Mercurial > hg > graal-compiler
view graal/com.oracle.jvmci.meta/src/com/oracle/jvmci/meta/JavaField.java @ 21591:6c5327245831
LinearScan: fix intervals context.
author | Josef Eisl <josef.eisl@jku.at> |
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date | Fri, 29 May 2015 10:59:03 +0200 |
parents | 48c1ebd24120 |
children |
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/* * 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 field, either resolved or unresolved fields. Fields, like * methods and types, are resolved through {@link ConstantPool constant pools}. */ public interface JavaField extends TrustedInterface { /** * Returns the name of this field. */ String getName(); /** * Returns a {@link JavaType} object that identifies the declared type for this field. */ JavaType getType(); /** * Returns the kind of this field. This is the same as calling {@link #getType}. * {@link JavaType#getKind getKind}. */ default Kind getKind() { return getType().getKind(); } /** * Returns the {@link JavaType} object representing the class or interface that declares this * field. */ JavaType getDeclaringClass(); /** * Gets a string for this field 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 field that is to be copied to the result. A * specifier is a single character preceded by a '%' character. The accepted specifiers and the * field attributes they denote are described below: * * <pre> * Specifier | Description | Example(s) * ----------+------------------------------------------------------------------------------------------ * 'T' | Qualified type | "int" "java.lang.String" * 't' | Unqualified type | "int" "String" * 'H' | Qualified holder | "java.util.Map.Entry" * 'h' | Unqualified holder | "Entry" * 'n' | Field name | "age" * 'f' | Indicator if field is unresolved, static or instance | "unresolved" "static" "instance" * '%' | A '%' character | "%" * </pre> * * @param format a format specification * @return the result of formatting this field 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; JavaType type = getType(); while (index < format.length()) { char ch = format.charAt(index++); if (ch == '%') { if (index >= format.length()) { throw new UnknownFormatConversionException("An unquoted '%' character cannot terminate a field format specification"); } char specifier = format.charAt(index++); boolean qualified = false; switch (specifier) { case 'T': qualified = true; // fall through case 't': { sb.append(type.toJavaName(qualified)); break; } case 'H': qualified = true; // fall through case 'h': { sb.append(getDeclaringClass().toJavaName(qualified)); break; } case 'n': { sb.append(getName()); break; } case 'f': { sb.append(!(this instanceof ResolvedJavaField) ? "unresolved" : ((ResolvedJavaField) this).isStatic() ? "static" : "instance"); break; } case '%': { sb.append('%'); break; } default: { throw new UnknownFormatConversionException(String.valueOf(specifier)); } } } else { sb.append(ch); } } return sb.toString(); } }