Types

DLiteScript is a statically typed language, meaning every variable must have a declared type.

Basic Types

Number

The number type represents numeric values, including both integers and floating-point numbers.

Examples:

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var count number = 42
var pi number = 3.14159
var temperature number = -17.5

String

The string type represents text data. Strings are enclosed in double quotes.

Examples:

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var name string = "Alice"
var message string = "Hello, world!"
var empty string = ""

Bool

The bool type represents boolean values: true or false.

Examples:

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var isActive bool = true
var hasError bool = false
var isLessThanTwo bool = (1 < 2)

Null

The null value represents the absence of a value. It’s used in comparisons and as a return value, but cannot be directly assigned to typed variables.

When variables are declared without initialization, they receive zero values instead:

• number defaults to 0
• string defaults to ""
• bool defaults to false
• Arrays default to []

Examples:

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var count number // count is 0, not null

var result = (null == null) // true

func maybeReturn() number {
  return null
}

Special Types

Any

The any type accepts values of any type. This provides flexibility when the specific type isn’t known at compile time.

Examples:

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var unknown any = 42
unknown = "now a string"
unknown = true

Error

The error type is used for error handling and represents error values.

Examples:

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var err error // err has a zero value of null

Composite Types

Arrays

Arrays are declared using square brackets [] followed by the element type. All elements in an array must be of the same type.

Syntax:

• []number - Array of numbers
• []string - Array of strings
• []bool - Array of booleans

Examples:

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var numbers []number = [1, 2, 3, 4, 5]
var names []string = ["Alice", "Bob", "Charlie"]
var flags []bool = [true, false, true]
var empty []number = []

Type Conversion

DLiteScript does not perform implicit type conversion. Types must match exactly in assignments and operations.

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var x number = 42
var y string = "42"

printf("%t\n", x == y) // false