Enum aluvm::isa::DeleteFlag

pub enum DeleteFlag {
    None,
    Zero,
    Cut,
    Extend,
}

Flags for bytestring delete operation. For the detailed description please read crate::isa::BytesOp::Del.

Variants

None

Set destination to None on any failure.

Matches case (1) in crate::isa::BytesOp::Del description

Zero

Set destination to zero-length string if offset_start > src_len.

Matches case (2) in crate::isa::BytesOp::Del description

Cut

Set destination to the fragment of the string offset_start..src_len if offset_end > src_len && offser_start <= src_len.

Matches case (3) in crate::isa::BytesOp::Del description

Extend

Set destination to the fragment of the string offset_start..src_len and extend its length up to offset_end - offset_start with trailing zeros if offset_end > src_len && offser_start <= src_len.

Matches case (4) in crate::isa::BytesOp::Del description

Implementations

impl DeleteFlag

pub fn from_u2(val: u2) -> Self

Constructs delete operation flag from u2 value (used in bytecode serialization)

pub fn as_u2(self) -> u2

Returns u2 representation of delete operation flag (used in bytecode serialization).

Trait Implementations

impl Clone for DeleteFlag

fn clone(&self) -> DeleteFlag

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for DeleteFlag

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

Formats the value using the given formatter.

impl Display for DeleteFlag

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

Formats the value using the given formatter.

impl From<&'_ DeleteFlag> for u2

fn from(flag: &DeleteFlag) -> u2

Performs the conversion.

impl From<DeleteFlag> for u2

fn from(flag: DeleteFlag) -> u2

Performs the conversion.

impl From<u2> for DeleteFlag

fn from(val: u2) -> Self

Performs the conversion.

impl FromStr for DeleteFlag

type Err = ParseFlagError

The associated error which can be returned from parsing.

fn from_str(s: &str) -> Result<Self, Self::Err>

Parses a string s to return a value of this type.

impl Hash for DeleteFlag

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, 

Feeds a slice of this type into the given Hasher.

impl Ord for DeleteFlag

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

This method returns an Ordering between self and other.

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

Compares and returns the maximum of two values.

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

Compares and returns the minimum of two values.

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

Restrict a value to a certain interval.

impl PartialEq<DeleteFlag> for DeleteFlag

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

This method tests for self and other values to be equal, and is used by ==.

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

This method tests for !=.

impl PartialOrd<DeleteFlag> for DeleteFlag

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

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

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

This method tests less than (for self and other) and is used by the < operator.

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

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

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

This method tests greater than (for self and other) and is used by the > operator.

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

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

impl Copy for DeleteFlag

impl Eq for DeleteFlag

impl StructuralEq for DeleteFlag

impl StructuralPartialEq for DeleteFlag