sashakoshka/arf
Archived
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Update 'Variable Definition and Type Notation'

Sasha Koshka 2022-08-24 05:45:14 +00:00
parent f1e469df53
commit 2e8c99764f
1 changed files with 13 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

13
Variable-Definition-and-Type-Notation.md Normal file

@ -0,0 +1,13 @@
In ARF, variables are defined using the syntax `name:Type:qualifier`, where name
is a name token and type is either just a name token describing what type it is,
or a pointer to a value of that type or an array to a value of that type. The
only supported qualifier is `:mut`, which marks the variable's data as mutable.
Variables are immutable by default.
Pointers are defined like `name:{Type}` and arrays are defined like
`name:{Type length}` where length is an unsigned integer literal or an ellipsis
token (..). If an integer token is given, the length of the array is static, and
if an ellipsis is given, the length is dynamic and can be changed at runtime.
Variables can be defined wherever they are used. For example, `set x:Int 5`
defines a variable of type Int and sets it to 5.