Merge #2469

2469: Replace `ra_hir_expand::either` with crate r=matklad a=ice1000

As title.

Co-authored-by: ice1000 <ice1000kotlin@foxmail.com>

Author: bors[bot]

Cargo.lock

@@ -10,6 +10,7 @@ doctest = false
 [dependencies]
 log = "0.4.5"
 rustc-hash = "1.0"
+either = "1.5"
 
 ra_syntax = { path = "../ra_syntax" }
 ra_db = { path = "../ra_db" }

crates/ra_hir/Cargo.toml

@@ -4,6 +4,7 @@ pub(crate) mod src;
 
 use std::sync::Arc;
 
+use either::Either;
 use hir_def::{
     adt::VariantData,
     body::{Body, BodySourceMap},
@@ -30,7 +31,7 @@ use crate::{
     db::{DefDatabase, HirDatabase},
     ty::display::HirFormatter,
     ty::{self, InEnvironment, InferenceResult, TraitEnvironment, Ty, TyDefId, TypeCtor, TypeWalk},
-    CallableDef, Either, HirDisplay, InFile, Name,
+    CallableDef, HirDisplay, InFile, Name,
 };
 
 /// hir::Crate describes a single crate. It's the main interface with which
@@ -905,7 +906,9 @@ impl Local {
         let (_body, source_map) = db.body_with_source_map(self.parent.into());
         let src = source_map.pat_syntax(self.pat_id).unwrap(); // Hmm...
         let root = src.file_syntax(db);
-        src.map(|ast| ast.map(|it| it.cast().unwrap().to_node(&root), |it| it.to_node(&root)))
+        src.map(|ast| {
+            ast.map_left(|it| it.cast().unwrap().to_node(&root)).map_right(|it| it.to_node(&root))
+        })
     }
 }
 

crates/ra_hir/src/code_model.rs

@@ -1,10 +1,10 @@
 //! FIXME: write short doc here
 
+use either::Either;
 use hir_def::{
     src::{HasChildSource, HasSource as _},
     AstItemDef, Lookup, VariantId,
 };
-use hir_expand::either::Either;
 use ra_syntax::ast;
 
 use crate::{
@@ -27,8 +27,8 @@ impl Module {
         let def_map = db.crate_def_map(self.id.krate);
         let src = def_map[self.id.local_id].definition_source(db);
         src.map(|it| match it {
-            Either::A(it) => ModuleSource::SourceFile(it),
-            Either::B(it) => ModuleSource::Module(it),
+            Either::Left(it) => ModuleSource::SourceFile(it),
+            Either::Right(it) => ModuleSource::Module(it),
         })
     }
 
@@ -46,8 +46,8 @@ impl HasSource for StructField {
         let var = VariantId::from(self.parent);
         let src = var.child_source(db);
         src.map(|it| match it[self.id].clone() {
-            Either::A(it) => FieldSource::Pos(it),
-            Either::B(it) => FieldSource::Named(it),
+            Either::Left(it) => FieldSource::Pos(it),
+            Either::Right(it) => FieldSource::Named(it),
         })
     }
 }
@@ -126,6 +126,6 @@ impl HasSource for Import {
         let (_, source_map) = db.raw_items_with_source_map(src.file_id);
         let root = db.parse_or_expand(src.file_id).unwrap();
         let ptr = source_map.get(self.id);
-        src.with_value(ptr.map(|it| it.to_node(&root), |it| it.to_node(&root)))
+        src.with_value(ptr.map_left(|it| it.to_node(&root)).map_right(|it| it.to_node(&root)))
     }
 }

crates/ra_hir/src/code_model/src.rs

@@ -63,5 +63,5 @@ pub use hir_def::{
     type_ref::Mutability,
 };
 pub use hir_expand::{
-    either::Either, name::Name, HirFileId, InFile, MacroCallId, MacroCallLoc, MacroDefId, MacroFile,
+    name::Name, HirFileId, InFile, MacroCallId, MacroCallLoc, MacroDefId, MacroFile,
 };

crates/ra_hir/src/lib.rs

@@ -7,6 +7,7 @@
 //! purely for "IDE needs".
 use std::sync::Arc;
 
+use either::Either;
 use hir_def::{
     body::{
         scope::{ExprScopes, ScopeId},
@@ -33,8 +34,8 @@ use crate::{
         method_resolution::{self, implements_trait},
         InEnvironment, TraitEnvironment, Ty,
     },
-    Adt, AssocItem, Const, DefWithBody, Either, Enum, EnumVariant, FromSource, Function,
-    GenericParam, Local, MacroDef, Name, Path, ScopeDef, Static, Struct, Trait, Type, TypeAlias,
+    Adt, AssocItem, Const, DefWithBody, Enum, EnumVariant, FromSource, Function, GenericParam,
+    Local, MacroDef, Name, Path, ScopeDef, Static, Struct, Trait, Type, TypeAlias,
 };
 
 fn try_get_resolver_for_node(db: &impl HirDatabase, node: InFile<&SyntaxNode>) -> Option<Resolver> {
@@ -349,7 +350,7 @@ impl SourceAnalyzer {
     // should switch to general reference search infra there.
     pub fn find_all_refs(&self, pat: &ast::BindPat) -> Vec<ReferenceDescriptor> {
         let fn_def = pat.syntax().ancestors().find_map(ast::FnDef::cast).unwrap();
-        let ptr = Either::A(AstPtr::new(&ast::Pat::from(pat.clone())));
+        let ptr = Either::Left(AstPtr::new(&ast::Pat::from(pat.clone())));
         fn_def
             .syntax()
             .descendants()

crates/ra_hir/src/source_binder.rs

@@ -11,6 +11,7 @@ doctest = false
 log = "0.4.5"
 once_cell = "1.0.1"
 rustc-hash = "1.0"
+either = "1.5"
 
 ra_arena = { path = "../ra_arena" }
 ra_db = { path = "../ra_db" }

crates/ra_hir_def/Cargo.toml

@@ -2,8 +2,8 @@
 
 use std::sync::Arc;
 
+use either::Either;
 use hir_expand::{
-    either::Either,
     name::{AsName, Name},
     InFile,
 };
@@ -184,7 +184,7 @@ fn lower_struct(
         ast::StructKind::Tuple(fl) => {
             for (i, fd) in fl.fields().enumerate() {
                 trace.alloc(
-                    || Either::A(fd.clone()),
+                    || Either::Left(fd.clone()),
                     || StructFieldData {
                         name: Name::new_tuple_field(i),
                         type_ref: TypeRef::from_ast_opt(fd.type_ref()),
@@ -196,7 +196,7 @@ fn lower_struct(
         ast::StructKind::Record(fl) => {
             for fd in fl.fields() {
                 trace.alloc(
-                    || Either::B(fd.clone()),
+                    || Either::Right(fd.clone()),
                     || StructFieldData {
                         name: fd.name().map(|n| n.as_name()).unwrap_or_else(Name::missing),
                         type_ref: TypeRef::from_ast_opt(fd.ascribed_type()),

crates/ra_hir_def/src/adt.rs

@@ -2,7 +2,8 @@
 
 use std::{ops, sync::Arc};
 
-use hir_expand::{either::Either, hygiene::Hygiene, AstId, InFile};
+use either::Either;
+use hir_expand::{hygiene::Hygiene, AstId, InFile};
 use mbe::ast_to_token_tree;
 use ra_syntax::{
     ast::{self, AstNode, AttrsOwner},
@@ -45,8 +46,8 @@ impl Attrs {
             AttrDefId::StructFieldId(it) => {
                 let src = it.parent.child_source(db);
                 match &src.value[it.local_id] {
-                    Either::A(_tuple) => Attrs::default(),
-                    Either::B(record) => Attrs::from_attrs_owner(db, src.with_value(record)),
+                    Either::Left(_tuple) => Attrs::default(),
+                    Either::Right(record) => Attrs::from_attrs_owner(db, src.with_value(record)),
                 }
             }
             AttrDefId::EnumVariantId(var_id) => {

crates/ra_hir_def/src/attr.rs

@@ -5,9 +5,8 @@ pub mod scope;
 
 use std::{ops::Index, sync::Arc};
 
-use hir_expand::{
-    either::Either, hygiene::Hygiene, AstId, HirFileId, InFile, MacroDefId, MacroFileKind,
-};
+use either::Either;
+use hir_expand::{hygiene::Hygiene, AstId, HirFileId, InFile, MacroDefId, MacroFileKind};
 use ra_arena::{map::ArenaMap, Arena};
 use ra_syntax::{ast, AstNode, AstPtr};
 use rustc_hash::FxHashMap;
@@ -210,7 +209,7 @@ impl BodySourceMap {
     }
 
     pub fn node_expr(&self, node: InFile<&ast::Expr>) -> Option<ExprId> {
-        let src = node.map(|it| Either::A(AstPtr::new(it)));
+        let src = node.map(|it| Either::Left(AstPtr::new(it)));
         self.expr_map.get(&src).cloned()
     }
 
@@ -219,7 +218,7 @@ impl BodySourceMap {
     }
 
     pub fn node_pat(&self, node: InFile<&ast::Pat>) -> Option<PatId> {
-        let src = node.map(|it| Either::A(AstPtr::new(it)));
+        let src = node.map(|it| Either::Left(AstPtr::new(it)));
         self.pat_map.get(&src).cloned()
     }