Class IClass

java.lang.Object
org.codehaus.janino.IClass
Direct Known Subclasses:
ClassFileIClass

public abstract class IClass extends Object
A simplified equivalent to "java.lang.reflect".
  • Field Details

    • NOT_CONSTANT

      public static final Object NOT_CONSTANT
      Special return value for IClass.IField.getConstantValue() indicating that the field does not have a constant value.
    • VOID

      public static final IClass VOID
      The IClass object for the type VOID.
    • BYTE

      public static final IClass BYTE
      The IClass object for the primitive type BYTE.
    • CHAR

      public static final IClass CHAR
      The IClass object for the primitive type CHAR.
    • DOUBLE

      public static final IClass DOUBLE
      The IClass object for the primitive type DOUBLE.
    • FLOAT

      public static final IClass FLOAT
      The IClass object for the primitive type FLOAT.
    • INT

      public static final IClass INT
      The IClass object for the primitive type INT.
    • LONG

      public static final IClass LONG
      The IClass object for the primitive type LONG.
    • SHORT

      public static final IClass SHORT
      The IClass object for the primitive type SHORT.
    • BOOLEAN

      public static final IClass BOOLEAN
      The IClass object for the primitive type BOOLEAN.
  • Constructor Details

    • IClass

      public IClass()
  • Method Details

    • getDeclaredIConstructors

      public final IClass.IConstructor[] getDeclaredIConstructors()
      Returns all the constructors declared by the class represented by the type. If the class has a default constructor, it is included.

      Returns an array with zero elements for an interface, array, primitive type or "void".

    • getDeclaredIConstructors2

      protected abstract IClass.IConstructor[] getDeclaredIConstructors2()
      The uncached version of getDeclaredIConstructors() which must be implemented by derived classes.
    • getDeclaredIMethods

      public final IClass.IMethod[] getDeclaredIMethods()
      Returns the methods of the class or interface (but not inherited methods).
      Returns an empty array for an array, primitive type or "void".
    • getDeclaredIMethods2

      protected abstract IClass.IMethod[] getDeclaredIMethods2()
      The uncached version of getDeclaredIMethods() which must be implemented by derived classes.
    • getDeclaredIMethods

      public final IClass.IMethod[] getDeclaredIMethods(String methodName)
      Returns all methods with the given name declared in the class or interface (but not inherited methods).
      Returns an empty array if no methods with that name are declared.
      Returns:
      an array of IClass.IMethods that must not be modified
    • getIMethods

      public final IClass.IMethod[] getIMethods() throws CompileException
      Returns all methods declared in the class or interface, its superclasses and its superinterfaces.
      Returns:
      an array of IClass.IMethods that must not be modified
      Throws:
      CompileException
    • hasIMethod

      public final boolean hasIMethod(String methodName, IClass[] parameterTypes) throws CompileException
      Returns:
      Whether this IClass does declare an IClass.IMethod with the given name and parameter types
      Throws:
      CompileException
    • findIMethod

      public final IClass.IMethod findIMethod(String methodName, IClass[] parameterTypes) throws CompileException
      Returns:
      The IClass.IMethod declared in this IClass with the given name and parameter types
      Throws:
      CompileException
    • getDeclaredIFields

      public final IClass.IField[] getDeclaredIFields()
      Returns the IClass.IFields declared in this IClass (but not inherited fields).
      Returns:
      An empty array for an array, primitive type or "void"
    • getDeclaredIField

      public final IClass.IField getDeclaredIField(String name)
      Returns the named IClass.IField declared in this IClass (does not work for inherited fields).
      Returns:
      null iff this IClass does not declare an IClass.IField with that name
    • clearIFieldCaches

      protected void clearIFieldCaches()
    • getDeclaredIFields2

      protected abstract IClass.IField[] getDeclaredIFields2()
      Uncached version of getDeclaredIFields().
    • getSyntheticIFields

      public IClass.IField[] getSyntheticIFields()
      Returns the synthetic fields of an anonymous or local class, in the order in which they are passed to all constructors.
    • getDeclaredIClasses

      public final IClass[] getDeclaredIClasses() throws CompileException
      Returns the classes and interfaces declared as members of the class (but not inherited classes and interfaces).
      Returns an empty array for an array, primitive type or "void".
      Throws:
      CompileException
    • getDeclaredIClasses2

      protected abstract IClass[] getDeclaredIClasses2() throws CompileException
      Throws:
      CompileException
    • getDeclaringIClass

      public final IClass getDeclaringIClass() throws CompileException
      If this class is a member class, return the declaring class, otherwise return null.
      Throws:
      CompileException
    • getDeclaringIClass2

      protected abstract IClass getDeclaringIClass2() throws CompileException
      Throws:
      CompileException
    • getOuterIClass

      public final IClass getOuterIClass() throws CompileException
      The following types have an "outer class":
      • Anonymous classes declared in a non-static method of a class
      • Local classes declared in a non-static method of a class
      • Non-static member classes
      Throws:
      CompileException
    • getOuterIClass2

      protected abstract IClass getOuterIClass2() throws CompileException
      Throws:
      CompileException
    • getSuperclass

      public final IClass getSuperclass() throws CompileException
      Returns the superclass of the class.
      Returns "null" for class "Object", interfaces, arrays, primitive types and "void".
      Throws:
      CompileException
    • getSuperclass2

      protected abstract IClass getSuperclass2() throws CompileException
      Throws:
      CompileException
    • getAccess

      public abstract Access getAccess()
    • isFinal

      public abstract boolean isFinal()
      Whether subclassing is allowed (JVMS 4.1 access_flags)
      Returns:
      true if subclassing is prohibited
    • getInterfaces

      public final IClass[] getInterfaces() throws CompileException
      Returns the interfaces implemented by the class.
      Returns the superinterfaces of the interface.
      Returns "Cloneable" and "Serializable" for arrays.
      Returns an empty array for primitive types and "void".
      Throws:
      CompileException
    • getInterfaces2

      protected abstract IClass[] getInterfaces2() throws CompileException
      Throws:
      CompileException
    • isAbstract

      public abstract boolean isAbstract()
      Whether the class may be instantiated (JVMS 4.1 access_flags)
      Returns:
      true if instantiation is prohibited
    • getDescriptor

      public final String getDescriptor()
      Returns the field descriptor for the type as defined by JVMS 4.3.2.
    • getDescriptor2

      protected abstract String getDescriptor2()
    • getDescriptors

      public static String[] getDescriptors(IClass[] iClasses)
      Convenience method that determines the field descriptors of an array of IClasses.
      See Also:
    • isInterface

      public abstract boolean isInterface()
      Returns "true" if this type represents an interface.
    • isArray

      public abstract boolean isArray()
      Returns "true" if this type represents an array.
    • isPrimitive

      public abstract boolean isPrimitive()
      Returns "true" if this type represents a primitive type or "void".
    • isPrimitiveNumeric

      public abstract boolean isPrimitiveNumeric()
      Returns "true" if this type represents "byte", "short", "int", "long", "char", "float" or "double".
    • getComponentType

      public final IClass getComponentType()
      Returns the component type of the array.
      Returns "null" for classes, interfaces, primitive types and "void".
    • getComponentType2

      protected abstract IClass getComponentType2()
    • toString

      public String toString()
      Overrides:
      toString in class Object
    • isAssignableFrom

      public boolean isAssignableFrom(IClass that) throws CompileException
      Determine if "this" is assignable from "that". This is true if "this" is identical with "that" (JLS2 5.1.1), or if "that" is widening-primitive-convertible to "this" (JLS2 5.1.2), or if "that" is widening-reference-convertible to "this" (JLS2 5.1.4).
      Throws:
      CompileException
    • isSubclassOf

      public boolean isSubclassOf(IClass that) throws CompileException
      Returns true if this class is an immediate or non-immediate subclass of that class.
      Throws:
      CompileException
    • implementsInterface

      public boolean implementsInterface(IClass that) throws CompileException
      If this represents a class: Return true if this class directly or indirectly implements that interface.

      If this represents an interface: Return true if this interface directly or indirectly extends that interface.

      Throws:
      CompileException
    • getArrayIClass

      public IClass getArrayIClass(int n, IClass objectType)
      Get an IClass that represents an n-dimensional array of this type.
      Parameters:
      n - dimension count
      objectType - Required because the superclass of an array class is Object by definition
    • getArrayIClass

      public IClass getArrayIClass(IClass objectType)
      Get an IClass that represents an array of this type.
      Parameters:
      objectType - Required because the superclass of an array class is Object by definition
    • invalidateMethodCaches

      public void invalidateMethodCaches()