Enum DefaultValue
- java.lang.Object
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- java.lang.Enum<DefaultValue>
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- net.bytebuddy.implementation.bytecode.constant.DefaultValue
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- All Implemented Interfaces:
java.io.Serializable
,java.lang.Comparable<DefaultValue>
,StackManipulation
public enum DefaultValue extends java.lang.Enum<DefaultValue> implements StackManipulation
Represents a stack assignment that loads the default value of a given type onto the stack.
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Nested Class Summary
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Nested classes/interfaces inherited from interface net.bytebuddy.implementation.bytecode.StackManipulation
StackManipulation.Compound, StackManipulation.Illegal, StackManipulation.Size, StackManipulation.Trivial
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Enum Constant Summary
Enum Constants Enum Constant Description DOUBLE
The default value of adouble
.FLOAT
The default value of afloat
.INTEGER
The default value of a JVM integer which covers Java'sint
,boolean
,byte
,short
andchar
values.LONG
The default value of along
.REFERENCE
The default value of a reference type which resembles thenull
reference.VOID
The default value of avoid
which resembles a no-op manipulation.
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Field Summary
Fields Modifier and Type Field Description private StackManipulation
stackManipulation
The stack manipulation that represents the loading of a given default value onto the operand stack.
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Constructor Summary
Constructors Modifier Constructor Description private
DefaultValue(StackManipulation stackManipulation)
Creates a new default value load operation.
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Method Summary
All Methods Static Methods Instance Methods Concrete Methods Modifier and Type Method Description StackManipulation.Size
apply(org.objectweb.asm.MethodVisitor methodVisitor, Implementation.Context implementationContext)
Applies the stack manipulation that is described by this instance.boolean
isValid()
Determines if this stack manipulation is valid.static StackManipulation
of(TypeDefinition typeDefinition)
Creates a stack assignment that loads the default value for a given type.static DefaultValue
valueOf(java.lang.String name)
Returns the enum constant of this type with the specified name.static DefaultValue[]
values()
Returns an array containing the constants of this enum type, in the order they are declared.
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Enum Constant Detail
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INTEGER
public static final DefaultValue INTEGER
The default value of a JVM integer which covers Java'sint
,boolean
,byte
,short
andchar
values.
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LONG
public static final DefaultValue LONG
The default value of along
.
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FLOAT
public static final DefaultValue FLOAT
The default value of afloat
.
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DOUBLE
public static final DefaultValue DOUBLE
The default value of adouble
.
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VOID
public static final DefaultValue VOID
The default value of avoid
which resembles a no-op manipulation.
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REFERENCE
public static final DefaultValue REFERENCE
The default value of a reference type which resembles thenull
reference.
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Field Detail
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stackManipulation
private final StackManipulation stackManipulation
The stack manipulation that represents the loading of a given default value onto the operand stack.
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Constructor Detail
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DefaultValue
private DefaultValue(StackManipulation stackManipulation)
Creates a new default value load operation.- Parameters:
stackManipulation
- The stack manipulation that represents the loading of a given default value onto the operand stack.
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Method Detail
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values
public static DefaultValue[] values()
Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:for (DefaultValue c : DefaultValue.values()) System.out.println(c);
- Returns:
- an array containing the constants of this enum type, in the order they are declared
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valueOf
public static DefaultValue valueOf(java.lang.String name)
Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)- Parameters:
name
- the name of the enum constant to be returned.- Returns:
- the enum constant with the specified name
- Throws:
java.lang.IllegalArgumentException
- if this enum type has no constant with the specified namejava.lang.NullPointerException
- if the argument is null
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of
public static StackManipulation of(TypeDefinition typeDefinition)
Creates a stack assignment that loads the default value for a given type.- Parameters:
typeDefinition
- The type for which a default value should be loaded onto the operand stack.- Returns:
- A stack manipulation loading the default value for the given type.
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isValid
public boolean isValid()
Determines if this stack manipulation is valid.- Specified by:
isValid
in interfaceStackManipulation
- Returns:
- If
false
, this manipulation cannot be applied and should throw an exception.
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apply
public StackManipulation.Size apply(org.objectweb.asm.MethodVisitor methodVisitor, Implementation.Context implementationContext)
Applies the stack manipulation that is described by this instance.- Specified by:
apply
in interfaceStackManipulation
- 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.
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