Currently this is a living document as there's still alot to define and write down regarding the Luf language. However, here you can find the basic internal information regarding its its defintion.

• Introduction
• Precedence
• Arithmetic
• Bytecode
• Types

Precedence

The order of which expressions are executed is as follow where the highest precedence is executed before a lower precedence.

Name	Tokens
lowest	Expressions not defined here
range	..
or	or
and	and
assign	=, +=, -=, *=, /=
equals	==, !=,
less_greater	<, >, <=, >=
bitwise_or	`
bitwise_xor	^
bitwise_and	&
shift	<<, >>
sum	+, -
product	%, /, *
prefix	!, - (negation), ~
call	some_function()
index	. i.e list.len

Arithmetic

Please note that not all arithmetic has yet been implemented. There's still a few assign-and-op shorthands missing

Name	Syntax	Types
Addition	a + b, a += b	int, string
Substraction	a - b, a -= b	int
Multiplication	a * b, a *= b	int
Division	a / b, a =/ b	int
Remainder division	a % b	int
Negation	-a	int
Bitwise xor	a ^ b	int
Bitwise or	a | b	int
Bitwise and	a & b	int
Bitwise not	~a	int
Shift left	a << b	int
Shift right	a >> b	int
and	a and b	bool
or	a or b	bool
not bool	!a	bool
equal	a == b	bool, int, string
Not equal	a != b	bool, int, string
Greater than	a > b, a >= b	int
Less than	a < b, a <= b	int

Bytecode

All VM instructions are 24 bits. The first bit of the instruction contains the opcode, where the remaining 16 bits can be used to point to another instruction or define a parameter. For example, it can contain the value 2 to the opcode make_array to specify its length.

All instructions with its definitions will be documented here soon™.

Types

Currently the following types are implemented.

syntax	Notes
int	64 bit signed integer
string	utf-8 encoded list of characters
bool	native zig boolean (u1)
[5]type	list of type of length 5
[5]type1:type2	map with type1 as key and type2 as value of length 5

In the future users can specify their own Types using composable Structs.