إنشاء تطبيق متعدد اللغات

// elide.pkl
amends "elide:project.pkl"

name = "poly"

dependencies {
  npm { packages { "pretty-ms@9.3.1" } }
  pypi { packages { "humanize==4.12.3" } }
}

elide install --ecosystems=npm

python3.13 -m venv .venv
.venv/bin/pip install humanize==4.12.3
export VIRTUAL_ENV=$PWD/.venv

# report.py
import humanize

def size(n):
    return humanize.naturalsize(n)

def summarize(files):
    total = sum(f.bytes for f in files)
    return {"count": len(files), "total": humanize.naturalsize(total)}

// app.mjs
import prettyMs from "pretty-ms";
import report from "./report.py";

const files = [
  { name: "build.log", bytes: 1_500_000, ageMs: 172_800_000 },
  { name: "test.log", bytes: 32_000, ageMs: 5_400_000 },
];

for (const f of files) {
  console.log(`${f.name}: ${report.size(f.bytes)}, ${prettyMs(f.ageMs)} old`);
}

const summary = report.summarize(files);
console.log(`${summary.count} files, ${summary.total}`);

elide --interop run app.mjs

build.log: 1.5 MB, 2d old
test.log: 32.0 kB, 1h 30m old
2 files, 1.5 MB

# shapes.py
def label(order):
    return f"{order.item} x{order.qty}"

def doubled(prices):
    return [p * 2 for p in prices]

def config():
    return {"region": "eu", "retries": 3}

def apply(fn, value):
    return fn(value)

def fail():
    raise ValueError("bad input")

// values.mjs
import shapes from "./shapes.py";

console.log(shapes.label({ item: "bolt", qty: 4 }));
console.log(shapes.doubled([1, 2.5, 3]).map((n) => n + 1));
const config = shapes.config();
console.log(config.region, config.get("retries"));
console.log(JSON.stringify(Object.fromEntries(config.items())));
console.log(shapes.apply((s) => s.toUpperCase(), "shout"));
console.log(shapes.apply((v) => v, null), shapes.apply((v) => v, undefined));

elide --interop run values.mjs

bolt x4
(3)[3, 6, 7]
eu 3
{"region":"eu","retries":3}
SHOUT
null undefined

# calls.py
from elide import js

slug = js("(s) => s.trim().toLowerCase().replaceAll(' ', '-')")
print(slug("  Hello Polyglot World "))

point = js("({ x: 1, y: 2, tags: ['a', 'b'] })")
print(point.x + point.y, point.tags[0], len(point.tags))
print(sorted(js("[3, 1, 2]")))

try:
    js("JSON.parse('{oops')")
except RuntimeError as e:
    print("caught:", e)

js("Promise.resolve(42)").then(lambda v: print("resolved:", v))

elide --interop python calls.py

hello-polyglot-world
3 a 2
[1, 2, 3]
caught: JSException: SyntaxError: Unexpected token o in JSON at position 1
resolved: 42

// errors.mjs
import shapes from "./shapes.py";

try {
  shapes.fail();
} catch (e) {
  console.log(e.name, "|", e.message);
}

shapes.apply((x) => {
  throw new RangeError(`bad value ${x}`);
}, 7);

elide --interop run errors.mjs

ValueError | ValueError: bad input
RangeError: bad value 7
    at :=> (errors.mjs:10:9)
    at apply (shapes.py:11:12)
    at :module:eval (errors.mjs:9:1)

# rates.py
import asyncio

async def fetch_rate(code):
    await asyncio.sleep(0.01)
    return {"EUR": 0.92, "GBP": 0.79}[code]

def rate(code):
    return asyncio.run(fetch_rate(code))

def when_ready(promise, done):
    promise.then(lambda value: done(f"python saw {value}"))

// rates.mjs
import rates from "./rates.py";

console.log("rate:", rates.rate("EUR"));

const total = new Promise((resolve) => setTimeout(() => resolve(7), 10));
rates.when_ready(total, (msg) => console.log(msg));
await total;

elide --interop run rates.mjs

rate: 0.92
python saw 7

import hello from "./Hello.kt";

TypeError: Unsupported file extension: 'file:/path/to/Hello.kt'