1 : Variables

1. Variables

LAT supports two main variable types:

• Global variables

• Local variables (nat)

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1.1 Global Variables

A global variable is created simply by assigning to a name:

x = 10
x = x + 5

Properties

• Exists for the entire program duration

• Can be accessed by any function

• Can be overwritten without restrictions

• Does not require a type annotation

Behavior Example

x = 2
call add()
x = x + 10
done
add()
print(x)  -- prints 12

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1.2 Local Variables (nat)

Local variables must use the nat keyword:

nat score = 0
nat health = 100

Properties

• Exists only within the current block

• Cannot be accessed outside the function

• Must be initialized at declaration

• Shadowing globals with the same name is allowed

Example: Shadowing

x = 50
call test()
nat x = 5
print(x)  -- prints 5 (local)
done
test()
print(x)      -- prints 50 (global)

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