Enum ristretto_classfile::Constant

pub enum Constant {
    Utf8(String),
    Integer(i32),
    Float(f32),
    Long(i64),
    Double(f64),
    Class {
        name_index: u16,
    },
    String {
        string_index: u16,
    },
    FieldRef {
        class_index: u16,
        name_and_type_index: u16,
    },
    MethodRef {
        class_index: u16,
        name_and_type_index: u16,
    },
    InterfaceMethodRef {
        class_index: u16,
        name_and_type_index: u16,
    },
    NameAndType {
        name_index: u16,
        descriptor_index: u16,
    },
    MethodHandle {
        reference_kind: ReferenceKind,
        reference_index: u16,
    },
    MethodType {
        descriptor_index: u16,
    },
    Dynamic {
        bootstrap_method_attr_index: u16,
        name_and_type_index: u16,
    },
    InvokeDynamic {
        bootstrap_method_attr_index: u16,
        name_and_type_index: u16,
    },
    Module {
        name_index: u16,
    },
    Package {
        name_index: u16,
    },
}

Constant

See: https://docs.oracle.com/javase/specs/jvms/se22/html/jvms-4.html#jvms-4.4

Variants

Utf8(String)

Integer(i32)

Float(f32)

Long(i64)

Double(f64)

Class

Fields

name_index: u16

String

Fields

string_index: u16

FieldRef

Fields

class_index: u16

name_and_type_index: u16

MethodRef

Fields

class_index: u16

name_and_type_index: u16

InterfaceMethodRef

Fields

class_index: u16

name_and_type_index: u16

NameAndType

Fields

name_index: u16

descriptor_index: u16

MethodHandle

Fields

reference_kind: ReferenceKind

reference_index: u16

MethodType

Fields

descriptor_index: u16

Dynamic

Fields

bootstrap_method_attr_index: u16

name_and_type_index: u16

InvokeDynamic

Fields

bootstrap_method_attr_index: u16

name_and_type_index: u16

Module

Fields

name_index: u16

Package

Fields

name_index: u16

Implementations

impl Constant

pub fn tag(&self) -> u8

Get the tag of the Constant.

pub fn valid_for_version(&self, version: &Version) -> bool

Check if the Constant is valid for the given version.

pub fn from_bytes(bytes: &mut Cursor<Vec<u8>>) -> Result<Constant>

Deserialize the Constant from bytes.

Errors

Returns an error if the tag is invalid.

pub fn to_bytes(&self, bytes: &mut Vec<u8>) -> Result<()>

Serialize the Constant to bytes.

Errors

If a UTF-8 string is more than 65535 bytes long.

Trait Implementations

impl Clone for Constant

fn clone(&self) -> Constant

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Constant

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

Formats the value using the given formatter.

impl Display for Constant

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

Formats the value using the given formatter.

impl PartialEq for Constant

fn eq(&self, other: &Constant) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for Constant