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, that is, 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)
      Constructs a 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()
      Creates a deep copy of this object.
      Returns:
      deep copy of this object.

    • dump

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

    • getLineNumber

      public int getLineNumber()
      Gets the line number.
      Returns:
      Corresponding source line.

    • getStartPC

      public int getStartPC()
      Gets the program counter.
      Returns:
      PC in code.

    • setLineNumber

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

    • setStartPC

      public void setStartPC(int startPc)
      Sets the program counter.
      Parameters:
      startPc - The pc for this line number.

    • toString

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