Jira (PUP-5764) Support a single _ to mean ignored parameter
Title: Message Title David McTavish updated an issue Puppet / PUP-5764 Support a single _ to mean ignored parameter Change By: David McTavish Team: Froyo Add Comment This message was sent by Atlassian Jira (v8.20.2#820002-sha1:829506d) -- You received this message because you are subscribed to the Google Groups "Puppet Bugs" group. To unsubscribe from this group and stop receiving emails from it, send an email to puppet-bugs+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/puppet-bugs/JIRA.114277.1454004547000.10369.1640197440048%40Atlassian.JIRA.
Jira (PUP-5764) Support a single _ to mean ignored parameter
Title: Message Title David McTavish updated an issue Puppet / PUP-5764 Support a single _ to mean ignored parameter Change By: David McTavish Priority: Normal Low Add Comment This message was sent by Atlassian Jira (v8.13.2#813002-sha1:c495a97) -- You received this message because you are subscribed to the Google Groups "Puppet Bugs" group. To unsubscribe from this group and stop receiving emails from it, send an email to puppet-bugs+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/puppet-bugs/JIRA.114277.1454004547000.21052.1638815280598%40Atlassian.JIRA.
Jira (PUP-5764) Support a single _ to mean ignored parameter
Title: Message Title David McTavish updated an issue Puppet / PUP-5764 Support a single _ to mean ignored parameter Change By: David McTavish Labels: final_triage Add Comment This message was sent by Atlassian Jira (v8.13.2#813002-sha1:c495a97) -- You received this message because you are subscribed to the Google Groups "Puppet Bugs" group. To unsubscribe from this group and stop receiving emails from it, send an email to puppet-bugs+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/puppet-bugs/JIRA.114277.1454004547000.20704.1638807300218%40Atlassian.JIRA.
Jira (PUP-5764) Support a single _ to mean ignored parameter
Title: Message Title Henrik Lindberg updated an issue Puppet / PUP-5764 Support a single _ to mean ignored parameter Change By: Henrik Lindberg Component/s: Language Add Comment This message was sent by Atlassian JIRA (v6.4.14#64029-sha1:ae256fe) -- You received this message because you are subscribed to the Google Groups "Puppet Bugs" group. To unsubscribe from this group and stop receiving emails from it, send an email to puppet-bugs+unsubscr...@googlegroups.com. To post to this group, send email to puppet-bugs@googlegroups.com. Visit this group at https://groups.google.com/group/puppet-bugs. For more options, visit https://groups.google.com/d/optout.
Jira (PUP-5764) Support a single _ to mean ignored parameter
Title: Message Title Henrik Lindberg updated an issue Puppet / PUP-5764 Support a single _ to mean ignored parameter Change By: Henrik Lindberg Fix Version/s: PUP 4.y Add Comment This message was sent by Atlassian JIRA (v6.4.14#64029-sha1:ae256fe) -- You received this message because you are subscribed to the Google Groups "Puppet Bugs" group. To unsubscribe from this group and stop receiving emails from it, send an email to puppet-bugs+unsubscr...@googlegroups.com. To post to this group, send email to puppet-bugs@googlegroups.com. Visit this group at https://groups.google.com/group/puppet-bugs. For more options, visit https://groups.google.com/d/optout.
Jira (PUP-5764) Support a single _ to mean ignored parameter
Title: Message Title Henrik Lindberg updated an issue Puppet / PUP-5764 Support a single _ to mean ignored parameter Change By: Henrik Lindberg Labels: triaged Add Comment This message was sent by Atlassian JIRA (v6.4.14#64029-sha1:ae256fe) -- You received this message because you are subscribed to the Google Groups "Puppet Bugs" group. To unsubscribe from this group and stop receiving emails from it, send an email to puppet-bugs+unsubscr...@googlegroups.com. To post to this group, send email to puppet-bugs@googlegroups.com. Visit this group at https://groups.google.com/group/puppet-bugs. For more options, visit https://groups.google.com/d/optout.
Jira (PUP-5764) Support a single _ to mean ignored parameter
Title: Message Title Henrik Lindberg updated an issue Puppet / PUP-5764 Support a single _ to mean ignored parameter Change By: Henrik Lindberg Team: Puppet Developer Support Add Comment This message was sent by Atlassian JIRA (v6.4.14#64029-sha1:ae256fe) -- You received this message because you are subscribed to the Google Groups "Puppet Bugs" group. To unsubscribe from this group and stop receiving emails from it, send an email to puppet-bugs+unsubscr...@googlegroups.com. To post to this group, send email to puppet-bugs@googlegroups.com. Visit this group at https://groups.google.com/group/puppet-bugs. For more options, visit https://groups.google.com/d/optout.
Jira (PUP-5764) Support a single _ to mean ignored parameter
Title: Message Title Henrik Lindberg updated an issue Puppet / PUP-5764 Support a single _ to mean ignored parameter Change By: Henrik Lindberg Fix Version/s: PUP 4.6.0 Fix Version/s: PUP 4.y Add Comment This message was sent by Atlassian JIRA (v6.4.13#64028-sha1:b7939e9) -- You received this message because you are subscribed to the Google Groups "Puppet Bugs" group. To unsubscribe from this group and stop receiving emails from it, send an email to puppet-bugs+unsubscr...@googlegroups.com. To post to this group, send email to puppet-bugs@googlegroups.com. Visit this group at https://groups.google.com/group/puppet-bugs. For more options, visit https://groups.google.com/d/optout.
Jira (PUP-5764) Support a single _ to mean ignored parameter
Title: Message Title Henrik Lindberg updated an issue Puppet / PUP-5764 Support a single _ to mean ignored parameter Change By: Henrik Lindberg Fix Version/s: PUP 4.6.0 Add Comment This message was sent by Atlassian JIRA (v6.4.13#64028-sha1:b7939e9) -- You received this message because you are subscribed to the Google Groups "Puppet Bugs" group. To unsubscribe from this group and stop receiving emails from it, send an email to puppet-bugs+unsubscr...@googlegroups.com. To post to this group, send email to puppet-bugs@googlegroups.com. Visit this group at https://groups.google.com/group/puppet-bugs. For more options, visit https://groups.google.com/d/optout.
Jira (PUP-5764) Support a single _ to mean ignored parameter
Title: Message Title Henrik Lindberg commented on PUP-5764 Re: Support a single _ to mean ignored parameter An alternative is to accept that a parameter that only has a type is the same as entering _ Add Comment This message was sent by Atlassian JIRA (v6.4.13#64028-sha1:b7939e9) -- You received this message because you are subscribed to the Google Groups "Puppet Bugs" group. To unsubscribe from this group and stop receiving emails from it, send an email to puppet-bugs+unsubscr...@googlegroups.com. To post to this group, send email to puppet-bugs@googlegroups.com. Visit this group at https://groups.google.com/group/puppet-bugs. For more options, visit https://groups.google.com/d/optout.
Jira (PUP-5764) Support a single _ to mean ignored parameter
Title: Message Title
Henrik Lindberg created an issue
Puppet / PUP-5764
Support a single _ to mean ignored parameter
Issue Type:
Improvement
Assignee:
Unassigned
Created:
2016/01/28 10:09 AM
Priority:
Normal
Reporter:
Henrik Lindberg
It is of value to be able to define that a parameter should be ignored. This helps in situations where a lambda needs to have several parameters, but only some of them are actually needed. The user must otherwise name the parameter. Code checking (that we do not have yet though) would then find a declared parameter that is unused.
Using a _ instead of a parameter name also serves as a clear indication that it is ignored.
There should be no problems introducing a single _ as a keyword as that is not a meaningful bare word,
Here is an example:
{a => 10, b => 20}.each |$key, _ | { notice $key }
There are other uses cases for the single underscore, it does not always mean ignore, it can also be used as place to put a single injected values, and other use cases. The _ alone should be thought of as anonymous identifier or "Jane Doe".
