/* * Copyright (c) 2003 Sun Microsystems, Inc. All Rights Reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are * met: * * - Redistribution of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * - Redistribution in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * Neither the name of Sun Microsystems, Inc. or the names of * contributors may be used to endorse or promote products derived from * this software without specific prior written permission. * * This software is provided "AS IS," without a warranty of any kind. ALL * EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES, * INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A * PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN * MICROSYSTEMS, INC. ("SUN") AND ITS LICENSORS SHALL NOT BE LIABLE FOR * ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR * DISTRIBUTING THIS SOFTWARE OR ITS DERIVATIVES. IN NO EVENT WILL SUN OR * ITS LICENSORS BE LIABLE FOR ANY LOST REVENUE, PROFIT OR DATA, OR FOR * DIRECT, INDIRECT, SPECIAL, CONSEQUENTIAL, INCIDENTAL OR PUNITIVE * DAMAGES, HOWEVER CAUSED AND REGARDLESS OF THE THEORY OF LIABILITY, * ARISING OUT OF THE USE OF OR INABILITY TO USE THIS SOFTWARE, EVEN IF * SUN HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. * * You acknowledge that this software is not designed or intended for use * in the design, construction, operation or maintenance of any nuclear * facility. * * Sun gratefully acknowledges that this software was originally authored * and developed by Kenneth Bradley Russell and Christopher John Kline. */ package com.jogamp.gluegen.cgram.types; import com.jogamp.common.os.MachineDataInfo; import com.jogamp.gluegen.cgram.types.TypeComparator.SemanticEqualityOp; /** Represents a field in a struct or union. */ public class Field implements SemanticEqualityOp { private final String name; private final Type type; private SizeThunk offset; public Field(final String name, final Type type, final SizeThunk offset) { this.name = name; this.type = type; this.offset = offset; } @Override public int hashCode() { // 31 * x == (x << 5) - x final int hash = 31 + ( null != name ? name.hashCode() : 0 ); return ((hash << 5) - hash) + type.hashCode(); } @Override public boolean equals(final Object arg) { if ( !(arg instanceof Field) ) { return false; } final Field f = (Field) arg; // Note: don't know how to examine offset any more since it's // implemented in terms of code and they're not canonicalized return ( ( name != null && name.equals(f.name) ) || ( name == null && f.name == null ) ) && type.equals(f.type); } @Override public int hashCodeSemantics() { return type.hashCodeSemantics(); } @Override public boolean equalSemantics(final SemanticEqualityOp arg) { if ( !(arg instanceof Field) ) { return false; } final Field f = (Field) arg; // Note: don't know how to examine offset any more since it's // implemented in terms of code and they're not canonicalized return type.equalSemantics(f.type); } /** Name of this field in the containing data structure. */ public String getName() { return name; } /** Type of this field. */ public Type getType() { return type; } /** SizeThunk computing offset, in bytes, of this field in the containing data structure. */ public SizeThunk getOffset() { return offset; } /** Offset, in bytes, of this field in the containing data structure given the specified MachineDataInfo. */ public long getOffset(final MachineDataInfo machDesc) { return offset.computeSize(machDesc); } /** Sets the offset of this field in the containing data structure. */ public void setOffset(final SizeThunk offset) { this.offset = offset; } @Override public String toString() { if (!getType().isFunctionPointer()) { if (getName() == null && getType().asCompound() != null && getType().asCompound().isUnion()) { return "" + getType() + ";"; } return "" + getType() + " " + getName() + ";"; } else { final FunctionType ft = getType().asPointer().getTargetType().asFunction(); // FIXME: pick up calling convention? return ft.toString(getName(), null, false, true) + ";"; } } }