RFR: 8261006: 'super' qualified method references cannot occur in a static context [v4]
Vicente Romero
vromero at openjdk.java.net
Sat Jun 26 02:23:26 UTC 2021
> Please review this PR, currently javac is accepting code like:
>
>
> import java.util.function.Supplier;
>
> public class MethodReferenceInConstructorInvocation {
> interface Bar {
> default String getString() { return ""; }
> }
>
> static class Foo implements Bar {
> public Foo() { this(Bar.super::getString); }
> public Foo(Supplier<String> sString) {}
> }
> }
>
>
> but the spec states in `15.13 Method Reference Expressions`:
>
> If a method reference expression has the form super :: [TypeArguments] Identifier
> or TypeName . super :: [TypeArguments] Identifier, it is a compile-time error if
> the expression occurs in a static context (ยง8.1.3).
>
> and a constructor invocation is a static context. So method references of this form, qualified by `super`, should be rejected by the compiler if they appear in a static context.
>
> TIA
Vicente Romero has updated the pull request incrementally with one additional commit since the last revision:
updating comment
-------------
Changes:
- all: https://git.openjdk.java.net/jdk/pull/4376/files
- new: https://git.openjdk.java.net/jdk/pull/4376/files/23bbeb43..a6056843
Webrevs:
- full: https://webrevs.openjdk.java.net/?repo=jdk&pr=4376&range=03
- incr: https://webrevs.openjdk.java.net/?repo=jdk&pr=4376&range=02-03
Stats: 2 lines in 1 file changed: 1 ins; 0 del; 1 mod
Patch: https://git.openjdk.java.net/jdk/pull/4376.diff
Fetch: git fetch https://git.openjdk.java.net/jdk pull/4376/head:pull/4376
PR: https://git.openjdk.java.net/jdk/pull/4376
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