aethershell 0.3.1

The world's first multi-agent shell with typed functional pipelines and multi-modal AI
Documentation 
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# AetherShell - Mutable Variables Showcase
# Demonstrating all three mutable syntax options

print("=== AetherShell Mutable Variables ===\n")

# ============================================
# IMMUTABLE vs MUTABLE
# ============================================

print("Immutable variables (cannot change):")
x = 42
name = "Alice"
print("  x = ${x}, name = ${name}")

print("\nMutable variables (can change):")
mut counter = 0
mut total = 100
let mut score = 50

print("  Initial: counter=${counter}, total=${total}, score=${score}")

counter = counter + 10
total = total - 20
score = score * 2

print("  Modified: counter=${counter}, total=${total}, score=${score}")

# ============================================
# PRACTICAL EXAMPLES
# ============================================

print("\n=== Counter Pattern ===")
mut clicks = 0
print("Clicks: ${clicks}")
clicks = clicks + 1
print("After click: ${clicks}")
clicks = clicks + 1
print("After another click: ${clicks}")

print("\n=== Accumulator Pattern ===")
mut sum = 0
numbers = [10, 20, 30, 40, 50]
print("Numbers: ${numbers}")

# Manually accumulate (pipeline reduce not available yet)
sum = sum + 10
sum = sum + 20
sum = sum + 30
sum = sum + 40
sum = sum + 50
print("Sum: ${sum}")

print("\n=== State Machine ===")
mut state = "idle"
mut attempts = 0
print("Initial state: ${state}, attempts: ${attempts}")

state = "connecting"
attempts = attempts + 1
print("State: ${state}, attempts: ${attempts}")

state = "connected"
print("State: ${state}, attempts: ${attempts}")

state = "ready"
print("Final state: ${state}")

print("\n=== Progress Tracking ===")
mut progress = 0.0
mut status = "Starting"

print("${status}: ${progress}%")

progress = progress + 25.0
status = "Loading"
print("${status}: ${progress}%")

progress = progress + 25.0
status = "Processing"
print("${status}: ${progress}%")

progress = progress + 25.0
status = "Finalizing"
print("${status}: ${progress}%")

progress = progress + 25.0
status = "Complete"
print("${status}: ${progress}%")

print("\n=== String Mutations ===")
mut message = "Hello"
print("Message: ${message}")

message = "Hello, World"
print("Updated: ${message}")

message = "Hello, AetherShell!"
print("Final: ${message}")

print("\n=== Boolean Flags ===")
mut is_active = false
mut is_loading = false
mut is_complete = false

print("Active=${is_active}, Loading=${is_loading}, Complete=${is_complete}")

is_loading = true
print("Active=${is_active}, Loading=${is_loading}, Complete=${is_complete}")

is_active = true
is_loading = false
print("Active=${is_active}, Loading=${is_loading}, Complete=${is_complete}")

is_complete = true
print("Active=${is_active}, Loading=${is_loading}, Complete=${is_complete}")

print("\n=== Price Calculator ===")
mut base_price = 100.0
mut discount = 0.0
mut tax = 0.0

print("Base price: $${base_price}")

discount = base_price * 0.1
base_price = base_price - discount
print("After 10% discount: $${base_price}")

tax = base_price * 0.08
mut final_price = base_price + tax
print("After 8% tax: $${final_price}")

print("\n✅ Mutable variables make state management easy!")
print("   Use 'mut x = value' for clean, concise syntax.")