1 // Copyright 2012-2015 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.
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.
11 use hir::def_id::{CrateNum, DefId, DefIndex};
12 use ty::{self, Ty, TyCtxt};
13 use ty::maps::queries;
14 use ty::subst::Substs;
17 use syntax_pos::symbol::InternedString;
19 /// Query configuration and description traits.
21 pub trait QueryConfig {
22 type Key: Eq + Hash + Clone;
26 pub(super) trait QueryDescription: QueryConfig {
27 fn describe(tcx: TyCtxt, key: Self::Key) -> String;
30 impl<M: QueryConfig<Key=DefId>> QueryDescription for M {
31 default fn describe(tcx: TyCtxt, def_id: DefId) -> String {
32 if !tcx.sess.verbose() {
33 format!("processing `{}`", tcx.item_path_str(def_id))
35 let name = unsafe { ::std::intrinsics::type_name::<M>() };
36 format!("processing `{}` applied to `{:?}`", name, def_id)
41 impl<'tcx> QueryDescription for queries::is_copy_raw<'tcx> {
42 fn describe(_tcx: TyCtxt, env: ty::ParamEnvAnd<'tcx, Ty<'tcx>>) -> String {
43 format!("computing whether `{}` is `Copy`", env.value)
47 impl<'tcx> QueryDescription for queries::is_sized_raw<'tcx> {
48 fn describe(_tcx: TyCtxt, env: ty::ParamEnvAnd<'tcx, Ty<'tcx>>) -> String {
49 format!("computing whether `{}` is `Sized`", env.value)
53 impl<'tcx> QueryDescription for queries::is_freeze_raw<'tcx> {
54 fn describe(_tcx: TyCtxt, env: ty::ParamEnvAnd<'tcx, Ty<'tcx>>) -> String {
55 format!("computing whether `{}` is freeze", env.value)
59 impl<'tcx> QueryDescription for queries::needs_drop_raw<'tcx> {
60 fn describe(_tcx: TyCtxt, env: ty::ParamEnvAnd<'tcx, Ty<'tcx>>) -> String {
61 format!("computing whether `{}` needs drop", env.value)
65 impl<'tcx> QueryDescription for queries::layout_raw<'tcx> {
66 fn describe(_tcx: TyCtxt, env: ty::ParamEnvAnd<'tcx, Ty<'tcx>>) -> String {
67 format!("computing layout of `{}`", env.value)
71 impl<'tcx> QueryDescription for queries::super_predicates_of<'tcx> {
72 fn describe(tcx: TyCtxt, def_id: DefId) -> String {
73 format!("computing the supertraits of `{}`",
74 tcx.item_path_str(def_id))
78 impl<'tcx> QueryDescription for queries::erase_regions_ty<'tcx> {
79 fn describe(_tcx: TyCtxt, ty: Ty<'tcx>) -> String {
80 format!("erasing regions from `{:?}`", ty)
84 impl<'tcx> QueryDescription for queries::type_param_predicates<'tcx> {
85 fn describe(tcx: TyCtxt, (_, def_id): (DefId, DefId)) -> String {
86 let id = tcx.hir.as_local_node_id(def_id).unwrap();
87 format!("computing the bounds for type parameter `{}`",
88 tcx.hir.ty_param_name(id))
92 impl<'tcx> QueryDescription for queries::coherent_trait<'tcx> {
93 fn describe(tcx: TyCtxt, (_, def_id): (CrateNum, DefId)) -> String {
94 format!("coherence checking all impls of trait `{}`",
95 tcx.item_path_str(def_id))
99 impl<'tcx> QueryDescription for queries::crate_inherent_impls<'tcx> {
100 fn describe(_: TyCtxt, k: CrateNum) -> String {
101 format!("all inherent impls defined in crate `{:?}`", k)
105 impl<'tcx> QueryDescription for queries::crate_inherent_impls_overlap_check<'tcx> {
106 fn describe(_: TyCtxt, _: CrateNum) -> String {
107 format!("check for overlap between inherent impls defined in this crate")
111 impl<'tcx> QueryDescription for queries::crate_variances<'tcx> {
112 fn describe(_tcx: TyCtxt, _: CrateNum) -> String {
113 format!("computing the variances for items in this crate")
117 impl<'tcx> QueryDescription for queries::mir_shims<'tcx> {
118 fn describe(tcx: TyCtxt, def: ty::InstanceDef<'tcx>) -> String {
119 format!("generating MIR shim for `{}`",
120 tcx.item_path_str(def.def_id()))
124 impl<'tcx> QueryDescription for queries::privacy_access_levels<'tcx> {
125 fn describe(_: TyCtxt, _: CrateNum) -> String {
126 format!("privacy access levels")
130 impl<'tcx> QueryDescription for queries::typeck_item_bodies<'tcx> {
131 fn describe(_: TyCtxt, _: CrateNum) -> String {
132 format!("type-checking all item bodies")
136 impl<'tcx> QueryDescription for queries::reachable_set<'tcx> {
137 fn describe(_: TyCtxt, _: CrateNum) -> String {
138 format!("reachability")
142 impl<'tcx> QueryDescription for queries::const_eval<'tcx> {
143 fn describe(tcx: TyCtxt, key: ty::ParamEnvAnd<'tcx, (DefId, &'tcx Substs<'tcx>)>) -> String {
144 format!("const-evaluating `{}`", tcx.item_path_str(key.value.0))
148 impl<'tcx> QueryDescription for queries::mir_keys<'tcx> {
149 fn describe(_: TyCtxt, _: CrateNum) -> String {
150 format!("getting a list of all mir_keys")
154 impl<'tcx> QueryDescription for queries::symbol_name<'tcx> {
155 fn describe(_tcx: TyCtxt, instance: ty::Instance<'tcx>) -> String {
156 format!("computing the symbol for `{}`", instance)
160 impl<'tcx> QueryDescription for queries::describe_def<'tcx> {
161 fn describe(_: TyCtxt, _: DefId) -> String {
166 impl<'tcx> QueryDescription for queries::def_span<'tcx> {
167 fn describe(_: TyCtxt, _: DefId) -> String {
173 impl<'tcx> QueryDescription for queries::lookup_stability<'tcx> {
174 fn describe(_: TyCtxt, _: DefId) -> String {
179 impl<'tcx> QueryDescription for queries::lookup_deprecation_entry<'tcx> {
180 fn describe(_: TyCtxt, _: DefId) -> String {
185 impl<'tcx> QueryDescription for queries::item_attrs<'tcx> {
186 fn describe(_: TyCtxt, _: DefId) -> String {
191 impl<'tcx> QueryDescription for queries::is_exported_symbol<'tcx> {
192 fn describe(_: TyCtxt, _: DefId) -> String {
193 bug!("is_exported_symbol")
197 impl<'tcx> QueryDescription for queries::fn_arg_names<'tcx> {
198 fn describe(_: TyCtxt, _: DefId) -> String {
203 impl<'tcx> QueryDescription for queries::impl_parent<'tcx> {
204 fn describe(_: TyCtxt, _: DefId) -> String {
209 impl<'tcx> QueryDescription for queries::trait_of_item<'tcx> {
210 fn describe(_: TyCtxt, _: DefId) -> String {
211 bug!("trait_of_item")
215 impl<'tcx> QueryDescription for queries::item_body_nested_bodies<'tcx> {
216 fn describe(tcx: TyCtxt, def_id: DefId) -> String {
217 format!("nested item bodies of `{}`", tcx.item_path_str(def_id))
221 impl<'tcx> QueryDescription for queries::const_is_rvalue_promotable_to_static<'tcx> {
222 fn describe(tcx: TyCtxt, def_id: DefId) -> String {
223 format!("const checking if rvalue is promotable to static `{}`",
224 tcx.item_path_str(def_id))
228 impl<'tcx> QueryDescription for queries::rvalue_promotable_map<'tcx> {
229 fn describe(tcx: TyCtxt, def_id: DefId) -> String {
230 format!("checking which parts of `{}` are promotable to static",
231 tcx.item_path_str(def_id))
235 impl<'tcx> QueryDescription for queries::is_mir_available<'tcx> {
236 fn describe(tcx: TyCtxt, def_id: DefId) -> String {
237 format!("checking if item is mir available: `{}`",
238 tcx.item_path_str(def_id))
242 impl<'tcx> QueryDescription for queries::trans_fulfill_obligation<'tcx> {
243 fn describe(tcx: TyCtxt, key: (ty::ParamEnv<'tcx>, ty::PolyTraitRef<'tcx>)) -> String {
244 format!("checking if `{}` fulfills its obligations", tcx.item_path_str(key.1.def_id()))
248 impl<'tcx> QueryDescription for queries::trait_impls_of<'tcx> {
249 fn describe(tcx: TyCtxt, def_id: DefId) -> String {
250 format!("trait impls of `{}`", tcx.item_path_str(def_id))
254 impl<'tcx> QueryDescription for queries::is_object_safe<'tcx> {
255 fn describe(tcx: TyCtxt, def_id: DefId) -> String {
256 format!("determine object safety of trait `{}`", tcx.item_path_str(def_id))
260 impl<'tcx> QueryDescription for queries::is_const_fn<'tcx> {
261 fn describe(tcx: TyCtxt, def_id: DefId) -> String {
262 format!("checking if item is const fn: `{}`", tcx.item_path_str(def_id))
266 impl<'tcx> QueryDescription for queries::dylib_dependency_formats<'tcx> {
267 fn describe(_: TyCtxt, _: CrateNum) -> String {
268 "dylib dependency formats of crate".to_string()
272 impl<'tcx> QueryDescription for queries::is_panic_runtime<'tcx> {
273 fn describe(_: TyCtxt, _: CrateNum) -> String {
274 "checking if the crate is_panic_runtime".to_string()
278 impl<'tcx> QueryDescription for queries::is_compiler_builtins<'tcx> {
279 fn describe(_: TyCtxt, _: CrateNum) -> String {
280 "checking if the crate is_compiler_builtins".to_string()
284 impl<'tcx> QueryDescription for queries::has_global_allocator<'tcx> {
285 fn describe(_: TyCtxt, _: CrateNum) -> String {
286 "checking if the crate has_global_allocator".to_string()
290 impl<'tcx> QueryDescription for queries::extern_crate<'tcx> {
291 fn describe(_: TyCtxt, _: DefId) -> String {
292 "getting crate's ExternCrateData".to_string()
296 impl<'tcx> QueryDescription for queries::lint_levels<'tcx> {
297 fn describe(_tcx: TyCtxt, _: CrateNum) -> String {
298 format!("computing the lint levels for items in this crate")
302 impl<'tcx> QueryDescription for queries::specializes<'tcx> {
303 fn describe(_tcx: TyCtxt, _: (DefId, DefId)) -> String {
304 format!("computing whether impls specialize one another")
308 impl<'tcx> QueryDescription for queries::in_scope_traits_map<'tcx> {
309 fn describe(_tcx: TyCtxt, _: DefIndex) -> String {
310 format!("traits in scope at a block")
314 impl<'tcx> QueryDescription for queries::is_no_builtins<'tcx> {
315 fn describe(_tcx: TyCtxt, _: CrateNum) -> String {
316 format!("test whether a crate has #![no_builtins]")
320 impl<'tcx> QueryDescription for queries::panic_strategy<'tcx> {
321 fn describe(_tcx: TyCtxt, _: CrateNum) -> String {
322 format!("query a crate's configured panic strategy")
326 impl<'tcx> QueryDescription for queries::is_profiler_runtime<'tcx> {
327 fn describe(_tcx: TyCtxt, _: CrateNum) -> String {
328 format!("query a crate is #![profiler_runtime]")
332 impl<'tcx> QueryDescription for queries::is_sanitizer_runtime<'tcx> {
333 fn describe(_tcx: TyCtxt, _: CrateNum) -> String {
334 format!("query a crate is #![sanitizer_runtime]")
338 impl<'tcx> QueryDescription for queries::exported_symbol_ids<'tcx> {
339 fn describe(_tcx: TyCtxt, _: CrateNum) -> String {
340 format!("looking up the exported symbols of a crate")
344 impl<'tcx> QueryDescription for queries::native_libraries<'tcx> {
345 fn describe(_tcx: TyCtxt, _: CrateNum) -> String {
346 format!("looking up the native libraries of a linked crate")
350 impl<'tcx> QueryDescription for queries::plugin_registrar_fn<'tcx> {
351 fn describe(_tcx: TyCtxt, _: CrateNum) -> String {
352 format!("looking up the plugin registrar for a crate")
356 impl<'tcx> QueryDescription for queries::derive_registrar_fn<'tcx> {
357 fn describe(_tcx: TyCtxt, _: CrateNum) -> String {
358 format!("looking up the derive registrar for a crate")
362 impl<'tcx> QueryDescription for queries::crate_disambiguator<'tcx> {
363 fn describe(_tcx: TyCtxt, _: CrateNum) -> String {
364 format!("looking up the disambiguator a crate")
368 impl<'tcx> QueryDescription for queries::crate_hash<'tcx> {
369 fn describe(_tcx: TyCtxt, _: CrateNum) -> String {
370 format!("looking up the hash a crate")
374 impl<'tcx> QueryDescription for queries::original_crate_name<'tcx> {
375 fn describe(_tcx: TyCtxt, _: CrateNum) -> String {
376 format!("looking up the original name a crate")
380 impl<'tcx> QueryDescription for queries::implementations_of_trait<'tcx> {
381 fn describe(_tcx: TyCtxt, _: (CrateNum, DefId)) -> String {
382 format!("looking up implementations of a trait in a crate")
386 impl<'tcx> QueryDescription for queries::all_trait_implementations<'tcx> {
387 fn describe(_tcx: TyCtxt, _: CrateNum) -> String {
388 format!("looking up all (?) trait implementations")
392 impl<'tcx> QueryDescription for queries::link_args<'tcx> {
393 fn describe(_tcx: TyCtxt, _: CrateNum) -> String {
394 format!("looking up link arguments for a crate")
398 impl<'tcx> QueryDescription for queries::named_region_map<'tcx> {
399 fn describe(_tcx: TyCtxt, _: DefIndex) -> String {
400 format!("looking up a named region")
404 impl<'tcx> QueryDescription for queries::is_late_bound_map<'tcx> {
405 fn describe(_tcx: TyCtxt, _: DefIndex) -> String {
406 format!("testing if a region is late boudn")
410 impl<'tcx> QueryDescription for queries::object_lifetime_defaults_map<'tcx> {
411 fn describe(_tcx: TyCtxt, _: DefIndex) -> String {
412 format!("looking up lifetime defaults for a region")
416 impl<'tcx> QueryDescription for queries::dep_kind<'tcx> {
417 fn describe(_tcx: TyCtxt, _: CrateNum) -> String {
418 format!("fetching what a dependency looks like")
422 impl<'tcx> QueryDescription for queries::crate_name<'tcx> {
423 fn describe(_tcx: TyCtxt, _: CrateNum) -> String {
424 format!("fetching what a crate is named")
428 impl<'tcx> QueryDescription for queries::get_lang_items<'tcx> {
429 fn describe(_tcx: TyCtxt, _: CrateNum) -> String {
430 format!("calculating the lang items map")
434 impl<'tcx> QueryDescription for queries::defined_lang_items<'tcx> {
435 fn describe(_tcx: TyCtxt, _: CrateNum) -> String {
436 format!("calculating the lang items defined in a crate")
440 impl<'tcx> QueryDescription for queries::missing_lang_items<'tcx> {
441 fn describe(_tcx: TyCtxt, _: CrateNum) -> String {
442 format!("calculating the missing lang items in a crate")
446 impl<'tcx> QueryDescription for queries::visible_parent_map<'tcx> {
447 fn describe(_tcx: TyCtxt, _: CrateNum) -> String {
448 format!("calculating the visible parent map")
452 impl<'tcx> QueryDescription for queries::missing_extern_crate_item<'tcx> {
453 fn describe(_tcx: TyCtxt, _: CrateNum) -> String {
454 format!("seeing if we're missing an `extern crate` item for this crate")
458 impl<'tcx> QueryDescription for queries::used_crate_source<'tcx> {
459 fn describe(_tcx: TyCtxt, _: CrateNum) -> String {
460 format!("looking at the source for a crate")
464 impl<'tcx> QueryDescription for queries::postorder_cnums<'tcx> {
465 fn describe(_tcx: TyCtxt, _: CrateNum) -> String {
466 format!("generating a postorder list of CrateNums")
470 impl<'tcx> QueryDescription for queries::maybe_unused_extern_crates<'tcx> {
471 fn describe(_tcx: TyCtxt, _: CrateNum) -> String {
472 format!("looking up all possibly unused extern crates")
476 impl<'tcx> QueryDescription for queries::stability_index<'tcx> {
477 fn describe(_tcx: TyCtxt, _: CrateNum) -> String {
478 format!("calculating the stability index for the local crate")
482 impl<'tcx> QueryDescription for queries::all_crate_nums<'tcx> {
483 fn describe(_tcx: TyCtxt, _: CrateNum) -> String {
484 format!("fetching all foreign CrateNum instances")
488 impl<'tcx> QueryDescription for queries::exported_symbols<'tcx> {
489 fn describe(_tcx: TyCtxt, _: CrateNum) -> String {
490 format!("exported_symbols")
494 impl<'tcx> QueryDescription for queries::collect_and_partition_translation_items<'tcx> {
495 fn describe(_tcx: TyCtxt, _: CrateNum) -> String {
496 format!("collect_and_partition_translation_items")
500 impl<'tcx> QueryDescription for queries::codegen_unit<'tcx> {
501 fn describe(_tcx: TyCtxt, _: InternedString) -> String {
502 format!("codegen_unit")
506 impl<'tcx> QueryDescription for queries::compile_codegen_unit<'tcx> {
507 fn describe(_tcx: TyCtxt, _: InternedString) -> String {
508 format!("compile_codegen_unit")
512 impl<'tcx> QueryDescription for queries::output_filenames<'tcx> {
513 fn describe(_tcx: TyCtxt, _: CrateNum) -> String {
514 format!("output_filenames")
518 impl<'tcx> QueryDescription for queries::has_clone_closures<'tcx> {
519 fn describe(_tcx: TyCtxt, _: CrateNum) -> String {
520 format!("seeing if the crate has enabled `Clone` closures")
524 impl<'tcx> QueryDescription for queries::vtable_methods<'tcx> {
525 fn describe(tcx: TyCtxt, key: ty::PolyTraitRef<'tcx> ) -> String {
526 format!("finding all methods for trait {}", tcx.item_path_str(key.def_id()))
530 impl<'tcx> QueryDescription for queries::has_copy_closures<'tcx> {
531 fn describe(_tcx: TyCtxt, _: CrateNum) -> String {
532 format!("seeing if the crate has enabled `Copy` closures")