Sha256: d3e92d83e5719bcb6e870dd97ad2afc319ee4486dc38e814490b9f4b9dfd5f11
Contents?: true
Size: 1.27 KB
Versions: 10
Compression:
Stored size: 1.27 KB
Contents
require 'rom/relation/lazy'
module ROM
class Relation
class Curried < Lazy
option :name, type: Symbol, reader: true
option :arity, type: Integer, reader: true, default: -1
option :curry_args, type: Array, reader: true, default: EMPTY_ARRAY
# Load relation if args match the arity
#
# @return [Loaded,Lazy,Curried]
# @see Lazy#call
#
# @api public
def call(*args)
if arity != -1
all_args = curry_args + args
if arity == all_args.size
Loaded.new(relation.__send__(name, *all_args))
else
__new__(relation, curry_args: all_args)
end
else
super
end
end
alias_method :[], :call
# @api public
def to_a
raise(
ArgumentError,
"#{relation.class}##{name} arity is #{arity} " \
"(#{curry_args.size} args given)"
)
end
alias_method :to_ary, :to_a
# Return if this lazy relation is curried
#
# @return [true]
#
# @api private
def curried?
true
end
private
# @api private
def __new__(relation, new_opts = {})
Curried.new(relation, options.merge(new_opts))
end
end
end
end
Version data entries
10 entries across 10 versions & 1 rubygems