sync GPUB

platform/lang-impl/src/com/intellij/lang/parser/GeneratedParserUtilBase.java

@@ -1,3 +1,19 @@
+/*
+ * Copyright 2000-2014 JetBrains s.r.o.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 // This class is a runtime engine for parsers generated by Grammar-Kit.
 // Do not modify or refactor without complete investigation and/or review.
 package com.intellij.lang.parser;
@@ -107,6 +123,11 @@ public class GeneratedParserUtilBase {
     return TokenSet.create(tokenTypes_);
   }
 
+  public static boolean leftMarkerIs(PsiBuilder builder_, IElementType type) {
+    LighterASTNode marker = builder_.getLatestDoneMarker();
+    return marker != null && marker.getTokenType() == type;
+  }
+  
   private static boolean consumeTokens(PsiBuilder builder_, boolean smart, int pin, IElementType... tokens) {
     ErrorState state = ErrorState.get(builder_);
     if (state.completionState != null && state.predicateCount == 0) {