Mirror of the BLOAT repository
https://www.cs.purdue.edu/homes/hosking/bloat/
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122 lines
3.3 KiB
122 lines
3.3 KiB
/*
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* All files in the distribution of BLOAT (Bytecode Level Optimization and
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* Analysis tool for Java(tm)) are Copyright 1997-2001 by the Purdue
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* Research Foundation of Purdue University. All rights reserved.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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package EDU.purdue.cs.bloat.tree;
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import EDU.purdue.cs.bloat.editor.*;
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/**
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* CallMethodExpr represents the invocation of an object's method. In addition
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* to knowing what method is being called and its parameters, it also knows what
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* "kind" of method call it is (<tt>VIRTUAL</tt>, <tt>NONVIRTUAL</tt>, or
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* <tt>INTERFACE</tt>) and the object that is the reciever of this method
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* call.
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*
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* @see CallStaticExpr
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*/
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public class CallMethodExpr extends CallExpr {
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// Different kinds of methods to call...
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public static final int VIRTUAL = 0; // invokevirtual
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public static final int NONVIRTUAL = 1; // invokespecial
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public static final int INTERFACE = 2; // invokeinterface
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Expr receiver;
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int kind;
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/**
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* Constructor.
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*
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* @param kind
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* The kind (VIRTUAL, NONVIRTUAL, or INTERFACE) of method that is
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* being called.
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* @param receiver
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* The expression (object) whose method is being called.
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* @param params
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* Parameters to the method.
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* @param method
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* The method being called.
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* @param type
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* The type of this expression.
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*/
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public CallMethodExpr(final int kind, final Expr receiver,
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final Expr[] params, final MemberRef method, final Type type) {
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super(params, method, type);
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this.receiver = receiver;
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this.kind = kind;
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receiver.setParent(this);
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}
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public int kind() {
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return kind;
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}
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public Expr receiver() {
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return receiver;
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}
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public void visitForceChildren(final TreeVisitor visitor) {
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if (visitor.reverse()) {
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for (int i = params.length - 1; i >= 0; i--) {
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params[i].visit(visitor);
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}
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receiver.visit(visitor);
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} else {
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receiver.visit(visitor);
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for (int i = 0; i < params.length; i++) {
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params[i].visit(visitor);
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}
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}
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}
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public void visit(final TreeVisitor visitor) {
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visitor.visitCallMethodExpr(this);
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}
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public int exprHashCode() {
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int v = 5 + kind ^ receiver.exprHashCode();
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for (int i = 0; i < params.length; i++) {
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v ^= params[i].exprHashCode();
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}
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return v;
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}
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public boolean equalsExpr(final Expr other) {
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return false;
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}
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public Object clone() {
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final Expr[] p = new Expr[params.length];
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for (int i = 0; i < params.length; i++) {
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p[i] = (Expr) params[i].clone();
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}
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return copyInto(new CallMethodExpr(kind, (Expr) receiver.clone(), p,
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method, type));
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}
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}
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