Use import instead of fully qualified namespaces

bin/generate_levels_doc.php

@@ -1,15 +1,18 @@
 <?php
 
+use Psalm\Config\IssueHandler;
+use Psalm\Issue\CodeIssue;
+
 require_once(dirname(__DIR__) . '/vendor/autoload.php');
 
-$issue_types = \Psalm\Config\IssueHandler::getAllIssueTypes();
+$issue_types = IssueHandler::getAllIssueTypes();
 
 $grouped_issues = [];
 
 foreach ($issue_types as $issue_type) {
     $issue_class = 'Psalm\\Issue\\' . $issue_type;
 
-    if (!class_exists($issue_class) || !is_a($issue_class, \Psalm\Issue\CodeIssue::class, true)) {
+    if (!class_exists($issue_class) || !is_a($issue_class, CodeIssue::class, true)) {
         throw new Exception($issue_class . ' is not a Codeissue');
     }
 

bin/max_used_shortcode.php

@@ -1,9 +1,11 @@
 #!/usr/bin/env php
 <?php
 
+use Psalm\Config\IssueHandler;
+
 require_once(dirname(__DIR__) . '/vendor/autoload.php');
 
-$issue_types = \Psalm\Config\IssueHandler::getAllIssueTypes();
+$issue_types = IssueHandler::getAllIssueTypes();
 
 $shortcodes = array_map(
     function ($issue_type): int {

examples/plugins/composer-based/echo-checker/PluginEntryPoint.php

@@ -1,12 +1,13 @@
 <?php
 namespace Psalm\Example\Plugin\ComposerBased;
 
-use Psalm\Plugin;
+use Psalm\Plugin\PluginEntryPointInterface;
+use Psalm\Plugin\RegistrationInterface;
 use SimpleXMLElement;
 
-class PluginEntryPoint implements Plugin\PluginEntryPointInterface
+class PluginEntryPoint implements PluginEntryPointInterface
 {
-    public function __invoke(Plugin\RegistrationInterface $registration, ?SimpleXMLElement $config = null): void
+    public function __invoke(RegistrationInterface $registration, ?SimpleXMLElement $config = null): void
     {
         require_once __DIR__ . '/EchoChecker.php';
         $registration->registerHooksFromClass(EchoChecker::class);

phpcs.xml

@@ -78,14 +78,22 @@
      -->
     <rule ref="SlevomatCodingStandard.Namespaces.ReferenceUsedNamesOnly">
         <properties>
-            <property name="allowFallbackGlobalConstants" value="false"/>
-            <property name="allowFallbackGlobalFunctions" value="false"/>
-            <property name="allowFullyQualifiedGlobalConstants" value="true"/>
-            <property name="allowFullyQualifiedGlobalFunctions" value="true"/>
-            <property name="allowFullyQualifiedGlobalClasses" value="true"/>
-        </properties>
+            <property name="allowFullyQualifiedExceptions" type="bool" value="false"/>
+            <property name="allowFullyQualifiedGlobalFunctions" type="bool" value="false"/>
+            <property name="allowFullyQualifiedGlobalConstants" type="bool" value="false"/>
+            <property name="allowFullyQualifiedGlobalClasses" type="bool" value="false"/>
+
+			<property name="allowFullyQualifiedNameForCollidingClasses" type="bool" value="false"/>
+			<property name="allowFullyQualifiedNameForCollidingFunctions" type="bool" value="false"/>
+			<property name="allowFullyQualifiedNameForCollidingConstants" type="bool" value="false"/>
+
+			<property name="allowFallbackGlobalFunctions" type="bool" value="false"/>
+			<property name="allowFallbackGlobalConstants" type="bool" value="false"/>
 
-        <exclude name="SlevomatCodingStandard.Namespaces.ReferenceUsedNamesOnly.ReferenceViaFullyQualifiedName"/>
+            <property name="allowPartialUses" type="bool" value="true"/>
+
+			<property name="searchAnnotations" type="bool" value="true"/>
+        </properties>
     </rule>
 
     <!--

psalm-baseline.xml

@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<files psalm-version="dev-master@6941ebfc5318e3782e59bfb85876e5edc1f7cca6">
+<files psalm-version="dev-master@ac230dac5c64b1b4c7f4bd2d067fb7ae6176b6e8">
   <file src="examples/TemplateChecker.php">
     <PossiblyUndefinedIntArrayOffset occurrences="2">
       <code>$comment_block-&gt;tags['variablesfrom'][0]</code>
@@ -255,7 +255,7 @@
   </file>
   <file src="src/Psalm/Internal/Analyzer/Statements/ThrowAnalyzer.php">
     <DeprecatedMethod occurrences="1">
-      <code>\Psalm\Type::getEmpty()</code>
+      <code>Type::getEmpty()</code>
     </DeprecatedMethod>
   </file>
   <file src="src/Psalm/Internal/Analyzer/Statements/UnsetAnalyzer.php">

src/Psalm/CodeLocation.php

@@ -1,8 +1,11 @@
 <?php
 namespace Psalm;
 
+use Exception;
+use LogicException;
 use PhpParser;
 use Psalm\Internal\Analyzer\CommentAnalyzer;
+use UnexpectedValueException;
 
 use function explode;
 use function max;
@@ -197,7 +200,7 @@ private function calculateRealLocation(): void
             }
 
             if (!isset($preview_lines[$i])) {
-                throw new \Exception('Should have offset');
+                throw new Exception('Should have offset');
             }
 
             $key_line = $preview_lines[$i];
@@ -245,7 +248,7 @@ private function calculateRealLocation(): void
                     break;
 
                 default:
-                    throw new \UnexpectedValueException('Unrecognised regex type ' . $this->regex_type);
+                    throw new UnexpectedValueException('Unrecognised regex type ' . $this->regex_type);
             }
 
             $preview_snippet = mb_strcut(
@@ -260,7 +263,7 @@ private function calculateRealLocation(): void
 
             if (preg_match($regex, $preview_snippet, $matches, PREG_OFFSET_CAPTURE)) {
                 if (!isset($matches[1]) || $matches[1][1] === -1) {
-                    throw new \LogicException(
+                    throw new LogicException(
                         "Failed to match anything to 1st capturing group, "
                         . "or regex doesn't contain 1st capturing group, regex type " . $this->regex_type
                     );

src/Psalm/CodeLocation/DocblockTypeLocation.php

@@ -1,10 +1,13 @@
 <?php
 namespace Psalm\CodeLocation;
 
-class DocblockTypeLocation extends \Psalm\CodeLocation
+use Psalm\CodeLocation;
+use Psalm\FileSource;
+
+class DocblockTypeLocation extends CodeLocation
 {
     public function __construct(
-        \Psalm\FileSource $file_source,
+        FileSource $file_source,
         int $file_start,
         int $file_end,
         int $line_number

src/Psalm/CodeLocation/ParseErrorLocation.php

@@ -2,11 +2,12 @@
 namespace Psalm\CodeLocation;
 
 use PhpParser;
+use Psalm\CodeLocation;
 
 use function substr;
 use function substr_count;
 
-class ParseErrorLocation extends \Psalm\CodeLocation
+class ParseErrorLocation extends CodeLocation
 {
     public function __construct(
         PhpParser\Error $error,

src/Psalm/CodeLocation/Raw.php

@@ -1,10 +1,12 @@
 <?php
 namespace Psalm\CodeLocation;
 
+use Psalm\CodeLocation;
+
 use function substr;
 use function substr_count;
 
-class Raw extends \Psalm\CodeLocation
+class Raw extends CodeLocation
 {
     public function __construct(
         string $file_contents,