You are viewing a plain text version of this content. The canonical link for it is here.
Posted to notifications@groovy.apache.org by "Brian G. Shacklett (JIRA)" <ji...@apache.org> on 2019/04/23 12:30:00 UTC
[jira] [Commented] (GROOVY-8212) coerce GString to String when used
as Map key
[ https://issues.apache.org/jira/browse/GROOVY-8212?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16824074#comment-16824074 ]
Brian G. Shacklett commented on GROOVY-8212:
--------------------------------------------
Has anyone found any good workarounds for this issue? I'm currently wrapping my map literal in `(collectEntries\{ k,v -> [(k.toString()):v]})`, because I haven't found any way to get Groovy to use a proper string as the key if the value is dynamic. Unfortunately, this doesn't work unless only the top level key is being set dynamically.
> coerce GString to String when used as Map key
> ---------------------------------------------
>
> Key: GROOVY-8212
> URL: https://issues.apache.org/jira/browse/GROOVY-8212
> Project: Groovy
> Issue Type: Bug
> Components: Static compilation, Static Type Checker
> Affects Versions: 2.4.10
> Reporter: Christopher Smith
> Assignee: Daniel Sun
> Priority: Minor
>
> When a GString is used as the key for a bracket-style map get (in this case, from an overly verbose CSV file):
> {code}
> row["$param URL"]
> {code}
> the {{GStringImpl}} object is passed directly to {{Map#get(Object)}}. Since GStrings are never equal to Strings, this means that the get will always return null.
> If {{row}} is explicitly declared as a {{Map<String,?>}}, however, Groovy ought to identify the intended behavior (using a templated string as a map key) and use the string value instead.
> The current behavior is a problem because even in static compilation mode, where the generic key bound is known, Groovy does not complain about the use of a GString here (because it normally treats GStrings as valid for {{String}} targets?), but the lookup will fail at runtime.
--
This message was sent by Atlassian JIRA
(v7.6.3#76005)