PHP 8.3 | Generic/UpperCaseConstantName: add support for typed constants

This sniff is specifically targeted at constant names.

PHP 8.3 introduces typed constants. This means that the sniff now needs to jump over a potentially declared constant type to get at the constant name.

Fixed now.

Includes tests.

Fixes squizlabs/PHP_CodeSniffer 3927
Closes squizlabs/PHP_CodeSniffer 3936

src/Standards/Generic/Sniffs/NamingConventions/UpperCaseConstantNameSniff.php

@@ -46,8 +46,16 @@ public function process(File $phpcsFile, $stackPtr)
         $tokens = $phpcsFile->getTokens();
 
         if ($tokens[$stackPtr]['code'] === T_CONST) {
-            // This is a class constant.
-            $constant = $phpcsFile->findNext(Tokens::$emptyTokens, ($stackPtr + 1), null, true);
+            // This is a constant declared with the "const" keyword.
+            // This may be an OO constant, in which case it could be typed, so we need to
+            // jump over a potential type to get to the name.
+            $assignmentOperator = $phpcsFile->findNext([T_EQUAL, T_SEMICOLON], ($stackPtr + 1));
+            if ($assignmentOperator === false || $tokens[$assignmentOperator]['code'] !== T_EQUAL) {
+                // Parse error/live coding. Nothing to do. Rest of loop is moot.
+                return;
+            }
+
+            $constant = $phpcsFile->findPrevious(Tokens::$emptyTokens, ($assignmentOperator - 1), ($stackPtr + 1), true);
             if ($constant === false) {
                 return;
             }

src/Standards/Generic/Tests/NamingConventions/UpperCaseConstantNameUnitTest.inc

@@ -31,3 +31,13 @@ class ClassConstBowOutTest {
 }
 
 $foo->getBar()?->define('foo');
+
+// PHP 8.3 introduces typed constants.
+class TypedConstants {
+    const MISSING_VALUE; // Parse error.
+    const MyClass MYCONST = new MyClass;
+    const int VALID_NAME = 0;
+    const INT invalid_name = 0;
+    const FALSE false = false; // Yes, false can be used as a constant name, don't ask.
+    const array ARRAY = array(); // Same goes for array.
+}

src/Standards/Generic/Tests/NamingConventions/UpperCaseConstantNameUnitTest.php

@@ -38,6 +38,8 @@ public function getErrorList()
             19 => 1,
             28 => 1,
             30 => 1,
+            40 => 1,
+            41 => 1,
         ];
 
     }//end getErrorList()