Mercurial > hg > graal-compiler
diff graal/com.oracle.max.graal.runtime/src/com/oracle/max/graal/runtime/HotSpotField.java @ 2874:d90bf514d647
Renamed packages.
author | Thomas Wuerthinger <thomas@wuerthinger.net> |
---|---|
date | Wed, 08 Jun 2011 08:59:54 +0200 |
parents | graal/com.oracle.max.graal.runtime/src/com/oracle/graal/runtime/HotSpotField.java@0341b6424579 |
children | 224412c24426 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/graal/com.oracle.max.graal.runtime/src/com/oracle/max/graal/runtime/HotSpotField.java Wed Jun 08 08:59:54 2011 +0200 @@ -0,0 +1,136 @@ +/* + * 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.max.graal.runtime; + +import java.lang.reflect.*; + +import com.oracle.max.graal.compiler.*; +import com.sun.cri.ci.CiConstant; +import com.sun.cri.ci.CiKind; +import com.sun.cri.ri.RiField; +import com.sun.cri.ri.RiType; + +/** + * Represents a field in a HotSpot type. + */ +public class HotSpotField extends CompilerObject implements RiField { + + private final RiType holder; + private final String name; + private final RiType type; + private final int offset; + private final int accessFlags; + private CiConstant constant; + + public HotSpotField(Compiler compiler, RiType holder, String name, RiType type, int offset, int accessFlags) { + super(compiler); + this.holder = holder; + this.name = name; + this.type = type; + this.offset = offset; + this.accessFlags = accessFlags; + } + + @Override + public int accessFlags() { + return accessFlags; + } + + @Override + public CiConstant constantValue(CiConstant receiver) { + if (receiver == null) { + if (constant == null && holder.isResolved() && holder.isSubtypeOf(compiler.getVMEntries().getType(C1XOptions.class))) { + Field f; + try { + f = C1XOptions.class.getField(name); + } catch (SecurityException e1) { + return null; + } catch (NoSuchFieldException e1) { + return null; + } + f.setAccessible(true); + if (Modifier.isStatic(f.getModifiers())) { + CiKind kind = CiKind.fromJavaClass(f.getType()); + Object value; + try { + value = f.get(null); + } catch (IllegalArgumentException e) { + return null; + } catch (IllegalAccessException e) { + return null; + } + constant = CiConstant.forBoxed(kind, value); + } + } + + // Constant part only valid for static fields. + return constant; + } + return null; + } + + @Override + public RiType holder() { + return holder; + } + + @Override + public boolean equals(Object obj) { + if (obj instanceof HotSpotField) { + HotSpotField other = (HotSpotField) obj; + return other.offset == offset && other.holder.equals(holder()); + } + return false; + } + + @Override + public boolean isResolved() { + return offset != -1; + } + + @Override + public CiKind kind() { + return type().kind(); + } + + @Override + public String name() { + return name; + } + + @Override + public RiType type() { + return type; + } + + public int offset() { + return offset; + } + + @Override + public String toString() { + return "HotSpotField<" + holder.name() + "." + name + ">"; + } + +}