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ConstantPoolInfo

Enum ConstantPoolInfo

pub enum ConstantPoolInfo<'a> {
Show 14 variants    Utf8 {
        bytes: Cesu8Bytes<'a>,
    },
    Integer {
        value: i32,
    },
    Float {
        value: f32,
    },
    Long {
        value: i64,
    },
    Double {
        value: f64,
    },
    Class {
        name_index: CpIndex,
    },
    String {
        string_index: CpIndex,
    },
    FieldRef {
        class_index: CpIndex,
        name_and_type_index: CpIndex,
    },
    MethodRef {
        class_index: CpIndex,
        name_and_type_index: CpIndex,
    },
    InterfaceMethodRef {
        class_index: CpIndex,
        name_and_type_index: CpIndex,
    },
    NameAndType {
        name_index: CpIndex,
        descriptor_index: CpIndex,
    },
    MethodHandle {
        reference_kind: ReferenceKind,
        reference_index: CpIndex,
    },
    MethodType {
        descriptor_index: CpIndex,
    },
    InvokeDynamic {
        bootstrap_method_attr_index: u16,
        name_and_type_index: CpIndex,
    },
}

Expand description

A single constant pool entry.

See JVMS §4.4.

Variants§

Utf8

Fields

§bytes: Cesu8Bytes<'a>

Integer

Fields

§value: i32

Float

Fields

§value: f32

Long

Fields

§value: i64

Double

Fields

§value: f64

Class

Fields

§name_index: CpIndex

String

Fields

§string_index: CpIndex

FieldRef

Fields

§class_index: CpIndex

§name_and_type_index: CpIndex

MethodRef

Fields

§class_index: CpIndex

§name_and_type_index: CpIndex

InterfaceMethodRef

Fields

§class_index: CpIndex

§name_and_type_index: CpIndex

NameAndType

Fields

§name_index: CpIndex

§descriptor_index: CpIndex

MethodHandle

Fields

§reference_kind: ReferenceKind

§reference_index: CpIndex

MethodType

Fields

§descriptor_index: CpIndex

InvokeDynamic

Fields

§bootstrap_method_attr_index: u16

§name_and_type_index: CpIndex

Implementations§

impl<'a> ConstantPoolInfo<'a>

pub fn slot_width(&self) -> u16

Number of pool slots this entry occupies (2 for Long and Double).

pub fn kind(&self) -> &'static str

Name of this entry’s kind, used in error messages.

Trait Implementations§

impl<'a> Debug for ConstantPoolInfo<'a>

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

Formats the value using the given formatter. Read more

Auto Trait Implementations§

impl<'a> Freeze for ConstantPoolInfo<'a>

impl<'a> RefUnwindSafe for ConstantPoolInfo<'a>

impl<'a> Send for ConstantPoolInfo<'a>

impl<'a> Sync for ConstantPoolInfo<'a>

impl<'a> Unpin for ConstantPoolInfo<'a>

impl<'a> UnsafeUnpin for ConstantPoolInfo<'a>

impl<'a> UnwindSafe for ConstantPoolInfo<'a>

Blanket Implementations§

impl<T> Any for T
where T: 'static + ?Sized,

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

impl<T> Borrow<T> for T
where T: ?Sized,

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

impl<T> BorrowMut<T> for T
where T: ?Sized,

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

impl<T> From<T> for T

fn from(t: T) -> T

Returns the argument unchanged.

impl<T, U> Into<U> for T
where U: From<T>,

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

impl<T, U> TryFrom<U> for T
where U: Into<T>,

type Error = !

The type returned in the event of a conversion error.

fn try_from(value: U) -> Result<T, !>

Performs the conversion.

impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.