mizchi

// Minimal Baseline JIT for WebAssembly (ARM64)
// Zig implementation

const std = @import("std");
const fs = std.fs;
const mem = std.mem;
const Allocator = std.mem.Allocator;

// ============================================================================
// Code buffer for JIT compilation

mizchi

original

https://github.com/helix-editor/helix/blob/master/runtime/tutor

---

Helix Tutor 日本語訳（Markdown版）

原文のキー表記・コマンドはそのまま残し、説明文のみ日本語に訳しています。

mizchi

Bundle Size Analysis

This document analyzes the bundle size of MoonBit JavaScript output, identifying the main contributors to code size and potential optimization opportunities.

Note: The analyzed output is after terser DCE (Dead Code Elimination) with compress enabled. Unused code has already been removed.

Analysis Target

https://github.com/mizchi/js.mbt/blob/main/src/examples/aisdk/main.mbt

mizchi

Moonbit FFI Core

///|
#external
pub type JsValue

///|
pub fn[T] JsValue::cast(self : JsValue) -> T = "%identity"

mizchi

Proposal	Author	Status	Review and discussion
ME-0011	mizchi	Under review	Github issue

新しい json enum 構文を提案します。

モチベーション

mizchi

/// original https://github.com/moonbit-community/jmop/blob/main/promise.mbt

///|
extern "js" fn ffi_promise_resolve(x : Value) -> Value = "(x) => Promise.resolve(x)"

///|
extern "js" fn ffi_promise_reject(e : Error) -> Value = "(x) => Promise.reject(x)"

///|
extern "js" fn ffi_promise_then(

mizchi

```mbt
async fn[T, U] map_async(arr: Array[T], f: async (T) -> U raise?) -> Array[U] raise? {
  let res: Array[U] = []
  for item in arr {
    res.push(f(item))
  }
  res
}

async test {

mizchi

///|
extern "js" fn ffi_request_animation_frame(f : () -> Unit) -> Unit =
  #|(f) => {
  #|  if (globalThis.requestAnimationFrame) {
  #|    requestAnimationFrame(f)
  #|  } else {
  #|    setTimeout(f, 0) // fallback
  #|  }
  #|}

mizchi

///|
fnalias @svg.node as svg_node

///|
fn[M] common_svg_node(
  tag_name : String,
  new_attrs : Array[@svg.Attribute[M]],
  style~ : Array[String]?,
  class~ : String?,
  id~ : String?,

mizchi

const OPENAI_API_KEY_PATH = "%_%=k";
const TEMP_PKCE_VERIFIER = "%_%=pk";

function base64UrlEncode(array: Uint8Array): string {
  const base64 = btoa(String.fromCharCode(...array));
  return base64.replace(/\+/g, "-").replace(/\//g, "_").replace(/=/g, "");
}

type LoginState =
  | {