Bug 1288459 - Split variable-statement parsing into its own parser function. r=arai

--HG--
extra : rebase_source : 574f08e92b8e8e9f0f35e86a48986e956828c09a

js/src/frontend/Parser.cpp

@@ -6424,6 +6424,18 @@ Parser<ParseHandler>::peekShouldParseLetDeclaration(bool* parseDeclOut,
     return true;
 }
 
+template <typename ParseHandler>
+typename ParseHandler::Node
+Parser<ParseHandler>::variableStatement(YieldHandling yieldHandling)
+{
+    Node vars = declarationList(yieldHandling, PNK_VAR);
+    if (!vars)
+        return null();
+    if (!MatchOrInsertSemicolonAfterExpression(tokenStream))
+        return null();
+    return vars;
+}
+
 template <typename ParseHandler>
 typename ParseHandler::Node
 Parser<ParseHandler>::statement(YieldHandling yieldHandling, bool canHaveDirectives)
@@ -6442,14 +6454,8 @@ Parser<ParseHandler>::statement(YieldHandling yieldHandling, bool canHaveDirecti
         return blockStatement(yieldHandling);
 
       // VariableStatement[?Yield]
-      case TOK_VAR: {
-        Node pn = declarationList(yieldHandling, PNK_VAR);
-        if (!pn)
-            return null();
-        if (!MatchOrInsertSemicolonAfterExpression(tokenStream))
-            return null();
-        return pn;
-      }
+      case TOK_VAR:
+        return variableStatement(yieldHandling);
 
       // EmptyStatement
       case TOK_SEMI:

js/src/frontend/Parser.h

@@ -1046,6 +1046,8 @@ class Parser final : private JS::AutoGCRooter, public StrictModeGetter
     Node catchBlockStatement(YieldHandling yieldHandling, HandlePropertyName simpleCatchParam);
     Node debuggerStatement();
 
+    Node variableStatement(YieldHandling yieldHandling);
+
     Node lexicalDeclaration(YieldHandling yieldHandling, bool isConst);
     Node importDeclaration();
     Node exportDeclaration();