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.TH erl_id_trans 3 "stdlib 1.15.3" "Ericsson AB" "ERLANG MODULE DEFINITION"
.SH MODULE
erl_id_trans \- An Identity Parse Transform
.SH DESCRIPTION
.LP
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 \fI{parse_transform, Module}\fR is passed to the compiler, a user written function \fIparse_transform/2\fR is called by the compiler before the code is checked for errors\&.
.SH EXPORTS
.LP
.B
parse_transform(Forms, Options) -> Forms
.br
.RS
.TP
Types
Forms = [erlang_form()]
.br
Options = [compiler_options()]
.br
.RE
.RS
.LP
Performs an identity transformation on Erlang forms, as an example\&.
.RE
.SH PARSE TRANSFORMATIONS
.LP
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\&.
.SS Note:
.LP
Programmers are strongly advised not to engage in parse transformations and no support is offered for problems encountered\&.
.SH SEE ALSO
.LP
erl_parse(3), compile(3)\&.
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