Class: Dry::Logic::Operations::Key
- Inherits:
-
Unary
show all
- Defined in:
- lib/dry/logic/operations/key.rb
Direct Known Subclasses
Attr
Instance Attribute Summary collapse
Attributes inherited from Unary
#rule
Attributes inherited from Abstract
#options, #rules
Class Method Summary
collapse
Instance Method Summary
collapse
Methods inherited from Abstract
#curry, #id, #new, #to_ast, #with
#and, #or, #then, #xor
Constructor Details
#initialize(*rules, **options) ⇒ Key
Returns a new instance of Key.
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# File 'lib/dry/logic/operations/key.rb', line 29
def initialize(*rules, **options)
super
@evaluator = options[:evaluator]
@path = options[:path]
end
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Instance Attribute Details
#evaluator ⇒ Object
Returns the value of attribute evaluator.
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# File 'lib/dry/logic/operations/key.rb', line 11
def evaluator
@evaluator
end
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#path ⇒ Object
Returns the value of attribute path.
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# File 'lib/dry/logic/operations/key.rb', line 13
def path
@path
end
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Class Method Details
.evaluator(name) ⇒ Object
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# File 'lib/dry/logic/operations/key.rb', line 25
def self.evaluator(name)
Evaluator::Key.new(name)
end
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.new(rules, options) ⇒ Object
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# File 'lib/dry/logic/operations/key.rb', line 15
def self.new(rules, options)
if options[:evaluator]
super
else
name = options.fetch(:name)
eval = options.fetch(:evaluator, evaluator(name))
super(rules, options.merge(evaluator: eval, path: name))
end
end
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Instance Method Details
#[](hash) ⇒ Object
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# File 'lib/dry/logic/operations/key.rb', line 50
def [](hash)
rule[evaluator[hash]]
end
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#ast(input = Undefined) ⇒ Object
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# File 'lib/dry/logic/operations/key.rb', line 54
def ast(input = Undefined)
if input.equal?(Undefined) || !input.is_a?(Hash)
[type, [path, rule.ast]]
else
[type, [path, rule.ast(evaluator[input])]]
end
end
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#call(hash) ⇒ Object
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# File 'lib/dry/logic/operations/key.rb', line 39
def call(hash)
input = evaluator[hash]
result = rule.(input)
if result.success?
Result::SUCCESS
else
Result.new(false, path) { [type, [path, result.to_ast]] }
end
end
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#to_s ⇒ Object
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# File 'lib/dry/logic/operations/key.rb', line 62
def to_s
"#{type}[#{path}](#{rule})"
end
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#type ⇒ Object
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# File 'lib/dry/logic/operations/key.rb', line 35
def type
:key
end
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