Refactor Context::load()

Signed-off-by: Kamil Tekiela <tekiela246@gmail.com>

Author: kamil-tekiela

psalm-baseline.xml

@@ -546,11 +546,6 @@
       <code>ContextMySql50600</code>
     </UnusedClass>
   </file>
-  <file src="src/Contexts/ContextMySql50700.php">
-    <UnusedClass>
-      <code>ContextMySql50700</code>
-    </UnusedClass>
-  </file>
   <file src="src/Contexts/ContextMySql80000.php">
     <UnusedClass>
       <code>ContextMySql80000</code>

src/Context.php

@@ -4,6 +4,8 @@
 
 namespace PhpMyAdmin\SqlParser;
 
+use PhpMyAdmin\SqlParser\Contexts\ContextMySql50700;
+
 use function class_exists;
 use function explode;
 use function in_array;
@@ -43,21 +45,16 @@ abstract class Context
      */
     public const OPERATOR_MAX_LENGTH = 4;
 
-    /**
-     * The name of the default content.
-     */
-    public static string $defaultContext = '\\PhpMyAdmin\\SqlParser\\Contexts\\ContextMySql50700';
-
     /**
      * The name of the loaded context.
      */
-    public static string $loadedContext = '\\PhpMyAdmin\\SqlParser\\Contexts\\ContextMySql50700';
+    public static string $loadedContext = ContextMySql50700::class;
 
     /**
      * The prefix concatenated to the context name when an incomplete class name
      * is specified.
      */
-    public static string $contextPrefix = '\\PhpMyAdmin\\SqlParser\\Contexts\\Context';
+    public static string $contextPrefix = 'PhpMyAdmin\\SqlParser\\Contexts\\Context';
 
     /**
      * List of keywords.
@@ -521,19 +518,19 @@ public static function isSeparator(string $string): bool
      */
     public static function load(string $context = ''): bool
     {
-        if (empty($context)) {
-            $context = self::$defaultContext;
+        if ($context === '') {
+            $context = ContextMySql50700::class;
         }
 
-        if ($context[0] !== '\\') {
+        if (! class_exists($context)) {
+            if (! class_exists(self::$contextPrefix . $context)) {
+                return false;
+            }
+
             // Short context name (must be formatted into class name).
             $context = self::$contextPrefix . $context;
         }
 
-        if (! class_exists($context)) {
-            return false;
-        }
-
         self::$loadedContext = $context;
         self::$keywords = $context::$keywords;
 

src/Tools/TestGenerator.php

@@ -169,7 +169,7 @@ public static function build(
             Context::load('MariaDb' . $mariaDbVersion);
         } else {
             // Load the default context to be sure there is no side effects
-            Context::load('');
+            Context::load();
         }
 
         $test = static::generate($query, $type);

tests/Lexer/ContextTest.php

@@ -20,13 +20,12 @@ public static function tearDownAfterClass(): void
     public function testLoad(): void
     {
         // Default context is 5.7.0.
-        $this->assertEquals('\\PhpMyAdmin\\SqlParser\\Contexts\\ContextMySql50700', Context::$loadedContext);
+        $this->assertEquals('PhpMyAdmin\\SqlParser\\Contexts\\ContextMySql50700', Context::$loadedContext);
         $this->assertArrayHasKey('STORED', Context::$keywords);
         $this->assertArrayNotHasKey('AUTHORS', Context::$keywords);
 
         // Restoring context.
-        Context::load('');
-        $this->assertEquals('\\PhpMyAdmin\\SqlParser\\Contexts\\ContextMySql50700', Context::$defaultContext);
+        Context::load();
         $this->assertArrayHasKey('STORED', Context::$keywords);
         $this->assertArrayNotHasKey('AUTHORS', Context::$keywords);
     }
@@ -39,12 +38,12 @@ public function testLoadClosest(string $context, string|null $expected): void
     {
         $this->assertEquals($expected, Context::loadClosest($context));
         if ($expected !== null) {
-            $this->assertEquals('\\PhpMyAdmin\\SqlParser\\Contexts\\Context' . $expected, Context::$loadedContext);
+            $this->assertEquals('PhpMyAdmin\\SqlParser\\Contexts\\Context' . $expected, Context::$loadedContext);
             $this->assertTrue(class_exists(Context::$loadedContext));
         }
 
         // Restoring context.
-        Context::load('');
+        Context::load();
     }
 
     /**
@@ -89,10 +88,10 @@ public static function contextLoadingProvider(): array
     public function testLoadAll(string $context): void
     {
         Context::load($context);
-        $this->assertEquals('\\PhpMyAdmin\\SqlParser\\Contexts\\Context' . $context, Context::$loadedContext);
+        $this->assertEquals('PhpMyAdmin\\SqlParser\\Contexts\\Context' . $context, Context::$loadedContext);
 
         // Restoring context.
-        Context::load('');
+        Context::load();
     }
 
     /** @return string[][] */