2 files changed, 26 insertions, 5 deletions

diff --git a/crates/ra_ide/src/syntax_highlighting/html.rs b/crates/ra_ide/src/syntax_highlighting/html.rs
index 0be55bca9..a5e7d2867 100644
--- a/crates/ra_ide/src/syntax_highlighting/html.rs
+++ b/crates/ra_ide/src/syntax_highlighting/html.rs
@@ -1,5 +1,6 @@
 //! Renders a bit of code as HTML.
 
+use oorandom::Rand32;
 use ra_db::SourceDatabase;
 use ra_syntax::{AstNode, TextRange, TextSize};
 
@@ -9,13 +10,12 @@ pub(crate) fn highlight_as_html(db: &RootDatabase, file_id: FileId, rainbow: boo
     let parse = db.parse(file_id);
 
     fn rainbowify(seed: u64) -> String {
-        use rand::prelude::*;
-        let mut rng = SmallRng::seed_from_u64(seed);
+        let mut rng = Rand32::new(seed);
         format!(
             "hsl({h},{s}%,{l}%)",
-            h = rng.gen_range::<u16, _, _>(0, 361),
-            s = rng.gen_range::<u16, _, _>(42, 99),
-            l = rng.gen_range::<u16, _, _>(40, 91),
+            h = rng.rand_range(0..361),
+            s = rng.rand_range(42..99),
+            l = rng.rand_range(40..91),
         )
     }
 
diff --git a/crates/ra_ide/src/syntax_highlighting/tests.rs b/crates/ra_ide/src/syntax_highlighting/tests.rs
index 87a6e2523..730efff0d 100644
--- a/crates/ra_ide/src/syntax_highlighting/tests.rs
+++ b/crates/ra_ide/src/syntax_highlighting/tests.rs
@@ -9,6 +9,9 @@ use crate::{mock_analysis::single_file, FileRange, TextRange};
 fn test_highlighting() {
     check_highlighting(
         r#"
+use inner::{self as inner_mod};
+mod inner {}
+
 #[derive(Clone, Debug)]
 struct Foo {
     pub x: i32,
@@ -272,19 +275,37 @@ fn test_unsafe_highlighting() {
         r#"
 unsafe fn unsafe_fn() {}
 
+union Union {
+    a: u32,
+    b: f32,
+}
+
 struct HasUnsafeFn;
 
 impl HasUnsafeFn {
     unsafe fn unsafe_method(&self) {}
 }
 
+struct TypeForStaticMut {
+    a: u8
+}
+
+static mut global_mut: TypeForStaticMut = TypeForStaticMut { a: 0 };
+
 fn main() {
     let x = &5 as *const usize;
+    let u = Union { b: 0 };
     unsafe {
         unsafe_fn();
+        let b = u.b;
+        match u {
+            Union { b: 0 } => (),
+            Union { a } => (),
+        }
         HasUnsafeFn.unsafe_method();
         let y = *(x);
         let z = -x;
+        let a = global_mut.a;
     }
 }
 "#