Struct CodeBuilder 

pub struct CodeBuilder { /* private fields */ }

Implementations

impl CodeBuilder

pub fn new() -> CodeBuilder

pub fn with_capacity(instructions: usize) -> CodeBuilder

A builder with room for instructions before it grows.

pub fn pc(&self) -> u32

The index the next instruction gets.

pub fn raw(&mut self, insn: Insn) -> u32

Any instruction, without the format check.

pub fn op(&mut self, op: Opcode) -> u32

pub fn a(&mut self, op: Opcode, a: u8) -> u32

pub fn ab(&mut self, op: Opcode, a: u8, b: u8) -> u32

pub fn abc(&mut self, op: Opcode, a: u8, b: u8, c: u8) -> u32

pub fn a_int(&mut self, op: Opcode, a: u8, value: i32) -> u32

pub fn ab_int(&mut self, op: Opcode, a: u8, b: u8, value: i32) -> u32

pub fn a_const(&mut self, op: Opcode, a: u8, index: u32) -> u32

pub fn key(&mut self, op: Opcode, key: PropertyKey) -> u32

pub fn a_key(&mut self, op: Opcode, a: u8, key: PropertyKey) -> u32

pub fn ab_key(&mut self, op: Opcode, a: u8, b: u8, key: PropertyKey) -> u32

pub fn a_capture(&mut self, op: Opcode, a: u8, capture: u32) -> u32

pub fn a_count(&mut self, op: Opcode, a: u8, count: u32) -> u32

pub fn ab_range(&mut self, op: Opcode, a: u8, first: u8, count: u32) -> u32

pub fn a_child(&mut self, op: Opcode, a: u8, child: u32) -> u32

pub fn call(&mut self, op: Opcode, dst: u8, callee: u8, argc: u8) -> u32

pub fn jump(&mut self, op: Opcode, target: u32) -> u32

pub fn a_jump(&mut self, op: Opcode, a: u8, target: u32) -> u32

pub fn ab_jump(&mut self, op: Opcode, a: u8, b: u8, target: u32) -> u32

pub fn a_short_jump( &mut self, op: Opcode, a: u8, value: i16, target: u32, ) -> u32

pub fn a_wide(&mut self, op: Opcode, a: u8, register: u32) -> u32

pub fn retarget(&mut self, pc: u32, a: u8)

Changes the destination register of the instruction at pc (the lowering’s retargeting of a temporary into a local).

pub fn patch_target(&mut self, pc: u32, target: u32)

Sets the target of the jump at pc, emitted before its target was known.

pub fn handler(&mut self, handler: Handler)

Adds a handler; nested handlers are added before the ones enclosing them.

pub fn code(&self) -> &[Insn]

pub fn mark_back_edges(&mut self)

Turns every Jmp whose target is at or before it into JmpBack, once the targets are final: the loop polls for interrupts on back-edges only.

pub fn finish(self, layout: UnitLayout) -> CodeUnit

The unit, with the layout and counts the lowering decided, and its cache sites numbered: the named-property sites first, in instruction order, then the global and new sites.

Trait Implementations

impl Default for CodeBuilder

fn default() -> Self

Returns the “default value” for a type.