NAME

Data::Sah::DefaultValueJS - Generate code to set default value

VERSION

This document describes version 0.002 of Data::Sah::DefaultValueJS (from Perl distribution Data-Sah-DefaultValue), released on 2023-01-20.

SYNOPSIS

 use Data::Sah::DefaultValueJS qw(gen_default_value_code);

 # use as you would use Data::Sah::DefaultValue

DESCRIPTION

This module is just like Data::Sah::DefaultValue except that it uses JavaScript default-value rule modules.

VARIABLES

$Log_Default_Value_Code => bool (default: from ENV or 0)

If set to true, will log the generated default-value code (currently using Log::ger at trace level). To see the log message, e.g. to the screen, you can use something like:

 % TRACE=1 perl -MLog::ger::LevelFromEnv -MLog::ger::Output=Screen \
     -MData::Sah::DefaultValueJS=gen_default_value_code -E'my $c = gen_default_value_code(...)'

FUNCTIONS

gen_default_value_code

Usage:

 gen_default_value_code(%args) -> any

Generate code to set default value.

This is mostly for testing. Normally the coercion rules will be used from Data::Sah.

This function is not exported by default, but exportable.

Arguments ('*' denotes required arguments):

• default_value_rules => array[str]

  A specification of default-value rules to use (or avoid).

  This setting is used to specify which default-value rules to use (or avoid) in a flexible way. Each element is a string, in the form of either NAME to mean specifically include a rule, or !NAME to exclude a rule.

  To use the default-value rules R1 and R2:

   ['R1', 'R2']

• source => bool

  If set to true, will return coercer source code string instead of compiled code.

Return value: (any)

ENVIRONMENT

LOG_DEFAULT_VALUE_CODE => bool

Set default for $Log_Default_Value_Code.

HOMEPAGE

Please visit the project's homepage at https://metacpan.org/release/Data-Sah-DefaultValue.

SOURCE

Source repository is at https://github.com/perlancar/perl-Data-Sah-DefaultValue.

SEE ALSO

Data::Sah::DefaultValue

App::SahUtils

AUTHOR

perlancar <perlancar@cpan.org>

CONTRIBUTING

To contribute, you can send patches by email/via RT, or send pull requests on GitHub.

Most of the time, you don't need to build the distribution yourself. You can simply modify the code, then test via:

 % prove -l

If you want to build the distribution (e.g. to try to install it locally on your system), you can install Dist::Zilla, Dist::Zilla::PluginBundle::Author::PERLANCAR, Pod::Weaver::PluginBundle::Author::PERLANCAR, and sometimes one or two other Dist::Zilla- and/or Pod::Weaver plugins. Any additional steps required beyond that are considered a bug and can be reported to me.

COPYRIGHT AND LICENSE

This software is copyright (c) 2023, 2021 by perlancar <perlancar@cpan.org>.

This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself.

BUGS

Please report any bugs or feature requests on the bugtracker website https://rt.cpan.org/Public/Dist/Display.html?Name=Data-Sah-DefaultValue

When submitting a bug or request, please include a test-file or a patch to an existing test-file that illustrates the bug or desired feature.

cpanm Data::Sah::DefaultValue

perl -MCPAN -e shell
install Data::Sah::DefaultValue