Function addExternFunctionDecl

addExternFunctionDecl(
fileJp: FileJp,
functionJp: FunctionJp,
): Joinpoint | undefined
Inserts an extern declaration of the given function into the file.
Parameters
- fileJp: FileJp
  The file to modify.
- functionJp: FunctionJp
  The function to declare as extern.
Returns Joinpoint | undefined
The inserted join point, or undefined if the function has no external linkage.
- Defined in utils/FileUtils.ts:130