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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 | 155 | if generated_code(path.span) { |
c30ab7b3 | 156 | return vec![]; |
7453a54e | 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 | 168 | } |
c30ab7b3 SL |
169 | error!(" master span: {:?}: `{}`", path.span, self.span.snippet(path.span)); |
170 | return vec![]; | |
d9579d0f AL |
171 | } |
172 | ||
c30ab7b3 | 173 | let mut result: Vec<(Span, String)> = vec![]; |
d9579d0f | 174 | |
c30ab7b3 | 175 | let mut segs = vec![]; |
62682a34 | 176 | for (i, (seg, span)) in path.segments.iter().zip(&spans).enumerate() { |
d9579d0f | 177 | segs.push(seg.clone()); |
e9174d1e SL |
178 | let sub_path = ast::Path { |
179 | span: *span, // span for the last segment | |
180 | global: path.global, | |
181 | segments: segs, | |
182 | }; | |
d9579d0f AL |
183 | let qualname = if i == 0 && path.global { |
184 | format!("::{}", path_to_string(&sub_path)) | |
185 | } else { | |
186 | path_to_string(&sub_path) | |
187 | }; | |
188 | result.push((*span, qualname)); | |
189 | segs = sub_path.segments; | |
190 | } | |
191 | ||
192 | result | |
193 | } | |
194 | ||
195 | // The global arg allows us to override the global-ness of the path (which | |
196 | // actually means 'does the path start with `::`', rather than 'is the path | |
197 | // semantically global). We use the override for `use` imports (etc.) where | |
198 | // the syntax is non-global, but the semantics are global. | |
199 | fn write_sub_paths(&mut self, path: &ast::Path, global: bool) { | |
200 | let sub_paths = self.process_path_prefixes(path); | |
201 | for (i, &(ref span, ref qualname)) in sub_paths.iter().enumerate() { | |
202 | let qualname = if i == 0 && global && !path.global { | |
203 | format!("::{}", qualname) | |
204 | } else { | |
205 | qualname.clone() | |
206 | }; | |
a7813a04 | 207 | self.dumper.mod_ref(ModRefData { |
54a0048b SL |
208 | span: *span, |
209 | qualname: qualname, | |
210 | scope: self.cur_scope, | |
211 | ref_id: None | |
a7813a04 | 212 | }.lower(self.tcx)); |
d9579d0f AL |
213 | } |
214 | } | |
215 | ||
216 | // As write_sub_paths, but does not process the last ident in the path (assuming it | |
217 | // will be processed elsewhere). See note on write_sub_paths about global. | |
218 | fn write_sub_paths_truncated(&mut self, path: &ast::Path, global: bool) { | |
219 | let sub_paths = self.process_path_prefixes(path); | |
220 | let len = sub_paths.len(); | |
221 | if len <= 1 { | |
222 | return; | |
223 | } | |
224 | ||
225 | let sub_paths = &sub_paths[..len-1]; | |
226 | for (i, &(ref span, ref qualname)) in sub_paths.iter().enumerate() { | |
227 | let qualname = if i == 0 && global && !path.global { | |
228 | format!("::{}", qualname) | |
229 | } else { | |
230 | qualname.clone() | |
231 | }; | |
a7813a04 | 232 | self.dumper.mod_ref(ModRefData { |
54a0048b SL |
233 | span: *span, |
234 | qualname: qualname, | |
235 | scope: self.cur_scope, | |
236 | ref_id: None | |
a7813a04 | 237 | }.lower(self.tcx)); |
d9579d0f AL |
238 | } |
239 | } | |
240 | ||
241 | // As write_sub_paths, but expects a path of the form module_path::trait::method | |
242 | // Where trait could actually be a struct too. | |
243 | fn write_sub_path_trait_truncated(&mut self, path: &ast::Path) { | |
244 | let sub_paths = self.process_path_prefixes(path); | |
245 | let len = sub_paths.len(); | |
246 | if len <= 1 { | |
247 | return; | |
248 | } | |
249 | let sub_paths = &sub_paths[.. (len-1)]; | |
250 | ||
251 | // write the trait part of the sub-path | |
252 | let (ref span, ref qualname) = sub_paths[len-2]; | |
a7813a04 | 253 | self.dumper.type_ref(TypeRefData { |
54a0048b SL |
254 | ref_id: None, |
255 | span: *span, | |
256 | qualname: qualname.to_owned(), | |
9e0c209e | 257 | scope: CRATE_NODE_ID |
a7813a04 | 258 | }.lower(self.tcx)); |
d9579d0f AL |
259 | |
260 | // write the other sub-paths | |
261 | if len <= 2 { | |
262 | return; | |
263 | } | |
264 | let sub_paths = &sub_paths[..len-2]; | |
265 | for &(ref span, ref qualname) in sub_paths { | |
a7813a04 | 266 | self.dumper.mod_ref(ModRefData { |
54a0048b SL |
267 | span: *span, |
268 | qualname: qualname.to_owned(), | |
269 | scope: self.cur_scope, | |
270 | ref_id: None | |
a7813a04 | 271 | }.lower(self.tcx)); |
d9579d0f AL |
272 | } |
273 | } | |
274 | ||
c30ab7b3 | 275 | fn lookup_def_id(&self, ref_id: NodeId) -> Option<DefId> { |
9e0c209e SL |
276 | self.tcx.expect_def_or_none(ref_id).and_then(|def| { |
277 | match def { | |
c30ab7b3 | 278 | Def::PrimTy(..) | Def::SelfTy(..) => None, |
9e0c209e SL |
279 | def => Some(def.def_id()), |
280 | } | |
281 | }) | |
d9579d0f AL |
282 | } |
283 | ||
54a0048b SL |
284 | fn process_def_kind(&mut self, |
285 | ref_id: NodeId, | |
286 | span: Span, | |
287 | sub_span: Option<Span>, | |
288 | def_id: DefId, | |
289 | scope: NodeId) { | |
290 | if self.span.filter_generated(sub_span, span) { | |
291 | return; | |
292 | } | |
293 | ||
3157f602 | 294 | let def = self.tcx.expect_def(ref_id); |
d9579d0f | 295 | match def { |
9e0c209e | 296 | Def::Mod(_) => { |
a7813a04 | 297 | self.dumper.mod_ref(ModRefData { |
54a0048b SL |
298 | span: sub_span.expect("No span found for mod ref"), |
299 | ref_id: Some(def_id), | |
300 | scope: scope, | |
301 | qualname: String::new() | |
a7813a04 | 302 | }.lower(self.tcx)); |
54a0048b SL |
303 | } |
304 | Def::Struct(..) | | |
c30ab7b3 | 305 | Def::Variant(..) | |
9e0c209e | 306 | Def::Union(..) | |
7453a54e SL |
307 | Def::Enum(..) | |
308 | Def::TyAlias(..) | | |
54a0048b | 309 | Def::Trait(_) => { |
a7813a04 | 310 | self.dumper.type_ref(TypeRefData { |
54a0048b SL |
311 | span: sub_span.expect("No span found for type ref"), |
312 | ref_id: Some(def_id), | |
313 | scope: scope, | |
314 | qualname: String::new() | |
a7813a04 | 315 | }.lower(self.tcx)); |
54a0048b | 316 | } |
9e0c209e | 317 | Def::Static(..) | |
c30ab7b3 SL |
318 | Def::Const(..) | |
319 | Def::StructCtor(..) | | |
320 | Def::VariantCtor(..) => { | |
a7813a04 | 321 | self.dumper.variable_ref(VariableRefData { |
54a0048b SL |
322 | span: sub_span.expect("No span found for var ref"), |
323 | ref_id: def_id, | |
324 | scope: scope, | |
325 | name: String::new() | |
a7813a04 | 326 | }.lower(self.tcx)); |
54a0048b SL |
327 | } |
328 | Def::Fn(..) => { | |
a7813a04 | 329 | self.dumper.function_ref(FunctionRefData { |
54a0048b SL |
330 | span: sub_span.expect("No span found for fn ref"), |
331 | ref_id: def_id, | |
332 | scope: scope | |
a7813a04 | 333 | }.lower(self.tcx)); |
54a0048b | 334 | } |
c30ab7b3 SL |
335 | Def::Local(..) | |
336 | Def::Upvar(..) | | |
7453a54e SL |
337 | Def::SelfTy(..) | |
338 | Def::Label(_) | | |
339 | Def::TyParam(..) | | |
340 | Def::Method(..) | | |
c30ab7b3 SL |
341 | Def::AssociatedTy(..) | |
342 | Def::AssociatedConst(..) | | |
7453a54e SL |
343 | Def::PrimTy(_) | |
344 | Def::Err => { | |
54a0048b SL |
345 | span_bug!(span, |
346 | "process_def_kind for unexpected item: {:?}", | |
347 | def); | |
e9174d1e | 348 | } |
d9579d0f AL |
349 | } |
350 | } | |
351 | ||
352 | fn process_formals(&mut self, formals: &Vec<ast::Arg>, qualname: &str) { | |
353 | for arg in formals { | |
354 | self.visit_pat(&arg.pat); | |
355 | let mut collector = PathCollector::new(); | |
356 | collector.visit_pat(&arg.pat); | |
357 | let span_utils = self.span.clone(); | |
9e0c209e | 358 | for &(id, ref p, ..) in &collector.collected_paths { |
c30ab7b3 | 359 | let typ = self.tcx.tables().node_types.get(&id).unwrap().to_string(); |
d9579d0f AL |
360 | // get the span only for the name of the variable (I hope the path is only ever a |
361 | // variable name, but who knows?) | |
54a0048b SL |
362 | let sub_span = span_utils.span_for_last_ident(p.span); |
363 | if !self.span.filter_generated(sub_span, p.span) { | |
a7813a04 | 364 | self.dumper.variable(VariableData { |
54a0048b | 365 | id: id, |
3157f602 | 366 | kind: VariableKind::Local, |
54a0048b SL |
367 | span: sub_span.expect("No span found for variable"), |
368 | name: path_to_string(p), | |
369 | qualname: format!("{}::{}", qualname, path_to_string(p)), | |
370 | type_value: typ, | |
371 | value: String::new(), | |
9e0c209e SL |
372 | scope: CRATE_NODE_ID, |
373 | parent: None, | |
374 | visibility: Visibility::Inherited, | |
375 | docs: String::new(), | |
a7813a04 | 376 | }.lower(self.tcx)); |
54a0048b | 377 | } |
d9579d0f AL |
378 | } |
379 | } | |
380 | } | |
381 | ||
c1a9b12d SL |
382 | fn process_method(&mut self, |
383 | sig: &ast::MethodSig, | |
d9579d0f | 384 | body: Option<&ast::Block>, |
c1a9b12d SL |
385 | id: ast::NodeId, |
386 | name: ast::Name, | |
9e0c209e SL |
387 | vis: Visibility, |
388 | attrs: &[Attribute], | |
d9579d0f | 389 | span: Span) { |
c1a9b12d | 390 | debug!("process_method: {}:{}", id, name); |
d9579d0f | 391 | |
7453a54e | 392 | if let Some(method_data) = self.save_ctxt.get_method_data(id, name, span) { |
d9579d0f | 393 | |
a7813a04 | 394 | let sig_str = ::make_signature(&sig.decl, &sig.generics); |
7453a54e | 395 | if body.is_some() { |
7453a54e | 396 | self.process_formals(&sig.decl.inputs, &method_data.qualname); |
7453a54e | 397 | } |
3157f602 XL |
398 | |
399 | // If the method is defined in an impl, then try and find the corresponding | |
400 | // method decl in a trait, and if there is one, make a decl_id for it. This | |
401 | // requires looking up the impl, then the trait, then searching for a method | |
402 | // with the right name. | |
403 | if !self.span.filter_generated(Some(method_data.span), span) { | |
404 | let container = | |
405 | self.tcx.impl_or_trait_item(self.tcx.map.local_def_id(id)).container(); | |
9e0c209e SL |
406 | let mut trait_id; |
407 | let mut decl_id = None; | |
408 | match container { | |
409 | ImplOrTraitItemContainer::ImplContainer(id) => { | |
410 | trait_id = self.tcx.trait_id_of_impl(id); | |
411 | ||
412 | match trait_id { | |
413 | Some(id) => { | |
414 | for item in &**self.tcx.trait_items(id) { | |
415 | if let &ImplOrTraitItem::MethodTraitItem(ref m) = item { | |
416 | if m.name == name { | |
417 | decl_id = Some(m.def_id); | |
418 | break; | |
419 | } | |
420 | } | |
421 | } | |
422 | } | |
423 | None => { | |
424 | if let Some(NodeItem(item)) = self.tcx.map.get_if_local(id) { | |
425 | if let hir::ItemImpl(_, _, _, _, ref ty, _) = item.node { | |
c30ab7b3 | 426 | trait_id = self.lookup_def_id(ty.id); |
9e0c209e | 427 | } |
3157f602 XL |
428 | } |
429 | } | |
430 | } | |
9e0c209e SL |
431 | } |
432 | ImplOrTraitItemContainer::TraitContainer(id) => { | |
433 | trait_id = Some(id); | |
434 | } | |
435 | } | |
3157f602 XL |
436 | |
437 | self.dumper.method(MethodData { | |
438 | id: method_data.id, | |
439 | name: method_data.name, | |
440 | span: method_data.span, | |
441 | scope: method_data.scope, | |
442 | qualname: method_data.qualname.clone(), | |
443 | value: sig_str, | |
444 | decl_id: decl_id, | |
9e0c209e SL |
445 | parent: trait_id, |
446 | visibility: vis, | |
447 | docs: docs_for_attrs(attrs), | |
3157f602 XL |
448 | }.lower(self.tcx)); |
449 | } | |
450 | ||
7453a54e | 451 | self.process_generic_params(&sig.generics, span, &method_data.qualname, id); |
d9579d0f AL |
452 | } |
453 | ||
454 | // walk arg and return types | |
455 | for arg in &sig.decl.inputs { | |
456 | self.visit_ty(&arg.ty); | |
457 | } | |
458 | ||
7453a54e | 459 | if let ast::FunctionRetTy::Ty(ref ret_ty) = sig.decl.output { |
d9579d0f AL |
460 | self.visit_ty(ret_ty); |
461 | } | |
462 | ||
463 | // walk the fn body | |
464 | if let Some(body) = body { | |
465 | self.nest(id, |v| v.visit_block(body)); | |
466 | } | |
d9579d0f AL |
467 | } |
468 | ||
62682a34 SL |
469 | fn process_trait_ref(&mut self, trait_ref: &ast::TraitRef) { |
470 | let trait_ref_data = self.save_ctxt.get_trait_ref_data(trait_ref, self.cur_scope); | |
471 | if let Some(trait_ref_data) = trait_ref_data { | |
54a0048b | 472 | if !self.span.filter_generated(Some(trait_ref_data.span), trait_ref.path.span) { |
a7813a04 | 473 | self.dumper.type_ref(trait_ref_data.lower(self.tcx)); |
54a0048b SL |
474 | } |
475 | ||
62682a34 | 476 | visit::walk_path(self, &trait_ref.path); |
d9579d0f AL |
477 | } |
478 | } | |
479 | ||
e9174d1e | 480 | fn process_struct_field_def(&mut self, field: &ast::StructField, parent_id: NodeId) { |
62682a34 | 481 | let field_data = self.save_ctxt.get_field_data(field, parent_id); |
54a0048b SL |
482 | if let Some(mut field_data) = field_data { |
483 | if !self.span.filter_generated(Some(field_data.span), field.span) { | |
54a0048b | 484 | field_data.value = String::new(); |
a7813a04 | 485 | self.dumper.variable(field_data.lower(self.tcx)); |
54a0048b | 486 | } |
d9579d0f AL |
487 | } |
488 | } | |
489 | ||
490 | // Dump generic params bindings, then visit_generics | |
491 | fn process_generic_params(&mut self, | |
e9174d1e | 492 | generics: &ast::Generics, |
d9579d0f AL |
493 | full_span: Span, |
494 | prefix: &str, | |
495 | id: NodeId) { | |
496 | // We can't only use visit_generics since we don't have spans for param | |
497 | // bindings, so we reparse the full_span to get those sub spans. | |
498 | // However full span is the entire enum/fn/struct block, so we only want | |
499 | // the first few to match the number of generics we're looking for. | |
500 | let param_sub_spans = self.span.spans_for_ty_params(full_span, | |
b039eaaf | 501 | (generics.ty_params.len() as isize)); |
62682a34 | 502 | for (param, param_ss) in generics.ty_params.iter().zip(param_sub_spans) { |
a7813a04 | 503 | let name = escape(self.span.snippet(param_ss)); |
d9579d0f | 504 | // Append $id to name to make sure each one is unique |
a7813a04 XL |
505 | let qualname = format!("{}::{}${}", |
506 | prefix, | |
507 | name, | |
508 | id); | |
54a0048b | 509 | if !self.span.filter_generated(Some(param_ss), full_span) { |
a7813a04 | 510 | self.dumper.typedef(TypeDefData { |
54a0048b | 511 | span: param_ss, |
a7813a04 | 512 | name: name, |
54a0048b | 513 | id: param.id, |
a7813a04 | 514 | qualname: qualname, |
9e0c209e SL |
515 | value: String::new(), |
516 | visibility: Visibility::Inherited, | |
517 | parent: None, | |
518 | docs: String::new(), | |
a7813a04 | 519 | }.lower(self.tcx)); |
54a0048b | 520 | } |
d9579d0f AL |
521 | } |
522 | self.visit_generics(generics); | |
523 | } | |
524 | ||
525 | fn process_fn(&mut self, | |
526 | item: &ast::Item, | |
527 | decl: &ast::FnDecl, | |
528 | ty_params: &ast::Generics, | |
529 | body: &ast::Block) { | |
7453a54e | 530 | if let Some(fn_data) = self.save_ctxt.get_item_data(item) { |
54a0048b SL |
531 | down_cast_data!(fn_data, FunctionData, item.span); |
532 | if !self.span.filter_generated(Some(fn_data.span), item.span) { | |
a7813a04 | 533 | self.dumper.function(fn_data.clone().lower(self.tcx)); |
54a0048b | 534 | } |
7453a54e SL |
535 | |
536 | self.process_formals(&decl.inputs, &fn_data.qualname); | |
537 | self.process_generic_params(ty_params, item.span, &fn_data.qualname, item.id); | |
538 | } | |
d9579d0f AL |
539 | |
540 | for arg in &decl.inputs { | |
541 | self.visit_ty(&arg.ty); | |
542 | } | |
543 | ||
7453a54e | 544 | if let ast::FunctionRetTy::Ty(ref ret_ty) = decl.output { |
d9579d0f AL |
545 | self.visit_ty(&ret_ty); |
546 | } | |
547 | ||
548 | self.nest(item.id, |v| v.visit_block(&body)); | |
549 | } | |
550 | ||
e9174d1e | 551 | fn process_static_or_const_item(&mut self, item: &ast::Item, typ: &ast::Ty, expr: &ast::Expr) { |
7453a54e | 552 | if let Some(var_data) = self.save_ctxt.get_item_data(item) { |
54a0048b SL |
553 | down_cast_data!(var_data, VariableData, item.span); |
554 | if !self.span.filter_generated(Some(var_data.span), item.span) { | |
a7813a04 | 555 | self.dumper.variable(var_data.lower(self.tcx)); |
54a0048b | 556 | } |
7453a54e | 557 | } |
d9579d0f AL |
558 | self.visit_ty(&typ); |
559 | self.visit_expr(expr); | |
560 | } | |
561 | ||
9e0c209e SL |
562 | fn process_assoc_const(&mut self, |
563 | id: ast::NodeId, | |
564 | name: ast::Name, | |
565 | span: Span, | |
566 | typ: &ast::Ty, | |
567 | expr: &ast::Expr, | |
568 | parent_id: DefId, | |
569 | vis: Visibility, | |
570 | attrs: &[Attribute]) { | |
54a0048b | 571 | let qualname = format!("::{}", self.tcx.node_path_str(id)); |
d9579d0f | 572 | |
b039eaaf | 573 | let sub_span = self.span.sub_span_after_keyword(span, keywords::Const); |
d9579d0f | 574 | |
54a0048b | 575 | if !self.span.filter_generated(sub_span, span) { |
a7813a04 | 576 | self.dumper.variable(VariableData { |
54a0048b | 577 | span: sub_span.expect("No span found for variable"), |
3157f602 | 578 | kind: VariableKind::Const, |
54a0048b SL |
579 | id: id, |
580 | name: name.to_string(), | |
581 | qualname: qualname, | |
582 | value: self.span.snippet(expr.span), | |
583 | type_value: ty_to_string(&typ), | |
9e0c209e SL |
584 | scope: self.cur_scope, |
585 | parent: Some(parent_id), | |
586 | visibility: vis, | |
587 | docs: docs_for_attrs(attrs), | |
a7813a04 | 588 | }.lower(self.tcx)); |
54a0048b | 589 | } |
d9579d0f AL |
590 | |
591 | // walk type and init value | |
592 | self.visit_ty(typ); | |
593 | self.visit_expr(expr); | |
594 | } | |
595 | ||
a7813a04 | 596 | // FIXME tuple structs should generate tuple-specific data. |
d9579d0f AL |
597 | fn process_struct(&mut self, |
598 | item: &ast::Item, | |
b039eaaf | 599 | def: &ast::VariantData, |
d9579d0f | 600 | ty_params: &ast::Generics) { |
a7813a04 | 601 | let name = item.ident.to_string(); |
54a0048b | 602 | let qualname = format!("::{}", self.tcx.node_path_str(item.id)); |
d9579d0f | 603 | |
d9579d0f | 604 | let sub_span = self.span.sub_span_after_keyword(item.span, keywords::Struct); |
3157f602 XL |
605 | let (val, fields) = |
606 | if let ast::ItemKind::Struct(ast::VariantData::Struct(ref fields, _), _) = item.node | |
607 | { | |
a7813a04 XL |
608 | let fields_str = fields.iter() |
609 | .enumerate() | |
610 | .map(|(i, f)| f.ident.map(|i| i.to_string()) | |
611 | .unwrap_or(i.to_string())) | |
612 | .collect::<Vec<_>>() | |
613 | .join(", "); | |
3157f602 | 614 | (format!("{} {{ {} }}", name, fields_str), fields.iter().map(|f| f.id).collect()) |
a7813a04 | 615 | } else { |
3157f602 | 616 | (String::new(), vec![]) |
a7813a04 XL |
617 | }; |
618 | ||
54a0048b | 619 | if !self.span.filter_generated(sub_span, item.span) { |
a7813a04 | 620 | self.dumper.struct_data(StructData { |
54a0048b SL |
621 | span: sub_span.expect("No span found for struct"), |
622 | id: item.id, | |
a7813a04 | 623 | name: name, |
54a0048b SL |
624 | ctor_id: def.id(), |
625 | qualname: qualname.clone(), | |
626 | scope: self.cur_scope, | |
3157f602 XL |
627 | value: val, |
628 | fields: fields, | |
9e0c209e SL |
629 | visibility: From::from(&item.vis), |
630 | docs: docs_for_attrs(&item.attrs), | |
a7813a04 | 631 | }.lower(self.tcx)); |
54a0048b SL |
632 | } |
633 | ||
d9579d0f AL |
634 | |
635 | // fields | |
b039eaaf | 636 | for field in def.fields() { |
62682a34 | 637 | self.process_struct_field_def(field, item.id); |
54a0048b | 638 | self.visit_ty(&field.ty); |
d9579d0f AL |
639 | } |
640 | ||
62682a34 | 641 | self.process_generic_params(ty_params, item.span, &qualname, item.id); |
d9579d0f AL |
642 | } |
643 | ||
644 | fn process_enum(&mut self, | |
645 | item: &ast::Item, | |
646 | enum_definition: &ast::EnumDef, | |
647 | ty_params: &ast::Generics) { | |
62682a34 | 648 | let enum_data = self.save_ctxt.get_item_data(item); |
7453a54e SL |
649 | let enum_data = match enum_data { |
650 | None => return, | |
651 | Some(data) => data, | |
652 | }; | |
54a0048b | 653 | down_cast_data!(enum_data, EnumData, item.span); |
a7813a04 XL |
654 | if !self.span.filter_generated(Some(enum_data.span), item.span) { |
655 | self.dumper.enum_data(enum_data.clone().lower(self.tcx)); | |
54a0048b | 656 | } |
62682a34 | 657 | |
d9579d0f | 658 | for variant in &enum_definition.variants { |
a7813a04 | 659 | let name = variant.node.name.name.to_string(); |
62682a34 | 660 | let mut qualname = enum_data.qualname.clone(); |
d9579d0f | 661 | qualname.push_str("::"); |
a7813a04 | 662 | qualname.push_str(&name); |
b039eaaf | 663 | |
7453a54e | 664 | match variant.node.data { |
a7813a04 | 665 | ast::VariantData::Struct(ref fields, _) => { |
54a0048b | 666 | let sub_span = self.span.span_for_first_ident(variant.span); |
a7813a04 XL |
667 | let fields_str = fields.iter() |
668 | .enumerate() | |
669 | .map(|(i, f)| f.ident.map(|i| i.to_string()) | |
670 | .unwrap_or(i.to_string())) | |
671 | .collect::<Vec<_>>() | |
672 | .join(", "); | |
673 | let val = format!("{}::{} {{ {} }}", enum_data.name, name, fields_str); | |
54a0048b | 674 | if !self.span.filter_generated(sub_span, variant.span) { |
a7813a04 | 675 | self.dumper.struct_variant(StructVariantData { |
54a0048b SL |
676 | span: sub_span.expect("No span found for struct variant"), |
677 | id: variant.node.data.id(), | |
a7813a04 | 678 | name: name, |
54a0048b SL |
679 | qualname: qualname, |
680 | type_value: enum_data.qualname.clone(), | |
681 | value: val, | |
9e0c209e SL |
682 | scope: enum_data.scope, |
683 | parent: Some(make_def_id(item.id, &self.tcx.map)), | |
684 | docs: docs_for_attrs(&variant.node.attrs), | |
a7813a04 | 685 | }.lower(self.tcx)); |
54a0048b | 686 | } |
7453a54e | 687 | } |
a7813a04 | 688 | ref v => { |
54a0048b | 689 | let sub_span = self.span.span_for_first_ident(variant.span); |
a7813a04 XL |
690 | let mut val = format!("{}::{}", enum_data.name, name); |
691 | if let &ast::VariantData::Tuple(ref fields, _) = v { | |
692 | val.push('('); | |
693 | val.push_str(&fields.iter() | |
694 | .map(|f| ty_to_string(&f.ty)) | |
695 | .collect::<Vec<_>>() | |
696 | .join(", ")); | |
697 | val.push(')'); | |
698 | } | |
54a0048b | 699 | if !self.span.filter_generated(sub_span, variant.span) { |
a7813a04 | 700 | self.dumper.tuple_variant(TupleVariantData { |
54a0048b SL |
701 | span: sub_span.expect("No span found for tuple variant"), |
702 | id: variant.node.data.id(), | |
a7813a04 | 703 | name: name, |
54a0048b SL |
704 | qualname: qualname, |
705 | type_value: enum_data.qualname.clone(), | |
706 | value: val, | |
9e0c209e SL |
707 | scope: enum_data.scope, |
708 | parent: Some(make_def_id(item.id, &self.tcx.map)), | |
709 | docs: docs_for_attrs(&variant.node.attrs), | |
a7813a04 | 710 | }.lower(self.tcx)); |
54a0048b | 711 | } |
7453a54e SL |
712 | } |
713 | } | |
714 | ||
b039eaaf SL |
715 | |
716 | for field in variant.node.data.fields() { | |
717 | self.process_struct_field_def(field, variant.node.data.id()); | |
54a0048b | 718 | self.visit_ty(&field.ty); |
d9579d0f AL |
719 | } |
720 | } | |
62682a34 | 721 | self.process_generic_params(ty_params, item.span, &enum_data.qualname, enum_data.id); |
d9579d0f AL |
722 | } |
723 | ||
724 | fn process_impl(&mut self, | |
725 | item: &ast::Item, | |
726 | type_parameters: &ast::Generics, | |
727 | trait_ref: &Option<ast::TraitRef>, | |
728 | typ: &ast::Ty, | |
7453a54e SL |
729 | impl_items: &[ast::ImplItem]) { |
730 | let mut has_self_ref = false; | |
731 | if let Some(impl_data) = self.save_ctxt.get_item_data(item) { | |
54a0048b | 732 | down_cast_data!(impl_data, ImplData, item.span); |
7453a54e SL |
733 | if let Some(ref self_ref) = impl_data.self_ref { |
734 | has_self_ref = true; | |
54a0048b | 735 | if !self.span.filter_generated(Some(self_ref.span), item.span) { |
a7813a04 | 736 | self.dumper.type_ref(self_ref.clone().lower(self.tcx)); |
54a0048b | 737 | } |
62682a34 | 738 | } |
7453a54e | 739 | if let Some(ref trait_ref_data) = impl_data.trait_ref { |
54a0048b | 740 | if !self.span.filter_generated(Some(trait_ref_data.span), item.span) { |
a7813a04 | 741 | self.dumper.type_ref(trait_ref_data.clone().lower(self.tcx)); |
54a0048b SL |
742 | } |
743 | ||
7453a54e | 744 | visit::walk_path(self, &trait_ref.as_ref().unwrap().path); |
d9579d0f | 745 | } |
7453a54e | 746 | |
54a0048b | 747 | if !self.span.filter_generated(Some(impl_data.span), item.span) { |
a7813a04 | 748 | self.dumper.impl_data(ImplData { |
54a0048b SL |
749 | id: impl_data.id, |
750 | span: impl_data.span, | |
751 | scope: impl_data.scope, | |
752 | trait_ref: impl_data.trait_ref.map(|d| d.ref_id.unwrap()), | |
753 | self_ref: impl_data.self_ref.map(|d| d.ref_id.unwrap()) | |
a7813a04 | 754 | }.lower(self.tcx)); |
54a0048b | 755 | } |
d9579d0f | 756 | } |
7453a54e SL |
757 | if !has_self_ref { |
758 | self.visit_ty(&typ); | |
d9579d0f | 759 | } |
d9579d0f AL |
760 | self.process_generic_params(type_parameters, item.span, "", item.id); |
761 | for impl_item in impl_items { | |
9e0c209e SL |
762 | let map = &self.tcx.map; |
763 | self.process_impl_item(impl_item, make_def_id(item.id, map)); | |
d9579d0f AL |
764 | } |
765 | } | |
766 | ||
767 | fn process_trait(&mut self, | |
768 | item: &ast::Item, | |
769 | generics: &ast::Generics, | |
9cc50fc6 | 770 | trait_refs: &ast::TyParamBounds, |
7453a54e | 771 | methods: &[ast::TraitItem]) { |
a7813a04 | 772 | let name = item.ident.to_string(); |
54a0048b | 773 | let qualname = format!("::{}", self.tcx.node_path_str(item.id)); |
a7813a04 XL |
774 | let mut val = name.clone(); |
775 | if !generics.lifetimes.is_empty() || !generics.ty_params.is_empty() { | |
776 | val.push_str(&generics_to_string(generics)); | |
777 | } | |
778 | if !trait_refs.is_empty() { | |
779 | val.push_str(": "); | |
780 | val.push_str(&bounds_to_string(trait_refs)); | |
781 | } | |
d9579d0f | 782 | let sub_span = self.span.sub_span_after_keyword(item.span, keywords::Trait); |
54a0048b | 783 | if !self.span.filter_generated(sub_span, item.span) { |
a7813a04 | 784 | self.dumper.trait_data(TraitData { |
54a0048b SL |
785 | span: sub_span.expect("No span found for trait"), |
786 | id: item.id, | |
a7813a04 | 787 | name: name, |
54a0048b SL |
788 | qualname: qualname.clone(), |
789 | scope: self.cur_scope, | |
3157f602 XL |
790 | value: val, |
791 | items: methods.iter().map(|i| i.id).collect(), | |
9e0c209e SL |
792 | visibility: From::from(&item.vis), |
793 | docs: docs_for_attrs(&item.attrs), | |
a7813a04 | 794 | }.lower(self.tcx)); |
54a0048b | 795 | } |
d9579d0f AL |
796 | |
797 | // super-traits | |
62682a34 | 798 | for super_bound in trait_refs.iter() { |
d9579d0f AL |
799 | let trait_ref = match *super_bound { |
800 | ast::TraitTyParamBound(ref trait_ref, _) => { | |
801 | trait_ref | |
802 | } | |
803 | ast::RegionTyParamBound(..) => { | |
804 | continue; | |
805 | } | |
806 | }; | |
807 | ||
808 | let trait_ref = &trait_ref.trait_ref; | |
c30ab7b3 | 809 | if let Some(id) = self.lookup_def_id(trait_ref.ref_id) { |
54a0048b SL |
810 | let sub_span = self.span.sub_span_for_type_name(trait_ref.path.span); |
811 | if !self.span.filter_generated(sub_span, trait_ref.path.span) { | |
a7813a04 | 812 | self.dumper.type_ref(TypeRefData { |
54a0048b SL |
813 | span: sub_span.expect("No span found for trait ref"), |
814 | ref_id: Some(id), | |
815 | scope: self.cur_scope, | |
816 | qualname: String::new() | |
a7813a04 | 817 | }.lower(self.tcx)); |
54a0048b SL |
818 | } |
819 | ||
820 | if !self.span.filter_generated(sub_span, trait_ref.path.span) { | |
821 | let sub_span = sub_span.expect("No span for inheritance"); | |
822 | self.dumper.inheritance(InheritanceData { | |
823 | span: sub_span, | |
824 | base_id: id, | |
825 | deriv_id: item.id | |
a7813a04 | 826 | }.lower(self.tcx)); |
e9174d1e | 827 | } |
d9579d0f AL |
828 | } |
829 | } | |
830 | ||
831 | // walk generics and methods | |
62682a34 | 832 | self.process_generic_params(generics, item.span, &qualname, item.id); |
d9579d0f | 833 | for method in methods { |
9e0c209e SL |
834 | let map = &self.tcx.map; |
835 | self.process_trait_item(method, make_def_id(item.id, map)) | |
d9579d0f AL |
836 | } |
837 | } | |
838 | ||
e9174d1e SL |
839 | // `item` is the module in question, represented as an item. |
840 | fn process_mod(&mut self, item: &ast::Item) { | |
7453a54e | 841 | if let Some(mod_data) = self.save_ctxt.get_item_data(item) { |
54a0048b SL |
842 | down_cast_data!(mod_data, ModData, item.span); |
843 | if !self.span.filter_generated(Some(mod_data.span), item.span) { | |
a7813a04 | 844 | self.dumper.mod_data(mod_data.lower(self.tcx)); |
54a0048b | 845 | } |
7453a54e | 846 | } |
d9579d0f AL |
847 | } |
848 | ||
e9174d1e | 849 | fn process_path(&mut self, id: NodeId, path: &ast::Path, ref_kind: Option<recorder::Row>) { |
7453a54e SL |
850 | let path_data = self.save_ctxt.get_path_data(id, path); |
851 | if generated_code(path.span) && path_data.is_none() { | |
c1a9b12d | 852 | return; |
d9579d0f AL |
853 | } |
854 | ||
c1a9b12d SL |
855 | let path_data = match path_data { |
856 | Some(pd) => pd, | |
857 | None => { | |
c30ab7b3 | 858 | return; |
c1a9b12d SL |
859 | } |
860 | }; | |
54a0048b | 861 | |
c1a9b12d | 862 | match path_data { |
54a0048b SL |
863 | Data::VariableRefData(vrd) => { |
864 | // FIXME: this whole block duplicates the code in process_def_kind | |
865 | if !self.span.filter_generated(Some(vrd.span), path.span) { | |
866 | match ref_kind { | |
867 | Some(recorder::TypeRef) => { | |
a7813a04 | 868 | self.dumper.type_ref(TypeRefData { |
54a0048b SL |
869 | span: vrd.span, |
870 | ref_id: Some(vrd.ref_id), | |
871 | scope: vrd.scope, | |
872 | qualname: String::new() | |
a7813a04 | 873 | }.lower(self.tcx)); |
54a0048b SL |
874 | } |
875 | Some(recorder::FnRef) => { | |
a7813a04 | 876 | self.dumper.function_ref(FunctionRefData { |
54a0048b SL |
877 | span: vrd.span, |
878 | ref_id: vrd.ref_id, | |
879 | scope: vrd.scope | |
a7813a04 | 880 | }.lower(self.tcx)); |
54a0048b SL |
881 | } |
882 | Some(recorder::ModRef) => { | |
a7813a04 | 883 | self.dumper.mod_ref( ModRefData { |
54a0048b SL |
884 | span: vrd.span, |
885 | ref_id: Some(vrd.ref_id), | |
886 | scope: vrd.scope, | |
887 | qualname: String::new() | |
a7813a04 | 888 | }.lower(self.tcx)); |
54a0048b SL |
889 | } |
890 | Some(recorder::VarRef) | None | |
a7813a04 | 891 | => self.dumper.variable_ref(vrd.lower(self.tcx)) |
54a0048b SL |
892 | } |
893 | } | |
c1a9b12d SL |
894 | |
895 | } | |
54a0048b SL |
896 | Data::TypeRefData(trd) => { |
897 | if !self.span.filter_generated(Some(trd.span), path.span) { | |
a7813a04 | 898 | self.dumper.type_ref(trd.lower(self.tcx)); |
54a0048b | 899 | } |
c1a9b12d | 900 | } |
54a0048b SL |
901 | Data::MethodCallData(mcd) => { |
902 | if !self.span.filter_generated(Some(mcd.span), path.span) { | |
a7813a04 | 903 | self.dumper.method_call(mcd.lower(self.tcx)); |
54a0048b | 904 | } |
c1a9b12d SL |
905 | } |
906 | Data::FunctionCallData(fcd) => { | |
54a0048b | 907 | if !self.span.filter_generated(Some(fcd.span), path.span) { |
a7813a04 | 908 | self.dumper.function_call(fcd.lower(self.tcx)); |
54a0048b | 909 | } |
c1a9b12d SL |
910 | } |
911 | _ => { | |
54a0048b | 912 | span_bug!(path.span, "Unexpected data: {:?}", path_data); |
d9579d0f | 913 | } |
d9579d0f | 914 | } |
c1a9b12d SL |
915 | |
916 | // Modules or types in the path prefix. | |
3157f602 | 917 | match self.tcx.expect_def(id) { |
7453a54e | 918 | Def::Method(did) => { |
c1a9b12d | 919 | let ti = self.tcx.impl_or_trait_item(did); |
d9579d0f | 920 | if let ty::MethodTraitItem(m) = ti { |
9cc50fc6 | 921 | if m.explicit_self == ty::ExplicitSelfCategory::Static { |
d9579d0f AL |
922 | self.write_sub_path_trait_truncated(path); |
923 | } | |
924 | } | |
925 | } | |
c30ab7b3 | 926 | Def::Fn(..) | |
7453a54e | 927 | Def::Const(..) | |
c30ab7b3 SL |
928 | Def::Static(..) | |
929 | Def::StructCtor(..) | | |
930 | Def::VariantCtor(..) | | |
7453a54e | 931 | Def::AssociatedConst(..) | |
c30ab7b3 SL |
932 | Def::Local(..) | |
933 | Def::Upvar(..) | | |
7453a54e | 934 | Def::Struct(..) | |
c30ab7b3 | 935 | Def::Union(..) | |
7453a54e | 936 | Def::Variant(..) | |
c30ab7b3 SL |
937 | Def::TyAlias(..) | |
938 | Def::AssociatedTy(..) => self.write_sub_paths_truncated(path, false), | |
e9174d1e | 939 | _ => {} |
d9579d0f AL |
940 | } |
941 | } | |
942 | ||
943 | fn process_struct_lit(&mut self, | |
944 | ex: &ast::Expr, | |
945 | path: &ast::Path, | |
946 | fields: &Vec<ast::Field>, | |
e9174d1e | 947 | variant: ty::VariantDef, |
d9579d0f | 948 | base: &Option<P<ast::Expr>>) { |
d9579d0f AL |
949 | self.write_sub_paths_truncated(path, false); |
950 | ||
62682a34 | 951 | if let Some(struct_lit_data) = self.save_ctxt.get_expr_data(ex) { |
54a0048b SL |
952 | down_cast_data!(struct_lit_data, TypeRefData, ex.span); |
953 | if !self.span.filter_generated(Some(struct_lit_data.span), ex.span) { | |
a7813a04 | 954 | self.dumper.type_ref(struct_lit_data.lower(self.tcx)); |
54a0048b SL |
955 | } |
956 | ||
c1a9b12d | 957 | let scope = self.save_ctxt.enclosing_scope(ex.id); |
62682a34 SL |
958 | |
959 | for field in fields { | |
7453a54e SL |
960 | if let Some(field_data) = self.save_ctxt |
961 | .get_field_ref_data(field, variant, scope) { | |
d9579d0f | 962 | |
54a0048b | 963 | if !self.span.filter_generated(Some(field_data.span), field.ident.span) { |
a7813a04 | 964 | self.dumper.variable_ref(field_data.lower(self.tcx)); |
54a0048b | 965 | } |
7453a54e | 966 | } |
62682a34 SL |
967 | |
968 | self.visit_expr(&field.expr) | |
969 | } | |
d9579d0f | 970 | } |
62682a34 | 971 | |
b039eaaf | 972 | walk_list!(self, visit_expr, base); |
d9579d0f AL |
973 | } |
974 | ||
e9174d1e | 975 | fn process_method_call(&mut self, ex: &ast::Expr, args: &Vec<P<ast::Expr>>) { |
54a0048b SL |
976 | if let Some(mcd) = self.save_ctxt.get_expr_data(ex) { |
977 | down_cast_data!(mcd, MethodCallData, ex.span); | |
978 | if !self.span.filter_generated(Some(mcd.span), ex.span) { | |
a7813a04 | 979 | self.dumper.method_call(mcd.lower(self.tcx)); |
54a0048b | 980 | } |
c1a9b12d | 981 | } |
d9579d0f AL |
982 | |
983 | // walk receiver and args | |
b039eaaf | 984 | walk_list!(self, visit_expr, args); |
d9579d0f AL |
985 | } |
986 | ||
e9174d1e | 987 | fn process_pat(&mut self, p: &ast::Pat) { |
d9579d0f | 988 | match p.node { |
7453a54e | 989 | PatKind::Struct(ref path, ref fields, _) => { |
d9579d0f | 990 | visit::walk_path(self, path); |
c30ab7b3 | 991 | let adt = self.tcx.tables().node_id_to_type(p.id).ty_adt_def().unwrap(); |
3157f602 | 992 | let variant = adt.variant_of_def(self.tcx.expect_def(p.id)); |
d9579d0f | 993 | |
e9174d1e | 994 | for &Spanned { node: ref field, span } in fields { |
e9174d1e SL |
995 | let sub_span = self.span.span_for_first_ident(span); |
996 | if let Some(f) = variant.find_field_named(field.ident.name) { | |
54a0048b | 997 | if !self.span.filter_generated(sub_span, span) { |
a7813a04 | 998 | self.dumper.variable_ref(VariableRefData { |
54a0048b SL |
999 | span: sub_span.expect("No span fund for var ref"), |
1000 | ref_id: f.did, | |
1001 | scope: self.cur_scope, | |
1002 | name: String::new() | |
a7813a04 | 1003 | }.lower(self.tcx)); |
54a0048b | 1004 | } |
d9579d0f | 1005 | } |
e9174d1e | 1006 | self.visit_pat(&field.pat); |
d9579d0f AL |
1007 | } |
1008 | } | |
e9174d1e | 1009 | _ => visit::walk_pat(self, p), |
d9579d0f AL |
1010 | } |
1011 | } | |
b039eaaf SL |
1012 | |
1013 | ||
1014 | fn process_var_decl(&mut self, p: &ast::Pat, value: String) { | |
1015 | // The local could declare multiple new vars, we must walk the | |
1016 | // pattern and collect them all. | |
1017 | let mut collector = PathCollector::new(); | |
1018 | collector.visit_pat(&p); | |
1019 | self.visit_pat(&p); | |
1020 | ||
1021 | for &(id, ref p, immut, _) in &collector.collected_paths { | |
9e0c209e SL |
1022 | let mut value = match immut { |
1023 | ast::Mutability::Immutable => value.to_string(), | |
1024 | _ => String::new(), | |
b039eaaf | 1025 | }; |
c30ab7b3 | 1026 | let typ = match self.tcx.tables().node_types.get(&id) { |
9e0c209e SL |
1027 | Some(typ) => { |
1028 | let typ = typ.to_string(); | |
1029 | if !value.is_empty() { | |
1030 | value.push_str(": "); | |
1031 | } | |
1032 | value.push_str(&typ); | |
1033 | typ | |
1034 | } | |
1035 | None => String::new(), | |
1036 | }; | |
1037 | ||
b039eaaf SL |
1038 | // Get the span only for the name of the variable (I hope the path |
1039 | // is only ever a variable name, but who knows?). | |
1040 | let sub_span = self.span.span_for_last_ident(p.span); | |
1041 | // Rust uses the id of the pattern for var lookups, so we'll use it too. | |
54a0048b | 1042 | if !self.span.filter_generated(sub_span, p.span) { |
a7813a04 | 1043 | self.dumper.variable(VariableData { |
54a0048b | 1044 | span: sub_span.expect("No span found for variable"), |
3157f602 | 1045 | kind: VariableKind::Local, |
54a0048b SL |
1046 | id: id, |
1047 | name: path_to_string(p), | |
1048 | qualname: format!("{}${}", path_to_string(p), id), | |
1049 | value: value, | |
1050 | type_value: typ, | |
9e0c209e SL |
1051 | scope: CRATE_NODE_ID, |
1052 | parent: None, | |
1053 | visibility: Visibility::Inherited, | |
1054 | docs: String::new(), | |
a7813a04 | 1055 | }.lower(self.tcx)); |
54a0048b | 1056 | } |
b039eaaf SL |
1057 | } |
1058 | } | |
7453a54e SL |
1059 | |
1060 | /// Extract macro use and definition information from the AST node defined | |
1061 | /// by the given NodeId, using the expansion information from the node's | |
1062 | /// span. | |
1063 | /// | |
1064 | /// If the span is not macro-generated, do nothing, else use callee and | |
1065 | /// callsite spans to record macro definition and use data, using the | |
1066 | /// mac_uses and mac_defs sets to prevent multiples. | |
1067 | fn process_macro_use(&mut self, span: Span, id: NodeId) { | |
1068 | let data = match self.save_ctxt.get_macro_use_data(span, id) { | |
1069 | None => return, | |
1070 | Some(data) => data, | |
1071 | }; | |
9e0c209e | 1072 | let mut hasher = DefaultHasher::new(); |
7453a54e SL |
1073 | data.callee_span.hash(&mut hasher); |
1074 | let hash = hasher.finish(); | |
1075 | let qualname = format!("{}::{}", data.name, hash); | |
1076 | // Don't write macro definition for imported macros | |
1077 | if !self.mac_defs.contains(&data.callee_span) | |
1078 | && !data.imported { | |
1079 | self.mac_defs.insert(data.callee_span); | |
1080 | if let Some(sub_span) = self.span.span_for_macro_def_name(data.callee_span) { | |
a7813a04 | 1081 | self.dumper.macro_data(MacroData { |
54a0048b SL |
1082 | span: sub_span, |
1083 | name: data.name.clone(), | |
9e0c209e SL |
1084 | qualname: qualname.clone(), |
1085 | // FIXME where do macro docs come from? | |
1086 | docs: String::new(), | |
a7813a04 | 1087 | }.lower(self.tcx)); |
7453a54e SL |
1088 | } |
1089 | } | |
1090 | if !self.mac_uses.contains(&data.span) { | |
1091 | self.mac_uses.insert(data.span); | |
1092 | if let Some(sub_span) = self.span.span_for_macro_use_name(data.span) { | |
a7813a04 | 1093 | self.dumper.macro_use(MacroUseData { |
54a0048b SL |
1094 | span: sub_span, |
1095 | name: data.name, | |
1096 | qualname: qualname, | |
1097 | scope: data.scope, | |
1098 | callee_span: data.callee_span, | |
9e0c209e | 1099 | imported: data.imported, |
a7813a04 | 1100 | }.lower(self.tcx)); |
7453a54e SL |
1101 | } |
1102 | } | |
1103 | } | |
9e0c209e SL |
1104 | |
1105 | fn process_trait_item(&mut self, trait_item: &ast::TraitItem, trait_id: DefId) { | |
1106 | self.process_macro_use(trait_item.span, trait_item.id); | |
1107 | match trait_item.node { | |
1108 | ast::TraitItemKind::Const(ref ty, Some(ref expr)) => { | |
1109 | self.process_assoc_const(trait_item.id, | |
1110 | trait_item.ident.name, | |
1111 | trait_item.span, | |
1112 | &ty, | |
1113 | &expr, | |
1114 | trait_id, | |
1115 | Visibility::Public, | |
1116 | &trait_item.attrs); | |
1117 | } | |
1118 | ast::TraitItemKind::Method(ref sig, ref body) => { | |
1119 | self.process_method(sig, | |
1120 | body.as_ref().map(|x| &**x), | |
1121 | trait_item.id, | |
1122 | trait_item.ident.name, | |
1123 | Visibility::Public, | |
1124 | &trait_item.attrs, | |
1125 | trait_item.span); | |
1126 | } | |
1127 | ast::TraitItemKind::Const(_, None) | | |
1128 | ast::TraitItemKind::Type(..) | | |
1129 | ast::TraitItemKind::Macro(_) => {} | |
1130 | } | |
1131 | } | |
1132 | ||
1133 | fn process_impl_item(&mut self, impl_item: &ast::ImplItem, impl_id: DefId) { | |
1134 | self.process_macro_use(impl_item.span, impl_item.id); | |
1135 | match impl_item.node { | |
1136 | ast::ImplItemKind::Const(ref ty, ref expr) => { | |
1137 | self.process_assoc_const(impl_item.id, | |
1138 | impl_item.ident.name, | |
1139 | impl_item.span, | |
1140 | &ty, | |
1141 | &expr, | |
1142 | impl_id, | |
1143 | From::from(&impl_item.vis), | |
1144 | &impl_item.attrs); | |
1145 | } | |
1146 | ast::ImplItemKind::Method(ref sig, ref body) => { | |
1147 | self.process_method(sig, | |
1148 | Some(body), | |
1149 | impl_item.id, | |
1150 | impl_item.ident.name, | |
1151 | From::from(&impl_item.vis), | |
1152 | &impl_item.attrs, | |
1153 | impl_item.span); | |
1154 | } | |
1155 | ast::ImplItemKind::Type(_) | | |
1156 | ast::ImplItemKind::Macro(_) => {} | |
1157 | } | |
1158 | } | |
d9579d0f AL |
1159 | } |
1160 | ||
3157f602 | 1161 | impl<'l, 'tcx: 'l, 'll, D: Dump +'ll> Visitor for DumpVisitor<'l, 'tcx, 'll, D> { |
d9579d0f | 1162 | fn visit_item(&mut self, item: &ast::Item) { |
7453a54e SL |
1163 | use syntax::ast::ItemKind::*; |
1164 | self.process_macro_use(item.span, item.id); | |
d9579d0f | 1165 | match item.node { |
7453a54e | 1166 | Use(ref use_item) => { |
d9579d0f AL |
1167 | match use_item.node { |
1168 | ast::ViewPathSimple(ident, ref path) => { | |
1169 | let sub_span = self.span.span_for_last_ident(path.span); | |
c30ab7b3 | 1170 | let mod_id = match self.lookup_def_id(item.id) { |
d9579d0f | 1171 | Some(def_id) => { |
54a0048b SL |
1172 | let scope = self.cur_scope; |
1173 | self.process_def_kind(item.id, path.span, sub_span, def_id, scope); | |
1174 | ||
d9579d0f | 1175 | Some(def_id) |
e9174d1e | 1176 | } |
d9579d0f AL |
1177 | None => None, |
1178 | }; | |
1179 | ||
1180 | // 'use' always introduces an alias, if there is not an explicit | |
1181 | // one, there is an implicit one. | |
b039eaaf SL |
1182 | let sub_span = match self.span.sub_span_after_keyword(use_item.span, |
1183 | keywords::As) { | |
1184 | Some(sub_span) => Some(sub_span), | |
1185 | None => sub_span, | |
1186 | }; | |
d9579d0f | 1187 | |
54a0048b | 1188 | if !self.span.filter_generated(sub_span, path.span) { |
a7813a04 | 1189 | self.dumper.use_data(UseData { |
54a0048b SL |
1190 | span: sub_span.expect("No span found for use"), |
1191 | id: item.id, | |
1192 | mod_id: mod_id, | |
a7813a04 | 1193 | name: ident.to_string(), |
9e0c209e SL |
1194 | scope: self.cur_scope, |
1195 | visibility: From::from(&item.vis), | |
a7813a04 | 1196 | }.lower(self.tcx)); |
54a0048b | 1197 | } |
d9579d0f AL |
1198 | self.write_sub_paths_truncated(path, true); |
1199 | } | |
1200 | ast::ViewPathGlob(ref path) => { | |
1201 | // Make a comma-separated list of names of imported modules. | |
54a0048b | 1202 | let mut names = vec![]; |
d9579d0f AL |
1203 | let glob_map = &self.analysis.glob_map; |
1204 | let glob_map = glob_map.as_ref().unwrap(); | |
1205 | if glob_map.contains_key(&item.id) { | |
1206 | for n in glob_map.get(&item.id).unwrap() { | |
54a0048b | 1207 | names.push(n.to_string()); |
d9579d0f AL |
1208 | } |
1209 | } | |
1210 | ||
b039eaaf | 1211 | let sub_span = self.span |
a7813a04 XL |
1212 | .sub_span_of_token(item.span, token::BinOp(token::Star)); |
1213 | if !self.span.filter_generated(sub_span, item.span) { | |
1214 | self.dumper.use_glob(UseGlobData { | |
54a0048b SL |
1215 | span: sub_span.expect("No span found for use glob"), |
1216 | id: item.id, | |
1217 | names: names, | |
9e0c209e SL |
1218 | scope: self.cur_scope, |
1219 | visibility: From::from(&item.vis), | |
a7813a04 | 1220 | }.lower(self.tcx)); |
54a0048b | 1221 | } |
d9579d0f AL |
1222 | self.write_sub_paths(path, true); |
1223 | } | |
1224 | ast::ViewPathList(ref path, ref list) => { | |
1225 | for plid in list { | |
9e0c209e SL |
1226 | let scope = self.cur_scope; |
1227 | let id = plid.node.id; | |
c30ab7b3 | 1228 | if let Some(def_id) = self.lookup_def_id(id) { |
9e0c209e SL |
1229 | let span = plid.span; |
1230 | self.process_def_kind(id, span, Some(span), def_id, scope); | |
d9579d0f AL |
1231 | } |
1232 | } | |
1233 | ||
1234 | self.write_sub_paths(path, true); | |
1235 | } | |
1236 | } | |
1237 | } | |
7453a54e | 1238 | ExternCrate(ref s) => { |
d9579d0f AL |
1239 | let location = match *s { |
1240 | Some(s) => s.to_string(), | |
c1a9b12d | 1241 | None => item.ident.to_string(), |
d9579d0f AL |
1242 | }; |
1243 | let alias_span = self.span.span_for_last_ident(item.span); | |
92a42be0 | 1244 | let cnum = match self.sess.cstore.extern_mod_stmt_cnum(item.id) { |
d9579d0f | 1245 | Some(cnum) => cnum, |
9e0c209e | 1246 | None => LOCAL_CRATE, |
d9579d0f | 1247 | }; |
54a0048b SL |
1248 | |
1249 | if !self.span.filter_generated(alias_span, item.span) { | |
a7813a04 | 1250 | self.dumper.extern_crate(ExternCrateData { |
54a0048b | 1251 | id: item.id, |
a7813a04 | 1252 | name: item.ident.to_string(), |
54a0048b SL |
1253 | crate_num: cnum, |
1254 | location: location, | |
1255 | span: alias_span.expect("No span found for extern crate"), | |
1256 | scope: self.cur_scope, | |
a7813a04 | 1257 | }.lower(self.tcx)); |
54a0048b | 1258 | } |
d9579d0f | 1259 | } |
9e0c209e | 1260 | Fn(ref decl, .., ref ty_params, ref body) => |
7453a54e SL |
1261 | self.process_fn(item, &decl, ty_params, &body), |
1262 | Static(ref typ, _, ref expr) => | |
d9579d0f | 1263 | self.process_static_or_const_item(item, typ, expr), |
7453a54e | 1264 | Const(ref typ, ref expr) => |
d9579d0f | 1265 | self.process_static_or_const_item(item, &typ, &expr), |
7453a54e SL |
1266 | Struct(ref def, ref ty_params) => self.process_struct(item, def, ty_params), |
1267 | Enum(ref def, ref ty_params) => self.process_enum(item, def, ty_params), | |
9e0c209e | 1268 | Impl(.., |
d9579d0f AL |
1269 | ref ty_params, |
1270 | ref trait_ref, | |
1271 | ref typ, | |
1272 | ref impl_items) => { | |
b039eaaf | 1273 | self.process_impl(item, ty_params, trait_ref, &typ, impl_items) |
d9579d0f | 1274 | } |
7453a54e | 1275 | Trait(_, ref generics, ref trait_refs, ref methods) => |
d9579d0f | 1276 | self.process_trait(item, generics, trait_refs, methods), |
7453a54e | 1277 | Mod(ref m) => { |
62682a34 SL |
1278 | self.process_mod(item); |
1279 | self.nest(item.id, |v| visit::walk_mod(v, m)); | |
1280 | } | |
7453a54e | 1281 | Ty(ref ty, ref ty_params) => { |
54a0048b | 1282 | let qualname = format!("::{}", self.tcx.node_path_str(item.id)); |
7453a54e | 1283 | let value = ty_to_string(&ty); |
d9579d0f | 1284 | let sub_span = self.span.sub_span_after_keyword(item.span, keywords::Type); |
54a0048b | 1285 | if !self.span.filter_generated(sub_span, item.span) { |
a7813a04 | 1286 | self.dumper.typedef(TypeDefData { |
54a0048b | 1287 | span: sub_span.expect("No span found for typedef"), |
a7813a04 | 1288 | name: item.ident.to_string(), |
54a0048b SL |
1289 | id: item.id, |
1290 | qualname: qualname.clone(), | |
9e0c209e SL |
1291 | value: value, |
1292 | visibility: From::from(&item.vis), | |
1293 | parent: None, | |
1294 | docs: docs_for_attrs(&item.attrs), | |
a7813a04 | 1295 | }.lower(self.tcx)); |
54a0048b | 1296 | } |
d9579d0f | 1297 | |
7453a54e | 1298 | self.visit_ty(&ty); |
d9579d0f | 1299 | self.process_generic_params(ty_params, item.span, &qualname, item.id); |
e9174d1e | 1300 | } |
7453a54e | 1301 | Mac(_) => (), |
d9579d0f AL |
1302 | _ => visit::walk_item(self, item), |
1303 | } | |
1304 | } | |
1305 | ||
1306 | fn visit_generics(&mut self, generics: &ast::Generics) { | |
62682a34 SL |
1307 | for param in generics.ty_params.iter() { |
1308 | for bound in param.bounds.iter() { | |
d9579d0f AL |
1309 | if let ast::TraitTyParamBound(ref trait_ref, _) = *bound { |
1310 | self.process_trait_ref(&trait_ref.trait_ref); | |
1311 | } | |
1312 | } | |
1313 | if let Some(ref ty) = param.default { | |
7453a54e | 1314 | self.visit_ty(&ty); |
d9579d0f AL |
1315 | } |
1316 | } | |
1317 | } | |
1318 | ||
d9579d0f | 1319 | fn visit_ty(&mut self, t: &ast::Ty) { |
7453a54e | 1320 | self.process_macro_use(t.span, t.id); |
d9579d0f | 1321 | match t.node { |
7453a54e | 1322 | ast::TyKind::Path(_, ref path) => { |
c30ab7b3 | 1323 | if let Some(id) = self.lookup_def_id(t.id) { |
54a0048b SL |
1324 | let sub_span = self.span.sub_span_for_type_name(t.span); |
1325 | if !self.span.filter_generated(sub_span, t.span) { | |
a7813a04 | 1326 | self.dumper.type_ref(TypeRefData { |
54a0048b SL |
1327 | span: sub_span.expect("No span found for type ref"), |
1328 | ref_id: Some(id), | |
1329 | scope: self.cur_scope, | |
1330 | qualname: String::new() | |
a7813a04 | 1331 | }.lower(self.tcx)); |
e9174d1e | 1332 | } |
d9579d0f AL |
1333 | } |
1334 | ||
1335 | self.write_sub_paths_truncated(path, false); | |
1336 | ||
1337 | visit::walk_path(self, path); | |
e9174d1e | 1338 | } |
d9579d0f AL |
1339 | _ => visit::walk_ty(self, t), |
1340 | } | |
1341 | } | |
1342 | ||
1343 | fn visit_expr(&mut self, ex: &ast::Expr) { | |
7453a54e | 1344 | self.process_macro_use(ex.span, ex.id); |
d9579d0f | 1345 | match ex.node { |
7453a54e | 1346 | ast::ExprKind::Call(ref _f, ref _args) => { |
d9579d0f AL |
1347 | // Don't need to do anything for function calls, |
1348 | // because just walking the callee path does what we want. | |
1349 | visit::walk_expr(self, ex); | |
1350 | } | |
7453a54e | 1351 | ast::ExprKind::Path(_, ref path) => { |
c1a9b12d | 1352 | self.process_path(ex.id, path, None); |
d9579d0f AL |
1353 | visit::walk_expr(self, ex); |
1354 | } | |
7453a54e | 1355 | ast::ExprKind::Struct(ref path, ref fields, ref base) => { |
a7813a04 | 1356 | let hir_expr = self.save_ctxt.tcx.map.expect_expr(ex.id); |
c30ab7b3 | 1357 | let adt = self.tcx.tables().expr_ty(&hir_expr).ty_adt_def().unwrap(); |
3157f602 | 1358 | let def = self.tcx.expect_def(hir_expr.id); |
b039eaaf | 1359 | self.process_struct_lit(ex, path, fields, adt.variant_of_def(def), base) |
e9174d1e | 1360 | } |
9e0c209e | 1361 | ast::ExprKind::MethodCall(.., ref args) => self.process_method_call(ex, args), |
7453a54e | 1362 | ast::ExprKind::Field(ref sub_ex, _) => { |
62682a34 SL |
1363 | self.visit_expr(&sub_ex); |
1364 | ||
1365 | if let Some(field_data) = self.save_ctxt.get_expr_data(ex) { | |
54a0048b SL |
1366 | down_cast_data!(field_data, VariableRefData, ex.span); |
1367 | if !self.span.filter_generated(Some(field_data.span), ex.span) { | |
a7813a04 | 1368 | self.dumper.variable_ref(field_data.lower(self.tcx)); |
54a0048b | 1369 | } |
d9579d0f | 1370 | } |
e9174d1e | 1371 | } |
7453a54e SL |
1372 | ast::ExprKind::TupField(ref sub_ex, idx) => { |
1373 | self.visit_expr(&sub_ex); | |
d9579d0f | 1374 | |
5bcae85e SL |
1375 | let hir_node = match self.save_ctxt.tcx.map.find(sub_ex.id) { |
1376 | Some(Node::NodeExpr(expr)) => expr, | |
1377 | _ => { | |
1378 | debug!("Missing or weird node for sub-expression {} in {:?}", | |
1379 | sub_ex.id, ex); | |
1380 | return; | |
1381 | } | |
1382 | }; | |
c30ab7b3 | 1383 | let ty = &self.tcx.tables().expr_ty_adjusted(&hir_node).sty; |
d9579d0f | 1384 | match *ty { |
9e0c209e | 1385 | ty::TyAdt(def, _) => { |
e9174d1e | 1386 | let sub_span = self.span.sub_span_after_token(ex.span, token::Dot); |
54a0048b | 1387 | if !self.span.filter_generated(sub_span, ex.span) { |
a7813a04 | 1388 | self.dumper.variable_ref(VariableRefData { |
54a0048b SL |
1389 | span: sub_span.expect("No span found for var ref"), |
1390 | ref_id: def.struct_variant().fields[idx.node].did, | |
1391 | scope: self.cur_scope, | |
1392 | name: String::new() | |
a7813a04 | 1393 | }.lower(self.tcx)); |
54a0048b | 1394 | } |
d9579d0f | 1395 | } |
62682a34 | 1396 | ty::TyTuple(_) => {} |
54a0048b SL |
1397 | _ => span_bug!(ex.span, |
1398 | "Expected struct or tuple type, found {:?}", | |
1399 | ty), | |
d9579d0f | 1400 | } |
e9174d1e | 1401 | } |
a7813a04 | 1402 | ast::ExprKind::Closure(_, ref decl, ref body, _fn_decl_span) => { |
62682a34 | 1403 | let mut id = String::from("$"); |
d9579d0f | 1404 | id.push_str(&ex.id.to_string()); |
62682a34 | 1405 | self.process_formals(&decl.inputs, &id); |
d9579d0f AL |
1406 | |
1407 | // walk arg and return types | |
1408 | for arg in &decl.inputs { | |
7453a54e | 1409 | self.visit_ty(&arg.ty); |
d9579d0f AL |
1410 | } |
1411 | ||
7453a54e SL |
1412 | if let ast::FunctionRetTy::Ty(ref ret_ty) = decl.output { |
1413 | self.visit_ty(&ret_ty); | |
d9579d0f AL |
1414 | } |
1415 | ||
1416 | // walk the body | |
7453a54e | 1417 | self.nest(ex.id, |v| v.visit_block(&body)); |
e9174d1e | 1418 | } |
7453a54e SL |
1419 | ast::ExprKind::ForLoop(ref pattern, ref subexpression, ref block, _) | |
1420 | ast::ExprKind::WhileLet(ref pattern, ref subexpression, ref block, _) => { | |
a7813a04 | 1421 | let value = self.span.snippet(subexpression.span); |
b039eaaf SL |
1422 | self.process_var_decl(pattern, value); |
1423 | visit::walk_expr(self, subexpression); | |
1424 | visit::walk_block(self, block); | |
1425 | } | |
7453a54e | 1426 | ast::ExprKind::IfLet(ref pattern, ref subexpression, ref block, ref opt_else) => { |
a7813a04 | 1427 | let value = self.span.snippet(subexpression.span); |
b039eaaf SL |
1428 | self.process_var_decl(pattern, value); |
1429 | visit::walk_expr(self, subexpression); | |
1430 | visit::walk_block(self, block); | |
1431 | opt_else.as_ref().map(|el| visit::walk_expr(self, el)); | |
1432 | } | |
d9579d0f AL |
1433 | _ => { |
1434 | visit::walk_expr(self, ex) | |
1435 | } | |
1436 | } | |
1437 | } | |
1438 | ||
7453a54e SL |
1439 | fn visit_mac(&mut self, mac: &ast::Mac) { |
1440 | // These shouldn't exist in the AST at this point, log a span bug. | |
54a0048b | 1441 | span_bug!(mac.span, "macro invocation should have been expanded out of AST"); |
d9579d0f AL |
1442 | } |
1443 | ||
1444 | fn visit_pat(&mut self, p: &ast::Pat) { | |
7453a54e | 1445 | self.process_macro_use(p.span, p.id); |
d9579d0f AL |
1446 | self.process_pat(p); |
1447 | } | |
1448 | ||
1449 | fn visit_arm(&mut self, arm: &ast::Arm) { | |
1450 | let mut collector = PathCollector::new(); | |
1451 | for pattern in &arm.pats { | |
1452 | // collect paths from the arm's patterns | |
1453 | collector.visit_pat(&pattern); | |
1454 | self.visit_pat(&pattern); | |
1455 | } | |
1456 | ||
1457 | // This is to get around borrow checking, because we need mut self to call process_path. | |
1458 | let mut paths_to_process = vec![]; | |
c1a9b12d | 1459 | |
d9579d0f AL |
1460 | // process collected paths |
1461 | for &(id, ref p, immut, ref_kind) in &collector.collected_paths { | |
3157f602 | 1462 | match self.tcx.expect_def(id) { |
9e0c209e SL |
1463 | Def::Local(def_id) => { |
1464 | let id = self.tcx.map.as_local_node_id(def_id).unwrap(); | |
1465 | let mut value = if immut == ast::Mutability::Immutable { | |
d9579d0f AL |
1466 | self.span.snippet(p.span).to_string() |
1467 | } else { | |
1468 | "<mutable>".to_string() | |
1469 | }; | |
c30ab7b3 | 1470 | let typ = self.tcx.tables().node_types |
9e0c209e SL |
1471 | .get(&id).map(|t| t.to_string()).unwrap_or(String::new()); |
1472 | value.push_str(": "); | |
1473 | value.push_str(&typ); | |
d9579d0f | 1474 | |
b039eaaf SL |
1475 | assert!(p.segments.len() == 1, |
1476 | "qualified path for local variable def in arm"); | |
54a0048b | 1477 | if !self.span.filter_generated(Some(p.span), p.span) { |
a7813a04 | 1478 | self.dumper.variable(VariableData { |
54a0048b | 1479 | span: p.span, |
3157f602 | 1480 | kind: VariableKind::Local, |
54a0048b SL |
1481 | id: id, |
1482 | name: path_to_string(p), | |
1483 | qualname: format!("{}${}", path_to_string(p), id), | |
1484 | value: value, | |
9e0c209e SL |
1485 | type_value: typ, |
1486 | scope: CRATE_NODE_ID, | |
1487 | parent: None, | |
1488 | visibility: Visibility::Inherited, | |
1489 | docs: String::new(), | |
a7813a04 | 1490 | }.lower(self.tcx)); |
54a0048b | 1491 | } |
d9579d0f | 1492 | } |
c30ab7b3 SL |
1493 | Def::StructCtor(..) | Def::VariantCtor(..) | |
1494 | Def::Const(..) | Def::AssociatedConst(..) | | |
1495 | Def::Struct(..) | Def::Variant(..) | | |
1496 | Def::TyAlias(..) | Def::AssociatedTy(..) | | |
1497 | Def::SelfTy(..) => { | |
d9579d0f AL |
1498 | paths_to_process.push((id, p.clone(), Some(ref_kind))) |
1499 | } | |
3157f602 XL |
1500 | def => error!("unexpected definition kind when processing collected paths: {:?}", |
1501 | def), | |
d9579d0f AL |
1502 | } |
1503 | } | |
c1a9b12d | 1504 | |
d9579d0f | 1505 | for &(id, ref path, ref_kind) in &paths_to_process { |
c1a9b12d | 1506 | self.process_path(id, path, ref_kind); |
d9579d0f | 1507 | } |
b039eaaf | 1508 | walk_list!(self, visit_expr, &arm.guard); |
c1a9b12d | 1509 | self.visit_expr(&arm.body); |
d9579d0f AL |
1510 | } |
1511 | ||
1512 | fn visit_stmt(&mut self, s: &ast::Stmt) { | |
3157f602 | 1513 | self.process_macro_use(s.span, s.id); |
d9579d0f AL |
1514 | visit::walk_stmt(self, s) |
1515 | } | |
1516 | ||
1517 | fn visit_local(&mut self, l: &ast::Local) { | |
7453a54e | 1518 | self.process_macro_use(l.span, l.id); |
a7813a04 | 1519 | let value = l.init.as_ref().map(|i| self.span.snippet(i.span)).unwrap_or(String::new()); |
b039eaaf | 1520 | self.process_var_decl(&l.pat, value); |
d9579d0f AL |
1521 | |
1522 | // Just walk the initialiser and type (don't want to walk the pattern again). | |
b039eaaf SL |
1523 | walk_list!(self, visit_ty, &l.ty); |
1524 | walk_list!(self, visit_expr, &l.init); | |
d9579d0f AL |
1525 | } |
1526 | } |