Struct ConstantPoolBuilder 

pub struct ConstantPoolBuilder { /* private fields */ }

A builder for the constant pool of a class.

This struct manages the deduplication of constant pool entries, ensuring that strings, classes, and member references are stored efficiently.

Implementations

impl ConstantPoolBuilder

pub fn new() -> Self

Creates a new, empty ConstantPoolBuilder.

The constant pool starts with a dummy entry at index 0, as per JVM spec.

pub fn into_pool(self) -> Vec<CpInfo>

Consumes the builder and returns the raw vector of CpInfo entries.

pub fn utf8(&mut self, value: &str) -> u16

Adds a UTF-8 string to the constant pool if it doesn’t exist.

Returns the index of the entry.

pub fn class(&mut self, name: &str) -> u16

Adds a Class constant to the pool.

This will recursively add the UTF-8 name of the class.

pub fn string(&mut self, value: &str) -> u16

Adds a String constant to the pool.

This is for string literals (e.g., ldc "foo").

pub fn integer(&mut self, value: i32) -> u16

pub fn float(&mut self, value: f32) -> u16

pub fn long(&mut self, value: i64) -> u16

pub fn double(&mut self, value: f64) -> u16

pub fn name_and_type(&mut self, name: &str, descriptor: &str) -> u16

Adds a NameAndType constant to the pool.

Used for field and method descriptors.

pub fn field_ref(&mut self, owner: &str, name: &str, descriptor: &str) -> u16

Adds a Fieldref constant to the pool.

pub fn method_ref(&mut self, owner: &str, name: &str, descriptor: &str) -> u16

Adds a Methodref constant to the pool.

Trait Implementations

impl Debug for ConstantPoolBuilder

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

Formats the value using the given formatter.

impl Default for ConstantPoolBuilder

fn default() -> ConstantPoolBuilder

Returns the “default value” for a type.