Go to main content

man pages section 1: User Commands

Exit Print View

Updated: Wednesday, July 27, 2022
 
 

typer (1)

Name

typer - Typer, a Type annotator for ERlang programs.

Synopsis

Please see following description for synopsis

Description

typer(1)                         User Commands                        typer(1)



NAME
       typer - Typer, a Type annotator for ERlang programs.


DESCRIPTION
       TypEr  shows type information for Erlang modules to the user. Addition-
       ally, it can annotate the code of files with such type information.

USING TYPER FROM THE COMMAND LINE
       TypEr is used from the command-line.  This  section  provides  a  brief
       description  of  the  options.  The same information can be obtained by
       writing the following in a shell:

       typer --help

       Usage:

       typer [--help] [--version] [--plt PLT] [--edoc]
             [--show | --show-exported | --annotate | --annotate-inc-files]
             [-Ddefine]* [-I include_dir]* [-pa dir]* [-pz dir]*
             [-T application]* [-r] file*

   Note:
       * denotes that multiple occurrences of the option are possible.


       Options:

         -r:
           Search directories recursively for .erl files below them.

         --show:
           Print type specifications for all functions on stdout. (This is the
           default behaviour; this option is not really needed.)

         --show-exported (or show_exported):
           Same  as  --show,  but  print specifications for exported functions
           only. Specs are displayed sorted alphabetically on  the  function's
           name.

         --annotate:
           Annotate the specified files with type specifications.

         --annotate-inc-files:
           Same  as  --annotate  but annotates all -include() files as well as
           all .erl files. (Use this option with caution -  it  has  not  been
           tested much).

         --edoc:
           Print type information as Edoc @spec comments, not as type specs.

         --plt:
           Use the specified dialyzer PLT file rather than the default one.

         -T file*:
           The specified file(s) already contain type specifications and these
           are to be trusted in order to print  specs  for  the  rest  of  the
           files.  (Multiple files or dirs, separated by spaces, can be speci-
           fied.)

         -Dname (or -Dname=value):
           Pass the defined name(s) to TypEr. (**)

         -I:
           Pass the include_dir to TypEr. (**)

         -pa dir:
           Include dir in the path for Erlang. This is useful  when  analyzing
           files that have -include_lib() directives or use parse transforms.

         -pz dir:
           Include  dir  in the path for Erlang. This is useful when analyzing
           files that have -include_lib() directives or use parse transforms.

         --version (or -v):
           Print the TypEr version and some more information and exit.

   Note:
       ** options -D and -I work both from the command line and in  the  TypEr
       GUI;  the  syntax  of  defines and includes is the same as that used by
       erlc(1).



Ericsson AB                     dialyzer 4.4.3                        typer(1)