Logtalk reference manual
Built-in non-terminal: call//1-N
Contents > Reference Manual > Built-in Methods > call//1-N

## call//1-N

#### Description

    call(Closure)
    call(Closure, Arg1, ...)
    call(Object::Closure, Arg1, ...)
    call(::Closure, Arg1, ...)

This non-terminal takes a closure and is processed by appending the input list of tokens and the list of remaining tokens to the arguments of the closure. This built-in non-terminal is interpreted as a private non-terminal and thus cannot be used as a message to an object. When using a back-end Prolog compiler supporting a module system, calls in the format `call(Module:Closure)` may also be used. By using as argument a lambda expression, this built-in non-terminal provides controlled access to the input list of tokens and to the list of the remaining tokens processed by the grammar rule containing the call.

#### Template and modes

    call(+callable)
    call(+callable, ?term)
    call(+callable, ?term, ?term)
    ...

#### Errors

Closure is a variable:
  `instantiation_error`
Closure is neither a variable nor a callable term:
  `type_error(callable, Closure)`

#### Examples

Calls a goal, constructed by appending the input list of tokens and the list of remaining tokens to the arguments of the closure, in the context of the object or category containing the call:
  `call(Closure)`
To send a goal, constructed by appending the input list of tokens and the list of remaining tokens to the arguments of the closure, as a message to self:
  `call(::Closure)`
To send a goal, constructed by appending the input list of tokens and the list of remaining tokens to the arguments of the closure, as a message to an explicit object:
  `call(Object::Closure)`