Package edu.umd.cs.findbugs.ba

Class LineNumberMap

  • public class LineNumberMap
extends java.lang.Object
    Summarize line numbers (and other source information) for a method.

    • Field Summary

      Fields 
      Modifier and Type Field Description
      private static boolean DEBUG
      Set this property to true to get debug print statements.
      private boolean hasLineNumbers  
      private static boolean LINE_NUMBER_BUG
      When this is true, the workaround for the bug in BCEL 5.0's LineNumberTable class is disabled.
      private java.util.IdentityHashMap<org.apache.bcel.generic.InstructionHandle,​org.apache.bcel.classfile.LineNumber> lineNumberMap  
      private org.apache.bcel.generic.MethodGen methodGen  

    • Constructor Summary

      Constructors 
      Constructor Description
      LineNumberMap​(org.apache.bcel.generic.MethodGen methodGen)
      Constructor.

    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      void build()
      Build the line number information.
      private void checkTable​(org.apache.bcel.classfile.LineNumberTable table)  
      boolean hasLineNumbers()
      Does this method have line number information?
      org.apache.bcel.classfile.LineNumber lookupLineNumber​(org.apache.bcel.generic.InstructionHandle handle)
      Find the line number information for instruction whose handle is given.

      • Methods inherited from class java.lang.Object

        clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

    • Field Detail

      • DEBUG

        private static final boolean DEBUG
        Set this property to true to get debug print statements.

      • LINE_NUMBER_BUG

        private static final boolean LINE_NUMBER_BUG
        When this is true, the workaround for the bug in BCEL 5.0's LineNumberTable class is disabled.

      • methodGen

        private final org.apache.bcel.generic.MethodGen methodGen

      • lineNumberMap

        private final java.util.IdentityHashMap<org.apache.bcel.generic.InstructionHandle,​org.apache.bcel.classfile.LineNumber> lineNumberMap

      • hasLineNumbers

        private boolean hasLineNumbers

    • Constructor Detail

      • LineNumberMap

        public LineNumberMap​(org.apache.bcel.generic.MethodGen methodGen)
        Constructor.
        Parameters:
        methodGen - the method to summarize line numbers for

    • Method Detail

      • build

        public void build()
        Build the line number information. Should be called before any other methods.

      • checkTable

        private void checkTable​(org.apache.bcel.classfile.LineNumberTable table)

      • hasLineNumbers

        public boolean hasLineNumbers()
        Does this method have line number information?

      • lookupLineNumber

        public org.apache.bcel.classfile.LineNumber lookupLineNumber​(org.apache.bcel.generic.InstructionHandle handle)
        Find the line number information for instruction whose handle is given.
        Parameters:
        handle - the InstructionHandle
        Returns:
        the LineNumber object containing bytecode offset and source line number