Operators and Symbols

This appendix provides a glossary of Glu’s syntax, encompassing operators and symbols used independently or within paths, generics, macros, attributes, comments, and brackets.

Operators

This table lists operators in Glu, along with examples of their contextual usage, brief explanations, and indicates whether each operator is overloadable. Operators are listed alongside their precedences.

Operator	Example	Explanation	Overloadable
.	expr . ident	Access to a member of a struct	false
!	!expr	Bitwise or logical complement	true
? :	pat ? pat : pat	Ternary pattern	false
%	expr % expr	Arithmetic remainder	true
%	var %= expr	Arithmetic remainder and assignment	true
!=	expr != expr	Nonequality comparison	true
.*	expr.*	Dereference	true
:	ident : type	Specify type	false
&	&expr	Take the address of a value	false
&	expr & expr	Bitwise And	true
&=	var &= expr	Bitwise And and assignment	true
&&	expr && expr	Short-circuiting logical AND	true
*	*type	Raw pointer type	false
*	*(...) -> type	Function pointer type	false
*	expr * expr	Arithmetic multiplication	true
*=	var *= expr	Arithmetic multiplication and assignment	true
+	expr + expr	Arithmetic addition	true
+=	var += expr	Arithmetic addition and assignment	true
/	expr / expr	Arithmetic division	true
/=	var /= expr	Arithmetic division and assignment	true
-	- expr	Arithmetic negation	true
-	expr - expr	Arithmetic substraction	true
-=	var -= expr	Arithmetic substraction and assignment	true
==	expr == expr	Equality comparison	true
||	expr || expr	Short-circuiting logical OR	true
>	expr > expr	Greater then comparison	true
>=	expr >= expr	Greater then or equal comparison	true
<	expr < expr	Lesser then comparison	true
<=	expr <= expr	Lesser then or equal comparison	true
->	func ident(...) -> type	Function return type	false
...	expr...	Infinite Left-inclusive range literal	false
...	expr...expr	From expr to expr inclusive range literal	false
..<	expr..<expr	From expr to expr Right-exclusive range literal	false
<<	expr << expr	Left-shift	true
<<=	var <<= expr	Left-shift and assignment	true
>>	expr >> expr	Right-shift	true
>>=	var >>= expr	Right-shift and assignment	true
^	expr ^ expr	Bitwise exclusive OR	true
^=	var ^= expr	Bitwise exclusive OR and assignment	true
|	expr | expr	Bitwise OR	true
|=	var |= expr	Bitwise OR and assignment	true
;	expr;	statement terminator	false
,	expr, expr	Argument and elements separator	false
[]	expr[expr]	Increment and dereference pointer	true

Symbols

The following list includes all symbols that do not act as operators, meaning they do not function like a call to a function.

Symbol	Explanation
"..."	String literal
'...'	ASCII byte literal
ident::ident	Namespace path
ident::ident	Lib path
func ident<ident>()	Specify a generic type for a function
path::*	Wild card to import every modules from a path
{...}	Bloc expression
Type {...}	Struct literal
Type[] = {...}	Array literal