Enum ConstantRef 

pub enum ConstantRef<'a> {
    Unusable,
    Utf8(&'a str),
    Integer(i32),
    Float(f32),
    Long(i64),
    Double(f64),
    Class {
        name: ConstantPoolIndex,
    },
    String {
        value: ConstantPoolIndex,
    },
    FieldReference {
        class: ConstantPoolIndex,
        name_and_type: ConstantPoolIndex,
    },
    MethodReference {
        class: ConstantPoolIndex,
        name_and_type: ConstantPoolIndex,
    },
    InterfaceMethodReference {
        class: ConstantPoolIndex,
        name_and_type: ConstantPoolIndex,
    },
    NameAndType {
        name: ConstantPoolIndex,
        descriptor: ConstantPoolIndex,
    },
    MethodHandle {
        reference_kind: u8,
        reference: ConstantPoolIndex,
    },
    MethodType {
        descriptor: ConstantPoolIndex,
    },
    Dynamic {
        bootstrap_method: u16,
        name_and_type: ConstantPoolIndex,
    },
    InvokeDynamic {
        bootstrap_method: u16,
        name_and_type: ConstantPoolIndex,
    },
    Module {
        name: ConstantPoolIndex,
    },
    Package {
        name: ConstantPoolIndex,
    },
}

A borrowed view of one constant-pool entry.

Index-bearing variants retain their raw class-file indices instead of resolving or rewriting the referenced entries.

Variants

Unusable

A reserved constant-pool slot with no value.

Utf8(&'a str)

A modified UTF-8 string decoded by the underlying parser.

Integer(i32)

A 32-bit integer literal.

Float(f32)

A 32-bit floating-point literal.

Long(i64)

A 64-bit integer literal.

Double(f64)

A 64-bit floating-point literal.

Class

A class reference whose name is stored in another constant-pool entry.

Fields

name: ConstantPoolIndex

Index of the UTF-8 internal class name.

String

A string constant whose value is stored in another constant-pool entry.

Fields

value: ConstantPoolIndex

Index of the UTF-8 string value.

FieldReference

A field member reference.

Fields

class: ConstantPoolIndex

Index of the declaring class entry.

name_and_type: ConstantPoolIndex

Index of the member name-and-descriptor entry.

MethodReference

A class method reference.

Fields

class: ConstantPoolIndex

Index of the declaring class entry.

name_and_type: ConstantPoolIndex

Index of the member name-and-descriptor entry.

InterfaceMethodReference

An interface method reference.

Fields

class: ConstantPoolIndex

Index of the declaring interface entry.

name_and_type: ConstantPoolIndex

Index of the member name-and-descriptor entry.

NameAndType

A member name and descriptor pair.

Fields

name: ConstantPoolIndex

Index of the UTF-8 member name.

descriptor: ConstantPoolIndex

Index of the UTF-8 descriptor.

MethodHandle

A method-handle constant.

Fields

reference_kind: u8

Raw JVM reference-kind value.

reference: ConstantPoolIndex

Index of the referenced field or method entry.

MethodType

A method-type constant.

Fields

descriptor: ConstantPoolIndex

Index of the UTF-8 method descriptor.

Dynamic

A dynamically computed constant.

Fields

bootstrap_method: u16

Index into the BootstrapMethods attribute.

name_and_type: ConstantPoolIndex

Index of the name-and-descriptor entry.

InvokeDynamic

An invokedynamic call-site constant.

Fields

bootstrap_method: u16

Index into the BootstrapMethods attribute.

name_and_type: ConstantPoolIndex

Index of the name-and-descriptor entry.

Module

A Java Platform Module System module constant.

Fields

name: ConstantPoolIndex

Index of the UTF-8 module name.

Package

A Java Platform Module System package constant.

Fields

name: ConstantPoolIndex

Index of the UTF-8 package name.

Trait Implementations

impl<'a> Clone for ConstantRef<'a>

fn clone(&self) -> ConstantRef<'a>

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<'a> Copy for ConstantRef<'a>

impl<'a> Debug for ConstantRef<'a>

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<'a> From<&'a CpInfo> for ConstantRef<'a>

fn from(value: &'a CpInfo) -> Self

Converts to this type from the input type.