src/hotspot/share/ci/ciArray.hpp
changeset 47216 71c04702a3d5
parent 22234 da823d78ad65
child 53244 9807daeb47c4
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/hotspot/share/ci/ciArray.hpp	Tue Sep 12 19:03:39 2017 +0200
@@ -0,0 +1,79 @@
+/*
+ * Copyright (c) 1999, 2013, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ *
+ */
+
+#ifndef SHARE_VM_CI_CIARRAY_HPP
+#define SHARE_VM_CI_CIARRAY_HPP
+
+#include "ci/ciArrayKlass.hpp"
+#include "ci/ciConstant.hpp"
+#include "ci/ciObject.hpp"
+#include "oops/arrayOop.hpp"
+#include "oops/objArrayOop.hpp"
+#include "oops/typeArrayOop.hpp"
+
+// ciArray
+//
+// This class represents an arrayOop in the HotSpot virtual
+// machine.
+class ciArray : public ciObject {
+private:
+  int _length;
+
+protected:
+  ciArray(    arrayHandle h_a) : ciObject(h_a), _length(h_a()->length()) {}
+  ciArray( objArrayHandle h_a) : ciObject(h_a), _length(h_a()->length()) {}
+  ciArray(typeArrayHandle h_a) : ciObject(h_a), _length(h_a()->length()) {}
+
+  ciArray(ciKlass* klass, int len) : ciObject(klass), _length(len) {}
+
+  arrayOop get_arrayOop() const { return (arrayOop)get_oop(); }
+
+  const char* type_string() { return "ciArray"; }
+
+  void print_impl(outputStream* st);
+
+  ciConstant element_value_impl(BasicType elembt, arrayOop ary, int index);
+
+public:
+  int length() { return _length; }
+
+  // Convenience routines.
+  ciArrayKlass* array_type()         { return klass()->as_array_klass(); }
+  ciType*       element_type()       { return array_type()->element_type(); }
+  BasicType     element_basic_type() { return element_type()->basic_type(); }
+
+  // Current value of an element.
+  // Returns T_ILLEGAL if there is no element at the given index.
+  ciConstant element_value(int index);
+
+  // Current value of an element at the specified offset.
+  // Returns T_ILLEGAL if there is no element at the given offset.
+  ciConstant element_value_by_offset(intptr_t element_offset);
+
+  // What kind of ciObject is this?
+  bool is_array()        { return true; }
+  bool is_java_object()  { return true; }
+};
+
+#endif // SHARE_VM_CI_CIARRAY_HPP