fixing boxed closure, fixes #144 (#173)

Author: Jayflux

RustEnhanced.sublime-syntax

@@ -365,6 +365,10 @@ contexts:
 
   generic-angles:
     - meta_scope: meta.generic.rust
+    # -> to cover https://doc.rust-lang.org/std/boxed/trait.FnBox.html
+    - match: '->'
+      scope: punctuation.separator.generic.rust
+      push: generic-angles-contents
     - match: '>'
       scope: punctuation.definition.generic.end.rust
       pop: true

syntax_test_rust.rs

@@ -211,6 +211,19 @@ struct PrintableStruct(Box<i32>);
 //                            ^ punctuation.definition.generic.end
 //                             ^ punctuation.definition.group.end
 
+
+// fixes https://github.com/rust-lang/sublime-rust/issues/144
+fn factory() -> Box<Fn(i32) -> i32> {
+// <- storage.type.function
+// ^^^^^^^ entity.name.function 
+//                  ^^^^^^^^^^^^^^ meta.generic
+//                      ^^ storage.type 
+//                              ^^ storage.type   
+//                          ^^ punctuation.separator.generic
+
+    Box::new(|x| x + 1)
+}
+
 impl fmt::Display for PrintableStruct {
 // <- meta.impl
 //^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ meta.impl