92 lines
2.7 KiB
Ruby
92 lines
2.7 KiB
Ruby
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module RKelly
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module JS
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class Base
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attr_reader :properties, :return, :value
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def initialize
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@properties = Hash.new { |h,k|
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h[k] = Property.new(k, :undefined, self)
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}
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@return = nil
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@returned = false
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@value = self
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self['Class'] = self.class.to_s.split('::').last
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end
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def [](name)
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return self.properties[name] if has_property?(name)
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if self.properties['prototype'].value != :undefined
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self.properties['prototype'].value[name]
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else
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RKelly::Runtime::UNDEFINED
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end
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end
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def []=(name, value)
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return unless can_put?(name)
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if has_property?(name)
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self.properties[name].value = value
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else
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self.properties[name] = Property.new(name, value, self)
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end
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end
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def can_put?(name)
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if !has_property?(name)
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return true if self.properties['prototype'].nil?
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return true if self.properties['prototype'].value.nil?
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return true if self.properties['prototype'].value == :undefined
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return self.properties['prototype'].value.can_put?(name)
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end
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!self.properties[name].read_only?
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end
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def has_property?(name)
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return true if self.properties.has_key?(name)
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return false if self.properties['prototype'].nil?
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return false if self.properties['prototype'].value.nil?
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return false if self.properties['prototype'].value == :undefined
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self.properties['prototype'].value.has_property?(name)
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end
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def delete(name)
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return true unless has_property?(name)
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return false if self.properties[name].dont_delete?
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self.properties.delete(name)
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true
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end
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def default_value(hint)
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case hint
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when 'Number'
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value_of = self['valueOf']
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if value_of.function || value_of.value.is_a?(RKelly::JS::Function)
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return value_of
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end
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to_string = self['toString']
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if to_string.function || to_string.value.is_a?(RKelly::JS::Function)
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return to_string
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end
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end
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end
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def return=(value)
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@returned = true
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@return = value
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end
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def returned?; @returned; end
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private
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def unbound_method(name, object_id = nil, &block)
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name = "#{name}_#{self.class.to_s.split('::').last}_#{object_id}"
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unless RKelly::JS::Base.instance_methods.include?(name.to_sym)
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RKelly::JS::Base.class_eval do
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define_method(name, &block)
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end
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end
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RKelly::JS::Base.instance_method(name)
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end
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end
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end
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end
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