org.apache.bcel.verifier.structurals

Class Pass3bVerifier

java.lang.Object

org.apache.bcel.verifier.PassVerifier

org.apache.bcel.verifier.structurals.Pass3bVerifier

public final class Pass3bVerifier
extends PassVerifier

This PassVerifier verifies a method of class file according to pass 3, so-called structural verification 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:

do_verify()

Constructor Summary

Constructors

Constructor and Description
Pass3bVerifier(Verifier owner, int method_no) This class should only be instantiated by a Verifier.

Method Summary

Modifier and Type	Method and Description
VerificationResult	do_verify() Pass 3b implements the data flow analysis as described in the Java Virtual Machine Specification, Second Edition.
int	getMethodNo() Returns the method number as supplied when instantiating.
void	invalidReturnTypeError(Type returnedType, MethodGen m) Throws an exception indicating the returned type is not compatible with the return type of the given method.

Methods inherited from class org.apache.bcel.verifier.PassVerifier

addMessage, getMessages, verify

Methods inherited from class java.lang.Object

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

Constructor Detail

Pass3bVerifier

public Pass3bVerifier(Verifier owner,
                      int method_no)

This class should only be instantiated by a Verifier.

See Also:

Verifier

Method Detail

invalidReturnTypeError

public void invalidReturnTypeError(Type returnedType,
                                   MethodGen m)

Throws an exception indicating the returned type is not compatible with the return type of the given method.

Parameters:

returnedType - the type of the returned expression

m - the method we are processing

Throws:

StructuralCodeConstraintException - always

Since:

6.0

do_verify

public VerificationResult do_verify()

Pass 3b implements the data flow analysis as described in the Java Virtual Machine Specification, Second Edition. Later versions will use LocalVariablesInfo objects to verify if the verifier-inferred types and the class file's debug information (LocalVariables attributes) match [TODO].

Specified by:

do_verify in class PassVerifier

See Also:

LocalVariablesInfo, Pass2Verifier.getLocalVariablesInfo(int)

getMethodNo

public int getMethodNo()

Returns the method number as supplied when instantiating.