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//opt/cpanel/ea-wappspector/vendor/slevomat/coding-standard/doc/namespaces.md
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## Namespaces #### SlevomatCodingStandard.Namespaces.AlphabeticallySortedUses 🔧 Sniff checks whether `use` declarations at the top of a file are alphabetically sorted. Follows natural sorting and takes edge cases with special symbols into consideration. The following code snippet is an example of correctly sorted uses: ```php use LogableTrait; use LogAware; use LogFactory; use LoggerInterface; use LogLevel; use LogStandard; ``` Sniff provides the following settings: * `psr12Compatible` (default: `true`): sets the required order to `classes`, `functions` and `constants`. `false` sets the required order to `classes`, `constants` and `functions`. * `caseSensitive`: compare namespaces case sensitively, which makes this order correct: ```php use LogAware; use LogFactory; use LogLevel; use LogStandard; use LogableTrait; use LoggerInterface; ``` #### SlevomatCodingStandard.Namespaces.DisallowGroupUse [Group use declarations](https://wiki.php.net/rfc/group_use_declarations) are ugly, make diffs ugly and this sniff prohibits them. #### SlevomatCodingStandard.Namespaces.FullyQualifiedExceptions 🔧 This sniff reduces confusion in the following code snippet: ```php try { $this->foo(); } catch (Exception $e) { // Is this the general exception all exceptions must extend from? Or Exception from the current namespace? } ``` All references to types named `Exception` or ending with `Exception` must be referenced via a fully qualified name: ```php try { $this->foo(); } catch (\FooCurrentNamespace\Exception $e) { } catch (\Exception $e) { } ``` Sniff provides the following settings: * Exceptions with different names can be configured in `specialExceptionNames` property. * If your codebase uses classes that look like exceptions (because they have `Exception` or `Error` suffixes) but aren't, you can add them to `ignoredNames` property and the sniff won't enforce them to be fully qualified. Classes with `Error` suffix have to be added to ignored only if they are in the root namespace (like `LibXMLError`). #### SlevomatCodingStandard.Namespaces.FullyQualifiedGlobalConstants 🔧 All references to global constants must be referenced via a fully qualified name. Sniff provides the following settings: * `include`: list of global constants that must be referenced via FQN. If not set all constants are considered. * `exclude`: list of global constants that are allowed not to be referenced via FQN. #### SlevomatCodingStandard.Namespaces.FullyQualifiedGlobalFunctions 🔧 All references to global functions must be referenced via a fully qualified name. Sniff provides the following settings: * `include`: list of global functions that must be referenced via FQN. If not set all functions are considered. * `includeSpecialFunctions`: include complete list of PHP internal functions that could be optimized when referenced via FQN. * `exclude`: list of global functions that are allowed not to be referenced via FQN. #### SlevomatCodingStandard.Namespaces.FullyQualifiedClassNameInAnnotation 🔧 Enforces fully qualified names of classes and interfaces in phpDocs - in annotations. This results in unambiguous phpDocs. Sniff provides the following settings: * `ignoredAnnotationNames`: case-sensitive list of annotation names that the sniff should ignore. Useful for custom annotation names like `@apiParam` #### SlevomatCodingStandard.Namespaces.MultipleUsesPerLine Prohibits multiple uses separated by commas: ```php use Foo, Bar; ``` #### SlevomatCodingStandard.Namespaces.NamespaceDeclaration 🔧 Enforces one space after `namespace`, disallows content between namespace name and semicolon and disallows use of bracketed syntax. #### SlevomatCodingStandard.Namespaces.NamespaceSpacing 🔧 Enforces configurable number of lines before and after `namespace`. Sniff provides the following settings: * `linesCountBeforeNamespace`: allows to configure the number of lines before `namespace`. * `linesCountAfterNamespace`: allows to configure the number of lines after `namespace`. #### SlevomatCodingStandard.Namespaces.RequireOneNamespaceInFile Requires only one namespace in a file. #### SlevomatCodingStandard.Namespaces.ReferenceUsedNamesOnly 🔧 Sniff provides the following settings: * `searchAnnotations` (default: `false`): enables searching for mentions in annotations. * `namespacesRequiredToUse`: if not set, all namespaces are required to be used. When set, only mentioned namespaces are required to be used. Useful in tandem with UseOnlyWhitelistedNamespaces sniff. * `allowFullyQualifiedExceptions`, `specialExceptionNames` & `ignoredNames`: allows fully qualified exceptions. Useful in tandem with FullyQualifiedExceptions sniff. * `allowFullyQualifiedNameForCollidingClasses`: allow fully qualified name for a class with a colliding use statement. * `allowFullyQualifiedNameForCollidingFunctions`: allow fully qualified name for a function with a colliding use statement. * `allowFullyQualifiedNameForCollidingConstants`: allow fully qualified name for a constant with a colliding use statement. * `allowFullyQualifiedGlobalClasses`: allows using fully qualified classes from global space (i.e. `\DateTimeImmutable`). * `allowFullyQualifiedGlobalFunctions`: allows using fully qualified functions from global space (i.e. `\phpversion()`). * `allowFullyQualifiedGlobalConstants`: allows using fully qualified constants from global space (i.e. `\PHP_VERSION`). * `allowFallbackGlobalFunctions`: allows using global functions via fallback name without `use` (i.e. `phpversion()`). * `allowFallbackGlobalConstants`: allows using global constants via fallback name without `use` (i.e. `PHP_VERSION`). * `allowPartialUses`: allows using and referencing whole namespaces. * `allowWhenNoNamespace` (default: `true`): force even when there's no namespace in the file. #### SlevomatCodingStandard.Namespaces.UseDoesNotStartWithBackslash 🔧 Disallows leading backslash in use statement: ```php use \Foo\Bar; ``` #### SlevomatCodingStandard.Namespaces.UseFromSameNamespace 🔧 Sniff prohibits uses from the same namespace: ```php namespace Foo; use Foo\Bar; ``` #### SlevomatCodingStandard.Namespaces.UseSpacing 🔧 Enforces configurable number of lines before first `use`, after last `use` and between two different types of `use` (eg. between `use function` and `use const`). Also enforces zero number of lines between same types of `use`. Sniff provides the following settings: * `linesCountBeforeFirstUse`: allows to configure the number of lines before first `use`. * `linesCountBetweenUseTypes`: allows to configure the number of lines between two different types of `use`. * `linesCountAfterLastUse`: allows to configure the number of lines after last `use`. #### SlevomatCodingStandard.Namespaces.UseOnlyWhitelistedNamespaces Sniff disallows uses of other than configured namespaces. Sniff provides the following settings: * `namespacesRequiredToUse`: namespaces in this array are the only ones allowed to be used. E.g. root project namespace. * `allowUseFromRootNamespace`: also allow using top-level namespace: ```php use DateTimeImmutable; ``` #### SlevomatCodingStandard.Namespaces.UselessAlias 🔧 Looks for `use` alias that is same as unqualified name. #### SlevomatCodingStandard.Namespaces.UnusedUses 🔧 Looks for unused imports from other namespaces. Sniff provides the following settings: * `searchAnnotations` (default: `false`): enables searching for class names in annotations. * `ignoredAnnotationNames`: case-sensitive list of annotation names that the sniff should ignore (only the name is ignored, annotation content is still searched). Useful for name collisions like `@testCase` annotation and `TestCase` class. * `ignoredAnnotations`: case-sensitive list of annotation names that the sniff ignore completely (both name and content are ignored). Useful for name collisions like `@group Cache` annotation and `Cache` class.
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