mapExternalFunction0<T, R> method
Maps an external function with 0 parameters.
Implementation
void mapExternalFunction0<T, R>(
ASTType<R> fReturn, String fName, Function() f) {
var fParameters = ASTParametersDeclaration(null, null, null);
var fExternal = ASTExternalFunction(fName, fParameters, fReturn, f);
addExternalFunction(fExternal);
}