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1 | // Copyright 2015 The Rust Project Developers. See the COPYRIGHT |
2 | // file at the top-level directory of this distribution and at | |
3 | // http://rust-lang.org/COPYRIGHT. | |
4 | // | |
5 | // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or | |
6 | // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license | |
7 | // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your | |
8 | // option. This file may not be copied, modified, or distributed | |
9 | // except according to those terms. | |
10 | ||
54a0048b | 11 | //! Write the output of rustc's analysis to an implementor of Dump. The data is |
d9579d0f AL |
12 | //! primarily designed to be used as input to the DXR tool, specifically its |
13 | //! Rust plugin. It could also be used by IDEs or other code browsing, search, or | |
14 | //! cross-referencing tools. | |
15 | //! | |
16 | //! Dumping the analysis is implemented by walking the AST and getting a bunch of | |
17 | //! info out from all over the place. We use Def IDs to identify objects. The | |
18 | //! tricky part is getting syntactic (span, source text) and semantic (reference | |
19 | //! Def IDs) information for parts of expressions which the compiler has discarded. | |
20 | //! E.g., in a path `foo::bar::baz`, the compiler only keeps a span for the whole | |
21 | //! path and a reference to `baz`, but we want spans and references for all three | |
22 | //! idents. | |
23 | //! | |
24 | //! SpanUtils is used to manipulate spans. In particular, to extract sub-spans | |
25 | //! from spans (e.g., the span for `bar` from the above example path). | |
54a0048b SL |
26 | //! DumpVisitor walks the AST and processes it, and an implementor of Dump |
27 | //! is used for recording the output in a format-agnostic way (see CsvDumper | |
28 | //! for an example). | |
d9579d0f | 29 | |
9e0c209e | 30 | use rustc::hir; |
54a0048b | 31 | use rustc::hir::def::Def; |
9e0c209e SL |
32 | use rustc::hir::def_id::{CrateNum, DefId, LOCAL_CRATE}; |
33 | use rustc::hir::map::{Node, NodeItem}; | |
54a0048b | 34 | use rustc::session::Session; |
3157f602 | 35 | use rustc::ty::{self, TyCtxt, ImplOrTraitItem, ImplOrTraitItemContainer}; |
d9579d0f | 36 | |
7453a54e | 37 | use std::collections::HashSet; |
9e0c209e | 38 | use std::collections::hash_map::DefaultHasher; |
54a0048b | 39 | use std::hash::*; |
d9579d0f | 40 | |
9e0c209e | 41 | use syntax::ast::{self, NodeId, PatKind, Attribute, CRATE_NODE_ID}; |
c1a9b12d | 42 | use syntax::parse::token::{self, keywords}; |
d9579d0f | 43 | use syntax::visit::{self, Visitor}; |
a7813a04 | 44 | use syntax::print::pprust::{path_to_string, ty_to_string, bounds_to_string, generics_to_string}; |
d9579d0f | 45 | use syntax::ptr::P; |
3157f602 XL |
46 | use syntax::codemap::Spanned; |
47 | use syntax_pos::*; | |
d9579d0f | 48 | |
9e0c209e | 49 | use super::{escape, generated_code, SaveContext, PathCollector, docs_for_attrs}; |
54a0048b SL |
50 | use super::data::*; |
51 | use super::dump::Dump; | |
9e0c209e | 52 | use super::external_data::{Lower, make_def_id}; |
d9579d0f | 53 | use super::span_utils::SpanUtils; |
54a0048b | 54 | use super::recorder; |
d9579d0f | 55 | |
62682a34 | 56 | macro_rules! down_cast_data { |
54a0048b | 57 | ($id:ident, $kind:ident, $sp:expr) => { |
62682a34 SL |
58 | let $id = if let super::Data::$kind(data) = $id { |
59 | data | |
60 | } else { | |
54a0048b | 61 | span_bug!($sp, "unexpected data kind: {:?}", $id); |
5bcae85e | 62 | }; |
62682a34 SL |
63 | }; |
64 | } | |
d9579d0f | 65 | |
a7813a04 | 66 | pub struct DumpVisitor<'l, 'tcx: 'l, 'll, D: 'll> { |
d9579d0f AL |
67 | save_ctxt: SaveContext<'l, 'tcx>, |
68 | sess: &'l Session, | |
a7813a04 | 69 | tcx: TyCtxt<'l, 'tcx, 'tcx>, |
b039eaaf | 70 | analysis: &'l ty::CrateAnalysis<'l>, |
a7813a04 | 71 | dumper: &'ll mut D, |
d9579d0f AL |
72 | |
73 | span: SpanUtils<'l>, | |
d9579d0f | 74 | |
e9174d1e | 75 | cur_scope: NodeId, |
7453a54e SL |
76 | |
77 | // Set of macro definition (callee) spans, and the set | |
78 | // of macro use (callsite) spans. We store these to ensure | |
79 | // we only write one macro def per unique macro definition, and | |
80 | // one macro use per unique callsite span. | |
81 | mac_defs: HashSet<Span>, | |
82 | mac_uses: HashSet<Span>, | |
d9579d0f AL |
83 | } |
84 | ||
a7813a04 XL |
85 | impl<'l, 'tcx: 'l, 'll, D: Dump + 'll> DumpVisitor<'l, 'tcx, 'll, D> { |
86 | pub fn new(tcx: TyCtxt<'l, 'tcx, 'tcx>, | |
87 | save_ctxt: SaveContext<'l, 'tcx>, | |
b039eaaf | 88 | analysis: &'l ty::CrateAnalysis<'l>, |
a7813a04 XL |
89 | dumper: &'ll mut D) |
90 | -> DumpVisitor<'l, 'tcx, 'll, D> { | |
c1a9b12d | 91 | let span_utils = SpanUtils::new(&tcx.sess); |
54a0048b | 92 | DumpVisitor { |
62682a34 SL |
93 | sess: &tcx.sess, |
94 | tcx: tcx, | |
a7813a04 | 95 | save_ctxt: save_ctxt, |
d9579d0f | 96 | analysis: analysis, |
54a0048b | 97 | dumper: dumper, |
62682a34 | 98 | span: span_utils.clone(), |
9e0c209e | 99 | cur_scope: CRATE_NODE_ID, |
7453a54e SL |
100 | mac_defs: HashSet::new(), |
101 | mac_uses: HashSet::new(), | |
d9579d0f AL |
102 | } |
103 | } | |
104 | ||
e9174d1e | 105 | fn nest<F>(&mut self, scope_id: NodeId, f: F) |
a7813a04 | 106 | where F: FnOnce(&mut DumpVisitor<'l, 'tcx, 'll, D>) |
d9579d0f AL |
107 | { |
108 | let parent_scope = self.cur_scope; | |
109 | self.cur_scope = scope_id; | |
110 | f(self); | |
111 | self.cur_scope = parent_scope; | |
112 | } | |
113 | ||
114 | pub fn dump_crate_info(&mut self, name: &str, krate: &ast::Crate) { | |
92a42be0 | 115 | let source_file = self.tcx.sess.local_crate_source_file.as_ref(); |
54a0048b SL |
116 | let crate_root = source_file.map(|source_file| { |
117 | match source_file.file_name() { | |
92a42be0 SL |
118 | Some(_) => source_file.parent().unwrap().display().to_string(), |
119 | None => source_file.display().to_string(), | |
54a0048b SL |
120 | } |
121 | }); | |
122 | ||
123 | // Info about all the external crates referenced from this crate. | |
124 | let external_crates = self.save_ctxt.get_external_crates().into_iter().map(|c| { | |
a7813a04 | 125 | let lo_loc = self.span.sess.codemap().lookup_char_pos(c.span.lo); |
54a0048b SL |
126 | ExternalCrateData { |
127 | name: c.name, | |
9e0c209e | 128 | num: CrateNum::from_u32(c.number), |
a7813a04 | 129 | file_name: SpanUtils::make_path_string(&lo_loc.file.name), |
54a0048b SL |
130 | } |
131 | }).collect(); | |
92a42be0 | 132 | |
d9579d0f | 133 | // The current crate. |
54a0048b SL |
134 | let data = CratePreludeData { |
135 | crate_name: name.into(), | |
a7813a04 XL |
136 | crate_root: crate_root.unwrap_or("<no source>".to_owned()), |
137 | external_crates: external_crates, | |
138 | span: krate.span, | |
54a0048b | 139 | }; |
d9579d0f | 140 | |
a7813a04 | 141 | self.dumper.crate_prelude(data.lower(self.tcx)); |
d9579d0f AL |
142 | } |
143 | ||
144 | // Return all non-empty prefixes of a path. | |
145 | // For each prefix, we return the span for the last segment in the prefix and | |
146 | // a str representation of the entire prefix. | |
147 | fn process_path_prefixes(&self, path: &ast::Path) -> Vec<(Span, String)> { | |
148 | let spans = self.span.spans_for_path_segments(path); | |
149 | ||
150 | // Paths to enums seem to not match their spans - the span includes all the | |
151 | // variants too. But they seem to always be at the end, so I hope we can cope with | |
152 | // always using the first ones. So, only error out if we don't have enough spans. | |
153 | // What could go wrong...? | |
154 | if spans.len() < path.segments.len() { | |
7453a54e SL |
155 | if generated_code(path.span) { |
156 | return vec!(); | |
157 | } | |
b039eaaf SL |
158 | error!("Mis-calculated spans for path '{}'. Found {} spans, expected {}. Found spans:", |
159 | path_to_string(path), | |
160 | spans.len(), | |
161 | path.segments.len()); | |
d9579d0f AL |
162 | for s in &spans { |
163 | let loc = self.sess.codemap().lookup_char_pos(s.lo); | |
164 | error!(" '{}' in {}, line {}", | |
b039eaaf SL |
165 | self.span.snippet(*s), |
166 | loc.file.name, | |
167 | loc.line); | |
d9579d0f AL |
168 | } |
169 | return vec!(); | |
170 | } | |
171 | ||
172 | let mut result: Vec<(Span, String)> = vec!(); | |
173 | ||
174 | let mut segs = vec!(); | |
62682a34 | 175 | for (i, (seg, span)) in path.segments.iter().zip(&spans).enumerate() { |
d9579d0f | 176 | segs.push(seg.clone()); |
e9174d1e SL |
177 | let sub_path = ast::Path { |
178 | span: *span, // span for the last segment | |
179 | global: path.global, | |
180 | segments: segs, | |
181 | }; | |
d9579d0f AL |
182 | let qualname = if i == 0 && path.global { |
183 | format!("::{}", path_to_string(&sub_path)) | |
184 | } else { | |
185 | path_to_string(&sub_path) | |
186 | }; | |
187 | result.push((*span, qualname)); | |
188 | segs = sub_path.segments; | |
189 | } | |
190 | ||
191 | result | |
192 | } | |
193 | ||
194 | // The global arg allows us to override the global-ness of the path (which | |
195 | // actually means 'does the path start with `::`', rather than 'is the path | |
196 | // semantically global). We use the override for `use` imports (etc.) where | |
197 | // the syntax is non-global, but the semantics are global. | |
198 | fn write_sub_paths(&mut self, path: &ast::Path, global: bool) { | |
199 | let sub_paths = self.process_path_prefixes(path); | |
200 | for (i, &(ref span, ref qualname)) in sub_paths.iter().enumerate() { | |
201 | let qualname = if i == 0 && global && !path.global { | |
202 | format!("::{}", qualname) | |
203 | } else { | |
204 | qualname.clone() | |
205 | }; | |
a7813a04 | 206 | self.dumper.mod_ref(ModRefData { |
54a0048b SL |
207 | span: *span, |
208 | qualname: qualname, | |
209 | scope: self.cur_scope, | |
210 | ref_id: None | |
a7813a04 | 211 | }.lower(self.tcx)); |
d9579d0f AL |
212 | } |
213 | } | |
214 | ||
215 | // As write_sub_paths, but does not process the last ident in the path (assuming it | |
216 | // will be processed elsewhere). See note on write_sub_paths about global. | |
217 | fn write_sub_paths_truncated(&mut self, path: &ast::Path, global: bool) { | |
218 | let sub_paths = self.process_path_prefixes(path); | |
219 | let len = sub_paths.len(); | |
220 | if len <= 1 { | |
221 | return; | |
222 | } | |
223 | ||
224 | let sub_paths = &sub_paths[..len-1]; | |
225 | for (i, &(ref span, ref qualname)) in sub_paths.iter().enumerate() { | |
226 | let qualname = if i == 0 && global && !path.global { | |
227 | format!("::{}", qualname) | |
228 | } else { | |
229 | qualname.clone() | |
230 | }; | |
a7813a04 | 231 | self.dumper.mod_ref(ModRefData { |
54a0048b SL |
232 | span: *span, |
233 | qualname: qualname, | |
234 | scope: self.cur_scope, | |
235 | ref_id: None | |
a7813a04 | 236 | }.lower(self.tcx)); |
d9579d0f AL |
237 | } |
238 | } | |
239 | ||
240 | // As write_sub_paths, but expects a path of the form module_path::trait::method | |
241 | // Where trait could actually be a struct too. | |
242 | fn write_sub_path_trait_truncated(&mut self, path: &ast::Path) { | |
243 | let sub_paths = self.process_path_prefixes(path); | |
244 | let len = sub_paths.len(); | |
245 | if len <= 1 { | |
246 | return; | |
247 | } | |
248 | let sub_paths = &sub_paths[.. (len-1)]; | |
249 | ||
250 | // write the trait part of the sub-path | |
251 | let (ref span, ref qualname) = sub_paths[len-2]; | |
a7813a04 | 252 | self.dumper.type_ref(TypeRefData { |
54a0048b SL |
253 | ref_id: None, |
254 | span: *span, | |
255 | qualname: qualname.to_owned(), | |
9e0c209e | 256 | scope: CRATE_NODE_ID |
a7813a04 | 257 | }.lower(self.tcx)); |
d9579d0f AL |
258 | |
259 | // write the other sub-paths | |
260 | if len <= 2 { | |
261 | return; | |
262 | } | |
263 | let sub_paths = &sub_paths[..len-2]; | |
264 | for &(ref span, ref qualname) in sub_paths { | |
a7813a04 | 265 | self.dumper.mod_ref(ModRefData { |
54a0048b SL |
266 | span: *span, |
267 | qualname: qualname.to_owned(), | |
268 | scope: self.cur_scope, | |
269 | ref_id: None | |
a7813a04 | 270 | }.lower(self.tcx)); |
d9579d0f AL |
271 | } |
272 | } | |
273 | ||
274 | // looks up anything, not just a type | |
275 | fn lookup_type_ref(&self, ref_id: NodeId) -> Option<DefId> { | |
9e0c209e SL |
276 | self.tcx.expect_def_or_none(ref_id).and_then(|def| { |
277 | match def { | |
278 | Def::PrimTy(..) => None, | |
279 | Def::SelfTy(..) => None, | |
280 | def => Some(def.def_id()), | |
281 | } | |
282 | }) | |
d9579d0f AL |
283 | } |
284 | ||
54a0048b SL |
285 | fn process_def_kind(&mut self, |
286 | ref_id: NodeId, | |
287 | span: Span, | |
288 | sub_span: Option<Span>, | |
289 | def_id: DefId, | |
290 | scope: NodeId) { | |
291 | if self.span.filter_generated(sub_span, span) { | |
292 | return; | |
293 | } | |
294 | ||
3157f602 | 295 | let def = self.tcx.expect_def(ref_id); |
d9579d0f | 296 | match def { |
9e0c209e | 297 | Def::Mod(_) => { |
a7813a04 | 298 | self.dumper.mod_ref(ModRefData { |
54a0048b SL |
299 | span: sub_span.expect("No span found for mod ref"), |
300 | ref_id: Some(def_id), | |
301 | scope: scope, | |
302 | qualname: String::new() | |
a7813a04 | 303 | }.lower(self.tcx)); |
54a0048b SL |
304 | } |
305 | Def::Struct(..) | | |
9e0c209e | 306 | Def::Union(..) | |
7453a54e SL |
307 | Def::Enum(..) | |
308 | Def::TyAlias(..) | | |
309 | Def::AssociatedTy(..) | | |
54a0048b | 310 | Def::Trait(_) => { |
a7813a04 | 311 | self.dumper.type_ref(TypeRefData { |
54a0048b SL |
312 | span: sub_span.expect("No span found for type ref"), |
313 | ref_id: Some(def_id), | |
314 | scope: scope, | |
315 | qualname: String::new() | |
a7813a04 | 316 | }.lower(self.tcx)); |
54a0048b | 317 | } |
9e0c209e | 318 | Def::Static(..) | |
7453a54e SL |
319 | Def::Const(_) | |
320 | Def::AssociatedConst(..) | | |
321 | Def::Local(..) | | |
322 | Def::Variant(..) | | |
54a0048b | 323 | Def::Upvar(..) => { |
a7813a04 | 324 | self.dumper.variable_ref(VariableRefData { |
54a0048b SL |
325 | span: sub_span.expect("No span found for var ref"), |
326 | ref_id: def_id, | |
327 | scope: scope, | |
328 | name: String::new() | |
a7813a04 | 329 | }.lower(self.tcx)); |
54a0048b SL |
330 | } |
331 | Def::Fn(..) => { | |
a7813a04 | 332 | self.dumper.function_ref(FunctionRefData { |
54a0048b SL |
333 | span: sub_span.expect("No span found for fn ref"), |
334 | ref_id: def_id, | |
335 | scope: scope | |
a7813a04 | 336 | }.lower(self.tcx)); |
54a0048b | 337 | } |
7453a54e SL |
338 | Def::SelfTy(..) | |
339 | Def::Label(_) | | |
340 | Def::TyParam(..) | | |
341 | Def::Method(..) | | |
342 | Def::PrimTy(_) | | |
343 | Def::Err => { | |
54a0048b SL |
344 | span_bug!(span, |
345 | "process_def_kind for unexpected item: {:?}", | |
346 | def); | |
e9174d1e | 347 | } |
d9579d0f AL |
348 | } |
349 | } | |
350 | ||
351 | fn process_formals(&mut self, formals: &Vec<ast::Arg>, qualname: &str) { | |
352 | for arg in formals { | |
353 | self.visit_pat(&arg.pat); | |
354 | let mut collector = PathCollector::new(); | |
355 | collector.visit_pat(&arg.pat); | |
356 | let span_utils = self.span.clone(); | |
9e0c209e | 357 | for &(id, ref p, ..) in &collector.collected_paths { |
62682a34 | 358 | let typ = self.tcx.node_types().get(&id).unwrap().to_string(); |
d9579d0f AL |
359 | // get the span only for the name of the variable (I hope the path is only ever a |
360 | // variable name, but who knows?) | |
54a0048b SL |
361 | let sub_span = span_utils.span_for_last_ident(p.span); |
362 | if !self.span.filter_generated(sub_span, p.span) { | |
a7813a04 | 363 | self.dumper.variable(VariableData { |
54a0048b | 364 | id: id, |
3157f602 | 365 | kind: VariableKind::Local, |
54a0048b SL |
366 | span: sub_span.expect("No span found for variable"), |
367 | name: path_to_string(p), | |
368 | qualname: format!("{}::{}", qualname, path_to_string(p)), | |
369 | type_value: typ, | |
370 | value: String::new(), | |
9e0c209e SL |
371 | scope: CRATE_NODE_ID, |
372 | parent: None, | |
373 | visibility: Visibility::Inherited, | |
374 | docs: String::new(), | |
a7813a04 | 375 | }.lower(self.tcx)); |
54a0048b | 376 | } |
d9579d0f AL |
377 | } |
378 | } | |
379 | } | |
380 | ||
c1a9b12d SL |
381 | fn process_method(&mut self, |
382 | sig: &ast::MethodSig, | |
d9579d0f | 383 | body: Option<&ast::Block>, |
c1a9b12d SL |
384 | id: ast::NodeId, |
385 | name: ast::Name, | |
9e0c209e SL |
386 | vis: Visibility, |
387 | attrs: &[Attribute], | |
d9579d0f | 388 | span: Span) { |
c1a9b12d | 389 | debug!("process_method: {}:{}", id, name); |
d9579d0f | 390 | |
7453a54e | 391 | if let Some(method_data) = self.save_ctxt.get_method_data(id, name, span) { |
d9579d0f | 392 | |
a7813a04 | 393 | let sig_str = ::make_signature(&sig.decl, &sig.generics); |
7453a54e | 394 | if body.is_some() { |
7453a54e | 395 | self.process_formals(&sig.decl.inputs, &method_data.qualname); |
7453a54e | 396 | } |
3157f602 XL |
397 | |
398 | // If the method is defined in an impl, then try and find the corresponding | |
399 | // method decl in a trait, and if there is one, make a decl_id for it. This | |
400 | // requires looking up the impl, then the trait, then searching for a method | |
401 | // with the right name. | |
402 | if !self.span.filter_generated(Some(method_data.span), span) { | |
403 | let container = | |
404 | self.tcx.impl_or_trait_item(self.tcx.map.local_def_id(id)).container(); | |
9e0c209e SL |
405 | let mut trait_id; |
406 | let mut decl_id = None; | |
407 | match container { | |
408 | ImplOrTraitItemContainer::ImplContainer(id) => { | |
409 | trait_id = self.tcx.trait_id_of_impl(id); | |
410 | ||
411 | match trait_id { | |
412 | Some(id) => { | |
413 | for item in &**self.tcx.trait_items(id) { | |
414 | if let &ImplOrTraitItem::MethodTraitItem(ref m) = item { | |
415 | if m.name == name { | |
416 | decl_id = Some(m.def_id); | |
417 | break; | |
418 | } | |
419 | } | |
420 | } | |
421 | } | |
422 | None => { | |
423 | if let Some(NodeItem(item)) = self.tcx.map.get_if_local(id) { | |
424 | if let hir::ItemImpl(_, _, _, _, ref ty, _) = item.node { | |
425 | trait_id = self.lookup_type_ref(ty.id); | |
426 | } | |
3157f602 XL |
427 | } |
428 | } | |
429 | } | |
9e0c209e SL |
430 | } |
431 | ImplOrTraitItemContainer::TraitContainer(id) => { | |
432 | trait_id = Some(id); | |
433 | } | |
434 | } | |
3157f602 XL |
435 | |
436 | self.dumper.method(MethodData { | |
437 | id: method_data.id, | |
438 | name: method_data.name, | |
439 | span: method_data.span, | |
440 | scope: method_data.scope, | |
441 | qualname: method_data.qualname.clone(), | |
442 | value: sig_str, | |
443 | decl_id: decl_id, | |
9e0c209e SL |
444 | parent: trait_id, |
445 | visibility: vis, | |
446 | docs: docs_for_attrs(attrs), | |
3157f602 XL |
447 | }.lower(self.tcx)); |
448 | } | |
449 | ||
7453a54e | 450 | self.process_generic_params(&sig.generics, span, &method_data.qualname, id); |
d9579d0f AL |
451 | } |
452 | ||
453 | // walk arg and return types | |
454 | for arg in &sig.decl.inputs { | |
455 | self.visit_ty(&arg.ty); | |
456 | } | |
457 | ||
7453a54e | 458 | if let ast::FunctionRetTy::Ty(ref ret_ty) = sig.decl.output { |
d9579d0f AL |
459 | self.visit_ty(ret_ty); |
460 | } | |
461 | ||
462 | // walk the fn body | |
463 | if let Some(body) = body { | |
464 | self.nest(id, |v| v.visit_block(body)); | |
465 | } | |
d9579d0f AL |
466 | } |
467 | ||
62682a34 SL |
468 | fn process_trait_ref(&mut self, trait_ref: &ast::TraitRef) { |
469 | let trait_ref_data = self.save_ctxt.get_trait_ref_data(trait_ref, self.cur_scope); | |
470 | if let Some(trait_ref_data) = trait_ref_data { | |
54a0048b | 471 | if !self.span.filter_generated(Some(trait_ref_data.span), trait_ref.path.span) { |
a7813a04 | 472 | self.dumper.type_ref(trait_ref_data.lower(self.tcx)); |
54a0048b SL |
473 | } |
474 | ||
62682a34 | 475 | visit::walk_path(self, &trait_ref.path); |
d9579d0f AL |
476 | } |
477 | } | |
478 | ||
e9174d1e | 479 | fn process_struct_field_def(&mut self, field: &ast::StructField, parent_id: NodeId) { |
62682a34 | 480 | let field_data = self.save_ctxt.get_field_data(field, parent_id); |
54a0048b SL |
481 | if let Some(mut field_data) = field_data { |
482 | if !self.span.filter_generated(Some(field_data.span), field.span) { | |
54a0048b | 483 | field_data.value = String::new(); |
a7813a04 | 484 | self.dumper.variable(field_data.lower(self.tcx)); |
54a0048b | 485 | } |
d9579d0f AL |
486 | } |
487 | } | |
488 | ||
489 | // Dump generic params bindings, then visit_generics | |
490 | fn process_generic_params(&mut self, | |
e9174d1e | 491 | generics: &ast::Generics, |
d9579d0f AL |
492 | full_span: Span, |
493 | prefix: &str, | |
494 | id: NodeId) { | |
495 | // We can't only use visit_generics since we don't have spans for param | |
496 | // bindings, so we reparse the full_span to get those sub spans. | |
497 | // However full span is the entire enum/fn/struct block, so we only want | |
498 | // the first few to match the number of generics we're looking for. | |
499 | let param_sub_spans = self.span.spans_for_ty_params(full_span, | |
b039eaaf | 500 | (generics.ty_params.len() as isize)); |
62682a34 | 501 | for (param, param_ss) in generics.ty_params.iter().zip(param_sub_spans) { |
a7813a04 | 502 | let name = escape(self.span.snippet(param_ss)); |
d9579d0f | 503 | // Append $id to name to make sure each one is unique |
a7813a04 XL |
504 | let qualname = format!("{}::{}${}", |
505 | prefix, | |
506 | name, | |
507 | id); | |
54a0048b | 508 | if !self.span.filter_generated(Some(param_ss), full_span) { |
a7813a04 | 509 | self.dumper.typedef(TypeDefData { |
54a0048b | 510 | span: param_ss, |
a7813a04 | 511 | name: name, |
54a0048b | 512 | id: param.id, |
a7813a04 | 513 | qualname: qualname, |
9e0c209e SL |
514 | value: String::new(), |
515 | visibility: Visibility::Inherited, | |
516 | parent: None, | |
517 | docs: String::new(), | |
a7813a04 | 518 | }.lower(self.tcx)); |
54a0048b | 519 | } |
d9579d0f AL |
520 | } |
521 | self.visit_generics(generics); | |
522 | } | |
523 | ||
524 | fn process_fn(&mut self, | |
525 | item: &ast::Item, | |
526 | decl: &ast::FnDecl, | |
527 | ty_params: &ast::Generics, | |
528 | body: &ast::Block) { | |
7453a54e | 529 | if let Some(fn_data) = self.save_ctxt.get_item_data(item) { |
54a0048b SL |
530 | down_cast_data!(fn_data, FunctionData, item.span); |
531 | if !self.span.filter_generated(Some(fn_data.span), item.span) { | |
a7813a04 | 532 | self.dumper.function(fn_data.clone().lower(self.tcx)); |
54a0048b | 533 | } |
7453a54e SL |
534 | |
535 | self.process_formals(&decl.inputs, &fn_data.qualname); | |
536 | self.process_generic_params(ty_params, item.span, &fn_data.qualname, item.id); | |
537 | } | |
d9579d0f AL |
538 | |
539 | for arg in &decl.inputs { | |
540 | self.visit_ty(&arg.ty); | |
541 | } | |
542 | ||
7453a54e | 543 | if let ast::FunctionRetTy::Ty(ref ret_ty) = decl.output { |
d9579d0f AL |
544 | self.visit_ty(&ret_ty); |
545 | } | |
546 | ||
547 | self.nest(item.id, |v| v.visit_block(&body)); | |
548 | } | |
549 | ||
e9174d1e | 550 | fn process_static_or_const_item(&mut self, item: &ast::Item, typ: &ast::Ty, expr: &ast::Expr) { |
7453a54e | 551 | if let Some(var_data) = self.save_ctxt.get_item_data(item) { |
54a0048b SL |
552 | down_cast_data!(var_data, VariableData, item.span); |
553 | if !self.span.filter_generated(Some(var_data.span), item.span) { | |
a7813a04 | 554 | self.dumper.variable(var_data.lower(self.tcx)); |
54a0048b | 555 | } |
7453a54e | 556 | } |
d9579d0f AL |
557 | self.visit_ty(&typ); |
558 | self.visit_expr(expr); | |
559 | } | |
560 | ||
9e0c209e SL |
561 | fn process_assoc_const(&mut self, |
562 | id: ast::NodeId, | |
563 | name: ast::Name, | |
564 | span: Span, | |
565 | typ: &ast::Ty, | |
566 | expr: &ast::Expr, | |
567 | parent_id: DefId, | |
568 | vis: Visibility, | |
569 | attrs: &[Attribute]) { | |
54a0048b | 570 | let qualname = format!("::{}", self.tcx.node_path_str(id)); |
d9579d0f | 571 | |
b039eaaf | 572 | let sub_span = self.span.sub_span_after_keyword(span, keywords::Const); |
d9579d0f | 573 | |
54a0048b | 574 | if !self.span.filter_generated(sub_span, span) { |
a7813a04 | 575 | self.dumper.variable(VariableData { |
54a0048b | 576 | span: sub_span.expect("No span found for variable"), |
3157f602 | 577 | kind: VariableKind::Const, |
54a0048b SL |
578 | id: id, |
579 | name: name.to_string(), | |
580 | qualname: qualname, | |
581 | value: self.span.snippet(expr.span), | |
582 | type_value: ty_to_string(&typ), | |
9e0c209e SL |
583 | scope: self.cur_scope, |
584 | parent: Some(parent_id), | |
585 | visibility: vis, | |
586 | docs: docs_for_attrs(attrs), | |
a7813a04 | 587 | }.lower(self.tcx)); |
54a0048b | 588 | } |
d9579d0f AL |
589 | |
590 | // walk type and init value | |
591 | self.visit_ty(typ); | |
592 | self.visit_expr(expr); | |
593 | } | |
594 | ||
a7813a04 | 595 | // FIXME tuple structs should generate tuple-specific data. |
d9579d0f AL |
596 | fn process_struct(&mut self, |
597 | item: &ast::Item, | |
b039eaaf | 598 | def: &ast::VariantData, |
d9579d0f | 599 | ty_params: &ast::Generics) { |
a7813a04 | 600 | let name = item.ident.to_string(); |
54a0048b | 601 | let qualname = format!("::{}", self.tcx.node_path_str(item.id)); |
d9579d0f | 602 | |
d9579d0f | 603 | let sub_span = self.span.sub_span_after_keyword(item.span, keywords::Struct); |
3157f602 XL |
604 | let (val, fields) = |
605 | if let ast::ItemKind::Struct(ast::VariantData::Struct(ref fields, _), _) = item.node | |
606 | { | |
a7813a04 XL |
607 | let fields_str = fields.iter() |
608 | .enumerate() | |
609 | .map(|(i, f)| f.ident.map(|i| i.to_string()) | |
610 | .unwrap_or(i.to_string())) | |
611 | .collect::<Vec<_>>() | |
612 | .join(", "); | |
3157f602 | 613 | (format!("{} {{ {} }}", name, fields_str), fields.iter().map(|f| f.id).collect()) |
a7813a04 | 614 | } else { |
3157f602 | 615 | (String::new(), vec![]) |
a7813a04 XL |
616 | }; |
617 | ||
54a0048b | 618 | if !self.span.filter_generated(sub_span, item.span) { |
a7813a04 | 619 | self.dumper.struct_data(StructData { |
54a0048b SL |
620 | span: sub_span.expect("No span found for struct"), |
621 | id: item.id, | |
a7813a04 | 622 | name: name, |
54a0048b SL |
623 | ctor_id: def.id(), |
624 | qualname: qualname.clone(), | |
625 | scope: self.cur_scope, | |
3157f602 XL |
626 | value: val, |
627 | fields: fields, | |
9e0c209e SL |
628 | visibility: From::from(&item.vis), |
629 | docs: docs_for_attrs(&item.attrs), | |
a7813a04 | 630 | }.lower(self.tcx)); |
54a0048b SL |
631 | } |
632 | ||
d9579d0f AL |
633 | |
634 | // fields | |
b039eaaf | 635 | for field in def.fields() { |
62682a34 | 636 | self.process_struct_field_def(field, item.id); |
54a0048b | 637 | self.visit_ty(&field.ty); |
d9579d0f AL |
638 | } |
639 | ||
62682a34 | 640 | self.process_generic_params(ty_params, item.span, &qualname, item.id); |
d9579d0f AL |
641 | } |
642 | ||
643 | fn process_enum(&mut self, | |
644 | item: &ast::Item, | |
645 | enum_definition: &ast::EnumDef, | |
646 | ty_params: &ast::Generics) { | |
62682a34 | 647 | let enum_data = self.save_ctxt.get_item_data(item); |
7453a54e SL |
648 | let enum_data = match enum_data { |
649 | None => return, | |
650 | Some(data) => data, | |
651 | }; | |
54a0048b | 652 | down_cast_data!(enum_data, EnumData, item.span); |
a7813a04 XL |
653 | if !self.span.filter_generated(Some(enum_data.span), item.span) { |
654 | self.dumper.enum_data(enum_data.clone().lower(self.tcx)); | |
54a0048b | 655 | } |
62682a34 | 656 | |
d9579d0f | 657 | for variant in &enum_definition.variants { |
a7813a04 | 658 | let name = variant.node.name.name.to_string(); |
62682a34 | 659 | let mut qualname = enum_data.qualname.clone(); |
d9579d0f | 660 | qualname.push_str("::"); |
a7813a04 | 661 | qualname.push_str(&name); |
b039eaaf | 662 | |
7453a54e | 663 | match variant.node.data { |
a7813a04 | 664 | ast::VariantData::Struct(ref fields, _) => { |
54a0048b | 665 | let sub_span = self.span.span_for_first_ident(variant.span); |
a7813a04 XL |
666 | let fields_str = fields.iter() |
667 | .enumerate() | |
668 | .map(|(i, f)| f.ident.map(|i| i.to_string()) | |
669 | .unwrap_or(i.to_string())) | |
670 | .collect::<Vec<_>>() | |
671 | .join(", "); | |
672 | let val = format!("{}::{} {{ {} }}", enum_data.name, name, fields_str); | |
54a0048b | 673 | if !self.span.filter_generated(sub_span, variant.span) { |
a7813a04 | 674 | self.dumper.struct_variant(StructVariantData { |
54a0048b SL |
675 | span: sub_span.expect("No span found for struct variant"), |
676 | id: variant.node.data.id(), | |
a7813a04 | 677 | name: name, |
54a0048b SL |
678 | qualname: qualname, |
679 | type_value: enum_data.qualname.clone(), | |
680 | value: val, | |
9e0c209e SL |
681 | scope: enum_data.scope, |
682 | parent: Some(make_def_id(item.id, &self.tcx.map)), | |
683 | docs: docs_for_attrs(&variant.node.attrs), | |
a7813a04 | 684 | }.lower(self.tcx)); |
54a0048b | 685 | } |
7453a54e | 686 | } |
a7813a04 | 687 | ref v => { |
54a0048b | 688 | let sub_span = self.span.span_for_first_ident(variant.span); |
a7813a04 XL |
689 | let mut val = format!("{}::{}", enum_data.name, name); |
690 | if let &ast::VariantData::Tuple(ref fields, _) = v { | |
691 | val.push('('); | |
692 | val.push_str(&fields.iter() | |
693 | .map(|f| ty_to_string(&f.ty)) | |
694 | .collect::<Vec<_>>() | |
695 | .join(", ")); | |
696 | val.push(')'); | |
697 | } | |
54a0048b | 698 | if !self.span.filter_generated(sub_span, variant.span) { |
a7813a04 | 699 | self.dumper.tuple_variant(TupleVariantData { |
54a0048b SL |
700 | span: sub_span.expect("No span found for tuple variant"), |
701 | id: variant.node.data.id(), | |
a7813a04 | 702 | name: name, |
54a0048b SL |
703 | qualname: qualname, |
704 | type_value: enum_data.qualname.clone(), | |
705 | value: val, | |
9e0c209e SL |
706 | scope: enum_data.scope, |
707 | parent: Some(make_def_id(item.id, &self.tcx.map)), | |
708 | docs: docs_for_attrs(&variant.node.attrs), | |
a7813a04 | 709 | }.lower(self.tcx)); |
54a0048b | 710 | } |
7453a54e SL |
711 | } |
712 | } | |
713 | ||
b039eaaf SL |
714 | |
715 | for field in variant.node.data.fields() { | |
716 | self.process_struct_field_def(field, variant.node.data.id()); | |
54a0048b | 717 | self.visit_ty(&field.ty); |
d9579d0f AL |
718 | } |
719 | } | |
62682a34 | 720 | self.process_generic_params(ty_params, item.span, &enum_data.qualname, enum_data.id); |
d9579d0f AL |
721 | } |
722 | ||
723 | fn process_impl(&mut self, | |
724 | item: &ast::Item, | |
725 | type_parameters: &ast::Generics, | |
726 | trait_ref: &Option<ast::TraitRef>, | |
727 | typ: &ast::Ty, | |
7453a54e SL |
728 | impl_items: &[ast::ImplItem]) { |
729 | let mut has_self_ref = false; | |
730 | if let Some(impl_data) = self.save_ctxt.get_item_data(item) { | |
54a0048b | 731 | down_cast_data!(impl_data, ImplData, item.span); |
7453a54e SL |
732 | if let Some(ref self_ref) = impl_data.self_ref { |
733 | has_self_ref = true; | |
54a0048b | 734 | if !self.span.filter_generated(Some(self_ref.span), item.span) { |
a7813a04 | 735 | self.dumper.type_ref(self_ref.clone().lower(self.tcx)); |
54a0048b | 736 | } |
62682a34 | 737 | } |
7453a54e | 738 | if let Some(ref trait_ref_data) = impl_data.trait_ref { |
54a0048b | 739 | if !self.span.filter_generated(Some(trait_ref_data.span), item.span) { |
a7813a04 | 740 | self.dumper.type_ref(trait_ref_data.clone().lower(self.tcx)); |
54a0048b SL |
741 | } |
742 | ||
7453a54e | 743 | visit::walk_path(self, &trait_ref.as_ref().unwrap().path); |
d9579d0f | 744 | } |
7453a54e | 745 | |
54a0048b | 746 | if !self.span.filter_generated(Some(impl_data.span), item.span) { |
a7813a04 | 747 | self.dumper.impl_data(ImplData { |
54a0048b SL |
748 | id: impl_data.id, |
749 | span: impl_data.span, | |
750 | scope: impl_data.scope, | |
751 | trait_ref: impl_data.trait_ref.map(|d| d.ref_id.unwrap()), | |
752 | self_ref: impl_data.self_ref.map(|d| d.ref_id.unwrap()) | |
a7813a04 | 753 | }.lower(self.tcx)); |
54a0048b | 754 | } |
d9579d0f | 755 | } |
7453a54e SL |
756 | if !has_self_ref { |
757 | self.visit_ty(&typ); | |
d9579d0f | 758 | } |
d9579d0f AL |
759 | self.process_generic_params(type_parameters, item.span, "", item.id); |
760 | for impl_item in impl_items { | |
9e0c209e SL |
761 | let map = &self.tcx.map; |
762 | self.process_impl_item(impl_item, make_def_id(item.id, map)); | |
d9579d0f AL |
763 | } |
764 | } | |
765 | ||
766 | fn process_trait(&mut self, | |
767 | item: &ast::Item, | |
768 | generics: &ast::Generics, | |
9cc50fc6 | 769 | trait_refs: &ast::TyParamBounds, |
7453a54e | 770 | methods: &[ast::TraitItem]) { |
a7813a04 | 771 | let name = item.ident.to_string(); |
54a0048b | 772 | let qualname = format!("::{}", self.tcx.node_path_str(item.id)); |
a7813a04 XL |
773 | let mut val = name.clone(); |
774 | if !generics.lifetimes.is_empty() || !generics.ty_params.is_empty() { | |
775 | val.push_str(&generics_to_string(generics)); | |
776 | } | |
777 | if !trait_refs.is_empty() { | |
778 | val.push_str(": "); | |
779 | val.push_str(&bounds_to_string(trait_refs)); | |
780 | } | |
d9579d0f | 781 | let sub_span = self.span.sub_span_after_keyword(item.span, keywords::Trait); |
54a0048b | 782 | if !self.span.filter_generated(sub_span, item.span) { |
a7813a04 | 783 | self.dumper.trait_data(TraitData { |
54a0048b SL |
784 | span: sub_span.expect("No span found for trait"), |
785 | id: item.id, | |
a7813a04 | 786 | name: name, |
54a0048b SL |
787 | qualname: qualname.clone(), |
788 | scope: self.cur_scope, | |
3157f602 XL |
789 | value: val, |
790 | items: methods.iter().map(|i| i.id).collect(), | |
9e0c209e SL |
791 | visibility: From::from(&item.vis), |
792 | docs: docs_for_attrs(&item.attrs), | |
a7813a04 | 793 | }.lower(self.tcx)); |
54a0048b | 794 | } |
d9579d0f AL |
795 | |
796 | // super-traits | |
62682a34 | 797 | for super_bound in trait_refs.iter() { |
d9579d0f AL |
798 | let trait_ref = match *super_bound { |
799 | ast::TraitTyParamBound(ref trait_ref, _) => { | |
800 | trait_ref | |
801 | } | |
802 | ast::RegionTyParamBound(..) => { | |
803 | continue; | |
804 | } | |
805 | }; | |
806 | ||
807 | let trait_ref = &trait_ref.trait_ref; | |
54a0048b SL |
808 | if let Some(id) = self.lookup_type_ref(trait_ref.ref_id) { |
809 | let sub_span = self.span.sub_span_for_type_name(trait_ref.path.span); | |
810 | if !self.span.filter_generated(sub_span, trait_ref.path.span) { | |
a7813a04 | 811 | self.dumper.type_ref(TypeRefData { |
54a0048b SL |
812 | span: sub_span.expect("No span found for trait ref"), |
813 | ref_id: Some(id), | |
814 | scope: self.cur_scope, | |
815 | qualname: String::new() | |
a7813a04 | 816 | }.lower(self.tcx)); |
54a0048b SL |
817 | } |
818 | ||
819 | if !self.span.filter_generated(sub_span, trait_ref.path.span) { | |
820 | let sub_span = sub_span.expect("No span for inheritance"); | |
821 | self.dumper.inheritance(InheritanceData { | |
822 | span: sub_span, | |
823 | base_id: id, | |
824 | deriv_id: item.id | |
a7813a04 | 825 | }.lower(self.tcx)); |
e9174d1e | 826 | } |
d9579d0f AL |
827 | } |
828 | } | |
829 | ||
830 | // walk generics and methods | |
62682a34 | 831 | self.process_generic_params(generics, item.span, &qualname, item.id); |
d9579d0f | 832 | for method in methods { |
9e0c209e SL |
833 | let map = &self.tcx.map; |
834 | self.process_trait_item(method, make_def_id(item.id, map)) | |
d9579d0f AL |
835 | } |
836 | } | |
837 | ||
e9174d1e SL |
838 | // `item` is the module in question, represented as an item. |
839 | fn process_mod(&mut self, item: &ast::Item) { | |
7453a54e | 840 | if let Some(mod_data) = self.save_ctxt.get_item_data(item) { |
54a0048b SL |
841 | down_cast_data!(mod_data, ModData, item.span); |
842 | if !self.span.filter_generated(Some(mod_data.span), item.span) { | |
a7813a04 | 843 | self.dumper.mod_data(mod_data.lower(self.tcx)); |
54a0048b | 844 | } |
7453a54e | 845 | } |
d9579d0f AL |
846 | } |
847 | ||
e9174d1e | 848 | fn process_path(&mut self, id: NodeId, path: &ast::Path, ref_kind: Option<recorder::Row>) { |
7453a54e SL |
849 | let path_data = self.save_ctxt.get_path_data(id, path); |
850 | if generated_code(path.span) && path_data.is_none() { | |
c1a9b12d | 851 | return; |
d9579d0f AL |
852 | } |
853 | ||
c1a9b12d SL |
854 | let path_data = match path_data { |
855 | Some(pd) => pd, | |
856 | None => { | |
54a0048b SL |
857 | span_bug!(path.span, |
858 | "Unexpected def kind while looking up path in `{}`", | |
859 | self.span.snippet(path.span)) | |
c1a9b12d SL |
860 | } |
861 | }; | |
54a0048b | 862 | |
c1a9b12d | 863 | match path_data { |
54a0048b SL |
864 | Data::VariableRefData(vrd) => { |
865 | // FIXME: this whole block duplicates the code in process_def_kind | |
866 | if !self.span.filter_generated(Some(vrd.span), path.span) { | |
867 | match ref_kind { | |
868 | Some(recorder::TypeRef) => { | |
a7813a04 | 869 | self.dumper.type_ref(TypeRefData { |
54a0048b SL |
870 | span: vrd.span, |
871 | ref_id: Some(vrd.ref_id), | |
872 | scope: vrd.scope, | |
873 | qualname: String::new() | |
a7813a04 | 874 | }.lower(self.tcx)); |
54a0048b SL |
875 | } |
876 | Some(recorder::FnRef) => { | |
a7813a04 | 877 | self.dumper.function_ref(FunctionRefData { |
54a0048b SL |
878 | span: vrd.span, |
879 | ref_id: vrd.ref_id, | |
880 | scope: vrd.scope | |
a7813a04 | 881 | }.lower(self.tcx)); |
54a0048b SL |
882 | } |
883 | Some(recorder::ModRef) => { | |
a7813a04 | 884 | self.dumper.mod_ref( ModRefData { |
54a0048b SL |
885 | span: vrd.span, |
886 | ref_id: Some(vrd.ref_id), | |
887 | scope: vrd.scope, | |
888 | qualname: String::new() | |
a7813a04 | 889 | }.lower(self.tcx)); |
54a0048b SL |
890 | } |
891 | Some(recorder::VarRef) | None | |
a7813a04 | 892 | => self.dumper.variable_ref(vrd.lower(self.tcx)) |
54a0048b SL |
893 | } |
894 | } | |
c1a9b12d SL |
895 | |
896 | } | |
54a0048b SL |
897 | Data::TypeRefData(trd) => { |
898 | if !self.span.filter_generated(Some(trd.span), path.span) { | |
a7813a04 | 899 | self.dumper.type_ref(trd.lower(self.tcx)); |
54a0048b | 900 | } |
c1a9b12d | 901 | } |
54a0048b SL |
902 | Data::MethodCallData(mcd) => { |
903 | if !self.span.filter_generated(Some(mcd.span), path.span) { | |
a7813a04 | 904 | self.dumper.method_call(mcd.lower(self.tcx)); |
54a0048b | 905 | } |
c1a9b12d SL |
906 | } |
907 | Data::FunctionCallData(fcd) => { | |
54a0048b | 908 | if !self.span.filter_generated(Some(fcd.span), path.span) { |
a7813a04 | 909 | self.dumper.function_call(fcd.lower(self.tcx)); |
54a0048b | 910 | } |
c1a9b12d SL |
911 | } |
912 | _ => { | |
54a0048b | 913 | span_bug!(path.span, "Unexpected data: {:?}", path_data); |
d9579d0f | 914 | } |
d9579d0f | 915 | } |
c1a9b12d SL |
916 | |
917 | // Modules or types in the path prefix. | |
3157f602 | 918 | match self.tcx.expect_def(id) { |
7453a54e | 919 | Def::Method(did) => { |
c1a9b12d | 920 | let ti = self.tcx.impl_or_trait_item(did); |
d9579d0f | 921 | if let ty::MethodTraitItem(m) = ti { |
9cc50fc6 | 922 | if m.explicit_self == ty::ExplicitSelfCategory::Static { |
d9579d0f AL |
923 | self.write_sub_path_trait_truncated(path); |
924 | } | |
925 | } | |
926 | } | |
7453a54e | 927 | Def::Local(..) | |
9e0c209e | 928 | Def::Static(..) | |
7453a54e SL |
929 | Def::Const(..) | |
930 | Def::AssociatedConst(..) | | |
931 | Def::Struct(..) | | |
932 | Def::Variant(..) | | |
933 | Def::Fn(..) => self.write_sub_paths_truncated(path, false), | |
e9174d1e | 934 | _ => {} |
d9579d0f AL |
935 | } |
936 | } | |
937 | ||
938 | fn process_struct_lit(&mut self, | |
939 | ex: &ast::Expr, | |
940 | path: &ast::Path, | |
941 | fields: &Vec<ast::Field>, | |
e9174d1e | 942 | variant: ty::VariantDef, |
d9579d0f | 943 | base: &Option<P<ast::Expr>>) { |
d9579d0f AL |
944 | self.write_sub_paths_truncated(path, false); |
945 | ||
62682a34 | 946 | if let Some(struct_lit_data) = self.save_ctxt.get_expr_data(ex) { |
54a0048b SL |
947 | down_cast_data!(struct_lit_data, TypeRefData, ex.span); |
948 | if !self.span.filter_generated(Some(struct_lit_data.span), ex.span) { | |
a7813a04 | 949 | self.dumper.type_ref(struct_lit_data.lower(self.tcx)); |
54a0048b SL |
950 | } |
951 | ||
c1a9b12d | 952 | let scope = self.save_ctxt.enclosing_scope(ex.id); |
62682a34 SL |
953 | |
954 | for field in fields { | |
7453a54e SL |
955 | if let Some(field_data) = self.save_ctxt |
956 | .get_field_ref_data(field, variant, scope) { | |
d9579d0f | 957 | |
54a0048b | 958 | if !self.span.filter_generated(Some(field_data.span), field.ident.span) { |
a7813a04 | 959 | self.dumper.variable_ref(field_data.lower(self.tcx)); |
54a0048b | 960 | } |
7453a54e | 961 | } |
62682a34 SL |
962 | |
963 | self.visit_expr(&field.expr) | |
964 | } | |
d9579d0f | 965 | } |
62682a34 | 966 | |
b039eaaf | 967 | walk_list!(self, visit_expr, base); |
d9579d0f AL |
968 | } |
969 | ||
e9174d1e | 970 | fn process_method_call(&mut self, ex: &ast::Expr, args: &Vec<P<ast::Expr>>) { |
54a0048b SL |
971 | if let Some(mcd) = self.save_ctxt.get_expr_data(ex) { |
972 | down_cast_data!(mcd, MethodCallData, ex.span); | |
973 | if !self.span.filter_generated(Some(mcd.span), ex.span) { | |
a7813a04 | 974 | self.dumper.method_call(mcd.lower(self.tcx)); |
54a0048b | 975 | } |
c1a9b12d | 976 | } |
d9579d0f AL |
977 | |
978 | // walk receiver and args | |
b039eaaf | 979 | walk_list!(self, visit_expr, args); |
d9579d0f AL |
980 | } |
981 | ||
e9174d1e | 982 | fn process_pat(&mut self, p: &ast::Pat) { |
d9579d0f | 983 | match p.node { |
7453a54e | 984 | PatKind::Struct(ref path, ref fields, _) => { |
d9579d0f | 985 | visit::walk_path(self, path); |
e9174d1e | 986 | let adt = self.tcx.node_id_to_type(p.id).ty_adt_def().unwrap(); |
3157f602 | 987 | let variant = adt.variant_of_def(self.tcx.expect_def(p.id)); |
d9579d0f | 988 | |
e9174d1e | 989 | for &Spanned { node: ref field, span } in fields { |
e9174d1e SL |
990 | let sub_span = self.span.span_for_first_ident(span); |
991 | if let Some(f) = variant.find_field_named(field.ident.name) { | |
54a0048b | 992 | if !self.span.filter_generated(sub_span, span) { |
a7813a04 | 993 | self.dumper.variable_ref(VariableRefData { |
54a0048b SL |
994 | span: sub_span.expect("No span fund for var ref"), |
995 | ref_id: f.did, | |
996 | scope: self.cur_scope, | |
997 | name: String::new() | |
a7813a04 | 998 | }.lower(self.tcx)); |
54a0048b | 999 | } |
d9579d0f | 1000 | } |
e9174d1e | 1001 | self.visit_pat(&field.pat); |
d9579d0f AL |
1002 | } |
1003 | } | |
e9174d1e | 1004 | _ => visit::walk_pat(self, p), |
d9579d0f AL |
1005 | } |
1006 | } | |
b039eaaf SL |
1007 | |
1008 | ||
1009 | fn process_var_decl(&mut self, p: &ast::Pat, value: String) { | |
1010 | // The local could declare multiple new vars, we must walk the | |
1011 | // pattern and collect them all. | |
1012 | let mut collector = PathCollector::new(); | |
1013 | collector.visit_pat(&p); | |
1014 | self.visit_pat(&p); | |
1015 | ||
1016 | for &(id, ref p, immut, _) in &collector.collected_paths { | |
9e0c209e SL |
1017 | let mut value = match immut { |
1018 | ast::Mutability::Immutable => value.to_string(), | |
1019 | _ => String::new(), | |
b039eaaf SL |
1020 | }; |
1021 | let types = self.tcx.node_types(); | |
9e0c209e SL |
1022 | let typ = match types.get(&id) { |
1023 | Some(typ) => { | |
1024 | let typ = typ.to_string(); | |
1025 | if !value.is_empty() { | |
1026 | value.push_str(": "); | |
1027 | } | |
1028 | value.push_str(&typ); | |
1029 | typ | |
1030 | } | |
1031 | None => String::new(), | |
1032 | }; | |
1033 | ||
b039eaaf SL |
1034 | // Get the span only for the name of the variable (I hope the path |
1035 | // is only ever a variable name, but who knows?). | |
1036 | let sub_span = self.span.span_for_last_ident(p.span); | |
1037 | // Rust uses the id of the pattern for var lookups, so we'll use it too. | |
54a0048b | 1038 | if !self.span.filter_generated(sub_span, p.span) { |
a7813a04 | 1039 | self.dumper.variable(VariableData { |
54a0048b | 1040 | span: sub_span.expect("No span found for variable"), |
3157f602 | 1041 | kind: VariableKind::Local, |
54a0048b SL |
1042 | id: id, |
1043 | name: path_to_string(p), | |
1044 | qualname: format!("{}${}", path_to_string(p), id), | |
1045 | value: value, | |
1046 | type_value: typ, | |
9e0c209e SL |
1047 | scope: CRATE_NODE_ID, |
1048 | parent: None, | |
1049 | visibility: Visibility::Inherited, | |
1050 | docs: String::new(), | |
a7813a04 | 1051 | }.lower(self.tcx)); |
54a0048b | 1052 | } |
b039eaaf SL |
1053 | } |
1054 | } | |
7453a54e SL |
1055 | |
1056 | /// Extract macro use and definition information from the AST node defined | |
1057 | /// by the given NodeId, using the expansion information from the node's | |
1058 | /// span. | |
1059 | /// | |
1060 | /// If the span is not macro-generated, do nothing, else use callee and | |
1061 | /// callsite spans to record macro definition and use data, using the | |
1062 | /// mac_uses and mac_defs sets to prevent multiples. | |
1063 | fn process_macro_use(&mut self, span: Span, id: NodeId) { | |
1064 | let data = match self.save_ctxt.get_macro_use_data(span, id) { | |
1065 | None => return, | |
1066 | Some(data) => data, | |
1067 | }; | |
9e0c209e | 1068 | let mut hasher = DefaultHasher::new(); |
7453a54e SL |
1069 | data.callee_span.hash(&mut hasher); |
1070 | let hash = hasher.finish(); | |
1071 | let qualname = format!("{}::{}", data.name, hash); | |
1072 | // Don't write macro definition for imported macros | |
1073 | if !self.mac_defs.contains(&data.callee_span) | |
1074 | && !data.imported { | |
1075 | self.mac_defs.insert(data.callee_span); | |
1076 | if let Some(sub_span) = self.span.span_for_macro_def_name(data.callee_span) { | |
a7813a04 | 1077 | self.dumper.macro_data(MacroData { |
54a0048b SL |
1078 | span: sub_span, |
1079 | name: data.name.clone(), | |
9e0c209e SL |
1080 | qualname: qualname.clone(), |
1081 | // FIXME where do macro docs come from? | |
1082 | docs: String::new(), | |
a7813a04 | 1083 | }.lower(self.tcx)); |
7453a54e SL |
1084 | } |
1085 | } | |
1086 | if !self.mac_uses.contains(&data.span) { | |
1087 | self.mac_uses.insert(data.span); | |
1088 | if let Some(sub_span) = self.span.span_for_macro_use_name(data.span) { | |
a7813a04 | 1089 | self.dumper.macro_use(MacroUseData { |
54a0048b SL |
1090 | span: sub_span, |
1091 | name: data.name, | |
1092 | qualname: qualname, | |
1093 | scope: data.scope, | |
1094 | callee_span: data.callee_span, | |
9e0c209e | 1095 | imported: data.imported, |
a7813a04 | 1096 | }.lower(self.tcx)); |
7453a54e SL |
1097 | } |
1098 | } | |
1099 | } | |
9e0c209e SL |
1100 | |
1101 | fn process_trait_item(&mut self, trait_item: &ast::TraitItem, trait_id: DefId) { | |
1102 | self.process_macro_use(trait_item.span, trait_item.id); | |
1103 | match trait_item.node { | |
1104 | ast::TraitItemKind::Const(ref ty, Some(ref expr)) => { | |
1105 | self.process_assoc_const(trait_item.id, | |
1106 | trait_item.ident.name, | |
1107 | trait_item.span, | |
1108 | &ty, | |
1109 | &expr, | |
1110 | trait_id, | |
1111 | Visibility::Public, | |
1112 | &trait_item.attrs); | |
1113 | } | |
1114 | ast::TraitItemKind::Method(ref sig, ref body) => { | |
1115 | self.process_method(sig, | |
1116 | body.as_ref().map(|x| &**x), | |
1117 | trait_item.id, | |
1118 | trait_item.ident.name, | |
1119 | Visibility::Public, | |
1120 | &trait_item.attrs, | |
1121 | trait_item.span); | |
1122 | } | |
1123 | ast::TraitItemKind::Const(_, None) | | |
1124 | ast::TraitItemKind::Type(..) | | |
1125 | ast::TraitItemKind::Macro(_) => {} | |
1126 | } | |
1127 | } | |
1128 | ||
1129 | fn process_impl_item(&mut self, impl_item: &ast::ImplItem, impl_id: DefId) { | |
1130 | self.process_macro_use(impl_item.span, impl_item.id); | |
1131 | match impl_item.node { | |
1132 | ast::ImplItemKind::Const(ref ty, ref expr) => { | |
1133 | self.process_assoc_const(impl_item.id, | |
1134 | impl_item.ident.name, | |
1135 | impl_item.span, | |
1136 | &ty, | |
1137 | &expr, | |
1138 | impl_id, | |
1139 | From::from(&impl_item.vis), | |
1140 | &impl_item.attrs); | |
1141 | } | |
1142 | ast::ImplItemKind::Method(ref sig, ref body) => { | |
1143 | self.process_method(sig, | |
1144 | Some(body), | |
1145 | impl_item.id, | |
1146 | impl_item.ident.name, | |
1147 | From::from(&impl_item.vis), | |
1148 | &impl_item.attrs, | |
1149 | impl_item.span); | |
1150 | } | |
1151 | ast::ImplItemKind::Type(_) | | |
1152 | ast::ImplItemKind::Macro(_) => {} | |
1153 | } | |
1154 | } | |
d9579d0f AL |
1155 | } |
1156 | ||
3157f602 | 1157 | impl<'l, 'tcx: 'l, 'll, D: Dump +'ll> Visitor for DumpVisitor<'l, 'tcx, 'll, D> { |
d9579d0f | 1158 | fn visit_item(&mut self, item: &ast::Item) { |
7453a54e SL |
1159 | use syntax::ast::ItemKind::*; |
1160 | self.process_macro_use(item.span, item.id); | |
d9579d0f | 1161 | match item.node { |
7453a54e | 1162 | Use(ref use_item) => { |
d9579d0f AL |
1163 | match use_item.node { |
1164 | ast::ViewPathSimple(ident, ref path) => { | |
1165 | let sub_span = self.span.span_for_last_ident(path.span); | |
1166 | let mod_id = match self.lookup_type_ref(item.id) { | |
1167 | Some(def_id) => { | |
54a0048b SL |
1168 | let scope = self.cur_scope; |
1169 | self.process_def_kind(item.id, path.span, sub_span, def_id, scope); | |
1170 | ||
d9579d0f | 1171 | Some(def_id) |
e9174d1e | 1172 | } |
d9579d0f AL |
1173 | None => None, |
1174 | }; | |
1175 | ||
1176 | // 'use' always introduces an alias, if there is not an explicit | |
1177 | // one, there is an implicit one. | |
b039eaaf SL |
1178 | let sub_span = match self.span.sub_span_after_keyword(use_item.span, |
1179 | keywords::As) { | |
1180 | Some(sub_span) => Some(sub_span), | |
1181 | None => sub_span, | |
1182 | }; | |
d9579d0f | 1183 | |
54a0048b | 1184 | if !self.span.filter_generated(sub_span, path.span) { |
a7813a04 | 1185 | self.dumper.use_data(UseData { |
54a0048b SL |
1186 | span: sub_span.expect("No span found for use"), |
1187 | id: item.id, | |
1188 | mod_id: mod_id, | |
a7813a04 | 1189 | name: ident.to_string(), |
9e0c209e SL |
1190 | scope: self.cur_scope, |
1191 | visibility: From::from(&item.vis), | |
a7813a04 | 1192 | }.lower(self.tcx)); |
54a0048b | 1193 | } |
d9579d0f AL |
1194 | self.write_sub_paths_truncated(path, true); |
1195 | } | |
1196 | ast::ViewPathGlob(ref path) => { | |
1197 | // Make a comma-separated list of names of imported modules. | |
54a0048b | 1198 | let mut names = vec![]; |
d9579d0f AL |
1199 | let glob_map = &self.analysis.glob_map; |
1200 | let glob_map = glob_map.as_ref().unwrap(); | |
1201 | if glob_map.contains_key(&item.id) { | |
1202 | for n in glob_map.get(&item.id).unwrap() { | |
54a0048b | 1203 | names.push(n.to_string()); |
d9579d0f AL |
1204 | } |
1205 | } | |
1206 | ||
b039eaaf | 1207 | let sub_span = self.span |
a7813a04 XL |
1208 | .sub_span_of_token(item.span, token::BinOp(token::Star)); |
1209 | if !self.span.filter_generated(sub_span, item.span) { | |
1210 | self.dumper.use_glob(UseGlobData { | |
54a0048b SL |
1211 | span: sub_span.expect("No span found for use glob"), |
1212 | id: item.id, | |
1213 | names: names, | |
9e0c209e SL |
1214 | scope: self.cur_scope, |
1215 | visibility: From::from(&item.vis), | |
a7813a04 | 1216 | }.lower(self.tcx)); |
54a0048b | 1217 | } |
d9579d0f AL |
1218 | self.write_sub_paths(path, true); |
1219 | } | |
1220 | ast::ViewPathList(ref path, ref list) => { | |
1221 | for plid in list { | |
9e0c209e SL |
1222 | let scope = self.cur_scope; |
1223 | let id = plid.node.id; | |
1224 | if let Some(def_id) = self.lookup_type_ref(id) { | |
1225 | let span = plid.span; | |
1226 | self.process_def_kind(id, span, Some(span), def_id, scope); | |
d9579d0f AL |
1227 | } |
1228 | } | |
1229 | ||
1230 | self.write_sub_paths(path, true); | |
1231 | } | |
1232 | } | |
1233 | } | |
7453a54e | 1234 | ExternCrate(ref s) => { |
d9579d0f AL |
1235 | let location = match *s { |
1236 | Some(s) => s.to_string(), | |
c1a9b12d | 1237 | None => item.ident.to_string(), |
d9579d0f AL |
1238 | }; |
1239 | let alias_span = self.span.span_for_last_ident(item.span); | |
92a42be0 | 1240 | let cnum = match self.sess.cstore.extern_mod_stmt_cnum(item.id) { |
d9579d0f | 1241 | Some(cnum) => cnum, |
9e0c209e | 1242 | None => LOCAL_CRATE, |
d9579d0f | 1243 | }; |
54a0048b SL |
1244 | |
1245 | if !self.span.filter_generated(alias_span, item.span) { | |
a7813a04 | 1246 | self.dumper.extern_crate(ExternCrateData { |
54a0048b | 1247 | id: item.id, |
a7813a04 | 1248 | name: item.ident.to_string(), |
54a0048b SL |
1249 | crate_num: cnum, |
1250 | location: location, | |
1251 | span: alias_span.expect("No span found for extern crate"), | |
1252 | scope: self.cur_scope, | |
a7813a04 | 1253 | }.lower(self.tcx)); |
54a0048b | 1254 | } |
d9579d0f | 1255 | } |
9e0c209e | 1256 | Fn(ref decl, .., ref ty_params, ref body) => |
7453a54e SL |
1257 | self.process_fn(item, &decl, ty_params, &body), |
1258 | Static(ref typ, _, ref expr) => | |
d9579d0f | 1259 | self.process_static_or_const_item(item, typ, expr), |
7453a54e | 1260 | Const(ref typ, ref expr) => |
d9579d0f | 1261 | self.process_static_or_const_item(item, &typ, &expr), |
7453a54e SL |
1262 | Struct(ref def, ref ty_params) => self.process_struct(item, def, ty_params), |
1263 | Enum(ref def, ref ty_params) => self.process_enum(item, def, ty_params), | |
9e0c209e | 1264 | Impl(.., |
d9579d0f AL |
1265 | ref ty_params, |
1266 | ref trait_ref, | |
1267 | ref typ, | |
1268 | ref impl_items) => { | |
b039eaaf | 1269 | self.process_impl(item, ty_params, trait_ref, &typ, impl_items) |
d9579d0f | 1270 | } |
7453a54e | 1271 | Trait(_, ref generics, ref trait_refs, ref methods) => |
d9579d0f | 1272 | self.process_trait(item, generics, trait_refs, methods), |
7453a54e | 1273 | Mod(ref m) => { |
62682a34 SL |
1274 | self.process_mod(item); |
1275 | self.nest(item.id, |v| visit::walk_mod(v, m)); | |
1276 | } | |
7453a54e | 1277 | Ty(ref ty, ref ty_params) => { |
54a0048b | 1278 | let qualname = format!("::{}", self.tcx.node_path_str(item.id)); |
7453a54e | 1279 | let value = ty_to_string(&ty); |
d9579d0f | 1280 | let sub_span = self.span.sub_span_after_keyword(item.span, keywords::Type); |
54a0048b | 1281 | if !self.span.filter_generated(sub_span, item.span) { |
a7813a04 | 1282 | self.dumper.typedef(TypeDefData { |
54a0048b | 1283 | span: sub_span.expect("No span found for typedef"), |
a7813a04 | 1284 | name: item.ident.to_string(), |
54a0048b SL |
1285 | id: item.id, |
1286 | qualname: qualname.clone(), | |
9e0c209e SL |
1287 | value: value, |
1288 | visibility: From::from(&item.vis), | |
1289 | parent: None, | |
1290 | docs: docs_for_attrs(&item.attrs), | |
a7813a04 | 1291 | }.lower(self.tcx)); |
54a0048b | 1292 | } |
d9579d0f | 1293 | |
7453a54e | 1294 | self.visit_ty(&ty); |
d9579d0f | 1295 | self.process_generic_params(ty_params, item.span, &qualname, item.id); |
e9174d1e | 1296 | } |
7453a54e | 1297 | Mac(_) => (), |
d9579d0f AL |
1298 | _ => visit::walk_item(self, item), |
1299 | } | |
1300 | } | |
1301 | ||
1302 | fn visit_generics(&mut self, generics: &ast::Generics) { | |
62682a34 SL |
1303 | for param in generics.ty_params.iter() { |
1304 | for bound in param.bounds.iter() { | |
d9579d0f AL |
1305 | if let ast::TraitTyParamBound(ref trait_ref, _) = *bound { |
1306 | self.process_trait_ref(&trait_ref.trait_ref); | |
1307 | } | |
1308 | } | |
1309 | if let Some(ref ty) = param.default { | |
7453a54e | 1310 | self.visit_ty(&ty); |
d9579d0f AL |
1311 | } |
1312 | } | |
1313 | } | |
1314 | ||
d9579d0f | 1315 | fn visit_ty(&mut self, t: &ast::Ty) { |
7453a54e | 1316 | self.process_macro_use(t.span, t.id); |
d9579d0f | 1317 | match t.node { |
7453a54e | 1318 | ast::TyKind::Path(_, ref path) => { |
54a0048b SL |
1319 | if let Some(id) = self.lookup_type_ref(t.id) { |
1320 | let sub_span = self.span.sub_span_for_type_name(t.span); | |
1321 | if !self.span.filter_generated(sub_span, t.span) { | |
a7813a04 | 1322 | self.dumper.type_ref(TypeRefData { |
54a0048b SL |
1323 | span: sub_span.expect("No span found for type ref"), |
1324 | ref_id: Some(id), | |
1325 | scope: self.cur_scope, | |
1326 | qualname: String::new() | |
a7813a04 | 1327 | }.lower(self.tcx)); |
e9174d1e | 1328 | } |
d9579d0f AL |
1329 | } |
1330 | ||
1331 | self.write_sub_paths_truncated(path, false); | |
1332 | ||
1333 | visit::walk_path(self, path); | |
e9174d1e | 1334 | } |
d9579d0f AL |
1335 | _ => visit::walk_ty(self, t), |
1336 | } | |
1337 | } | |
1338 | ||
1339 | fn visit_expr(&mut self, ex: &ast::Expr) { | |
7453a54e | 1340 | self.process_macro_use(ex.span, ex.id); |
d9579d0f | 1341 | match ex.node { |
7453a54e | 1342 | ast::ExprKind::Call(ref _f, ref _args) => { |
d9579d0f AL |
1343 | // Don't need to do anything for function calls, |
1344 | // because just walking the callee path does what we want. | |
1345 | visit::walk_expr(self, ex); | |
1346 | } | |
7453a54e | 1347 | ast::ExprKind::Path(_, ref path) => { |
c1a9b12d | 1348 | self.process_path(ex.id, path, None); |
d9579d0f AL |
1349 | visit::walk_expr(self, ex); |
1350 | } | |
7453a54e | 1351 | ast::ExprKind::Struct(ref path, ref fields, ref base) => { |
a7813a04 | 1352 | let hir_expr = self.save_ctxt.tcx.map.expect_expr(ex.id); |
e9174d1e | 1353 | let adt = self.tcx.expr_ty(&hir_expr).ty_adt_def().unwrap(); |
3157f602 | 1354 | let def = self.tcx.expect_def(hir_expr.id); |
b039eaaf | 1355 | self.process_struct_lit(ex, path, fields, adt.variant_of_def(def), base) |
e9174d1e | 1356 | } |
9e0c209e | 1357 | ast::ExprKind::MethodCall(.., ref args) => self.process_method_call(ex, args), |
7453a54e | 1358 | ast::ExprKind::Field(ref sub_ex, _) => { |
62682a34 SL |
1359 | self.visit_expr(&sub_ex); |
1360 | ||
1361 | if let Some(field_data) = self.save_ctxt.get_expr_data(ex) { | |
54a0048b SL |
1362 | down_cast_data!(field_data, VariableRefData, ex.span); |
1363 | if !self.span.filter_generated(Some(field_data.span), ex.span) { | |
a7813a04 | 1364 | self.dumper.variable_ref(field_data.lower(self.tcx)); |
54a0048b | 1365 | } |
d9579d0f | 1366 | } |
e9174d1e | 1367 | } |
7453a54e SL |
1368 | ast::ExprKind::TupField(ref sub_ex, idx) => { |
1369 | self.visit_expr(&sub_ex); | |
d9579d0f | 1370 | |
5bcae85e SL |
1371 | let hir_node = match self.save_ctxt.tcx.map.find(sub_ex.id) { |
1372 | Some(Node::NodeExpr(expr)) => expr, | |
1373 | _ => { | |
1374 | debug!("Missing or weird node for sub-expression {} in {:?}", | |
1375 | sub_ex.id, ex); | |
1376 | return; | |
1377 | } | |
1378 | }; | |
e9174d1e | 1379 | let ty = &self.tcx.expr_ty_adjusted(&hir_node).sty; |
d9579d0f | 1380 | match *ty { |
9e0c209e | 1381 | ty::TyAdt(def, _) => { |
e9174d1e | 1382 | let sub_span = self.span.sub_span_after_token(ex.span, token::Dot); |
54a0048b | 1383 | if !self.span.filter_generated(sub_span, ex.span) { |
a7813a04 | 1384 | self.dumper.variable_ref(VariableRefData { |
54a0048b SL |
1385 | span: sub_span.expect("No span found for var ref"), |
1386 | ref_id: def.struct_variant().fields[idx.node].did, | |
1387 | scope: self.cur_scope, | |
1388 | name: String::new() | |
a7813a04 | 1389 | }.lower(self.tcx)); |
54a0048b | 1390 | } |
d9579d0f | 1391 | } |
62682a34 | 1392 | ty::TyTuple(_) => {} |
54a0048b SL |
1393 | _ => span_bug!(ex.span, |
1394 | "Expected struct or tuple type, found {:?}", | |
1395 | ty), | |
d9579d0f | 1396 | } |
e9174d1e | 1397 | } |
a7813a04 | 1398 | ast::ExprKind::Closure(_, ref decl, ref body, _fn_decl_span) => { |
62682a34 | 1399 | let mut id = String::from("$"); |
d9579d0f | 1400 | id.push_str(&ex.id.to_string()); |
62682a34 | 1401 | self.process_formals(&decl.inputs, &id); |
d9579d0f AL |
1402 | |
1403 | // walk arg and return types | |
1404 | for arg in &decl.inputs { | |
7453a54e | 1405 | self.visit_ty(&arg.ty); |
d9579d0f AL |
1406 | } |
1407 | ||
7453a54e SL |
1408 | if let ast::FunctionRetTy::Ty(ref ret_ty) = decl.output { |
1409 | self.visit_ty(&ret_ty); | |
d9579d0f AL |
1410 | } |
1411 | ||
1412 | // walk the body | |
7453a54e | 1413 | self.nest(ex.id, |v| v.visit_block(&body)); |
e9174d1e | 1414 | } |
7453a54e SL |
1415 | ast::ExprKind::ForLoop(ref pattern, ref subexpression, ref block, _) | |
1416 | ast::ExprKind::WhileLet(ref pattern, ref subexpression, ref block, _) => { | |
a7813a04 | 1417 | let value = self.span.snippet(subexpression.span); |
b039eaaf SL |
1418 | self.process_var_decl(pattern, value); |
1419 | visit::walk_expr(self, subexpression); | |
1420 | visit::walk_block(self, block); | |
1421 | } | |
7453a54e | 1422 | ast::ExprKind::IfLet(ref pattern, ref subexpression, ref block, ref opt_else) => { |
a7813a04 | 1423 | let value = self.span.snippet(subexpression.span); |
b039eaaf SL |
1424 | self.process_var_decl(pattern, value); |
1425 | visit::walk_expr(self, subexpression); | |
1426 | visit::walk_block(self, block); | |
1427 | opt_else.as_ref().map(|el| visit::walk_expr(self, el)); | |
1428 | } | |
d9579d0f AL |
1429 | _ => { |
1430 | visit::walk_expr(self, ex) | |
1431 | } | |
1432 | } | |
1433 | } | |
1434 | ||
7453a54e SL |
1435 | fn visit_mac(&mut self, mac: &ast::Mac) { |
1436 | // These shouldn't exist in the AST at this point, log a span bug. | |
54a0048b | 1437 | span_bug!(mac.span, "macro invocation should have been expanded out of AST"); |
d9579d0f AL |
1438 | } |
1439 | ||
1440 | fn visit_pat(&mut self, p: &ast::Pat) { | |
7453a54e | 1441 | self.process_macro_use(p.span, p.id); |
d9579d0f AL |
1442 | self.process_pat(p); |
1443 | } | |
1444 | ||
1445 | fn visit_arm(&mut self, arm: &ast::Arm) { | |
1446 | let mut collector = PathCollector::new(); | |
1447 | for pattern in &arm.pats { | |
1448 | // collect paths from the arm's patterns | |
1449 | collector.visit_pat(&pattern); | |
1450 | self.visit_pat(&pattern); | |
1451 | } | |
1452 | ||
1453 | // This is to get around borrow checking, because we need mut self to call process_path. | |
1454 | let mut paths_to_process = vec![]; | |
c1a9b12d | 1455 | |
d9579d0f AL |
1456 | // process collected paths |
1457 | for &(id, ref p, immut, ref_kind) in &collector.collected_paths { | |
3157f602 | 1458 | match self.tcx.expect_def(id) { |
9e0c209e SL |
1459 | Def::Local(def_id) => { |
1460 | let id = self.tcx.map.as_local_node_id(def_id).unwrap(); | |
1461 | let mut value = if immut == ast::Mutability::Immutable { | |
d9579d0f AL |
1462 | self.span.snippet(p.span).to_string() |
1463 | } else { | |
1464 | "<mutable>".to_string() | |
1465 | }; | |
9e0c209e SL |
1466 | let typ = self.tcx.node_types() |
1467 | .get(&id).map(|t| t.to_string()).unwrap_or(String::new()); | |
1468 | value.push_str(": "); | |
1469 | value.push_str(&typ); | |
d9579d0f | 1470 | |
b039eaaf SL |
1471 | assert!(p.segments.len() == 1, |
1472 | "qualified path for local variable def in arm"); | |
54a0048b | 1473 | if !self.span.filter_generated(Some(p.span), p.span) { |
a7813a04 | 1474 | self.dumper.variable(VariableData { |
54a0048b | 1475 | span: p.span, |
3157f602 | 1476 | kind: VariableKind::Local, |
54a0048b SL |
1477 | id: id, |
1478 | name: path_to_string(p), | |
1479 | qualname: format!("{}${}", path_to_string(p), id), | |
1480 | value: value, | |
9e0c209e SL |
1481 | type_value: typ, |
1482 | scope: CRATE_NODE_ID, | |
1483 | parent: None, | |
1484 | visibility: Visibility::Inherited, | |
1485 | docs: String::new(), | |
a7813a04 | 1486 | }.lower(self.tcx)); |
54a0048b | 1487 | } |
d9579d0f | 1488 | } |
7453a54e SL |
1489 | Def::Variant(..) | Def::Enum(..) | |
1490 | Def::TyAlias(..) | Def::Struct(..) => { | |
d9579d0f AL |
1491 | paths_to_process.push((id, p.clone(), Some(ref_kind))) |
1492 | } | |
1493 | // FIXME(nrc) what are these doing here? | |
9e0c209e | 1494 | Def::Static(..) | |
7453a54e SL |
1495 | Def::Const(..) | |
1496 | Def::AssociatedConst(..) => {} | |
3157f602 XL |
1497 | def => error!("unexpected definition kind when processing collected paths: {:?}", |
1498 | def), | |
d9579d0f AL |
1499 | } |
1500 | } | |
c1a9b12d | 1501 | |
d9579d0f | 1502 | for &(id, ref path, ref_kind) in &paths_to_process { |
c1a9b12d | 1503 | self.process_path(id, path, ref_kind); |
d9579d0f | 1504 | } |
b039eaaf | 1505 | walk_list!(self, visit_expr, &arm.guard); |
c1a9b12d | 1506 | self.visit_expr(&arm.body); |
d9579d0f AL |
1507 | } |
1508 | ||
1509 | fn visit_stmt(&mut self, s: &ast::Stmt) { | |
3157f602 | 1510 | self.process_macro_use(s.span, s.id); |
d9579d0f AL |
1511 | visit::walk_stmt(self, s) |
1512 | } | |
1513 | ||
1514 | fn visit_local(&mut self, l: &ast::Local) { | |
7453a54e | 1515 | self.process_macro_use(l.span, l.id); |
a7813a04 | 1516 | let value = l.init.as_ref().map(|i| self.span.snippet(i.span)).unwrap_or(String::new()); |
b039eaaf | 1517 | self.process_var_decl(&l.pat, value); |
d9579d0f AL |
1518 | |
1519 | // Just walk the initialiser and type (don't want to walk the pattern again). | |
b039eaaf SL |
1520 | walk_list!(self, visit_ty, &l.ty); |
1521 | walk_list!(self, visit_expr, &l.init); | |
d9579d0f AL |
1522 | } |
1523 | } |