Trait Register 

pub trait Register:
    Copy
    + Clone
    + Debug
    + Hash
    + Eq {
    // Required methods
    fn id(&self) -> u32;
    fn abi_class(&self) -> AbiClass;

    // Provided methods
    fn is_caller_saved(&self) -> bool { ... }
    fn is_callee_saved(&self) -> bool { ... }
    fn is_special(&self) -> bool { ... }
}

A register identifier for a target architecture

Required Methods

fn id(&self) -> u32

Get the register number/identifier

fn abi_class(&self) -> AbiClass

Get the ABI classification for this register.

This method should return the appropriate AbiClass based on the target architecture’s calling convention.

Example

// For RISC-V
match self {
    Register::T0 | Register::T1 => AbiClass::CallerSaved,
    Register::S0 | Register::S1 => AbiClass::CalleeSaved,
    Register::SP | Register::FP => AbiClass::Other,
    // ...
}

Provided Methods

fn is_caller_saved(&self) -> bool

Check if this register is caller-saved.

Convenience method equivalent to self.abi_class() == AbiClass::CallerSaved.

fn is_callee_saved(&self) -> bool

Check if this register is callee-saved.

Convenience method equivalent to self.abi_class() == AbiClass::CalleeSaved.

fn is_special(&self) -> bool

Check if this register is special-purpose.

Convenience method equivalent to self.abi_class() == AbiClass::Special.

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementors

impl Register for jit_assembler::aarch64::instruction::Register

impl Register for jit_assembler::riscv64::instruction::Register