fix(stub): 修复 self/parent/static 类常量引用解析失败的问题

src/gen_stub.php

@@ -2368,20 +2368,23 @@ class EvaluatedValue
                         return ltrim($className, '\\');
                     }
                     $class = getClassConstFetchClassName($expr);
-                    if ($class === 'self') {
-                        $constName = ClassInfo::$currentClass . "::" . $constName;
-                        if (isset($allConstInfos[$constName])) {
-                            return $allConstInfos[$constName]->getValue($allConstInfos)->value;
-                        } else {
-                            return normalizeConstExprValue(
-                                getTranslator()->getClassConstValue($expr, ClassInfo::$currentClass, $constName)
-                            );
-                        }
-                    } else {
-                        return normalizeConstExprValue(
-                            getTranslator()->getClassConstValue($expr, $class, $constName, ClassInfo::$currentClass)
-                        );
+                    // Resolve the special class-name keywords to concrete classes.
+                    // Previously `self` was passed as both the class and a
+                    // `ClassName::` name prefix (yielding `B::B::A`), and `parent` /
+                    // `static` were passed verbatim (yielding `parent::A`), so the
+                    // constant lookup always failed.
+                    if (strcasecmp($class, 'self') === 0 || strcasecmp($class, 'static') === 0) {
+                        $class = ClassInfo::$currentClass;
+                    } elseif (strcasecmp($class, 'parent') === 0) {
+                        $class = getTranslator()->getParentClass(ClassInfo::$currentClass);
+                    }
+                    $fqcnName = ltrim($class, '\\') . "::" . $constName;
+                    if (isset($allConstInfos[$fqcnName])) {
+                        return $allConstInfos[$fqcnName]->getValue($allConstInfos)->value;
                     }
+                    return normalizeConstExprValue(
+                        getTranslator()->getClassConstValue($expr, $class, $constName, ClassInfo::$currentClass)
+                    );
                 } else {
                     $constName = $expr->name->__toString();
                     if (strtolower($constName) === "unknown") {

tests/compiler/self-class/003.phpt

@@ -0,0 +1,41 @@
+--TEST--
+Class constant referenced via self:: / parent:: / ClassName:: as a property default value
+--FILE--
+<?php
+
+declare(strict_types=1);
+
+class A
+{
+    const A = 1;
+    const B = 2;
+}
+
+class B extends A
+{
+    // self:: referencing an inherited constant.
+    // Bug: self::A was incorrectly resolved as B::B::A and the lookup failed.
+    public $a = self::A;
+    // self:: referencing a constant declared in the same class.
+    const LOCAL = 10;
+    public $local = self::LOCAL;
+    // parent:: referencing a parent constant.
+    public $b = parent::A;
+    // explicit class name.
+    public $c = A::B;
+}
+
+function main()
+{
+    $test = new B;
+    var_dump($test->a);
+    var_dump($test->local);
+    var_dump($test->b);
+    var_dump($test->c);
+}
+?>
+--EXPECT--
+int(1)
+int(10)
+int(1)
+int(2)