Descriptor objects

• cdecl and stdcall are descriptor objects, not functions.
• Each descriptor exposes one public field, CALL.
• CALL is the calling-convention text used in function import and export descriptors.
• The descriptor object itself is the intended public interface.

cdecl

Descriptor object for the C declaration calling convention.

• CALL is the calling-convention text associated with C declaration calling.

stdcall

Descriptor object for the standard-call calling convention.

• CALL is the calling-convention text associated with standard-call calling.

CALL text selection

• When storageSize is 8nx, both cdecl.CALL and stdcall.CALL are the empty string.
• Otherwise cdecl.CALL is "ccc" and stdcall.CALL is "x86_stdcallcc".
• The exported descriptor objects are the public calling-convention interface. The CALL text is descriptor data whose exact value depends on storage size.

Descriptor use

• The descriptor object is supplied in the convention field of function import and export descriptors.
• The same descriptor object may be reused across multiple imports and exports.
• The module defines calling-convention descriptors only for functions. No variable-import interface uses these descriptor objects.

Examples

One descriptor in a callable declaration

"conventions" use
"String" use
"control" use

addOne: {value: Int32;} Int32 {convention: cdecl;} codeRef;
[1 +] !addOne

{} Int32 {} [
  ("result=" 41 addOne LF) printList
  0
] "main" exportFunction

Expected Output

result=42

See also

• importFunction (inputsSchema output options name --): Declares or imports a named function with the supplied signature and binds it in the current scope.
• exportFunction (inputsSchema output options callable name --): Exports a named function built from one Block and one signature.