The AETHER Programming Language

irm https://raw.githubusercontent.com/devsamikhan/aether/main/install.ps1 | iex

curl -fsSL https://raw.githubusercontent.com/devsamikhan/aether/main/install.sh | bash

git clone https://github.com/devsamikhan/aether.git
cd aether
cargo build --release
# The compiled executable is at target/release/aether

aether doctor

================================================================================
🩺 AETHER TOOLCHAIN DOCTOR (SYSTEM HEALTH DIAGNOSTICS)
================================================================================
Version: v2.0.0 (stable-x86_64-pc-windows-msvc)
Binary Location: C:\Users\...\.aether\bin\aether.exe
Diagnostics Checklist:
  [✅ OK] AETHER_HOME Directory Registered
  [✅ OK] Global User PATH Integration Active
  [✅ OK] Pure Rust Bytecode VM & SIMD Vector Engine
  [✅ OK] In-Memory Quantum State Vector Engine (64-qubit max)
  [✅ OK] Fiber M:N Work-Stealing Scheduler Ready
Status: SYSTEM 100% HEALTHY & READY FOR PRODUCTION 🚀
================================================================================

# Script style
let message = "Hello, AETHER 2.0 World!";
println(message);

# Declarative Intent style
intent Greeter {
    schema {
        target: String = "Production Universe";
    }

    fn run() {
        println("Greetings to: " + this.target);
    }
}

let g = Greeter();
g.run();

aether run hello.ae
# Output:
# Hello, AETHER 2.0 World!
# Greetings to: Production Universe

# Variables are declared using 'let'
let count = 100;             # Int
let speed = 99.85;           # Float
let is_active = true;         # Bool
let name = "AETHER Supercomputer"; # String
let empty_val = nil;          # Nil

# Mutating variables
count = count + 1;
println("Updated count: " + to_string(count)); # 101

let a = 15;
let b = 4;

println(a + b);   # 19
println(a / b);   # 3 (integer division) or 3.75 for floats
println(a % b);   # 3 (modulo)

let condition = (a > 10) and (b == 4);
println(condition); # true

# Create a list
let numbers = [10, 20, 30, 40, 50];

# Access elements (zero-indexed)
println(numbers[0]);  # 10
println(numbers[2]);  # 30

# Append elements
numbers.push(60);
println(len(numbers)); # 6

# Pop last element
let last = numbers.pop();
println(last); # 60

# Create a dictionary
let config = {
    "host": "127.0.0.1",
    "port": 8080,
    "ssl": true
};

# Access and mutate
println(config["host"]); # 127.0.0.1
config["timeout"] = 30;
println(config["timeout"]); # 30

# List comprehension: Square all even numbers from 0 to 9
let numbers = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9];
let squares = [x * x for x in numbers if x % 2 == 0];

println(squares); # [0, 4, 16, 36, 64]

# Transform strings
let fruits = ["apple", "banana", "cherry"];
let upper_fruits = [f.to_uppercase() for f in fruits];
println(upper_fruits); # ["APPLE", "BANANA", "CHERRY"]

let temperature = 28;

if temperature > 35 {
    println("Heatwave advisory!");
} elif temperature > 20 {
    println("Pleasant weather.");
} else {
    println("Cool weather.");
}

# While loop
let i = 0;
while i < 3 {
    println("Iteration: " + to_string(i));
    i = i + 1;
}

# For..in loop over list
let items = ["Quantum", "Fiber", "SIMD"];
for item in items {
    println("Feature: " + item);
}

let code = 200;

match code {
    200 => println("Status: Success (OK)"),
    404 => println("Status: Resource Not Found"),
    500 => println("Status: Internal Server Error"),
    _   => println("Status: Unknown Status Code")
}

# Basic function with return value
fn calculate_area(width, height) {
    return width * height;
}

let area = calculate_area(12, 8);
println("Area: " + to_string(area)); # 96

# Higher-order function with closure
fn make_multiplier(factor) {
    return fn(x) {
        return x * factor;
    };
}

let double = make_multiplier(2);
println(double(21)); # 42

class BankAccount {
    fn init(owner, initial_deposit) {
        this.owner = owner;
        this.balance = initial_deposit;
    }

    fn deposit(amount) {
        this.balance = this.balance + amount;
        println("Deposited $" + to_string(amount));
    }

    fn get_balance() {
        return this.balance;
    }
}

let account = BankAccount("Alice", 1500);
account.deposit(500);
println("Current balance: $" + to_string(account.get_balance())); # 2000

fn safe_divide(a, b) {
    if b == 0 {
        throw "DivisionByZeroError: divisor cannot be zero";
    }
    return a / b;
}

try {
    let result = safe_divide(100, 0);
    println(result);
} catch (err) {
    println("Caught anticipated exception: " + err);
}

# math_utils.ae
fn factorial(n) {
    if n <= 1 { return 1; }
    return n * factorial(n - 1);
}

# Import and use functions from another module
use "math_utils.ae";

let result = factorial(5);
println("5! = " + to_string(result)); # 120

# Create an unbuffered communication channel
let ch = channel();

# Spawn worker fiber
spawn(fn() {
    println("Worker fiber active, computing task...");
    let sum = 0;
    for i in 0..100000 {
        sum = sum + i;
    }
    ch.send(sum);
});

# Non-blocking receive from fiber
let result = ch.recv();
println("Received computed sum from worker: " + to_string(result));

# Vector computation with native SIMD acceleration
let a = [1.0, 2.0, 3.0, 4.0, 5.0];
let b = [10.0, 20.0, 30.0, 40.0, 50.0];

# Compute dot product in single SIMD pass
let dot = Compute.dot_product(a, b);
println("Dot product: " + to_string(dot)); # 550.0

# Vector FMA (Fused Multiply Add): a * 2.5 + b
let fma_result = Compute.fma(a, 2.5, b);
println(fma_result); # [12.5, 25.0, 37.5, 50.0, 62.5]

intent AtomicTransfer {
    schema {
        sender_balance: Float;
        recipient_balance: Float;
        transfer_amount: Float;
    }

    require {
        this.transfer_amount > 0.0;
        this.sender_balance >= this.transfer_amount;
    }

    ensure {
        this.sender_balance == old(this.sender_balance) - this.transfer_amount;
        this.recipient_balance == old(this.recipient_balance) + this.transfer_amount;
    }

    fn execute() {
        this.sender_balance = this.sender_balance - this.transfer_amount;
        this.recipient_balance = this.recipient_balance + this.transfer_amount;
        println("Atomic transfer verified successfully!");
    }
}

# Allocate 2-qubit register in ground state |00>
let qreg = QuantumRegister(2);

# Put qubit 0 into equal superposition (|0> + |1>) / sqrt(2)
qreg.h(0);

# Entangle qubit 0 with qubit 1 using Controlled-NOT
qreg.cnot(0, 1);

# Register is now in the maximally entangled Bell state: (|00> + |11>) / sqrt(2)
let outcome0 = qreg.measure(0);
let outcome1 = qreg.measure(1);

println("Measurement Q0: " + to_string(outcome0));
println("Measurement Q1: " + to_string(outcome1));
assert(outcome0 == outcome1); # Always collapsed identically

let mv = Multiverse();

# Fork reality into branches A and B
let branch_a = mv.fork();
let branch_b = mv.fork();

branch_a.execute(fn() {
    return 100 * 1.2; # Conservative path
});

branch_b.execute(fn() {
    return 100 * 1.8; # High-yield path
});

# Collapse reality to path maximizing reward
let winner = mv.collapse_highest();
println("Selected timeline yield: " + to_string(winner));

# Create two distributed node counters
let node1 = PNCounter("node_us_east");
let node2 = PNCounter("node_eu_west");

# Concurrent independent mutations
node1.increment(50);
node2.increment(30);
node1.decrement(10);

# Peer-to-peer state merge (idempotent, commutative, associative)
node1.merge(node2);
println("Converged global counter: " + to_string(node1.value())); # 70

let g = AetherGraph();

g.add_node("A", {"label": "Server 1"});
g.add_node("B", {"label": "Router"});
g.add_node("C", {"label": "Database"});

g.add_edge("A", "B", 5);
g.add_edge("B", "C", 3);
g.add_edge("A", "C", 12);

let path = g.shortest_path("A", "C");
println("Shortest latency path: " + to_string(path)); # ["A", "B", "C"] (cost: 8)

use LiveReload;

LiveReload.watch("handlers.ae", fn(new_module) {
    println("Hot-swapped module: handlers.ae version updated smoothly!");
});