trusty (3) erl_id_trans.3erl.gz

NAME

       erl_id_trans - An Identity Parse Transform

DESCRIPTION

       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.

EXPORTS

       parse_transform(Forms, Options) -> Forms

              Types:

                 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.

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

SEE ALSO

       erl_parse(3erl), compile(3erl).