Mercurial > hg > truffle
diff graal/com.oracle.jvmci.meta/src/com/oracle/jvmci/meta/JavaMethod.java @ 21556:48c1ebd24120
renamed com.oracle.graal.api[meta|code] modules to com.oracle.jvmci.[meta|code] (JBS:GRAAL-53)
author | Doug Simon <doug.simon@oracle.com> |
---|---|
date | Wed, 27 May 2015 00:36:16 +0200 |
parents | graal/com.oracle.graal.api.meta/src/com/oracle/graal/api/meta/JavaMethod.java@bf7db79a6e45 |
children |
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--- /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(); + } +}