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Improve json_encode/json_decode functions signatures #9525

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merged 4 commits into from Mar 16, 2023
Merged

Improve json_encode/json_decode functions signatures #9525

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d11c7cd
Add JSON_THROW_ON_ERROR full support
fluffycondor Mar 16, 2023
0c3fa5b
Add depth range
fluffycondor Mar 16, 2023
2c69e3c
Add explanation
fluffycondor Mar 16, 2023
cfe8651
Add tests for falsable return
fluffycondor Mar 16, 2023
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8 changes: 3 additions & 5 deletions stubs/CoreGenericFunctions.phpstub
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Expand Up @@ -1460,6 +1460,7 @@ function ldap_escape(string $value, string $ignore = "", int $flags = 0) : strin
/**
* @psalm-pure
*
* @param int<1, 2147483647> $depth
* @return mixed
* @psalm-flow ($json) -> return
*/
Expand All @@ -1468,11 +1469,8 @@ function json_decode(string $json, ?bool $associative = null, int $depth = 512,
/**
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* @psalm-pure
*
* @return (
* $flags is 4194304
* ? non-empty-string
* : ($flags is 4194560 ? non-empty-string : non-empty-string|false)
* )
* @param int<1, 2147483647> $depth
* @return ($flags is int<4194304, 8388607> ? non-empty-string : non-empty-string|false)
*
* @psalm-flow ($value) -> return
* @psalm-ignore-falsable-return
Expand Down
32 changes: 32 additions & 0 deletions tests/CoreStubsTest.php
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Expand Up @@ -2,11 +2,13 @@

namespace Psalm\Tests;

use Psalm\Tests\Traits\InvalidCodeAnalysisTestTrait;
use Psalm\Tests\Traits\ValidCodeAnalysisTestTrait;

class CoreStubsTest extends TestCase
{
use ValidCodeAnalysisTestTrait;
use InvalidCodeAnalysisTestTrait;

public function providerValidCodeParse(): iterable
{
Expand Down Expand Up @@ -131,5 +133,35 @@ function foo(string $foo): string
'$a===' => 'non-empty-string',
],
];
yield 'json_encode returns a non-empty-string with JSON_THROW_ON_ERROR' => [
'code' => '<?php
$a = json_encode([], JSON_THROW_ON_ERROR | JSON_HEX_TAG);
$b = json_encode([], JSON_THROW_ON_ERROR | JSON_HEX_TAG | JSON_HEX_APOS | JSON_HEX_QUOT | JSON_HEX_AMP | JSON_UNESCAPED_UNICODE);
$c = json_encode([], JSON_THROW_ON_ERROR | JSON_UNESCAPED_SLASHES | JSON_UNESCAPED_UNICODE);
$d = json_encode([], JSON_THROW_ON_ERROR | JSON_PRESERVE_ZERO_FRACTION);
',
'assertions' => [
'$a===' => 'non-empty-string',
'$b===' => 'non-empty-string',
'$c===' => 'non-empty-string',
'$d===' => 'non-empty-string',
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],
];
}

public function providerInvalidCodeParse(): iterable
{
yield 'json_decode invalid depth' => [
'code' => '<?php
json_decode("true", depth: -1);
',
'error_message' => 'InvalidArgument',
];
yield 'json_encode invalid depth' => [
'code' => '<?php
json_encode([], depth: 439877348953739);
',
'error_message' => 'InvalidArgument',
];
}
}