Enum bytecode::access_path::Offset

pub enum Offset {
    Field(usize),
    VectorIndex,
    Global(AbsStructType),
}

Offset of an access path: either a field, vector index, or global key

Variants

Field(usize)

Index into contents of a struct by field offset

VectorIndex

Unknown index into a vector

Global(AbsStructType)

A type index into global storage. Only follows a field or vector index of type address

Implementations

impl Offset

pub fn global(mid: &ModuleId, sid: StructId, types: Vec<Type>) -> Self

pub fn field(f: usize) -> Self

pub fn get_type(&self, base: &Type, env: &GlobalEnv) -> Type

Get the type of offset base/self in function fun

pub fn substitute_footprint(&mut self, type_actuals: &[Type])

Bind free type variables in self to type_actuals

pub fn is_statically_known(&self) -> bool

Return true if this offset is the same in all concrete program executions

pub fn display<'a>( &'a self, base_type: &'a Type, env: &'a GlobalEnv ) -> OffsetDisplay<'a>

Return a wrapper of self that implements Display using env

impl Offset

pub fn normalize(&self, env: &GlobalEnv) -> RWOffset

Trait Implementations

impl Clone for Offset

fn clone(&self) -> Offset

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Offset

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

Formats the value using the given formatter.

impl Ord for Offset

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

This method returns an Ordering between self and other.

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

Compares and returns the maximum of two values.

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

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Selfwhere Self: Sized + PartialOrd<Self>,

Restrict a value to a certain interval.

impl PartialEq<Offset> for Offset

fn eq(&self, other: &Offset) -> 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<Offset> for Offset

fn partial_cmp(&self, other: &Offset) -> 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 Eq for Offset

impl StructuralEq for Offset

impl StructuralPartialEq for Offset