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# Author:: Eric Crane (mailto:eric.crane@mac.com)
# Copyright:: Copyright (c) 2019 Eric Crane. All rights reserved.
#
# Create an object, optionally of a type.
#
module Gloo
module Verbs
class Tell < Gloo::Core::Verb
KEYWORD = 'tell'.freeze
KEYWORD_SHORT = '->'.freeze
TO = 'to'.freeze
OBJ_NOT_FOUND_ERR = 'Object was not found: '.freeze
UNKNOWN_MSG_ERR = 'Missing message!'.freeze
#
# Run the verb.
#
def run
setup_msg
return unless @msg
setup_target
dispatch_msg
end
#
# Get the Verb's keyword.
#
def self.keyword
return KEYWORD
end
#
# Get the Verb's keyword shortcut.
#
def self.keyword_shortcut
return KEYWORD_SHORT
end
# ---------------------------------------------------------------------
# Private functions
# ---------------------------------------------------------------------
private
#
# Lookup the message to send.
#
def setup_msg
@msg = @tokens.after_token( TO )
@engine.err( UNKNOWN_MSG_ERR ) unless @msg
end
#
# Setup the target of the message.
#
def setup_target
@obj_name = @tokens.second
pn = Gloo::Core::Pn.new( @engine, @obj_name )
@target_obj = pn.resolve
end
#
# Dispatch the message to the target object.
#
def dispatch_msg
if @target_obj
Gloo::Exec::Dispatch.message(
@engine, @msg, @target_obj, @params )
else
@engine.err "#{OBJ_NOT_FOUND_ERR} #{@obj_name}"
end
end
end
end
end
Version data entries
19 entries across 19 versions & 1 rubygems