[soy mode] Add support for default param value

Author: axellew

mode/soy/soy.js

@@ -21,7 +21,6 @@
     "@inject": paramData,
     "@inject?": paramData,
     "@state": paramData,
-    "@state?": paramData,
     "template": { soyState: "templ-def", variableScope: true},
     "literal": { },
     "msg": {},
@@ -250,7 +249,8 @@
             return null;
 
           case "param-type":
-            if (stream.peek() == "}") {
+            var peekChar = stream.peek();
+            if (peekChar == "}" || peekChar == "=") {
               state.soyState.pop();
               return null;
             }

mode/soy/test.js

@@ -151,6 +151,19 @@
      '[keyword {/template}]',
      '');
 
+  MT('param-type-and-default-value',
+     '[keyword {template] [def .foo][keyword }]',
+     '  [keyword {@param] [def bar]: [type bool] = [atom true][keyword }]',
+     '[keyword {/template}]',
+     '');
+
+   MT('state-variable-reference',
+     '[keyword {template] [def .foo][keyword }]',
+     '  [keyword {@param] [def bar]:= [atom true][keyword }]',
+     '  [keyword {@state] [def foobar]:= [variable-2 $bar][keyword }]',
+     '[keyword {/template}]',
+     '');
+
   MT('single-quote-strings',
      '[keyword {][string "foo"] [string \'bar\'][keyword }]',
      '');