4. Application Binary Interface

4.1. Name Mangling

4.1.1. Functions

Function mangled name is composed of the following sequence:

1. A literal _P

2. Function name encoding:

   1. Number of characters in the function’s base name
   2. The function’s base name, verbatim

3. Function’s return type

   1. A literal R
   2. mangled name of return type
   3. A literal E

4. Function’s parameters

   1. A literal P
   2. All positional parameters’ mangled type name in sequence.
   3. A literal E

4.1.2. Types

4.1.2.1. Modifiers

• Mutable types have a prefix m
• Reference types begin with r

4.1.2.2. Scalar (built-in) types

Built-in types mangle according to the following table:

Type	Mangled name
Void	v
Bool	b
Signed integer	s followed by number of bytes (S8 is s1)
Unsigned integer	u followed by number of bytes
Character	c followed by number of bytes

4.1.2.3. Pointers

Pointer type is mangled as p followed by the pointed to type mangling

4.1.2.4. Arrays

1. A literal A
2. Number signifying the array’s dimensions
3. Mangled name of element type