Package org.apache.bcel.verifier.statics

Class Pass3aVerifier

java.lang.Object
org.apache.bcel.verifier.PassVerifier
org.apache.bcel.verifier.statics.Pass3aVerifier
public final class Pass3aVerifier extends PassVerifier
This PassVerifier verifies a class file according to pass 3, static part as described in The Java Virtual Machine Specification, 2nd edition. More detailed information is to be found at the do_verify() method's documentation.
See Also:

  • Constructor Details

    • Pass3aVerifier

      public Pass3aVerifier(Verifier verifier, int methodNo)
      Should only be instantiated by a Verifier.

  • Method Details

    • do_verify

      public VerificationResult do_verify()
      Pass 3a is the verification of static constraints of JVM code (such as legal targets of branch instructions). This is the part of pass 3 where you do not need data flow analysis. JustIce also delays the checks for a correct exception table of a Code attribute and correct line number entries in a LineNumberTable attribute of a Code attribute (which conceptually belong to pass 2) to this pass. Also, most of the check for valid local variable entries in a LocalVariableTable attribute of a Code attribute is delayed until this pass. All these checks need access to the code array of the Code attribute.
      Specified by:
      do_verify in class PassVerifier
      Returns:
      The VerificationResult
      Throws:
      InvalidMethodException - if the method to verify does not exist.

    • getMethodNo

      public int getMethodNo()
      Returns the method number as supplied when instantiating.

    • tostring

      protected String tostring(Object obj)
      This method is a slightly modified version of verifier.statics.StringRepresentation.toString(final Node obj) that accepts any Object, not just a Node. Returns the String representation of the Object obj; this is obj.toString() if it does not throw any RuntimeException, or else it is a string derived only from obj's class name.