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:
bors 2018-02-11 05:29:20 +00:00
commit 0bb8935136
5 changed files with 59 additions and 10 deletions

12
src/Cargo.lock generated
View File

@ -1685,6 +1685,15 @@ dependencies = [
"serde_derive 1.0.27 (registry+https://github.com/rust-lang/crates.io-index)",
]
[[package]]
name = "rls-data"
version = "0.15.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
dependencies = [
"rls-span 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
"rustc-serialize 0.3.24 (registry+https://github.com/rust-lang/crates.io-index)",
]
[[package]]
name = "rls-rustc"
version = "0.2.1"
@ -2122,7 +2131,7 @@ name = "rustc_save_analysis"
version = "0.0.0"
dependencies = [
"log 0.4.1 (registry+https://github.com/rust-lang/crates.io-index)",
"rls-data 0.14.0 (registry+https://github.com/rust-lang/crates.io-index)",
"rls-data 0.15.0 (registry+https://github.com/rust-lang/crates.io-index)",
"rls-span 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
"rustc 0.0.0",
"rustc-serialize 0.3.24 (registry+https://github.com/rust-lang/crates.io-index)",
@ -3107,6 +3116,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
"checksum regex-syntax 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)" = "8e931c58b93d86f080c734bfd2bce7dd0079ae2331235818133c8be7f422e20e"
"checksum rls-analysis 0.10.0 (registry+https://github.com/rust-lang/crates.io-index)" = "38841e3c5271715a574ac220d9b408b59ed9e2626909c3bc54b5853b4eaadb7b"
"checksum rls-data 0.14.0 (registry+https://github.com/rust-lang/crates.io-index)" = "8024f1feaca72d0aa4ae1e2a8d454a31b9a33ed02f8d0e9c8559bf53c267ec3c"
"checksum rls-data 0.15.0 (registry+https://github.com/rust-lang/crates.io-index)" = "bea04462e94b5512a78499837eecb7db182ff082144cd1b4bc32ef5d43de6510"
"checksum rls-rustc 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "85cfb9dde19e313da3e47738008f8a472e470cc42d910b71595a9238494701f2"
"checksum rls-span 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "5d7c7046dc6a92f2ae02ed302746db4382e75131b9ce20ce967259f6b5867a6a"
"checksum rls-vfs 0.4.4 (registry+https://github.com/rust-lang/crates.io-index)" = "ffd34691a510938bb67fe0444fb363103c73ffb31c121d1e16bc92d8945ea8ff"

View File

@ -15,7 +15,7 @@ rustc_data_structures = { path = "../librustc_data_structures" }
rustc_typeck = { path = "../librustc_typeck" }
syntax = { path = "../libsyntax" }
syntax_pos = { path = "../libsyntax_pos" }
rls-data = "0.14"
rls-data = "0.15"
rls-span = "0.4"
# FIXME(#40527) should move rustc serialize out of tree
rustc-serialize = "0.3"

View File

@ -770,8 +770,12 @@ impl<'l, 'tcx: 'l, 'll, O: DumpOutput + 'll> DumpVisitor<'l, 'tcx, 'll, O> {
impl_items: &'l [ast::ImplItem],
) {
if let Some(impl_data) = self.save_ctxt.get_item_data(item) {
down_cast_data!(impl_data, RelationData, item.span);
self.dumper.dump_relation(impl_data);
if let super::Data::RelationData(rel, imp) = impl_data {
self.dumper.dump_relation(rel);
self.dumper.dump_impl(imp);
} else {
span_bug!(item.span, "unexpected data kind: {:?}", impl_data);
}
}
self.visit_ty(&typ);
if let &Some(ref trait_ref) = trait_ref {

View File

@ -13,7 +13,7 @@ use std::io::Write;
use rustc_serialize::json::as_json;
use rls_data::{self, Analysis, CratePreludeData, Def, DefKind, Import, MacroRef, Ref, RefKind,
Relation};
Relation, Impl};
use rls_data::config::Config;
use rls_span::{Column, Row};
@ -142,4 +142,8 @@ impl<'b, O: DumpOutput + 'b> JsonDumper<O> {
pub fn dump_relation(&mut self, data: Relation) {
self.result.relations.push(data);
}
pub fn dump_impl(&mut self, data: Impl) {
self.result.impls.push(data);
}
}

View File

@ -45,6 +45,7 @@ use rustc::session::config::CrateType::CrateTypeExecutable;
use rustc::ty::{self, TyCtxt};
use rustc_typeck::hir_ty_to_ty;
use std::cell::Cell;
use std::default::Default;
use std::env;
use std::fs::File;
@ -65,7 +66,7 @@ use dump_visitor::DumpVisitor;
use span_utils::SpanUtils;
use rls_data::{Def, DefKind, ExternalCrateData, GlobalCrateId, MacroRef, Ref, RefKind, Relation,
RelationKind, SpanData};
RelationKind, SpanData, Impl, ImplKind};
use rls_data::config::Config;
@ -75,13 +76,14 @@ pub struct SaveContext<'l, 'tcx: 'l> {
analysis: &'l ty::CrateAnalysis,
span_utils: SpanUtils<'tcx>,
config: Config,
impl_counter: Cell<u32>,
}
#[derive(Debug)]
pub enum Data {
RefData(Ref),
DefData(Def),
RelationData(Relation),
RelationData(Relation, Impl),
}
impl<'l, 'tcx: 'l> SaveContext<'l, 'tcx> {
@ -315,7 +317,7 @@ impl<'l, 'tcx: 'l> SaveContext<'l, 'tcx> {
attributes: lower_attributes(item.attrs.to_owned(), self),
}))
}
ast::ItemKind::Impl(.., ref trait_ref, ref typ, _) => {
ast::ItemKind::Impl(.., ref trait_ref, ref typ, ref impls) => {
if let ast::TyKind::Path(None, ref path) = typ.node {
// Common case impl for a struct or something basic.
if generated_code(path.span) {
@ -324,17 +326,39 @@ impl<'l, 'tcx: 'l> SaveContext<'l, 'tcx> {
let sub_span = self.span_utils.sub_span_for_type_name(path.span);
filter!(self.span_utils, sub_span, typ.span, None);
let impl_id = self.next_impl_id();
let span = self.span_from_span(sub_span.unwrap());
let type_data = self.lookup_ref_id(typ.id);
type_data.map(|type_data| {
Data::RelationData(Relation {
kind: RelationKind::Impl,
span: self.span_from_span(sub_span.unwrap()),
kind: RelationKind::Impl {
id: impl_id,
},
span: span.clone(),
from: id_from_def_id(type_data),
to: trait_ref
.as_ref()
.and_then(|t| self.lookup_ref_id(t.ref_id))
.map(id_from_def_id)
.unwrap_or(null_id()),
},
Impl {
id: impl_id,
kind: match *trait_ref {
Some(_) => ImplKind::Direct,
None => ImplKind::Inherent,
},
span: span,
value: String::new(),
parent: None,
children: impls
.iter()
.map(|i| id_from_node_id(i.id, self))
.collect(),
docs: String::new(),
sig: None,
attributes: vec![],
})
})
} else {
@ -893,6 +917,12 @@ impl<'l, 'tcx: 'l> SaveContext<'l, 'tcx> {
result
}
fn next_impl_id(&self) -> u32 {
let next = self.impl_counter.get();
self.impl_counter.set(next + 1);
next
}
}
fn make_signature(decl: &ast::FnDecl, generics: &ast::Generics) -> String {
@ -1099,6 +1129,7 @@ pub fn process_crate<'l, 'tcx, H: SaveHandler>(
analysis,
span_utils: SpanUtils::new(&tcx.sess),
config: find_config(config),
impl_counter: Cell::new(0),
};
handler.save(save_ctxt, krate, cratename)