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-rw-r--r--crates/ra_hir/src/from_source.rs265
1 files changed, 0 insertions, 265 deletions
diff --git a/crates/ra_hir/src/from_source.rs b/crates/ra_hir/src/from_source.rs
deleted file mode 100644
index 6314be8d4..000000000
--- a/crates/ra_hir/src/from_source.rs
+++ /dev/null
@@ -1,265 +0,0 @@
1//! Finds a corresponding hir data structure for a syntax node in a specific
2//! file.
3
4use hir_def::{
5 child_by_source::ChildBySource, dyn_map::DynMap, keys, keys::Key, nameres::ModuleSource,
6 ConstId, DefWithBodyId, EnumId, EnumVariantId, FunctionId, GenericDefId, ImplId, ModuleId,
7 StaticId, StructId, TraitId, TypeAliasId, UnionId, VariantId,
8};
9use hir_expand::{name::AsName, AstId, MacroDefId, MacroDefKind};
10use ra_db::FileId;
11use ra_prof::profile;
12use ra_syntax::{
13 ast::{self, AstNode, NameOwner},
14 match_ast, SyntaxNode,
15};
16
17use crate::{
18 db::{DefDatabase, HirDatabase},
19 Const, DefWithBody, Enum, EnumVariant, FieldSource, Function, ImplBlock, InFile, Local,
20 MacroDef, Module, Static, Struct, StructField, Trait, TypeAlias, TypeParam, Union,
21};
22
23pub trait FromSource: Sized {
24 type Ast;
25 fn from_source(db: &impl DefDatabase, src: InFile<Self::Ast>) -> Option<Self>;
26}
27
28pub trait FromSourceByContainer: Sized {
29 type Ast: AstNode + 'static;
30 type Id: Copy + 'static;
31 const KEY: Key<Self::Ast, Self::Id>;
32}
33
34impl<T: FromSourceByContainer> FromSource for T
35where
36 T: From<<T as FromSourceByContainer>::Id>,
37{
38 type Ast = <T as FromSourceByContainer>::Ast;
39 fn from_source(db: &impl DefDatabase, src: InFile<Self::Ast>) -> Option<Self> {
40 analyze_container(db, src.as_ref().map(|it| it.syntax()))[T::KEY]
41 .get(&src)
42 .copied()
43 .map(Self::from)
44 }
45}
46
47macro_rules! from_source_by_container_impls {
48 ($(($hir:ident, $id:ident, $ast:path, $key:path)),* ,) => {$(
49 impl FromSourceByContainer for $hir {
50 type Ast = $ast;
51 type Id = $id;
52 const KEY: Key<Self::Ast, Self::Id> = $key;
53 }
54 )*}
55}
56
57from_source_by_container_impls![
58 (Struct, StructId, ast::StructDef, keys::STRUCT),
59 (Union, UnionId, ast::UnionDef, keys::UNION),
60 (Enum, EnumId, ast::EnumDef, keys::ENUM),
61 (Trait, TraitId, ast::TraitDef, keys::TRAIT),
62 (Function, FunctionId, ast::FnDef, keys::FUNCTION),
63 (Static, StaticId, ast::StaticDef, keys::STATIC),
64 (Const, ConstId, ast::ConstDef, keys::CONST),
65 (TypeAlias, TypeAliasId, ast::TypeAliasDef, keys::TYPE_ALIAS),
66 (ImplBlock, ImplId, ast::ImplBlock, keys::IMPL),
67];
68
69impl FromSource for MacroDef {
70 type Ast = ast::MacroCall;
71 fn from_source(db: &impl DefDatabase, src: InFile<Self::Ast>) -> Option<Self> {
72 let kind = MacroDefKind::Declarative;
73
74 let module_src = ModuleSource::from_child_node(db, src.as_ref().map(|it| it.syntax()));
75 let module = Module::from_definition(db, InFile::new(src.file_id, module_src))?;
76 let krate = Some(module.krate().id);
77
78 let ast_id = Some(AstId::new(src.file_id, db.ast_id_map(src.file_id).ast_id(&src.value)));
79
80 let id: MacroDefId = MacroDefId { krate, ast_id, kind };
81 Some(MacroDef { id })
82 }
83}
84
85impl FromSource for EnumVariant {
86 type Ast = ast::EnumVariant;
87 fn from_source(db: &impl DefDatabase, src: InFile<Self::Ast>) -> Option<Self> {
88 let parent_enum = src.value.parent_enum();
89 let src_enum = InFile { file_id: src.file_id, value: parent_enum };
90 let parent_enum = Enum::from_source(db, src_enum)?;
91 parent_enum.id.child_by_source(db)[keys::ENUM_VARIANT]
92 .get(&src)
93 .copied()
94 .map(EnumVariant::from)
95 }
96}
97
98impl FromSource for StructField {
99 type Ast = FieldSource;
100 fn from_source(db: &impl DefDatabase, src: InFile<Self::Ast>) -> Option<Self> {
101 let src = src.as_ref();
102
103 // FIXME this is buggy
104 let variant_id: VariantId = match src.value {
105 FieldSource::Named(field) => {
106 let value = field.syntax().ancestors().find_map(ast::StructDef::cast)?;
107 let src = InFile { file_id: src.file_id, value };
108 let def = Struct::from_source(db, src)?;
109 def.id.into()
110 }
111 FieldSource::Pos(field) => {
112 let value = field.syntax().ancestors().find_map(ast::EnumVariant::cast)?;
113 let src = InFile { file_id: src.file_id, value };
114 let def = EnumVariant::from_source(db, src)?;
115 EnumVariantId::from(def).into()
116 }
117 };
118
119 let dyn_map = variant_id.child_by_source(db);
120 match src.value {
121 FieldSource::Pos(it) => dyn_map[keys::TUPLE_FIELD].get(&src.with_value(it.clone())),
122 FieldSource::Named(it) => dyn_map[keys::RECORD_FIELD].get(&src.with_value(it.clone())),
123 }
124 .copied()
125 .map(StructField::from)
126 }
127}
128
129impl Local {
130 pub fn from_source(db: &impl HirDatabase, src: InFile<ast::BindPat>) -> Option<Self> {
131 let file_id = src.file_id;
132 let parent: DefWithBody = src.value.syntax().ancestors().find_map(|it| {
133 let res = match_ast! {
134 match it {
135 ast::ConstDef(value) => { Const::from_source(db, InFile { value, file_id})?.into() },
136 ast::StaticDef(value) => { Static::from_source(db, InFile { value, file_id})?.into() },
137 ast::FnDef(value) => { Function::from_source(db, InFile { value, file_id})?.into() },
138 _ => return None,
139 }
140 };
141 Some(res)
142 })?;
143 let (_body, source_map) = db.body_with_source_map(parent.into());
144 let src = src.map(ast::Pat::from);
145 let pat_id = source_map.node_pat(src.as_ref())?;
146 Some(Local { parent, pat_id })
147 }
148}
149
150impl TypeParam {
151 pub fn from_source(db: &impl HirDatabase, src: InFile<ast::TypeParam>) -> Option<Self> {
152 let file_id = src.file_id;
153 let parent: GenericDefId = src.value.syntax().ancestors().find_map(|it| {
154 let res = match_ast! {
155 match it {
156 ast::FnDef(value) => { Function::from_source(db, InFile { value, file_id})?.id.into() },
157 ast::StructDef(value) => { Struct::from_source(db, InFile { value, file_id})?.id.into() },
158 ast::EnumDef(value) => { Enum::from_source(db, InFile { value, file_id})?.id.into() },
159 ast::TraitDef(value) => { Trait::from_source(db, InFile { value, file_id})?.id.into() },
160 ast::TypeAliasDef(value) => { TypeAlias::from_source(db, InFile { value, file_id})?.id.into() },
161 ast::ImplBlock(value) => { ImplBlock::from_source(db, InFile { value, file_id})?.id.into() },
162 _ => return None,
163 }
164 };
165 Some(res)
166 })?;
167 let &id = parent.child_by_source(db)[keys::TYPE_PARAM].get(&src)?;
168 Some(TypeParam { id })
169 }
170}
171
172impl Module {
173 pub fn from_declaration(db: &impl DefDatabase, src: InFile<ast::Module>) -> Option<Self> {
174 let _p = profile("Module::from_declaration");
175 let parent_declaration = src.value.syntax().ancestors().skip(1).find_map(ast::Module::cast);
176
177 let parent_module = match parent_declaration {
178 Some(parent_declaration) => {
179 let src_parent = InFile { file_id: src.file_id, value: parent_declaration };
180 Module::from_declaration(db, src_parent)
181 }
182 None => {
183 let source_file = db.parse(src.file_id.original_file(db)).tree();
184 let src_parent =
185 InFile { file_id: src.file_id, value: ModuleSource::SourceFile(source_file) };
186 Module::from_definition(db, src_parent)
187 }
188 }?;
189
190 let child_name = src.value.name()?.as_name();
191 let def_map = db.crate_def_map(parent_module.id.krate);
192 let child_id = def_map[parent_module.id.local_id].children.get(&child_name)?;
193 Some(parent_module.with_module_id(*child_id))
194 }
195
196 pub fn from_definition(db: &impl DefDatabase, src: InFile<ModuleSource>) -> Option<Self> {
197 let _p = profile("Module::from_definition");
198 match src.value {
199 ModuleSource::Module(ref module) => {
200 assert!(!module.has_semi());
201 return Module::from_declaration(
202 db,
203 InFile { file_id: src.file_id, value: module.clone() },
204 );
205 }
206 ModuleSource::SourceFile(_) => (),
207 };
208
209 let original_file = src.file_id.original_file(db);
210 Module::from_file(db, original_file)
211 }
212
213 fn from_file(db: &impl DefDatabase, file: FileId) -> Option<Self> {
214 let _p = profile("Module::from_file");
215 let (krate, local_id) = db.relevant_crates(file).iter().find_map(|&crate_id| {
216 let crate_def_map = db.crate_def_map(crate_id);
217 let local_id = crate_def_map.modules_for_file(file).next()?;
218 Some((crate_id, local_id))
219 })?;
220 Some(Module { id: ModuleId { krate, local_id } })
221 }
222}
223
224fn analyze_container(db: &impl DefDatabase, src: InFile<&SyntaxNode>) -> DynMap {
225 let _p = profile("analyze_container");
226 return child_by_source(db, src).unwrap_or_default();
227
228 fn child_by_source(db: &impl DefDatabase, src: InFile<&SyntaxNode>) -> Option<DynMap> {
229 for container in src.value.ancestors().skip(1) {
230 let res = match_ast! {
231 match container {
232 ast::TraitDef(it) => {
233 let def = Trait::from_source(db, src.with_value(it))?;
234 def.id.child_by_source(db)
235 },
236 ast::ImplBlock(it) => {
237 let def = ImplBlock::from_source(db, src.with_value(it))?;
238 def.id.child_by_source(db)
239 },
240 ast::FnDef(it) => {
241 let def = Function::from_source(db, src.with_value(it))?;
242 DefWithBodyId::from(def.id)
243 .child_by_source(db)
244 },
245 ast::StaticDef(it) => {
246 let def = Static::from_source(db, src.with_value(it))?;
247 DefWithBodyId::from(def.id)
248 .child_by_source(db)
249 },
250 ast::ConstDef(it) => {
251 let def = Const::from_source(db, src.with_value(it))?;
252 DefWithBodyId::from(def.id)
253 .child_by_source(db)
254 },
255 _ => { continue },
256 }
257 };
258 return Some(res);
259 }
260
261 let module_source = ModuleSource::from_child_node(db, src);
262 let c = Module::from_definition(db, src.with_value(module_source))?;
263 Some(c.id.child_by_source(db))
264 }
265}
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-13 07:47:40 +0000