ra_ide: remove dead code in HoverResult

crates/ra_ide/src/hover.rs

@@ -1,4 +1,5 @@
-//! FIXME: write short doc here
+//! Logic for computing info that is displayed when the user hovers over any
+//! source code items (e.g. function call, struct field, variable symbol...)
 
 use hir::{
     Adt, AsAssocItem, AssocItemContainer, FieldSource, HasSource, HirDisplay, ModuleDef,
@@ -24,35 +25,20 @@ use itertools::Itertools;
 use std::iter::once;
 
 /// Contains the results when hovering over an item
-#[derive(Debug, Clone)]
+#[derive(Debug, Default)]
 pub struct HoverResult {
     results: Vec<String>,
-    exact: bool,
-}
-
-impl Default for HoverResult {
-    fn default() -> Self {
-        HoverResult::new()
-    }
 }
 
 impl HoverResult {
     pub fn new() -> HoverResult {
-        HoverResult {
+        Self::default()
-            results: Vec::new(),
-            // We assume exact by default
-            exact: true,
-        }
     }
 
     pub fn extend(&mut self, item: Option<String>) {
         self.results.extend(item);
     }
 
-    pub fn is_exact(&self) -> bool {
-        self.exact
-    }
-
     pub fn is_empty(&self) -> bool {
         self.results.is_empty()
     }
@@ -72,20 +58,7 @@ impl HoverResult {
     /// Returns the results converted into markup
     /// for displaying in a UI
     pub fn to_markup(&self) -> String {
-        let mut markup = if !self.exact {
+        self.results.join("\n\n---\n")
-            let mut msg = String::from("Failed to exactly resolve the symbol. This is probably because rust_analyzer does not yet support traits.");
-            if !self.results.is_empty() {
-                msg.push_str("  \nThese items were found instead:");
-            }
-            msg.push_str("\n\n---\n");
-            msg
-        } else {
-            String::new()
-        };
-
-        markup.push_str(&self.results.join("\n\n---\n"));
-
-        markup
     }
 }
 
@@ -595,7 +568,6 @@ fn func(foo: i32) { if true { <|>foo; }; }
         );
         let hover = analysis.hover(position).unwrap().unwrap();
         assert_eq!(trim_markup_opt(hover.info.first()), Some("wrapper::Thing\nfn new() -> Thing"));
-        assert_eq!(hover.info.is_exact(), true);
     }
 
     #[test]
@@ -618,7 +590,6 @@ fn func(foo: i32) { if true { <|>foo; }; }
         );
         let hover = analysis.hover(position).unwrap().unwrap();
         assert_eq!(trim_markup_opt(hover.info.first()), Some("const C: u32"));
-        assert_eq!(hover.info.is_exact(), true);
     }
 
     #[test]
@@ -635,7 +606,6 @@ fn func(foo: i32) { if true { <|>foo; }; }
         );
         let hover = analysis.hover(position).unwrap().unwrap();
         assert_eq!(trim_markup_opt(hover.info.first()), Some("Thing"));
-        assert_eq!(hover.info.is_exact(), true);
 
         /* FIXME: revive these tests
                 let (analysis, position) = single_file_with_position(
@@ -651,7 +621,6 @@ fn func(foo: i32) { if true { <|>foo; }; }
 
                 let hover = analysis.hover(position).unwrap().unwrap();
                 assert_eq!(trim_markup_opt(hover.info.first()), Some("Thing"));
-                assert_eq!(hover.info.is_exact(), true);
 
                 let (analysis, position) = single_file_with_position(
                     "
@@ -665,7 +634,6 @@ fn func(foo: i32) { if true { <|>foo; }; }
                 );
                 let hover = analysis.hover(position).unwrap().unwrap();
                 assert_eq!(trim_markup_opt(hover.info.first()), Some("enum Thing"));
-                assert_eq!(hover.info.is_exact(), true);
 
                 let (analysis, position) = single_file_with_position(
                     "
@@ -678,7 +646,6 @@ fn func(foo: i32) { if true { <|>foo; }; }
                 );
                 let hover = analysis.hover(position).unwrap().unwrap();
                 assert_eq!(trim_markup_opt(hover.info.first()), Some("enum Thing"));
-                assert_eq!(hover.info.is_exact(), true);
         */
     }
 
@@ -696,7 +663,6 @@ fn func(foo: i32) { if true { <|>foo; }; }
         );
         let hover = analysis.hover(position).unwrap().unwrap();
         assert_eq!(trim_markup_opt(hover.info.first()), Some("i32"));
-        assert_eq!(hover.info.is_exact(), true);
     }
 
     #[test]
@@ -714,7 +680,6 @@ fn func(foo: i32) { if true { <|>foo; }; }
         );
         let hover = analysis.hover(position).unwrap().unwrap();
         assert_eq!(trim_markup_opt(hover.info.first()), Some("macro_rules! foo"));
-        assert_eq!(hover.info.is_exact(), true);
     }
 
     #[test]
@@ -726,7 +691,6 @@ fn func(foo: i32) { if true { <|>foo; }; }
         );
         let hover = analysis.hover(position).unwrap().unwrap();
         assert_eq!(trim_markup_opt(hover.info.first()), Some("i32"));
-        assert_eq!(hover.info.is_exact(), true);
     }
 
     #[test]