Package org.apache.bcel.classfile

Class LineNumber

java.lang.Object
org.apache.bcel.classfile.LineNumber
All Implemented Interfaces:
Cloneable, Node
public final class LineNumber extends Object implements Cloneable, Node
This class represents a (PC offset, line number) pair, i.e., a line number in the source that corresponds to a relative address in the byte code. This is used for debugging purposes.
See Also:

  • Constructor Details

    • LineNumber

      public LineNumber(int startPc, int lineNumber)
      Parameters:
      startPc - Program Counter (PC) corresponds to
      lineNumber - line number in source file

    • LineNumber

      public LineNumber(LineNumber c)
      Initialize from another object.
      Parameters:
      c - the object to copy

  • Method Details

    • accept

      public void accept(Visitor v)
      Called by objects that are traversing the nodes of the tree implicitly defined by the contents of a Java class. I.e., the hierarchy of methods, fields, attributes, etc. spawns a tree of objects.
      Specified by:
      accept in interface Node
      Parameters:
      v - Visitor object

    • copy

      public LineNumber copy()
      Returns:
      deep copy of this object

    • dump

      public void dump(DataOutputStream file) throws IOException
      Dump line number/pc pair to file stream in binary format.
      Parameters:
      file - Output file stream
      Throws:
      IOException - if an I/O Exception occurs in writeShort

    • getLineNumber

      public int getLineNumber()
      Returns:
      Corresponding source line

    • getStartPC

      public int getStartPC()
      Returns:
      PC in code

    • setLineNumber

      public void setLineNumber(int lineNumber)
      Parameters:
      lineNumber - the source line number

    • setStartPC

      public void setStartPC(int startPc)
      Parameters:
      startPc - the pc for this line number

    • toString

      public String toString()
      Overrides:
      toString in class Object
      Returns:
      String representation