Struct CodeWriter 

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

Thin instruction-word writer for JIT emission.

This type intentionally owns no label/fixup metadata.

Implementations

impl<'a> CodeWriter<'a>

pub fn new(buf: &'a mut [u32]) -> Self

Creates a new writer over a caller-provided word buffer.

pub fn pos(&self) -> usize

Returns the current write cursor in words.

pub fn remaining(&self) -> usize

Returns remaining writable words.

pub fn set_position(&mut self, position: usize) -> Result<(), AssembleError>

Moves the write cursor to an earlier or equal emitted position.

Errors

Returns AssembleError::PositionOutOfBounds if position is outside emitted range.

pub fn emit_word(&mut self, word: u32) -> Result<(), AssembleError>

Emits one already-encoded instruction word.

Errors

Returns AssembleError::BufferOverflow if the buffer is full.

pub fn read_u32_at(&self, at: usize) -> Result<u32, AssembleError>

Reads one emitted instruction word at at.

Errors

Returns AssembleError::ReadOutOfBounds if at is outside emitted range.

pub fn write_u32_at( &mut self, at: usize, word: u32, ) -> Result<(), AssembleError>

Overwrites one emitted instruction word at at.

Errors

Returns AssembleError::WriteOutOfBounds if at is outside emitted range.