Package edu.umd.cs.findbugs.ba.bcp

Class ByteCodePattern

java.lang.Object
edu.umd.cs.findbugs.ba.bcp.ByteCodePattern
public class ByteCodePattern extends Object
A ByteCodePattern is a pattern matching a sequence of bytecode instructions.
Author:
David Hovemeyer
See Also:

  • Constructor Details

    • ByteCodePattern

      public ByteCodePattern()

  • Method Details

    • add

      public ByteCodePattern add(PatternElement element)
      Add a PatternElement to the end of the pattern.
      Parameters:
      element - the PatternElement
      Returns:
      this object

    • addWild

      public ByteCodePattern addWild(int numWild)
      Add a wildcard to match between 0 and given number of instructions. If there is already a wildcard at the end of the current pattern, resets its max value to that given.
      Parameters:
      numWild - maximum number of instructions to be matched by the wildcard

    • setInterElementWild

      public ByteCodePattern setInterElementWild(int numWild)
      Set number of inter-element wildcards to create between explicit PatternElements. By default, no implicit wildcards are created.
      Parameters:
      numWild - the number of wildcard instructions which may be matched between explicit PatternElements
      Returns:
      this object

    • getFirst

      public PatternElement getFirst()
      Get the first PatternElement in the pattern.

    • dummyVariable

      public String dummyVariable()
      Get a dummy variable name. The name returned will begin with the '$' character, and will be different than any previous dummy variable name allocated by this object. Dummy variable names are useful for creating PatternElements where you don't care whether the value it uses is the same as one used by another PatternElement.