Struct JumpTable

pub struct JumpTable { /* private fields */ }

A table of valid jump destinations. Cheap to clone and memory efficient, one bit per opcode.

Implementations

impl JumpTable

pub fn new(jumps: BitVec<u8>) -> Self

Create new JumpTable directly from an existing BitVec.

pub fn as_slice(&self) -> &[u8]

Gets the raw bytes of the jump map.

pub fn len(&self) -> usize

Gets the length of the jump map.

pub fn is_empty(&self) -> bool

Returns true if the jump map is empty.

pub fn from_slice(slice: &[u8], bit_len: usize) -> Self

Constructs a jump map from raw bytes and length.

Bit length represents number of used bits inside slice.

Panics

Panics if number of bits in slice is less than bit_len.

pub fn is_valid(&self, pc: usize) -> bool

Checks if pc is a valid jump destination. Uses cached pointer and bit operations for faster access

Trait Implementations

impl Clone for JumpTable

fn clone(&self) -> JumpTable

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for JumpTable

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

Formats the value using the given formatter.

impl Default for JumpTable

fn default() -> Self

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for JumpTable

fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>

where D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Hash for JumpTable

fn hash<H: Hasher>(&self, state: &mut H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl Ord for JumpTable

fn cmp(&self, other: &JumpTable) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl PartialEq for JumpTable

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

Tests for self and other values to be equal, and is used by ==.

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

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

impl PartialOrd for JumpTable

fn partial_cmp(&self, other: &JumpTable) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

Tests less than (for self and other) and is used by the < operator.

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

Tests less than or equal to (for self and other) and is used by the <= operator.

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

Tests greater than (for self and other) and is used by the > operator.

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

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl Serialize for JumpTable

fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>

where S: Serializer,

Serialize this value into the given Serde serializer.

impl Eq for JumpTable

impl Send for JumpTable

impl Sync for JumpTable