@json blade parsing error

[maduranma]

Laravel Version

12.20.0

PHP Version

8.4.7

Database Driver & Version

No response

Description

I get an error:
Unclosed '[' on line 93 does not match ')'

On this code:

@json([
    'items' => $helpers['benefit']['getAll']()->map(fn($item) => [
        'icon' => $item->icon,
        'title' => (string)$item->title,
        'description' => (string)$item->description
    ]),
    'translation' => '%:booking.benefits%'
])

This is syntactycally valid and the thing is that just by removing the description line it works:

@json([
    'items' => $helpers['benefit']['getAll']()->map(fn($item) => [
        'icon' => $item->icon,
        'title' => (string)$item->title
    ]),
    'translation' => '%:booking.benefits%'
])

I've tried replacing the description item by just

'a' => 'a'

And it throws error too, I've tried with trailing coma after title and crashes, with and without after description and a lot of things I've tried to thing of, but no lick finding a pattern.

BTW if you are wondering it's mapped instead of ->map->only because I need to cast the objects returned by the model with the __toString magic function, it's a custom object cast I made.

As a temp solution I just use this, which shows the prior is ok and works fine:

{!! json_encode([
    'items' => $helpers['benefit']['getAll']()->map(fn($item) => [
        'icon' => $item->icon,
        'title' => (string)$item->title,
        'description' => (string)$item->description
    ]),
    'translation' => '%:booking.benefits%'
], JSON_UNESCAPED_UNICODE | JSON_UNESCAPED_SLASHES) !!}

Steps To Reproduce

Just mockup the collection I have by placing this before the @json:

@php
    $helpers['benefit']['getAll'] = function () {
        return collect([
            (object)[
                'icon' => 'test',
                'title' => 'test',
                'description' => 'test',
            ]
        ]);
    };
@endphp

[maduranma]

Just to help, here are the cahded views both with and without the description line:

<?php echo json_encode([
'items' => $helpers['benefit']['getAll']()->map(fn($item) => [
    'icon' => $item->icon, 'title' => (string)$item->title, 'description' => (string)$item->description
])) ?>

As you can see here the 'translation' is omitted, it's like cut, like if the string was cut when passing it to the blade directive.

Here is without 'description':

<?php echo json_encode([
    'items' => $helpers['benefit']['getAll']()->map(fn($item) => [
        'icon' => $item->icon, 'title' => (string)$item->title
    ]), 'translation' => '%:booking.benefits%'
]) ?>

[mr-kamlesh-pawar]

A. Fix the Blade Compiler
Modify compileJson() in BladeCompiler.php:

Current logic may fail on nested [] or fn().

Proposed fix: Improve regex/parsing to handle complex structures.

Add Tests:

Extend tests/View/Blade/BladeTest.php with a test case for this scenario.

php

public function testJsonDirectiveWithNestedClosures() {
    $result = $this->compiler->compileString(
        "@json(['items' => collect([(object)['a'=>'b']])->map(fn(\$x) => ['a' => \$x->a])])"
    );
    $this->assertStringContainsString('json_encode', $result);
}

[github-actions]

Thank you for reporting this issue!

As Laravel is an open source project, we rely on the community to help us diagnose and fix issues as it is not possible to research and fix every issue reported to us via GitHub.

If possible, please make a pull request fixing the issue you have described, along with corresponding tests. All pull requests are promptly reviewed by the Laravel team.

Thank you!

[crynobone]

From past PRs (merged and reverted) especially for @php which also has similar limitation it has been almost impossible to solve every usecase using Regex and causing breaking changes to other application.