Merge pull request #1 from Infineon/render_tests

Render tests

src/librustdoc/clean/mod.rs

@@ -1046,7 +1046,11 @@ fn clean_fn_or_proc_macro<'tcx>(
         None => {
             let mut func = clean_function(cx, sig, generics, FunctionArgs::Body(body_id));
             clean_fn_decl_legacy_const_generics(&mut func, attrs);
-            FunctionItem(func)
+            if cx.cache.document_tests && cx.cache.tests.contains(&item.owner_id.to_def_id()) {
+                TestItem(func)
+            } else {
+                FunctionItem(func)
+            }
         }
     }
 }

src/librustdoc/clean/types.rs

@@ -659,7 +659,10 @@ impl Item {
                     asyncness: hir::IsAsync::NotAsync,
                 }
             }
-            ItemKind::FunctionItem(_) | ItemKind::MethodItem(_, _) | ItemKind::TyMethodItem(_) => {
+            ItemKind::FunctionItem(_)
+            | ItemKind::MethodItem(_, _)
+            | ItemKind::TyMethodItem(_)
+            | ItemKind::TestItem(_) => {
                 let def_id = self.def_id().unwrap();
                 build_fn_header(def_id, tcx, tcx.asyncness(def_id))
             }
@@ -826,6 +829,7 @@ pub(crate) enum ItemKind {
     UnionItem(Union),
     EnumItem(Enum),
     FunctionItem(Box<Function>),
+    TestItem(Box<Function>),
     ModuleItem(Module),
     TypeAliasItem(Box<TypeAlias>),
     OpaqueTyItem(OpaqueTy),
@@ -885,6 +889,7 @@ impl ItemKind {
             ExternCrateItem { .. }
             | ImportItem(_)
             | FunctionItem(_)
+            | TestItem(_)
             | TypeAliasItem(_)
             | OpaqueTyItem(_)
             | StaticItem(_)

src/librustdoc/config.rs

@@ -160,9 +160,6 @@ pub(crate) struct Options {
     /// the compiler will scrape examples and not generate documentation.
     pub(crate) scrape_examples_options: Option<ScrapeExamplesOptions>,
 
-    /// Whether to generate documentation for tests.
-    pub(crate) document_tests: bool,
-
     /// Note: this field is duplicated in `RenderOptions` because it's useful
     /// to have it in both places.
     pub(crate) unstable_features: rustc_feature::UnstableFeatures,
@@ -216,7 +213,6 @@ impl fmt::Debug for Options {
             .field("test_builder_wrappers", &self.test_builder_wrappers)
             .field("nocapture", &self.nocapture)
             .field("scrape_examples_options", &self.scrape_examples_options)
-            .field("document_tests", &self.document_tests)
             .field("unstable_features", &self.unstable_features)
             .finish()
     }
@@ -276,6 +272,8 @@ pub(crate) struct RenderOptions {
     pub(crate) document_private: bool,
     /// Document items that have `doc(hidden)`.
     pub(crate) document_hidden: bool,
+    /// Document tests.
+    pub(crate) document_tests: bool,
     /// If `true`, generate a JSON file in the crate folder instead of HTML redirection files.
     pub(crate) generate_redirect_map: bool,
     /// Show the memory layout of types in the docs.
@@ -782,7 +780,6 @@ impl Options {
             output_format,
             json_unused_externs,
             scrape_examples_options,
-            document_tests,
             unstable_features,
             expanded_args: args,
         };
@@ -806,6 +803,7 @@ impl Options {
             markdown_playground_url,
             document_private,
             document_hidden,
+            document_tests,
             generate_redirect_map,
             show_type_layout,
             unstable_features,

src/librustdoc/core.rs

@@ -195,11 +195,10 @@ pub(crate) fn create_config(
         describe_lints,
         lint_cap,
         scrape_examples_options,
-        document_tests,
         expanded_args,
         ..
     }: RustdocOptions,
-    RenderOptions { document_private, .. }: &RenderOptions,
+    RenderOptions { document_private, document_tests, .. }: &RenderOptions,
     using_internal_features: Arc<AtomicBool>,
 ) -> rustc_interface::Config {
     // Add the doc cfg into the doc build.
@@ -229,7 +228,7 @@ pub(crate) fn create_config(
     let resolve_doc_links =
         if *document_private { ResolveDocLinks::All } else { ResolveDocLinks::Exported };
     let test =
-        scrape_examples_options.map(|opts| opts.scrape_tests).unwrap_or(false) || document_tests;
+        scrape_examples_options.map(|opts| opts.scrape_tests).unwrap_or(false) || *document_tests;
     // plays with error output here!
     let sessopts = config::Options {
         maybe_sysroot,
@@ -342,7 +341,11 @@ pub(crate) fn run_global_ctxt(
         impl_trait_bounds: Default::default(),
         generated_synthetics: Default::default(),
         auto_traits,
-        cache: Cache::new(render_options.document_private, render_options.document_hidden),
+        cache: Cache::new(
+            render_options.document_private,
+            render_options.document_hidden,
+            render_options.document_tests,
+        ),
         inlined: FxHashSet::default(),
         output_format,
         render_options,

src/librustdoc/fold.rs

@@ -77,6 +77,7 @@ pub(crate) trait DocFolder: Sized {
             ExternCrateItem { src: _ }
             | ImportItem(_)
             | FunctionItem(_)
+            | TestItem(_)
             | OpaqueTyItem(_)
             | StaticItem(_)
             | ConstantItem(_)

src/librustdoc/formats/cache.rs

@@ -89,6 +89,11 @@ pub(crate) struct Cache {
     /// Whether to document hidden items.
     /// This is stored in `Cache` so it doesn't need to be passed through all rustdoc functions.
     pub(crate) document_hidden: bool,
+    /// Whether to document tests.
+    /// This is stored in `Cache` so it doesn't need to be passed through all rustdoc functions.
+    pub(crate) document_tests: bool,
+    /// DefIds of all functions which are tests.
+    pub(crate) tests: FxHashSet<DefId>,
 
     /// Crates marked with [`#[doc(masked)]`][doc_masked].
     ///
@@ -140,8 +145,8 @@ struct CacheBuilder<'a, 'tcx> {
 }
 
 impl Cache {
-    pub(crate) fn new(document_private: bool, document_hidden: bool) -> Self {
-        Cache { document_private, document_hidden, ..Cache::default() }
+    pub(crate) fn new(document_private: bool, document_hidden: bool, document_tests: bool) -> Self {
+        Cache { document_private, document_hidden, document_tests, ..Cache::default() }
     }
 
     /// Populates the `Cache` with more data. The returned `Crate` will be missing some data that was
@@ -424,6 +429,7 @@ impl<'a, 'tcx> DocFolder for CacheBuilder<'a, 'tcx> {
             | clean::TraitItem(..)
             | clean::TraitAliasItem(..)
             | clean::FunctionItem(..)
+            | clean::TestItem(..)
             | clean::ModuleItem(..)
             | clean::ForeignFunctionItem(..)
             | clean::ForeignStaticItem(..)

src/librustdoc/formats/item_type.rs

@@ -58,6 +58,7 @@ pub(crate) enum ItemType {
     TraitAlias = 25,
     // This number is reserved for use in JavaScript
     // Generic = 26,
+    Test = 27,
 }
 
 impl Serialize for ItemType {
@@ -84,6 +85,7 @@ impl<'a> From<&'a clean::Item> for ItemType {
             clean::UnionItem(..) => ItemType::Union,
             clean::EnumItem(..) => ItemType::Enum,
             clean::FunctionItem(..) => ItemType::Function,
+            clean::TestItem(..) => ItemType::Test,
             clean::TypeAliasItem(..) => ItemType::TypeAlias,
             clean::OpaqueTyItem(..) => ItemType::OpaqueTy,
             clean::StaticItem(..) => ItemType::Static,
@@ -177,6 +179,7 @@ impl ItemType {
             ItemType::Union => "union",
             ItemType::Enum => "enum",
             ItemType::Function => "fn",
+            ItemType::Test => "test",
             ItemType::TypeAlias => "type",
             ItemType::Static => "static",
             ItemType::Trait => "trait",

src/librustdoc/html/render/mod.rs

@@ -337,6 +337,7 @@ struct AllTypes {
     traits: FxHashSet<ItemEntry>,
     macros: FxHashSet<ItemEntry>,
     functions: FxHashSet<ItemEntry>,
+    tests: FxHashSet<ItemEntry>,
     type_aliases: FxHashSet<ItemEntry>,
     opaque_tys: FxHashSet<ItemEntry>,
     statics: FxHashSet<ItemEntry>,
@@ -357,6 +358,7 @@ impl AllTypes {
             traits: new_set(100),
             macros: new_set(100),
             functions: new_set(100),
+            tests: new_set(100),
             type_aliases: new_set(100),
             opaque_tys: new_set(100),
             statics: new_set(100),
@@ -381,6 +383,7 @@ impl AllTypes {
                 ItemType::Trait => self.traits.insert(ItemEntry::new(new_url, name)),
                 ItemType::Macro => self.macros.insert(ItemEntry::new(new_url, name)),
                 ItemType::Function => self.functions.insert(ItemEntry::new(new_url, name)),
+                ItemType::Test => self.tests.insert(ItemEntry::new(new_url, name)),
                 ItemType::TypeAlias => self.type_aliases.insert(ItemEntry::new(new_url, name)),
                 ItemType::OpaqueTy => self.opaque_tys.insert(ItemEntry::new(new_url, name)),
                 ItemType::Static => self.statics.insert(ItemEntry::new(new_url, name)),
@@ -419,6 +422,9 @@ impl AllTypes {
         if !self.functions.is_empty() {
             sections.insert(ItemSection::Functions);
         }
+        if !self.tests.is_empty() {
+            sections.insert(ItemSection::Tests);
+        }
         if !self.type_aliases.is_empty() {
             sections.insert(ItemSection::TypeAliases);
         }
@@ -476,6 +482,7 @@ impl AllTypes {
         print_entries(f, &self.attribute_macros, ItemSection::AttributeMacros);
         print_entries(f, &self.derive_macros, ItemSection::DeriveMacros);
         print_entries(f, &self.functions, ItemSection::Functions);
+        print_entries(f, &self.tests, ItemSection::Tests);
         print_entries(f, &self.type_aliases, ItemSection::TypeAliases);
         print_entries(f, &self.trait_aliases, ItemSection::TraitAliases);
         print_entries(f, &self.opaque_tys, ItemSection::OpaqueTypes);
@@ -2149,6 +2156,7 @@ pub(crate) enum ItemSection {
     Statics,
     Traits,
     Functions,
+    Tests,
     TypeAliases,
     Unions,
     Implementations,
@@ -2182,6 +2190,7 @@ impl ItemSection {
             Statics,
             Traits,
             Functions,
+            Tests,
             TypeAliases,
             Unions,
             Implementations,
@@ -2208,6 +2217,7 @@ impl ItemSection {
             Self::Unions => "unions",
             Self::Enums => "enums",
             Self::Functions => "functions",
+            Self::Tests => "tests",
             Self::TypeAliases => "types",
             Self::Statics => "statics",
             Self::Constants => "constants",
@@ -2238,6 +2248,7 @@ impl ItemSection {
             Self::Unions => "Unions",
             Self::Enums => "Enums",
             Self::Functions => "Functions",
+            Self::Tests => "Tests",
             Self::TypeAliases => "Type Aliases",
             Self::Statics => "Statics",
             Self::Constants => "Constants",
@@ -2269,6 +2280,7 @@ fn item_ty_to_section(ty: ItemType) -> ItemSection {
         ItemType::Union => ItemSection::Unions,
         ItemType::Enum => ItemSection::Enums,
         ItemType::Function => ItemSection::Functions,
+        ItemType::Test => ItemSection::Tests,
         ItemType::TypeAlias => ItemSection::TypeAliases,
         ItemType::Static => ItemSection::Statics,
         ItemType::Constant => ItemSection::Constants,

src/librustdoc/html/render/print_item.rs

@@ -186,6 +186,7 @@ pub(super) fn print_item(cx: &mut Context<'_>, item: &clean::Item, buf: &mut Buf
             }
         }
         clean::FunctionItem(..) | clean::ForeignFunctionItem(..) => "Function ",
+        clean::TestItem(..) => "Test ",
         clean::TraitItem(..) => "Trait ",
         clean::StructItem(..) => "Struct ",
         clean::UnionItem(..) => "Union ",
@@ -254,7 +255,7 @@ pub(super) fn print_item(cx: &mut Context<'_>, item: &clean::Item, buf: &mut Buf
 
     match &*item.kind {
         clean::ModuleItem(ref m) => item_module(buf, cx, item, &m.items),
-        clean::FunctionItem(ref f) | clean::ForeignFunctionItem(ref f) => {
+        clean::FunctionItem(ref f) | clean::ForeignFunctionItem(ref f) | clean::TestItem(ref f) => {
             item_function(buf, cx, item, f)
         }
         clean::TraitItem(ref t) => item_trait(buf, cx, item, t),
@@ -331,6 +332,7 @@ fn item_module(w: &mut Buffer, cx: &mut Context<'_>, item: &clean::Item, items:
             ItemType::Static => 8,
             ItemType::Trait => 9,
             ItemType::Function => 10,
+            ItemType::Test => 11,
             ItemType::TypeAlias => 12,
             ItemType::Union => 13,
             _ => 14 + ty as u8,

src/librustdoc/html/static/js/main.js

@@ -554,6 +554,7 @@ function preLoadCss(cssUrl) {
             block("static", "static", "Statics");
             block("trait", "traits", "Traits");
             block("fn", "functions", "Functions");
+            block("test", "tests", "Tests");
             block("type", "types", "Type Aliases");
             block("union", "unions", "Unions");
             // No point, because these items don't appear in modules

src/librustdoc/json/conversions.rs

@@ -309,7 +309,9 @@ fn from_clean_item(item: clean::Item, tcx: TyCtxt<'_>) -> ItemEnum {
         StructFieldItem(f) => ItemEnum::StructField(f.into_tcx(tcx)),
         EnumItem(e) => ItemEnum::Enum(e.into_tcx(tcx)),
         VariantItem(v) => ItemEnum::Variant(v.into_tcx(tcx)),
-        FunctionItem(f) => ItemEnum::Function(from_function(f, true, header.unwrap(), tcx)),
+        FunctionItem(f) | TestItem(f) => {
+            ItemEnum::Function(from_function(f, true, header.unwrap(), tcx))
+        }
         ForeignFunctionItem(f) => ItemEnum::Function(from_function(f, false, header.unwrap(), tcx)),
         TraitItem(t) => ItemEnum::Trait((*t).into_tcx(tcx)),
         TraitAliasItem(t) => ItemEnum::TraitAlias(t.into_tcx(tcx)),
@@ -844,7 +846,7 @@ impl FromWithTcx<ItemType> for ItemKind {
             Struct => ItemKind::Struct,
             Union => ItemKind::Union,
             Enum => ItemKind::Enum,
-            Function | TyMethod | Method => ItemKind::Function,
+            Function | Test | TyMethod | Method => ItemKind::Function,
             TypeAlias => ItemKind::TypeAlias,
             OpaqueTy => ItemKind::OpaqueTy,
             Static => ItemKind::Static,

src/librustdoc/passes/stripper.rs

@@ -55,6 +55,7 @@ impl<'a, 'tcx> DocFolder for Stripper<'a, 'tcx> {
             | clean::EnumItem(..)
             | clean::TraitItem(..)
             | clean::FunctionItem(..)
+            | clean::TestItem(..)
             | clean::VariantItem(..)
             | clean::ForeignFunctionItem(..)
             | clean::ForeignStaticItem(..)

src/librustdoc/visit.rs

@@ -25,6 +25,7 @@ pub(crate) trait DocVisitor: Sized {
             ExternCrateItem { src: _ }
             | ImportItem(_)
             | FunctionItem(_)
+            | TestItem(_)
             | TypeAliasItem(_)
             | OpaqueTyItem(_)
             | StaticItem(_)