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Contents
# frozen_string_literal: true
module GraphQL
class Schema
# Tools for working with schema masks (`only` / `except`).
#
# In general, these are functions which, when they return `true`,
# the `member` is hidden for the current query.
#
# @api private
module Mask
module_function
# Combine a schema's default_mask with query-level masks.
def combine(default_mask, except:, only:)
query_mask = if except
except
elsif only
InvertedMask.new(only)
end
if query_mask && (default_mask != GraphQL::Schema::NullMask)
EitherMask.new(default_mask, query_mask)
else
query_mask || default_mask
end
end
# @api private
# Returns true when the inner mask returned false
# Returns false when the inner mask returned true
class InvertedMask
def initialize(inner_mask)
@inner_mask = inner_mask
end
def call(member, ctx)
!@inner_mask.call(member, ctx)
end
end
# Hides `member` if _either_ mask would hide the member.
# @api private
class EitherMask
def initialize(first_mask, second_mask)
@first_mask = first_mask
@second_mask = second_mask
end
def call(member, ctx)
@first_mask.call(member, ctx) || @second_mask.call(member, ctx)
end
end
end
end
end
Version data entries
13 entries across 13 versions & 1 rubygems