[lworld] RFR: 8369062: [lworld] Do not allow references to instance fields before a this() invocation [v2]

[Chen Liang]

On Sun, 5 Oct 2025 13:50:53 GMT, Vicente Romero <vromero at openjdk.org> wrote:

>> implementation of [1] in valhalla. This means that code like:
>> 
>> class Inner7 {
>>     private int x;
>> 
>>     public Inner7(byte y) {
>>         x = y;  // error can't refer to an instance field before a this() invocation
>>         this((int)y);
>>     }
>>     public Inner7(int x) {
>>         this.x = x;
>>         super();
>>     }
>> }
>> 
>> 
>> won't be accepted by javac
>> [1] https://bugs.openjdk.org/browse/JDK-8368719
>
> Vicente Romero has updated the pull request incrementally with one additional commit since the last revision:
> 
>   addressing review comments

Looks good. We can later determine what kind of warning we want to emit for existing usages.

-------------

Marked as reviewed by liach (Committer).

PR Review: https://git.openjdk.org/valhalla/pull/1659#pullrequestreview-3302531031