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[Yaml] Add compact nested mapping support to Dumper #59315

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Merged
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Jan 2, 2025
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[Yaml] Add compact nested mapping support to Dumper #59315

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[Yaml] Add compact nested mapping support to Dumper
  • Loading branch information
@fabpot
gr8b authored and fabpot committed Jan 2, 2025
commit f67e6366100482bd068b26fd34f8ea1219c2f0c0
5 changes: 5 additions & 0 deletions src/Symfony/Component/Yaml/CHANGELOG.md
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@@ -1,6 +1,11 @@
CHANGELOG
=========

7.3
---

* Add compact nested mapping support by using the `Yaml::DUMP_COMPACT_NESTED_MAPPING` flag

7.2
---

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5 changes: 3 additions & 2 deletions src/Symfony/Component/Yaml/Dumper.php
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Expand Up @@ -65,6 +65,7 @@ private function doDump(mixed $input, int $inline = 0, int $indent = 0, int $fla
$output .= $this->dumpTaggedValue($input, $inline, $indent, $flags, $prefix, $nestingLevel);
} else {
$dumpAsMap = Inline::isHash($input);
$compactNestedMapping = Yaml::DUMP_COMPACT_NESTED_MAPPING & $flags && !$dumpAsMap;

foreach ($input as $key => $value) {
if ('' !== $output && "\n" !== $output[-1]) {
Expand Down Expand Up @@ -134,8 +135,8 @@ private function doDump(mixed $input, int $inline = 0, int $indent = 0, int $fla
$output .= \sprintf('%s%s%s%s',
$prefix,
$dumpAsMap ? Inline::dump($key, $flags).':' : '-',
$willBeInlined ? ' ' : "\n",
$this->doDump($value, $inline - 1, $willBeInlined ? 0 : $indent + $this->indentation, $flags, $nestingLevel + 1)
$willBeInlined || ($compactNestedMapping && \is_array($value)) ? ' ' : "\n",
$compactNestedMapping && \is_array($value) ? substr($this->doDump($value, $inline - 1, $indent + 2, $flags, $nestingLevel + 1), $indent + 2) : $this->doDump($value, $inline - 1, $willBeInlined ? 0 : $indent + $this->indentation, $flags, $nestingLevel + 1)
).($willBeInlined ? "\n" : '');
}
}
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91 changes: 91 additions & 0 deletions src/Symfony/Component/Yaml/Tests/DumperTest.php
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Expand Up @@ -1061,6 +1061,97 @@ public static function getDateTimeData()
];
}

public static function getDumpCompactNestedMapping()
{
$data = [
'planets' => [
[
'name' => 'Mercury',
'distance' => 57910000,
'properties' => [
['name' => 'size', 'value' => 4879],
['name' => 'moons', 'value' => 0],
[[[]]],
],
],
[
'name' => 'Jupiter',
'distance' => 778500000,
'properties' => [
['name' => 'size', 'value' => 139820],
['name' => 'moons', 'value' => 79],
[[]],
],
],
],
];
$expected = <<<YAML
planets:
\t- name: Mercury
\t distance: 57910000
\t properties:
\t\t - name: size
\t\t value: 4879
\t\t - name: moons
\t\t value: 0
\t\t - - - { }
\t- name: Jupiter
\t distance: 778500000
\t properties:
\t\t - name: size
\t\t value: 139820
\t\t - name: moons
\t\t value: 79
\t\t - - { }

YAML;

for ($indentation = 1; $indentation < 5; ++$indentation) {
yield \sprintf('Compact nested mapping %d', $indentation) => [
$data,
strtr($expected, ["\t" => str_repeat(' ', $indentation)]),
$indentation,
];
}

$indentation = 2;
$inline = 4;
$expected = <<<YAML
planets:
- name: Mercury
distance: 57910000
properties:
- { name: size, value: 4879 }
- { name: moons, value: 0 }
- [[{ }]]
- name: Jupiter
distance: 778500000
properties:
- { name: size, value: 139820 }
- { name: moons, value: 79 }
- [{ }]

YAML;

yield \sprintf('Compact nested mapping %d and inline %d', $indentation, $inline) => [
$data,
$expected,
$indentation,
$inline,
];
}

/**
* @dataProvider getDumpCompactNestedMapping
*/
public function testDumpCompactNestedMapping(array $data, string $expected, int $indentation, int $inline = 10)
{
$dumper = new Dumper($indentation);
$actual = $dumper->dump($data, $inline, 0, Yaml::DUMP_COMPACT_NESTED_MAPPING);
$this->assertSame($expected, $actual);
$this->assertSameData($data, $this->parser->parse($actual));
}

private function assertSameData($expected, $actual)
{
$this->assertEquals($expected, $actual);
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1 change: 1 addition & 0 deletions src/Symfony/Component/Yaml/Yaml.php
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Expand Up @@ -36,6 +36,7 @@ class Yaml
public const DUMP_NULL_AS_TILDE = 2048;
public const DUMP_NUMERIC_KEY_AS_STRING = 4096;
public const DUMP_NULL_AS_EMPTY = 8192;
public const DUMP_COMPACT_NESTED_MAPPING = 16384;

/**
* Parses a YAML file into a PHP value.
Expand Down