8000 [DependencyInjection] Yaml: check if $tags is an array before using it by dunglas · Pull Request #21348 · symfony/symfony · GitHub
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[DependencyInjection] Yaml: check if $tags is an array before using it #21348

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[DependencyInjection] Yaml: check if $tags is an array before using it #21348

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a017641
[DependencyInjection] Yaml: check if $tags is an array before using it
dunglas Jan 19, 2017
48dd4f9
Add test and use ternary operator
dunglas Jan 20, 2017
dc18fbb
Fix tests
dunglas Jan 20, 2017
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[DependencyInjection] Yaml: check if $tags is an array before using it
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@dunglas
dunglas committed Jan 19, 2017
commit a017641e06eccef0581d9942d2f6f46ee048c5ca
48 changes: 25 additions & 23 deletions src/Symfony/Component/DependencyInjection/Loader/YamlFileLoader.php
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Original file line number Diff line number Diff line change
Expand Up @@ -331,7 +331,15 @@ private function parseDefinition($id, $service, $file, array $defaults)
}
}

$tags = isset($service['tags']) ? $service['tags'] : array();
if (isset($service['tags'])) {
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I think this line was fine, just add if (!is_array($tags)) { on the next line

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shouldn't this PR be applied on a lower branch btw?

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Why not but it adds 1 useless check when $service['tags'] is not set.

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@dunglas dunglas Jan 19, 2017 •
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No the branch is correct (this "bug" was introduced by _defaults in #21071).

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@nicolas-grekas nicolas-grekas Jan 19, 2017 •
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it adds 1 useless check

yes, but we don't care, readibility is more important here (thinking about the complexity of nested if/else blocks) IMHO

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I usually prefer if/else than the ternary operator but it's probably because I need glasses to read on a screen.
I'll change that.

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done

$tags = $service['tags'];

if (!is_array($tags)) {
throw new InvalidArgumentException(sprintf('Parameter "tags" must be an array for service "%s" in %s. Check your YAML syntax.', $id, $file));
}
} else {
$tags = array();
}

if (!isset($defaults['tags'])) {
// no-op
Expand All @@ -343,34 +351,28 @@ private function parseDefinition($id, $service, $file, array $defaults)
$tags = array_merge($tags, $defaults['tags']);
}

if (null !== $tags) {
if (!is_array($tags)) {
throw new InvalidArgumentException(sprintf('Parameter "tags" must be an array for service "%s" in %s. Check your YAML syntax.', $id, $file));
foreach ($tags as $tag) {
A5B3 if (!is_array($tag)) {
$tag = array('name' => $tag);
}

foreach ($tags as $tag) {
if (!is_array($tag)) {
$tag = array('name' => $tag);
}

if (!isset($tag['name'])) {
throw new InvalidArgumentException(sprintf('A "tags" entry is missing a "name" key for service "%s" in %s.', $id, $file));
}
$name = $tag['name'];
unset($tag['name']);
if (!isset($tag['name'])) {
throw new InvalidArgumentException(sprintf('A "tags" entry is missing a "name" key for service "%s" in %s.', $id, $file));
}
$name = $tag['name'];
unset($tag['name']);

if (!is_string($name) || '' === $name) {
throw new InvalidArgumentException(sprintf('The tag name for service "%s" in %s must be a non-empty string.', $id, $file));
}
if (!is_string($name) || '' === $name) {
throw new InvalidArgumentException(sprintf('The tag name for service "%s" in %s must be a non-empty string.', $id, $file));
}

foreach ($tag as $attribute => $value) {
if (!is_scalar($value) && null !== $value) {
throw new InvalidArgumentException(sprintf('A "tags" attribute must be of a scalar-type for service "%s", tag "%s", attribute "%s" in %s. Check your YAML syntax.', $id, $name, $attribute, $file));
}
foreach ($tag as $attribute => $value) {
if (!is_scalar($value) && null !== $value) {
throw new InvalidArgumentException(sprintf('A "tags" attribute must be of a scalar-type for service "%s", tag "%s", attribute "%s" in %s. Check your YAML syntax.', $id, $name, $attribute, $file));
}

$definition->addTag($name, $tag);
}

$definition->addTag($name, $tag);
}

if (isset($service['decorates'])) {
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