[jira] [Commented] (GROOVY-10628) Elvis assignment operator loses type information

2022-05-19 Thread Eric Milles (Jira)


[ 
https://issues.apache.org/jira/browse/GROOVY-10628?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17539756#comment-17539756
 ] 

Eric Milles commented on GROOVY-10628:
--

The static type checker creates expression "%.setTo((new RoutingInfo().to) ? 
new RoutingInfo().to : 'bob')" and tries to get the method target for the 
target type.  When the expression is reused for its getter semantic, something 
is going wrong.

> Elvis assignment operator loses type information
> 
>
> Key: GROOVY-10628
> URL: https://issues.apache.org/jira/browse/GROOVY-10628
> Project: Groovy
>  Issue Type: Bug
>  Components: Static Type Checker
>Affects Versions: 4.0.2
>Reporter: Christopher Smith
>Assignee: Eric Milles
>Priority: Major
>
> This class works as expected:
> {code}
> class RoutingInfo {
>   String to
>   void hello() { this.to ?= 'alice' }
> }
> {code}
> Trying to use Elvis assignment from a class _in another file_ (it must be 
> another file) causes the STC to lose track of the type of the RHS and 
> complain that it can't assign Object to String:
> {code}
> class Other {
>   void world() {
> new RoutingInfo().to ?= 'bob'
>   }
> }
> {code}
> {code}
> Groovy:[Static type checking] - Cannot assign value of type java.lang.Object 
> to variable of type java.lang.String
> {code}



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[jira] [Commented] (GROOVY-10628) Elvis assignment operator loses type information

2022-05-19 Thread Eric Milles (Jira)


[ 
https://issues.apache.org/jira/browse/GROOVY-10628?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17539750#comment-17539750
 ] 

Eric Milles commented on GROOVY-10628:
--

If you change "String to" to "public String to" or "void setTo(String to) { ... 
}" do you get the same thing?  There is some special property node handling and 
I'm trying to see if that is where the problem lies.

> Elvis assignment operator loses type information
> 
>
> Key: GROOVY-10628
> URL: https://issues.apache.org/jira/browse/GROOVY-10628
> Project: Groovy
>  Issue Type: Bug
>  Components: Static Type Checker
>Affects Versions: 4.0.2
>Reporter: Christopher Smith
>Priority: Major
>
> This class works as expected:
> {code}
> class RoutingInfo {
>   String to
>   void hello() { this.to ?= 'alice' }
> }
> {code}
> Trying to use Elvis assignment from a class _in another file_ (it must be 
> another file) causes the STC to lose track of the type of the RHS and 
> complain that it can't assign Object to String:
> {code}
> class Other {
>   void world() {
> new RoutingInfo().to ?= 'bob'
>   }
> }
> {code}
> {code}
> Groovy:[Static type checking] - Cannot assign value of type java.lang.Object 
> to variable of type java.lang.String
> {code}



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