2019-02-05 14:37:15 +01:00
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#![doc(html_root_url = "https://doc.rust-lang.org/nightly/")]
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2019-02-10 16:13:30 +09:00
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#![feature(nll)]
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2020-04-16 17:38:52 -07:00
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#![feature(or_patterns)]
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2019-12-22 17:42:04 -05:00
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#![recursion_limit = "256"]
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2017-05-08 14:36:44 -07:00
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2016-05-03 12:54:29 +02:00
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mod dump_visitor;
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2019-12-22 17:42:04 -05:00
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mod dumper;
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2016-05-03 12:54:29 +02:00
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#[macro_use]
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2017-06-08 14:45:15 +12:00
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mod span_utils;
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2017-05-30 10:37:11 +12:00
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mod sig;
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2016-05-03 12:54:29 +02:00
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2020-02-29 20:37:32 +03:00
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use rustc_ast::ast::{self, Attribute, NodeId, PatKind, DUMMY_NODE_ID};
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use rustc_ast::util::comments::strip_doc_comment_decoration;
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use rustc_ast::visit::{self, Visitor};
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2020-01-11 17:02:46 +01:00
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use rustc_ast_pretty::pprust::{self, param_to_string, ty_to_string};
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2020-01-05 02:37:57 +01:00
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use rustc_hir as hir;
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use rustc_hir::def::{CtorOf, DefKind as HirDefKind, Res};
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use rustc_hir::def_id::{DefId, LOCAL_CRATE};
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use rustc_hir::Node;
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2020-03-29 17:19:48 +02:00
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use rustc_middle::middle::cstore::ExternCrate;
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use rustc_middle::middle::privacy::AccessLevels;
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use rustc_middle::ty::{self, DefIdTree, TyCtxt};
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use rustc_middle::{bug, span_bug};
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2020-03-11 12:49:08 +01:00
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use rustc_session::config::{CrateType, Input, OutputType};
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2020-03-12 18:07:58 -05:00
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use rustc_session::output::{filename_for_metadata, out_filename};
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2020-01-11 17:02:46 +01:00
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use rustc_span::source_map::Spanned;
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use rustc_span::*;
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2016-03-22 18:40:24 +02:00
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2018-02-02 08:29:59 +01:00
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use std::cell::Cell;
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2017-07-18 17:44:19 +12:00
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use std::default::Default;
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2016-03-22 18:40:24 +02:00
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use std::env;
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2016-12-13 09:12:39 -08:00
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use std::fs::File;
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2019-06-26 17:22:39 -07:00
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use std::io::BufWriter;
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2016-03-22 18:40:24 +02:00
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use std::path::{Path, PathBuf};
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2015-07-09 12:23:29 +12:00
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2017-06-08 14:45:15 +12:00
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use dump_visitor::DumpVisitor;
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use span_utils::SpanUtils;
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2017-07-18 17:44:19 +12:00
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use rls_data::config::Config;
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2019-12-22 17:42:04 -05:00
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use rls_data::{
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Analysis, Def, DefKind, ExternalCrateData, GlobalCrateId, Impl, ImplKind, MacroRef, Ref,
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RefKind, Relation, RelationKind, SpanData,
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};
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2018-09-24 16:38:54 +02:00
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2019-02-07 01:02:00 +09:00
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use log::{debug, error, info};
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2019-06-14 19:39:39 +03:00
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pub struct SaveContext<'l, 'tcx> {
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2019-06-14 00:48:52 +03:00
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tcx: TyCtxt<'tcx>,
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2017-01-25 16:24:00 -05:00
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tables: &'l ty::TypeckTables<'tcx>,
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2019-10-05 01:25:20 +02:00
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/// Used as a fallback when nesting the typeck tables during item processing
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/// (if these are not available for that item, e.g. don't own a body)
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empty_tables: &'l ty::TypeckTables<'tcx>,
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2019-01-07 23:55:55 +01:00
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access_levels: &'l AccessLevels,
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2016-04-18 10:30:55 +12:00
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span_utils: SpanUtils<'tcx>,
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2017-07-18 17:44:19 +12:00
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config: Config,
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2018-02-02 08:29:59 +01:00
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impl_counter: Cell<u32>,
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2015-05-05 18:46:09 +12:00
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}
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2017-06-08 14:45:15 +12:00
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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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2018-02-02 08:29:59 +01:00
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RelationData(Relation, Impl),
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2017-06-08 14:45:15 +12:00
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}
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2019-06-14 19:39:39 +03:00
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impl<'l, 'tcx> SaveContext<'l, 'tcx> {
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2017-06-08 14:45:15 +12:00
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fn span_from_span(&self, span: Span) -> SpanData {
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2017-11-08 10:43:05 +13:00
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use rls_span::{Column, Row};
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2017-06-08 14:45:15 +12:00
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2020-02-22 16:07:05 +02:00
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let sm = self.tcx.sess.source_map();
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let start = sm.lookup_char_pos(span.lo());
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let end = sm.lookup_char_pos(span.hi());
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2017-06-08 14:45:15 +12:00
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SpanData {
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2018-09-03 14:31:57 +02:00
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file_name: start.file.name.to_string().into(),
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2017-07-31 23:04:34 +03:00
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byte_start: span.lo().0,
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byte_end: span.hi().0,
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2017-06-08 14:45:15 +12:00
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line_start: Row::new_one_indexed(start.line as u32),
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line_end: Row::new_one_indexed(end.line as u32),
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column_start: Column::new_one_indexed(start.col.0 as u32 + 1),
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column_end: Column::new_one_indexed(end.col.0 as u32 + 1),
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}
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}
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2018-11-27 02:59:49 +00:00
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// Returns path to the compilation output (e.g., libfoo-12345678.rmeta)
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2018-09-22 23:19:39 +02:00
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pub fn compilation_output(&self, crate_name: &str) -> PathBuf {
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let sess = &self.tcx.sess;
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// Save-analysis is emitted per whole session, not per each crate type
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let crate_type = sess.crate_types.borrow()[0];
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let outputs = &*self.tcx.output_filenames(LOCAL_CRATE);
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if outputs.outputs.contains_key(&OutputType::Metadata) {
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filename_for_metadata(sess, crate_name, outputs)
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} else if outputs.outputs.should_codegen() {
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out_filename(sess, crate_type, outputs, crate_name)
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} else {
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// Otherwise it's only a DepInfo, in which case we return early and
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// not even reach the analysis stage.
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unreachable!()
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}
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}
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2015-05-05 18:46:09 +12:00
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// List external crates used by the current crate.
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2017-06-08 14:45:15 +12:00
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pub fn get_external_crates(&self) -> Vec<ExternalCrateData> {
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2018-09-03 14:31:57 +02:00
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let mut result = Vec::with_capacity(self.tcx.crates().len());
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2015-05-05 18:46:09 +12:00
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2017-09-07 08:13:41 -07:00
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for &n in self.tcx.crates().iter() {
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2018-12-01 17:27:12 +01:00
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let span = match self.tcx.extern_crate(n.as_def_id()) {
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Some(&ExternCrate { span, .. }) => span,
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2016-04-25 20:54:00 +12:00
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None => {
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2019-07-23 21:26:01 +02:00
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debug!("skipping crate {}, no data", n);
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2016-04-25 20:54:00 +12:00
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continue;
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}
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};
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2018-08-18 12:14:09 +02:00
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let lo_loc = self.span_utils.sess.source_map().lookup_char_pos(span.lo());
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2017-06-08 14:45:15 +12:00
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result.push(ExternalCrateData {
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2017-12-14 08:09:19 +01:00
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// FIXME: change file_name field to PathBuf in rls-data
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// https://github.com/nrc/rls-data/issues/7
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2018-09-11 16:39:07 +02:00
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file_name: self.span_utils.make_filename_string(&lo_loc.file),
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2017-10-15 23:27:17 +02:00
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num: n.as_u32(),
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id: GlobalCrateId {
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name: self.tcx.crate_name(n).to_string(),
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2017-11-08 10:43:05 +13:00
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disambiguator: self.tcx.crate_disambiguator(n).to_fingerprint().as_value(),
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2017-10-15 23:27:17 +02:00
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},
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2015-09-28 09:20:49 +13:00
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});
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2015-11-21 21:39:05 +02:00
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}
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2015-05-05 18:46:09 +12:00
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result
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}
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2015-05-05 19:27:44 +12:00
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2017-03-08 18:04:30 +13:00
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pub fn get_extern_item_data(&self, item: &ast::ForeignItem) -> Option<Data> {
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2019-12-22 17:42:04 -05:00
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let qualname = format!(
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"::{}",
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2020-04-08 15:09:38 +01:00
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self.tcx.def_path_str(self.tcx.hir().local_def_id_from_node_id(item.id).to_def_id())
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2019-12-22 17:42:04 -05:00
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);
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2019-09-26 17:58:14 +01:00
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match item.kind {
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2020-02-23 10:24:30 +01:00
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ast::ForeignItemKind::Fn(_, ref sig, ref generics, _) => {
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2018-09-10 12:54:36 +12:00
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filter!(self.span_utils, item.ident.span);
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2017-06-08 14:45:15 +12:00
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Some(Data::DefData(Def {
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2018-08-18 17:16:46 +02:00
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kind: DefKind::ForeignFunction,
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2017-06-08 14:45:15 +12:00
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id: id_from_node_id(item.id, self),
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2018-09-10 12:54:36 +12:00
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span: self.span_from_span(item.ident.span),
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2017-03-08 18:04:30 +13:00
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name: item.ident.to_string(),
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2017-06-08 14:45:15 +12:00
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qualname,
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2020-01-30 00:18:54 +01:00
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value: make_signature(&sig.decl, generics),
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2017-03-08 18:04:30 +13:00
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parent: None,
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2017-06-08 14:45:15 +12:00
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children: vec![],
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decl_id: None,
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2017-07-18 17:54:49 +12:00
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docs: self.docs_for_attrs(&item.attrs),
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2017-06-05 16:42:39 +12:00
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sig: sig::foreign_item_signature(item, self),
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2017-06-08 14:45:15 +12:00
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attributes: lower_attributes(item.attrs.clone(), self),
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2017-03-08 18:04:30 +13:00
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}))
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}
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2020-02-29 15:51:08 +03:00
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ast::ForeignItemKind::Static(ref ty, _, _) => {
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2018-09-10 12:54:36 +12:00
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filter!(self.span_utils, item.ident.span);
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2017-06-08 14:45:15 +12:00
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2019-02-07 01:02:00 +09:00
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let id = id_from_node_id(item.id, self);
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2018-09-10 12:54:36 +12:00
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let span = self.span_from_span(item.ident.span);
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2017-06-08 14:45:15 +12:00
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Some(Data::DefData(Def {
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2018-08-18 17:16:46 +02:00
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kind: DefKind::ForeignStatic,
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2017-06-08 14:45:15 +12:00
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id,
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span,
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2017-03-08 18:04:30 +13:00
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name: item.ident.to_string(),
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2017-06-08 14:45:15 +12:00
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qualname,
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value: ty_to_string(ty),
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2017-03-08 18:04:30 +13:00
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parent: None,
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2017-06-08 14:45:15 +12:00
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children: vec![],
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decl_id: None,
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2017-07-18 17:54:49 +12:00
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docs: self.docs_for_attrs(&item.attrs),
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2017-06-05 16:42:39 +12:00
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sig: sig::foreign_item_signature(item, self),
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2017-06-08 14:45:15 +12:00
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attributes: lower_attributes(item.attrs.clone(), self),
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2017-03-08 18:04:30 +13:00
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}))
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}
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2017-09-03 19:53:58 +01:00
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// FIXME(plietar): needs a new DefKind in rls-data
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2020-02-14 12:55:42 +01:00
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ast::ForeignItemKind::TyAlias(..) => None,
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2020-02-29 19:32:20 +03:00
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ast::ForeignItemKind::MacCall(..) => None,
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2017-03-08 18:04:30 +13:00
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}
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}
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2016-01-22 11:58:09 +13:00
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pub fn get_item_data(&self, item: &ast::Item) -> Option<Data> {
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2019-09-26 17:51:36 +01:00
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match item.kind {
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2020-02-23 10:24:30 +01:00
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ast::ItemKind::Fn(_, ref sig, .., ref generics, _) => {
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2019-12-22 17:42:04 -05:00
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let qualname = format!(
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"::{}",
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2020-04-08 15:09:38 +01:00
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self.tcx.def_path_str(
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self.tcx.hir().local_def_id_from_node_id(item.id).to_def_id()
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)
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2019-12-22 17:42:04 -05:00
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);
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2018-09-10 12:54:36 +12:00
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filter!(self.span_utils, item.ident.span);
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2017-06-08 14:45:15 +12:00
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Some(Data::DefData(Def {
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kind: DefKind::Function,
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id: id_from_node_id(item.id, self),
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2018-09-10 12:54:36 +12:00
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span: self.span_from_span(item.ident.span),
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2016-05-23 10:23:36 +12:00
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name: item.ident.to_string(),
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2017-06-08 14:45:15 +12:00
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qualname,
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2019-11-07 13:33:37 +01:00
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value: make_signature(&sig.decl, generics),
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2016-08-30 16:00:48 +12:00
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parent: None,
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2017-06-08 14:45:15 +12:00
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children: vec![],
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decl_id: None,
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2017-07-18 17:54:49 +12:00
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docs: self.docs_for_attrs(&item.attrs),
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2017-05-31 15:59:48 +12:00
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sig: sig::item_signature(item, self),
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2017-06-08 14:45:15 +12:00
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attributes: lower_attributes(item.attrs.clone(), self),
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2016-01-22 11:58:09 +13:00
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}))
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2015-05-05 19:27:44 +12:00
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}
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2018-09-10 12:54:36 +12:00
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ast::ItemKind::Static(ref typ, ..) => {
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2019-12-22 17:42:04 -05:00
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let qualname = format!(
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"::{}",
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2020-04-08 15:09:38 +01:00
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self.tcx.def_path_str(
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self.tcx.hir().local_def_id_from_node_id(item.id).to_def_id()
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)
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2019-12-22 17:42:04 -05:00
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);
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2015-05-11 08:35:08 +12:00
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2018-09-10 12:54:36 +12:00
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filter!(self.span_utils, item.ident.span);
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2017-06-08 14:45:15 +12:00
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let id = id_from_node_id(item.id, self);
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2018-09-10 12:54:36 +12:00
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let span = self.span_from_span(item.ident.span);
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2017-06-08 14:45:15 +12:00
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Some(Data::DefData(Def {
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kind: DefKind::Static,
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id,
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span,
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2015-07-28 18:07:20 +02:00
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name: item.ident.to_string(),
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2017-06-08 14:45:15 +12:00
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qualname,
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value: ty_to_string(&typ),
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2016-08-30 16:00:48 +12:00
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parent: None,
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2017-06-08 14:45:15 +12:00
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children: vec![],
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decl_id: None,
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2017-07-18 17:54:49 +12:00
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docs: self.docs_for_attrs(&item.attrs),
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2017-05-31 15:59:48 +12:00
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sig: sig::item_signature(item, self),
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2017-06-08 14:45:15 +12:00
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attributes: lower_attributes(item.attrs.clone(), self),
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2016-01-22 11:58:09 +13:00
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}))
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2015-05-11 08:35:08 +12:00
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}
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2020-02-23 10:24:30 +01:00
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ast::ItemKind::Const(_, ref typ, _) => {
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2019-12-22 17:42:04 -05:00
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let qualname = format!(
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"::{}",
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2020-04-08 15:09:38 +01:00
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self.tcx.def_path_str(
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self.tcx.hir().local_def_id_from_node_id(item.id).to_def_id()
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)
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2019-12-22 17:42:04 -05:00
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);
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2018-09-10 12:54:36 +12:00
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filter!(self.span_utils, item.ident.span);
|
2017-06-08 14:45:15 +12:00
|
|
|
|
|
|
|
let id = id_from_node_id(item.id, self);
|
2018-09-10 12:54:36 +12:00
|
|
|
let span = self.span_from_span(item.ident.span);
|
2017-06-08 14:45:15 +12:00
|
|
|
|
|
|
|
Some(Data::DefData(Def {
|
|
|
|
kind: DefKind::Const,
|
|
|
|
id,
|
|
|
|
span,
|
2015-07-28 18:07:20 +02:00
|
|
|
name: item.ident.to_string(),
|
2017-06-08 14:45:15 +12:00
|
|
|
qualname,
|
|
|
|
value: ty_to_string(typ),
|
2016-08-30 16:00:48 +12:00
|
|
|
parent: None,
|
2017-06-08 14:45:15 +12:00
|
|
|
children: vec![],
|
|
|
|
decl_id: None,
|
2017-07-18 17:54:49 +12:00
|
|
|
docs: self.docs_for_attrs(&item.attrs),
|
2017-05-31 15:59:48 +12:00
|
|
|
sig: sig::item_signature(item, self),
|
2017-06-08 14:45:15 +12:00
|
|
|
attributes: lower_attributes(item.attrs.clone(), self),
|
2016-01-22 11:58:09 +13:00
|
|
|
}))
|
2015-05-11 08:35:08 +12:00
|
|
|
}
|
2016-02-09 11:36:51 +01:00
|
|
|
ast::ItemKind::Mod(ref m) => {
|
2019-12-22 17:42:04 -05:00
|
|
|
let qualname = format!(
|
|
|
|
"::{}",
|
2020-04-08 15:09:38 +01:00
|
|
|
self.tcx.def_path_str(
|
|
|
|
self.tcx.hir().local_def_id_from_node_id(item.id).to_def_id()
|
|
|
|
)
|
2019-12-22 17:42:04 -05:00
|
|
|
);
|
2015-05-26 10:35:53 +12:00
|
|
|
|
2020-02-22 16:07:05 +02:00
|
|
|
let sm = self.tcx.sess.source_map();
|
|
|
|
let filename = sm.span_to_filename(m.inner);
|
2015-05-26 10:35:53 +12:00
|
|
|
|
2018-09-10 12:54:36 +12:00
|
|
|
filter!(self.span_utils, item.ident.span);
|
2016-11-30 11:50:08 +13:00
|
|
|
|
2017-06-08 14:45:15 +12:00
|
|
|
Some(Data::DefData(Def {
|
|
|
|
kind: DefKind::Mod,
|
|
|
|
id: id_from_node_id(item.id, self),
|
2015-07-28 18:07:20 +02:00
|
|
|
name: item.ident.to_string(),
|
2017-06-08 14:45:15 +12:00
|
|
|
qualname,
|
2018-09-10 12:54:36 +12:00
|
|
|
span: self.span_from_span(item.ident.span),
|
2017-12-14 08:09:19 +01:00
|
|
|
value: filename.to_string(),
|
2017-06-08 14:45:15 +12:00
|
|
|
parent: None,
|
2019-12-22 17:42:04 -05:00
|
|
|
children: m.items.iter().map(|i| id_from_node_id(i.id, self)).collect(),
|
2017-06-08 14:45:15 +12:00
|
|
|
decl_id: None,
|
2017-07-18 17:54:49 +12:00
|
|
|
docs: self.docs_for_attrs(&item.attrs),
|
2017-05-31 15:59:48 +12:00
|
|
|
sig: sig::item_signature(item, self),
|
2017-06-08 14:45:15 +12:00
|
|
|
attributes: lower_attributes(item.attrs.clone(), self),
|
2016-01-22 11:58:09 +13:00
|
|
|
}))
|
2015-09-02 15:37:07 +12:00
|
|
|
}
|
2016-05-11 13:46:39 -07:00
|
|
|
ast::ItemKind::Enum(ref def, _) => {
|
|
|
|
let name = item.ident.to_string();
|
2019-12-22 17:42:04 -05:00
|
|
|
let qualname = format!(
|
|
|
|
"::{}",
|
2020-04-08 15:09:38 +01:00
|
|
|
self.tcx.def_path_str(
|
|
|
|
self.tcx.hir().local_def_id_from_node_id(item.id).to_def_id()
|
|
|
|
)
|
2019-12-22 17:42:04 -05:00
|
|
|
);
|
2018-09-10 12:54:36 +12:00
|
|
|
filter!(self.span_utils, item.ident.span);
|
2019-12-22 17:42:04 -05:00
|
|
|
let variants_str =
|
|
|
|
def.variants.iter().map(|v| v.ident.to_string()).collect::<Vec<_>>().join(", ");
|
2017-06-08 14:45:15 +12:00
|
|
|
let value = format!("{}::{{{}}}", name, variants_str);
|
|
|
|
Some(Data::DefData(Def {
|
|
|
|
kind: DefKind::Enum,
|
|
|
|
id: id_from_node_id(item.id, self),
|
2018-09-10 12:54:36 +12:00
|
|
|
span: self.span_from_span(item.ident.span),
|
2017-06-08 14:45:15 +12:00
|
|
|
name,
|
|
|
|
qualname,
|
|
|
|
value,
|
|
|
|
parent: None,
|
2019-12-22 17:42:04 -05:00
|
|
|
children: def.variants.iter().map(|v| id_from_node_id(v.id, self)).collect(),
|
2017-06-08 14:45:15 +12:00
|
|
|
decl_id: None,
|
2017-07-18 17:54:49 +12:00
|
|
|
docs: self.docs_for_attrs(&item.attrs),
|
2017-05-31 15:59:48 +12:00
|
|
|
sig: sig::item_signature(item, self),
|
2018-09-03 14:31:57 +02:00
|
|
|
attributes: lower_attributes(item.attrs.clone(), self),
|
2016-01-22 11:58:09 +13:00
|
|
|
}))
|
2015-09-02 15:37:07 +12:00
|
|
|
}
|
2020-01-13 20:30:20 -08:00
|
|
|
ast::ItemKind::Impl { ref of_trait, ref self_ty, ref items, .. } => {
|
|
|
|
if let ast::TyKind::Path(None, ref path) = self_ty.kind {
|
2015-06-05 17:50:04 +12:00
|
|
|
// Common case impl for a struct or something basic.
|
2017-06-08 14:45:15 +12:00
|
|
|
if generated_code(path.span) {
|
|
|
|
return None;
|
2015-06-05 17:50:04 +12:00
|
|
|
}
|
2018-09-10 12:54:36 +12:00
|
|
|
let sub_span = path.segments.last().unwrap().ident.span;
|
|
|
|
filter!(self.span_utils, sub_span);
|
2017-06-08 14:45:15 +12:00
|
|
|
|
2018-02-02 08:29:59 +01:00
|
|
|
let impl_id = self.next_impl_id();
|
2018-09-10 12:54:36 +12:00
|
|
|
let span = self.span_from_span(sub_span);
|
2018-02-02 08:29:59 +01:00
|
|
|
|
2020-01-13 20:30:20 -08:00
|
|
|
let type_data = self.lookup_def_id(self_ty.id);
|
2017-11-08 10:43:05 +13:00
|
|
|
type_data.map(|type_data| {
|
2019-12-22 17:42:04 -05:00
|
|
|
Data::RelationData(
|
|
|
|
Relation {
|
|
|
|
kind: RelationKind::Impl { id: impl_id },
|
|
|
|
span: span.clone(),
|
|
|
|
from: id_from_def_id(type_data),
|
2020-01-13 20:30:20 -08:00
|
|
|
to: of_trait
|
2019-12-22 17:42:04 -05:00
|
|
|
.as_ref()
|
|
|
|
.and_then(|t| self.lookup_def_id(t.ref_id))
|
|
|
|
.map(id_from_def_id)
|
2020-03-22 12:43:19 +01:00
|
|
|
.unwrap_or_else(null_id),
|
2018-02-02 08:29:59 +01:00
|
|
|
},
|
2019-12-22 17:42:04 -05:00
|
|
|
Impl {
|
|
|
|
id: impl_id,
|
2020-01-13 20:30:20 -08:00
|
|
|
kind: match *of_trait {
|
2019-12-22 17:42:04 -05:00
|
|
|
Some(_) => ImplKind::Direct,
|
|
|
|
None => ImplKind::Inherent,
|
|
|
|
},
|
2020-03-06 19:28:44 +01:00
|
|
|
span,
|
2019-12-22 17:42:04 -05:00
|
|
|
value: String::new(),
|
|
|
|
parent: None,
|
2020-01-13 20:30:20 -08:00
|
|
|
children: items
|
2019-12-22 17:42:04 -05:00
|
|
|
.iter()
|
|
|
|
.map(|i| id_from_node_id(i.id, self))
|
|
|
|
.collect(),
|
|
|
|
docs: String::new(),
|
|
|
|
sig: None,
|
|
|
|
attributes: vec![],
|
2018-02-02 08:29:59 +01:00
|
|
|
},
|
2019-12-22 17:42:04 -05:00
|
|
|
)
|
2017-11-08 10:43:05 +13:00
|
|
|
})
|
2017-06-08 14:45:15 +12:00
|
|
|
} else {
|
|
|
|
None
|
2015-06-05 17:50:04 +12:00
|
|
|
}
|
|
|
|
}
|
2015-05-26 10:35:53 +12:00
|
|
|
_ => {
|
|
|
|
// FIXME
|
2016-03-28 23:21:01 +02:00
|
|
|
bug!();
|
2015-05-26 10:35:53 +12:00
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2017-11-08 10:43:05 +13:00
|
|
|
pub fn get_field_data(&self, field: &ast::StructField, scope: NodeId) -> Option<Def> {
|
2016-04-06 11:19:10 +03:00
|
|
|
if let Some(ident) = field.ident {
|
2016-11-22 08:12:02 +13:00
|
|
|
let name = ident.to_string();
|
2019-12-22 17:42:04 -05:00
|
|
|
let qualname = format!(
|
|
|
|
"::{}::{}",
|
2020-04-08 15:09:38 +01:00
|
|
|
self.tcx.def_path_str(self.tcx.hir().local_def_id_from_node_id(scope).to_def_id()),
|
2019-12-22 17:42:04 -05:00
|
|
|
ident
|
|
|
|
);
|
2018-09-10 12:54:36 +12:00
|
|
|
filter!(self.span_utils, ident.span);
|
2020-04-08 15:09:38 +01:00
|
|
|
let def_id = self.tcx.hir().local_def_id_from_node_id(field.id).to_def_id();
|
2017-04-24 15:20:46 +03:00
|
|
|
let typ = self.tcx.type_of(def_id).to_string();
|
2016-11-22 08:12:02 +13:00
|
|
|
|
2017-06-08 14:45:15 +12:00
|
|
|
let id = id_from_node_id(field.id, self);
|
2018-09-10 12:54:36 +12:00
|
|
|
let span = self.span_from_span(ident.span);
|
2017-06-08 14:45:15 +12:00
|
|
|
|
|
|
|
Some(Def {
|
|
|
|
kind: DefKind::Field,
|
|
|
|
id,
|
|
|
|
span,
|
|
|
|
name,
|
|
|
|
qualname,
|
|
|
|
value: typ,
|
|
|
|
parent: Some(id_from_node_id(scope, self)),
|
|
|
|
children: vec![],
|
|
|
|
decl_id: None,
|
2017-07-18 17:54:49 +12:00
|
|
|
docs: self.docs_for_attrs(&field.attrs),
|
2017-06-05 16:42:39 +12:00
|
|
|
sig: sig::field_signature(field, self),
|
2017-06-08 14:45:15 +12:00
|
|
|
attributes: lower_attributes(field.attrs.clone(), self),
|
2016-04-02 16:47:53 +03:00
|
|
|
})
|
|
|
|
} else {
|
|
|
|
None
|
2015-06-05 16:03:48 +12:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2015-07-09 12:23:29 +12:00
|
|
|
// FIXME would be nice to take a MethodItem here, but the ast provides both
|
|
|
|
// trait and impl flavours, so the caller must do the disassembly.
|
2018-09-10 12:54:36 +12:00
|
|
|
pub fn get_method_data(&self, id: ast::NodeId, ident: ast::Ident, span: Span) -> Option<Def> {
|
2015-07-09 12:23:29 +12:00
|
|
|
// The qualname for a method is the trait name or name of the struct in an impl in
|
|
|
|
// which the method is declared in, followed by the method's name.
|
2019-12-22 17:42:04 -05:00
|
|
|
let (qualname, parent_scope, decl_id, docs, attributes) = match self
|
|
|
|
.tcx
|
2020-04-08 15:09:38 +01:00
|
|
|
.impl_of_method(self.tcx.hir().local_def_id_from_node_id(id).to_def_id())
|
2019-12-22 17:42:04 -05:00
|
|
|
{
|
|
|
|
Some(impl_id) => match self.tcx.hir().get_if_local(impl_id) {
|
|
|
|
Some(Node::Item(item)) => match item.kind {
|
2020-01-17 16:14:29 -08:00
|
|
|
hir::ItemKind::Impl { ref self_ty, .. } => {
|
2020-03-24 02:44:41 +01:00
|
|
|
let hir = self.tcx.hir();
|
|
|
|
|
2019-12-22 17:42:04 -05:00
|
|
|
let mut qualname = String::from("<");
|
2020-03-24 02:44:41 +01:00
|
|
|
qualname.push_str(&rustc_hir_pretty::id_to_string(&hir, self_ty.hir_id));
|
2019-12-22 17:42:04 -05:00
|
|
|
|
|
|
|
let trait_id = self.tcx.trait_id_of_impl(impl_id);
|
2018-05-07 11:43:34 +12:00
|
|
|
let mut docs = String::new();
|
|
|
|
let mut attrs = vec![];
|
2020-03-27 16:43:20 +01:00
|
|
|
if let Some(Node::ImplItem(item)) = hir.find(hir.node_id_to_hir_id(id)) {
|
2018-05-07 11:43:34 +12:00
|
|
|
docs = self.docs_for_attrs(&item.attrs);
|
|
|
|
attrs = item.attrs.to_vec();
|
|
|
|
}
|
|
|
|
|
2020-02-17 13:09:01 -08:00
|
|
|
let mut decl_id = None;
|
2019-12-22 17:42:04 -05:00
|
|
|
if let Some(def_id) = trait_id {
|
|
|
|
// A method in a trait impl.
|
|
|
|
qualname.push_str(" as ");
|
|
|
|
qualname.push_str(&self.tcx.def_path_str(def_id));
|
2020-02-17 13:09:01 -08:00
|
|
|
|
|
|
|
decl_id = self
|
|
|
|
.tcx
|
2019-12-22 17:42:04 -05:00
|
|
|
.associated_items(def_id)
|
2020-02-17 13:09:01 -08:00
|
|
|
.filter_by_name_unhygienic(ident.name)
|
|
|
|
.next()
|
|
|
|
.map(|item| item.def_id);
|
2019-12-22 17:42:04 -05:00
|
|
|
}
|
|
|
|
qualname.push_str(">");
|
|
|
|
|
|
|
|
(qualname, trait_id, decl_id, docs, attrs)
|
2018-05-07 11:43:34 +12:00
|
|
|
}
|
2019-12-22 17:42:04 -05:00
|
|
|
_ => {
|
|
|
|
span_bug!(span, "Container {:?} for method {} not an impl?", impl_id, id);
|
2015-07-09 12:23:29 +12:00
|
|
|
}
|
2017-11-08 10:43:05 +13:00
|
|
|
},
|
2019-12-22 17:42:04 -05:00
|
|
|
r => {
|
|
|
|
span_bug!(
|
|
|
|
span,
|
|
|
|
"Container {:?} for method {} is not a node item {:?}",
|
|
|
|
impl_id,
|
|
|
|
id,
|
|
|
|
r
|
|
|
|
);
|
|
|
|
}
|
|
|
|
},
|
2020-04-08 15:09:38 +01:00
|
|
|
None => match self
|
|
|
|
.tcx
|
|
|
|
.trait_of_item(self.tcx.hir().local_def_id_from_node_id(id).to_def_id())
|
|
|
|
{
|
2019-12-22 17:42:04 -05:00
|
|
|
Some(def_id) => {
|
|
|
|
let mut docs = String::new();
|
|
|
|
let mut attrs = vec![];
|
2020-03-27 16:43:20 +01:00
|
|
|
let hir_id = self.tcx.hir().node_id_to_hir_id(id);
|
2019-12-22 17:42:04 -05:00
|
|
|
|
|
|
|
if let Some(Node::TraitItem(item)) = self.tcx.hir().find(hir_id) {
|
|
|
|
docs = self.docs_for_attrs(&item.attrs);
|
|
|
|
attrs = item.attrs.to_vec();
|
|
|
|
}
|
|
|
|
|
|
|
|
(
|
|
|
|
format!("::{}", self.tcx.def_path_str(def_id)),
|
|
|
|
Some(def_id),
|
|
|
|
None,
|
|
|
|
docs,
|
|
|
|
attrs,
|
|
|
|
)
|
|
|
|
}
|
|
|
|
None => {
|
|
|
|
debug!("could not find container for method {} at {:?}", id, span);
|
|
|
|
// This is not necessarily a bug, if there was a compilation error,
|
|
|
|
// the tables we need might not exist.
|
|
|
|
return None;
|
|
|
|
}
|
|
|
|
},
|
|
|
|
};
|
2015-07-09 12:23:29 +12:00
|
|
|
|
2018-09-10 12:54:36 +12:00
|
|
|
let qualname = format!("{}::{}", qualname, ident.name);
|
2015-07-09 12:23:29 +12:00
|
|
|
|
2018-09-10 12:54:36 +12:00
|
|
|
filter!(self.span_utils, ident.span);
|
2016-11-30 11:50:08 +13:00
|
|
|
|
2017-06-08 14:45:15 +12:00
|
|
|
Some(Def {
|
|
|
|
kind: DefKind::Method,
|
|
|
|
id: id_from_node_id(id, self),
|
2018-09-10 12:54:36 +12:00
|
|
|
span: self.span_from_span(ident.span),
|
|
|
|
name: ident.name.to_string(),
|
2017-06-08 14:45:15 +12:00
|
|
|
qualname,
|
2016-05-11 13:46:39 -07:00
|
|
|
// FIXME you get better data here by using the visitor.
|
|
|
|
value: String::new(),
|
2020-03-22 12:43:19 +01:00
|
|
|
parent: parent_scope.map(id_from_def_id),
|
2017-06-08 14:45:15 +12:00
|
|
|
children: vec![],
|
2020-03-22 12:43:19 +01:00
|
|
|
decl_id: decl_id.map(id_from_def_id),
|
2017-06-08 14:45:15 +12:00
|
|
|
docs,
|
2017-05-31 15:59:48 +12:00
|
|
|
sig: None,
|
2017-06-08 14:45:15 +12:00
|
|
|
attributes: lower_attributes(attributes, self),
|
2016-01-22 11:58:09 +13:00
|
|
|
})
|
2015-07-09 12:23:29 +12:00
|
|
|
}
|
|
|
|
|
2017-11-08 10:43:05 +13:00
|
|
|
pub fn get_trait_ref_data(&self, trait_ref: &ast::TraitRef) -> Option<Ref> {
|
2019-09-14 20:53:42 +02:00
|
|
|
self.lookup_def_id(trait_ref.ref_id).and_then(|def_id| {
|
2015-06-15 17:58:10 +12:00
|
|
|
let span = trait_ref.path.span;
|
2017-02-02 16:23:27 +13:00
|
|
|
if generated_code(span) {
|
|
|
|
return None;
|
|
|
|
}
|
2018-09-10 12:54:36 +12:00
|
|
|
let sub_span = trait_ref.path.segments.last().unwrap().ident.span;
|
|
|
|
filter!(self.span_utils, sub_span);
|
|
|
|
let span = self.span_from_span(sub_span);
|
2019-12-22 17:42:04 -05:00
|
|
|
Some(Ref { kind: RefKind::Type, span, ref_id: id_from_def_id(def_id) })
|
2015-06-05 17:50:04 +12:00
|
|
|
})
|
|
|
|
}
|
|
|
|
|
2015-06-15 10:06:01 +12:00
|
|
|
pub fn get_expr_data(&self, expr: &ast::Expr) -> Option<Data> {
|
2020-03-27 16:43:20 +01:00
|
|
|
let expr_hir_id = self.tcx.hir().node_id_to_hir_id(expr.id);
|
2019-06-20 10:05:56 +02:00
|
|
|
let hir_node = self.tcx.hir().expect_expr(expr_hir_id);
|
2017-01-06 21:54:24 +02:00
|
|
|
let ty = self.tables.expr_ty_adjusted_opt(&hir_node);
|
2019-09-16 19:08:35 +01:00
|
|
|
if ty.is_none() || ty.unwrap().kind == ty::Error {
|
2016-01-28 13:10:04 +13:00
|
|
|
return None;
|
|
|
|
}
|
2019-09-26 14:39:48 +01:00
|
|
|
match expr.kind {
|
2016-02-08 16:05:05 +01:00
|
|
|
ast::ExprKind::Field(ref sub_ex, ident) => {
|
2020-03-27 16:43:20 +01:00
|
|
|
let sub_ex_hir_id = self.tcx.hir().node_id_to_hir_id(sub_ex.id);
|
2019-06-24 09:58:49 +02:00
|
|
|
let hir_node = match self.tcx.hir().find(sub_ex_hir_id) {
|
2018-08-25 15:56:16 +01:00
|
|
|
Some(Node::Expr(expr)) => expr,
|
2016-05-25 15:24:55 +12:00
|
|
|
_ => {
|
2017-11-08 10:43:05 +13:00
|
|
|
debug!(
|
|
|
|
"Missing or weird node for sub-expression {} in {:?}",
|
2019-12-22 17:42:04 -05:00
|
|
|
sub_ex.id, expr
|
2017-11-08 10:43:05 +13:00
|
|
|
);
|
2016-05-25 15:24:55 +12:00
|
|
|
return None;
|
|
|
|
}
|
|
|
|
};
|
2019-09-16 19:08:35 +01:00
|
|
|
match self.tables.expr_ty_adjusted(&hir_node).kind {
|
2018-08-22 01:35:02 +01:00
|
|
|
ty::Adt(def, _) if !def.is_enum() => {
|
2018-04-05 03:20:21 +03:00
|
|
|
let variant = &def.non_enum_variant();
|
2018-09-10 12:54:36 +12:00
|
|
|
filter!(self.span_utils, ident.span);
|
|
|
|
let span = self.span_from_span(ident.span);
|
2020-03-20 15:03:11 +01:00
|
|
|
Some(Data::RefData(Ref {
|
2017-06-08 14:45:15 +12:00
|
|
|
kind: RefKind::Variable,
|
|
|
|
span,
|
2020-02-24 23:22:46 +09:00
|
|
|
ref_id: self
|
|
|
|
.tcx
|
|
|
|
.find_field_index(ident, variant)
|
|
|
|
.map(|index| id_from_def_id(variant.fields[index].did))
|
2020-03-22 12:43:19 +01:00
|
|
|
.unwrap_or_else(null_id),
|
2020-03-20 15:03:11 +01:00
|
|
|
}))
|
2015-05-26 10:35:53 +12:00
|
|
|
}
|
2018-08-22 01:35:02 +01:00
|
|
|
ty::Tuple(..) => None,
|
2015-06-15 10:06:01 +12:00
|
|
|
_ => {
|
2019-07-23 21:26:01 +02:00
|
|
|
debug!("expected struct or union type, found {:?}", ty);
|
2015-06-15 10:06:01 +12:00
|
|
|
None
|
|
|
|
}
|
2015-05-26 10:35:53 +12:00
|
|
|
}
|
|
|
|
}
|
2016-08-26 19:23:42 +03:00
|
|
|
ast::ExprKind::Struct(ref path, ..) => {
|
2019-09-16 19:08:35 +01:00
|
|
|
match self.tables.expr_ty_adjusted(&hir_node).kind {
|
2018-08-22 01:35:02 +01:00
|
|
|
ty::Adt(def, _) if !def.is_enum() => {
|
2018-09-10 12:54:36 +12:00
|
|
|
let sub_span = path.segments.last().unwrap().ident.span;
|
|
|
|
filter!(self.span_utils, sub_span);
|
|
|
|
let span = self.span_from_span(sub_span);
|
2017-06-08 14:45:15 +12:00
|
|
|
Some(Data::RefData(Ref {
|
|
|
|
kind: RefKind::Type,
|
|
|
|
span,
|
|
|
|
ref_id: id_from_def_id(def.did),
|
2015-06-15 10:06:01 +12:00
|
|
|
}))
|
2015-06-09 09:51:54 +12:00
|
|
|
}
|
|
|
|
_ => {
|
2016-09-06 01:26:02 +03:00
|
|
|
// FIXME ty could legitimately be an enum, but then we will fail
|
2015-06-15 10:06:01 +12:00
|
|
|
// later if we try to look up the fields.
|
2016-09-06 01:26:02 +03:00
|
|
|
debug!("expected struct or union, found {:?}", ty);
|
2015-06-15 10:06:01 +12:00
|
|
|
None
|
2015-06-09 09:51:54 +12:00
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
2017-11-06 15:52:42 +13:00
|
|
|
ast::ExprKind::MethodCall(ref seg, ..) => {
|
2020-03-27 16:43:20 +01:00
|
|
|
let expr_hir_id = self.tcx.hir().definitions().node_id_to_hir_id(expr.id);
|
2019-03-15 17:42:34 +01:00
|
|
|
let method_id = match self.tables.type_dependent_def_id(expr_hir_id) {
|
|
|
|
Some(id) => id,
|
2017-11-08 10:08:19 +13:00
|
|
|
None => {
|
2019-07-23 21:26:01 +02:00
|
|
|
debug!("could not resolve method id for {:?}", expr);
|
2017-11-08 10:08:19 +13:00
|
|
|
return None;
|
|
|
|
}
|
|
|
|
};
|
2016-11-10 02:06:34 +02:00
|
|
|
let (def_id, decl_id) = match self.tcx.associated_item(method_id).container {
|
2015-07-07 11:42:43 +12:00
|
|
|
ty::ImplContainer(_) => (Some(method_id), None),
|
2015-09-02 15:37:07 +12:00
|
|
|
ty::TraitContainer(_) => (None, Some(method_id)),
|
2015-07-07 11:42:43 +12:00
|
|
|
};
|
2018-03-19 03:54:56 +03:00
|
|
|
let sub_span = seg.ident.span;
|
2018-09-10 12:54:36 +12:00
|
|
|
filter!(self.span_utils, sub_span);
|
2017-11-06 15:52:42 +13:00
|
|
|
let span = self.span_from_span(sub_span);
|
2017-06-08 14:45:15 +12:00
|
|
|
Some(Data::RefData(Ref {
|
|
|
|
kind: RefKind::Function,
|
|
|
|
span,
|
2020-03-29 20:19:14 +02:00
|
|
|
ref_id: def_id.or(decl_id).map(id_from_def_id).unwrap_or_else(null_id),
|
2015-07-07 11:42:43 +12:00
|
|
|
}))
|
|
|
|
}
|
2016-02-08 16:05:05 +01:00
|
|
|
ast::ExprKind::Path(_, ref path) => {
|
2020-03-22 12:43:19 +01:00
|
|
|
self.get_path_data(expr.id, path).map(Data::RefData)
|
2015-07-08 14:30:18 +12:00
|
|
|
}
|
2015-05-05 19:27:44 +12:00
|
|
|
_ => {
|
2015-05-11 08:35:08 +12:00
|
|
|
// FIXME
|
2016-03-28 23:21:01 +02:00
|
|
|
bug!();
|
2015-05-05 19:27:44 +12:00
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2019-06-21 08:57:34 +02:00
|
|
|
pub fn get_path_res(&self, id: NodeId) -> Res {
|
2020-03-27 16:43:20 +01:00
|
|
|
let hir_id = self.tcx.hir().node_id_to_hir_id(id);
|
2019-06-20 10:39:19 +02:00
|
|
|
match self.tcx.hir().get(hir_id) {
|
2019-04-20 19:36:05 +03:00
|
|
|
Node::TraitRef(tr) => tr.path.res,
|
2016-11-25 13:21:19 +02:00
|
|
|
|
2019-12-22 17:42:04 -05:00
|
|
|
Node::Item(&hir::Item { kind: hir::ItemKind::Use(path, _), .. }) => path.res,
|
|
|
|
Node::Visibility(&Spanned {
|
|
|
|
node: hir::VisibilityKind::Restricted { ref path, .. },
|
2017-11-08 10:43:05 +13:00
|
|
|
..
|
2019-11-28 19:28:50 +01:00
|
|
|
}) => path.res,
|
2016-11-25 13:21:19 +02:00
|
|
|
|
2019-12-22 17:42:04 -05:00
|
|
|
Node::PathSegment(seg) => match seg.res {
|
|
|
|
Some(res) if res != Res::Err => res,
|
|
|
|
_ => {
|
|
|
|
let parent_node = self.tcx.hir().get_parent_node(hir_id);
|
2020-03-27 16:43:20 +01:00
|
|
|
self.get_path_res(self.tcx.hir().hir_id_to_node_id(parent_node))
|
save-analysis: Get path def from parent in case there's no def for the path itself.
This fixes #57462.
The relevant part from the hir type collector is:
```
DEBUG 2019-01-09T15:42:58Z: rustc::hir::map::collector: hir_map: NodeId(32) => Entry { parent: NodeId(33), dep_node: 4294967040, node: Expr(expr(32: <Foo>::new)) }
DEBUG 2019-01-09T15:42:58Z: rustc::hir::map::collector: hir_map: NodeId(48) => Entry { parent: NodeId(32), dep_node: 4294967040, node: Ty(type(Foo)) }
DEBUG 2019-01-09T15:42:58Z: rustc::hir::map::collector: hir_map: NodeId(30) => Entry { parent: NodeId(48), dep_node: 4294967040, node: PathSegment(PathSegment { ident: Foo#0, id: Some(NodeId(30)), def: Some(Err), args: None, infer_types: true }) }
DEBUG 2019-01-09T15:42:58Z: rustc::hir::map::collector: hir_map: NodeId(31) => Entry { parent: NodeId(32), dep_node: 4294967040, node: PathSegment(PathSegment { ident: new#0, id: Some(NodeId(31)), def: Some(Err), args: None, infer_types: true }) }
```
We have the right ID when looking for NodeId(31) and try with NodeId(32) (which
is the right thing to look for) from get_path_data, but not for the segments
that we write from `write_sub_paths_truncated`.
Basically `process_path` takes an id which is always the parent, and that we
fall back to in `get_path_data()`, so we get the right result for the last path
segment, but not for the other segments that get written to from
`write_sub_paths_truncated`.
I think we can stop passing the explicit id around to `get_path_data` now, will
consider sending that as a followup.
2019-01-09 17:31:16 +01:00
|
|
|
}
|
2019-12-22 17:42:04 -05:00
|
|
|
},
|
2019-02-07 16:03:57 +11:00
|
|
|
|
2019-12-22 17:42:04 -05:00
|
|
|
Node::Expr(&hir::Expr { kind: hir::ExprKind::Struct(ref qpath, ..), .. }) => {
|
2019-04-20 19:36:05 +03:00
|
|
|
self.tables.qpath_res(qpath, hir_id)
|
2019-02-07 16:03:57 +11:00
|
|
|
}
|
|
|
|
|
2019-12-22 17:42:04 -05:00
|
|
|
Node::Expr(&hir::Expr { kind: hir::ExprKind::Path(ref qpath), .. })
|
2020-04-16 17:38:52 -07:00
|
|
|
| Node::Pat(&hir::Pat {
|
|
|
|
kind:
|
|
|
|
hir::PatKind::Path(ref qpath)
|
|
|
|
| hir::PatKind::Struct(ref qpath, ..)
|
|
|
|
| hir::PatKind::TupleStruct(ref qpath, ..),
|
|
|
|
..
|
|
|
|
})
|
2019-12-22 17:42:04 -05:00
|
|
|
| Node::Ty(&hir::Ty { kind: hir::TyKind::Path(ref qpath), .. }) => {
|
2019-04-20 19:36:05 +03:00
|
|
|
self.tables.qpath_res(qpath, hir_id)
|
2016-11-25 13:21:19 +02:00
|
|
|
}
|
|
|
|
|
2018-08-25 15:56:16 +01:00
|
|
|
Node::Binding(&hir::Pat {
|
2019-12-22 17:42:04 -05:00
|
|
|
kind: hir::PatKind::Binding(_, canonical_id, ..), ..
|
2019-04-20 19:36:05 +03:00
|
|
|
}) => Res::Local(canonical_id),
|
2016-11-25 13:21:19 +02:00
|
|
|
|
2019-04-20 19:36:05 +03:00
|
|
|
_ => Res::Err,
|
2016-11-24 07:50:22 +13:00
|
|
|
}
|
2016-11-25 13:21:19 +02:00
|
|
|
}
|
2016-11-24 07:50:22 +13:00
|
|
|
|
2018-11-19 16:28:57 +13:00
|
|
|
pub fn get_path_data(&self, id: NodeId, path: &ast::Path) -> Option<Ref> {
|
2019-12-22 17:42:04 -05:00
|
|
|
path.segments.last().and_then(|seg| {
|
|
|
|
self.get_path_segment_data(seg).or_else(|| self.get_path_segment_data_with_id(seg, id))
|
|
|
|
})
|
2018-09-10 15:26:47 +12:00
|
|
|
}
|
|
|
|
|
|
|
|
pub fn get_path_segment_data(&self, path_seg: &ast::PathSegment) -> Option<Ref> {
|
2018-11-19 16:28:57 +13:00
|
|
|
self.get_path_segment_data_with_id(path_seg, path_seg.id)
|
|
|
|
}
|
|
|
|
|
|
|
|
fn get_path_segment_data_with_id(
|
|
|
|
&self,
|
|
|
|
path_seg: &ast::PathSegment,
|
|
|
|
id: NodeId,
|
|
|
|
) -> Option<Ref> {
|
2017-11-01 17:59:06 +13:00
|
|
|
// Returns true if the path is function type sugar, e.g., `Fn(A) -> B`.
|
2018-09-10 15:26:47 +12:00
|
|
|
fn fn_type(seg: &ast::PathSegment) -> bool {
|
|
|
|
if let Some(ref generic_args) = seg.args {
|
2018-05-16 12:57:45 +01:00
|
|
|
if let ast::GenericArgs::Parenthesized(_) = **generic_args {
|
2017-11-01 17:59:06 +13:00
|
|
|
return true;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
false
|
|
|
|
}
|
|
|
|
|
2018-11-19 16:28:57 +13:00
|
|
|
if id == DUMMY_NODE_ID {
|
2018-10-11 21:15:18 +13:00
|
|
|
return None;
|
|
|
|
}
|
|
|
|
|
2019-06-21 08:57:34 +02:00
|
|
|
let res = self.get_path_res(id);
|
2018-09-10 15:26:47 +12:00
|
|
|
let span = path_seg.ident.span;
|
|
|
|
filter!(self.span_utils, span);
|
|
|
|
let span = self.span_from_span(span);
|
2017-11-06 15:52:42 +13:00
|
|
|
|
2019-04-20 19:36:05 +03:00
|
|
|
match res {
|
2019-12-22 17:42:04 -05:00
|
|
|
Res::Local(id) => Some(Ref {
|
|
|
|
kind: RefKind::Variable,
|
|
|
|
span,
|
2020-03-27 16:43:20 +01:00
|
|
|
ref_id: id_from_node_id(self.tcx.hir().hir_id_to_node_id(id), self),
|
2019-12-22 17:42:04 -05:00
|
|
|
}),
|
2019-04-20 19:36:05 +03:00
|
|
|
Res::Def(HirDefKind::Trait, def_id) if fn_type(path_seg) => {
|
2019-12-22 17:42:04 -05:00
|
|
|
Some(Ref { kind: RefKind::Type, span, ref_id: id_from_def_id(def_id) })
|
2017-11-01 17:59:06 +13:00
|
|
|
}
|
2020-04-16 17:38:52 -07:00
|
|
|
Res::Def(
|
|
|
|
HirDefKind::Struct
|
|
|
|
| HirDefKind::Variant
|
|
|
|
| HirDefKind::Union
|
|
|
|
| HirDefKind::Enum
|
|
|
|
| HirDefKind::TyAlias
|
|
|
|
| HirDefKind::ForeignTy
|
|
|
|
| HirDefKind::TraitAlias
|
|
|
|
| HirDefKind::AssocOpaqueTy
|
|
|
|
| HirDefKind::AssocTy
|
|
|
|
| HirDefKind::Trait
|
|
|
|
| HirDefKind::OpaqueTy
|
|
|
|
| HirDefKind::TyParam,
|
|
|
|
def_id,
|
|
|
|
) => Some(Ref { kind: RefKind::Type, span, ref_id: id_from_def_id(def_id) }),
|
2019-04-20 19:36:05 +03:00
|
|
|
Res::Def(HirDefKind::ConstParam, def_id) => {
|
2019-12-22 17:42:04 -05:00
|
|
|
Some(Ref { kind: RefKind::Variable, span, ref_id: id_from_def_id(def_id) })
|
2019-02-05 16:51:49 +01:00
|
|
|
}
|
2019-04-20 19:36:05 +03:00
|
|
|
Res::Def(HirDefKind::Ctor(CtorOf::Struct, ..), def_id) => {
|
2017-11-02 11:28:13 +13:00
|
|
|
// This is a reference to a tuple struct where the def_id points
|
|
|
|
// to an invisible constructor function. That is not a very useful
|
|
|
|
// def, so adjust to point to the tuple struct itself.
|
2018-12-19 12:20:59 +02:00
|
|
|
let parent_def_id = self.tcx.parent(def_id).unwrap();
|
2019-12-22 17:42:04 -05:00
|
|
|
Some(Ref { kind: RefKind::Type, span, ref_id: id_from_def_id(parent_def_id) })
|
2017-11-02 11:28:13 +13:00
|
|
|
}
|
2020-04-16 17:38:52 -07:00
|
|
|
Res::Def(
|
|
|
|
HirDefKind::Static
|
|
|
|
| HirDefKind::Const
|
|
|
|
| HirDefKind::AssocConst
|
|
|
|
| HirDefKind::Ctor(..),
|
|
|
|
_,
|
|
|
|
) => Some(Ref { kind: RefKind::Variable, span, ref_id: id_from_def_id(res.def_id()) }),
|
2020-03-03 12:29:07 -06:00
|
|
|
Res::Def(HirDefKind::AssocFn, decl_id) => {
|
2015-08-16 09:06:23 -04:00
|
|
|
let def_id = if decl_id.is_local() {
|
2016-11-10 02:06:34 +02:00
|
|
|
let ti = self.tcx.associated_item(decl_id);
|
2020-02-17 13:09:01 -08:00
|
|
|
|
2017-11-08 10:43:05 +13:00
|
|
|
self.tcx
|
|
|
|
.associated_items(ti.container.id())
|
2020-02-17 13:09:01 -08:00
|
|
|
.filter_by_name_unhygienic(ti.ident.name)
|
|
|
|
.find(|item| item.defaultness.has_value())
|
2016-11-10 02:06:34 +02:00
|
|
|
.map(|item| item.def_id)
|
2015-07-08 14:30:18 +12:00
|
|
|
} else {
|
|
|
|
None
|
|
|
|
};
|
2017-06-08 14:45:15 +12:00
|
|
|
Some(Ref {
|
|
|
|
kind: RefKind::Function,
|
|
|
|
span,
|
|
|
|
ref_id: id_from_def_id(def_id.unwrap_or(decl_id)),
|
|
|
|
})
|
2015-09-02 15:37:07 +12:00
|
|
|
}
|
2019-04-20 19:36:05 +03:00
|
|
|
Res::Def(HirDefKind::Fn, def_id) => {
|
2019-12-22 17:42:04 -05:00
|
|
|
Some(Ref { kind: RefKind::Function, span, ref_id: id_from_def_id(def_id) })
|
2015-07-08 14:30:18 +12:00
|
|
|
}
|
2019-04-20 19:36:05 +03:00
|
|
|
Res::Def(HirDefKind::Mod, def_id) => {
|
2019-12-22 17:42:04 -05:00
|
|
|
Some(Ref { kind: RefKind::Mod, span, ref_id: id_from_def_id(def_id) })
|
2015-07-25 17:05:34 +12:00
|
|
|
}
|
2020-03-16 10:01:03 -05:00
|
|
|
|
|
|
|
Res::Def(
|
|
|
|
HirDefKind::Macro(..)
|
|
|
|
| HirDefKind::ExternCrate
|
|
|
|
| HirDefKind::ForeignMod
|
|
|
|
| HirDefKind::LifetimeParam
|
|
|
|
| HirDefKind::AnonConst
|
|
|
|
| HirDefKind::Use
|
|
|
|
| HirDefKind::Field
|
|
|
|
| HirDefKind::GlobalAsm
|
|
|
|
| HirDefKind::Impl
|
|
|
|
| HirDefKind::Closure,
|
|
|
|
_,
|
|
|
|
)
|
|
|
|
| Res::PrimTy(..)
|
2019-12-22 17:42:04 -05:00
|
|
|
| Res::SelfTy(..)
|
|
|
|
| Res::ToolMod
|
|
|
|
| Res::NonMacroAttr(..)
|
|
|
|
| Res::SelfCtor(..)
|
|
|
|
| Res::Err => None,
|
2015-07-08 14:30:18 +12:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2017-11-08 10:43:05 +13:00
|
|
|
pub fn get_field_ref_data(
|
|
|
|
&self,
|
|
|
|
field_ref: &ast::Field,
|
|
|
|
variant: &ty::VariantDef,
|
|
|
|
) -> Option<Ref> {
|
2018-09-10 12:54:36 +12:00
|
|
|
filter!(self.span_utils, field_ref.ident.span);
|
2018-09-12 14:05:08 +12:00
|
|
|
self.tcx.find_field_index(field_ref.ident, variant).map(|index| {
|
|
|
|
let span = self.span_from_span(field_ref.ident.span);
|
2019-12-22 17:42:04 -05:00
|
|
|
Ref { kind: RefKind::Variable, span, ref_id: id_from_def_id(variant.fields[index].did) }
|
2016-01-22 11:58:09 +13:00
|
|
|
})
|
2015-06-09 09:51:54 +12:00
|
|
|
}
|
|
|
|
|
2017-06-08 14:45:15 +12:00
|
|
|
/// Attempt to return MacroRef for any AST node.
|
2016-01-29 20:22:55 +13:00
|
|
|
///
|
|
|
|
/// For a given piece of AST defined by the supplied Span and NodeId,
|
2019-02-08 14:53:55 +01:00
|
|
|
/// returns `None` if the node is not macro-generated or the span is malformed,
|
2017-06-08 14:45:15 +12:00
|
|
|
/// else uses the expansion callsite and callee to return some MacroRef.
|
|
|
|
pub fn get_macro_use_data(&self, span: Span) -> Option<MacroRef> {
|
2016-01-29 20:22:55 +13:00
|
|
|
if !generated_code(span) {
|
|
|
|
return None;
|
|
|
|
}
|
|
|
|
// Note we take care to use the source callsite/callee, to handle
|
|
|
|
// nested expansions and ensure we only generate data for source-visible
|
|
|
|
// macro uses.
|
2017-03-17 04:04:41 +00:00
|
|
|
let callsite = span.source_callsite();
|
2017-06-08 14:45:15 +12:00
|
|
|
let callsite_span = self.span_from_span(callsite);
|
2017-10-15 23:27:17 +02:00
|
|
|
let callee = span.source_callee()?;
|
2016-01-29 20:22:55 +13:00
|
|
|
|
2020-01-20 22:22:36 +02:00
|
|
|
let mac_name = match callee.kind {
|
|
|
|
ExpnKind::Macro(mac_kind, name) => match mac_kind {
|
|
|
|
MacroKind::Bang => name,
|
|
|
|
|
|
|
|
// Ignore attribute macros, their spans are usually mangled
|
|
|
|
// FIXME(eddyb) is this really the case anymore?
|
|
|
|
MacroKind::Attr | MacroKind::Derive => return None,
|
|
|
|
},
|
|
|
|
|
|
|
|
// These are not macros.
|
|
|
|
// FIXME(eddyb) maybe there is a way to handle them usefully?
|
|
|
|
ExpnKind::Root | ExpnKind::AstPass(_) | ExpnKind::Desugaring(_) => return None,
|
|
|
|
};
|
2016-01-29 20:22:55 +13:00
|
|
|
|
2019-06-30 03:05:52 +03:00
|
|
|
let callee_span = self.span_from_span(callee.def_site);
|
2017-06-08 14:45:15 +12:00
|
|
|
Some(MacroRef {
|
|
|
|
span: callsite_span,
|
2020-01-20 22:22:36 +02:00
|
|
|
qualname: mac_name.to_string(), // FIXME: generate the real qualname
|
2017-06-08 14:45:15 +12:00
|
|
|
callee_span,
|
2016-01-29 20:22:55 +13:00
|
|
|
})
|
|
|
|
}
|
|
|
|
|
2019-09-14 20:53:42 +02:00
|
|
|
fn lookup_def_id(&self, ref_id: NodeId) -> Option<DefId> {
|
2019-06-21 08:57:34 +02:00
|
|
|
match self.get_path_res(ref_id) {
|
2019-04-20 19:36:05 +03:00
|
|
|
Res::PrimTy(_) | Res::SelfTy(..) | Res::Err => None,
|
2020-03-01 15:15:29 +09:00
|
|
|
def => def.opt_def_id(),
|
2015-06-05 17:50:04 +12:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2017-07-18 17:54:49 +12:00
|
|
|
fn docs_for_attrs(&self, attrs: &[Attribute]) -> String {
|
|
|
|
let mut result = String::new();
|
|
|
|
|
|
|
|
for attr in attrs {
|
2019-12-07 21:28:29 +03:00
|
|
|
if let Some(val) = attr.doc_str() {
|
|
|
|
if attr.is_doc_comment() {
|
|
|
|
result.push_str(&strip_doc_comment_decoration(&val.as_str()));
|
|
|
|
} else {
|
|
|
|
result.push_str(&val.as_str());
|
|
|
|
}
|
|
|
|
result.push('\n');
|
|
|
|
} else if attr.check_name(sym::doc) {
|
|
|
|
if let Some(meta_list) = attr.meta_item_list() {
|
2019-12-22 17:42:04 -05:00
|
|
|
meta_list
|
|
|
|
.into_iter()
|
|
|
|
.filter(|it| it.check_name(sym::include))
|
|
|
|
.filter_map(|it| it.meta_item_list().map(|l| l.to_owned()))
|
|
|
|
.flat_map(|it| it)
|
|
|
|
.filter(|meta| meta.check_name(sym::contents))
|
|
|
|
.filter_map(|meta| meta.value_str())
|
|
|
|
.for_each(|val| {
|
|
|
|
result.push_str(&val.as_str());
|
|
|
|
result.push('\n');
|
|
|
|
});
|
2017-07-18 17:54:49 +12:00
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
if !self.config.full_docs {
|
|
|
|
if let Some(index) = result.find("\n\n") {
|
|
|
|
result.truncate(index);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
result
|
|
|
|
}
|
2018-02-02 08:29:59 +01:00
|
|
|
|
|
|
|
fn next_impl_id(&self) -> u32 {
|
|
|
|
let next = self.impl_counter.get();
|
|
|
|
self.impl_counter.set(next + 1);
|
|
|
|
next
|
|
|
|
}
|
2015-05-05 18:46:09 +12:00
|
|
|
}
|
|
|
|
|
2016-05-11 13:46:39 -07:00
|
|
|
fn make_signature(decl: &ast::FnDecl, generics: &ast::Generics) -> String {
|
2016-09-07 12:37:16 +12:00
|
|
|
let mut sig = "fn ".to_owned();
|
2017-10-16 21:07:26 +02:00
|
|
|
if !generics.params.is_empty() {
|
2016-05-11 13:46:39 -07:00
|
|
|
sig.push('<');
|
2019-12-22 17:42:04 -05:00
|
|
|
sig.push_str(
|
|
|
|
&generics
|
|
|
|
.params
|
|
|
|
.iter()
|
|
|
|
.map(|param| param.ident.to_string())
|
|
|
|
.collect::<Vec<_>>()
|
|
|
|
.join(", "),
|
|
|
|
);
|
2016-05-11 13:46:39 -07:00
|
|
|
sig.push_str("> ");
|
|
|
|
}
|
|
|
|
sig.push('(');
|
2019-12-22 17:42:04 -05:00
|
|
|
sig.push_str(&decl.inputs.iter().map(param_to_string).collect::<Vec<_>>().join(", "));
|
2016-05-11 13:46:39 -07:00
|
|
|
sig.push(')');
|
|
|
|
match decl.output {
|
2020-02-15 12:10:59 +09:00
|
|
|
ast::FnRetTy::Default(_) => sig.push_str(" -> ()"),
|
|
|
|
ast::FnRetTy::Ty(ref t) => sig.push_str(&format!(" -> {}", ty_to_string(t))),
|
2016-05-11 13:46:39 -07:00
|
|
|
}
|
|
|
|
|
|
|
|
sig
|
|
|
|
}
|
|
|
|
|
2017-11-01 17:59:06 +13:00
|
|
|
// An AST visitor for collecting paths (e.g., the names of structs) and formal
|
|
|
|
// variables (idents) from patterns.
|
|
|
|
struct PathCollector<'l> {
|
|
|
|
collected_paths: Vec<(NodeId, &'l ast::Path)>,
|
2018-03-19 03:54:56 +03:00
|
|
|
collected_idents: Vec<(NodeId, ast::Ident, ast::Mutability)>,
|
2015-05-05 22:03:20 +12:00
|
|
|
}
|
|
|
|
|
2017-11-01 17:59:06 +13:00
|
|
|
impl<'l> PathCollector<'l> {
|
|
|
|
fn new() -> PathCollector<'l> {
|
2019-12-22 17:42:04 -05:00
|
|
|
PathCollector { collected_paths: vec![], collected_idents: vec![] }
|
2015-05-05 22:03:20 +12:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2019-06-16 12:33:47 +03:00
|
|
|
impl<'l> Visitor<'l> for PathCollector<'l> {
|
|
|
|
fn visit_pat(&mut self, p: &'l ast::Pat) {
|
2019-09-26 16:18:31 +01:00
|
|
|
match p.kind {
|
2016-08-26 19:23:42 +03:00
|
|
|
PatKind::Struct(ref path, ..) => {
|
2017-11-01 17:59:06 +13:00
|
|
|
self.collected_paths.push((p.id, path));
|
2015-05-05 22:03:20 +12:00
|
|
|
}
|
2017-11-08 10:43:05 +13:00
|
|
|
PatKind::TupleStruct(ref path, ..) | PatKind::Path(_, ref path) => {
|
2017-11-01 17:59:06 +13:00
|
|
|
self.collected_paths.push((p.id, path));
|
2015-05-05 22:03:20 +12:00
|
|
|
}
|
2018-03-18 16:47:09 +03:00
|
|
|
PatKind::Ident(bm, ident, _) => {
|
2017-11-08 10:43:05 +13:00
|
|
|
debug!(
|
|
|
|
"PathCollector, visit ident in pat {}: {:?} {:?}",
|
2019-12-22 17:42:04 -05:00
|
|
|
ident, p.span, ident.span
|
2017-11-08 10:43:05 +13:00
|
|
|
);
|
2015-05-05 22:03:20 +12:00
|
|
|
let immut = match bm {
|
|
|
|
// Even if the ref is mut, you can't change the ref, only
|
|
|
|
// the data pointed at, so showing the initialising expression
|
|
|
|
// is still worthwhile.
|
2019-12-16 17:28:40 +01:00
|
|
|
ast::BindingMode::ByRef(_) => ast::Mutability::Not,
|
2015-12-18 14:23:01 +01:00
|
|
|
ast::BindingMode::ByValue(mt) => mt,
|
2015-05-05 22:03:20 +12:00
|
|
|
};
|
2019-12-22 17:42:04 -05:00
|
|
|
self.collected_idents.push((p.id, ident, immut));
|
2015-05-05 22:03:20 +12:00
|
|
|
}
|
|
|
|
_ => {}
|
|
|
|
}
|
|
|
|
visit::walk_pat(self, p);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2017-03-23 16:32:49 +13:00
|
|
|
/// Defines what to do with the results of saving the analysis.
|
|
|
|
pub trait SaveHandler {
|
2019-12-22 17:42:04 -05:00
|
|
|
fn save(&mut self, save_ctxt: &SaveContext<'_, '_>, analysis: &Analysis);
|
2017-03-23 16:32:49 +13:00
|
|
|
}
|
2015-12-22 16:35:02 -05:00
|
|
|
|
2017-03-23 16:32:49 +13:00
|
|
|
/// Dump the save-analysis results to a file.
|
|
|
|
pub struct DumpHandler<'a> {
|
|
|
|
odir: Option<&'a Path>,
|
2017-11-08 10:43:05 +13:00
|
|
|
cratename: String,
|
2017-03-23 16:32:49 +13:00
|
|
|
}
|
2014-02-05 17:31:33 +13:00
|
|
|
|
2017-03-23 16:32:49 +13:00
|
|
|
impl<'a> DumpHandler<'a> {
|
2017-07-19 11:52:09 +12:00
|
|
|
pub fn new(odir: Option<&'a Path>, cratename: &str) -> DumpHandler<'a> {
|
2019-12-22 17:42:04 -05:00
|
|
|
DumpHandler { odir, cratename: cratename.to_owned() }
|
2017-03-23 16:32:49 +13:00
|
|
|
}
|
2014-02-05 17:31:33 +13:00
|
|
|
|
2019-06-26 17:22:39 -07:00
|
|
|
fn output_file(&self, ctx: &SaveContext<'_, '_>) -> (BufWriter<File>, PathBuf) {
|
2017-07-18 17:44:19 +12:00
|
|
|
let sess = &ctx.tcx.sess;
|
|
|
|
let file_name = match ctx.config.output_file {
|
|
|
|
Some(ref s) => PathBuf::from(s),
|
|
|
|
None => {
|
|
|
|
let mut root_path = match self.odir {
|
|
|
|
Some(val) => val.join("save-analysis"),
|
|
|
|
None => PathBuf::from("save-analysis-temp"),
|
|
|
|
};
|
2014-02-05 17:31:33 +13:00
|
|
|
|
2017-07-18 17:44:19 +12:00
|
|
|
if let Err(e) = std::fs::create_dir_all(&root_path) {
|
|
|
|
error!("Could not create directory {}: {}", root_path.display(), e);
|
|
|
|
}
|
2017-03-23 16:32:49 +13:00
|
|
|
|
2019-12-22 17:42:04 -05:00
|
|
|
let executable =
|
|
|
|
sess.crate_types.borrow().iter().any(|ct| *ct == CrateType::Executable);
|
|
|
|
let mut out_name = if executable { String::new() } else { "lib".to_owned() };
|
2017-07-18 17:44:19 +12:00
|
|
|
out_name.push_str(&self.cratename);
|
|
|
|
out_name.push_str(&sess.opts.cg.extra_filename);
|
2017-07-19 11:52:09 +12:00
|
|
|
out_name.push_str(".json");
|
2017-07-18 17:44:19 +12:00
|
|
|
root_path.push(&out_name);
|
2017-03-23 16:32:49 +13:00
|
|
|
|
2017-07-18 17:44:19 +12:00
|
|
|
root_path
|
|
|
|
}
|
2017-03-23 16:32:49 +13:00
|
|
|
};
|
2017-07-18 17:44:19 +12:00
|
|
|
|
|
|
|
info!("Writing output to {}", file_name.display());
|
|
|
|
|
2019-12-22 17:42:04 -05:00
|
|
|
let output_file = BufWriter::new(File::create(&file_name).unwrap_or_else(|e| {
|
|
|
|
sess.fatal(&format!("Could not open {}: {}", file_name.display(), e))
|
|
|
|
}));
|
2017-07-18 17:44:19 +12:00
|
|
|
|
2019-05-22 10:37:33 -07:00
|
|
|
(output_file, file_name)
|
2014-02-05 17:31:33 +13:00
|
|
|
}
|
2017-03-23 16:32:49 +13:00
|
|
|
}
|
|
|
|
|
2019-07-26 20:15:31 -04:00
|
|
|
impl SaveHandler for DumpHandler<'_> {
|
2019-12-22 17:42:04 -05:00
|
|
|
fn save(&mut self, save_ctxt: &SaveContext<'_, '_>, analysis: &Analysis) {
|
2019-05-22 10:37:33 -07:00
|
|
|
let sess = &save_ctxt.tcx.sess;
|
2019-07-25 12:24:48 -04:00
|
|
|
let (output, file_name) = self.output_file(&save_ctxt);
|
2019-07-26 20:15:31 -04:00
|
|
|
if let Err(e) = serde_json::to_writer(output, &analysis) {
|
2019-07-26 18:36:10 -04:00
|
|
|
error!("Can't serialize save-analysis: {:?}", e);
|
|
|
|
}
|
2019-05-22 10:37:33 -07:00
|
|
|
|
2019-07-17 12:52:56 -07:00
|
|
|
if sess.opts.json_artifact_notifications {
|
2019-12-22 17:42:04 -05:00
|
|
|
sess.parse_sess.span_diagnostic.emit_artifact_notification(&file_name, "save-analysis");
|
2019-05-22 10:37:33 -07:00
|
|
|
}
|
2014-02-05 17:31:33 +13:00
|
|
|
}
|
2017-03-23 16:32:49 +13:00
|
|
|
}
|
2014-02-05 17:31:33 +13:00
|
|
|
|
2017-03-23 16:32:49 +13:00
|
|
|
/// Call a callback with the results of save-analysis.
|
|
|
|
pub struct CallbackHandler<'b> {
|
2018-07-12 10:26:22 +02:00
|
|
|
pub callback: &'b mut dyn FnMut(&rls_data::Analysis),
|
2017-03-23 16:32:49 +13:00
|
|
|
}
|
|
|
|
|
2019-07-26 20:15:31 -04:00
|
|
|
impl SaveHandler for CallbackHandler<'_> {
|
2019-12-22 17:42:04 -05:00
|
|
|
fn save(&mut self, _: &SaveContext<'_, '_>, analysis: &Analysis) {
|
2019-07-26 20:15:31 -04:00
|
|
|
(self.callback)(analysis)
|
2017-03-23 16:32:49 +13:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2017-11-08 10:43:05 +13:00
|
|
|
pub fn process_crate<'l, 'tcx, H: SaveHandler>(
|
2019-06-14 00:48:52 +03:00
|
|
|
tcx: TyCtxt<'tcx>,
|
2017-11-08 10:43:05 +13:00
|
|
|
krate: &ast::Crate,
|
|
|
|
cratename: &str,
|
2018-09-24 16:28:53 +02:00
|
|
|
input: &'l Input,
|
2017-11-08 10:43:05 +13:00
|
|
|
config: Option<Config>,
|
|
|
|
mut handler: H,
|
|
|
|
) {
|
2017-12-28 06:05:45 +01:00
|
|
|
tcx.dep_graph.with_ignore(|| {
|
|
|
|
info!("Dumping crate {}", cratename);
|
2017-03-23 16:32:49 +13:00
|
|
|
|
2019-01-07 23:55:55 +01:00
|
|
|
// Privacy checking requires and is done after type checking; use a
|
|
|
|
// fallback in case the access levels couldn't have been correctly computed.
|
|
|
|
let access_levels = match tcx.sess.compile_status() {
|
|
|
|
Ok(..) => tcx.privacy_access_levels(LOCAL_CRATE),
|
2018-12-01 15:34:04 +01:00
|
|
|
Err(..) => tcx.arena.alloc(AccessLevels::default()),
|
2019-01-07 23:55:55 +01:00
|
|
|
};
|
|
|
|
|
2017-12-28 06:05:45 +01:00
|
|
|
let save_ctxt = SaveContext {
|
|
|
|
tcx,
|
|
|
|
tables: &ty::TypeckTables::empty(None),
|
2019-10-05 01:25:20 +02:00
|
|
|
empty_tables: &ty::TypeckTables::empty(None),
|
2019-01-07 23:55:55 +01:00
|
|
|
access_levels: &access_levels,
|
2017-12-28 06:05:45 +01:00
|
|
|
span_utils: SpanUtils::new(&tcx.sess),
|
|
|
|
config: find_config(config),
|
2018-02-02 08:29:59 +01:00
|
|
|
impl_counter: Cell::new(0),
|
2017-12-28 06:05:45 +01:00
|
|
|
};
|
2014-02-05 17:31:33 +13:00
|
|
|
|
2019-07-26 20:15:31 -04:00
|
|
|
let mut visitor = DumpVisitor::new(save_ctxt);
|
|
|
|
|
|
|
|
visitor.dump_crate_info(cratename, krate);
|
|
|
|
visitor.dump_compilation_options(input, cratename);
|
|
|
|
visit::walk_crate(&mut visitor, krate);
|
|
|
|
|
|
|
|
handler.save(&visitor.save_ctxt, &visitor.analysis())
|
2017-12-28 06:05:45 +01:00
|
|
|
})
|
2014-02-05 17:31:33 +13:00
|
|
|
}
|
2015-05-04 22:33:07 +12:00
|
|
|
|
2017-07-18 17:44:19 +12:00
|
|
|
fn find_config(supplied: Option<Config>) -> Config {
|
|
|
|
if let Some(config) = supplied {
|
|
|
|
return config;
|
|
|
|
}
|
2019-04-17 21:34:35 +02:00
|
|
|
|
2017-07-18 17:44:19 +12:00
|
|
|
match env::var_os("RUST_SAVE_ANALYSIS_CONFIG") {
|
|
|
|
None => Config::default(),
|
2019-12-22 17:42:04 -05:00
|
|
|
Some(config) => config
|
|
|
|
.to_str()
|
2019-04-17 21:34:35 +02:00
|
|
|
.ok_or(())
|
|
|
|
.map_err(|_| error!("`RUST_SAVE_ANALYSIS_CONFIG` isn't UTF-8"))
|
2019-12-22 17:42:04 -05:00
|
|
|
.and_then(|cfg| {
|
|
|
|
serde_json::from_str(cfg)
|
|
|
|
.map_err(|_| error!("Could not deserialize save-analysis config"))
|
|
|
|
})
|
|
|
|
.unwrap_or_default(),
|
2017-07-18 17:44:19 +12:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2015-05-04 22:33:07 +12:00
|
|
|
// Utility functions for the module.
|
|
|
|
|
|
|
|
// Helper function to escape quotes in a string
|
|
|
|
fn escape(s: String) -> String {
|
|
|
|
s.replace("\"", "\"\"")
|
|
|
|
}
|
|
|
|
|
2016-01-22 11:58:09 +13:00
|
|
|
// Helper function to determine if a span came from a
|
|
|
|
// macro expansion or syntax extension.
|
2017-05-31 16:13:27 +12:00
|
|
|
fn generated_code(span: Span) -> bool {
|
2019-08-11 01:08:30 +03:00
|
|
|
span.from_expansion() || span.is_dummy()
|
2015-05-04 22:33:07 +12:00
|
|
|
}
|
2017-05-31 16:13:27 +12:00
|
|
|
|
|
|
|
// DefId::index is a newtype and so the JSON serialisation is ugly. Therefore
|
|
|
|
// we use our own Id which is the same, but without the newtype.
|
|
|
|
fn id_from_def_id(id: DefId) -> rls_data::Id {
|
2019-12-22 17:42:04 -05:00
|
|
|
rls_data::Id { krate: id.krate.as_u32(), index: id.index.as_u32() }
|
2017-05-31 16:13:27 +12:00
|
|
|
}
|
|
|
|
|
2019-02-07 01:02:00 +09:00
|
|
|
fn id_from_node_id(id: NodeId, scx: &SaveContext<'_, '_>) -> rls_data::Id {
|
2019-06-27 11:49:08 +02:00
|
|
|
let def_id = scx.tcx.hir().opt_local_def_id_from_node_id(id);
|
2020-04-08 12:22:19 +01:00
|
|
|
def_id.map(|id| id_from_def_id(id.to_def_id())).unwrap_or_else(|| {
|
2017-04-29 14:39:47 +03:00
|
|
|
// Create a *fake* `DefId` out of a `NodeId` by subtracting the `NodeId`
|
|
|
|
// out of the maximum u32 value. This will work unless you have *billions*
|
|
|
|
// of definitions in a single crate (very unlikely to actually happen).
|
2019-12-22 17:42:04 -05:00
|
|
|
rls_data::Id { krate: LOCAL_CRATE.as_u32(), index: !id.as_u32() }
|
2017-04-29 14:39:47 +03:00
|
|
|
})
|
2017-06-08 14:45:15 +12:00
|
|
|
}
|
|
|
|
|
|
|
|
fn null_id() -> rls_data::Id {
|
2019-12-22 17:42:04 -05:00
|
|
|
rls_data::Id { krate: u32::max_value(), index: u32::max_value() }
|
2017-06-08 14:45:15 +12:00
|
|
|
}
|
|
|
|
|
2019-02-07 01:02:00 +09:00
|
|
|
fn lower_attributes(attrs: Vec<Attribute>, scx: &SaveContext<'_, '_>) -> Vec<rls_data::Attribute> {
|
2019-12-22 17:42:04 -05:00
|
|
|
attrs
|
|
|
|
.into_iter()
|
|
|
|
// Only retain real attributes. Doc comments are lowered separately.
|
|
|
|
.filter(|attr| !attr.has_name(sym::doc))
|
|
|
|
.map(|mut attr| {
|
|
|
|
// Remove the surrounding '#[..]' or '#![..]' of the pretty printed
|
|
|
|
// attribute. First normalize all inner attribute (#![..]) to outer
|
|
|
|
// ones (#[..]), then remove the two leading and the one trailing character.
|
|
|
|
attr.style = ast::AttrStyle::Outer;
|
|
|
|
let value = pprust::attribute_to_string(&attr);
|
|
|
|
// This str slicing works correctly, because the leading and trailing characters
|
|
|
|
// are in the ASCII range and thus exactly one byte each.
|
|
|
|
let value = value[2..value.len() - 1].to_string();
|
|
|
|
|
|
|
|
rls_data::Attribute { value, span: scx.span_from_span(attr.span) }
|
|
|
|
})
|
|
|
|
.collect()
|
2017-05-31 16:13:27 +12:00
|
|
|
}
|