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/*
* Copyright 2002 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
* CA 95054 USA or visit www.sun.com if you need additional information or
* have any questions.
*
*/
package sun.jvm.hotspot.interpreter;
import sun.jvm.hotspot.oops.*;
import sun.jvm.hotspot.utilities.*;
public class BytecodeNewArray extends Bytecode {
BytecodeNewArray(Method method, int bci) {
super(method, bci);
}
public int getType() {
return (int) javaByteAt(1);
}
public void verify() {
if (Assert.ASSERTS_ENABLED) {
Assert.that(isValid(), "check newarray");
}
}
public boolean isValid() {
boolean result = javaCode() == Bytecodes._newarray;
if (result == false) return false;
switch (getType()) {
case TypeArrayKlass.T_BOOLEAN:
case TypeArrayKlass.T_CHAR:
case TypeArrayKlass.T_FLOAT:
case TypeArrayKlass.T_DOUBLE:
case TypeArrayKlass.T_BYTE:
case TypeArrayKlass.T_SHORT:
case TypeArrayKlass.T_INT:
case TypeArrayKlass.T_LONG:
break;
default:
return false;
}
return true;
}
public String getTypeName() {
String result;
switch (getType()) {
case TypeArrayKlass.T_BOOLEAN:
result = "boolean";
break;
case TypeArrayKlass.T_CHAR:
result = "char";
break;
case TypeArrayKlass.T_FLOAT:
result = "float";
break;
case TypeArrayKlass.T_DOUBLE:
result = "double";
break;
case TypeArrayKlass.T_BYTE:
result = "byte";
break;
case TypeArrayKlass.T_SHORT:
result = "short";
break;
case TypeArrayKlass.T_INT:
result = "int";
break;
case TypeArrayKlass.T_LONG:
result = "long";
break;
default: // should not happen
result = "<invalid>";
break;
}
return result;
}
public static BytecodeNewArray at(Method method, int bci) {
BytecodeNewArray b = new BytecodeNewArray(method, bci);
if (Assert.ASSERTS_ENABLED) {
b.verify();
}
return b;
}
/** Like at, but returns null if the BCI is not at newarray */
public static BytecodeNewArray atCheck(Method method, int bci) {
BytecodeNewArray b = new BytecodeNewArray(method, bci);
return (b.isValid() ? b : null);
}
public static BytecodeNewArray at(BytecodeStream bcs) {
return new BytecodeNewArray(bcs.method(), bcs.bci());
}
public String toString() {
StringBuffer buf = new StringBuffer();
buf.append("newarray");
buf.append(spaces);
buf.append(getTypeName());
return buf.toString();
}
}
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