Scan <= in jsx mode as Token.LessEqual

Fixes #113

Author: Iwan

src/res_scanner.ml

@@ -624,7 +624,10 @@ let rec scan scanner =
         if scanner.ch == CharacterCodes.forwardslash then
           let () = next scanner in
           Token.LessThanSlash
-        else
+        else if scanner.ch == CharacterCodes.equal then (
+          next scanner;
+          Token.LessEqual
+        ) else
           Token.LessThan
       ) else if scanner.ch == CharacterCodes.equal then (
         next scanner;

tests/parsing/grammar/expressions/__snapshots__/parse.spec.js.snap

@@ -1036,7 +1036,19 @@ let _ =
                              [@JSX ]))))
                       |> Array.of_list)
                      |> ReasonReact.array)
-                [@ns.braces ])] ())[@JSX ])"
+                [@ns.braces ])] ())[@JSX ])
+;;((div ~children:[((Js.log (a <= 10))[@ns.braces ])] ())[@JSX ])
+;;((div
+      ~children:[((div ~children:[((Js.log (a <= 10))[@ns.braces ])] ())
+                [@JSX ])] ())[@JSX ])
+;;((div
+      ~children:[((div ~onClick:((fun _ -> Js.log (a <= 10))
+                     [@ns.namedArgLoc ][@ns.braces ])
+                     ~children:[((div
+                                    ~children:[((Js.log (a <= 10))
+                                              [@ns.braces ])] ())
+                               [@JSX ])] ())
+                [@JSX ])] ())[@JSX ])"
 `;
 
 exports[`list.js 1`] = `

tests/parsing/grammar/expressions/jsx.js

@@ -478,3 +478,9 @@ let _ = <View style=styles["backgroundImageWrapper"]>
   |> Array.of_list
   |> ReasonReact.array}
 </div>;
+
+// https://github.com/rescript-lang/syntax/issues/113
+// <= should be scanned as <=
+<div>  {Js.log(a <= 10)} </div>
+<div> <div> {Js.log(a <= 10)} </div> </div>
+<div> <div onClick={_ => Js.log(a <= 10) }> <div> {Js.log(a <= 10)} </div> </div> </div>

tests/printer/expr/__snapshots__/render.spec.js.snap

@@ -2694,6 +2694,13 @@ let x = <MyComponent sidebar={<div> test </div>} nav={<Navbar />} />
   |> Array.of_list
   |> ReasonReact.array}
 </div>
+
+// https://github.com/rescript-lang/syntax/issues/113
+<div> {Js.log(a <= 10)} </div>
+<div> <div> {Js.log(a <= 10)} </div> </div>
+<div>
+  <div onClick={_ => Js.log(a <= 10)}> <div> {Js.log(a <= 10)} </div> </div>
+</div>
 "
 `;
 

tests/printer/expr/jsx.js

@@ -261,3 +261,8 @@ let x = <MyComponent sidebar=<div> test </div> nav=<Navbar /> />
   |> Array.of_list
   |> ReasonReact.array}
 </div>
+
+// https://github.com/rescript-lang/syntax/issues/113
+<div>  {Js.log(a <= 10)} </div>
+<div> <div> {Js.log(a <= 10)} </div> </div>
+<div> <div onClick={_ => Js.log(a <= 10) }> <div> {Js.log(a <= 10)} </div> </div> </div>