Added lint enum_tuple_variant_field_now_doc_hidden

src/lints/enum_tuple_variant_field_now_doc_hidden.ron

@@ -0,0 +1,69 @@
+SemverQuery(
+    id: "enum_tuple_variant_field_now_doc_hidden",
+    human_readable_name: "pub enum tuple variant field is now #[doc(hidden)]",
+    description: "A pub enum tuple variant field is now marked #[doc(hidden)] and is thus no longer part of the public API.",
+    required_update: Major,
+    reference_link: Some("https://doc.rust-lang.org/rustdoc/write-documentation/the-doc-attribute.html#hidden"),
+    query: r#"
+    {
+        CrateDiff {
+            baseline {
+                item {
+                    ... on Enum {
+                        visibility_limit @filter(op: "=", value: ["$public"])
+                        enum_name: name @output @tag
+
+                        importable_path {
+                            path @output @tag
+                            public_api @filter(op: "=", value: ["$true"])
+                        }
+                        variant {
+                            ... on TupleVariant {
+                                variant_name: name @output @tag
+                                public_api_eligible @filter(op: "=", value: ["$true"])
+
+                                field {
+                                    field_name: name @output @tag
+                                    public_api_eligible @filter(op: "=", value: ["$true"])
+                                }
+                            }
+                        }
+                    }
+                }
+            }
+            current {
+                item {
+                    ... on Enum {
+                        visibility_limit @filter(op: "=", value: ["$public"])
+                        name @filter(op: "=", value: ["%enum_name"])
+
+                        importable_path {
+                            path @filter(op: "=", value: ["%path"])
+                        }
+                        variant {
+                            ... on TupleVariant {
+                                name @filter(op: "=", value: ["%variant_name"])
+                                public_api_eligible @filter(op: "=", value: ["$true"])
+
+                                field {
+                                    public_api_eligible @filter(op: "!=", value: ["$true"])
+                                    name @filter(op: "=", value: ["%field_name"])
+                                    span_: span @optional {
+                                        filename @output
+                                        begin_line @output
+                                    }
+                                }
+                            }
+                        }
+                    }
+                }
+            }
+        }
+    }"#,
+    arguments: {
+        "public": "public",
+        "true": true,
+    },
+    error_message: "A field of a pub enum tuple variant is now marked #[doc(hidden)] and is no longer part of the public API.",
+    per_result_error_template: Some("field {{enum_name}}.{{field_name}} in file {{span_filename}}:{{span_begin_line}}"),
+)

src/query.rs

@@ -469,6 +469,7 @@ macro_rules! add_lints {
 }
 
 add_lints!(
+    enum_tuple_variant_field_now_doc_hidden,
     trait_method_now_doc_hidden,
     auto_trait_impl_removed,
     constructible_struct_adds_field,

test_crates/enum_tuple_variant_field_now_doc_hidden/new/Cargo.toml

@@ -0,0 +1,7 @@
+[package]
+publish = false
+name = "enum_tuple_variant_field_now_doc_hidden"
+version = "0.1.0"
+edition = "2021"
+
+[dependencies]

test_crates/enum_tuple_variant_field_now_doc_hidden/new/src/lib.rs

@@ -0,0 +1,17 @@
+//Adding #[doc(hidden)] should not affect since the enum is not a part of public API
+enum NonPublicEnum {
+    TupleVariant(#[doc(hidden)] i32, u8),
+}
+// basic test case(adding #[doc(hidden)] to public enum tuple variant)
+pub enum PulicEnumA {
+    TupleVariantWithPublicField(#[doc(hidden)] u8, i32),
+}
+// Should not affect since there the field was already hidden
+pub enum PulicEnumB {
+    TupleVariantWithPublicFieldHidden(#[doc(hidden)] i64, u8),
+}
+// should not affect since the public enum was not a part of Public API
+#[doc(hidden)]
+pub enum PulicEnumC {
+    TupleVariantWithPublicField(#[doc(hidden)] u8, i64),
+}

test_crates/enum_tuple_variant_field_now_doc_hidden/old/Cargo.toml

@@ -0,0 +1,7 @@
+[package]
+publish = false
+name = "enum_tuple_variant_field_now_doc_hidden"
+version = "0.1.0"
+edition = "2021"
+
+[dependencies]

test_crates/enum_tuple_variant_field_now_doc_hidden/old/src/lib.rs

@@ -0,0 +1,13 @@
+enum NonPublicEnum {
+    TupleVariant(i32, u8),
+}
+pub enum PulicEnumA {
+    TupleVariantWithPublicField(u8, i32),
+}
+pub enum PulicEnumB {
+    TupleVariantWithPublicFieldHidden(#[doc(hidden)] i64, u8),
+}
+#[doc(hidden)]
+pub enum PulicEnumC {
+    TupleVariantWithPublicField(u8, i64),
+}

test_outputs/enum_tuple_variant_field_now_doc_hidden.output.ron

@@ -0,0 +1,15 @@
+{
+    "./test_crates/enum_tuple_variant_field_now_doc_hidden/": [
+         {
+            "enum_name": String("PulicEnumA"),
+            "field_name": String("0"),
+            "path": List([
+                String("enum_tuple_variant_field_now_doc_hidden"),
+                String("PulicEnumA"),
+            ]),
+            "span_begin_line": Uint64(7),
+            "span_filename": String("src/lib.rs"),
+            "variant_name": String("TupleVariantWithPublicField"),
+        },
+    ],
+}