## org.objectweb.asm
Class Type

    java.lang.Object
      org.objectweb.asm.Type

public class Type
extends java.lang.Object

A Java type. This class can be used to make it easier to manipulate type and method descriptors.

Field Summary
`static int` `ARRAY` The sort of array reference types.
`static int` `BOOLEAN` The sort of the `boolean` type.
`static Type` `BOOLEAN_TYPE` The `boolean` type.
`static int` `BYTE` The sort of the `byte` type.
`static Type` `BYTE_TYPE` The `byte` type.
`static int` `CHAR` The sort of the `char` type.
`static Type` `CHAR_TYPE` The `char` type.
`static int` `DOUBLE` The sort of the `double` type.
`static Type` `DOUBLE_TYPE` The `double` type.
`static int` `FLOAT` The sort of the `float` type.
`static Type` `FLOAT_TYPE` The `float` type.
`static int` `INT` The sort of the `int` type.
`static Type` `INT_TYPE` The `int` type.
`static int` `LONG` The sort of the `long` type.
`static Type` `LONG_TYPE` The `long` type.
`static int` `OBJECT` The sort of object reference type.
`static int` `SHORT` The sort of the `short` type.
`static Type` `SHORT_TYPE` The `short` type.
`static int` `VOID` The sort of the `void` type.
`static Type` `VOID_TYPE` The `void` type.

Method Summary
`static Type[]` `getArgumentTypes(java.lang.reflect.Method method)` Returns the Java types corresponding to the argument types of the given method.
`static Type[]` `getArgumentTypes(java.lang.String methodDescriptor)` Returns the Java types corresponding to the argument types of the given method descriptor.
`java.lang.String` `getClassName()` Returns the name of the class corresponding to this object type.
`java.lang.String` `getDescriptor()` Returns the descriptor corresponding to this Java type.
`static java.lang.String` `getDescriptor(java.lang.Class c)` Returns the descriptor corresponding to the given Java type.
`int` `getDimensions()` Returns the number of dimensions of this array type.
`Type` `getElementType()` Returns the type of the elements of this array type.
`java.lang.String` `getInternalName()` Returns the internal name of the class corresponding to this object type.
`static java.lang.String` `getInternalName(java.lang.Class c)` Returns the internal name of the given class.
`static java.lang.String` `getMethodDescriptor(java.lang.reflect.Method m)` Returns the descriptor corresponding to the given method.
`static java.lang.String` `getMethodDescriptor(Type returnType, Type[] argumentTypes)` Returns the descriptor corresponding to the given argument and return types.
`int` `getOpcode(int opcode)` Returns a JVM instruction opcode adapted to this Java type.
`static Type` `getReturnType(java.lang.reflect.Method method)` Returns the Java type corresponding to the return type of the given method.
`static Type` `getReturnType(java.lang.String methodDescriptor)` Returns the Java type corresponding to the return type of the given method descriptor.
`int` `getSize()` Returns the size of values of this type.
`int` `getSort()` Returns the sort of this Java type.
`static Type` `getType(java.lang.Class c)` Returns the Java type corresponding to the given class.
`static Type` `getType(java.lang.String typeDescriptor)` Returns the Java type corresponding to the given type descriptor.

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Field Detail

### VOID

    public static final int VOID

  The sort of the `void` type. See `getSort`.

  See Also:
    Constant Field Values

### BOOLEAN

    public static final int BOOLEAN

  The sort of the `boolean` type. See `getSort`.

  See Also:
    Constant Field Values

### CHAR

    public static final int CHAR

  The sort of the `char` type. See `getSort`.

  See Also:
    Constant Field Values

### BYTE

    public static final int BYTE

  The sort of the `byte` type. See `getSort`.

  See Also:
    Constant Field Values

### SHORT

    public static final int SHORT

  The sort of the `short` type. See `getSort`.

  See Also:
    Constant Field Values

### INT

    public static final int INT

  The sort of the `int` type. See `getSort`.

  See Also:
    Constant Field Values

### FLOAT

    public static final int FLOAT

  The sort of the `float` type. See `getSort`.

  See Also:
    Constant Field Values

### LONG

    public static final int LONG

  The sort of the `long` type. See `getSort`.

  See Also:
    Constant Field Values

### DOUBLE

    public static final int DOUBLE

  The sort of the `double` type. See `getSort`.

  See Also:
    Constant Field Values

### ARRAY

    public static final int ARRAY

  The sort of array reference types. See `getSort`.

  See Also:
    Constant Field Values

### OBJECT

    public static final int OBJECT

  The sort of object reference type. See `getSort`.

  See Also:
    Constant Field Values

### VOID_TYPE

    public static final Type VOID_TYPE

  The `void` type.

### BOOLEAN_TYPE

    public static final Type BOOLEAN_TYPE

  The `boolean` type.

### CHAR_TYPE

    public static final Type CHAR_TYPE

  The `char` type.

### BYTE_TYPE

    public static final Type BYTE_TYPE

  The `byte` type.

### SHORT_TYPE

    public static final Type SHORT_TYPE

  The `short` type.

### INT_TYPE

    public static final Type INT_TYPE

  The `int` type.

### FLOAT_TYPE

    public static final Type FLOAT_TYPE

  The `float` type.

### LONG_TYPE

    public static final Type LONG_TYPE

  The `long` type.

### DOUBLE_TYPE

    public static final Type DOUBLE_TYPE

  The `double` type.

Method Detail

### getType

    public static Type getType(java.lang.String typeDescriptor)

  Returns the Java type corresponding to the given type descriptor.

  Parameters:
    `typeDescriptor` - a type descriptor.
  Returns:
    the Java type corresponding to the given type descriptor.

### getType

    public static Type getType(java.lang.Class c)

  Returns the Java type corresponding to the given class.

  Parameters:
    `c` - a class.
  Returns:
    the Java type corresponding to the given class.

### getArgumentTypes

    public static Type[] getArgumentTypes(java.lang.String methodDescriptor)

  Returns the Java types corresponding to the argument types of the given method descriptor.

  Parameters:
    `methodDescriptor` - a method descriptor.
  Returns:
    the Java types corresponding to the argument types of the given method descriptor.

### getArgumentTypes

    public static Type[] getArgumentTypes(java.lang.reflect.Method method)

  Returns the Java types corresponding to the argument types of the given method.

  Parameters:
    `method` - a method.
  Returns:
    the Java types corresponding to the argument types of the given method.

### getReturnType

    public static Type getReturnType(java.lang.String methodDescriptor)

  Returns the Java type corresponding to the return type of the given method descriptor.

  Parameters:
    `methodDescriptor` - a method descriptor.
  Returns:
    the Java type corresponding to the return type of the given method descriptor.

### getReturnType

    public static Type getReturnType(java.lang.reflect.Method method)

  Returns the Java type corresponding to the return type of the given method.

  Parameters:
    `method` - a method.
  Returns:
    the Java type corresponding to the return type of the given method.

### getSort

    public int getSort()

  Returns the sort of this Java type.

  Returns:
    `VOID`, `BOOLEAN`, `CHAR`, `BYTE`, `SHORT`, `INT`, `FLOAT`, `LONG`, `DOUBLE`, `ARRAY` or `OBJECT`.

### getDimensions

    public int getDimensions()

  Returns the number of dimensions of this array type. This method should only be used for an array type.

  Returns:
    the number of dimensions of this array type.

### getElementType

    public Type getElementType()

  Returns the type of the elements of this array type. This method should only be used for an array type.

  Returns:
    Returns the type of the elements of this array type.

### getClassName

    public java.lang.String getClassName()

  Returns the name of the class corresponding to this object type. This method should only be used for an object type.

  Returns:
    the fully qualified name of the class corresponding to this object type.

### getInternalName

    public java.lang.String getInternalName()

  Returns the internal name of the class corresponding to this object type. The internal name of a class is its fully qualified name, where '.' are replaced by '/'. * This method should only be used for an object type.

  Returns:
    the internal name of the class corresponding to this object type.

### getDescriptor

    public java.lang.String getDescriptor()

  Returns the descriptor corresponding to this Java type.

  Returns:
    the descriptor corresponding to this Java type.

### getMethodDescriptor

    public static java.lang.String getMethodDescriptor(Type returnType,
                                                       Type[] argumentTypes)

  Returns the descriptor corresponding to the given argument and return types.

  Parameters:
    `returnType` - the return type of the method.
    `argumentTypes` - the argument types of the method.
  Returns:
    the descriptor corresponding to the given argument and return types.

### getInternalName

    public static java.lang.String getInternalName(java.lang.Class c)

  Returns the internal name of the given class. The internal name of a class is its fully qualified name, where '.' are replaced by '/'.

  Parameters:
    `c` - an object class.
  Returns:
    the internal name of the given class.

### getDescriptor

    public static java.lang.String getDescriptor(java.lang.Class c)

  Returns the descriptor corresponding to the given Java type.

  Parameters:
    `c` - an object class, a primitive class or an array class.
  Returns:
    the descriptor corresponding to the given class.

### getMethodDescriptor

    public static java.lang.String getMethodDescriptor(java.lang.reflect.Method m)

  Returns the descriptor corresponding to the given method.

  Parameters:
    `m` - a `Method` object.
  Returns:
    the descriptor of the given method.

### getSize

    public int getSize()

  Returns the size of values of this type.

  Returns:
    the size of values of this type, i.e., 2 for `long` and `double`, and 1 otherwise.

### getOpcode

    public int getOpcode(int opcode)

  Returns a JVM instruction opcode adapted to this Java type.

  Parameters:
    `opcode` - a JVM instruction opcode. This opcode must be one of ILOAD, ISTORE, IALOAD, IASTORE, IADD, ISUB, IMUL, IDIV, IREM, INEG, ISHL, ISHR, IUSHR, IAND, IOR, IXOR and IRETURN.
  Returns:
    an opcode that is similar to the given opcode, but adapted to this Java type. For example, if this type is `float` and `opcode` is IRETURN, this method returns FRETURN.