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472b4165
编写于
4月 01, 2018
作者:
J
John Kåre Alsaker
浏览文件
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差异文件
Querify all_traits
上级
49a2b808
变更
8
显示空白变更内容
内联
并排
Showing
8 changed file
with
40 addition
and
51 deletion
+40
-51
src/librustc/dep_graph/dep_node.rs
src/librustc/dep_graph/dep_node.rs
+1
-0
src/librustc/ty/context.rs
src/librustc/ty/context.rs
+0
-7
src/librustc/ty/maps/config.rs
src/librustc/ty/maps/config.rs
+6
-0
src/librustc/ty/maps/mod.rs
src/librustc/ty/maps/mod.rs
+9
-0
src/librustc/ty/maps/plumbing.rs
src/librustc/ty/maps/plumbing.rs
+1
-0
src/librustc_typeck/check/method/mod.rs
src/librustc_typeck/check/method/mod.rs
+5
-0
src/librustc_typeck/check/method/suggest.rs
src/librustc_typeck/check/method/suggest.rs
+17
-44
src/librustc_typeck/check/mod.rs
src/librustc_typeck/check/mod.rs
+1
-0
未找到文件。
src/librustc/dep_graph/dep_node.rs
浏览文件 @
472b4165
...
...
@@ -632,6 +632,7 @@ pub fn fingerprint_needed_for_crate_hash(self) -> bool {
[
input
]
MaybeUnusedTraitImport
(
DefId
),
[
input
]
MaybeUnusedExternCrates
,
[
eval_always
]
StabilityIndex
,
[
eval_always
]
AllTraits
,
[
input
]
AllCrateNums
,
[]
ExportedSymbols
(
CrateNum
),
[
eval_always
]
CollectAndPartitionTranslationItems
,
...
...
src/librustc/ty/context.rs
浏览文件 @
472b4165
...
...
@@ -898,12 +898,6 @@ pub struct GlobalCtxt<'tcx> {
layout_interner
:
Lock
<
FxHashSet
<&
'tcx
LayoutDetails
>>
,
/// A vector of every trait accessible in the whole crate
/// (i.e. including those from subcrates). This is used only for
/// error reporting, and so is lazily initialized and generally
/// shouldn't taint the common path (hence the RefCell).
pub
all_traits
:
RefCell
<
Option
<
Vec
<
DefId
>>>
,
/// A general purpose channel to throw data out the back towards LLVM worker
/// threads.
///
...
...
@@ -1283,7 +1277,6 @@ pub fn create_and_enter<F, R>(s: &'tcx Session,
derive_macros
:
RefCell
::
new
(
NodeMap
()),
stability_interner
:
Lock
::
new
(
FxHashSet
()),
interpret_interner
:
Default
::
default
(),
all_traits
:
RefCell
::
new
(
None
),
tx_to_llvm_workers
:
Lock
::
new
(
tx
),
output_filenames
:
Arc
::
new
(
output_filenames
.clone
()),
};
...
...
src/librustc/ty/maps/config.rs
浏览文件 @
472b4165
...
...
@@ -586,6 +586,12 @@ fn describe(_tcx: TyCtxt, _: CrateNum) -> String {
}
}
impl
<
'tcx
>
QueryDescription
<
'tcx
>
for
queries
::
all_traits
<
'tcx
>
{
fn
describe
(
_
tcx
:
TyCtxt
,
_
:
CrateNum
)
->
String
{
format!
(
"fetching all foreign and local traits"
)
}
}
impl
<
'tcx
>
QueryDescription
<
'tcx
>
for
queries
::
all_crate_nums
<
'tcx
>
{
fn
describe
(
_
tcx
:
TyCtxt
,
_
:
CrateNum
)
->
String
{
format!
(
"fetching all foreign CrateNum instances"
)
...
...
src/librustc/ty/maps/mod.rs
浏览文件 @
472b4165
...
...
@@ -386,6 +386,11 @@
[]
fn
stability_index
:
stability_index_node
(
CrateNum
)
->
Lrc
<
stability
::
Index
<
'tcx
>>
,
[]
fn
all_crate_nums
:
all_crate_nums_node
(
CrateNum
)
->
Lrc
<
Vec
<
CrateNum
>>
,
/// A vector of every trait accessible in the whole crate
/// (i.e. including those from subcrates). This is used only for
/// error reporting.
[]
fn
all_traits
:
all_traits_node
(
CrateNum
)
->
Lrc
<
Vec
<
DefId
>>
,
[]
fn
exported_symbols
:
ExportedSymbols
(
CrateNum
)
->
Arc
<
Vec
<
(
ExportedSymbol
<
'tcx
>
,
SymbolExportLevel
)
>>
,
[]
fn
collect_and_partition_translation_items
:
...
...
@@ -575,6 +580,10 @@ fn all_crate_nums_node<'tcx>(_: CrateNum) -> DepConstructor<'tcx> {
DepConstructor
::
AllCrateNums
}
fn
all_traits_node
<
'tcx
>
(
_
:
CrateNum
)
->
DepConstructor
<
'tcx
>
{
DepConstructor
::
AllTraits
}
fn
collect_and_partition_translation_items_node
<
'tcx
>
(
_
:
CrateNum
)
->
DepConstructor
<
'tcx
>
{
DepConstructor
::
CollectAndPartitionTranslationItems
}
...
...
src/librustc/ty/maps/plumbing.rs
浏览文件 @
472b4165
...
...
@@ -1115,6 +1115,7 @@ pub fn force_from_dep_node<'a, 'gcx, 'lcx>(tcx: TyCtxt<'a, 'gcx, 'lcx>,
}
DepKind
::
MaybeUnusedExternCrates
=>
{
force!
(
maybe_unused_extern_crates
,
LOCAL_CRATE
);
}
DepKind
::
StabilityIndex
=>
{
force!
(
stability_index
,
LOCAL_CRATE
);
}
DepKind
::
AllTraits
=>
{
force!
(
all_traits
,
LOCAL_CRATE
);
}
DepKind
::
AllCrateNums
=>
{
force!
(
all_crate_nums
,
LOCAL_CRATE
);
}
DepKind
::
ExportedSymbols
=>
{
force!
(
exported_symbols
,
krate!
());
}
DepKind
::
CollectAndPartitionTranslationItems
=>
{
...
...
src/librustc_typeck/check/method/mod.rs
浏览文件 @
472b4165
...
...
@@ -31,6 +31,7 @@
pub
use
self
::
MethodError
::
*
;
pub
use
self
::
CandidateSource
::
*
;
pub
use
self
::
suggest
::
TraitInfo
;
mod
confirm
;
pub
mod
probe
;
...
...
@@ -38,6 +39,10 @@
use
self
::
probe
::{
IsSuggestion
,
ProbeScope
};
pub
fn
provide
(
providers
:
&
mut
ty
::
maps
::
Providers
)
{
suggest
::
provide
(
providers
);
}
#[derive(Clone,
Copy,
Debug)]
pub
struct
MethodCallee
<
'tcx
>
{
/// Impl method ID, for inherent methods, or trait method ID, otherwise.
...
...
src/librustc_typeck/check/method/suggest.rs
浏览文件 @
472b4165
...
...
@@ -13,6 +13,7 @@
use
check
::
FnCtxt
;
use
rustc
::
hir
::
map
as
hir_map
;
use
rustc_data_structures
::
sync
::
Lrc
;
use
rustc
::
ty
::{
self
,
Ty
,
TyCtxt
,
ToPolyTraitRef
,
ToPredicate
,
TypeFoldable
};
use
hir
::
def
::
Def
;
use
hir
::
def_id
::{
CRATE_DEF_INDEX
,
DefId
};
...
...
@@ -26,12 +27,12 @@
use
errors
::
DiagnosticBuilder
;
use
syntax_pos
::
Span
;
use
rustc
::
hir
::
def_id
::
LOCAL_CRATE
;
use
rustc
::
hir
;
use
rustc
::
hir
::
print
;
use
rustc
::
infer
::
type_variable
::
TypeVariableOrigin
;
use
rustc
::
ty
::
TyAdt
;
use
std
::
cell
;
use
std
::
cmp
::
Ordering
;
use
super
::{
MethodError
,
NoMatchData
,
CandidateSource
};
...
...
@@ -208,6 +209,7 @@ pub fn report_method_error(&self,
// be used exists at all, and the type is an ambiuous numeric type
// ({integer}/{float}).
let
mut
candidates
=
all_traits
(
self
.tcx
)
.into_iter
()
.filter
(|
info
|
{
self
.associated_item
(
info
.def_id
,
item_name
,
Namespace
::
Value
)
.is_some
()
});
...
...
@@ -519,6 +521,7 @@ fn suggest_traits_to_import(&self,
// implement, by finding ones that have the item name, and are
// legal to implement.
let
mut
candidates
=
all_traits
(
self
.tcx
)
.into_iter
()
.filter
(|
info
|
{
// we approximate the coherence rules to only suggest
// traits that are legal to implement by requiring that
...
...
@@ -603,18 +606,11 @@ fn is_local(ty: Ty) -> bool {
}
}
pub
type
AllTraitsVec
=
Vec
<
DefId
>
;
#[derive(Copy,
Clone)]
pub
struct
TraitInfo
{
pub
def_id
:
DefId
,
}
impl
TraitInfo
{
fn
new
(
def_id
:
DefId
)
->
TraitInfo
{
TraitInfo
{
def_id
:
def_id
}
}
}
impl
PartialEq
for
TraitInfo
{
fn
eq
(
&
self
,
other
:
&
TraitInfo
)
->
bool
{
self
.cmp
(
other
)
==
Ordering
::
Equal
...
...
@@ -638,8 +634,12 @@ fn cmp(&self, other: &TraitInfo) -> Ordering {
}
/// Retrieve all traits in this crate and any dependent crates.
pub
fn
all_traits
<
'a
,
'gcx
,
'tcx
>
(
tcx
:
TyCtxt
<
'a
,
'gcx
,
'tcx
>
)
->
AllTraits
<
'a
>
{
if
tcx
.all_traits
.borrow
()
.is_none
()
{
pub
fn
all_traits
<
'a
,
'gcx
,
'tcx
>
(
tcx
:
TyCtxt
<
'a
,
'gcx
,
'tcx
>
)
->
Vec
<
TraitInfo
>
{
tcx
.all_traits
(
LOCAL_CRATE
)
.iter
()
.map
(|
&
def_id
|
TraitInfo
{
def_id
})
.collect
()
}
/// Compute all traits in this crate and any dependent crates.
fn
compute_all_traits
<
'a
,
'gcx
,
'tcx
>
(
tcx
:
TyCtxt
<
'a
,
'gcx
,
'tcx
>
)
->
Vec
<
DefId
>
{
use
rustc
::
hir
::
itemlikevisit
;
let
mut
traits
=
vec!
[];
...
...
@@ -649,7 +649,7 @@ pub fn all_traits<'a, 'gcx, 'tcx>(tcx: TyCtxt<'a, 'gcx, 'tcx>) -> AllTraits<'a>
// meh.
struct
Visitor
<
'a
,
'tcx
:
'a
>
{
map
:
&
'a
hir_map
::
Map
<
'tcx
>
,
traits
:
&
'a
mut
AllTraitsVec
,
traits
:
&
'a
mut
Vec
<
DefId
>
,
}
impl
<
'v
,
'a
,
'tcx
>
itemlikevisit
::
ItemLikeVisitor
<
'v
>
for
Visitor
<
'a
,
'tcx
>
{
fn
visit_item
(
&
mut
self
,
i
:
&
'v
hir
::
Item
)
{
...
...
@@ -676,7 +676,7 @@ fn visit_impl_item(&mut self, _impl_item: &hir::ImplItem) {
// Cross-crate:
let
mut
external_mods
=
FxHashSet
();
fn
handle_external_def
(
tcx
:
TyCtxt
,
traits
:
&
mut
AllTraitsVec
,
traits
:
&
mut
Vec
<
DefId
>
,
external_mods
:
&
mut
FxHashSet
<
DefId
>
,
def
:
Def
)
{
let
def_id
=
def
.def_id
();
...
...
@@ -703,43 +703,16 @@ fn handle_external_def(tcx: TyCtxt,
handle_external_def
(
tcx
,
&
mut
traits
,
&
mut
external_mods
,
Def
::
Mod
(
def_id
));
}
*
tcx
.all_traits
.borrow_mut
()
=
Some
(
traits
);
}
let
borrow
=
tcx
.all_traits
.borrow
();
assert
!
(
borrow
.is_some
());
AllTraits
{
borrow
,
idx
:
0
,
}
}
pub
struct
AllTraits
<
'a
>
{
borrow
:
cell
::
Ref
<
'a
,
Option
<
AllTraitsVec
>>
,
idx
:
usize
,
traits
}
impl
<
'a
>
Iterator
for
AllTraits
<
'a
>
{
type
Item
=
TraitInfo
;
fn
next
(
&
mut
self
)
->
Option
<
TraitInfo
>
{
let
AllTraits
{
ref
borrow
,
ref
mut
idx
}
=
*
self
;
// ugh.
borrow
.as_ref
()
.unwrap
()
.get
(
*
idx
)
.map
(|
info
|
{
*
idx
+=
1
;
TraitInfo
::
new
(
*
info
)
})
}
fn
size_hint
(
&
self
)
->
(
usize
,
Option
<
usize
>
)
{
let
len
=
self
.borrow
.as_ref
()
.unwrap
()
.len
()
-
self
.idx
;
(
len
,
Some
(
len
))
pub
fn
provide
(
providers
:
&
mut
ty
::
maps
::
Providers
)
{
providers
.all_traits
=
|
tcx
,
cnum
|
{
assert_eq!
(
cnum
,
LOCAL_CRATE
);
Lrc
::
new
(
compute_all_traits
(
tcx
))
}
}
impl
<
'a
>
ExactSizeIterator
for
AllTraits
<
'a
>
{}
struct
UsePlacementFinder
<
'a
,
'tcx
:
'a
,
'gcx
:
'tcx
>
{
target_module
:
ast
::
NodeId
,
span
:
Option
<
Span
>
,
...
...
src/librustc_typeck/check/mod.rs
浏览文件 @
472b4165
...
...
@@ -730,6 +730,7 @@ fn check_impl_item_well_formed<'a, 'tcx>(tcx: TyCtxt<'a, 'tcx, 'tcx>, def_id: De
}
pub
fn
provide
(
providers
:
&
mut
Providers
)
{
method
::
provide
(
providers
);
*
providers
=
Providers
{
typeck_item_bodies
,
typeck_tables_of
,
...
...
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