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Versions: 14
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Contents
module Formalist
class Element
class Attributes
# Returns the attributes hash.
attr_reader :attrs
# Creates an attributes object from the supplied hash.
#
# @param attrs [Hash] hash of form element attributes
def initialize(attrs = {})
@attrs = attrs
end
# Returns the attributes as an abstract syntax tree.
#
# @return [Array] the abstract syntax tree
def to_ast
deep_to_ast(deep_simplify(attrs))
end
private
def deep_to_ast(value)
case value
when Hash
[:object, [value.map { |k,v| [k.to_sym, deep_to_ast(v)] }].reject(&:empty?).flatten(1)]
when Array
[:array, value.map { |v| deep_to_ast(v) }]
when String, Numeric, TrueClass, FalseClass, NilClass
[:value, [value]]
else
[:value, [value.to_s]]
end
end
def deep_simplify(value)
case value
when Hash
value.each_with_object({}) { |(k,v), output| output[k] = deep_simplify(v) }
when Array
value.map { |v| deep_simplify(v) }
when String, Numeric, TrueClass, FalseClass, NilClass
value
else
if value.respond_to?(:to_h)
deep_simplify(value.to_h)
else
value.to_s
end
end
end
end
end
end
Version data entries
14 entries across 14 versions & 1 rubygems