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-rw-r--r--crates/ra_hir/src/code_model_api.rs65
-rw-r--r--crates/ra_hir/src/db.rs9
-rw-r--r--crates/ra_hir/src/expr.rs47
-rw-r--r--crates/ra_hir/src/expr/scope.rs19
-rw-r--r--crates/ra_hir/src/lib.rs1
-rw-r--r--crates/ra_hir/src/source_binder.rs44
-rw-r--r--crates/ra_hir/src/ty/infer.rs20
-rw-r--r--crates/ra_hir/src/ty/tests.rs61
8 files changed, 219 insertions, 47 deletions
diff --git a/crates/ra_hir/src/code_model_api.rs b/crates/ra_hir/src/code_model_api.rs
index 87d81f4a4..9e6170440 100644
--- a/crates/ra_hir/src/code_model_api.rs
+++ b/crates/ra_hir/src/code_model_api.rs
@@ -429,6 +429,45 @@ impl Docs for EnumVariant {
429 } 429 }
430} 430}
431 431
432/// The defs which have a body.
433#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)]
434pub enum DefWithBody {
435 Function(Function),
436 Const(Const),
437 Static(Static),
438}
439
440impl_froms!(DefWithBody: Function, Const, Static);
441
442impl DefWithBody {
443 pub fn infer(&self, db: &impl HirDatabase) -> Arc<InferenceResult> {
444 db.infer(*self)
445 }
446
447 pub fn body_source_map(&self, db: &impl HirDatabase) -> Arc<BodySourceMap> {
448 db.body_with_source_map(*self).1
449 }
450
451 pub fn body(&self, db: &impl HirDatabase) -> Arc<Body> {
452 db.body_hir(*self)
453 }
454
455 /// Builds a resolver for code inside this item.
456 pub fn resolver(&self, db: &impl HirDatabase) -> Resolver {
457 match *self {
458 DefWithBody::Const(ref c) => c.resolver(db),
459 DefWithBody::Function(ref f) => f.resolver(db),
460 DefWithBody::Static(ref s) => s.resolver(db),
461 }
462 }
463
464 pub fn scopes(&self, db: &impl HirDatabase) -> ScopesWithSourceMap {
465 let scopes = db.expr_scopes(*self);
466 let source_map = db.body_with_source_map(*self).1;
467 ScopesWithSourceMap { scopes, source_map }
468 }
469}
470
432#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)] 471#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)]
433pub struct Function { 472pub struct Function {
434 pub(crate) id: FunctionId, 473 pub(crate) id: FunctionId,
@@ -479,11 +518,11 @@ impl Function {
479 } 518 }
480 519
481 pub fn body_source_map(&self, db: &impl HirDatabase) -> Arc<BodySourceMap> { 520 pub fn body_source_map(&self, db: &impl HirDatabase) -> Arc<BodySourceMap> {
482 db.body_with_source_map(*self).1 521 db.body_with_source_map((*self).into()).1
483 } 522 }
484 523
485 pub fn body(&self, db: &impl HirDatabase) -> Arc<Body> { 524 pub fn body(&self, db: &impl HirDatabase) -> Arc<Body> {
486 db.body_hir(*self) 525 db.body_hir((*self).into())
487 } 526 }
488 527
489 pub fn ty(&self, db: &impl HirDatabase) -> Ty { 528 pub fn ty(&self, db: &impl HirDatabase) -> Ty {
@@ -491,8 +530,8 @@ impl Function {
491 } 530 }
492 531
493 pub fn scopes(&self, db: &impl HirDatabase) -> ScopesWithSourceMap { 532 pub fn scopes(&self, db: &impl HirDatabase) -> ScopesWithSourceMap {
494 let scopes = db.expr_scopes(*self); 533 let scopes = db.expr_scopes((*self).into());
495 let source_map = db.body_with_source_map(*self).1; 534 let source_map = db.body_with_source_map((*self).into()).1;
496 ScopesWithSourceMap { scopes, source_map } 535 ScopesWithSourceMap { scopes, source_map }
497 } 536 }
498 537
@@ -501,7 +540,7 @@ impl Function {
501 } 540 }
502 541
503 pub fn infer(&self, db: &impl HirDatabase) -> Arc<InferenceResult> { 542 pub fn infer(&self, db: &impl HirDatabase) -> Arc<InferenceResult> {
504 db.infer(*self) 543 db.infer((*self).into())
505 } 544 }
506 545
507 pub fn generic_params(&self, db: &impl DefDatabase) -> Arc<GenericParams> { 546 pub fn generic_params(&self, db: &impl DefDatabase) -> Arc<GenericParams> {
@@ -557,6 +596,14 @@ impl Const {
557 db.const_signature(*self) 596 db.const_signature(*self)
558 } 597 }
559 598
599 pub fn infer(&self, db: &impl HirDatabase) -> Arc<InferenceResult> {
600 db.infer((*self).into())
601 }
602
603 pub fn body_source_map(&self, db: &impl HirDatabase) -> Arc<BodySourceMap> {
604 db.body_with_source_map((*self).into()).1
605 }
606
560 /// The containing impl block, if this is a method. 607 /// The containing impl block, if this is a method.
561 pub fn impl_block(&self, db: &impl DefDatabase) -> Option<ImplBlock> { 608 pub fn impl_block(&self, db: &impl DefDatabase) -> Option<ImplBlock> {
562 let module_impls = db.impls_in_module(self.module(db)); 609 let module_impls = db.impls_in_module(self.module(db));
@@ -621,6 +668,14 @@ impl Static {
621 // take the outer scope... 668 // take the outer scope...
622 self.module(db).resolver(db) 669 self.module(db).resolver(db)
623 } 670 }
671
672 pub fn infer(&self, db: &impl HirDatabase) -> Arc<InferenceResult> {
673 db.infer((*self).into())
674 }
675
676 pub fn body_source_map(&self, db: &impl HirDatabase) -> Arc<BodySourceMap> {
677 db.body_with_source_map((*self).into()).1
678 }
624} 679}
625 680
626impl Docs for Static { 681impl Docs for Static {
diff --git a/crates/ra_hir/src/db.rs b/crates/ra_hir/src/db.rs
index 147005848..be8a8c98b 100644
--- a/crates/ra_hir/src/db.rs
+++ b/crates/ra_hir/src/db.rs
@@ -8,6 +8,7 @@ use crate::{
8 Function, FnSignature, ExprScopes, TypeAlias, 8 Function, FnSignature, ExprScopes, TypeAlias,
9 Struct, Enum, StructField, 9 Struct, Enum, StructField,
10 Const, ConstSignature, Static, 10 Const, ConstSignature, Static,
11 DefWithBody,
11 nameres::{Namespace, ImportSourceMap, RawItems, CrateDefMap}, 12 nameres::{Namespace, ImportSourceMap, RawItems, CrateDefMap},
12 ty::{InferenceResult, Ty, method_resolution::CrateImplBlocks, TypableDef, CallableDef, FnSig}, 13 ty::{InferenceResult, Ty, method_resolution::CrateImplBlocks, TypableDef, CallableDef, FnSig},
13 adt::{StructData, EnumData}, 14 adt::{StructData, EnumData},
@@ -83,10 +84,10 @@ pub trait DefDatabase: SourceDatabase + AsRef<HirInterner> {
83#[salsa::query_group(HirDatabaseStorage)] 84#[salsa::query_group(HirDatabaseStorage)]
84pub trait HirDatabase: DefDatabase { 85pub trait HirDatabase: DefDatabase {
85 #[salsa::invoke(ExprScopes::expr_scopes_query)] 86 #[salsa::invoke(ExprScopes::expr_scopes_query)]
86 fn expr_scopes(&self, func: Function) -> Arc<ExprScopes>; 87 fn expr_scopes(&self, def: DefWithBody) -> Arc<ExprScopes>;
87 88
88 #[salsa::invoke(crate::ty::infer)] 89 #[salsa::invoke(crate::ty::infer)]
89 fn infer(&self, func: Function) -> Arc<InferenceResult>; 90 fn infer(&self, def: DefWithBody) -> Arc<InferenceResult>;
90 91
91 #[salsa::invoke(crate::ty::type_for_def)] 92 #[salsa::invoke(crate::ty::type_for_def)]
92 fn type_for_def(&self, def: TypableDef, ns: Namespace) -> Ty; 93 fn type_for_def(&self, def: TypableDef, ns: Namespace) -> Ty;
@@ -100,11 +101,11 @@ pub trait HirDatabase: DefDatabase {
100 #[salsa::invoke(crate::expr::body_with_source_map_query)] 101 #[salsa::invoke(crate::expr::body_with_source_map_query)]
101 fn body_with_source_map( 102 fn body_with_source_map(
102 &self, 103 &self,
103 func: Function, 104 def: DefWithBody,
104 ) -> (Arc<crate::expr::Body>, Arc<crate::expr::BodySourceMap>); 105 ) -> (Arc<crate::expr::Body>, Arc<crate::expr::BodySourceMap>);
105 106
106 #[salsa::invoke(crate::expr::body_hir_query)] 107 #[salsa::invoke(crate::expr::body_hir_query)]
107 fn body_hir(&self, func: Function) -> Arc<crate::expr::Body>; 108 fn body_hir(&self, def: DefWithBody) -> Arc<crate::expr::Body>;
108 109
109 #[salsa::invoke(crate::ty::method_resolution::CrateImplBlocks::impls_in_crate_query)] 110 #[salsa::invoke(crate::ty::method_resolution::CrateImplBlocks::impls_in_crate_query)]
110 fn impls_in_crate(&self, krate: Crate) -> Arc<CrateImplBlocks>; 111 fn impls_in_crate(&self, krate: Crate) -> Arc<CrateImplBlocks>;
diff --git a/crates/ra_hir/src/expr.rs b/crates/ra_hir/src/expr.rs
index 45012827f..b2a237ece 100644
--- a/crates/ra_hir/src/expr.rs
+++ b/crates/ra_hir/src/expr.rs
@@ -10,7 +10,7 @@ use ra_syntax::{
10}; 10};
11 11
12use crate::{ 12use crate::{
13 Path, Name, HirDatabase, Function, Resolver, 13 Path, Name, HirDatabase, Resolver,DefWithBody,
14 name::AsName, 14 name::AsName,
15 type_ref::{Mutability, TypeRef}, 15 type_ref::{Mutability, TypeRef},
16}; 16};
@@ -27,9 +27,8 @@ impl_arena_id!(ExprId);
27/// The body of an item (function, const etc.). 27/// The body of an item (function, const etc.).
28#[derive(Debug, Eq, PartialEq)] 28#[derive(Debug, Eq, PartialEq)]
29pub struct Body { 29pub struct Body {
30 // FIXME: this should be more general, consts & statics also have bodies 30 /// The def of the item this body belongs to
31 /// The Function of the item this body belongs to 31 owner: DefWithBody,
32 owner: Function,
33 exprs: Arena<ExprId, Expr>, 32 exprs: Arena<ExprId, Expr>,
34 pats: Arena<PatId, Pat>, 33 pats: Arena<PatId, Pat>,
35 /// The patterns for the function's parameters. While the parameter types are 34 /// The patterns for the function's parameters. While the parameter types are
@@ -66,7 +65,7 @@ impl Body {
66 self.body_expr 65 self.body_expr
67 } 66 }
68 67
69 pub fn owner(&self) -> Function { 68 pub fn owner(&self) -> DefWithBody {
70 self.owner 69 self.owner
71 } 70 }
72 71
@@ -463,8 +462,8 @@ impl Pat {
463 462
464// Queries 463// Queries
465 464
466struct ExprCollector { 465pub(crate) struct ExprCollector {
467 owner: Function, 466 owner: DefWithBody,
468 exprs: Arena<ExprId, Expr>, 467 exprs: Arena<ExprId, Expr>,
469 pats: Arena<PatId, Pat>, 468 pats: Arena<PatId, Pat>,
470 source_map: BodySourceMap, 469 source_map: BodySourceMap,
@@ -473,7 +472,7 @@ struct ExprCollector {
473} 472}
474 473
475impl ExprCollector { 474impl ExprCollector {
476 fn new(owner: Function) -> Self { 475 fn new(owner: DefWithBody) -> Self {
477 ExprCollector { 476 ExprCollector {
478 owner, 477 owner,
479 exprs: Arena::default(), 478 exprs: Arena::default(),
@@ -866,6 +865,16 @@ impl ExprCollector {
866 } 865 }
867 } 866 }
868 867
868 fn collect_const_body(&mut self, node: &ast::ConstDef) {
869 let body = self.collect_expr_opt(node.body());
870 self.body_expr = Some(body);
871 }
872
873 fn collect_static_body(&mut self, node: &ast::StaticDef) {
874 let body = self.collect_expr_opt(node.body());
875 self.body_expr = Some(body);
876 }
877
869 fn collect_fn_body(&mut self, node: &ast::FnDef) { 878 fn collect_fn_body(&mut self, node: &ast::FnDef) {
870 if let Some(param_list) = node.param_list() { 879 if let Some(param_list) = node.param_list() {
871 if let Some(self_param) = param_list.self_param() { 880 if let Some(self_param) = param_list.self_param() {
@@ -910,24 +919,20 @@ impl ExprCollector {
910 919
911pub(crate) fn body_with_source_map_query( 920pub(crate) fn body_with_source_map_query(
912 db: &impl HirDatabase, 921 db: &impl HirDatabase,
913 func: Function, 922 def: DefWithBody,
914) -> (Arc<Body>, Arc<BodySourceMap>) { 923) -> (Arc<Body>, Arc<BodySourceMap>) {
915 let mut collector = ExprCollector::new(func); 924 let mut collector = ExprCollector::new(def);
916 925
917 // FIXME: consts, etc. 926 match def {
918 collector.collect_fn_body(&func.source(db).1); 927 DefWithBody::Const(ref c) => collector.collect_const_body(&c.source(db).1),
928 DefWithBody::Function(ref f) => collector.collect_fn_body(&f.source(db).1),
929 DefWithBody::Static(ref s) => collector.collect_static_body(&s.source(db).1),
930 }
919 931
920 let (body, source_map) = collector.finish(); 932 let (body, source_map) = collector.finish();
921 (Arc::new(body), Arc::new(source_map)) 933 (Arc::new(body), Arc::new(source_map))
922} 934}
923 935
924pub(crate) fn body_hir_query(db: &impl HirDatabase, func: Function) -> Arc<Body> { 936pub(crate) fn body_hir_query(db: &impl HirDatabase, def: DefWithBody) -> Arc<Body> {
925 db.body_with_source_map(func).0 937 db.body_with_source_map(def).0
926}
927
928#[cfg(test)]
929fn collect_fn_body_syntax(function: Function, node: &ast::FnDef) -> (Body, BodySourceMap) {
930 let mut collector = ExprCollector::new(function);
931 collector.collect_fn_body(node);
932 collector.finish()
933} 938}
diff --git a/crates/ra_hir/src/expr/scope.rs b/crates/ra_hir/src/expr/scope.rs
index ed005c9f7..48283907b 100644
--- a/crates/ra_hir/src/expr/scope.rs
+++ b/crates/ra_hir/src/expr/scope.rs
@@ -10,7 +10,7 @@ use ra_syntax::{
10use ra_arena::{Arena, RawId, impl_arena_id}; 10use ra_arena::{Arena, RawId, impl_arena_id};
11 11
12use crate::{ 12use crate::{
13 Name, AsName, Function, 13 Name, AsName,DefWithBody,
14 expr::{PatId, ExprId, Pat, Expr, Body, Statement, BodySourceMap}, 14 expr::{PatId, ExprId, Pat, Expr, Body, Statement, BodySourceMap},
15 HirDatabase, 15 HirDatabase,
16}; 16};
@@ -40,8 +40,8 @@ pub struct ScopeData {
40 40
41impl ExprScopes { 41impl ExprScopes {
42 // FIXME: This should take something more general than Function 42 // FIXME: This should take something more general than Function
43 pub(crate) fn expr_scopes_query(db: &impl HirDatabase, function: Function) -> Arc<ExprScopes> { 43 pub(crate) fn expr_scopes_query(db: &impl HirDatabase, def: DefWithBody) -> Arc<ExprScopes> {
44 let body = db.body_hir(function); 44 let body = db.body_hir(def);
45 let res = ExprScopes::new(body); 45 let res = ExprScopes::new(body);
46 Arc::new(res) 46 Arc::new(res)
47 } 47 }
@@ -297,8 +297,9 @@ mod tests {
297 use ra_syntax::{SourceFile, algo::find_node_at_offset}; 297 use ra_syntax::{SourceFile, algo::find_node_at_offset};
298 use test_utils::{extract_offset, assert_eq_text}; 298 use test_utils::{extract_offset, assert_eq_text};
299 use ra_arena::ArenaId; 299 use ra_arena::ArenaId;
300 use crate::Function;
300 301
301 use crate::expr; 302 use crate::expr::{ExprCollector};
302 303
303 use super::*; 304 use super::*;
304 305
@@ -316,7 +317,7 @@ mod tests {
316 let marker: &ast::PathExpr = find_node_at_offset(file.syntax(), off).unwrap(); 317 let marker: &ast::PathExpr = find_node_at_offset(file.syntax(), off).unwrap();
317 let fn_def: &ast::FnDef = find_node_at_offset(file.syntax(), off).unwrap(); 318 let fn_def: &ast::FnDef = find_node_at_offset(file.syntax(), off).unwrap();
318 let irrelevant_function = Function { id: crate::ids::FunctionId::from_raw(0.into()) }; 319 let irrelevant_function = Function { id: crate::ids::FunctionId::from_raw(0.into()) };
319 let (body, source_map) = expr::collect_fn_body_syntax(irrelevant_function, fn_def); 320 let (body, source_map) = collect_fn_body_syntax(irrelevant_function, fn_def);
320 let scopes = ExprScopes::new(Arc::new(body)); 321 let scopes = ExprScopes::new(Arc::new(body));
321 let scopes = 322 let scopes =
322 ScopesWithSourceMap { scopes: Arc::new(scopes), source_map: Arc::new(source_map) }; 323 ScopesWithSourceMap { scopes: Arc::new(scopes), source_map: Arc::new(source_map) };
@@ -405,6 +406,12 @@ mod tests {
405 ); 406 );
406 } 407 }
407 408
409 fn collect_fn_body_syntax(function: Function, node: &ast::FnDef) -> (Body, BodySourceMap) {
410 let mut collector = ExprCollector::new(DefWithBody::Function(function));
411 collector.collect_fn_body(node);
412 collector.finish()
413 }
414
408 fn do_check_local_name(code: &str, expected_offset: u32) { 415 fn do_check_local_name(code: &str, expected_offset: u32) {
409 let (off, code) = extract_offset(code); 416 let (off, code) = extract_offset(code);
410 let file = SourceFile::parse(&code); 417 let file = SourceFile::parse(&code);
@@ -415,7 +422,7 @@ mod tests {
415 let name_ref: &ast::NameRef = find_node_at_offset(file.syntax(), off).unwrap(); 422 let name_ref: &ast::NameRef = find_node_at_offset(file.syntax(), off).unwrap();
416 423
417 let irrelevant_function = Function { id: crate::ids::FunctionId::from_raw(0.into()) }; 424 let irrelevant_function = Function { id: crate::ids::FunctionId::from_raw(0.into()) };
418 let (body, source_map) = expr::collect_fn_body_syntax(irrelevant_function, fn_def); 425 let (body, source_map) = collect_fn_body_syntax(irrelevant_function, fn_def);
419 let scopes = ExprScopes::new(Arc::new(body)); 426 let scopes = ExprScopes::new(Arc::new(body));
420 let scopes = 427 let scopes =
421 ScopesWithSourceMap { scopes: Arc::new(scopes), source_map: Arc::new(source_map) }; 428 ScopesWithSourceMap { scopes: Arc::new(scopes), source_map: Arc::new(source_map) };
diff --git a/crates/ra_hir/src/lib.rs b/crates/ra_hir/src/lib.rs
index 643bee6cd..c19450f39 100644
--- a/crates/ra_hir/src/lib.rs
+++ b/crates/ra_hir/src/lib.rs
@@ -67,6 +67,7 @@ pub use self::{
67 67
68pub use self::code_model_api::{ 68pub use self::code_model_api::{
69 Crate, CrateDependency, 69 Crate, CrateDependency,
70 DefWithBody,
70 Module, ModuleDef, ModuleSource, 71 Module, ModuleDef, ModuleSource,
71 Struct, Enum, EnumVariant, 72 Struct, Enum, EnumVariant,
72 Function, FnSignature, 73 Function, FnSignature,
diff --git a/crates/ra_hir/src/source_binder.rs b/crates/ra_hir/src/source_binder.rs
index 54dc27399..182ed4c91 100644
--- a/crates/ra_hir/src/source_binder.rs
+++ b/crates/ra_hir/src/source_binder.rs
@@ -13,7 +13,7 @@ use ra_syntax::{
13}; 13};
14 14
15use crate::{ 15use crate::{
16 HirDatabase, Function, Struct, Enum, 16 HirDatabase, Function, Struct, Enum,Const,Static,
17 AsName, Module, HirFileId, Crate, Trait, Resolver, 17 AsName, Module, HirFileId, Crate, Trait, Resolver,
18 ids::LocationCtx, 18 ids::LocationCtx,
19 expr, AstId 19 expr, AstId
@@ -87,6 +87,27 @@ fn module_from_source(
87 ) 87 )
88} 88}
89 89
90pub fn const_from_source(
91 db: &impl HirDatabase,
92 file_id: FileId,
93 const_def: &ast::ConstDef,
94) -> Option<Const> {
95 let module = module_from_child_node(db, file_id, const_def.syntax())?;
96 let res = const_from_module(db, module, const_def);
97 Some(res)
98}
99
100pub fn const_from_module(
101 db: &impl HirDatabase,
102 module: Module,
103 const_def: &ast::ConstDef,
104) -> Const {
105 let (file_id, _) = module.definition_source(db);
106 let file_id = file_id.into();
107 let ctx = LocationCtx::new(db, module, file_id);
108 Const { id: ctx.to_def(const_def) }
109}
110
90pub fn function_from_position(db: &impl HirDatabase, position: FilePosition) -> Option<Function> { 111pub fn function_from_position(db: &impl HirDatabase, position: FilePosition) -> Option<Function> {
91 let file = db.parse(position.file_id); 112 let file = db.parse(position.file_id);
92 let fn_def = find_node_at_offset::<ast::FnDef>(file.syntax(), position.offset)?; 113 let fn_def = find_node_at_offset::<ast::FnDef>(file.syntax(), position.offset)?;
@@ -134,6 +155,27 @@ pub fn struct_from_module(
134 Struct { id: ctx.to_def(struct_def) } 155 Struct { id: ctx.to_def(struct_def) }
135} 156}
136 157
158pub fn static_from_source(
159 db: &impl HirDatabase,
160 file_id: FileId,
161 static_def: &ast::StaticDef,
162) -> Option<Static> {
163 let module = module_from_child_node(db, file_id, static_def.syntax())?;
164 let res = static_from_module(db, module, static_def);
165 Some(res)
166}
167
168pub fn static_from_module(
169 db: &impl HirDatabase,
170 module: Module,
171 static_def: &ast::StaticDef,
172) -> Static {
173 let (file_id, _) = module.definition_source(db);
174 let file_id = file_id.into();
175 let ctx = LocationCtx::new(db, module, file_id);
176 Static { id: ctx.to_def(static_def) }
177}
178
137pub fn enum_from_module(db: &impl HirDatabase, module: Module, enum_def: &ast::EnumDef) -> Enum { 179pub fn enum_from_module(db: &impl HirDatabase, module: Module, enum_def: &ast::EnumDef) -> Enum {
138 let (file_id, _) = module.definition_source(db); 180 let (file_id, _) = module.definition_source(db);
139 let file_id = file_id.into(); 181 let file_id = file_id.into();
diff --git a/crates/ra_hir/src/ty/infer.rs b/crates/ra_hir/src/ty/infer.rs
index 573115321..887153484 100644
--- a/crates/ra_hir/src/ty/infer.rs
+++ b/crates/ra_hir/src/ty/infer.rs
@@ -27,8 +27,9 @@ use test_utils::tested_by;
27 27
28use crate::{ 28use crate::{
29 Function, StructField, Path, Name, 29 Function, StructField, Path, Name,
30 FnSignature, AdtDef, 30 FnSignature, AdtDef,ConstSignature,
31 HirDatabase, 31 HirDatabase,
32 DefWithBody,
32 ImplItem, 33 ImplItem,
33 type_ref::{TypeRef, Mutability}, 34 type_ref::{TypeRef, Mutability},
34 expr::{Body, Expr, BindingAnnotation, Literal, ExprId, Pat, PatId, UnaryOp, BinaryOp, Statement, FieldPat, self}, 35 expr::{Body, Expr, BindingAnnotation, Literal, ExprId, Pat, PatId, UnaryOp, BinaryOp, Statement, FieldPat, self},
@@ -43,14 +44,17 @@ use crate::{
43use super::{Ty, TypableDef, Substs, primitive, op, FnSig, ApplicationTy, TypeCtor}; 44use super::{Ty, TypableDef, Substs, primitive, op, FnSig, ApplicationTy, TypeCtor};
44 45
45/// The entry point of type inference. 46/// The entry point of type inference.
46pub fn infer(db: &impl HirDatabase, func: Function) -> Arc<InferenceResult> { 47pub fn infer(db: &impl HirDatabase, def: DefWithBody) -> Arc<InferenceResult> {
47 db.check_canceled(); 48 db.check_canceled();
48 let body = func.body(db); 49 let body = def.body(db);
49 let resolver = func.resolver(db); 50 let resolver = def.resolver(db);
50 let mut ctx = InferenceContext::new(db, body, resolver); 51 let mut ctx = InferenceContext::new(db, body, resolver);
51 52
52 let signature = func.signature(db); 53 match def {
53 ctx.collect_fn_signature(&signature); 54 DefWithBody::Const(ref c) => ctx.collect_const_signature(&c.signature(db)),
55 DefWithBody::Function(ref f) => ctx.collect_fn_signature(&f.signature(db)),
56 DefWithBody::Static(ref s) => ctx.collect_const_signature(&s.signature(db)),
57 }
54 58
55 ctx.infer_body(); 59 ctx.infer_body();
56 60
@@ -1142,6 +1146,10 @@ impl<'a, D: HirDatabase> InferenceContext<'a, D> {
1142 ty 1146 ty
1143 } 1147 }
1144 1148
1149 fn collect_const_signature(&mut self, signature: &ConstSignature) {
1150 self.return_ty = self.make_ty(signature.type_ref());
1151 }
1152
1145 fn collect_fn_signature(&mut self, signature: &FnSignature) { 1153 fn collect_fn_signature(&mut self, signature: &FnSignature) {
1146 let body = Arc::clone(&self.body); // avoid borrow checker problem 1154 let body = Arc::clone(&self.body); // avoid borrow checker problem
1147 for (type_ref, pat) in signature.params().iter().zip(body.params()) { 1155 for (type_ref, pat) in signature.params().iter().zip(body.params()) {
diff --git a/crates/ra_hir/src/ty/tests.rs b/crates/ra_hir/src/ty/tests.rs
index 943c5499b..0b7c841df 100644
--- a/crates/ra_hir/src/ty/tests.rs
+++ b/crates/ra_hir/src/ty/tests.rs
@@ -11,6 +11,8 @@ use crate::{
11 source_binder, 11 source_binder,
12 mock::MockDatabase, 12 mock::MockDatabase,
13 ty::display::HirDisplay, 13 ty::display::HirDisplay,
14 ty::InferenceResult,
15 expr::BodySourceMap
14}; 16};
15 17
16// These tests compare the inference results for all expressions in a file 18// These tests compare the inference results for all expressions in a file
@@ -1267,6 +1269,9 @@ fn test() {
1267} 1269}
1268"#), 1270"#),
1269 @r###" 1271 @r###"
1272[52; 53) '1': u32
1273[103; 104) '2': u32
1274[211; 212) '5': u32
1270[227; 305) '{ ...:ID; }': () 1275[227; 305) '{ ...:ID; }': ()
1271[237; 238) 'x': u32 1276[237; 238) 'x': u32
1272[241; 252) 'Struct::FOO': u32 1277[241; 252) 'Struct::FOO': u32
@@ -1855,6 +1860,9 @@ fn test() {
1855} 1860}
1856"#), 1861"#),
1857 @r###" 1862 @r###"
1863[49; 50) '0': u32
1864[80; 83) '101': u32
1865[126; 128) '99': u32
1858[95; 213) '{ ...NST; }': () 1866[95; 213) '{ ...NST; }': ()
1859[138; 139) 'x': {unknown} 1867[138; 139) 'x': {unknown}
1860[142; 153) 'LOCAL_CONST': {unknown} 1868[142; 153) 'LOCAL_CONST': {unknown}
@@ -1881,6 +1889,10 @@ fn test() {
1881} 1889}
1882"#), 1890"#),
1883 @r###" 1891 @r###"
1892[29; 32) '101': u32
1893[70; 73) '101': u32
1894[118; 120) '99': u32
1895[161; 163) '99': u32
1884[85; 280) '{ ...MUT; }': () 1896[85; 280) '{ ...MUT; }': ()
1885[173; 174) 'x': {unknown} 1897[173; 174) 'x': {unknown}
1886[177; 189) 'LOCAL_STATIC': {unknown} 1898[177; 189) 'LOCAL_STATIC': {unknown}
@@ -2212,6 +2224,24 @@ fn test<T: Iterable<Item=u32>>() {
2212 ); 2224 );
2213} 2225}
2214 2226
2227#[test]
2228fn infer_const_body() {
2229 assert_snapshot_matches!(
2230 infer(r#"
2231const A: u32 = 1 + 1;
2232static B: u64 = { let x = 1; x };
2233"#),
2234 @r###"
2235[16; 17) '1': u32
2236[16; 21) '1 + 1': u32
2237[20; 21) '1': u32
2238[39; 55) '{ let ...1; x }': u64
2239[45; 46) 'x': u64
2240[49; 50) '1': u64
2241[52; 53) 'x': u64"###
2242 );
2243}
2244
2215fn type_at_pos(db: &MockDatabase, pos: FilePosition) -> String { 2245fn type_at_pos(db: &MockDatabase, pos: FilePosition) -> String {
2216 let func = source_binder::function_from_position(db, pos).unwrap(); 2246 let func = source_binder::function_from_position(db, pos).unwrap();
2217 let body_source_map = func.body_source_map(db); 2247 let body_source_map = func.body_source_map(db);
@@ -2228,11 +2258,11 @@ fn infer(content: &str) -> String {
2228 let source_file = db.parse(file_id); 2258 let source_file = db.parse(file_id);
2229 let mut acc = String::new(); 2259 let mut acc = String::new();
2230 acc.push_str("\n"); 2260 acc.push_str("\n");
2231 for fn_def in source_file.syntax().descendants().filter_map(ast::FnDef::cast) { 2261
2232 let func = source_binder::function_from_source(&db, file_id, fn_def).unwrap(); 2262 let mut infer_def = |inference_result: Arc<InferenceResult>,
2233 let inference_result = func.infer(&db); 2263 body_source_map: Arc<BodySourceMap>| {
2234 let body_source_map = func.body_source_map(&db);
2235 let mut types = Vec::new(); 2264 let mut types = Vec::new();
2265
2236 for (pat, ty) in inference_result.type_of_pat.iter() { 2266 for (pat, ty) in inference_result.type_of_pat.iter() {
2237 let syntax_ptr = match body_source_map.pat_syntax(pat) { 2267 let syntax_ptr = match body_source_map.pat_syntax(pat) {
2238 Some(sp) => sp, 2268 Some(sp) => sp,
@@ -2240,6 +2270,7 @@ fn infer(content: &str) -> String {
2240 }; 2270 };
2241 types.push((syntax_ptr, ty)); 2271 types.push((syntax_ptr, ty));
2242 } 2272 }
2273
2243 for (expr, ty) in inference_result.type_of_expr.iter() { 2274 for (expr, ty) in inference_result.type_of_expr.iter() {
2244 let syntax_ptr = match body_source_map.expr_syntax(expr) { 2275 let syntax_ptr = match body_source_map.expr_syntax(expr) {
2245 Some(sp) => sp, 2276 Some(sp) => sp,
@@ -2258,7 +2289,29 @@ fn infer(content: &str) -> String {
2258 }; 2289 };
2259 write!(acc, "{} '{}': {}\n", range, ellipsize(text, 15), ty.display(&db)).unwrap(); 2290 write!(acc, "{} '{}': {}\n", range, ellipsize(text, 15), ty.display(&db)).unwrap();
2260 } 2291 }
2292 };
2293
2294 for const_def in source_file.syntax().descendants().filter_map(ast::ConstDef::cast) {
2295 let konst = source_binder::const_from_source(&db, file_id, const_def).unwrap();
2296 let inference_result = konst.infer(&db);
2297 let body_source_map = konst.body_source_map(&db);
2298 infer_def(inference_result, body_source_map)
2261 } 2299 }
2300
2301 for static_def in source_file.syntax().descendants().filter_map(ast::StaticDef::cast) {
2302 let static_ = source_binder::static_from_source(&db, file_id, static_def).unwrap();
2303 let inference_result = static_.infer(&db);
2304 let body_source_map = static_.body_source_map(&db);
2305 infer_def(inference_result, body_source_map)
2306 }
2307
2308 for fn_def in source_file.syntax().descendants().filter_map(ast::FnDef::cast) {
2309 let func = source_binder::function_from_source(&db, file_id, fn_def).unwrap();
2310 let inference_result = func.infer(&db);
2311 let body_source_map = func.body_source_map(&db);
2312 infer_def(inference_result, body_source_map)
2313 }
2314
2262 acc.truncate(acc.trim_end().len()); 2315 acc.truncate(acc.trim_end().len());
2263 acc 2316 acc
2264} 2317}