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# Author:: Eric Crane (mailto:eric.crane@mac.com)
# Copyright:: Copyright (c) 2019 Eric Crane. All rights reserved.
#
# An object that contains a collection of other objects.
#
module Gloo
module Objs
class Container < Gloo::Core::Obj
KEYWORD = 'container'.freeze
KEYWORD_SHORT = 'can'.freeze
#
# The name of the object type.
#
def self.typename
return KEYWORD
end
#
# The short name of the object type.
#
def self.short_typename
return KEYWORD_SHORT
end
# ---------------------------------------------------------------------
# Messages
# ---------------------------------------------------------------------
#
# Get a list of message names that this object receives.
#
def self.messages
return super + %w[count delete_children child_exists show_key_value_table]
end
#
# Count the number of children in the container.
#
def msg_count
i = child_count
@engine.heap.it.set_to i
return i
end
#
# Delete all children in the container.
#
def msg_delete_children
self.delete_children
end
#
# Show the given table data.
#
def msg_show_key_value_table
data = self.children.map { |o| [ o.name, o.value ] }
@engine.platform.table.show [], data
end
#
# Check to see if there is a child with the given name.
#
def msg_child_exists
if @params&.token_count&.positive?
expr = Gloo::Expr::Expression.new( @engine, @params.tokens )
data = expr.evaluate
end
return unless data
val = self.contains_child?( data )
@engine.heap.it.set_to val
return val
end
end
end
end
Version data entries
8 entries across 8 versions & 1 rubygems