class Hashiform
Public Class Methods
new(original_hash, catalysts = {})
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# File lib/hashiform.rb, line 2 def initialize(original_hash, catalysts = {}) @original_hash = original_hash @catalysts = catalysts end
Public Instance Methods
apply_mod(modifier, value)
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# File lib/hashiform.rb, line 34 def apply_mod(modifier, value) return :_reject if modifier =~ /^if/ && value.nil? mod, arg_list = modifier.split('+') args = if arg_list arg_list =~ /^,/ ? arg_list : arg_list.split(/, ?/) end case mod when sendable(value) args ? value.public_send(mod, *args) : value.public_send(mod) when catalyst_target? @catalysts[mod][value] else value end end
transform(mapping)
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# File lib/hashiform.rb, line 7 def transform(mapping) new_hash = {} mapping.each do |new_key, transformation| *modifiers, path = transformation.split(':') path_segments = path.split('.') value = @original_hash.dig(*path_segments) if modifiers.empty? new_hash[new_key] = value else value = modifiers.reduce(value) do |new_value, mod| new_value = apply_mod(mod, new_value) break new_value if new_value == :_reject new_value end new_hash[new_key] = value unless value == :_reject end end new_hash end
Private Instance Methods
catalyst_target?()
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# File lib/hashiform.rb, line 57 def catalyst_target? -> mod { @catalysts.key?(mod) } end
sendable(value)
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# File lib/hashiform.rb, line 61 def sendable(value) -> meth { value.respond_to?(meth) } end