1996 2013 Ericsson AB, All Rights Reserved The contents of this file are subject to the Erlang Public License, Version 1.1, (the "License"); you may not use this file except in compliance with the License. You should have received a copy of the Erlang Public License along with this software. If not, it can be retrieved online at http://www.erlang.org/. Software distributed under the License is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License for the specific language governing rights and limitations under the License. The Initial Developer of the Original Code is Ericsson AB. erl_id_trans Robert Virding Bjarne Däcker 1 Bjarne Däcker 97-01-21 B erl_id_trans.sgml
erl_id_trans An Identity Parse Transform

This module performs an identity parse transformation of Erlang code. It is included as an example for users who may wish to write their own parse transformers. If the option {parse_transform,Module} is passed to the compiler, a user written function parse_transform/2 is called by the compiler before the code is checked for errors.

 parse_transform(Forms, Options) -> Forms Transform Erlang forms Forms = [erl_parse:abstract_form()] Options = [compile:option()]

Performs an identity transformation on Erlang forms, as an example.
Parse Transformations

Parse transformations are used if a programmer wants to use Erlang syntax, but with different semantics. The original Erlang code is then transformed into other Erlang code.

Programmers are strongly advised not to engage in parse transformations and no support is offered for problems encountered.
See Also

erl_parse(3), compile(3).