Struct InstBuilder 

pub struct InstBuilder<'a> { /* private fields */ }

One instruction being built.

The order the operands are given in is the order they are stored in, and the builder is what insists that order is the one the printer and the parser agree on.

Implementations

impl InstBuilder<'_>

pub fn operand(self, operand: Operand) -> Self

Adds an operand.

Panics

Panics if an operand the instruction writes is given after one it reads, or if either is given after the memory operand, because both make the instruction print as text that reads back as a different one.

pub fn def(self, reg: Reg, class: RegClass) -> Self

Adds the operand the instruction writes, in the common case where nothing constrains it.

pub fn uses(self, reg: Reg, class: RegClass) -> Self

Adds an operand the instruction reads, in the common case where nothing constrains it.

pub fn mem(self, mem: Mem) -> Self

Gives the instruction a memory operand, whose registers become its last operands.

Panics

Panics if it already has one.

pub fn imm(self, value: i64) -> Self

Gives the instruction an immediate.

pub fn symbol(self, symbol: Symbol) -> Self

Gives the instruction the symbol it names.

pub fn at(self, span: Span) -> Self

Says where in the source the instruction came from.

pub fn finish(self) -> Inst

Puts the instruction at the end of the block it was started in, or in no block at all if it was started loose.

Trait Implementations

impl<'a> Debug for InstBuilder<'a>

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

Formats the value using the given formatter.