Show const body in short_label

Signed-off-by: JmPotato <ghzpotato@gmail.com>

crates/ra_ide/src/display/short_label.rs

@@ -61,7 +61,15 @@ fn short_label(&self) -> Option<String> {
 
 impl ShortLabel for ast::Const {
     fn short_label(&self) -> Option<String> {
-        short_label_from_ty(self, self.ty(), "const ")
+        match short_label_from_ty(self, self.ty(), "const ") {
+            Some(buf) => {
+                let mut new_buf = buf;
+                let body = self.body().unwrap();
+                format_to!(new_buf, " = {}", body.syntax());
+                Some(new_buf)
+            }
+            None => None,
+        }
     }
 }
 

crates/ra_ide/src/hover.rs

@@ -590,16 +590,16 @@ fn main() {
     #[test]
     fn hover_const_static() {
         check(
-            r#"const foo<|>: u32 = 0;"#,
+            r#"const foo<|>: u32 = 123;"#,
             expect![[r#"
                 *foo*
                 ```rust
-                const foo: u32
+                const foo: u32 = 123
                 ```
             "#]],
         );
         check(
-            r#"static foo<|>: u32 = 0;"#,
+            r#"static foo<|>: u32 = 456;"#,
             expect![[r#"
                 *foo*
                 ```rust
@@ -834,7 +834,7 @@ fn main() {
             expect![[r#"
                 *C*
                 ```rust
-                const C: u32
+                const C: u32 = 1
                 ```
             "#]],
         )