Package net.bytebuddy.implementation.bytecode.constant

Class MethodConstant

java.lang.Object
net.bytebuddy.implementation.bytecode.StackManipulation.AbstractBase
net.bytebuddy.implementation.bytecode.constant.MethodConstant
All Implemented Interfaces:
StackManipulation
Direct Known Subclasses:
MethodConstant.ForConstructor, MethodConstant.ForMethod
public abstract class MethodConstant extends StackManipulation.AbstractBase
Represents the creation of a Method value which can be created from a given set of constant pool values and can therefore be considered a constant in the broader meaning.

  • Field Details

    • DO_PRIVILEGED

      @MaybeNull protected static final MethodDescription.InDefinedShape DO_PRIVILEGED
      The java.security.AccessController#doPrivileged(PrivilegedExceptionAction) method or null if this method is not available on the current VM.

    • methodDescription

      protected final MethodDescription.InDefinedShape methodDescription
      A description of the method to be loaded onto the stack.

  • Constructor Details

    • MethodConstant

      protected MethodConstant(MethodDescription.InDefinedShape methodDescription)
      Creates a new method constant.
      Parameters:
      methodDescription - The method description for which the Method representation should be created.

  • Method Details

    • doPrivileged

      @MaybeNull private static MethodDescription.InDefinedShape doPrivileged()
      Resolves the java.security.AccessController#doPrivileged method if the security manager is supported on the current VM and if security manager support is not explicitly disabled.
      Returns:
      The doPrivileged method or null.

    • of

      public static MethodConstant.CanCache of(MethodDescription.InDefinedShape methodDescription)
      Creates a stack manipulation that loads a method constant onto the operand stack.
      Parameters:
      methodDescription - The method to be loaded onto the stack.
      Returns:
      A stack manipulation that assigns a method constant for the given method description.

    • ofPrivileged

      public static MethodConstant.CanCache ofPrivileged(MethodDescription.InDefinedShape methodDescription)
      Creates a stack manipulation that loads a method constant onto the operand stack using an java.security.AccessController. If the current VM does not support the access controller API, or if net.bytebuddy.securitymanager is set to false, this method has the same effect as of(MethodDescription.InDefinedShape).
      Parameters:
      methodDescription - The method to be loaded onto the stack.
      Returns:
      A stack manipulation that assigns a method constant for the given method description.

    • typeConstantsFor

      protected static List<StackManipulation> typeConstantsFor(List<TypeDescription> parameterTypes)
      Returns a list of type constant load operations for the given list of parameters.
      Parameters:
      parameterTypes - A list of all type descriptions that should be represented as type constant load operations.
      Returns:
      A corresponding list of type constant load operations.

    • apply

      public StackManipulation.Size apply(org.objectweb.asm.MethodVisitor methodVisitor, Implementation.Context implementationContext)
      Applies the stack manipulation that is described by this instance.
      Parameters:
      methodVisitor - The method visitor used to write the method implementation to.
      implementationContext - The context of the current implementation.
      Returns:
      The changes to the size of the operand stack that are implied by this stack manipulation.

    • withPrivilegedLookup

      protected MethodConstant.CanCache withPrivilegedLookup()
      Returns a method constant that uses an java.security.AccessController to look up this constant.
      Returns:
      A method constant that uses an java.security.AccessController to look up this constant.

    • methodName

      protected abstract StackManipulation methodName()
      Returns a stack manipulation that loads the method name onto the operand stack if this is required.
      Returns:
      A stack manipulation that loads the method name onto the operand stack if this is required.

    • accessorMethod

      protected abstract MethodDescription.InDefinedShape accessorMethod()
      Returns the method for loading a declared method or constructor onto the operand stack.
      Returns:
      The method for loading a declared method or constructor onto the operand stack.

    • hashCode

      public int hashCode()
      Overrides:
      hashCode in class Object

    • equals

      public boolean equals(@MaybeNull Object other)
      Overrides:
      equals in class Object