Enum Class IntegerConstant
- All Implemented Interfaces:
Serializable
,Comparable<IntegerConstant>
,Constable
,StackManipulation
This class is responsible for loading any
int
constant onto the operand stack. Note that within the JVM,
boolean
, byte
, short
and char
values are represented by integers and can therefore
be loaded by using this class.-
Nested Class Summary
Nested ClassesModifier and TypeClassDescriptionprotected static class
A stack manipulation that loads a JVM-integer value from a constant pool value onto the operand stack.protected static class
A stack manipulation that loads a JVM-integer value by aBIPUSH
operation which is legal for single byte integer values.protected static class
A stack manipulation that loads a JVM-integer value by aSIPUSH
operation which is legal for up to two byte integer values.Nested classes/interfaces inherited from class java.lang.Enum
Enum.EnumDesc<E extends Enum<E>>
Nested classes/interfaces inherited from interface net.bytebuddy.implementation.bytecode.StackManipulation
StackManipulation.AbstractBase, StackManipulation.Compound, StackManipulation.Illegal, StackManipulation.Simple, StackManipulation.Size, StackManipulation.Trivial
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Enum Constant Summary
Enum ConstantsEnum ConstantDescriptionA JVM-typeint
constant of value5
.A JVM-typeint
constant of value4
.A JVM-typeint
constant of value-1
.A JVM-typeint
constant of value1
.A JVM-typeint
constant of value3
.A JVM-typeint
constant of value2
.A JVM-typeint
constant of value0
. -
Field Summary
FieldsModifier and TypeFieldDescriptionprivate final int
The shortcut opcode for loading a commonint
-compatible JVM value onto the operand stack.private static final StackManipulation.Size
The size impact of loading anint
value onto the operand stack. -
Constructor Summary
ConstructorsModifierConstructorDescriptionprivate
IntegerConstant
(int opcode) Creates a new JVM-integer constant loading stack manipulation for a given shortcut opcode. -
Method Summary
Modifier and TypeMethodDescriptionapply
(org.objectweb.asm.MethodVisitor methodVisitor, Implementation.Context implementationContext) Applies the stack manipulation that is described by this instance.static StackManipulation
forValue
(boolean value) Creates a stack manipulation for loading a boolean value onto the stack.static StackManipulation
forValue
(int value) Creates a stack manipulation for loading anint
value onto the stack.boolean
isValid()
Determines if this stack manipulation is valid.static IntegerConstant
Returns the enum constant of this class with the specified name.static IntegerConstant[]
values()
Returns an array containing the constants of this enum class, in the order they are declared.
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Enum Constant Details
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MINUS_ONE
A JVM-typeint
constant of value-1
. -
ZERO
A JVM-typeint
constant of value0
. -
ONE
A JVM-typeint
constant of value1
. -
TWO
A JVM-typeint
constant of value2
. -
THREE
A JVM-typeint
constant of value3
. -
FOUR
A JVM-typeint
constant of value4
. -
FIVE
A JVM-typeint
constant of value5
.
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Field Details
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SIZE
The size impact of loading anint
value onto the operand stack. -
opcode
private final int opcodeThe shortcut opcode for loading a commonint
-compatible JVM value onto the operand stack.
-
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Constructor Details
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IntegerConstant
private IntegerConstant(int opcode) Creates a new JVM-integer constant loading stack manipulation for a given shortcut opcode.- Parameters:
opcode
- The shortcut opcode for loading a commonint
-compatible JVM value onto the operand stack.
-
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Method Details
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values
Returns an array containing the constants of this enum class, in the order they are declared.- Returns:
- an array containing the constants of this enum class, in the order they are declared
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valueOf
Returns the enum constant of this class with the specified name. The string must match exactly an identifier used to declare an enum constant in this class. (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:
IllegalArgumentException
- if this enum class has no constant with the specified nameNullPointerException
- if the argument is null
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forValue
Creates a stack manipulation for loading a boolean value onto the stack.- Parameters:
value
- Theboolean
to load onto the stack.- Returns:
- The stack manipulation for loading this
boolean
.
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forValue
Creates a stack manipulation for loading anint
value onto the stack.- Parameters:
value
- Theint
(orbyte
,short
,char
) value to load onto the stack.- Returns:
- A stack manipulation for loading the given value.
-
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.
-
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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