Class TypeReference

java.lang.Object
com.ibm.wala.types.TypeReference
All Implemented Interfaces:
Serializable
public final class TypeReference extends Object implements Serializable
A class to represent the reference in a class file to some type (class, primitive or array). A type reference is uniquely defined by
  • an initiating class loader
  • a type name
Resolving a TypeReference to a Type can be an expensive operation. Therefore we canonicalize TypeReference instances and cache the result of resolution.
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  • Field Details

    • BooleanName

      public static final TypeName BooleanName

    • BooleanTypeCode

      public static final byte BooleanTypeCode
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    • Boolean

      public static final TypeReference Boolean

    • ByteName

      public static final TypeName ByteName

    • ByteTypeCode

      public static final byte ByteTypeCode
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    • Byte

      public static final TypeReference Byte

    • CharName

      public static final TypeName CharName

    • CharTypeCode

      public static final byte CharTypeCode
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    • Char

      public static final TypeReference Char

    • DoubleName

      public static final TypeName DoubleName

    • DoubleTypeCode

      public static final byte DoubleTypeCode
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    • Double

      public static final TypeReference Double

    • FloatName

      public static final TypeName FloatName

    • FloatTypeCode

      public static final byte FloatTypeCode
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    • Float

      public static final TypeReference Float

    • IntName

      public static final TypeName IntName

    • IntTypeCode

      public static final byte IntTypeCode
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    • Int

      public static final TypeReference Int

    • LongName

      public static final TypeName LongName

    • LongTypeCode

      public static final byte LongTypeCode
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    • Long

      public static final TypeReference Long

    • ShortName

      public static final TypeName ShortName

    • ShortTypeCode

      public static final byte ShortTypeCode
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    • Short

      public static final TypeReference Short

    • VoidName

      public static final TypeName VoidName

    • VoidTypeCode

      public static final byte VoidTypeCode
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    • Void

      public static final TypeReference Void

    • OtherPrimitiveTypeCode

      public static final byte OtherPrimitiveTypeCode
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    • BooleanArray

      public static final TypeReference BooleanArray

    • ByteArray

      public static final TypeReference ByteArray

    • CharArray

      public static final TypeReference CharArray

    • DoubleArray

      public static final TypeReference DoubleArray

    • FloatArray

      public static final TypeReference FloatArray

    • IntArray

      public static final TypeReference IntArray

    • LongArray

      public static final TypeReference LongArray

    • ShortArray

      public static final TypeReference ShortArray

    • JavaLangArithmeticException

      public static final TypeReference JavaLangArithmeticException

    • JavaLangArrayStoreException

      public static final TypeReference JavaLangArrayStoreException

    • JavaLangArrayIndexOutOfBoundsException

      public static final TypeReference JavaLangArrayIndexOutOfBoundsException

    • JavaLangClass

      public static final TypeReference JavaLangClass

    • JavaLangInvokeMethodHandle

      public static final TypeReference JavaLangInvokeMethodHandle

    • JavaLangInvokeMethodHandlesLookup

      public static final TypeReference JavaLangInvokeMethodHandlesLookup

    • JavaLangInvokeMethodType

      public static final TypeReference JavaLangInvokeMethodType

    • JavaLangClassCastException

      public static final TypeReference JavaLangClassCastException

    • JavaLangComparable

      public static final TypeReference JavaLangComparable

    • JavaLangReflectConstructor

      public static final TypeReference JavaLangReflectConstructor

    • JavaLangReflectMethod

      public static final TypeReference JavaLangReflectMethod

    • JavaLangEnum

      public static final TypeReference JavaLangEnum

    • JavaLangError

      public static final TypeReference JavaLangError

    • JavaLangException

      public static final TypeReference JavaLangException

    • JavaLangNegativeArraySizeException

      public static final TypeReference JavaLangNegativeArraySizeException

    • JavaLangNullPointerException

      public static final TypeReference JavaLangNullPointerException

    • JavaLangRuntimeException

      public static final TypeReference JavaLangRuntimeException

    • JavaLangClassNotFoundException

      public static final TypeReference JavaLangClassNotFoundException

    • JavaLangOutOfMemoryError

      public static final TypeReference JavaLangOutOfMemoryError

    • JavaLangExceptionInInitializerError

      public static final TypeReference JavaLangExceptionInInitializerError

    • JavaLangObject

      public static final TypeReference JavaLangObject

    • JavaLangStackTraceElement

      public static final TypeReference JavaLangStackTraceElement

    • JavaLangString

      public static final TypeReference JavaLangString

    • JavaLangStringBuffer

      public static final TypeReference JavaLangStringBuffer

    • JavaLangStringBuilder

      public static final TypeReference JavaLangStringBuilder

    • JavaLangThread

      public static final TypeReference JavaLangThread

    • JavaLangThrowable

      public static final TypeReference JavaLangThrowable

    • JavaLangCloneableName

      public static final TypeName JavaLangCloneableName

    • JavaLangCloneable

      public static final TypeReference JavaLangCloneable

    • JavaLangSystem

      public static final TypeReference JavaLangSystem

    • JavaLangInteger

      public static final TypeReference JavaLangInteger

    • JavaLangBoolean

      public static final TypeReference JavaLangBoolean

    • JavaLangDouble

      public static final TypeReference JavaLangDouble

    • JavaLangFloat

      public static final TypeReference JavaLangFloat

    • JavaLangShort

      public static final TypeReference JavaLangShort

    • JavaLangLong

      public static final TypeReference JavaLangLong

    • JavaLangByte

      public static final TypeReference JavaLangByte

    • JavaLangCharacter

      public static final TypeReference JavaLangCharacter

    • JavaIoSerializableName

      public static final TypeName JavaIoSerializableName

    • JavaIoSerializable

      public static final TypeReference JavaIoSerializable

    • JavaUtilCollection

      public static final TypeReference JavaUtilCollection

    • JavaUtilMap

      public static final TypeReference JavaUtilMap

    • JavaUtilHashSet

      public static final TypeReference JavaUtilHashSet

    • JavaUtilSet

      public static final TypeReference JavaUtilSet

    • JavaUtilEnum

      public static final TypeReference JavaUtilEnum

    • JavaUtilIterator

      public static final TypeReference JavaUtilIterator

    • JavaUtilVector

      public static final TypeReference JavaUtilVector

    • ClassTypeCode

      public static final byte ClassTypeCode
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    • ArrayTypeCode

      public static final byte ArrayTypeCode
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    • PointerTypeCode

      public static final byte PointerTypeCode
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    • ReferenceTypeCode

      public static final byte ReferenceTypeCode
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    • Null

      public static final TypeReference Null

    • Unknown

      public static final TypeReference Unknown

    • LambdaMetaFactory

      public static final TypeReference LambdaMetaFactory

  • Method Details

    • makePrimitive

      public static TypeReference makePrimitive(ClassLoaderReference cl, TypeName n)

    • isPrimitiveType

      public static boolean isPrimitiveType(TypeName name)
      Could name a represent a primitive type?

    • findOrCreate

      public static TypeReference findOrCreate(ClassLoaderReference cl, TypeName typeName)
      Find or create the canonical TypeReference instance for the given pair.
      Parameters:
      cl - the classloader (defining/initiating depending on usage)

    • findOrCreate

      public static TypeReference findOrCreate(ClassLoaderReference cl, String typeName)
      Find or create the canonical TypeReference instance for the given pair.
      Parameters:
      cl - the classloader (defining/initiating depending on usage)
      typeName - something like "Ljava/util/Arrays"

    • find

      public static TypeReference find(ClassLoaderReference cl, String typeName)

    • find

      public static TypeReference find(ClassLoaderReference cl, TypeName typeName)
      Find the canonical TypeReference instance for the given pair. May return null.
      Parameters:
      cl - the classloader (defining/initiating depending on usage)

    • findOrCreateArrayOf

      public static TypeReference findOrCreateArrayOf(TypeReference t)

    • findOrCreateReferenceTo

      public static TypeReference findOrCreateReferenceTo(TypeReference t)

    • findOrCreatePointerTo

      public static TypeReference findOrCreatePointerTo(TypeReference t)

    • getClassLoader

      public ClassLoaderReference getClassLoader()
      Returns:
      the classloader component of this type reference

    • getName

      public TypeName getName()
      Returns:
      the type name component of this type reference

    • getArrayElementType

      public TypeReference getArrayElementType()
      TODO: specialized form of TypeReference for arrays, please. Get the element type of for this array type.

    • getArrayTypeForElementType

      public TypeReference getArrayTypeForElementType()
      Get array type corresponding to "this" array element type.

    • getDerivedMask

      public int getDerivedMask()
      Return the dimensionality of the type. By convention, class types have dimensionality 0, primitives -1, and arrays the number of [ in their descriptor.

    • getInnermostElementType

      public TypeReference getInnermostElementType()
      Return the innermost element type reference for an array

    • isClassType

      public boolean isClassType()
      Does 'this' refer to a class?

    • isArrayType

      public boolean isArrayType()
      Does 'this' refer to an array?

    • isPrimitiveType

      public boolean isPrimitiveType()
      Does 'this' refer to a primitive type

    • isReferenceType

      public boolean isReferenceType()
      Does 'this' refer to a reference type

    • hashCode

      public int hashCode()
      Overrides:
      hashCode in class Object

    • equals

      public boolean equals(Object other)
      TypeReferences are canonical. However, note that two TypeReferences can be non-equal, yet still represent the same IClass.

      For example, the there can be two TypeReferences <Application,java.lang.Object> and <Primordial,java.lang.Object>. These two TypeReference are NOT equal(), but they both represent the IClass which is named <Primordial,java.lang.Object>

      Overrides:
      equals in class Object

    • toString

      public String toString()
      Overrides:
      toString in class Object

    • findOrCreateClass

      public static TypeReference findOrCreateClass(ClassLoaderReference loader, String packageName, String className)

    • getDimensionality

      public int getDimensionality()