--------------------------------------------------------------------------------
--  Copyright (c) 2012 Sierra Wireless.
--  All rights reserved. This program and the accompanying materials
--  are made available under the terms of the Eclipse Public License v1.0
--  which accompanies this distribution, and is available at
--  http://www.eclipse.org/legal/epl-v10.html
--
--  Contributors:
--       Kevin KIN-FOO <kkinfoo@sierrawireless.com>
--           - initial API and implementation and initial documentation
--------------------------------------------------------------------------------
local M = {}

function M._internalcontent()
  return {
    content = nil,                  -- block
    unknownglobalvars = {},         -- list of item
    tag = "MInternalContent"
  }
end

function M._block()
  return {
    content = {},                   -- list of expr (identifier, index, call, invoke, block)
    localvars = {},                 -- list of {var=item, scope ={min,max}}
    sourcerange = {min=0,max=0},
    tag = "MBlock"
  }
end

function M._identifier()
  return {
    definition = nil,                -- item
    sourcerange = {min=0,max=0},
    tag = "MIdentifier"
  }
end

function M._index(key, value)
  return {
    left= key,                      -- expr (identifier, index, call, invoke, block)
    right= value,                   -- string
    sourcerange = {min=0,max=0},
    tag = "MIndex"
  }
end

function M._call(funct)
  return {
    func = funct,                   -- expr (identifier, index, call, invoke, block)
    sourcerange = {min=0,max=0},
    tag = "MCall"
  }
end

function M._invoke(name, expr)
  return {
    functionname = name,            -- string
    record = expr,                  -- expr (identifier, index, call, invoke, block)
    sourcerange = {min=0,max=0},
    tag = "MInvoke"
  }
end

return M