class Puppet::Pops::Evaluator::CallableSignature

Returns the range of required/optional argument values as an array of [min, max], where an infinite end is given as INFINITY. To test against infinity, use the infinity? method.

@return [Array[Integer, Numeric]] - an Array with [min, max]

@api public

# File lib/puppet/pops/evaluator/callable_signature.rb, line 77
def args_range
  type.size_range
end

Returns the name of the block parameter if the callable accepts a block. @return [String] the name of the block parameter A derived class must implement this method. @api public

# File lib/puppet/pops/evaluator/callable_signature.rb, line 57
def block_name
  raise NotImplementedError.new
end

Returns a range indicating the optionality of a block. One of [0,0] (does not accept block), [0,1] (optional block), and [1,1] (block required)

@return [Array(Integer, Integer)] the range of the block parameter

# File lib/puppet/pops/evaluator/callable_signature.rb, line 66
def block_range
  type.block_range
end

Returns the expected type for an optional block. The type may be nil, which means that the callable does not accept a block. If a type is returned it is one of Callable, Optional, Variant, or Optional[Variant[Callable, …]]. The Variant type is used when multiple signatures are acceptable. The Optional type is used when the block is optional.

@return [Puppet::Pops::Types::PAnyType, nil] the expected type of a block given as the last parameter in a call.

@api public

# File lib/puppet/pops/evaluator/callable_signature.rb, line 48
def block_type
  type.block_type
end

Returns true if the given x is infinity @return [Boolean] true, if given value represents infinity

@api public

# File lib/puppet/pops/evaluator/callable_signature.rb, line 97
def infinity?(x)
  x == Puppet::Pops::Types::INFINITY
end

Returns true if the last parameter captures the rest of the arguments, with a possible cap, as indicated by the `#args_range` method. A derived class must implement this method.

@return [Boolean] true if last parameter captures the rest of the given arguments (up to a possible cap) @api public

# File lib/puppet/pops/evaluator/callable_signature.rb, line 88
def last_captures_rest?
  raise NotImplementedError.new
end

Returns the names of the parameters as an array of strings. This does not include the name of an optional block parameter.

All implementations are not required to supply names for parameters. They may be used if present, to provide user feedback in errors etc. but they are not authoritative about the number of required arguments, optional arguments, etc.

A derived class must implement this method.

@return [Array<String>] - an array of names (that may be empty if names are unavailable)

@api public

# File lib/puppet/pops/evaluator/callable_signature.rb, line 23
def parameter_names
  raise NotImplementedError.new
end

Returns a PCallableType with the type information, required and optional count, and type information about an optional block.

A derived class must implement this method.

@return [Puppet::Pops::Types::PCallableType] @api public

# File lib/puppet/pops/evaluator/callable_signature.rb, line 35
def type
  raise NotImplementedError.new
end