Auto merge of #47657 - algesten:save-analysis-impls, r=nrc
Emit data::Impl in save-analysis As discussed on [internals.rust-lang](https://internals.rust-lang.org/t/rustdoc2-rls-analysis-and-the-compiler-help-wanted/6592/5), this PR emits `rls-data::Impl` in the save-analysis. A number of questions are outstanding: - [x] A few `???` around row 356. We need to discuss what goes here, if anything. - [ ] ~~Deriving `id` for impl using hashing. Is this going to clash with rustc defids?~~ - [ ] ~~Deriving `id` for impl using hashing. Is the conversion from 64 bit -> 32 bit problematic?~~ - [x] Need a new rls-data with an `id` field in `Impl` struct. - [ ] ~~Need a new rls-data which `derive` `Hash` for `ImplKind` enum.~~
This commit is contained in:
commit
0bb8935136
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@ -1685,6 +1685,15 @@ dependencies = [
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"serde_derive 1.0.27 (registry+https://github.com/rust-lang/crates.io-index)",
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]
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[[package]]
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name = "rls-data"
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version = "0.15.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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dependencies = [
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"rls-span 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
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"rustc-serialize 0.3.24 (registry+https://github.com/rust-lang/crates.io-index)",
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]
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[[package]]
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name = "rls-rustc"
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version = "0.2.1"
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@ -2122,7 +2131,7 @@ name = "rustc_save_analysis"
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version = "0.0.0"
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dependencies = [
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"log 0.4.1 (registry+https://github.com/rust-lang/crates.io-index)",
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"rls-data 0.14.0 (registry+https://github.com/rust-lang/crates.io-index)",
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"rls-data 0.15.0 (registry+https://github.com/rust-lang/crates.io-index)",
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"rls-span 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
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"rustc 0.0.0",
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"rustc-serialize 0.3.24 (registry+https://github.com/rust-lang/crates.io-index)",
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@ -3107,6 +3116,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
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"checksum regex-syntax 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)" = "8e931c58b93d86f080c734bfd2bce7dd0079ae2331235818133c8be7f422e20e"
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"checksum rls-analysis 0.10.0 (registry+https://github.com/rust-lang/crates.io-index)" = "38841e3c5271715a574ac220d9b408b59ed9e2626909c3bc54b5853b4eaadb7b"
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"checksum rls-data 0.14.0 (registry+https://github.com/rust-lang/crates.io-index)" = "8024f1feaca72d0aa4ae1e2a8d454a31b9a33ed02f8d0e9c8559bf53c267ec3c"
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"checksum rls-data 0.15.0 (registry+https://github.com/rust-lang/crates.io-index)" = "bea04462e94b5512a78499837eecb7db182ff082144cd1b4bc32ef5d43de6510"
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"checksum rls-rustc 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "85cfb9dde19e313da3e47738008f8a472e470cc42d910b71595a9238494701f2"
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"checksum rls-span 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "5d7c7046dc6a92f2ae02ed302746db4382e75131b9ce20ce967259f6b5867a6a"
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"checksum rls-vfs 0.4.4 (registry+https://github.com/rust-lang/crates.io-index)" = "ffd34691a510938bb67fe0444fb363103c73ffb31c121d1e16bc92d8945ea8ff"
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@ -15,7 +15,7 @@ rustc_data_structures = { path = "../librustc_data_structures" }
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rustc_typeck = { path = "../librustc_typeck" }
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syntax = { path = "../libsyntax" }
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syntax_pos = { path = "../libsyntax_pos" }
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rls-data = "0.14"
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rls-data = "0.15"
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rls-span = "0.4"
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# FIXME(#40527) should move rustc serialize out of tree
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rustc-serialize = "0.3"
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@ -770,8 +770,12 @@ impl<'l, 'tcx: 'l, 'll, O: DumpOutput + 'll> DumpVisitor<'l, 'tcx, 'll, O> {
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impl_items: &'l [ast::ImplItem],
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) {
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if let Some(impl_data) = self.save_ctxt.get_item_data(item) {
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down_cast_data!(impl_data, RelationData, item.span);
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self.dumper.dump_relation(impl_data);
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if let super::Data::RelationData(rel, imp) = impl_data {
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self.dumper.dump_relation(rel);
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self.dumper.dump_impl(imp);
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} else {
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span_bug!(item.span, "unexpected data kind: {:?}", impl_data);
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}
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}
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self.visit_ty(&typ);
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if let &Some(ref trait_ref) = trait_ref {
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@ -13,7 +13,7 @@ use std::io::Write;
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use rustc_serialize::json::as_json;
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use rls_data::{self, Analysis, CratePreludeData, Def, DefKind, Import, MacroRef, Ref, RefKind,
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Relation};
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Relation, Impl};
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use rls_data::config::Config;
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use rls_span::{Column, Row};
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@ -142,4 +142,8 @@ impl<'b, O: DumpOutput + 'b> JsonDumper<O> {
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pub fn dump_relation(&mut self, data: Relation) {
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self.result.relations.push(data);
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}
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pub fn dump_impl(&mut self, data: Impl) {
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self.result.impls.push(data);
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}
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}
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@ -45,6 +45,7 @@ use rustc::session::config::CrateType::CrateTypeExecutable;
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use rustc::ty::{self, TyCtxt};
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use rustc_typeck::hir_ty_to_ty;
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use std::cell::Cell;
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use std::default::Default;
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use std::env;
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use std::fs::File;
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@ -65,7 +66,7 @@ use dump_visitor::DumpVisitor;
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use span_utils::SpanUtils;
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use rls_data::{Def, DefKind, ExternalCrateData, GlobalCrateId, MacroRef, Ref, RefKind, Relation,
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RelationKind, SpanData};
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RelationKind, SpanData, Impl, ImplKind};
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use rls_data::config::Config;
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@ -75,13 +76,14 @@ pub struct SaveContext<'l, 'tcx: 'l> {
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analysis: &'l ty::CrateAnalysis,
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span_utils: SpanUtils<'tcx>,
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config: Config,
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impl_counter: Cell<u32>,
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}
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#[derive(Debug)]
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pub enum Data {
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RefData(Ref),
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DefData(Def),
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RelationData(Relation),
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RelationData(Relation, Impl),
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}
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impl<'l, 'tcx: 'l> SaveContext<'l, 'tcx> {
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@ -315,7 +317,7 @@ impl<'l, 'tcx: 'l> SaveContext<'l, 'tcx> {
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attributes: lower_attributes(item.attrs.to_owned(), self),
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}))
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}
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ast::ItemKind::Impl(.., ref trait_ref, ref typ, _) => {
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ast::ItemKind::Impl(.., ref trait_ref, ref typ, ref impls) => {
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if let ast::TyKind::Path(None, ref path) = typ.node {
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// Common case impl for a struct or something basic.
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if generated_code(path.span) {
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@ -324,17 +326,39 @@ impl<'l, 'tcx: 'l> SaveContext<'l, 'tcx> {
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let sub_span = self.span_utils.sub_span_for_type_name(path.span);
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filter!(self.span_utils, sub_span, typ.span, None);
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let impl_id = self.next_impl_id();
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let span = self.span_from_span(sub_span.unwrap());
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let type_data = self.lookup_ref_id(typ.id);
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type_data.map(|type_data| {
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Data::RelationData(Relation {
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kind: RelationKind::Impl,
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span: self.span_from_span(sub_span.unwrap()),
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kind: RelationKind::Impl {
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id: impl_id,
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},
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span: span.clone(),
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from: id_from_def_id(type_data),
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to: trait_ref
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.as_ref()
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.and_then(|t| self.lookup_ref_id(t.ref_id))
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.map(id_from_def_id)
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.unwrap_or(null_id()),
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},
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Impl {
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id: impl_id,
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kind: match *trait_ref {
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Some(_) => ImplKind::Direct,
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None => ImplKind::Inherent,
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},
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span: span,
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value: String::new(),
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parent: None,
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children: impls
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.iter()
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.map(|i| id_from_node_id(i.id, self))
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.collect(),
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docs: String::new(),
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sig: None,
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attributes: vec![],
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})
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})
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} else {
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@ -893,6 +917,12 @@ impl<'l, 'tcx: 'l> SaveContext<'l, 'tcx> {
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result
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}
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fn next_impl_id(&self) -> u32 {
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let next = self.impl_counter.get();
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self.impl_counter.set(next + 1);
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next
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}
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}
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fn make_signature(decl: &ast::FnDecl, generics: &ast::Generics) -> String {
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@ -1099,6 +1129,7 @@ pub fn process_crate<'l, 'tcx, H: SaveHandler>(
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analysis,
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span_utils: SpanUtils::new(&tcx.sess),
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config: find_config(config),
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impl_counter: Cell::new(0),
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};
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handler.save(save_ctxt, krate, cratename)
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