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Contents
module Seahorse
module Model
# @api private
class ShapeMap
# @param [Hash<String,Hash>] shape_defs ({}) A hash of shape definitions.
# Hash keys should be shape names. Hash values should be shape
# definitions.
def initialize(shape_defs = {})
@definitions = shape_defs
@shapes = {}
end
# @return [Hash]
attr_reader :definitions
# @param [Hash] shape_ref
# @option shape_ref [required, String] 'shape'
# @return [Shapes::Shape]
# @raise [ArgumentError] Raised when the given shape ref can not be
# resolved.
def shape(shape_ref)
@shapes[shape_ref] ||= build_shape(shape_ref)
end
# @return [Array<String>]
def shape_names
@definitions.keys
end
private
def build_shape(shape_ref)
Shapes::Shape.new(resolve(shape_ref), shape_map: self)
end
def resolve(shape_ref)
if definition = @definitions[shape_ref['shape']]
definition.merge(shape_ref)
else
raise ArgumentError, "shape not found for #{shape_ref.inspect}"
end
end
end
end
end
Version data entries
51 entries across 51 versions & 1 rubygems