[jira] [Commented] (GROOVY-11014) CompileStatic & Elvis operator: Cannot assign literal value of type (java.lang.Number or java.lang.Comparable) to variable of type double
[
https://issues.apache.org/jira/browse/GROOVY-11014?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=17782255#comment-17782255
]
Eric Milles commented on GROOVY-11014:
--
Similar issues: GROOVY-11006, GROOVY-10359, GROOVY-10095, GROOVY-8488,
GROOVY-8325
> CompileStatic & Elvis operator: Cannot assign literal value of type
> (java.lang.Number or java.lang.Comparable) to variable of type double
> -
>
> Key: GROOVY-11014
> URL: https://issues.apache.org/jira/browse/GROOVY-11014
> Project: Groovy
> Issue Type: Bug
> Components: Compiler
>Affects Versions: 4.0.5
>Reporter: Jason Garrett
>Assignee: Eric Milles
>Priority: Minor
> Fix For: 5.0.0-alpha-3, 4.0.16
>
>
> {code:java}
> import groovy.transform.CompileStatic
> @CompileStatic
> class ElvisLiteralAssign {
> Double x = null
> double y = x?.doubleValue() ?: 0
> } {code}
> This class fails to compile with error: [Static type checking] - Cannot
> assign value of type (java.lang.Number or java.lang.Comparable) to variable
> of type double
> This affects at least 4.0.10 and 4.0.11, and does not affect 3.0.16 or 3.0.17.
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[jira] [Commented] (GROOVY-11014) CompileStatic & Elvis operator: Cannot assign literal value of type (java.lang.Number or java.lang.Comparable) to variable of type double
[
https://issues.apache.org/jira/browse/GROOVY-11014?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=17782152#comment-17782152
]
Eric Milles commented on GROOVY-11014:
--
Before Groovy 4.0.5, there's a block in {{WideningCategories}} for this:
{code:java}
if (isNumberType(a.redirect()) && isNumberType(b.redirect())) {
ClassNode ua = getUnwrapper(a);
ClassNode ub = getUnwrapper(b);
Integer pa = NUMBER_TYPES_PRECEDENCE.get(ua);
Integer pb = NUMBER_TYPES_PRECEDENCE.get(ub);
if (pa != null && pb != null) {
return (pa <= pb ? a : b);
}
}
{code}
> CompileStatic & Elvis operator: Cannot assign literal value of type
> (java.lang.Number or java.lang.Comparable) to variable of type double
> -
>
> Key: GROOVY-11014
> URL: https://issues.apache.org/jira/browse/GROOVY-11014
> Project: Groovy
> Issue Type: Bug
> Components: Compiler
>Affects Versions: 4.0.5
>Reporter: Jason Garrett
>Priority: Minor
>
> {code:java}
> import groovy.transform.CompileStatic
> @CompileStatic
> class ElvisLiteralAssign {
> Double x = null
> double y = x?.doubleValue() ?: 0
> } {code}
> This class fails to compile with error: [Static type checking] - Cannot
> assign value of type (java.lang.Number or java.lang.Comparable) to variable
> of type double
> This affects at least 4.0.10 and 4.0.11, and does not affect 3.0.16 or 3.0.17.
--
This message was sent by Atlassian Jira
(v8.20.10#820010)
[jira] [Commented] (GROOVY-11014) CompileStatic & Elvis operator: Cannot assign literal value of type (java.lang.Number or java.lang.Comparable) to variable of type double
[
https://issues.apache.org/jira/browse/GROOVY-11014?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=17717772#comment-17717772
]
Eric Milles commented on GROOVY-11014:
--
You should be able to write "0" as "0d" or "0.0" or "(double) 0" and it should
make the necessary leap. There are a number of open issues like this where the
addition of a ternary puts a level of indirection between source and target.
STC tries to blend the two operand types when processing a ternary (elvis or
otherwise):
https://github.com/apache/groovy/blob/0fbda9b93eb600601dc2dd9b38389ca571310323/src/main/java/org/codehaus/groovy/transform/stc/StaticTypeCheckingVisitor.java#L4220
> CompileStatic & Elvis operator: Cannot assign literal value of type
> (java.lang.Number or java.lang.Comparable) to variable of type double
> -
>
> Key: GROOVY-11014
> URL: https://issues.apache.org/jira/browse/GROOVY-11014
> Project: Groovy
> Issue Type: Bug
> Components: Compiler
>Affects Versions: 4.0.10, 4.0.11
>Reporter: Jason Garrett
>Priority: Minor
>
> {code:java}
> import groovy.transform.CompileStatic
> @CompileStatic
> class ElvisLiteralAssign {
> Double x = null
> double y = x?.doubleValue() ?: 0
> } {code}
> This class fails to compile with error: [Static type checking] - Cannot
> assign value of type (java.lang.Number or java.lang.Comparable) to variable
> of type double
> This affects at least 4.0.10 and 4.0.11, and does not affect 3.0.16 or 3.0.17.
--
This message was sent by Atlassian Jira
(v8.20.10#820010)
