allow new lines and comments in lambda parameters

Author: dten

RustEnhanced.sublime-syntax

@@ -362,9 +362,10 @@ contexts:
     # scope as soon as we hit something that it not a
     # valid part so the whole rest of the document isn't
     # highlighted using the params scope
+    - include: comments
     - match: '(?=\()'
       push: group
-    - match: '(?=[};)\]\n])'
+    - match: '(?=[};)\]])'
       pop: true
     - match: '\|'
       scope: punctuation.definition.parameters.end.rust

syntax_test_rust.rs

@@ -1203,3 +1203,19 @@ pub union Foo<'a, Y: Baz>
 // that we don't accidentally interpret it as a keyword.
 fn union() {}
 // ^^^^^ meta.function entity.name.function
+
+fn lambdas() {
+    let c = |foo,
+//          ^ meta.function.closure meta.function.parameters punctuation.definition.parameters.begin
+//           ^^^ meta.function.parameters variable.parameter
+             bar| {};
+//           ^^^ meta.function.parameters variable.parameter
+//              ^ meta.function.closure meta.function.parameters punctuation.definition.parameters.end
+    let c = |foo,  // weird, but should work
+//          ^ meta.function.closure meta.function.parameters punctuation.definition.parameters.begin
+//           ^^^ meta.function.parameters variable.parameter
+//                 ^^^^^^^^^^^^^^^^^^^^^^^^^ comment.line
+             bar| {};
+//           ^^^ meta.function.parameters variable.parameter
+//              ^ meta.function.closure meta.function.parameters punctuation.definition.parameters.end
+}