Psalm doesn't work with const array when key is enum value

[AndreyThompson]

I have const array in class and I use enum's value as key.
Psalm is going crazy with "Constant TranscodingCreateRequestFactory::MAP is not defined"
https://psalm.dev/r/ed2358aa53

But if change array key to simple string - everything works
https://psalm.dev/r/992a7c1602

[psalm-github-bot]

I found these snippets:

https://psalm.dev/r/ed2358aa53

<?php
enum TranscodeTypeEnum: string
{
    case Case1 = 'case 1';
}

class myClass {}

class TranscodingCreateRequestFactory
{
    private const MAP = [
        TranscodeTypeEnum::Case1->value => myClass::class,
    ];

    public function createObjectByEnumValue(string $value) : object
    {
        if (isset(self::MAP[$value])) {
            $classname = self::MAP[$value];

            return new $classname();
        }

        throw new RuntimeException('Unknown class for ' . $value);
    }
}

Psalm output (using commit 71bb951):

ERROR: UndefinedConstant - 17:19 - Constant TranscodingCreateRequestFactory::MAP is not defined

ERROR: UndefinedConstant - 18:26 - Constant TranscodingCreateRequestFactory::MAP is not defined

INFO: MixedAssignment - 18:13 - Unable to determine the type that $classname is being assigned to

INFO: MixedMethodCall - 20:20 - Cannot call constructor on an unknown class

https://psalm.dev/r/992a7c1602

<?php
enum TranscodeTypeEnum: string
{
    case Case1 = 'case 1';
}

class myClass {}

class TranscodingCreateRequestFactory
{
    private const MAP = [
        'case 1' => myClass::class,
    ];

    public function createObjectByEnumValue(string $value) : object
    {
        if (isset(self::MAP[$value])) {
            $classname = self::MAP[$value];

            return new $classname();
        }

        throw new RuntimeException('Unknown class for ' . $value);
    }
}

Psalm output (using commit 71bb951):

No issues!

[orklah]

Indeed, Psalm seems to have failed silently here

[ygottschalk]

Issue is tracked here: #9373
PR with fix is here: #9393