Class: Puppet::Pops::Types::PArrayType

Inherits:
PCollectionType show all
Defined in:
lib/puppet/pops/types/types.rb

Constant Summary collapse

DEFAULT = 
PArrayType.new(nil)
EMPTY = 
PArrayType.new(PUnitType::DEFAULT, ZERO_SIZE)

Constants inherited from PCollectionType

Puppet::Pops::Types::PCollectionType::DEFAULT_SIZE, Puppet::Pops::Types::PCollectionType::NOT_EMPTY_SIZE, Puppet::Pops::Types::PCollectionType::ZERO_SIZE

Instance Attribute Summary collapse

Attributes inherited from PCollectionType

#size_type

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from PCollectionType

#has_empty_range?, #iterable?, #size_range

Methods inherited from PAnyType

#==, #assignable?, #callable?, #callable_with?, #check_self_recursion, create, #create, #iterable?, #kind_of_callable?, #loader, #name, #new_function, #really_instance?, #roundtrip_with_string?, #simple_name, simple_name, #to_alias_expanded_s, #to_s

Methods inherited from TypedModelObject

_pcore_type, create_ptype, register_ptypes

Methods included from PuppetObject

#_pcore_all_contents, #_pcore_contents, #_pcore_init_hash, #_pcore_type, #to_s

Constructor Details

#initialize(element_type, size_type = nil) ⇒ PArrayType

Returns a new instance of PArrayType


2521
2522
2523
2524
2525
2526
2527
2528
 
# File 'lib/puppet/pops/types/types.rb', line 2521

def initialize(element_type, size_type = nil)
  super(size_type)
  if !size_type.nil? && size_type.from == 0 && size_type.to == 0
    @element_type = PUnitType::DEFAULT
  else
    @element_type = element_type.nil? ? PAnyType::DEFAULT : element_type
  end
end

Instance Attribute Details

#element_type ⇒ Object (readonly) 


2519
2520
2521
 
# File 'lib/puppet/pops/types/types.rb', line 2519

def element_type
  @element_type
end

Class Method Details

.new_function(type) ⇒ Object

Returns a new function that produces an Array


2588
2589
2590
2591
2592
2593
2594
2595
2596
2597
2598
2599
2600
2601
2602
2603
2604
2605
2606
2607
2608
2609
2610
2611
2612
2613
2614
2615
2616
2617
2618
2619
2620
2621
2622
2623
2624
2625
2626
2627
2628
2629
 
# File 'lib/puppet/pops/types/types.rb', line 2588

def self.new_function(type)
  @new_function ||= Puppet::Functions.create_loaded_function(:new_array, type.loader) do

    dispatch :to_array do
      param           'Variant[Array,Hash,Binary,Iterable]', :from
      optional_param  'Boolean[false]', :wrap
    end

    dispatch :wrapped do
      param  'Any',           :from
      param  'Boolean[true]', :wrap
    end

    argument_mismatch :on_error do
      param  'Any',             :from
      optional_param 'Boolean', :wrap
    end

    def wrapped(from, _)
      from.is_a?(Array) ? from : [from]
    end

    def to_array(from, _ = false)
      case from
      when Array
        from
      when Hash
        from.to_a
      when PBinaryType::Binary
        # For older rubies, the #bytes method returns an Enumerator that must be rolled out
        from.binary_buffer.bytes.to_a
      else
        Iterable.on(from).to_a
      end
    end

    def on_error(from, _ = false)
      t = TypeCalculator.singleton.infer(from).generalize
      _("Value of type %{type} cannot be converted to Array") % { type: t }
    end
  end
end

.register_ptype(loader, ir) ⇒ Object 


2510
2511
2512
2513
2514
2515
2516
2517
 
# File 'lib/puppet/pops/types/types.rb', line 2510

def self.register_ptype(loader, ir)
  create_ptype(loader, ir, 'CollectionType',
    'element_type' => {
      KEY_TYPE => POptionalType.new(PTypeType::DEFAULT),
      KEY_VALUE => PAnyType::DEFAULT
    }
  )
end

Instance Method Details

#accept(visitor, guard) ⇒ Object 


2530
2531
2532
2533
 
# File 'lib/puppet/pops/types/types.rb', line 2530

def accept(visitor, guard)
  super
  @element_type.accept(visitor, guard)
end

#callable_args?(callable, guard = nil) ⇒ Boolean

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future. 


2536
2537
2538
2539
2540
2541
 
# File 'lib/puppet/pops/types/types.rb', line 2536

def callable_args?(callable, guard = nil)
  param_t = callable.param_types
  block_t = callable.block_type
  # does not support calling with a block, but have to check that callable is ok with missing block
  (param_t.nil? || param_t.assignable?(self, guard)) && (block_t.nil? || block_t.assignable?(PUndefType::DEFAULT, guard))
end

#eql?(o) ⇒ Boolean 


2552
2553
2554
 
# File 'lib/puppet/pops/types/types.rb', line 2552

def eql?(o)
  super && @element_type == o.element_type
end

#generalize ⇒ Object 


2543
2544
2545
2546
2547
2548
2549
2550
 
# File 'lib/puppet/pops/types/types.rb', line 2543

def generalize
  if PAnyType::DEFAULT.eql?(@element_type)
    DEFAULT
  else
    ge_type = @element_type.generalize
    @size_type.nil? && @element_type.equal?(ge_type) ? self : self.class.new(ge_type, nil)
  end
end

#hash ⇒ Object 


2556
2557
2558
 
# File 'lib/puppet/pops/types/types.rb', line 2556

def hash
  super ^ @element_type.hash
end

#instance?(o, guard = nil) ⇒ Boolean 


2574
2575
2576
2577
2578
2579
2580
 
# File 'lib/puppet/pops/types/types.rb', line 2574

def instance?(o, guard = nil)
  # The inferred type of a class derived from Array is either Runtime or Object. It's not assignable to the Array type.
  return false unless o.instance_of?(Array)
  return false unless o.all? {|element| @element_type.instance?(element, guard) }
  size_t = size_type
  size_t.nil? || size_t.instance?(o.size, guard)
end

#iterable_type(guard = nil) ⇒ Object 


2582
2583
2584
 
# File 'lib/puppet/pops/types/types.rb', line 2582

def iterable_type(guard = nil)
  PAnyType::DEFAULT.eql?(@element_type) ? PIterableType::DEFAULT : PIterableType.new(@element_type)
end

#normalize(guard = nil) ⇒ Object 


2560
2561
2562
2563
2564
2565
2566
2567
 
# File 'lib/puppet/pops/types/types.rb', line 2560

def normalize(guard = nil)
  if PAnyType::DEFAULT.eql?(@element_type)
    DEFAULT
  else
    ne_type = @element_type.normalize(guard)
    @element_type.equal?(ne_type) ? self : self.class.new(ne_type, @size_type)
  end
end

#resolve(loader) ⇒ Object 


2569
2570
2571
2572
 
# File 'lib/puppet/pops/types/types.rb', line 2569

def resolve(loader)
  relement_type = @element_type.resolve(loader)
  relement_type.equal?(@element_type) ? self : self.class.new(relement_type, @size_type)
end