Struct Accept 

pub struct Accept { /* private fields */ }

Which operand shapes a use accepts: a register, memory (an address or a stack slot), an immediate in a range, a function symbol.

Examples

use backend_lang::target::{Accept, ImmRange};

let rmi = Accept::RM.with_imm(ImmRange::I32);
assert!(rmi.reg() && rmi.mem());
assert_eq!(rmi.imm(), ImmRange::I32);
assert!(!Accept::REG.mem());

Implementations

impl Accept

pub const REG: Accept

A register only.

pub const MEM: Accept

Memory only.

pub const RM: Accept

A register or memory.

pub const NONE: Accept

Nothing; extend with the with_* methods.

pub const fn with_imm(self, range: ImmRange) -> Accept

Also accepts immediates in range.

Examples

use backend_lang::target::{Accept, ImmRange};

assert_eq!(Accept::REG.with_imm(ImmRange::U8).imm(), ImmRange::U8);

pub const fn with_symbol(self) -> Accept

Also accepts a function symbol (a direct call target, or the address of a function as a RIP-relative memory operand).

Examples

use backend_lang::target::Accept;

assert!(Accept::MEM.with_symbol().symbol());

pub const fn reg(self) -> bool

Whether a register is accepted.

Examples

use backend_lang::target::Accept;

assert!(Accept::RM.reg());

pub const fn mem(self) -> bool

Whether memory (an address or a stack slot) is accepted.

Examples

use backend_lang::target::Accept;

assert!(Accept::MEM.mem());

pub const fn symbol(self) -> bool

Whether a function symbol is accepted.

Examples

use backend_lang::target::Accept;

assert!(!Accept::RM.symbol());

pub const fn imm(self) -> ImmRange

The immediates accepted.

Examples

use backend_lang::target::{Accept, ImmRange};

assert_eq!(Accept::RM.imm(), ImmRange::None);

Trait Implementations

impl Clone for Accept

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Accept

impl Debug for Accept

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

Formats the value using the given formatter.

impl Eq for Accept

impl Hash for Accept

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 PartialEq for Accept

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for Accept