Struct IndexRange 

pub struct IndexRange {
    pub begin_index: Option<i32>,
    pub end_index: Option<i32>,
}

This is a space optimization. The instructions for an individual basic block will usually be in a continuous index range. Thus it is more efficient to store the range instead of individual indices. However, this does not hold true for all basic blocks, so we need to be able to store multiple index ranges per block.

Fields

begin_index: Option<i32>

These work like begin and end iterators, i.e. the sequence is [begin_index, end_index). If the sequence only contains a single element end_index will be omitted.

end_index: Option<i32>

Implementations

impl IndexRange

pub fn begin_index(&self) -> i32

Returns the value of begin_index, or the default value if begin_index is unset.

pub fn end_index(&self) -> i32

Returns the value of end_index, or the default value if end_index is unset.

Trait Implementations

impl Clone for IndexRange

fn clone(&self) -> IndexRange

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for IndexRange

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

Formats the value using the given formatter.

impl Default for IndexRange

fn default() -> Self

Returns the “default value” for a type.

impl Message for IndexRange

fn encoded_len(&self) -> usize

Returns the encoded length of the message without a length delimiter.

fn clear(&mut self)

Clears the message, resetting all fields to their default.

fn encode(&self, buf: &mut impl BufMut) -> Result<(), EncodeError>

where Self: Sized,

Encodes the message to a buffer.

fn encode_to_vec(&self) -> Vec<u8>

where Self: Sized,

Encodes the message to a newly allocated buffer.

fn encode_length_delimited( &self, buf: &mut impl BufMut, ) -> Result<(), EncodeError>

where Self: Sized,

Encodes the message with a length-delimiter to a buffer.

fn encode_length_delimited_to_vec(&self) -> Vec<u8>

where Self: Sized,

Encodes the message with a length-delimiter to a newly allocated buffer.

fn decode(buf: impl Buf) -> Result<Self, DecodeError>

where Self: Default,

Decodes an instance of the message from a buffer.

fn decode_length_delimited(buf: impl Buf) -> Result<Self, DecodeError>

where Self: Default,

Decodes a length-delimited instance of the message from the buffer.

fn merge(&mut self, buf: impl Buf) -> Result<(), DecodeError>

where Self: Sized,

Decodes an instance of the message from a buffer, and merges it into self.

fn merge_length_delimited(&mut self, buf: impl Buf) -> Result<(), DecodeError>

where Self: Sized,

Decodes a length-delimited instance of the message from buffer, and merges it into self.

impl PartialEq for IndexRange

fn eq(&self, other: &IndexRange) -> 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 Copy for IndexRange

impl StructuralPartialEq for IndexRange