--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/src/share/vm/ci/ciSignature.cpp	Sat Dec 01 00:00:00 2007 +0000
@@ -0,0 +1,110 @@
+/*
+ * Copyright 1999-2007 Sun Microsystems, Inc.  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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ *
+ */
+
+#include "incls/_precompiled.incl"
+#include "incls/_ciSignature.cpp.incl"
+
+// ciSignature
+//
+// This class represents the signature of a method.
+
+// ------------------------------------------------------------------
+// ciSignature::ciSignature
+ciSignature::ciSignature(ciKlass* accessing_klass, ciSymbol* symbol) {
+  ASSERT_IN_VM;
+  EXCEPTION_CONTEXT;
+  _accessing_klass = accessing_klass;
+  _symbol = symbol;
+
+  ciEnv* env = CURRENT_ENV;
+  Arena* arena = env->arena();
+  _types = new (arena) GrowableArray<ciType*>(arena, 8, 0, NULL);
+
+  int size = 0;
+  int count = 0;
+  symbolHandle sh (THREAD, symbol->get_symbolOop());
+  SignatureStream ss(sh);
+  for (; ; ss.next()) {
+    // Process one element of the signature
+    ciType* type;
+    if (!ss.is_object()) {
+      type = ciType::make(ss.type());
+    } else {
+      symbolOop name = ss.as_symbol(THREAD);
+      if (HAS_PENDING_EXCEPTION) {
+        type = ss.is_array() ? (ciType*)ciEnv::unloaded_ciobjarrayklass()
+          : (ciType*)ciEnv::unloaded_ciinstance_klass();
+        env->record_out_of_memory_failure();
+        CLEAR_PENDING_EXCEPTION;
+      } else {
+        ciSymbol* klass_name = env->get_object(name)->as_symbol();
+        type = env->get_klass_by_name_impl(_accessing_klass, klass_name, false);
+      }
+    }
+    _types->append(type);
+    if (ss.at_return_type()) {
+      // Done processing the return type; do not add it into the count.
+      break;
+    }
+    size += type->size();
+    count++;
+  }
+  _size = size;
+  _count = count;
+}
+
+// ------------------------------------------------------------------
+// ciSignature::return_ciType
+//
+// What is the return type of this signature?
+ciType* ciSignature::return_type() const {
+  return _types->at(_count);
+}
+
+// ------------------------------------------------------------------
+// ciSignature::ciType_at
+//
+// What is the type of the index'th element of this
+// signature?
+ciType* ciSignature::type_at(int index) const {
+  assert(index < _count, "out of bounds");
+  // The first _klasses element holds the return klass.
+  return _types->at(index);
+}
+
+// ------------------------------------------------------------------
+// ciSignature::print_signature
+void ciSignature::print_signature() {
+  _symbol->print_symbol();
+}
+
+// ------------------------------------------------------------------
+// ciSignature::print
+void ciSignature::print() {
+  tty->print("<ciSignature symbol=");
+  print_signature();
+ tty->print(" accessing_klass=");
+  _accessing_klass->print();
+  tty->print(" address=0x%x>", (address)this);
+}