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# frozen_string_literal: true
module Gem::SafeMarshal::Visitors
class Visitor
def visit(target)
send DISPATCH.fetch(target.class), target
end
private
DISPATCH = Gem::SafeMarshal::Elements.constants.each_with_object({}) do |c, h|
next if c == :Element
klass = Gem::SafeMarshal::Elements.const_get(c)
h[klass] = :"visit_#{klass.name.gsub("::", "_")}"
h.default = :visit_unknown_element
end.compare_by_identity.freeze
private_constant :DISPATCH
def visit_unknown_element(e)
raise ArgumentError, "Attempting to visit unknown element #{e.inspect}"
end
def visit_Gem_SafeMarshal_Elements_Array(target)
target.elements.each {|e| visit(e) }
end
def visit_Gem_SafeMarshal_Elements_Bignum(target); end
def visit_Gem_SafeMarshal_Elements_False(target); end
def visit_Gem_SafeMarshal_Elements_Float(target); end
def visit_Gem_SafeMarshal_Elements_Hash(target)
target.pairs.each do |k, v|
visit(k)
visit(v)
end
end
def visit_Gem_SafeMarshal_Elements_HashWithDefaultValue(target)
visit_Gem_SafeMarshal_Elements_Hash(target)
visit(target.default)
end
def visit_Gem_SafeMarshal_Elements_Integer(target); end
def visit_Gem_SafeMarshal_Elements_Nil(target); end
def visit_Gem_SafeMarshal_Elements_Object(target)
visit(target.name)
end
def visit_Gem_SafeMarshal_Elements_ObjectLink(target); end
def visit_Gem_SafeMarshal_Elements_String(target); end
def visit_Gem_SafeMarshal_Elements_Symbol(target); end
def visit_Gem_SafeMarshal_Elements_SymbolLink(target); end
def visit_Gem_SafeMarshal_Elements_True(target); end
def visit_Gem_SafeMarshal_Elements_UserDefined(target)
visit(target.name)
end
def visit_Gem_SafeMarshal_Elements_UserMarshal(target)
visit(target.name)
visit(target.data)
end
def visit_Gem_SafeMarshal_Elements_WithIvars(target)
visit(target.object)
target.ivars.each do |k, v|
visit(k)
visit(v)
end
end
end
end
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