| //! These from impls are used to create the JSON types which get serialized. They're very close to |
| //! the `clean` types but with some fields removed or stringified to simplify the output and not |
| //! expose unstable compiler internals. |
| |
| #![allow(rustc::default_hash_types)] |
| |
| use std::convert::From; |
| use std::fmt; |
| |
| use rustc_ast::ast; |
| use rustc_hir::{def::CtorKind, def_id::DefId}; |
| use rustc_middle::ty::{self, TyCtxt}; |
| use rustc_span::{Pos, Symbol}; |
| use rustc_target::spec::abi::Abi as RustcAbi; |
| |
| use rustdoc_json_types::*; |
| |
| use crate::clean::utils::print_const_expr; |
| use crate::clean::{self, ItemId}; |
| use crate::formats::item_type::ItemType; |
| use crate::json::JsonRenderer; |
| use crate::passes::collect_intra_doc_links::UrlFragment; |
| |
| impl JsonRenderer<'_> { |
| pub(super) fn convert_item(&self, item: clean::Item) -> Option<Item> { |
| let deprecation = item.deprecation(self.tcx); |
| let links = self |
| .cache |
| .intra_doc_links |
| .get(&item.item_id) |
| .into_iter() |
| .flatten() |
| .map(|clean::ItemLink { link, page_id, fragment, .. }| { |
| let id = match fragment { |
| Some(UrlFragment::Item(frag_id)) => *frag_id, |
| // FIXME: Pass the `UserWritten` segment to JSON consumer. |
| Some(UrlFragment::UserWritten(_)) | None => *page_id, |
| }; |
| |
| (link.clone(), from_item_id(id.into(), self.tcx)) |
| }) |
| .collect(); |
| let docs = item.attrs.collapsed_doc_value(); |
| let attrs = item |
| .attrs |
| .other_attrs |
| .iter() |
| .map(rustc_ast_pretty::pprust::attribute_to_string) |
| .collect(); |
| let span = item.span(self.tcx); |
| let clean::Item { name, attrs: _, kind: _, visibility, item_id, cfg: _ } = item; |
| let inner = match *item.kind { |
| clean::KeywordItem => return None, |
| clean::StrippedItem(ref inner) => { |
| match &**inner { |
| // We document stripped modules as with `Module::is_stripped` set to |
| // `true`, to prevent contained items from being orphaned for downstream users, |
| // as JSON does no inlining. |
| clean::ModuleItem(_) |
| if self.imported_items.contains(&item_id.expect_def_id()) => |
| { |
| from_clean_item(item, self.tcx) |
| } |
| _ => return None, |
| } |
| } |
| _ => from_clean_item(item, self.tcx), |
| }; |
| Some(Item { |
| id: from_item_id_with_name(item_id, self.tcx, name), |
| crate_id: item_id.krate().as_u32(), |
| name: name.map(|sym| sym.to_string()), |
| span: span.and_then(|span| self.convert_span(span)), |
| visibility: self.convert_visibility(visibility), |
| docs, |
| attrs, |
| deprecation: deprecation.map(from_deprecation), |
| inner, |
| links, |
| }) |
| } |
| |
| fn convert_span(&self, span: clean::Span) -> Option<Span> { |
| match span.filename(self.sess()) { |
| rustc_span::FileName::Real(name) => { |
| if let Some(local_path) = name.into_local_path() { |
| let hi = span.hi(self.sess()); |
| let lo = span.lo(self.sess()); |
| Some(Span { |
| filename: local_path, |
| begin: (lo.line, lo.col.to_usize()), |
| end: (hi.line, hi.col.to_usize()), |
| }) |
| } else { |
| None |
| } |
| } |
| _ => None, |
| } |
| } |
| |
| fn convert_visibility(&self, v: clean::Visibility) -> Visibility { |
| use clean::Visibility::*; |
| match v { |
| Public => Visibility::Public, |
| Inherited => Visibility::Default, |
| Restricted(did) if did.is_crate_root() => Visibility::Crate, |
| Restricted(did) => Visibility::Restricted { |
| parent: from_item_id(did.into(), self.tcx), |
| path: self.tcx.def_path(did).to_string_no_crate_verbose(), |
| }, |
| } |
| } |
| } |
| |
| pub(crate) trait FromWithTcx<T> { |
| fn from_tcx(f: T, tcx: TyCtxt<'_>) -> Self; |
| } |
| |
| pub(crate) trait IntoWithTcx<T> { |
| fn into_tcx(self, tcx: TyCtxt<'_>) -> T; |
| } |
| |
| impl<T, U> IntoWithTcx<U> for T |
| where |
| U: FromWithTcx<T>, |
| { |
| fn into_tcx(self, tcx: TyCtxt<'_>) -> U { |
| U::from_tcx(self, tcx) |
| } |
| } |
| |
| impl<I, T, U> FromWithTcx<I> for Vec<U> |
| where |
| I: IntoIterator<Item = T>, |
| U: FromWithTcx<T>, |
| { |
| fn from_tcx(f: I, tcx: TyCtxt<'_>) -> Vec<U> { |
| f.into_iter().map(|x| x.into_tcx(tcx)).collect() |
| } |
| } |
| |
| pub(crate) fn from_deprecation(deprecation: rustc_attr::Deprecation) -> Deprecation { |
| #[rustfmt::skip] |
| let rustc_attr::Deprecation { since, note, is_since_rustc_version: _, suggestion: _ } = deprecation; |
| Deprecation { since: since.map(|s| s.to_string()), note: note.map(|s| s.to_string()) } |
| } |
| |
| impl FromWithTcx<clean::GenericArgs> for GenericArgs { |
| fn from_tcx(args: clean::GenericArgs, tcx: TyCtxt<'_>) -> Self { |
| use clean::GenericArgs::*; |
| match args { |
| AngleBracketed { args, bindings } => GenericArgs::AngleBracketed { |
| args: args.into_vec().into_tcx(tcx), |
| bindings: bindings.into_tcx(tcx), |
| }, |
| Parenthesized { inputs, output } => GenericArgs::Parenthesized { |
| inputs: inputs.into_vec().into_tcx(tcx), |
| output: output.map(|a| (*a).into_tcx(tcx)), |
| }, |
| } |
| } |
| } |
| |
| impl FromWithTcx<clean::GenericArg> for GenericArg { |
| fn from_tcx(arg: clean::GenericArg, tcx: TyCtxt<'_>) -> Self { |
| use clean::GenericArg::*; |
| match arg { |
| Lifetime(l) => GenericArg::Lifetime(convert_lifetime(l)), |
| Type(t) => GenericArg::Type(t.into_tcx(tcx)), |
| Const(box c) => GenericArg::Const(c.into_tcx(tcx)), |
| Infer => GenericArg::Infer, |
| } |
| } |
| } |
| |
| impl FromWithTcx<clean::Constant> for Constant { |
| fn from_tcx(constant: clean::Constant, tcx: TyCtxt<'_>) -> Self { |
| let expr = constant.expr(tcx); |
| let value = constant.value(tcx); |
| let is_literal = constant.is_literal(tcx); |
| Constant { type_: constant.type_.into_tcx(tcx), expr, value, is_literal } |
| } |
| } |
| |
| impl FromWithTcx<clean::TypeBinding> for TypeBinding { |
| fn from_tcx(binding: clean::TypeBinding, tcx: TyCtxt<'_>) -> Self { |
| TypeBinding { |
| name: binding.assoc.name.to_string(), |
| args: binding.assoc.args.into_tcx(tcx), |
| binding: binding.kind.into_tcx(tcx), |
| } |
| } |
| } |
| |
| impl FromWithTcx<clean::TypeBindingKind> for TypeBindingKind { |
| fn from_tcx(kind: clean::TypeBindingKind, tcx: TyCtxt<'_>) -> Self { |
| use clean::TypeBindingKind::*; |
| match kind { |
| Equality { term } => TypeBindingKind::Equality(term.into_tcx(tcx)), |
| Constraint { bounds } => TypeBindingKind::Constraint(bounds.into_tcx(tcx)), |
| } |
| } |
| } |
| |
| /// It generates an ID as follows: |
| /// |
| /// `CRATE_ID:ITEM_ID[:NAME_ID]` (if there is no name, NAME_ID is not generated). |
| pub(crate) fn from_item_id(item_id: ItemId, tcx: TyCtxt<'_>) -> Id { |
| from_item_id_with_name(item_id, tcx, None) |
| } |
| |
| // FIXME: this function (and appending the name at the end of the ID) should be removed when |
| // reexports are not inlined anymore for json format. It should be done in #93518. |
| pub(crate) fn from_item_id_with_name(item_id: ItemId, tcx: TyCtxt<'_>, name: Option<Symbol>) -> Id { |
| struct DisplayDefId<'a>(DefId, TyCtxt<'a>, Option<Symbol>); |
| |
| impl<'a> fmt::Display for DisplayDefId<'a> { |
| fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { |
| let name = match self.2 { |
| Some(name) => format!(":{}", name.as_u32()), |
| None => self |
| .1 |
| .opt_item_name(self.0) |
| .map(|n| format!(":{}", n.as_u32())) |
| .unwrap_or_default(), |
| }; |
| write!(f, "{}:{}{}", self.0.krate.as_u32(), u32::from(self.0.index), name) |
| } |
| } |
| |
| match item_id { |
| ItemId::DefId(did) => Id(format!("{}", DisplayDefId(did, tcx, name))), |
| ItemId::Blanket { for_, impl_id } => { |
| Id(format!("b:{}-{}", DisplayDefId(impl_id, tcx, None), DisplayDefId(for_, tcx, name))) |
| } |
| ItemId::Auto { for_, trait_ } => { |
| Id(format!("a:{}-{}", DisplayDefId(trait_, tcx, None), DisplayDefId(for_, tcx, name))) |
| } |
| ItemId::Primitive(ty, krate) => Id(format!("p:{}:{}", krate.as_u32(), ty.as_sym())), |
| } |
| } |
| |
| fn from_clean_item(item: clean::Item, tcx: TyCtxt<'_>) -> ItemEnum { |
| use clean::ItemKind::*; |
| let name = item.name; |
| let is_crate = item.is_crate(); |
| let header = item.fn_header(tcx); |
| |
| match *item.kind { |
| ModuleItem(m) => { |
| ItemEnum::Module(Module { is_crate, items: ids(m.items, tcx), is_stripped: false }) |
| } |
| ImportItem(i) => ItemEnum::Import(i.into_tcx(tcx)), |
| StructItem(s) => ItemEnum::Struct(s.into_tcx(tcx)), |
| UnionItem(u) => ItemEnum::Union(u.into_tcx(tcx)), |
| 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, header.unwrap(), tcx)), |
| ForeignFunctionItem(f) => ItemEnum::Function(from_function(f, header.unwrap(), tcx)), |
| TraitItem(t) => ItemEnum::Trait((*t).into_tcx(tcx)), |
| TraitAliasItem(t) => ItemEnum::TraitAlias(t.into_tcx(tcx)), |
| MethodItem(m, _) => ItemEnum::Method(from_function_method(m, true, header.unwrap(), tcx)), |
| TyMethodItem(m) => ItemEnum::Method(from_function_method(m, false, header.unwrap(), tcx)), |
| ImplItem(i) => ItemEnum::Impl((*i).into_tcx(tcx)), |
| StaticItem(s) => ItemEnum::Static(s.into_tcx(tcx)), |
| ForeignStaticItem(s) => ItemEnum::Static(s.into_tcx(tcx)), |
| ForeignTypeItem => ItemEnum::ForeignType, |
| TypedefItem(t) => ItemEnum::Typedef(t.into_tcx(tcx)), |
| OpaqueTyItem(t) => ItemEnum::OpaqueTy(t.into_tcx(tcx)), |
| ConstantItem(c) => ItemEnum::Constant(c.into_tcx(tcx)), |
| MacroItem(m) => ItemEnum::Macro(m.source), |
| ProcMacroItem(m) => ItemEnum::ProcMacro(m.into_tcx(tcx)), |
| PrimitiveItem(p) => { |
| ItemEnum::Primitive(Primitive { |
| name: p.as_sym().to_string(), |
| impls: Vec::new(), // Added in JsonRenderer::item |
| }) |
| } |
| TyAssocConstItem(ty) => ItemEnum::AssocConst { type_: ty.into_tcx(tcx), default: None }, |
| AssocConstItem(ty, default) => { |
| ItemEnum::AssocConst { type_: ty.into_tcx(tcx), default: Some(default.expr(tcx)) } |
| } |
| TyAssocTypeItem(g, b) => ItemEnum::AssocType { |
| generics: (*g).into_tcx(tcx), |
| bounds: b.into_tcx(tcx), |
| default: None, |
| }, |
| AssocTypeItem(t, b) => ItemEnum::AssocType { |
| generics: t.generics.into_tcx(tcx), |
| bounds: b.into_tcx(tcx), |
| default: Some(t.item_type.unwrap_or(t.type_).into_tcx(tcx)), |
| }, |
| // `convert_item` early returns `None` for stripped items and keywords. |
| KeywordItem => unreachable!(), |
| StrippedItem(inner) => { |
| match *inner { |
| ModuleItem(m) => ItemEnum::Module(Module { |
| is_crate, |
| items: ids(m.items, tcx), |
| is_stripped: true, |
| }), |
| // `convert_item` early returns `None` for stripped items we're not including |
| _ => unreachable!(), |
| } |
| } |
| ExternCrateItem { ref src } => ItemEnum::ExternCrate { |
| name: name.as_ref().unwrap().to_string(), |
| rename: src.map(|x| x.to_string()), |
| }, |
| } |
| } |
| |
| impl FromWithTcx<clean::Struct> for Struct { |
| fn from_tcx(struct_: clean::Struct, tcx: TyCtxt<'_>) -> Self { |
| let fields_stripped = struct_.has_stripped_entries(); |
| let clean::Struct { struct_type, generics, fields } = struct_; |
| |
| let kind = match struct_type { |
| CtorKind::Fn => StructKind::Tuple(ids_keeping_stripped(fields, tcx)), |
| CtorKind::Const => { |
| assert!(fields.is_empty()); |
| StructKind::Unit |
| } |
| CtorKind::Fictive => StructKind::Plain { fields: ids(fields, tcx), fields_stripped }, |
| }; |
| |
| Struct { |
| kind, |
| generics: generics.into_tcx(tcx), |
| impls: Vec::new(), // Added in JsonRenderer::item |
| } |
| } |
| } |
| |
| impl FromWithTcx<clean::Union> for Union { |
| fn from_tcx(union_: clean::Union, tcx: TyCtxt<'_>) -> Self { |
| let fields_stripped = union_.has_stripped_entries(); |
| let clean::Union { generics, fields } = union_; |
| Union { |
| generics: generics.into_tcx(tcx), |
| fields_stripped, |
| fields: ids(fields, tcx), |
| impls: Vec::new(), // Added in JsonRenderer::item |
| } |
| } |
| } |
| |
| pub(crate) fn from_fn_header(header: &rustc_hir::FnHeader) -> Header { |
| Header { |
| async_: header.is_async(), |
| const_: header.is_const(), |
| unsafe_: header.is_unsafe(), |
| abi: convert_abi(header.abi), |
| } |
| } |
| |
| fn convert_abi(a: RustcAbi) -> Abi { |
| match a { |
| RustcAbi::Rust => Abi::Rust, |
| RustcAbi::C { unwind } => Abi::C { unwind }, |
| RustcAbi::Cdecl { unwind } => Abi::Cdecl { unwind }, |
| RustcAbi::Stdcall { unwind } => Abi::Stdcall { unwind }, |
| RustcAbi::Fastcall { unwind } => Abi::Fastcall { unwind }, |
| RustcAbi::Aapcs { unwind } => Abi::Aapcs { unwind }, |
| RustcAbi::Win64 { unwind } => Abi::Win64 { unwind }, |
| RustcAbi::SysV64 { unwind } => Abi::SysV64 { unwind }, |
| RustcAbi::System { unwind } => Abi::System { unwind }, |
| _ => Abi::Other(a.to_string()), |
| } |
| } |
| |
| fn convert_lifetime(l: clean::Lifetime) -> String { |
| l.0.to_string() |
| } |
| |
| impl FromWithTcx<clean::Generics> for Generics { |
| fn from_tcx(generics: clean::Generics, tcx: TyCtxt<'_>) -> Self { |
| Generics { |
| params: generics.params.into_tcx(tcx), |
| where_predicates: generics.where_predicates.into_tcx(tcx), |
| } |
| } |
| } |
| |
| impl FromWithTcx<clean::GenericParamDef> for GenericParamDef { |
| fn from_tcx(generic_param: clean::GenericParamDef, tcx: TyCtxt<'_>) -> Self { |
| GenericParamDef { |
| name: generic_param.name.to_string(), |
| kind: generic_param.kind.into_tcx(tcx), |
| } |
| } |
| } |
| |
| impl FromWithTcx<clean::GenericParamDefKind> for GenericParamDefKind { |
| fn from_tcx(kind: clean::GenericParamDefKind, tcx: TyCtxt<'_>) -> Self { |
| use clean::GenericParamDefKind::*; |
| match kind { |
| Lifetime { outlives } => GenericParamDefKind::Lifetime { |
| outlives: outlives.into_iter().map(convert_lifetime).collect(), |
| }, |
| Type { did: _, bounds, default, synthetic } => GenericParamDefKind::Type { |
| bounds: bounds.into_tcx(tcx), |
| default: default.map(|x| (*x).into_tcx(tcx)), |
| synthetic, |
| }, |
| Const { did: _, ty, default } => GenericParamDefKind::Const { |
| type_: (*ty).into_tcx(tcx), |
| default: default.map(|x| *x), |
| }, |
| } |
| } |
| } |
| |
| impl FromWithTcx<clean::WherePredicate> for WherePredicate { |
| fn from_tcx(predicate: clean::WherePredicate, tcx: TyCtxt<'_>) -> Self { |
| use clean::WherePredicate::*; |
| match predicate { |
| BoundPredicate { ty, bounds, bound_params } => WherePredicate::BoundPredicate { |
| type_: ty.into_tcx(tcx), |
| bounds: bounds.into_tcx(tcx), |
| generic_params: bound_params |
| .into_iter() |
| .map(|x| GenericParamDef { |
| name: x.0.to_string(), |
| kind: GenericParamDefKind::Lifetime { outlives: vec![] }, |
| }) |
| .collect(), |
| }, |
| RegionPredicate { lifetime, bounds } => WherePredicate::RegionPredicate { |
| lifetime: convert_lifetime(lifetime), |
| bounds: bounds.into_tcx(tcx), |
| }, |
| // FIXME(fmease): Convert bound parameters as well. |
| EqPredicate { lhs, rhs, bound_params: _ } => { |
| WherePredicate::EqPredicate { lhs: (*lhs).into_tcx(tcx), rhs: (*rhs).into_tcx(tcx) } |
| } |
| } |
| } |
| } |
| |
| impl FromWithTcx<clean::GenericBound> for GenericBound { |
| fn from_tcx(bound: clean::GenericBound, tcx: TyCtxt<'_>) -> Self { |
| use clean::GenericBound::*; |
| match bound { |
| TraitBound(clean::PolyTrait { trait_, generic_params }, modifier) => { |
| GenericBound::TraitBound { |
| trait_: trait_.into_tcx(tcx), |
| generic_params: generic_params.into_tcx(tcx), |
| modifier: from_trait_bound_modifier(modifier), |
| } |
| } |
| Outlives(lifetime) => GenericBound::Outlives(convert_lifetime(lifetime)), |
| } |
| } |
| } |
| |
| pub(crate) fn from_trait_bound_modifier( |
| modifier: rustc_hir::TraitBoundModifier, |
| ) -> TraitBoundModifier { |
| use rustc_hir::TraitBoundModifier::*; |
| match modifier { |
| None => TraitBoundModifier::None, |
| Maybe => TraitBoundModifier::Maybe, |
| MaybeConst => TraitBoundModifier::MaybeConst, |
| } |
| } |
| |
| impl FromWithTcx<clean::Type> for Type { |
| fn from_tcx(ty: clean::Type, tcx: TyCtxt<'_>) -> Self { |
| use clean::Type::{ |
| Array, BareFunction, BorrowedRef, Generic, ImplTrait, Infer, Primitive, QPath, |
| RawPointer, Slice, Tuple, |
| }; |
| |
| match ty { |
| clean::Type::Path { path } => Type::ResolvedPath(path.into_tcx(tcx)), |
| clean::Type::DynTrait(bounds, lt) => Type::DynTrait(DynTrait { |
| lifetime: lt.map(convert_lifetime), |
| traits: bounds.into_tcx(tcx), |
| }), |
| Generic(s) => Type::Generic(s.to_string()), |
| Primitive(p) => Type::Primitive(p.as_sym().to_string()), |
| BareFunction(f) => Type::FunctionPointer(Box::new((*f).into_tcx(tcx))), |
| Tuple(t) => Type::Tuple(t.into_tcx(tcx)), |
| Slice(t) => Type::Slice(Box::new((*t).into_tcx(tcx))), |
| Array(t, s) => Type::Array { type_: Box::new((*t).into_tcx(tcx)), len: s }, |
| ImplTrait(g) => Type::ImplTrait(g.into_tcx(tcx)), |
| Infer => Type::Infer, |
| RawPointer(mutability, type_) => Type::RawPointer { |
| mutable: mutability == ast::Mutability::Mut, |
| type_: Box::new((*type_).into_tcx(tcx)), |
| }, |
| BorrowedRef { lifetime, mutability, type_ } => Type::BorrowedRef { |
| lifetime: lifetime.map(convert_lifetime), |
| mutable: mutability == ast::Mutability::Mut, |
| type_: Box::new((*type_).into_tcx(tcx)), |
| }, |
| QPath(box clean::QPathData { assoc, self_type, trait_, .. }) => Type::QualifiedPath { |
| name: assoc.name.to_string(), |
| args: Box::new(assoc.args.into_tcx(tcx)), |
| self_type: Box::new(self_type.into_tcx(tcx)), |
| trait_: trait_.into_tcx(tcx), |
| }, |
| } |
| } |
| } |
| |
| impl FromWithTcx<clean::Path> for Path { |
| fn from_tcx(path: clean::Path, tcx: TyCtxt<'_>) -> Path { |
| Path { |
| name: path.whole_name(), |
| id: from_item_id(path.def_id().into(), tcx), |
| args: path.segments.last().map(|args| Box::new(args.clone().args.into_tcx(tcx))), |
| } |
| } |
| } |
| |
| impl FromWithTcx<clean::Term> for Term { |
| fn from_tcx(term: clean::Term, tcx: TyCtxt<'_>) -> Term { |
| match term { |
| clean::Term::Type(ty) => Term::Type(FromWithTcx::from_tcx(ty, tcx)), |
| clean::Term::Constant(c) => Term::Constant(FromWithTcx::from_tcx(c, tcx)), |
| } |
| } |
| } |
| |
| impl FromWithTcx<clean::BareFunctionDecl> for FunctionPointer { |
| fn from_tcx(bare_decl: clean::BareFunctionDecl, tcx: TyCtxt<'_>) -> Self { |
| let clean::BareFunctionDecl { unsafety, generic_params, decl, abi } = bare_decl; |
| FunctionPointer { |
| header: Header { |
| unsafe_: matches!(unsafety, rustc_hir::Unsafety::Unsafe), |
| const_: false, |
| async_: false, |
| abi: convert_abi(abi), |
| }, |
| generic_params: generic_params.into_tcx(tcx), |
| decl: decl.into_tcx(tcx), |
| } |
| } |
| } |
| |
| impl FromWithTcx<clean::FnDecl> for FnDecl { |
| fn from_tcx(decl: clean::FnDecl, tcx: TyCtxt<'_>) -> Self { |
| let clean::FnDecl { inputs, output, c_variadic } = decl; |
| FnDecl { |
| inputs: inputs |
| .values |
| .into_iter() |
| .map(|arg| (arg.name.to_string(), arg.type_.into_tcx(tcx))) |
| .collect(), |
| output: match output { |
| clean::FnRetTy::Return(t) => Some(t.into_tcx(tcx)), |
| clean::FnRetTy::DefaultReturn => None, |
| }, |
| c_variadic, |
| } |
| } |
| } |
| |
| impl FromWithTcx<clean::Trait> for Trait { |
| fn from_tcx(trait_: clean::Trait, tcx: TyCtxt<'_>) -> Self { |
| let is_auto = trait_.is_auto(tcx); |
| let is_unsafe = trait_.unsafety(tcx) == rustc_hir::Unsafety::Unsafe; |
| let clean::Trait { items, generics, bounds, .. } = trait_; |
| Trait { |
| is_auto, |
| is_unsafe, |
| items: ids(items, tcx), |
| generics: generics.into_tcx(tcx), |
| bounds: bounds.into_tcx(tcx), |
| implementations: Vec::new(), // Added in JsonRenderer::item |
| } |
| } |
| } |
| |
| impl FromWithTcx<clean::PolyTrait> for PolyTrait { |
| fn from_tcx( |
| clean::PolyTrait { trait_, generic_params }: clean::PolyTrait, |
| tcx: TyCtxt<'_>, |
| ) -> Self { |
| PolyTrait { trait_: trait_.into_tcx(tcx), generic_params: generic_params.into_tcx(tcx) } |
| } |
| } |
| |
| impl FromWithTcx<clean::Impl> for Impl { |
| fn from_tcx(impl_: clean::Impl, tcx: TyCtxt<'_>) -> Self { |
| let provided_trait_methods = impl_.provided_trait_methods(tcx); |
| let clean::Impl { unsafety, generics, trait_, for_, items, polarity, kind } = impl_; |
| // FIXME: use something like ImplKind in JSON? |
| let (synthetic, blanket_impl) = match kind { |
| clean::ImplKind::Normal | clean::ImplKind::FakeVaradic => (false, None), |
| clean::ImplKind::Auto => (true, None), |
| clean::ImplKind::Blanket(ty) => (false, Some(*ty)), |
| }; |
| let negative_polarity = match polarity { |
| ty::ImplPolarity::Positive | ty::ImplPolarity::Reservation => false, |
| ty::ImplPolarity::Negative => true, |
| }; |
| Impl { |
| is_unsafe: unsafety == rustc_hir::Unsafety::Unsafe, |
| generics: generics.into_tcx(tcx), |
| provided_trait_methods: provided_trait_methods |
| .into_iter() |
| .map(|x| x.to_string()) |
| .collect(), |
| trait_: trait_.map(|path| path.into_tcx(tcx)), |
| for_: for_.into_tcx(tcx), |
| items: ids(items, tcx), |
| negative: negative_polarity, |
| synthetic, |
| blanket_impl: blanket_impl.map(|x| x.into_tcx(tcx)), |
| } |
| } |
| } |
| |
| pub(crate) fn from_function( |
| function: Box<clean::Function>, |
| header: rustc_hir::FnHeader, |
| tcx: TyCtxt<'_>, |
| ) -> Function { |
| let clean::Function { decl, generics } = *function; |
| Function { |
| decl: decl.into_tcx(tcx), |
| generics: generics.into_tcx(tcx), |
| header: from_fn_header(&header), |
| } |
| } |
| |
| pub(crate) fn from_function_method( |
| function: Box<clean::Function>, |
| has_body: bool, |
| header: rustc_hir::FnHeader, |
| tcx: TyCtxt<'_>, |
| ) -> Method { |
| let clean::Function { decl, generics } = *function; |
| Method { |
| decl: decl.into_tcx(tcx), |
| generics: generics.into_tcx(tcx), |
| header: from_fn_header(&header), |
| has_body, |
| } |
| } |
| |
| impl FromWithTcx<clean::Enum> for Enum { |
| fn from_tcx(enum_: clean::Enum, tcx: TyCtxt<'_>) -> Self { |
| let variants_stripped = enum_.has_stripped_entries(); |
| let clean::Enum { variants, generics } = enum_; |
| Enum { |
| generics: generics.into_tcx(tcx), |
| variants_stripped, |
| variants: ids(variants, tcx), |
| impls: Vec::new(), // Added in JsonRenderer::item |
| } |
| } |
| } |
| |
| impl FromWithTcx<clean::Variant> for Variant { |
| fn from_tcx(variant: clean::Variant, tcx: TyCtxt<'_>) -> Self { |
| use clean::Variant::*; |
| match variant { |
| CLike(disr) => Variant::Plain(disr.map(|disr| disr.into_tcx(tcx))), |
| Tuple(fields) => Variant::Tuple(ids_keeping_stripped(fields, tcx)), |
| Struct(s) => Variant::Struct { |
| fields_stripped: s.has_stripped_entries(), |
| fields: ids(s.fields, tcx), |
| }, |
| } |
| } |
| } |
| |
| impl FromWithTcx<clean::Discriminant> for Discriminant { |
| fn from_tcx(disr: clean::Discriminant, tcx: TyCtxt<'_>) -> Self { |
| Discriminant { |
| // expr is only none if going throught the inlineing path, which gets |
| // `rustc_middle` types, not `rustc_hir`, but because JSON never inlines |
| // the expr is always some. |
| expr: disr.expr(tcx).unwrap(), |
| value: disr.value(tcx), |
| } |
| } |
| } |
| |
| impl FromWithTcx<clean::Import> for Import { |
| fn from_tcx(import: clean::Import, tcx: TyCtxt<'_>) -> Self { |
| use clean::ImportKind::*; |
| let (name, glob) = match import.kind { |
| Simple(s) => (s.to_string(), false), |
| Glob => ( |
| import.source.path.last_opt().unwrap_or_else(|| Symbol::intern("*")).to_string(), |
| true, |
| ), |
| }; |
| Import { |
| source: import.source.path.whole_name(), |
| name, |
| id: import.source.did.map(ItemId::from).map(|i| from_item_id(i, tcx)), |
| glob, |
| } |
| } |
| } |
| |
| impl FromWithTcx<clean::ProcMacro> for ProcMacro { |
| fn from_tcx(mac: clean::ProcMacro, _tcx: TyCtxt<'_>) -> Self { |
| ProcMacro { |
| kind: from_macro_kind(mac.kind), |
| helpers: mac.helpers.iter().map(|x| x.to_string()).collect(), |
| } |
| } |
| } |
| |
| pub(crate) fn from_macro_kind(kind: rustc_span::hygiene::MacroKind) -> MacroKind { |
| use rustc_span::hygiene::MacroKind::*; |
| match kind { |
| Bang => MacroKind::Bang, |
| Attr => MacroKind::Attr, |
| Derive => MacroKind::Derive, |
| } |
| } |
| |
| impl FromWithTcx<Box<clean::Typedef>> for Typedef { |
| fn from_tcx(typedef: Box<clean::Typedef>, tcx: TyCtxt<'_>) -> Self { |
| let clean::Typedef { type_, generics, item_type: _ } = *typedef; |
| Typedef { type_: type_.into_tcx(tcx), generics: generics.into_tcx(tcx) } |
| } |
| } |
| |
| impl FromWithTcx<clean::OpaqueTy> for OpaqueTy { |
| fn from_tcx(opaque: clean::OpaqueTy, tcx: TyCtxt<'_>) -> Self { |
| OpaqueTy { bounds: opaque.bounds.into_tcx(tcx), generics: opaque.generics.into_tcx(tcx) } |
| } |
| } |
| |
| impl FromWithTcx<clean::Static> for Static { |
| fn from_tcx(stat: clean::Static, tcx: TyCtxt<'_>) -> Self { |
| Static { |
| type_: stat.type_.into_tcx(tcx), |
| mutable: stat.mutability == ast::Mutability::Mut, |
| expr: stat.expr.map(|e| print_const_expr(tcx, e)).unwrap_or_default(), |
| } |
| } |
| } |
| |
| impl FromWithTcx<clean::TraitAlias> for TraitAlias { |
| fn from_tcx(alias: clean::TraitAlias, tcx: TyCtxt<'_>) -> Self { |
| TraitAlias { generics: alias.generics.into_tcx(tcx), params: alias.bounds.into_tcx(tcx) } |
| } |
| } |
| |
| impl FromWithTcx<ItemType> for ItemKind { |
| fn from_tcx(kind: ItemType, _tcx: TyCtxt<'_>) -> Self { |
| use ItemType::*; |
| match kind { |
| Module => ItemKind::Module, |
| ExternCrate => ItemKind::ExternCrate, |
| Import => ItemKind::Import, |
| Struct => ItemKind::Struct, |
| Union => ItemKind::Union, |
| Enum => ItemKind::Enum, |
| Function => ItemKind::Function, |
| Typedef => ItemKind::Typedef, |
| OpaqueTy => ItemKind::OpaqueTy, |
| Static => ItemKind::Static, |
| Constant => ItemKind::Constant, |
| Trait => ItemKind::Trait, |
| Impl => ItemKind::Impl, |
| TyMethod | Method => ItemKind::Method, |
| StructField => ItemKind::StructField, |
| Variant => ItemKind::Variant, |
| Macro => ItemKind::Macro, |
| Primitive => ItemKind::Primitive, |
| AssocConst => ItemKind::AssocConst, |
| AssocType => ItemKind::AssocType, |
| ForeignType => ItemKind::ForeignType, |
| Keyword => ItemKind::Keyword, |
| TraitAlias => ItemKind::TraitAlias, |
| ProcAttribute => ItemKind::ProcAttribute, |
| ProcDerive => ItemKind::ProcDerive, |
| } |
| } |
| } |
| |
| fn ids(items: impl IntoIterator<Item = clean::Item>, tcx: TyCtxt<'_>) -> Vec<Id> { |
| items |
| .into_iter() |
| .filter(|x| !x.is_stripped() && !x.is_keyword()) |
| .map(|i| from_item_id_with_name(i.item_id, tcx, i.name)) |
| .collect() |
| } |
| |
| fn ids_keeping_stripped( |
| items: impl IntoIterator<Item = clean::Item>, |
| tcx: TyCtxt<'_>, |
| ) -> Vec<Option<Id>> { |
| items |
| .into_iter() |
| .map(|i| { |
| if !i.is_stripped() && !i.is_keyword() { |
| Some(from_item_id_with_name(i.item_id, tcx, i.name)) |
| } else { |
| None |
| } |
| }) |
| .collect() |
| } |
