Add check cast

m3m0r7 · m3m0r7 · commit 416ce847d810 · 2019-05-14T22:31:53.000+09:00
diff --git a/src/Kernel/Mnemonics/_checkcast.php b/src/Kernel/Mnemonics/_checkcast.php
@@ -1,7 +1,9 @@
 <?php
 namespace PHPJava\Kernel\Mnemonics;
 
-use PHPJava\Exceptions\NotImplementedException;
+use PHPJava\Packages\java\lang\ClassCastException;
+use PHPJava\Utilities\Formatter;
+use PHPJava\Utilities\TypeResolver;
 
 final class _checkcast implements OperationInterface
 {
@@ -10,6 +12,28 @@ final class _checkcast implements OperationInterface
 
     public function execute(): void
     {
-        throw new NotImplementedException(__CLASS__);
+        $cp = $this->getConstantPool();
+        $index = $this->readUnsignedShort();
+        $objectref = $this->popFromOperandStack();
+
+        if ($objectref === null) {
+            return;
+        }
+
+        $castTo = $cp[$cp[$index]->getClassIndex()]->getString();
+
+        $fromObjectClass = Formatter::convertPHPNamespacesToJava(get_class($objectref));
+
+        [$classes, $interfaces] = TypeResolver::getExtendedClasses(
+            'L' . str_replace('/', '.', $castTo)
+        )[0] ?? [[], []];
+
+        if (in_array($fromObjectClass, $classes, true)) {
+            return;
+        }
+
+        throw new ClassCastException(
+            'class \\' . get_class($objectref) . ' cannot be cast to class ' . Formatter::convertJavaNamespaceToPHP($castTo)[1]
+        );
     }
 }
diff --git a/src/Kernel/Mnemonics/_ldc.php b/src/Kernel/Mnemonics/_ldc.php
@@ -5,6 +5,7 @@
 use PHPJava\Kernel\Structures\_Integer;
 use PHPJava\Kernel\Structures\_String;
 use PHPJava\Kernel\Structures\_Utf8;
+use PHPJava\Kernel\Types\_Int;
 
 final class _ldc implements OperationInterface
 {
@@ -14,7 +15,6 @@ final class _ldc implements OperationInterface
     public function execute(): void
     {
         $cpInfo = $this->getConstantPool();
-
         $data = $cpInfo[$this->readUnsignedByte()];
 
         $value = null;
@@ -25,8 +25,10 @@ public function execute(): void
             if ($value instanceof _Utf8) {
                 $value = $value->getStringObject();
             }
-        } elseif (($data instanceof _Integer) || ($data instanceof _Float)) {
-            $value = $data->getBytes();
+        } elseif (($data instanceof _Integer)) {
+            $value = _Int::get($data->getBytes());
+        } elseif ($data instanceof _Float) {
+            $value = _Float::get($data->getBytes());
         } else {
             $value = $cpInfo[$data->getStringIndex()];
         }
diff --git a/src/Kernel/Mnemonics/_ldc2_w.php b/src/Kernel/Mnemonics/_ldc2_w.php
@@ -1,6 +1,9 @@
 <?php
 namespace PHPJava\Kernel\Mnemonics;
 
+use PHPJava\Kernel\Types\_Double;
+use PHPJava\Kernel\Types\_Long;
+
 final class _ldc2_w implements OperationInterface
 {
     use \PHPJava\Kernel\Core\Accumulator;
@@ -9,9 +12,15 @@ final class _ldc2_w implements OperationInterface
     public function execute(): void
     {
         $cpInfo = $this->getConstantPool();
-
         $data = $cpInfo[$this->readUnsignedShort()];
 
-        $this->pushToOperandStack($data->getBytes());
+        $value = null;
+        if (($data instanceof \PHPJava\Kernel\Structures\_Long)) {
+            $value = _Long::get($data->getBytes());
+        } elseif ($data instanceof \PHPJava\Kernel\Structures\_Double) {
+            $value = _Double::get($data->getBytes());
+        }
+
+        $this->pushToOperandStack($value);
     }
 }
