1 files changed, 56 insertions, 0 deletions
diff --git a/java/java-analysis-impl/src/com/intellij/codeInspection/bytecodeAnalysis/asm/LiteFramelessAnalyzer.java b/java/java-analysis-impl/src/com/intellij/codeInspection/bytecodeAnalysis/asm/LiteFramelessAnalyzer.java
new file mode 100644
index 000000000000..0a9721018862
--- /dev/null
+++ b/java/java-analysis-impl/src/com/intellij/codeInspection/bytecodeAnalysis/asm/LiteFramelessAnalyzer.java
@@ -0,0 +1,56 @@
+/*
+ * 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.
+ */
+package com.intellij.codeInspection.bytecodeAnalysis.asm;
+
+import org.jetbrains.org.objectweb.asm.tree.AbstractInsnNode;
+import org.jetbrains.org.objectweb.asm.tree.analysis.AnalyzerException;
+
+import java.util.List;
+
+/**
+ * Specialized lite version of {@link FramelessAnalyzer}.
+ * No processing of Subroutines. May be used for methods without JSR/RET instructions.
+ *
+ * @author lambdamix
+ */
+public class LiteFramelessAnalyzer extends FramelessAnalyzer {
+
+  @Override
+  protected void findSubroutine(int insn, FramelessAnalyzer.Subroutine sub, List<AbstractInsnNode> calls) throws AnalyzerException {
+  }
+
+  @Override
+  protected void merge(final int insn, final FramelessAnalyzer.Subroutine subroutine) throws AnalyzerException {
+    if (!wasQueued[insn]) {
+      wasQueued[insn] = true;
+      if (!queued[insn]) {
+        queued[insn] = true;
+        queue[top++] = insn;
+      }
+    }
+  }
+
+  @Override
+  protected void merge(final int insn, final FramelessAnalyzer.Subroutine subroutineBeforeJSR, final boolean[] access) throws AnalyzerException {
+    if (!wasQueued[insn]) {
+      wasQueued[insn] = true;
+      if (!queued[insn]) {
+        queued[insn] = true;
+        queue[top++] = insn;
+      }
+    }
+  }
+}