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-rw-r--r--crates/ra_cfg/src/lib.rs5
-rw-r--r--crates/ra_db/src/fixture.rs3
-rw-r--r--crates/ra_db/src/input.rs17
-rw-r--r--crates/ra_fmt/src/lib.rs5
-rw-r--r--crates/ra_hir/src/code_model.rs10
-rw-r--r--crates/ra_hir/src/db.rs10
-rw-r--r--crates/ra_hir/src/expr.rs571
-rw-r--r--crates/ra_hir/src/expr/scope.rs2
-rw-r--r--crates/ra_hir/src/marks.rs1
-rw-r--r--crates/ra_hir/src/source_binder.rs2
-rw-r--r--crates/ra_hir/src/ty/infer.rs11
-rw-r--r--crates/ra_hir/src/ty/infer/expr.rs12
-rw-r--r--crates/ra_hir/src/ty/lower.rs40
-rw-r--r--crates/ra_hir/src/ty/primitive.rs26
-rw-r--r--crates/ra_hir/src/ty/tests.rs3
-rw-r--r--crates/ra_hir/src/ty/traits/chalk.rs2
-rw-r--r--crates/ra_hir_def/src/body.rs144
-rw-r--r--crates/ra_hir_def/src/body/lower.rs (renamed from crates/ra_hir/src/expr/lower.rs)62
-rw-r--r--crates/ra_hir_def/src/builtin_type.rs105
-rw-r--r--crates/ra_hir_def/src/expr.rs421
-rw-r--r--crates/ra_hir_def/src/lib.rs2
-rw-r--r--crates/ra_ide_api/src/change.rs4
-rw-r--r--crates/ra_project_model/src/cargo_workspace.rs14
23 files changed, 799 insertions, 673 deletions
diff --git a/crates/ra_cfg/src/lib.rs b/crates/ra_cfg/src/lib.rs
index 1bee3eb99..51d953f6e 100644
--- a/crates/ra_cfg/src/lib.rs
+++ b/crates/ra_cfg/src/lib.rs
@@ -1,11 +1,12 @@
1//! ra_cfg defines conditional compiling options, `cfg` attibute parser and evaluator 1//! ra_cfg defines conditional compiling options, `cfg` attibute parser and evaluator
2
3mod cfg_expr;
4
2use std::iter::IntoIterator; 5use std::iter::IntoIterator;
3 6
4use ra_syntax::SmolStr; 7use ra_syntax::SmolStr;
5use rustc_hash::FxHashSet; 8use rustc_hash::FxHashSet;
6 9
7mod cfg_expr;
8
9pub use cfg_expr::{parse_cfg, CfgExpr}; 10pub use cfg_expr::{parse_cfg, CfgExpr};
10 11
11/// Configuration options used for conditional compilition on items with `cfg` attributes. 12/// Configuration options used for conditional compilition on items with `cfg` attributes.
diff --git a/crates/ra_db/src/fixture.rs b/crates/ra_db/src/fixture.rs
index f5dd59f84..ee883b615 100644
--- a/crates/ra_db/src/fixture.rs
+++ b/crates/ra_db/src/fixture.rs
@@ -1,5 +1,6 @@
1//! FIXME: write short doc here 1//! FIXME: write short doc here
2 2
3use std::str::FromStr;
3use std::sync::Arc; 4use std::sync::Arc;
4 5
5use ra_cfg::CfgOptions; 6use ra_cfg::CfgOptions;
@@ -164,7 +165,7 @@ fn parse_meta(meta: &str) -> ParsedMeta {
164 match key { 165 match key {
165 "crate" => krate = Some(value.to_string()), 166 "crate" => krate = Some(value.to_string()),
166 "deps" => deps = value.split(',').map(|it| it.to_string()).collect(), 167 "deps" => deps = value.split(',').map(|it| it.to_string()).collect(),
167 "edition" => edition = Edition::from_string(&value), 168 "edition" => edition = Edition::from_str(&value).unwrap(),
168 "cfg" => { 169 "cfg" => {
169 for key in value.split(',') { 170 for key in value.split(',') {
170 match split1(key, '=') { 171 match split1(key, '=') {
diff --git a/crates/ra_db/src/input.rs b/crates/ra_db/src/input.rs
index 60f7dc881..c0d95a13f 100644
--- a/crates/ra_db/src/input.rs
+++ b/crates/ra_db/src/input.rs
@@ -13,6 +13,7 @@ use ra_syntax::SmolStr;
13use rustc_hash::FxHashSet; 13use rustc_hash::FxHashSet;
14 14
15use crate::{RelativePath, RelativePathBuf}; 15use crate::{RelativePath, RelativePathBuf};
16use std::str::FromStr;
16 17
17/// `FileId` is an integer which uniquely identifies a file. File paths are 18/// `FileId` is an integer which uniquely identifies a file. File paths are
18/// messy and system-dependent, so most of the code should work directly with 19/// messy and system-dependent, so most of the code should work directly with
@@ -97,12 +98,18 @@ pub enum Edition {
97 Edition2015, 98 Edition2015,
98} 99}
99 100
100impl Edition { 101#[derive(Debug)]
101 //FIXME: replace with FromStr with proper error handling 102pub struct ParseEditionError {
102 pub fn from_string(s: &str) -> Edition { 103 pub msg: String,
104}
105
106impl FromStr for Edition {
107 type Err = ParseEditionError;
108 fn from_str(s: &str) -> Result<Self, Self::Err> {
103 match s { 109 match s {
104 "2015" => Edition::Edition2015, 110 "2015" => Ok(Edition::Edition2015),
105 "2018" | _ => Edition::Edition2018, 111 "2018" => Ok(Edition::Edition2018),
112 _ => Err(ParseEditionError { msg: format!("unknown edition: {}", s) }),
106 } 113 }
107 } 114 }
108} 115}
diff --git a/crates/ra_fmt/src/lib.rs b/crates/ra_fmt/src/lib.rs
index e22ac9753..a30ed4cbb 100644
--- a/crates/ra_fmt/src/lib.rs
+++ b/crates/ra_fmt/src/lib.rs
@@ -1,5 +1,7 @@
1//! This crate provides some utilities for indenting rust code. 1//! This crate provides some utilities for indenting rust code.
2//! 2
3use std::iter::successors;
4
3use itertools::Itertools; 5use itertools::Itertools;
4use ra_syntax::{ 6use ra_syntax::{
5 ast::{self, AstNode, AstToken}, 7 ast::{self, AstNode, AstToken},
@@ -7,7 +9,6 @@ use ra_syntax::{
7 SyntaxKind::*, 9 SyntaxKind::*,
8 SyntaxNode, SyntaxToken, T, 10 SyntaxNode, SyntaxToken, T,
9}; 11};
10use std::iter::successors;
11 12
12pub fn reindent(text: &str, indent: &str) -> String { 13pub fn reindent(text: &str, indent: &str) -> String {
13 let indent = format!("\n{}", indent); 14 let indent = format!("\n{}", indent);
diff --git a/crates/ra_hir/src/code_model.rs b/crates/ra_hir/src/code_model.rs
index 5a0bd0c19..2fd4ccb10 100644
--- a/crates/ra_hir/src/code_model.rs
+++ b/crates/ra_hir/src/code_model.rs
@@ -550,7 +550,7 @@ where
550 } 550 }
551 551
552 fn body(self, db: &impl HirDatabase) -> Arc<Body> { 552 fn body(self, db: &impl HirDatabase) -> Arc<Body> {
553 db.body_hir(self.into()) 553 db.body(self.into())
554 } 554 }
555 555
556 fn body_source_map(self, db: &impl HirDatabase) -> Arc<BodySourceMap> { 556 fn body_source_map(self, db: &impl HirDatabase) -> Arc<BodySourceMap> {
@@ -564,7 +564,7 @@ impl HasBody for DefWithBody {
564 } 564 }
565 565
566 fn body(self, db: &impl HirDatabase) -> Arc<Body> { 566 fn body(self, db: &impl HirDatabase) -> Arc<Body> {
567 db.body_hir(self) 567 db.body(self)
568 } 568 }
569 569
570 fn body_source_map(self, db: &impl HirDatabase) -> Arc<BodySourceMap> { 570 fn body_source_map(self, db: &impl HirDatabase) -> Arc<BodySourceMap> {
@@ -666,7 +666,7 @@ impl Function {
666 } 666 }
667 667
668 pub fn body(self, db: &impl HirDatabase) -> Arc<Body> { 668 pub fn body(self, db: &impl HirDatabase) -> Arc<Body> {
669 db.body_hir(self.into()) 669 db.body(self.into())
670 } 670 }
671 671
672 pub fn ty(self, db: &impl HirDatabase) -> Ty { 672 pub fn ty(self, db: &impl HirDatabase) -> Ty {
@@ -1079,7 +1079,7 @@ pub struct Local {
1079 1079
1080impl Local { 1080impl Local {
1081 pub fn name(self, db: &impl HirDatabase) -> Option<Name> { 1081 pub fn name(self, db: &impl HirDatabase) -> Option<Name> {
1082 let body = db.body_hir(self.parent); 1082 let body = db.body(self.parent);
1083 match &body[self.pat_id] { 1083 match &body[self.pat_id] {
1084 Pat::Bind { name, .. } => Some(name.clone()), 1084 Pat::Bind { name, .. } => Some(name.clone()),
1085 _ => None, 1085 _ => None,
@@ -1091,7 +1091,7 @@ impl Local {
1091 } 1091 }
1092 1092
1093 pub fn is_mut(self, db: &impl HirDatabase) -> bool { 1093 pub fn is_mut(self, db: &impl HirDatabase) -> bool {
1094 let body = db.body_hir(self.parent); 1094 let body = db.body(self.parent);
1095 match &body[self.pat_id] { 1095 match &body[self.pat_id] {
1096 Pat::Bind { mode, .. } => match mode { 1096 Pat::Bind { mode, .. } => match mode {
1097 BindingAnnotation::Mutable | BindingAnnotation::RefMut => true, 1097 BindingAnnotation::Mutable | BindingAnnotation::RefMut => true,
diff --git a/crates/ra_hir/src/db.rs b/crates/ra_hir/src/db.rs
index 75c322c99..9ac811232 100644
--- a/crates/ra_hir/src/db.rs
+++ b/crates/ra_hir/src/db.rs
@@ -8,6 +8,7 @@ use ra_syntax::SmolStr;
8 8
9use crate::{ 9use crate::{
10 debug::HirDebugDatabase, 10 debug::HirDebugDatabase,
11 expr::{Body, BodySourceMap},
11 generics::{GenericDef, GenericParams}, 12 generics::{GenericDef, GenericParams},
12 ids, 13 ids,
13 impl_block::{ImplBlock, ImplSourceMap, ModuleImplBlocks}, 14 impl_block::{ImplBlock, ImplSourceMap, ModuleImplBlocks},
@@ -113,13 +114,10 @@ pub trait HirDatabase: DefDatabase + AstDatabase {
113 fn generic_defaults(&self, def: GenericDef) -> Substs; 114 fn generic_defaults(&self, def: GenericDef) -> Substs;
114 115
115 #[salsa::invoke(crate::expr::body_with_source_map_query)] 116 #[salsa::invoke(crate::expr::body_with_source_map_query)]
116 fn body_with_source_map( 117 fn body_with_source_map(&self, def: DefWithBody) -> (Arc<Body>, Arc<BodySourceMap>);
117 &self,
118 def: DefWithBody,
119 ) -> (Arc<crate::expr::Body>, Arc<crate::expr::BodySourceMap>);
120 118
121 #[salsa::invoke(crate::expr::body_hir_query)] 119 #[salsa::invoke(crate::expr::body_query)]
122 fn body_hir(&self, def: DefWithBody) -> Arc<crate::expr::Body>; 120 fn body(&self, def: DefWithBody) -> Arc<Body>;
123 121
124 #[salsa::invoke(crate::ty::method_resolution::CrateImplBlocks::impls_in_crate_query)] 122 #[salsa::invoke(crate::ty::method_resolution::CrateImplBlocks::impls_in_crate_query)]
125 fn impls_in_crate(&self, krate: Crate) -> Arc<CrateImplBlocks>; 123 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 6e23197a4..82955fa55 100644
--- a/crates/ra_hir/src/expr.rs
+++ b/crates/ra_hir/src/expr.rs
@@ -1,549 +1,24 @@
1//! FIXME: write short doc here 1//! FIXME: write short doc here
2 2
3pub(crate) mod lower;
4pub(crate) mod scope; 3pub(crate) mod scope;
5pub(crate) mod validation; 4pub(crate) mod validation;
6 5
7use std::{ops::Index, sync::Arc}; 6use std::sync::Arc;
8 7
9use hir_def::{
10 path::GenericArgs,
11 type_ref::{Mutability, TypeRef},
12};
13use ra_arena::{impl_arena_id, map::ArenaMap, Arena, RawId};
14use ra_syntax::{ast, AstPtr}; 8use ra_syntax::{ast, AstPtr};
15use rustc_hash::FxHashMap;
16 9
17use crate::{ 10use crate::{db::HirDatabase, DefWithBody, HasSource, Resolver};
18 db::HirDatabase,
19 ty::primitive::{UncertainFloatTy, UncertainIntTy},
20 DefWithBody, Either, HasSource, Name, Path, Resolver, Source,
21};
22 11
23pub use self::scope::ExprScopes; 12pub use self::scope::ExprScopes;
24 13
25#[derive(Debug, Clone, Copy, PartialEq, Eq, PartialOrd, Ord, Hash)] 14pub use hir_def::{
26pub struct ExprId(RawId); 15 body::{Body, BodySourceMap, ExprPtr, ExprSource, PatPtr, PatSource},
27impl_arena_id!(ExprId); 16 expr::{
28 17 ArithOp, Array, BinaryOp, BindingAnnotation, CmpOp, Expr, ExprId, Literal, LogicOp,
29#[derive(Debug, Clone, Copy, PartialEq, Eq, PartialOrd, Ord, Hash)] 18 MatchArm, Ordering, Pat, PatId, RecordFieldPat, RecordLitField, Statement, UnaryOp,
30pub struct PatId(RawId);
31impl_arena_id!(PatId);
32
33/// The body of an item (function, const etc.).
34#[derive(Debug, Eq, PartialEq)]
35pub struct Body {
36 /// The def of the item this body belongs to
37 owner: DefWithBody,
38 exprs: Arena<ExprId, Expr>,
39 pats: Arena<PatId, Pat>,
40 /// The patterns for the function's parameters. While the parameter types are
41 /// part of the function signature, the patterns are not (they don't change
42 /// the external type of the function).
43 ///
44 /// If this `Body` is for the body of a constant, this will just be
45 /// empty.
46 params: Vec<PatId>,
47 /// The `ExprId` of the actual body expression.
48 body_expr: ExprId,
49}
50
51type ExprPtr = Either<AstPtr<ast::Expr>, AstPtr<ast::RecordField>>;
52type ExprSource = Source<ExprPtr>;
53
54type PatPtr = Either<AstPtr<ast::Pat>, AstPtr<ast::SelfParam>>;
55type PatSource = Source<PatPtr>;
56
57/// An item body together with the mapping from syntax nodes to HIR expression
58/// IDs. This is needed to go from e.g. a position in a file to the HIR
59/// expression containing it; but for type inference etc., we want to operate on
60/// a structure that is agnostic to the actual positions of expressions in the
61/// file, so that we don't recompute types whenever some whitespace is typed.
62///
63/// One complication here is that, due to macro expansion, a single `Body` might
64/// be spread across several files. So, for each ExprId and PatId, we record
65/// both the HirFileId and the position inside the file. However, we only store
66/// AST -> ExprId mapping for non-macro files, as it is not clear how to handle
67/// this properly for macros.
68#[derive(Default, Debug, Eq, PartialEq)]
69pub struct BodySourceMap {
70 expr_map: FxHashMap<ExprPtr, ExprId>,
71 expr_map_back: ArenaMap<ExprId, ExprSource>,
72 pat_map: FxHashMap<PatPtr, PatId>,
73 pat_map_back: ArenaMap<PatId, PatSource>,
74 field_map: FxHashMap<(ExprId, usize), AstPtr<ast::RecordField>>,
75}
76
77impl Body {
78 pub fn params(&self) -> &[PatId] {
79 &self.params
80 }
81
82 pub fn body_expr(&self) -> ExprId {
83 self.body_expr
84 }
85
86 pub fn owner(&self) -> DefWithBody {
87 self.owner
88 }
89
90 pub fn exprs(&self) -> impl Iterator<Item = (ExprId, &Expr)> {
91 self.exprs.iter()
92 }
93
94 pub fn pats(&self) -> impl Iterator<Item = (PatId, &Pat)> {
95 self.pats.iter()
96 }
97}
98
99// needs arbitrary_self_types to be a method... or maybe move to the def?
100pub(crate) fn resolver_for_expr(
101 body: Arc<Body>,
102 db: &impl HirDatabase,
103 expr_id: ExprId,
104) -> Resolver {
105 let scopes = db.expr_scopes(body.owner);
106 resolver_for_scope(body, db, scopes.scope_for(expr_id))
107}
108
109pub(crate) fn resolver_for_scope(
110 body: Arc<Body>,
111 db: &impl HirDatabase,
112 scope_id: Option<scope::ScopeId>,
113) -> Resolver {
114 let mut r = body.owner.resolver(db);
115 let scopes = db.expr_scopes(body.owner);
116 let scope_chain = scopes.scope_chain(scope_id).collect::<Vec<_>>();
117 for scope in scope_chain.into_iter().rev() {
118 r = r.push_expr_scope(Arc::clone(&scopes), scope);
119 }
120 r
121}
122
123impl Index<ExprId> for Body {
124 type Output = Expr;
125
126 fn index(&self, expr: ExprId) -> &Expr {
127 &self.exprs[expr]
128 }
129}
130
131impl Index<PatId> for Body {
132 type Output = Pat;
133
134 fn index(&self, pat: PatId) -> &Pat {
135 &self.pats[pat]
136 }
137}
138
139impl BodySourceMap {
140 pub(crate) fn expr_syntax(&self, expr: ExprId) -> Option<ExprSource> {
141 self.expr_map_back.get(expr).copied()
142 }
143
144 pub(crate) fn node_expr(&self, node: &ast::Expr) -> Option<ExprId> {
145 self.expr_map.get(&Either::A(AstPtr::new(node))).cloned()
146 }
147
148 pub(crate) fn pat_syntax(&self, pat: PatId) -> Option<PatSource> {
149 self.pat_map_back.get(pat).copied()
150 }
151
152 pub(crate) fn node_pat(&self, node: &ast::Pat) -> Option<PatId> {
153 self.pat_map.get(&Either::A(AstPtr::new(node))).cloned()
154 }
155
156 pub(crate) fn field_syntax(&self, expr: ExprId, field: usize) -> AstPtr<ast::RecordField> {
157 self.field_map[&(expr, field)]
158 }
159}
160
161#[derive(Debug, Clone, Eq, PartialEq)]
162pub enum Literal {
163 String(String),
164 ByteString(Vec<u8>),
165 Char(char),
166 Bool(bool),
167 Int(u64, UncertainIntTy),
168 Float(u64, UncertainFloatTy), // FIXME: f64 is not Eq
169}
170
171#[derive(Debug, Clone, Eq, PartialEq)]
172pub enum Expr {
173 /// This is produced if syntax tree does not have a required expression piece.
174 Missing,
175 Path(Path),
176 If {
177 condition: ExprId,
178 then_branch: ExprId,
179 else_branch: Option<ExprId>,
180 },
181 Block {
182 statements: Vec<Statement>,
183 tail: Option<ExprId>,
184 },
185 Loop {
186 body: ExprId,
187 },
188 While {
189 condition: ExprId,
190 body: ExprId,
191 },
192 For {
193 iterable: ExprId,
194 pat: PatId,
195 body: ExprId,
196 },
197 Call {
198 callee: ExprId,
199 args: Vec<ExprId>,
200 },
201 MethodCall {
202 receiver: ExprId,
203 method_name: Name,
204 args: Vec<ExprId>,
205 generic_args: Option<GenericArgs>,
206 },
207 Match {
208 expr: ExprId,
209 arms: Vec<MatchArm>,
210 },
211 Continue,
212 Break {
213 expr: Option<ExprId>,
214 },
215 Return {
216 expr: Option<ExprId>,
217 },
218 RecordLit {
219 path: Option<Path>,
220 fields: Vec<RecordLitField>,
221 spread: Option<ExprId>,
222 },
223 Field {
224 expr: ExprId,
225 name: Name,
226 },
227 Await {
228 expr: ExprId,
229 },
230 Try {
231 expr: ExprId,
232 },
233 TryBlock {
234 body: ExprId,
235 },
236 Cast {
237 expr: ExprId,
238 type_ref: TypeRef,
239 }, 19 },
240 Ref { 20};
241 expr: ExprId,
242 mutability: Mutability,
243 },
244 Box {
245 expr: ExprId,
246 },
247 UnaryOp {
248 expr: ExprId,
249 op: UnaryOp,
250 },
251 BinaryOp {
252 lhs: ExprId,
253 rhs: ExprId,
254 op: Option<BinaryOp>,
255 },
256 Index {
257 base: ExprId,
258 index: ExprId,
259 },
260 Lambda {
261 args: Vec<PatId>,
262 arg_types: Vec<Option<TypeRef>>,
263 body: ExprId,
264 },
265 Tuple {
266 exprs: Vec<ExprId>,
267 },
268 Array(Array),
269 Literal(Literal),
270}
271
272#[derive(Copy, Clone, Debug, PartialEq, Eq, Hash)]
273pub enum BinaryOp {
274 LogicOp(LogicOp),
275 ArithOp(ArithOp),
276 CmpOp(CmpOp),
277 Assignment { op: Option<ArithOp> },
278}
279
280#[derive(Copy, Clone, Debug, PartialEq, Eq, Hash)]
281pub enum LogicOp {
282 And,
283 Or,
284}
285
286#[derive(Copy, Clone, Debug, PartialEq, Eq, Hash)]
287pub enum CmpOp {
288 Eq { negated: bool },
289 Ord { ordering: Ordering, strict: bool },
290}
291
292#[derive(Copy, Clone, Debug, PartialEq, Eq, Hash)]
293pub enum Ordering {
294 Less,
295 Greater,
296}
297
298#[derive(Copy, Clone, Debug, PartialEq, Eq, Hash)]
299pub enum ArithOp {
300 Add,
301 Mul,
302 Sub,
303 Div,
304 Rem,
305 Shl,
306 Shr,
307 BitXor,
308 BitOr,
309 BitAnd,
310}
311
312pub use ra_syntax::ast::PrefixOp as UnaryOp;
313#[derive(Debug, Clone, Eq, PartialEq)]
314pub enum Array {
315 ElementList(Vec<ExprId>),
316 Repeat { initializer: ExprId, repeat: ExprId },
317}
318
319#[derive(Debug, Clone, Eq, PartialEq)]
320pub struct MatchArm {
321 pub pats: Vec<PatId>,
322 pub guard: Option<ExprId>,
323 pub expr: ExprId,
324}
325
326#[derive(Debug, Clone, Eq, PartialEq)]
327pub struct RecordLitField {
328 pub name: Name,
329 pub expr: ExprId,
330}
331
332#[derive(Debug, Clone, Eq, PartialEq)]
333pub enum Statement {
334 Let { pat: PatId, type_ref: Option<TypeRef>, initializer: Option<ExprId> },
335 Expr(ExprId),
336}
337
338impl Expr {
339 pub fn walk_child_exprs(&self, mut f: impl FnMut(ExprId)) {
340 match self {
341 Expr::Missing => {}
342 Expr::Path(_) => {}
343 Expr::If { condition, then_branch, else_branch } => {
344 f(*condition);
345 f(*then_branch);
346 if let Some(else_branch) = else_branch {
347 f(*else_branch);
348 }
349 }
350 Expr::Block { statements, tail } => {
351 for stmt in statements {
352 match stmt {
353 Statement::Let { initializer, .. } => {
354 if let Some(expr) = initializer {
355 f(*expr);
356 }
357 }
358 Statement::Expr(e) => f(*e),
359 }
360 }
361 if let Some(expr) = tail {
362 f(*expr);
363 }
364 }
365 Expr::TryBlock { body } => f(*body),
366 Expr::Loop { body } => f(*body),
367 Expr::While { condition, body } => {
368 f(*condition);
369 f(*body);
370 }
371 Expr::For { iterable, body, .. } => {
372 f(*iterable);
373 f(*body);
374 }
375 Expr::Call { callee, args } => {
376 f(*callee);
377 for arg in args {
378 f(*arg);
379 }
380 }
381 Expr::MethodCall { receiver, args, .. } => {
382 f(*receiver);
383 for arg in args {
384 f(*arg);
385 }
386 }
387 Expr::Match { expr, arms } => {
388 f(*expr);
389 for arm in arms {
390 f(arm.expr);
391 }
392 }
393 Expr::Continue => {}
394 Expr::Break { expr } | Expr::Return { expr } => {
395 if let Some(expr) = expr {
396 f(*expr);
397 }
398 }
399 Expr::RecordLit { fields, spread, .. } => {
400 for field in fields {
401 f(field.expr);
402 }
403 if let Some(expr) = spread {
404 f(*expr);
405 }
406 }
407 Expr::Lambda { body, .. } => {
408 f(*body);
409 }
410 Expr::BinaryOp { lhs, rhs, .. } => {
411 f(*lhs);
412 f(*rhs);
413 }
414 Expr::Index { base, index } => {
415 f(*base);
416 f(*index);
417 }
418 Expr::Field { expr, .. }
419 | Expr::Await { expr }
420 | Expr::Try { expr }
421 | Expr::Cast { expr, .. }
422 | Expr::Ref { expr, .. }
423 | Expr::UnaryOp { expr, .. }
424 | Expr::Box { expr } => {
425 f(*expr);
426 }
427 Expr::Tuple { exprs } => {
428 for expr in exprs {
429 f(*expr);
430 }
431 }
432 Expr::Array(a) => match a {
433 Array::ElementList(exprs) => {
434 for expr in exprs {
435 f(*expr);
436 }
437 }
438 Array::Repeat { initializer, repeat } => {
439 f(*initializer);
440 f(*repeat)
441 }
442 },
443 Expr::Literal(_) => {}
444 }
445 }
446}
447
448/// Explicit binding annotations given in the HIR for a binding. Note
449/// that this is not the final binding *mode* that we infer after type
450/// inference.
451#[derive(Clone, PartialEq, Eq, Debug, Copy)]
452pub enum BindingAnnotation {
453 /// No binding annotation given: this means that the final binding mode
454 /// will depend on whether we have skipped through a `&` reference
455 /// when matching. For example, the `x` in `Some(x)` will have binding
456 /// mode `None`; if you do `let Some(x) = &Some(22)`, it will
457 /// ultimately be inferred to be by-reference.
458 Unannotated,
459
460 /// Annotated with `mut x` -- could be either ref or not, similar to `None`.
461 Mutable,
462
463 /// Annotated as `ref`, like `ref x`
464 Ref,
465
466 /// Annotated as `ref mut x`.
467 RefMut,
468}
469
470impl BindingAnnotation {
471 fn new(is_mutable: bool, is_ref: bool) -> Self {
472 match (is_mutable, is_ref) {
473 (true, true) => BindingAnnotation::RefMut,
474 (false, true) => BindingAnnotation::Ref,
475 (true, false) => BindingAnnotation::Mutable,
476 (false, false) => BindingAnnotation::Unannotated,
477 }
478 }
479}
480
481#[derive(Debug, Clone, Eq, PartialEq)]
482pub struct RecordFieldPat {
483 pub(crate) name: Name,
484 pub(crate) pat: PatId,
485}
486
487/// Close relative to rustc's hir::PatKind
488#[derive(Debug, Clone, Eq, PartialEq)]
489pub enum Pat {
490 Missing,
491 Wild,
492 Tuple(Vec<PatId>),
493 Record {
494 path: Option<Path>,
495 args: Vec<RecordFieldPat>,
496 // FIXME: 'ellipsis' option
497 },
498 Range {
499 start: ExprId,
500 end: ExprId,
501 },
502 Slice {
503 prefix: Vec<PatId>,
504 rest: Option<PatId>,
505 suffix: Vec<PatId>,
506 },
507 Path(Path),
508 Lit(ExprId),
509 Bind {
510 mode: BindingAnnotation,
511 name: Name,
512 subpat: Option<PatId>,
513 },
514 TupleStruct {
515 path: Option<Path>,
516 args: Vec<PatId>,
517 },
518 Ref {
519 pat: PatId,
520 mutability: Mutability,
521 },
522}
523
524impl Pat {
525 pub fn walk_child_pats(&self, mut f: impl FnMut(PatId)) {
526 match self {
527 Pat::Range { .. } | Pat::Lit(..) | Pat::Path(..) | Pat::Wild | Pat::Missing => {}
528 Pat::Bind { subpat, .. } => {
529 subpat.iter().copied().for_each(f);
530 }
531 Pat::Tuple(args) | Pat::TupleStruct { args, .. } => {
532 args.iter().copied().for_each(f);
533 }
534 Pat::Ref { pat, .. } => f(*pat),
535 Pat::Slice { prefix, rest, suffix } => {
536 let total_iter = prefix.iter().chain(rest.iter()).chain(suffix.iter());
537 total_iter.copied().for_each(f);
538 }
539 Pat::Record { args, .. } => {
540 args.iter().map(|f| f.pat).for_each(f);
541 }
542 }
543 }
544}
545 21
546// Queries
547pub(crate) fn body_with_source_map_query( 22pub(crate) fn body_with_source_map_query(
548 db: &impl HirDatabase, 23 db: &impl HirDatabase,
549 def: DefWithBody, 24 def: DefWithBody,
@@ -565,11 +40,35 @@ pub(crate) fn body_with_source_map_query(
565 (src.file_id, src.ast.body()) 40 (src.file_id, src.ast.body())
566 } 41 }
567 }; 42 };
568 43 let resolver = hir_def::body::MacroResolver::new(db, def.module(db).id);
569 let (body, source_map) = lower::lower(db, def.resolver(db), file_id, def, params, body); 44 let (body, source_map) = Body::new(db, resolver, file_id, params, body);
570 (Arc::new(body), Arc::new(source_map)) 45 (Arc::new(body), Arc::new(source_map))
571} 46}
572 47
573pub(crate) fn body_hir_query(db: &impl HirDatabase, def: DefWithBody) -> Arc<Body> { 48pub(crate) fn body_query(db: &impl HirDatabase, def: DefWithBody) -> Arc<Body> {
574 db.body_with_source_map(def).0 49 db.body_with_source_map(def).0
575} 50}
51
52// needs arbitrary_self_types to be a method... or maybe move to the def?
53pub(crate) fn resolver_for_expr(
54 db: &impl HirDatabase,
55 owner: DefWithBody,
56 expr_id: ExprId,
57) -> Resolver {
58 let scopes = db.expr_scopes(owner);
59 resolver_for_scope(db, owner, scopes.scope_for(expr_id))
60}
61
62pub(crate) fn resolver_for_scope(
63 db: &impl HirDatabase,
64 owner: DefWithBody,
65 scope_id: Option<scope::ScopeId>,
66) -> Resolver {
67 let mut r = owner.resolver(db);
68 let scopes = db.expr_scopes(owner);
69 let scope_chain = scopes.scope_chain(scope_id).collect::<Vec<_>>();
70 for scope in scope_chain.into_iter().rev() {
71 r = r.push_expr_scope(Arc::clone(&scopes), scope);
72 }
73 r
74}
diff --git a/crates/ra_hir/src/expr/scope.rs b/crates/ra_hir/src/expr/scope.rs
index daf8d8d07..0e49a28d6 100644
--- a/crates/ra_hir/src/expr/scope.rs
+++ b/crates/ra_hir/src/expr/scope.rs
@@ -46,7 +46,7 @@ pub(crate) struct ScopeData {
46 46
47impl ExprScopes { 47impl ExprScopes {
48 pub(crate) fn expr_scopes_query(db: &impl HirDatabase, def: DefWithBody) -> Arc<ExprScopes> { 48 pub(crate) fn expr_scopes_query(db: &impl HirDatabase, def: DefWithBody) -> Arc<ExprScopes> {
49 let body = db.body_hir(def); 49 let body = db.body(def);
50 let res = ExprScopes::new(body); 50 let res = ExprScopes::new(body);
51 Arc::new(res) 51 Arc::new(res)
52 } 52 }
diff --git a/crates/ra_hir/src/marks.rs b/crates/ra_hir/src/marks.rs
index 0d4fa5b67..0f754eb9c 100644
--- a/crates/ra_hir/src/marks.rs
+++ b/crates/ra_hir/src/marks.rs
@@ -5,6 +5,5 @@ test_utils::marks!(
5 type_var_cycles_resolve_as_possible 5 type_var_cycles_resolve_as_possible
6 type_var_resolves_to_int_var 6 type_var_resolves_to_int_var
7 match_ergonomics_ref 7 match_ergonomics_ref
8 infer_while_let
9 coerce_merge_fail_fallback 8 coerce_merge_fail_fallback
10); 9);
diff --git a/crates/ra_hir/src/source_binder.rs b/crates/ra_hir/src/source_binder.rs
index fe4211819..f28e9c931 100644
--- a/crates/ra_hir/src/source_binder.rs
+++ b/crates/ra_hir/src/source_binder.rs
@@ -150,7 +150,7 @@ impl SourceAnalyzer {
150 None => scope_for(&scopes, &source_map, &node), 150 None => scope_for(&scopes, &source_map, &node),
151 Some(offset) => scope_for_offset(&scopes, &source_map, file_id.into(), offset), 151 Some(offset) => scope_for_offset(&scopes, &source_map, file_id.into(), offset),
152 }; 152 };
153 let resolver = expr::resolver_for_scope(def.body(db), db, scope); 153 let resolver = expr::resolver_for_scope(db, def, scope);
154 SourceAnalyzer { 154 SourceAnalyzer {
155 resolver, 155 resolver,
156 body_owner: Some(def), 156 body_owner: Some(def),
diff --git a/crates/ra_hir/src/ty/infer.rs b/crates/ra_hir/src/ty/infer.rs
index 2370e8d4f..f17c6c614 100644
--- a/crates/ra_hir/src/ty/infer.rs
+++ b/crates/ra_hir/src/ty/infer.rs
@@ -43,7 +43,7 @@ use crate::{
43 expr::{BindingAnnotation, Body, ExprId, PatId}, 43 expr::{BindingAnnotation, Body, ExprId, PatId},
44 resolve::{Resolver, TypeNs}, 44 resolve::{Resolver, TypeNs},
45 ty::infer::diagnostics::InferenceDiagnostic, 45 ty::infer::diagnostics::InferenceDiagnostic,
46 Adt, AssocItem, ConstData, DefWithBody, FnData, Function, HasBody, Path, StructField, 46 Adt, AssocItem, ConstData, DefWithBody, FnData, Function, Path, StructField,
47}; 47};
48 48
49macro_rules! ty_app { 49macro_rules! ty_app {
@@ -64,9 +64,8 @@ mod coerce;
64/// The entry point of type inference. 64/// The entry point of type inference.
65pub fn infer_query(db: &impl HirDatabase, def: DefWithBody) -> Arc<InferenceResult> { 65pub fn infer_query(db: &impl HirDatabase, def: DefWithBody) -> Arc<InferenceResult> {
66 let _p = profile("infer_query"); 66 let _p = profile("infer_query");
67 let body = def.body(db);
68 let resolver = def.resolver(db); 67 let resolver = def.resolver(db);
69 let mut ctx = InferenceContext::new(db, body, resolver); 68 let mut ctx = InferenceContext::new(db, def, resolver);
70 69
71 match def { 70 match def {
72 DefWithBody::Const(ref c) => ctx.collect_const(&c.data(db)), 71 DefWithBody::Const(ref c) => ctx.collect_const(&c.data(db)),
@@ -187,6 +186,7 @@ impl Index<PatId> for InferenceResult {
187#[derive(Clone, Debug)] 186#[derive(Clone, Debug)]
188struct InferenceContext<'a, D: HirDatabase> { 187struct InferenceContext<'a, D: HirDatabase> {
189 db: &'a D, 188 db: &'a D,
189 owner: DefWithBody,
190 body: Arc<Body>, 190 body: Arc<Body>,
191 resolver: Resolver, 191 resolver: Resolver,
192 var_unification_table: InPlaceUnificationTable<TypeVarId>, 192 var_unification_table: InPlaceUnificationTable<TypeVarId>,
@@ -204,7 +204,7 @@ struct InferenceContext<'a, D: HirDatabase> {
204} 204}
205 205
206impl<'a, D: HirDatabase> InferenceContext<'a, D> { 206impl<'a, D: HirDatabase> InferenceContext<'a, D> {
207 fn new(db: &'a D, body: Arc<Body>, resolver: Resolver) -> Self { 207 fn new(db: &'a D, owner: DefWithBody, resolver: Resolver) -> Self {
208 InferenceContext { 208 InferenceContext {
209 result: InferenceResult::default(), 209 result: InferenceResult::default(),
210 var_unification_table: InPlaceUnificationTable::new(), 210 var_unification_table: InPlaceUnificationTable::new(),
@@ -213,7 +213,8 @@ impl<'a, D: HirDatabase> InferenceContext<'a, D> {
213 trait_env: lower::trait_env(db, &resolver), 213 trait_env: lower::trait_env(db, &resolver),
214 coerce_unsized_map: Self::init_coerce_unsized_map(db, &resolver), 214 coerce_unsized_map: Self::init_coerce_unsized_map(db, &resolver),
215 db, 215 db,
216 body, 216 owner,
217 body: db.body(owner),
217 resolver, 218 resolver,
218 } 219 }
219 } 220 }
diff --git a/crates/ra_hir/src/ty/infer/expr.rs b/crates/ra_hir/src/ty/infer/expr.rs
index 4af1d65ee..c6802487a 100644
--- a/crates/ra_hir/src/ty/infer/expr.rs
+++ b/crates/ra_hir/src/ty/infer/expr.rs
@@ -130,10 +130,8 @@ impl<'a, D: HirDatabase> InferenceContext<'a, D> {
130 TypeCtor::FnPtr { num_args: sig_tys.len() as u16 - 1 }, 130 TypeCtor::FnPtr { num_args: sig_tys.len() as u16 - 1 },
131 Substs(sig_tys.into()), 131 Substs(sig_tys.into()),
132 ); 132 );
133 let closure_ty = Ty::apply_one( 133 let closure_ty =
134 TypeCtor::Closure { def: self.body.owner(), expr: tgt_expr }, 134 Ty::apply_one(TypeCtor::Closure { def: self.owner, expr: tgt_expr }, sig_ty);
135 sig_ty,
136 );
137 135
138 // Eagerly try to relate the closure type with the expected 136 // Eagerly try to relate the closure type with the expected
139 // type, otherwise we often won't have enough information to 137 // type, otherwise we often won't have enough information to
@@ -184,7 +182,7 @@ impl<'a, D: HirDatabase> InferenceContext<'a, D> {
184 } 182 }
185 Expr::Path(p) => { 183 Expr::Path(p) => {
186 // FIXME this could be more efficient... 184 // FIXME this could be more efficient...
187 let resolver = expr::resolver_for_expr(self.body.clone(), self.db, tgt_expr); 185 let resolver = expr::resolver_for_expr(self.db, self.owner, tgt_expr);
188 self.infer_path(&resolver, p, tgt_expr.into()).unwrap_or(Ty::Unknown) 186 self.infer_path(&resolver, p, tgt_expr.into()).unwrap_or(Ty::Unknown)
189 } 187 }
190 Expr::Continue => Ty::simple(TypeCtor::Never), 188 Expr::Continue => Ty::simple(TypeCtor::Never),
@@ -452,8 +450,8 @@ impl<'a, D: HirDatabase> InferenceContext<'a, D> {
452 Ty::apply_one(TypeCtor::Ref(Mutability::Shared), slice_type) 450 Ty::apply_one(TypeCtor::Ref(Mutability::Shared), slice_type)
453 } 451 }
454 Literal::Char(..) => Ty::simple(TypeCtor::Char), 452 Literal::Char(..) => Ty::simple(TypeCtor::Char),
455 Literal::Int(_v, ty) => Ty::simple(TypeCtor::Int(*ty)), 453 Literal::Int(_v, ty) => Ty::simple(TypeCtor::Int((*ty).into())),
456 Literal::Float(_v, ty) => Ty::simple(TypeCtor::Float(*ty)), 454 Literal::Float(_v, ty) => Ty::simple(TypeCtor::Float((*ty).into())),
457 }, 455 },
458 }; 456 };
459 // use a new type variable if we got Ty::Unknown here 457 // use a new type variable if we got Ty::Unknown here
diff --git a/crates/ra_hir/src/ty/lower.rs b/crates/ra_hir/src/ty/lower.rs
index 1fed5025e..1832fcf50 100644
--- a/crates/ra_hir/src/ty/lower.rs
+++ b/crates/ra_hir/src/ty/lower.rs
@@ -9,7 +9,7 @@ use std::iter;
9use std::sync::Arc; 9use std::sync::Arc;
10 10
11use hir_def::{ 11use hir_def::{
12 builtin_type::BuiltinType, 12 builtin_type::{BuiltinFloat, BuiltinInt, BuiltinType},
13 path::{GenericArg, PathSegment}, 13 path::{GenericArg, PathSegment},
14 type_ref::{TypeBound, TypeRef}, 14 type_ref::{TypeBound, TypeRef},
15}; 15};
@@ -25,7 +25,7 @@ use crate::{
25 generics::{GenericDef, WherePredicate}, 25 generics::{GenericDef, WherePredicate},
26 resolve::{Resolver, TypeNs}, 26 resolve::{Resolver, TypeNs},
27 ty::{ 27 ty::{
28 primitive::{FloatTy, IntTy}, 28 primitive::{FloatTy, IntTy, UncertainFloatTy, UncertainIntTy},
29 Adt, 29 Adt,
30 }, 30 },
31 util::make_mut_slice, 31 util::make_mut_slice,
@@ -657,13 +657,41 @@ fn type_for_builtin(def: BuiltinType) -> Ty {
657 BuiltinType::Char => TypeCtor::Char, 657 BuiltinType::Char => TypeCtor::Char,
658 BuiltinType::Bool => TypeCtor::Bool, 658 BuiltinType::Bool => TypeCtor::Bool,
659 BuiltinType::Str => TypeCtor::Str, 659 BuiltinType::Str => TypeCtor::Str,
660 BuiltinType::Int { signedness, bitness } => { 660 BuiltinType::Int(t) => TypeCtor::Int(IntTy::from(t).into()),
661 TypeCtor::Int(IntTy { signedness, bitness }.into()) 661 BuiltinType::Float(t) => TypeCtor::Float(FloatTy::from(t).into()),
662 }
663 BuiltinType::Float { bitness } => TypeCtor::Float(FloatTy { bitness }.into()),
664 }) 662 })
665} 663}
666 664
665impl From<BuiltinInt> for IntTy {
666 fn from(t: BuiltinInt) -> Self {
667 IntTy { signedness: t.signedness, bitness: t.bitness }
668 }
669}
670
671impl From<BuiltinFloat> for FloatTy {
672 fn from(t: BuiltinFloat) -> Self {
673 FloatTy { bitness: t.bitness }
674 }
675}
676
677impl From<Option<BuiltinInt>> for UncertainIntTy {
678 fn from(t: Option<BuiltinInt>) -> Self {
679 match t {
680 None => UncertainIntTy::Unknown,
681 Some(t) => UncertainIntTy::Known(t.into()),
682 }
683 }
684}
685
686impl From<Option<BuiltinFloat>> for UncertainFloatTy {
687 fn from(t: Option<BuiltinFloat>) -> Self {
688 match t {
689 None => UncertainFloatTy::Unknown,
690 Some(t) => UncertainFloatTy::Known(t.into()),
691 }
692 }
693}
694
667fn fn_sig_for_struct_constructor(db: &impl HirDatabase, def: Struct) -> FnSig { 695fn fn_sig_for_struct_constructor(db: &impl HirDatabase, def: Struct) -> FnSig {
668 let struct_data = db.struct_data(def.id.into()); 696 let struct_data = db.struct_data(def.id.into());
669 let fields = match struct_data.variant_data.fields() { 697 let fields = match struct_data.variant_data.fields() {
diff --git a/crates/ra_hir/src/ty/primitive.rs b/crates/ra_hir/src/ty/primitive.rs
index 1749752f1..7362de4c3 100644
--- a/crates/ra_hir/src/ty/primitive.rs
+++ b/crates/ra_hir/src/ty/primitive.rs
@@ -129,24 +129,6 @@ impl IntTy {
129 (Signedness::Unsigned, IntBitness::X128) => "u128", 129 (Signedness::Unsigned, IntBitness::X128) => "u128",
130 } 130 }
131 } 131 }
132
133 pub(crate) fn from_suffix(suffix: &str) -> Option<IntTy> {
134 match suffix {
135 "isize" => Some(IntTy::isize()),
136 "i8" => Some(IntTy::i8()),
137 "i16" => Some(IntTy::i16()),
138 "i32" => Some(IntTy::i32()),
139 "i64" => Some(IntTy::i64()),
140 "i128" => Some(IntTy::i128()),
141 "usize" => Some(IntTy::usize()),
142 "u8" => Some(IntTy::u8()),
143 "u16" => Some(IntTy::u16()),
144 "u32" => Some(IntTy::u32()),
145 "u64" => Some(IntTy::u64()),
146 "u128" => Some(IntTy::u128()),
147 _ => None,
148 }
149 }
150} 132}
151 133
152#[derive(Copy, Clone, PartialEq, Eq, Hash)] 134#[derive(Copy, Clone, PartialEq, Eq, Hash)]
@@ -181,12 +163,4 @@ impl FloatTy {
181 FloatBitness::X64 => "f64", 163 FloatBitness::X64 => "f64",
182 } 164 }
183 } 165 }
184
185 pub(crate) fn from_suffix(suffix: &str) -> Option<FloatTy> {
186 match suffix {
187 "f32" => Some(FloatTy::f32()),
188 "f64" => Some(FloatTy::f64()),
189 _ => None,
190 }
191 }
192} 166}
diff --git a/crates/ra_hir/src/ty/tests.rs b/crates/ra_hir/src/ty/tests.rs
index 896bf2924..8863c3608 100644
--- a/crates/ra_hir/src/ty/tests.rs
+++ b/crates/ra_hir/src/ty/tests.rs
@@ -222,7 +222,6 @@ mod collections {
222 222
223#[test] 223#[test]
224fn infer_while_let() { 224fn infer_while_let() {
225 covers!(infer_while_let);
226 let (db, pos) = TestDB::with_position( 225 let (db, pos) = TestDB::with_position(
227 r#" 226 r#"
228//- /main.rs 227//- /main.rs
@@ -4825,7 +4824,7 @@ fn main() {
4825 @r###" 4824 @r###"
4826 ![0; 1) '6': i32 4825 ![0; 1) '6': i32
4827 [64; 88) '{ ...!(); }': () 4826 [64; 88) '{ ...!(); }': ()
4828 [74; 75) 'x': i32 4827 [74; 75) 'x': i32
4829 "### 4828 "###
4830 ); 4829 );
4831} 4830}
diff --git a/crates/ra_hir/src/ty/traits/chalk.rs b/crates/ra_hir/src/ty/traits/chalk.rs
index 14c54b9fb..de322dd52 100644
--- a/crates/ra_hir/src/ty/traits/chalk.rs
+++ b/crates/ra_hir/src/ty/traits/chalk.rs
@@ -714,7 +714,7 @@ fn closure_fn_trait_impl_datum(
714 let fn_once_trait = get_fn_trait(db, krate, super::FnTrait::FnOnce)?; 714 let fn_once_trait = get_fn_trait(db, krate, super::FnTrait::FnOnce)?;
715 let trait_ = get_fn_trait(db, krate, data.fn_trait)?; // get corresponding fn trait 715 let trait_ = get_fn_trait(db, krate, data.fn_trait)?; // get corresponding fn trait
716 716
717 let num_args: u16 = match &db.body_hir(data.def)[data.expr] { 717 let num_args: u16 = match &db.body(data.def)[data.expr] {
718 crate::expr::Expr::Lambda { args, .. } => args.len() as u16, 718 crate::expr::Expr::Lambda { args, .. } => args.len() as u16,
719 _ => { 719 _ => {
720 log::warn!("closure for closure type {:?} not found", data); 720 log::warn!("closure for closure type {:?} not found", data);
diff --git a/crates/ra_hir_def/src/body.rs b/crates/ra_hir_def/src/body.rs
new file mode 100644
index 000000000..ac8f8261b
--- /dev/null
+++ b/crates/ra_hir_def/src/body.rs
@@ -0,0 +1,144 @@
1//! FIXME: write short doc here
2mod lower;
3
4use std::{ops::Index, sync::Arc};
5
6use hir_expand::{either::Either, HirFileId, MacroDefId, Source};
7use ra_arena::{map::ArenaMap, Arena};
8use ra_syntax::{ast, AstPtr};
9use rustc_hash::FxHashMap;
10
11use crate::{
12 db::DefDatabase2,
13 expr::{Expr, ExprId, Pat, PatId},
14 nameres::CrateDefMap,
15 path::Path,
16 ModuleId,
17};
18
19pub struct MacroResolver {
20 crate_def_map: Arc<CrateDefMap>,
21 module: ModuleId,
22}
23
24impl MacroResolver {
25 pub fn new(db: &impl DefDatabase2, module: ModuleId) -> MacroResolver {
26 MacroResolver { crate_def_map: db.crate_def_map(module.krate), module }
27 }
28
29 pub(crate) fn resolve_path_as_macro(
30 &self,
31 db: &impl DefDatabase2,
32 path: &Path,
33 ) -> Option<MacroDefId> {
34 self.crate_def_map.resolve_path(db, self.module.module_id, path).0.get_macros()
35 }
36}
37
38/// The body of an item (function, const etc.).
39#[derive(Debug, Eq, PartialEq)]
40pub struct Body {
41 exprs: Arena<ExprId, Expr>,
42 pats: Arena<PatId, Pat>,
43 /// The patterns for the function's parameters. While the parameter types are
44 /// part of the function signature, the patterns are not (they don't change
45 /// the external type of the function).
46 ///
47 /// If this `Body` is for the body of a constant, this will just be
48 /// empty.
49 params: Vec<PatId>,
50 /// The `ExprId` of the actual body expression.
51 body_expr: ExprId,
52}
53
54pub type ExprPtr = Either<AstPtr<ast::Expr>, AstPtr<ast::RecordField>>;
55pub type ExprSource = Source<ExprPtr>;
56
57pub type PatPtr = Either<AstPtr<ast::Pat>, AstPtr<ast::SelfParam>>;
58pub type PatSource = Source<PatPtr>;
59
60/// An item body together with the mapping from syntax nodes to HIR expression
61/// IDs. This is needed to go from e.g. a position in a file to the HIR
62/// expression containing it; but for type inference etc., we want to operate on
63/// a structure that is agnostic to the actual positions of expressions in the
64/// file, so that we don't recompute types whenever some whitespace is typed.
65///
66/// One complication here is that, due to macro expansion, a single `Body` might
67/// be spread across several files. So, for each ExprId and PatId, we record
68/// both the HirFileId and the position inside the file. However, we only store
69/// AST -> ExprId mapping for non-macro files, as it is not clear how to handle
70/// this properly for macros.
71#[derive(Default, Debug, Eq, PartialEq)]
72pub struct BodySourceMap {
73 expr_map: FxHashMap<ExprPtr, ExprId>,
74 expr_map_back: ArenaMap<ExprId, ExprSource>,
75 pat_map: FxHashMap<PatPtr, PatId>,
76 pat_map_back: ArenaMap<PatId, PatSource>,
77 field_map: FxHashMap<(ExprId, usize), AstPtr<ast::RecordField>>,
78}
79
80impl Body {
81 pub fn new(
82 db: &impl DefDatabase2,
83 resolver: MacroResolver,
84 file_id: HirFileId,
85 params: Option<ast::ParamList>,
86 body: Option<ast::Expr>,
87 ) -> (Body, BodySourceMap) {
88 lower::lower(db, resolver, file_id, params, body)
89 }
90
91 pub fn params(&self) -> &[PatId] {
92 &self.params
93 }
94
95 pub fn body_expr(&self) -> ExprId {
96 self.body_expr
97 }
98
99 pub fn exprs(&self) -> impl Iterator<Item = (ExprId, &Expr)> {
100 self.exprs.iter()
101 }
102
103 pub fn pats(&self) -> impl Iterator<Item = (PatId, &Pat)> {
104 self.pats.iter()
105 }
106}
107
108impl Index<ExprId> for Body {
109 type Output = Expr;
110
111 fn index(&self, expr: ExprId) -> &Expr {
112 &self.exprs[expr]
113 }
114}
115
116impl Index<PatId> for Body {
117 type Output = Pat;
118
119 fn index(&self, pat: PatId) -> &Pat {
120 &self.pats[pat]
121 }
122}
123
124impl BodySourceMap {
125 pub fn expr_syntax(&self, expr: ExprId) -> Option<ExprSource> {
126 self.expr_map_back.get(expr).copied()
127 }
128
129 pub fn node_expr(&self, node: &ast::Expr) -> Option<ExprId> {
130 self.expr_map.get(&Either::A(AstPtr::new(node))).cloned()
131 }
132
133 pub fn pat_syntax(&self, pat: PatId) -> Option<PatSource> {
134 self.pat_map_back.get(pat).copied()
135 }
136
137 pub fn node_pat(&self, node: &ast::Pat) -> Option<PatId> {
138 self.pat_map.get(&Either::A(AstPtr::new(node))).cloned()
139 }
140
141 pub fn field_syntax(&self, expr: ExprId, field: usize) -> AstPtr<ast::RecordField> {
142 self.field_map[&(expr, field)]
143 }
144}
diff --git a/crates/ra_hir/src/expr/lower.rs b/crates/ra_hir_def/src/body/lower.rs
index 6463dd65e..2aa863c9e 100644
--- a/crates/ra_hir/src/expr/lower.rs
+++ b/crates/ra_hir_def/src/body/lower.rs
@@ -1,9 +1,10 @@
1//! FIXME: write short doc here 1//! FIXME: write short doc here
2 2
3use hir_def::{path::GenericArgs, type_ref::TypeRef};
4use hir_expand::{ 3use hir_expand::{
4 either::Either,
5 hygiene::Hygiene, 5 hygiene::Hygiene,
6 name::{self, AsName, Name}, 6 name::{self, AsName, Name},
7 AstId, HirFileId, MacroCallLoc, MacroFileKind, Source,
7}; 8};
8use ra_arena::Arena; 9use ra_arena::Arena;
9use ra_syntax::{ 10use ra_syntax::{
@@ -13,25 +14,24 @@ use ra_syntax::{
13 }, 14 },
14 AstNode, AstPtr, 15 AstNode, AstPtr,
15}; 16};
16use test_utils::tested_by;
17 17
18use crate::{ 18use crate::{
19 db::HirDatabase, 19 body::{Body, BodySourceMap, MacroResolver, PatPtr},
20 ty::primitive::{FloatTy, IntTy, UncertainFloatTy, UncertainIntTy}, 20 builtin_type::{BuiltinFloat, BuiltinInt},
21 AstId, DefWithBody, Either, HirFileId, MacroCallLoc, MacroFileKind, Mutability, Path, Resolver, 21 db::DefDatabase2,
22 Source, 22 expr::{
23}; 23 ArithOp, Array, BinaryOp, BindingAnnotation, CmpOp, Expr, ExprId, Literal, LogicOp,
24 24 MatchArm, Ordering, Pat, PatId, RecordFieldPat, RecordLitField, Statement,
25use super::{ 25 },
26 ArithOp, Array, BinaryOp, BindingAnnotation, Body, BodySourceMap, CmpOp, Expr, ExprId, Literal, 26 path::GenericArgs,
27 LogicOp, MatchArm, Ordering, Pat, PatId, PatPtr, RecordFieldPat, RecordLitField, Statement, 27 path::Path,
28 type_ref::{Mutability, TypeRef},
28}; 29};
29 30
30pub(super) fn lower( 31pub(super) fn lower(
31 db: &impl HirDatabase, 32 db: &impl DefDatabase2,
32 resolver: Resolver, 33 resolver: MacroResolver,
33 file_id: HirFileId, 34 file_id: HirFileId,
34 owner: DefWithBody,
35 params: Option<ast::ParamList>, 35 params: Option<ast::ParamList>,
36 body: Option<ast::Expr>, 36 body: Option<ast::Expr>,
37) -> (Body, BodySourceMap) { 37) -> (Body, BodySourceMap) {
@@ -42,11 +42,10 @@ pub(super) fn lower(
42 current_file_id: file_id, 42 current_file_id: file_id,
43 source_map: BodySourceMap::default(), 43 source_map: BodySourceMap::default(),
44 body: Body { 44 body: Body {
45 owner,
46 exprs: Arena::default(), 45 exprs: Arena::default(),
47 pats: Arena::default(), 46 pats: Arena::default(),
48 params: Vec::new(), 47 params: Vec::new(),
49 body_expr: ExprId((!0).into()), 48 body_expr: ExprId::dummy(),
50 }, 49 },
51 } 50 }
52 .collect(params, body) 51 .collect(params, body)
@@ -54,11 +53,7 @@ pub(super) fn lower(
54 53
55struct ExprCollector<DB> { 54struct ExprCollector<DB> {
56 db: DB, 55 db: DB,
57 resolver: Resolver, 56 resolver: MacroResolver,
58 // Expr collector expands macros along the way. original points to the file
59 // we started with, current points to the current macro expansion. source
60 // maps don't support macros yet, so we only record info into source map if
61 // current == original (see #1196)
62 original_file_id: HirFileId, 57 original_file_id: HirFileId,
63 current_file_id: HirFileId, 58 current_file_id: HirFileId,
64 59
@@ -68,7 +63,7 @@ struct ExprCollector<DB> {
68 63
69impl<'a, DB> ExprCollector<&'a DB> 64impl<'a, DB> ExprCollector<&'a DB>
70where 65where
71 DB: HirDatabase, 66 DB: DefDatabase2,
72{ 67{
73 fn collect( 68 fn collect(
74 mut self, 69 mut self,
@@ -209,7 +204,6 @@ where
209 None => self.collect_expr_opt(condition.expr()), 204 None => self.collect_expr_opt(condition.expr()),
210 // if let -- desugar to match 205 // if let -- desugar to match
211 Some(pat) => { 206 Some(pat) => {
212 tested_by!(infer_while_let);
213 let pat = self.collect_pat(pat); 207 let pat = self.collect_pat(pat);
214 let match_expr = self.collect_expr_opt(condition.expr()); 208 let match_expr = self.collect_expr_opt(condition.expr());
215 let placeholder_pat = self.missing_pat(); 209 let placeholder_pat = self.missing_pat();
@@ -423,28 +417,18 @@ where
423 ast::Expr::Literal(e) => { 417 ast::Expr::Literal(e) => {
424 let lit = match e.kind() { 418 let lit = match e.kind() {
425 LiteralKind::IntNumber { suffix } => { 419 LiteralKind::IntNumber { suffix } => {
426 let known_name = suffix 420 let known_name = suffix.and_then(|it| BuiltinInt::from_suffix(&it));
427 .and_then(|it| IntTy::from_suffix(&it).map(UncertainIntTy::Known));
428 421
429 Literal::Int( 422 Literal::Int(Default::default(), known_name)
430 Default::default(),
431 known_name.unwrap_or(UncertainIntTy::Unknown),
432 )
433 } 423 }
434 LiteralKind::FloatNumber { suffix } => { 424 LiteralKind::FloatNumber { suffix } => {
435 let known_name = suffix 425 let known_name = suffix.and_then(|it| BuiltinFloat::from_suffix(&it));
436 .and_then(|it| FloatTy::from_suffix(&it).map(UncertainFloatTy::Known));
437 426
438 Literal::Float( 427 Literal::Float(Default::default(), known_name)
439 Default::default(),
440 known_name.unwrap_or(UncertainFloatTy::Unknown),
441 )
442 } 428 }
443 LiteralKind::ByteString => Literal::ByteString(Default::default()), 429 LiteralKind::ByteString => Literal::ByteString(Default::default()),
444 LiteralKind::String => Literal::String(Default::default()), 430 LiteralKind::String => Literal::String(Default::default()),
445 LiteralKind::Byte => { 431 LiteralKind::Byte => Literal::Int(Default::default(), Some(BuiltinInt::U8)),
446 Literal::Int(Default::default(), UncertainIntTy::Known(IntTy::u8()))
447 }
448 LiteralKind::Bool => Literal::Bool(Default::default()), 432 LiteralKind::Bool => Literal::Bool(Default::default()),
449 LiteralKind::Char => Literal::Char(Default::default()), 433 LiteralKind::Char => Literal::Char(Default::default()),
450 }; 434 };
@@ -467,7 +451,7 @@ where
467 451
468 if let Some(path) = e.path().and_then(|path| self.parse_path(path)) { 452 if let Some(path) = e.path().and_then(|path| self.parse_path(path)) {
469 if let Some(def) = self.resolver.resolve_path_as_macro(self.db, &path) { 453 if let Some(def) = self.resolver.resolve_path_as_macro(self.db, &path) {
470 let call_id = self.db.intern_macro(MacroCallLoc { def: def.id, ast_id }); 454 let call_id = self.db.intern_macro(MacroCallLoc { def, ast_id });
471 let file_id = call_id.as_file(MacroFileKind::Expr); 455 let file_id = call_id.as_file(MacroFileKind::Expr);
472 if let Some(node) = self.db.parse_or_expand(file_id) { 456 if let Some(node) = self.db.parse_or_expand(file_id) {
473 if let Some(expr) = ast::Expr::cast(node) { 457 if let Some(expr) = ast::Expr::cast(node) {
diff --git a/crates/ra_hir_def/src/builtin_type.rs b/crates/ra_hir_def/src/builtin_type.rs
index 2ec0c83fe..5e8157144 100644
--- a/crates/ra_hir_def/src/builtin_type.rs
+++ b/crates/ra_hir_def/src/builtin_type.rs
@@ -30,12 +30,23 @@ pub enum FloatBitness {
30} 30}
31 31
32#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)] 32#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)]
33pub struct BuiltinInt {
34 pub signedness: Signedness,
35 pub bitness: IntBitness,
36}
37
38#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)]
39pub struct BuiltinFloat {
40 pub bitness: FloatBitness,
41}
42
43#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)]
33pub enum BuiltinType { 44pub enum BuiltinType {
34 Char, 45 Char,
35 Bool, 46 Bool,
36 Str, 47 Str,
37 Int { signedness: Signedness, bitness: IntBitness }, 48 Int(BuiltinInt),
38 Float { bitness: FloatBitness }, 49 Float(BuiltinFloat),
39} 50}
40 51
41impl BuiltinType { 52impl BuiltinType {
@@ -45,22 +56,22 @@ impl BuiltinType {
45 (name::BOOL, BuiltinType::Bool), 56 (name::BOOL, BuiltinType::Bool),
46 (name::STR, BuiltinType::Str ), 57 (name::STR, BuiltinType::Str ),
47 58
48 (name::ISIZE, BuiltinType::Int { signedness: Signedness::Signed, bitness: IntBitness::Xsize }), 59 (name::ISIZE, BuiltinType::Int(BuiltinInt::ISIZE)),
49 (name::I8, BuiltinType::Int { signedness: Signedness::Signed, bitness: IntBitness::X8 }), 60 (name::I8, BuiltinType::Int(BuiltinInt::I8)),
50 (name::I16, BuiltinType::Int { signedness: Signedness::Signed, bitness: IntBitness::X16 }), 61 (name::I16, BuiltinType::Int(BuiltinInt::I16)),
51 (name::I32, BuiltinType::Int { signedness: Signedness::Signed, bitness: IntBitness::X32 }), 62 (name::I32, BuiltinType::Int(BuiltinInt::I32)),
52 (name::I64, BuiltinType::Int { signedness: Signedness::Signed, bitness: IntBitness::X64 }), 63 (name::I64, BuiltinType::Int(BuiltinInt::I64)),
53 (name::I128, BuiltinType::Int { signedness: Signedness::Signed, bitness: IntBitness::X128 }), 64 (name::I128, BuiltinType::Int(BuiltinInt::I128)),
54 65
55 (name::USIZE, BuiltinType::Int { signedness: Signedness::Unsigned, bitness: IntBitness::Xsize }), 66 (name::USIZE, BuiltinType::Int(BuiltinInt::USIZE)),
56 (name::U8, BuiltinType::Int { signedness: Signedness::Unsigned, bitness: IntBitness::X8 }), 67 (name::U8, BuiltinType::Int(BuiltinInt::U8)),
57 (name::U16, BuiltinType::Int { signedness: Signedness::Unsigned, bitness: IntBitness::X16 }), 68 (name::U16, BuiltinType::Int(BuiltinInt::U16)),
58 (name::U32, BuiltinType::Int { signedness: Signedness::Unsigned, bitness: IntBitness::X32 }), 69 (name::U32, BuiltinType::Int(BuiltinInt::U32)),
59 (name::U64, BuiltinType::Int { signedness: Signedness::Unsigned, bitness: IntBitness::X64 }), 70 (name::U64, BuiltinType::Int(BuiltinInt::U64)),
60 (name::U128, BuiltinType::Int { signedness: Signedness::Unsigned, bitness: IntBitness::X128 }), 71 (name::U128, BuiltinType::Int(BuiltinInt::U128)),
61 72
62 (name::F32, BuiltinType::Float { bitness: FloatBitness::X32 }), 73 (name::F32, BuiltinType::Float(BuiltinFloat::F32)),
63 (name::F64, BuiltinType::Float { bitness: FloatBitness::X64 }), 74 (name::F64, BuiltinType::Float(BuiltinFloat::F64)),
64 ]; 75 ];
65} 76}
66 77
@@ -70,7 +81,7 @@ impl fmt::Display for BuiltinType {
70 BuiltinType::Char => "char", 81 BuiltinType::Char => "char",
71 BuiltinType::Bool => "bool", 82 BuiltinType::Bool => "bool",
72 BuiltinType::Str => "str", 83 BuiltinType::Str => "str",
73 BuiltinType::Int { signedness, bitness } => match (signedness, bitness) { 84 BuiltinType::Int(BuiltinInt { signedness, bitness }) => match (signedness, bitness) {
74 (Signedness::Signed, IntBitness::Xsize) => "isize", 85 (Signedness::Signed, IntBitness::Xsize) => "isize",
75 (Signedness::Signed, IntBitness::X8) => "i8", 86 (Signedness::Signed, IntBitness::X8) => "i8",
76 (Signedness::Signed, IntBitness::X16) => "i16", 87 (Signedness::Signed, IntBitness::X16) => "i16",
@@ -85,7 +96,7 @@ impl fmt::Display for BuiltinType {
85 (Signedness::Unsigned, IntBitness::X64) => "u64", 96 (Signedness::Unsigned, IntBitness::X64) => "u64",
86 (Signedness::Unsigned, IntBitness::X128) => "u128", 97 (Signedness::Unsigned, IntBitness::X128) => "u128",
87 }, 98 },
88 BuiltinType::Float { bitness } => match bitness { 99 BuiltinType::Float(BuiltinFloat { bitness }) => match bitness {
89 FloatBitness::X32 => "f32", 100 FloatBitness::X32 => "f32",
90 FloatBitness::X64 => "f64", 101 FloatBitness::X64 => "f64",
91 }, 102 },
@@ -93,3 +104,57 @@ impl fmt::Display for BuiltinType {
93 f.write_str(type_name) 104 f.write_str(type_name)
94 } 105 }
95} 106}
107
108#[rustfmt::skip]
109impl BuiltinInt {
110 pub const ISIZE: BuiltinInt = BuiltinInt { signedness: Signedness::Signed, bitness: IntBitness::Xsize };
111 pub const I8 : BuiltinInt = BuiltinInt { signedness: Signedness::Signed, bitness: IntBitness::X8 };
112 pub const I16 : BuiltinInt = BuiltinInt { signedness: Signedness::Signed, bitness: IntBitness::X16 };
113 pub const I32 : BuiltinInt = BuiltinInt { signedness: Signedness::Signed, bitness: IntBitness::X32 };
114 pub const I64 : BuiltinInt = BuiltinInt { signedness: Signedness::Signed, bitness: IntBitness::X64 };
115 pub const I128 : BuiltinInt = BuiltinInt { signedness: Signedness::Signed, bitness: IntBitness::X128 };
116
117 pub const USIZE: BuiltinInt = BuiltinInt { signedness: Signedness::Unsigned, bitness: IntBitness::Xsize };
118 pub const U8 : BuiltinInt = BuiltinInt { signedness: Signedness::Unsigned, bitness: IntBitness::X8 };
119 pub const U16 : BuiltinInt = BuiltinInt { signedness: Signedness::Unsigned, bitness: IntBitness::X16 };
120 pub const U32 : BuiltinInt = BuiltinInt { signedness: Signedness::Unsigned, bitness: IntBitness::X32 };
121 pub const U64 : BuiltinInt = BuiltinInt { signedness: Signedness::Unsigned, bitness: IntBitness::X64 };
122 pub const U128 : BuiltinInt = BuiltinInt { signedness: Signedness::Unsigned, bitness: IntBitness::X128 };
123
124
125 pub fn from_suffix(suffix: &str) -> Option<BuiltinInt> {
126 let res = match suffix {
127 "isize" => Self::ISIZE,
128 "i8" => Self::I8,
129 "i16" => Self::I16,
130 "i32" => Self::I32,
131 "i64" => Self::I64,
132 "i128" => Self::I128,
133
134 "usize" => Self::USIZE,
135 "u8" => Self::U8,
136 "u16" => Self::U16,
137 "u32" => Self::U32,
138 "u64" => Self::U64,
139 "u128" => Self::U128,
140
141 _ => return None,
142 };
143 Some(res)
144 }
145}
146
147#[rustfmt::skip]
148impl BuiltinFloat {
149 pub const F32: BuiltinFloat = BuiltinFloat { bitness: FloatBitness::X32 };
150 pub const F64: BuiltinFloat = BuiltinFloat { bitness: FloatBitness::X64 };
151
152 pub fn from_suffix(suffix: &str) -> Option<BuiltinFloat> {
153 let res = match suffix {
154 "f32" => BuiltinFloat::F32,
155 "f64" => BuiltinFloat::F64,
156 _ => return None,
157 };
158 Some(res)
159 }
160}
diff --git a/crates/ra_hir_def/src/expr.rs b/crates/ra_hir_def/src/expr.rs
new file mode 100644
index 000000000..04c1d8f69
--- /dev/null
+++ b/crates/ra_hir_def/src/expr.rs
@@ -0,0 +1,421 @@
1//! This module describes hir-level representation of expressions.
2//!
3//! This representaion is:
4//!
5//! 1. Identity-based. Each expression has an `id`, so we can distinguish
6//! between different `1` in `1 + 1`.
7//! 2. Independent of syntax. Though syntactic provenance information can be
8//! attached separately via id-based side map.
9//! 3. Unresolved. Paths are stored as sequences of names, and not as defs the
10//! names refer to.
11//! 4. Desugared. There's no `if let`.
12//!
13//! See also a neighboring `body` module.
14
15use hir_expand::name::Name;
16use ra_arena::{impl_arena_id, RawId};
17
18use crate::{
19 builtin_type::{BuiltinFloat, BuiltinInt},
20 path::{GenericArgs, Path},
21 type_ref::{Mutability, TypeRef},
22};
23
24#[derive(Debug, Clone, Copy, PartialEq, Eq, PartialOrd, Ord, Hash)]
25pub struct ExprId(RawId);
26impl_arena_id!(ExprId);
27
28impl ExprId {
29 pub fn dummy() -> ExprId {
30 ExprId((!0).into())
31 }
32}
33
34#[derive(Debug, Clone, Copy, PartialEq, Eq, PartialOrd, Ord, Hash)]
35pub struct PatId(RawId);
36impl_arena_id!(PatId);
37
38#[derive(Debug, Clone, Eq, PartialEq)]
39pub enum Literal {
40 String(String),
41 ByteString(Vec<u8>),
42 Char(char),
43 Bool(bool),
44 Int(u64, Option<BuiltinInt>),
45 Float(u64, Option<BuiltinFloat>), // FIXME: f64 is not Eq
46}
47
48#[derive(Debug, Clone, Eq, PartialEq)]
49pub enum Expr {
50 /// This is produced if syntax tree does not have a required expression piece.
51 Missing,
52 Path(Path),
53 If {
54 condition: ExprId,
55 then_branch: ExprId,
56 else_branch: Option<ExprId>,
57 },
58 Block {
59 statements: Vec<Statement>,
60 tail: Option<ExprId>,
61 },
62 Loop {
63 body: ExprId,
64 },
65 While {
66 condition: ExprId,
67 body: ExprId,
68 },
69 For {
70 iterable: ExprId,
71 pat: PatId,
72 body: ExprId,
73 },
74 Call {
75 callee: ExprId,
76 args: Vec<ExprId>,
77 },
78 MethodCall {
79 receiver: ExprId,
80 method_name: Name,
81 args: Vec<ExprId>,
82 generic_args: Option<GenericArgs>,
83 },
84 Match {
85 expr: ExprId,
86 arms: Vec<MatchArm>,
87 },
88 Continue,
89 Break {
90 expr: Option<ExprId>,
91 },
92 Return {
93 expr: Option<ExprId>,
94 },
95 RecordLit {
96 path: Option<Path>,
97 fields: Vec<RecordLitField>,
98 spread: Option<ExprId>,
99 },
100 Field {
101 expr: ExprId,
102 name: Name,
103 },
104 Await {
105 expr: ExprId,
106 },
107 Try {
108 expr: ExprId,
109 },
110 TryBlock {
111 body: ExprId,
112 },
113 Cast {
114 expr: ExprId,
115 type_ref: TypeRef,
116 },
117 Ref {
118 expr: ExprId,
119 mutability: Mutability,
120 },
121 Box {
122 expr: ExprId,
123 },
124 UnaryOp {
125 expr: ExprId,
126 op: UnaryOp,
127 },
128 BinaryOp {
129 lhs: ExprId,
130 rhs: ExprId,
131 op: Option<BinaryOp>,
132 },
133 Index {
134 base: ExprId,
135 index: ExprId,
136 },
137 Lambda {
138 args: Vec<PatId>,
139 arg_types: Vec<Option<TypeRef>>,
140 body: ExprId,
141 },
142 Tuple {
143 exprs: Vec<ExprId>,
144 },
145 Array(Array),
146 Literal(Literal),
147}
148
149#[derive(Copy, Clone, Debug, PartialEq, Eq, Hash)]
150pub enum BinaryOp {
151 LogicOp(LogicOp),
152 ArithOp(ArithOp),
153 CmpOp(CmpOp),
154 Assignment { op: Option<ArithOp> },
155}
156
157#[derive(Copy, Clone, Debug, PartialEq, Eq, Hash)]
158pub enum LogicOp {
159 And,
160 Or,
161}
162
163#[derive(Copy, Clone, Debug, PartialEq, Eq, Hash)]
164pub enum CmpOp {
165 Eq { negated: bool },
166 Ord { ordering: Ordering, strict: bool },
167}
168
169#[derive(Copy, Clone, Debug, PartialEq, Eq, Hash)]
170pub enum Ordering {
171 Less,
172 Greater,
173}
174
175#[derive(Copy, Clone, Debug, PartialEq, Eq, Hash)]
176pub enum ArithOp {
177 Add,
178 Mul,
179 Sub,
180 Div,
181 Rem,
182 Shl,
183 Shr,
184 BitXor,
185 BitOr,
186 BitAnd,
187}
188
189pub use ra_syntax::ast::PrefixOp as UnaryOp;
190#[derive(Debug, Clone, Eq, PartialEq)]
191pub enum Array {
192 ElementList(Vec<ExprId>),
193 Repeat { initializer: ExprId, repeat: ExprId },
194}
195
196#[derive(Debug, Clone, Eq, PartialEq)]
197pub struct MatchArm {
198 pub pats: Vec<PatId>,
199 pub guard: Option<ExprId>,
200 pub expr: ExprId,
201}
202
203#[derive(Debug, Clone, Eq, PartialEq)]
204pub struct RecordLitField {
205 pub name: Name,
206 pub expr: ExprId,
207}
208
209#[derive(Debug, Clone, Eq, PartialEq)]
210pub enum Statement {
211 Let { pat: PatId, type_ref: Option<TypeRef>, initializer: Option<ExprId> },
212 Expr(ExprId),
213}
214
215impl Expr {
216 pub fn walk_child_exprs(&self, mut f: impl FnMut(ExprId)) {
217 match self {
218 Expr::Missing => {}
219 Expr::Path(_) => {}
220 Expr::If { condition, then_branch, else_branch } => {
221 f(*condition);
222 f(*then_branch);
223 if let Some(else_branch) = else_branch {
224 f(*else_branch);
225 }
226 }
227 Expr::Block { statements, tail } => {
228 for stmt in statements {
229 match stmt {
230 Statement::Let { initializer, .. } => {
231 if let Some(expr) = initializer {
232 f(*expr);
233 }
234 }
235 Statement::Expr(e) => f(*e),
236 }
237 }
238 if let Some(expr) = tail {
239 f(*expr);
240 }
241 }
242 Expr::TryBlock { body } => f(*body),
243 Expr::Loop { body } => f(*body),
244 Expr::While { condition, body } => {
245 f(*condition);
246 f(*body);
247 }
248 Expr::For { iterable, body, .. } => {
249 f(*iterable);
250 f(*body);
251 }
252 Expr::Call { callee, args } => {
253 f(*callee);
254 for arg in args {
255 f(*arg);
256 }
257 }
258 Expr::MethodCall { receiver, args, .. } => {
259 f(*receiver);
260 for arg in args {
261 f(*arg);
262 }
263 }
264 Expr::Match { expr, arms } => {
265 f(*expr);
266 for arm in arms {
267 f(arm.expr);
268 }
269 }
270 Expr::Continue => {}
271 Expr::Break { expr } | Expr::Return { expr } => {
272 if let Some(expr) = expr {
273 f(*expr);
274 }
275 }
276 Expr::RecordLit { fields, spread, .. } => {
277 for field in fields {
278 f(field.expr);
279 }
280 if let Some(expr) = spread {
281 f(*expr);
282 }
283 }
284 Expr::Lambda { body, .. } => {
285 f(*body);
286 }
287 Expr::BinaryOp { lhs, rhs, .. } => {
288 f(*lhs);
289 f(*rhs);
290 }
291 Expr::Index { base, index } => {
292 f(*base);
293 f(*index);
294 }
295 Expr::Field { expr, .. }
296 | Expr::Await { expr }
297 | Expr::Try { expr }
298 | Expr::Cast { expr, .. }
299 | Expr::Ref { expr, .. }
300 | Expr::UnaryOp { expr, .. }
301 | Expr::Box { expr } => {
302 f(*expr);
303 }
304 Expr::Tuple { exprs } => {
305 for expr in exprs {
306 f(*expr);
307 }
308 }
309 Expr::Array(a) => match a {
310 Array::ElementList(exprs) => {
311 for expr in exprs {
312 f(*expr);
313 }
314 }
315 Array::Repeat { initializer, repeat } => {
316 f(*initializer);
317 f(*repeat)
318 }
319 },
320 Expr::Literal(_) => {}
321 }
322 }
323}
324
325/// Explicit binding annotations given in the HIR for a binding. Note
326/// that this is not the final binding *mode* that we infer after type
327/// inference.
328#[derive(Clone, PartialEq, Eq, Debug, Copy)]
329pub enum BindingAnnotation {
330 /// No binding annotation given: this means that the final binding mode
331 /// will depend on whether we have skipped through a `&` reference
332 /// when matching. For example, the `x` in `Some(x)` will have binding
333 /// mode `None`; if you do `let Some(x) = &Some(22)`, it will
334 /// ultimately be inferred to be by-reference.
335 Unannotated,
336
337 /// Annotated with `mut x` -- could be either ref or not, similar to `None`.
338 Mutable,
339
340 /// Annotated as `ref`, like `ref x`
341 Ref,
342
343 /// Annotated as `ref mut x`.
344 RefMut,
345}
346
347impl BindingAnnotation {
348 pub fn new(is_mutable: bool, is_ref: bool) -> Self {
349 match (is_mutable, is_ref) {
350 (true, true) => BindingAnnotation::RefMut,
351 (false, true) => BindingAnnotation::Ref,
352 (true, false) => BindingAnnotation::Mutable,
353 (false, false) => BindingAnnotation::Unannotated,
354 }
355 }
356}
357
358#[derive(Debug, Clone, Eq, PartialEq)]
359pub struct RecordFieldPat {
360 pub name: Name,
361 pub pat: PatId,
362}
363
364/// Close relative to rustc's hir::PatKind
365#[derive(Debug, Clone, Eq, PartialEq)]
366pub enum Pat {
367 Missing,
368 Wild,
369 Tuple(Vec<PatId>),
370 Record {
371 path: Option<Path>,
372 args: Vec<RecordFieldPat>,
373 // FIXME: 'ellipsis' option
374 },
375 Range {
376 start: ExprId,
377 end: ExprId,
378 },
379 Slice {
380 prefix: Vec<PatId>,
381 rest: Option<PatId>,
382 suffix: Vec<PatId>,
383 },
384 Path(Path),
385 Lit(ExprId),
386 Bind {
387 mode: BindingAnnotation,
388 name: Name,
389 subpat: Option<PatId>,
390 },
391 TupleStruct {
392 path: Option<Path>,
393 args: Vec<PatId>,
394 },
395 Ref {
396 pat: PatId,
397 mutability: Mutability,
398 },
399}
400
401impl Pat {
402 pub fn walk_child_pats(&self, mut f: impl FnMut(PatId)) {
403 match self {
404 Pat::Range { .. } | Pat::Lit(..) | Pat::Path(..) | Pat::Wild | Pat::Missing => {}
405 Pat::Bind { subpat, .. } => {
406 subpat.iter().copied().for_each(f);
407 }
408 Pat::Tuple(args) | Pat::TupleStruct { args, .. } => {
409 args.iter().copied().for_each(f);
410 }
411 Pat::Ref { pat, .. } => f(*pat),
412 Pat::Slice { prefix, rest, suffix } => {
413 let total_iter = prefix.iter().chain(rest.iter()).chain(suffix.iter());
414 total_iter.copied().for_each(f);
415 }
416 Pat::Record { args, .. } => {
417 args.iter().map(|f| f.pat).for_each(f);
418 }
419 }
420 }
421}
diff --git a/crates/ra_hir_def/src/lib.rs b/crates/ra_hir_def/src/lib.rs
index 239317efe..4a758bb83 100644
--- a/crates/ra_hir_def/src/lib.rs
+++ b/crates/ra_hir_def/src/lib.rs
@@ -14,6 +14,8 @@ pub mod type_ref;
14pub mod builtin_type; 14pub mod builtin_type;
15pub mod adt; 15pub mod adt;
16pub mod diagnostics; 16pub mod diagnostics;
17pub mod expr;
18pub mod body;
17 19
18#[cfg(test)] 20#[cfg(test)]
19mod test_db; 21mod test_db;
diff --git a/crates/ra_ide_api/src/change.rs b/crates/ra_ide_api/src/change.rs
index 4416421ae..010b45141 100644
--- a/crates/ra_ide_api/src/change.rs
+++ b/crates/ra_ide_api/src/change.rs
@@ -276,7 +276,7 @@ impl RootDatabase {
276 276
277 self.query(hir::db::ExprScopesQuery).sweep(sweep); 277 self.query(hir::db::ExprScopesQuery).sweep(sweep);
278 self.query(hir::db::InferQuery).sweep(sweep); 278 self.query(hir::db::InferQuery).sweep(sweep);
279 self.query(hir::db::BodyHirQuery).sweep(sweep); 279 self.query(hir::db::BodyQuery).sweep(sweep);
280 } 280 }
281 281
282 pub(crate) fn per_query_memory_usage(&mut self) -> Vec<(String, Bytes)> { 282 pub(crate) fn per_query_memory_usage(&mut self) -> Vec<(String, Bytes)> {
@@ -333,7 +333,7 @@ impl RootDatabase {
333 hir::db::GenericPredicatesQuery 333 hir::db::GenericPredicatesQuery
334 hir::db::GenericDefaultsQuery 334 hir::db::GenericDefaultsQuery
335 hir::db::BodyWithSourceMapQuery 335 hir::db::BodyWithSourceMapQuery
336 hir::db::BodyHirQuery 336 hir::db::BodyQuery
337 hir::db::ImplsInCrateQuery 337 hir::db::ImplsInCrateQuery
338 hir::db::ImplsForTraitQuery 338 hir::db::ImplsForTraitQuery
339 hir::db::AssociatedTyDataQuery 339 hir::db::AssociatedTyDataQuery
diff --git a/crates/ra_project_model/src/cargo_workspace.rs b/crates/ra_project_model/src/cargo_workspace.rs
index 28dadea9d..cf88911b7 100644
--- a/crates/ra_project_model/src/cargo_workspace.rs
+++ b/crates/ra_project_model/src/cargo_workspace.rs
@@ -1,6 +1,7 @@
1//! FIXME: write short doc here 1//! FIXME: write short doc here
2 2
3use std::path::{Path, PathBuf}; 3use std::path::{Path, PathBuf};
4use std::str::FromStr;
4 5
5use cargo_metadata::{CargoOpt, MetadataCommand}; 6use cargo_metadata::{CargoOpt, MetadataCommand};
6use ra_arena::{impl_arena_id, Arena, RawId}; 7use ra_arena::{impl_arena_id, Arena, RawId};
@@ -140,18 +141,21 @@ impl CargoWorkspace {
140 let ws_members = &meta.workspace_members; 141 let ws_members = &meta.workspace_members;
141 142
142 for meta_pkg in meta.packages { 143 for meta_pkg in meta.packages {
143 let is_member = ws_members.contains(&meta_pkg.id); 144 let cargo_metadata::Package { id, edition, name, manifest_path, .. } = meta_pkg;
145 let is_member = ws_members.contains(&id);
146 let edition = Edition::from_str(&edition)
147 .map_err(|e| (format!("metadata for package {} failed: {}", &name, e.msg)))?;
144 let pkg = packages.alloc(PackageData { 148 let pkg = packages.alloc(PackageData {
145 name: meta_pkg.name, 149 name,
146 manifest: meta_pkg.manifest_path.clone(), 150 manifest: manifest_path,
147 targets: Vec::new(), 151 targets: Vec::new(),
148 is_member, 152 is_member,
149 edition: Edition::from_string(&meta_pkg.edition), 153 edition,
150 dependencies: Vec::new(), 154 dependencies: Vec::new(),
151 features: Vec::new(), 155 features: Vec::new(),
152 }); 156 });
153 let pkg_data = &mut packages[pkg]; 157 let pkg_data = &mut packages[pkg];
154 pkg_by_id.insert(meta_pkg.id.clone(), pkg); 158 pkg_by_id.insert(id, pkg);
155 for meta_tgt in meta_pkg.targets { 159 for meta_tgt in meta_pkg.targets {
156 let tgt = targets.alloc(TargetData { 160 let tgt = targets.alloc(TargetData {
157 pkg, 161 pkg,
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-23 12:18:44 +0000