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Versions: 16
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Stored size: 1.68 KB
Contents
require 'rom/commands/graph/input_evaluator'
module ROM
module Commands
class Graph
# Class methods for command Graph
#
# @api private
module ClassInterface
# Build a command graph recursively
#
# This is used by `Container#command` when array with options is passed in
#
# @param [Registry] registry The command registry from container
# @param [Array] options The options array
# @param [Array] path The path for input evaluator proc
#
# @return [Graph]
#
# @api private
def build(registry, options, path = EMPTY_ARRAY)
options.reduce { |spec, other| build_command(registry, spec, other, path) }
end
# @api private
def build_command(registry, spec, other, path)
cmd_opts, nodes = other
key, relation =
if spec.is_a?(Hash)
spec.to_a.first
else
[spec, spec]
end
name, opts =
if cmd_opts.is_a?(Hash)
cmd_opts.to_a.first
else
[cmd_opts]
end
command = registry[relation][name]
tuple_path = Array[*path] << key
input_proc = InputEvaluator.build(tuple_path, nodes)
command = command.curry(input_proc, opts)
if nodes
if nodes.all? { |node| node.is_a?(Array) }
command.combine(*nodes.map { |node| build(registry, node, tuple_path) })
else
command.combine(build(registry, nodes, tuple_path))
end
else
command
end
end
end
end
end
end
Version data entries
16 entries across 16 versions & 2 rubygems