/* Soot - a J*va Optimization Framework
* Copyright (C) 1997 Clark Verbrugge
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
/*
* Modified by the Sable Research Group and others 1997-1999.
* See the 'credits' file distributed with Soot for the complete list of
* contributors. (Soot is distributed at http://www.sable.mcgill.ca/soot)
*/
package soot.coffi;
/** Instruction subclasses are used to represent parsed bytecode; each
* bytecode operation has a corresponding subclass of Instruction.
* <p>
* Each subclass is derived from one of
* <ul><li>Instruction</li>
* <li>Instruction_noargs (an Instruction with no embedded arguments)</li>
* <li>Instruction_byte (an Instruction with a single byte data argument)</li>
* <li>Instruction_bytevar (a byte argument specifying a local variable)</li>
* <li>Instruction_byteindex (a byte argument specifying a constant pool index)</li>
* <li>Instruction_int (an Instruction with a single short data argument)</li>
* <li>Instruction_intvar (a short argument specifying a local variable)</li>
* <li>Instruction_intindex (a short argument specifying a constant pool index)</li>
* <li>Instruction_intbranch (a short argument specifying a code offset)</li>
* <li>Instruction_longbranch (an int argument specifying a code offset)</li>
* </ul>
* @author Clark Verbrugge
* @see Instruction
* @see Instruction_noargs
* @see Instruction_byte
* @see Instruction_bytevar
* @see Instruction_byteindex
* @see Instruction_int
* @see Instruction_intvar
* @see Instruction_intindex
* @see Instruction_intbranch
* @see Instruction_longbranch
* @see Instruction_Unknown
*/
class Instruction_Invokeinterface extends Instruction_intindex {
public Instruction_Invokeinterface() {
super((byte)ByteCode.INVOKEINTERFACE);
name = "invokeinterface";
//branches = true;
calls = true;
}
public byte nargs;
public byte reserved;
public String toString(cp_info constant_pool[]) {
return super.toString(constant_pool) + argsep + nargs + argsep +
"(reserved " + reserved + ")";
}
public int nextOffset(int curr) { return super.nextOffset(curr)+2; }
public int parse(byte bc[],int index) {
index = super.parse(bc,index);
nargs = bc[index];
index++;
reserved = bc[index];
return index+1;
}
public int compile(byte bc[],int index) {
index = super.compile(bc,index);
bc[index++] = nargs;
bc[index++] = reserved;
return index;
}
/*Instruction[] branchpoints(Instruction next) {
public Instruction i[] = new Instruction[1];
i[0] = null;
return i;
}*/
}