80 lines
2.5 KiB
Java
80 lines
2.5 KiB
Java
/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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*
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* The contents of this file are subject to the Netscape Public License
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* Version 1.0 (the "NPL"); you may not use this file except in
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* compliance with the NPL. You may obtain a copy of the NPL at
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* http://www.mozilla.org/NPL/
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*
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* Software distributed under the NPL is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
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* for the specific language governing rights and limitations under the
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* NPL.
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*
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* The Initial Developer of this code under the NPL is Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1998 Netscape Communications Corporation. All Rights
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* Reserved.
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*/
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/*
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* Handle stepping over function calls
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*/
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// when who what
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// 06/27/97 jband added this header to my code
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//
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package com.netscape.jsdebugging.ifcui;
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import com.netscape.jsdebugging.ifcui.palomar.util.*;
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import com.netscape.jsdebugging.api.*;
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class StepOver implements StepHandler
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{
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public StepOver( JSThreadState startThreadState,
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JSSourceLocation startSourceLocation,
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JSPC startPC )
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{
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_callChain = new CallChain(startThreadState);
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_startSourceLocation = startSourceLocation;
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_startPC = startPC;
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}
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// implement StepHandler
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public int step( JSThreadState threadState,
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JSPC pc,
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JSSourceLocation sourceLocation,
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Hook hook )
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{
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switch( _callChain.compare(new CallChain(threadState)) )
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{
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case CallChain.EQUAL:
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break;
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case CallChain.CALLER:
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return STOP;
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case CallChain.CALLEE:
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return CONTINUE_SEND_INTERRUPT;
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case CallChain.DISJOINT:
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return STOP;
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default:
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if(AS.S)ER.T(false,"coding error in StepOut (missed case)",this);
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break;
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}
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// definately jumping back
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if( pc.getPC() < _startPC.getPC() &&
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sourceLocation.getLine() != _startSourceLocation.getLine() )
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return STOP;
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// definately jumping forward
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if( sourceLocation.getLine() > _startSourceLocation.getLine() )
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return STOP;
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return CONTINUE_SEND_INTERRUPT;
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}
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private CallChain _callChain;
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private JSSourceLocation _startSourceLocation;
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private JSPC _startPC;
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}
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