--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/graal/com.oracle.jvmci.meta/src/com/oracle/jvmci/meta/JavaMethod.java	Wed May 27 00:36:16 2015 +0200
@@ -0,0 +1,141 @@
+/*
+ * Copyright (c) 2009, 2012, 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.
+ */
+package com.oracle.jvmci.meta;
+
+import java.util.*;
+
+/**
+ * Represents a reference to a Java method, either resolved or unresolved. Methods, like fields and
+ * types, are resolved through {@link ConstantPool constant pools}.
+ */
+public interface JavaMethod extends TrustedInterface {
+
+    /**
+     * Returns the name of this method.
+     */
+    String getName();
+
+    /**
+     * Returns the {@link JavaType} object representing the class or interface that declares this
+     * method.
+     */
+    JavaType getDeclaringClass();
+
+    /**
+     * Returns the signature of this method.
+     */
+    Signature getSignature();
+
+    /**
+     * Gets a string for this method formatted according to a given format specification. A format
+     * specification is composed of characters that are to be copied verbatim to the result and
+     * specifiers that denote an attribute of this method that is to be copied to the result. A
+     * specifier is a single character preceded by a '%' character. The accepted specifiers and the
+     * method attributes they denote are described below:
+     *
+     * <pre>
+     *     Specifier | Description                                          | Example(s)
+     *     ----------+------------------------------------------------------------------------------------------
+     *     'R'       | Qualified return type                                | "int" "java.lang.String"
+     *     'r'       | Unqualified return type                              | "int" "String"
+     *     'H'       | Qualified holder                                     | "java.util.Map.Entry"
+     *     'h'       | Unqualified holder                                   | "Entry"
+     *     'n'       | Method name                                          | "add"
+     *     'P'       | Qualified parameter types, separated by ', '         | "int, java.lang.String"
+     *     'p'       | Unqualified parameter types, separated by ', '       | "int, String"
+     *     'f'       | Indicator if method is unresolved, static or virtual | "unresolved" "static" "virtual"
+     *     '%'       | A '%' character                                      | "%"
+     * </pre>
+     *
+     * @param format a format specification
+     * @return the result of formatting this method according to {@code format}
+     * @throws IllegalFormatException if an illegal specifier is encountered in {@code format}
+     */
+    default String format(String format) throws IllegalFormatException {
+        StringBuilder sb = new StringBuilder();
+        int index = 0;
+        Signature sig = null;
+        while (index < format.length()) {
+            char ch = format.charAt(index++);
+            if (ch == '%') {
+                if (index >= format.length()) {
+                    throw new UnknownFormatConversionException("An unquoted '%' character cannot terminate a method format specification");
+                }
+                char specifier = format.charAt(index++);
+                boolean qualified = false;
+                switch (specifier) {
+                    case 'R':
+                        qualified = true;
+                        // fall through
+                    case 'r': {
+                        if (sig == null) {
+                            sig = getSignature();
+                        }
+                        sb.append(sig.getReturnType(null).toJavaName(qualified));
+                        break;
+                    }
+                    case 'H':
+                        qualified = true;
+                        // fall through
+                    case 'h': {
+                        sb.append(getDeclaringClass().toJavaName(qualified));
+                        break;
+                    }
+                    case 'n': {
+                        sb.append(getName());
+                        break;
+                    }
+                    case 'P':
+                        qualified = true;
+                        // fall through
+                    case 'p': {
+                        if (sig == null) {
+                            sig = getSignature();
+                        }
+                        for (int i = 0; i < sig.getParameterCount(false); i++) {
+                            if (i != 0) {
+                                sb.append(", ");
+                            }
+                            sb.append(sig.getParameterType(i, null).toJavaName(qualified));
+                        }
+                        break;
+                    }
+                    case 'f': {
+                        sb.append(!(this instanceof ResolvedJavaMethod) ? "unresolved" : ((ResolvedJavaMethod) this).isStatic() ? "static" : "virtual");
+                        break;
+                    }
+                    case '%': {
+                        sb.append('%');
+                        break;
+                    }
+                    default: {
+                        throw new UnknownFormatConversionException(String.valueOf(specifier));
+                    }
+                }
+            } else {
+                sb.append(ch);
+            }
+        }
+        return sb.toString();
+    }
+}