+
+// @has "$.index[*][?(@.name=='ParseError')]"
+// @has "$.index[*][?(@.name=='UnexpectedEndTag')]"
+// @is "$.index[*][?(@.name=='UnexpectedEndTag')].inner.kind.tuple" [null]
+// @is "$.index[*][?(@.name=='UnexpectedEndTag')].inner.discriminant" null
+
+pub enum ParseError {
+    UnexpectedEndTag(#[doc(hidden)] u32),
+}
diff --git a/tests/rustdoc-json/enums/kind.rs b/tests/rustdoc-json/enums/kind.rs
new file mode 100644
index 000000000..1787a859c
--- /dev/null
+++ b/tests/rustdoc-json/enums/kind.rs
@@ -0,0 +1,32 @@
+// ignore-tidy-linelength
+
+#![feature(no_core)]
+#![no_core]
+
+pub enum Foo {
+    // @set Unit = "$.index[*][?(@.name=='Unit')].id"
+    // @is "$.index[*][?(@.name=='Unit')].inner.kind" '"plain"'
+    Unit,
+    // @set Named = "$.index[*][?(@.name=='Named')].id"
+    // @is "$.index[*][?(@.name=='Named')].inner.kind.struct" '{"fields": [], "fields_stripped": false}'
+    Named {},
+    // @set Tuple = "$.index[*][?(@.name=='Tuple')].id"
+    // @is "$.index[*][?(@.name=='Tuple')].inner.kind.tuple" []
+    Tuple(),
+    // @set NamedField = "$.index[*][?(@.name=='NamedField')].id"
+    // @set x = "$.index[*][?(@.name=='x' && @.kind=='struct_field')].id"
+    // @is "$.index[*][?(@.name=='NamedField')].inner.kind.struct.fields[*]" $x
+    // @is "$.index[*][?(@.name=='NamedField')].inner.kind.struct.fields_stripped" false
+    NamedField { x: i32 },
+    // @set TupleField = "$.index[*][?(@.name=='TupleField')].id"
+    // @set tup_field = "$.index[*][?(@.name=='0' && @.kind=='struct_field')].id"
+    // @is "$.index[*][?(@.name=='TupleField')].inner.kind.tuple[*]" $tup_field
+    TupleField(i32),
+}
+
+// @is    "$.index[*][?(@.name=='Foo')].inner.variants[0]" $Unit
+// @is    "$.index[*][?(@.name=='Foo')].inner.variants[1]" $Named
+// @is    "$.index[*][?(@.name=='Foo')].inner.variants[2]" $Tuple
+// @is    "$.index[*][?(@.name=='Foo')].inner.variants[3]" $NamedField
+// @is    "$.index[*][?(@.name=='Foo')].inner.variants[4]" $TupleField
+// @count "$.index[*][?(@.name=='Foo')].inner.variants[*]" 5
diff --git a/tests/rustdoc-json/enums/struct_field_hidden.rs b/tests/rustdoc-json/enums/struct_field_hidden.rs
new file mode 100644
index 000000000..de939cde2
--- /dev/null
+++ b/tests/rustdoc-json/enums/struct_field_hidden.rs
@@ -0,0 +1,16 @@
+pub enum Foo {
+    Variant {
+        #[doc(hidden)]
+        a: i32,
+        // @set b = "$.index[*][?(@.name=='b')].id"
+        b: i32,
+        #[doc(hidden)]
+        x: i32,
+        // @set y = "$.index[*][?(@.name=='y')].id"
+        y: i32,
+    },
+    // @is "$.index[*][?(@.name=='Variant')].inner.kind.struct.fields_stripped" true
+    // @is "$.index[*][?(@.name=='Variant')].inner.kind.struct.fields[0]" $b
+    // @is "$.index[*][?(@.name=='Variant')].inner.kind.struct.fields[1]" $y
+    // @count "$.index[*][?(@.name=='Variant')].inner.kind.struct.fields[*]" 2
+}
diff --git a/tests/rustdoc-json/enums/tuple_fields_hidden.rs b/tests/rustdoc-json/enums/tuple_fields_hidden.rs
new file mode 100644
index 000000000..70bfbb818
--- /dev/null
+++ b/tests/rustdoc-json/enums/tuple_fields_hidden.rs
@@ -0,0 +1,83 @@
+#![feature(no_core)]
+#![no_core]
+
+// @set 1.1.0 = "$.index[*][?(@.docs=='1.1.0')].id"
+// @set 2.1.0 = "$.index[*][?(@.docs=='2.1.0')].id"
+// @set 2.1.1 = "$.index[*][?(@.docs=='2.1.1')].id"
+// @set 2.2.1 = "$.index[*][?(@.docs=='2.2.1')].id"
+// @set 2.3.0 = "$.index[*][?(@.docs=='2.3.0')].id"
+// @set 3.1.1 = "$.index[*][?(@.docs=='3.1.1')].id"
+// @set 3.1.2 = "$.index[*][?(@.docs=='3.1.2')].id"
+// @set 3.2.0 = "$.index[*][?(@.docs=='3.2.0')].id"
+// @set 3.2.2 = "$.index[*][?(@.docs=='3.2.2')].id"
+// @set 3.3.0 = "$.index[*][?(@.docs=='3.3.0')].id"
+// @set 3.3.1 = "$.index[*][?(@.docs=='3.3.1')].id"
+
+pub enum EnumWithStrippedTupleVariants {
+    // @count "$.index[*][?(@.name=='None')].inner.kind.tuple[*]" 0
+    None(),
+
+    // @count "$.index[*][?(@.name=='One')].inner.kind.tuple[*]" 1
+    // @is    "$.index[*][?(@.name=='One')].inner.kind.tuple[0]" $1.1.0
+    One(/** 1.1.0*/ bool),
+    // @count "$.index[*][?(@.name=='OneHidden')].inner.kind.tuple[*]" 1
+    // @is    "$.index[*][?(@.name=='OneHidden')].inner.kind.tuple[0]" null
+    OneHidden(#[doc(hidden)] bool),
+
+    // @count "$.index[*][?(@.name=='Two')].inner.kind.tuple[*]" 2
+    // @is    "$.index[*][?(@.name=='Two')].inner.kind.tuple[0]" $2.1.0
+    // @is    "$.index[*][?(@.name=='Two')].inner.kind.tuple[1]" $2.1.1
+    Two(/** 2.1.0*/ bool, /** 2.1.1*/ bool),
+    // @count "$.index[*][?(@.name=='TwoLeftHidden')].inner.kind.tuple[*]" 2
+    // @is    "$.index[*][?(@.name=='TwoLeftHidden')].inner.kind.tuple[0]" null
+    // @is    "$.index[*][?(@.name=='TwoLeftHidden')].inner.kind.tuple[1]" $2.2.1
+    TwoLeftHidden(#[doc(hidden)] bool, /** 2.2.1*/ bool),
+    // @count "$.index[*][?(@.name=='TwoRightHidden')].inner.kind.tuple[*]" 2
+    // @is    "$.index[*][?(@.name=='TwoRightHidden')].inner.kind.tuple[0]" $2.3.0
+    // @is    "$.index[*][?(@.name=='TwoRightHidden')].inner.kind.tuple[1]" null
+    TwoRightHidden(/** 2.3.0*/ bool, #[doc(hidden)] bool),
+    // @count "$.index[*][?(@.name=='TwoBothHidden')].inner.kind.tuple[*]" 2
+    // @is    "$.index[*][?(@.name=='TwoBothHidden')].inner.kind.tuple[0]" null
+    // @is    "$.index[*][?(@.name=='TwoBothHidden')].inner.kind.tuple[1]" null
+    TwoBothHidden(#[doc(hidden)] bool, #[doc(hidden)] bool),
+
+    // @count "$.index[*][?(@.name=='Three1')].inner.kind.tuple[*]" 3
+    // @is    "$.index[*][?(@.name=='Three1')].inner.kind.tuple[0]" null
+    // @is    "$.index[*][?(@.name=='Three1')].inner.kind.tuple[1]" $3.1.1
+    // @is    "$.index[*][?(@.name=='Three1')].inner.kind.tuple[2]" $3.1.2
+    Three1(#[doc(hidden)] bool, /** 3.1.1*/ bool, /** 3.1.2*/ bool),
+    // @count "$.index[*][?(@.name=='Three2')].inner.kind.tuple[*]" 3
+    // @is    "$.index[*][?(@.name=='Three2')].inner.kind.tuple[0]" $3.2.0
+    // @is    "$.index[*][?(@.name=='Three2')].inner.kind.tuple[1]" null
+    // @is    "$.index[*][?(@.name=='Three2')].inner.kind.tuple[2]" $3.2.2
+    Three2(/** 3.2.0*/ bool, #[doc(hidden)] bool, /** 3.2.2*/ bool),
+    // @count "$.index[*][?(@.name=='Three3')].inner.kind.tuple[*]" 3
+    // @is    "$.index[*][?(@.name=='Three3')].inner.kind.tuple[0]" $3.3.0
+    // @is    "$.index[*][?(@.name=='Three3')].inner.kind.tuple[1]" $3.3.1
+    // @is    "$.index[*][?(@.name=='Three3')].inner.kind.tuple[2]" null
+    Three3(/** 3.3.0*/ bool, /** 3.3.1*/ bool, #[doc(hidden)] bool),
+}
+
+// @is "$.index[*][?(@.docs=='1.1.0')].name" '"0"'
+// @is "$.index[*][?(@.docs=='2.1.0')].name" '"0"'
+// @is "$.index[*][?(@.docs=='2.1.1')].name" '"1"'
+// @is "$.index[*][?(@.docs=='2.2.1')].name" '"1"'
+// @is "$.index[*][?(@.docs=='2.3.0')].name" '"0"'
+// @is "$.index[*][?(@.docs=='3.1.1')].name" '"1"'
+// @is "$.index[*][?(@.docs=='3.1.2')].name" '"2"'
+// @is "$.index[*][?(@.docs=='3.2.0')].name" '"0"'
+// @is "$.index[*][?(@.docs=='3.2.2')].name" '"2"'
+// @is "$.index[*][?(@.docs=='3.3.0')].name" '"0"'
+// @is "$.index[*][?(@.docs=='3.3.1')].name" '"1"'
+
+// @is "$.index[*][?(@.docs=='1.1.0')].inner" '{"kind": "primitive", "inner": "bool"}'
+// @is "$.index[*][?(@.docs=='2.1.0')].inner" '{"kind": "primitive", "inner": "bool"}'
+// @is "$.index[*][?(@.docs=='2.1.1')].inner" '{"kind": "primitive", "inner": "bool"}'
+// @is "$.index[*][?(@.docs=='2.2.1')].inner" '{"kind": "primitive", "inner": "bool"}'
+// @is "$.index[*][?(@.docs=='2.3.0')].inner" '{"kind": "primitive", "inner": "bool"}'
+// @is "$.index[*][?(@.docs=='3.1.1')].inner" '{"kind": "primitive", "inner": "bool"}'
+// @is "$.index[*][?(@.docs=='3.1.2')].inner" '{"kind": "primitive", "inner": "bool"}'
+// @is "$.index[*][?(@.docs=='3.2.0')].inner" '{"kind": "primitive", "inner": "bool"}'
+// @is "$.index[*][?(@.docs=='3.2.2')].inner" '{"kind": "primitive", "inner": "bool"}'
+// @is "$.index[*][?(@.docs=='3.3.0')].inner" '{"kind": "primitive", "inner": "bool"}'
+// @is "$.index[*][?(@.docs=='3.3.1')].inner" '{"kind": "primitive", "inner": "bool"}'
diff --git a/tests/rustdoc-json/enums/use_glob.rs b/tests/rustdoc-json/enums/use_glob.rs
new file mode 100644
index 000000000..62b8b832a
--- /dev/null
+++ b/tests/rustdoc-json/enums/use_glob.rs
@@ -0,0 +1,18 @@
+// Regression test for <https://github.com/rust-lang/rust/issues/104942>
+
+#![feature(no_core)]
+#![no_core]
+
+// @set Color = "$.index[*][?(@.name == 'Color')].id"
+pub enum Color {
+    Red,
+    Green,
+    Blue,
+}
+
+// @set use_Color = "$.index[*][?(@.kind == 'import')].id"
+// @is "$.index[*][?(@.kind == 'import')].inner.id" $Color
+// @is "$.index[*][?(@.kind == 'import')].inner.glob" true
+pub use Color::*;
+
+// @ismany "$.index[*][?(@.name == 'use_glob')].inner.items[*]" $Color $use_Color
diff --git a/tests/rustdoc-json/enums/use_variant.rs b/tests/rustdoc-json/enums/use_variant.rs
new file mode 100644
index 000000000..5f0d2b9b1
--- /dev/null
+++ b/tests/rustdoc-json/enums/use_variant.rs
@@ -0,0 +1,15 @@
+#![feature(no_core)]
+#![no_core]
+
+// @set AlwaysNone = "$.index[*][?(@.name == 'AlwaysNone')].id"
+pub enum AlwaysNone {
+    // @set None = "$.index[*][?(@.name == 'None')].id"
+    None,
+}
+// @is "$.index[*][?(@.name == 'AlwaysNone')].inner.variants[*]" $None
+
+// @set use_None = "$.index[*][?(@.kind == 'import')].id"
+// @is "$.index[*][?(@.kind == 'import')].inner.id" $None
+pub use AlwaysNone::None;
+
+// @ismany "$.index[*][?(@.name == 'use_variant')].inner.items[*]" $AlwaysNone $use_None
diff --git a/tests/rustdoc-json/enums/use_variant_foreign.rs b/tests/rustdoc-json/enums/use_variant_foreign.rs
new file mode 100644
index 000000000..11bb6ce1f
--- /dev/null
+++ b/tests/rustdoc-json/enums/use_variant_foreign.rs
@@ -0,0 +1,9 @@
+// aux-build: color.rs
+
+extern crate color;
+
+// @is "$.index[*][?(@.inner.name == 'Red')].kind" '"import"'
+pub use color::Color::Red;
+
+// @!has "$.index[*][?(@.name == 'Red')]"
+// @!has "$.index[*][?(@.name == 'Color')]"
diff --git a/tests/rustdoc-json/enums/variant_struct.rs b/tests/rustdoc-json/enums/variant_struct.rs
new file mode 100644
index 000000000..bc870c502
--- /dev/null
+++ b/tests/rustdoc-json/enums/variant_struct.rs
@@ -0,0 +1,10 @@
+// @is "$.index[*][?(@.name=='EnumStruct')].visibility" \"public\"
+// @is "$.index[*][?(@.name=='EnumStruct')].kind" \"enum\"
+pub enum EnumStruct {
+    // @is "$.index[*][?(@.name=='x')].kind" \"struct_field\"
+    // @set x = "$.index[*][?(@.name=='x')].id"
+    // @is "$.index[*][?(@.name=='y')].kind" \"struct_field\"
+    // @set y = "$.index[*][?(@.name=='y')].id"
+    // @ismany "$.index[*][?(@.name=='VariantS')].inner.kind.struct.fields[*]" $x $y
+    VariantS { x: u32, y: String },
+}
diff --git a/tests/rustdoc-json/enums/variant_tuple_struct.rs b/tests/rustdoc-json/enums/variant_tuple_struct.rs
new file mode 100644
index 000000000..d1207bbfb
--- /dev/null
+++ b/tests/rustdoc-json/enums/variant_tuple_struct.rs
@@ -0,0 +1,10 @@
+// @is "$.index[*][?(@.name=='EnumTupleStruct')].visibility" \"public\"
+// @is "$.index[*][?(@.name=='EnumTupleStruct')].kind" \"enum\"
+pub enum EnumTupleStruct {
+    // @is "$.index[*][?(@.name=='0')].kind" \"struct_field\"
+    // @set f0 = "$.index[*][?(@.name=='0')].id"
+    // @is "$.index[*][?(@.name=='1')].kind" \"struct_field\"
+    // @set f1 = "$.index[*][?(@.name=='1')].id"
+    // @ismany "$.index[*][?(@.name=='VariantA')].inner.kind.tuple[*]" $f0 $f1
+    VariantA(u32, String),
+}