Struct ConstantPool 

pub struct ConstantPool<'a> { /* private fields */ }

Constant pool of a class file, indexed from 1.

Long and Double constants take two slots; the second one is unusable.

See JVMS §4.4.

Implementations

impl<'a> ConstantPool<'a>

pub fn len(&self) -> usize

Returns the number of slots, including the reserved slot 0.

pub fn is_empty(&self) -> bool

Returns true if the pool holds no entries.

pub fn iter(&self) -> impl Iterator<Item = (CpIndex, &ConstantPoolInfo<'a>)>

Iterates over the usable entries together with their indices.

pub fn get(&self, index: CpIndex) -> Result<&ConstantPoolInfo<'a>>

Returns the entry at index.

pub fn class_name_index(&self, index: CpIndex) -> Result<CpIndex>

Returns the name index of the Class entry at index.

pub fn utf8(&self, index: CpIndex) -> Result<Cesu8Bytes<'a>>

Returns the raw bytes of the Utf8 entry at index.

pub fn str(&self, index: CpIndex) -> Result<Cow<'a, str>>

Returns the decoded Utf8 entry at index.

pub fn name_and_type(&self, index: CpIndex) -> Result<(CpIndex, CpIndex)>

Returns the name and descriptor indices of the NameAndType entry at index.

pub fn expect_constant_value(&self, index: CpIndex) -> Result<()>

Checks that index refers to an entry usable as a ConstantValue.

Trait Implementations

impl Debug for ConstantPool<'_>

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

Formats the value using the given formatter.