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Contents
module Isomorfeus
module Data
module PropDeclaration
# props, very similar to Components:
# prop :text, class: String # a required prop of class String, class must match exactly
# prop :other, is_a: Enumerable # a required prop, which can be a Array for example, but at least must be a Enumerable
# prop :cool, default: 'yet some more text' # a optional prop with a default value
# prop :even_cooler, class: String, required: false
def prop(prop_name, options_hash = {})
declared_props[prop_name.to_sym] = options_hash
end
def declared_props
@declared_props ||= {}
end
def validate_props(props_hash)
p = declared_props
props = Isomorfeus::Data::Props.new(props_hash)
raise "#{self}: Wrong or to many props given!" if (props.keys - p.keys).size > 0
# validation
p.each_key do |key|
# determine if prop is required
required = if p[key].key?(:required)
p[key][:required]
elsif p[key].key?(:default)
false
else
true
end
# assign value
value = if props.key?(key)
props[key]
elsif p[key].key?(:default)
props_hash[key] = p[key][:default].dup
else
raise "#{self}: Required prop not given: #{key}!" if required
nil
end
# check if passed value is of correct type
if props_hash.key?(key)
if p[key].key?(:class) && value.class != (p[key][:class])
raise "#{self}: #{key} value is not of class #{p[key][:class]} but instead a #{value.class}!"
end
if p[key].key?(:is_a) && !value.is_a?(p[key][:is_a])
raise "#{self}: #{key} value is not a #{p[key][:is_a]}!"
end
end
end
end
end
end
end
Version data entries
7 entries across 7 versions & 1 rubygems