Class: Filigree::MultipleObjectPattern

Inherits:
BasicPattern show all
Extended by:
AbstractClass
Defined in:
lib/filigree/match.rb

Overview

An abstract class that matches multiple objects to multiple patterns.

Direct Known Subclasses

DestructuringPattern, OuterPattern

Instance Method Summary collapse

Methods included from AbstractClass

abstract_method, extended, install_icvars, new

Methods inherited from BasicPattern

#as, #match_pattern_element

Constructor Details

#initialize(pattern) ⇒ MultipleObjectPattern

Create a new pattern with multiple elements.

Parameters:

  • pattern (Array<Object>) —

    Array of pattern elements



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# File 'lib/filigree/match.rb', line 386

def initialize(pattern)
	@pattern = pattern
end

Instance Method Details

#match?(objects, env) ⇒ Boolean

Test multiple objects against multiple pattern elements.

Parameters:

  • objects (Object) —

    Object to test pattern against

Returns:

  • (Boolean) 


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# File 'lib/filigree/match.rb', line 395

def match?(objects, env)
	if objects.length == @pattern.length
		@pattern.zip(objects).each do |pattern_elem, object|
			return false unless match_pattern_element(pattern_elem, object, env)
		end
	
		true
	
	else
		(@pattern.length == 1 and @pattern.first == WildcardPattern.instance)
	end
end