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-rw-r--r--crates/ra_ide_api/src/hover.rs65
1 files changed, 23 insertions, 42 deletions
diff --git a/crates/ra_ide_api/src/hover.rs b/crates/ra_ide_api/src/hover.rs
index c445d4fa1..d73c5bc31 100644
--- a/crates/ra_ide_api/src/hover.rs
+++ b/crates/ra_ide_api/src/hover.rs
@@ -1,7 +1,7 @@
1use ra_db::{Cancelable, SyntaxDatabase}; 1use ra_db::{Cancelable, SyntaxDatabase};
2use ra_syntax::{ 2use ra_syntax::{
3 AstNode, SyntaxNode, TreeArc, 3 AstNode, SyntaxNode, TreeArc,
4 ast::{self, NameOwner}, 4 ast::self,
5 algo::{find_covering_node, find_node_at_offset, find_leaf_at_offset, visit::{visitor, Visitor}}, 5 algo::{find_covering_node, find_node_at_offset, find_leaf_at_offset, visit::{visitor, Visitor}},
6}; 6};
7 7
@@ -137,48 +137,29 @@ impl NavigationTarget {
137 fn description(&self, db: &RootDatabase) -> Option<String> { 137 fn description(&self, db: &RootDatabase) -> Option<String> {
138 // TODO: After type inference is done, add type information to improve the output 138 // TODO: After type inference is done, add type information to improve the output
139 let node = self.node(db)?; 139 let node = self.node(db)?;
140 // TODO: Refactor to be have less repetition 140
141 fn visit_node<T>(node: &T, label: &str) -> Option<String>
142 where
143 T: ast::NameOwner + ast::VisibilityOwner,
144 {
145 let mut string = node
146 .visibility()
147 .map(|v| format!("{} ", v.syntax().text()))
148 .unwrap_or_default();
149 string.push_str(label);
150 node.name()?.syntax().text().push_to(&mut string);
151 Some(string)
152 }
153
141 visitor() 154 visitor()
142 .visit(|node: &ast::FnDef| { 155 .visit(|node: &ast::FnDef| visit_node(node, "fn "))
143 let mut string = "fn ".to_string(); 156 .visit(|node: &ast::StructDef| visit_node(node, "struct "))
144 node.name()?.syntax().text().push_to(&mut string); 157 .visit(|node: &ast::EnumDef| visit_node(node, "enum "))
145 Some(string) 158 .visit(|node: &ast::TraitDef| visit_node(node, "trait "))
146 }) 159 .visit(|node: &ast::Module| visit_node(node, "mod "))
147 .visit(|node: &ast::StructDef| { 160 .visit(|node: &ast::TypeDef| visit_node(node, "type "))
148 let mut string = "struct ".to_string(); 161 .visit(|node: &ast::ConstDef| visit_node(node, "const "))
149 node.name()?.syntax().text().push_to(&mut string); 162 .visit(|node: &ast::StaticDef| visit_node(node, "static "))
150 Some(string)
151 })
152 .visit(|node: &ast::EnumDef| {
153 let mut string = "enum ".to_string();
154 node.name()?.syntax().text().push_to(&mut string);
155 Some(string)
156 })
157 .visit(|node: &ast::TraitDef| {
158 let mut string = "trait ".to_string();
159 node.name()?.syntax().text().push_to(&mut string);
160 Some(string)
161 })
162 .visit(|node: &ast::Module| {
163 let mut string = "mod ".to_string();
164 node.name()?.syntax().text().push_to(&mut string);
165 Some(string)
166 })
167 .visit(|node: &ast::TypeDef| {
168 let mut string = "type ".to_string();
169 node.name()?.syntax().text().push_to(&mut string);
170 Some(string)
171 })
172 .visit(|node: &ast::ConstDef| {
173 let mut string = "const ".to_string();
174 node.name()?.syntax().text().push_to(&mut string);
175 Some(string)
176 })
177 .visit(|node: &ast::StaticDef| {
178 let mut string = "static ".to_string();
179 node.name()?.syntax().text().push_to(&mut string);
180 Some(string)
181 })
182 .accept(&node)? 163 .accept(&node)?
183 } 164 }
184} 165}