Enum cranelift_codegen::data_value::DataValue

pub enum DataValue {
    B(bool),
    I8(i8),
    I16(i16),
    I32(i32),
    I64(i64),
    I128(i128),
    U8(u8),
    U16(u16),
    U32(u32),
    U64(u64),
    U128(u128),
    F32(Ieee32),
    F64(Ieee64),
    V128([u8; 16]),
}

Represent a data value. Where Value is an SSA reference, DataValue is the type + value that would be referred to by a Value.

Variants

B(bool)

I8(i8)

I16(i16)

I32(i32)

I64(i64)

I128(i128)

U8(u8)

U16(u16)

U32(u32)

U64(u64)

U128(u128)

F32(Ieee32)

F64(Ieee64)

V128([u8; 16])

Implementations

impl DataValue

pub fn from_integer(
    imm: i128,
    ty: Type
) -> Result<DataValue, DataValueCastFailure>

Try to cast an immediate integer (a wrapped i64 on most Cranelift instructions) to the given Cranelift Type.

pub fn ty(&self) -> Type

Return the Cranelift IR Type for this DataValue.

pub fn is_vector(&self) -> bool

Return true if the value is a vector (i.e. DataValue::V128).

pub fn is_bool(&self) -> bool

Return true if the value is a bool (i.e. DataValue::B).

pub fn write_to_slice(&self, dst: &mut [u8])

Write a DataValue to a slice.

Panics:

Panics if the slice does not have enough space to accommodate the DataValue

pub fn read_from_slice(src: &[u8], ty: Type) -> Self

Read a DataValue from a slice using a given Type.

Panics:

Panics if the slice does not have enough space to accommodate the DataValue

pub unsafe fn write_value_to(&self, p: *mut u128)

Write a DataValue to a memory location.

pub unsafe fn read_value_from(p: *const u128, ty: Type) -> Self

Read a DataValue from a memory location using a given Type.

Trait Implementations

impl Clone for DataValue

fn clone(&self) -> DataValue

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for DataValue

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

Formats the value using the given formatter.

impl Display for DataValue

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

Formats the value using the given formatter.

impl From<[u8; 16]> for DataValue

fn from(data: [u8; 16]) -> Self

Converts to this type from the input type.

impl From<Ieee32> for DataValue

fn from(data: Ieee32) -> Self

Converts to this type from the input type.

impl From<Ieee64> for DataValue

fn from(data: Ieee64) -> Self

Converts to this type from the input type.

impl From<Offset32> for DataValue

fn from(o: Offset32) -> Self

Converts to this type from the input type.

impl From<bool> for DataValue

fn from(data: bool) -> Self

Converts to this type from the input type.

impl From<i128> for DataValue

fn from(data: i128) -> Self

Converts to this type from the input type.

impl From<i16> for DataValue

fn from(data: i16) -> Self

Converts to this type from the input type.

impl From<i32> for DataValue

fn from(data: i32) -> Self

Converts to this type from the input type.

impl From<i64> for DataValue

fn from(data: i64) -> Self

Converts to this type from the input type.

impl From<i8> for DataValue

fn from(data: i8) -> Self

Converts to this type from the input type.

impl From<u128> for DataValue

fn from(data: u128) -> Self

Converts to this type from the input type.

impl From<u16> for DataValue

fn from(data: u16) -> Self

Converts to this type from the input type.

impl From<u32> for DataValue

fn from(data: u32) -> Self

Converts to this type from the input type.

impl From<u64> for DataValue

fn from(data: u64) -> Self

Converts to this type from the input type.

impl From<u8> for DataValue

fn from(data: u8) -> Self

Converts to this type from the input type.

impl PartialEq<DataValue> for DataValue

fn eq(&self, other: &DataValue) -> 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 !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialOrd<DataValue> for DataValue

fn partial_cmp(&self, other: &DataValue) -> 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 TryInto<[u8; 16]> for DataValue

type Error = DataValueCastFailure

The type returned in the event of a conversion error.

fn try_into(self) -> Result<[u8; 16], Self::Error>

Performs the conversion.

impl TryInto<Ieee32> for DataValue

type Error = DataValueCastFailure

The type returned in the event of a conversion error.

fn try_into(self) -> Result<Ieee32, Self::Error>

Performs the conversion.

impl TryInto<Ieee64> for DataValue

type Error = DataValueCastFailure

The type returned in the event of a conversion error.

fn try_into(self) -> Result<Ieee64, Self::Error>

Performs the conversion.

impl TryInto<bool> for DataValue

type Error = DataValueCastFailure

The type returned in the event of a conversion error.

fn try_into(self) -> Result<bool, Self::Error>

Performs the conversion.

impl TryInto<i128> for DataValue

type Error = DataValueCastFailure

The type returned in the event of a conversion error.

fn try_into(self) -> Result<i128, Self::Error>

Performs the conversion.

impl TryInto<i16> for DataValue

type Error = DataValueCastFailure

The type returned in the event of a conversion error.

fn try_into(self) -> Result<i16, Self::Error>

Performs the conversion.

impl TryInto<i32> for DataValue

type Error = DataValueCastFailure

The type returned in the event of a conversion error.

fn try_into(self) -> Result<i32, Self::Error>

Performs the conversion.

impl TryInto<i64> for DataValue

type Error = DataValueCastFailure

The type returned in the event of a conversion error.

fn try_into(self) -> Result<i64, Self::Error>

Performs the conversion.

impl TryInto<i8> for DataValue

type Error = DataValueCastFailure

The type returned in the event of a conversion error.

fn try_into(self) -> Result<i8, Self::Error>

Performs the conversion.

impl TryInto<u128> for DataValue

type Error = DataValueCastFailure

The type returned in the event of a conversion error.

fn try_into(self) -> Result<u128, Self::Error>

Performs the conversion.

impl TryInto<u16> for DataValue

type Error = DataValueCastFailure

The type returned in the event of a conversion error.

fn try_into(self) -> Result<u16, Self::Error>

Performs the conversion.

impl TryInto<u32> for DataValue

type Error = DataValueCastFailure

The type returned in the event of a conversion error.

fn try_into(self) -> Result<u32, Self::Error>

Performs the conversion.

impl TryInto<u64> for DataValue

type Error = DataValueCastFailure

The type returned in the event of a conversion error.

fn try_into(self) -> Result<u64, Self::Error>

Performs the conversion.

impl TryInto<u8> for DataValue

type Error = DataValueCastFailure

The type returned in the event of a conversion error.

fn try_into(self) -> Result<u8, Self::Error>

Performs the conversion.

impl StructuralPartialEq for DataValue