Mercurial > hg > truffle
view graal/Runtime/src/com/oracle/graal/runtime/HotSpotSignature.java @ 2503:6bc5ec0255df
Added GRAAL_AUTHORS file. Removed individual @author tags per file.
author | Thomas Wuerthinger <thomas.wuerthinger@oracle.com> |
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date | Tue, 26 Apr 2011 22:00:17 +0200 |
parents | 3e3e8bd12730 |
children |
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/* * Copyright (c) 2011, 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.graal.runtime; import java.util.*; import com.sun.cri.ci.*; import com.sun.cri.ri.*; /** * Represents a method signature. */ public class HotSpotSignature extends CompilerObject implements RiSignature { private final List<String> arguments = new ArrayList<String>(); private final String returnType; private final String originalString; private RiType[] argumentTypes; private RiType returnTypeCache; public HotSpotSignature(Compiler compiler, String signature) { super(compiler); assert signature.length() > 0; this.originalString = signature; if (signature.charAt(0) == '(') { int cur = 1; while (cur < signature.length() && signature.charAt(cur) != ')') { int nextCur = parseSignature(signature, cur); arguments.add(signature.substring(cur, nextCur)); cur = nextCur; } cur++; int nextCur = parseSignature(signature, cur); returnType = signature.substring(cur, nextCur); assert nextCur == signature.length(); } else { returnType = null; } } private int parseSignature(String signature, int cur) { char first; do { first = signature.charAt(cur++); } while (first == '['); switch (first) { case 'L': while (signature.charAt(cur) != ';') { cur++; } cur++; break; case 'V': case 'I': case 'B': case 'C': case 'D': case 'F': case 'J': case 'S': case 'Z': break; default: assert false; } return cur; } @Override public int argumentCount(boolean withReceiver) { return arguments.size() + (withReceiver ? 1 : 0); } @Override public CiKind argumentKindAt(int index) { return CiKind.fromTypeString(arguments.get(index)); } @Override public int argumentSlots(boolean withReceiver) { int argSlots = 0; for (int i = 0; i < argumentCount(false); i++) { argSlots += argumentKindAt(i).sizeInSlots(); } return argSlots + (withReceiver ? 1 : 0); } @Override public RiType argumentTypeAt(int index, RiType accessingClass) { if (argumentTypes == null) { argumentTypes = new RiType[arguments.size()]; } RiType type = argumentTypes[index]; if (type == null) { type = compiler.getVMEntries().RiSignature_lookupType(arguments.get(index), (HotSpotTypeResolved) accessingClass); argumentTypes[index] = type; } return type; } @Override public String asString() { return originalString; } @Override public CiKind returnKind() { return CiKind.fromTypeString(returnType); } @Override public RiType returnType(RiType accessingClass) { if (returnTypeCache == null) { returnTypeCache = compiler.getVMEntries().RiSignature_lookupType(returnType, (HotSpotTypeResolved) accessingClass); } return returnTypeCache; } @Override public String toString() { return "HotSpotSignature<" + originalString + ">"; } }