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<div class="title">expr_op.h</div> </div>
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<a href="expr__op_8h.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/*****************************************************************************/</span><span class="comment"></span>
<a name="l00002"></a>00002 <span class="comment">/*!</span>
<a name="l00003"></a>00003 <span class="comment"> * \file expr_op.h</span>
<a name="l00004"></a>00004 <span class="comment"> * \brief Class Op representing the Expr's operator.</span>
<a name="l00005"></a>00005 <span class="comment"> * </span>
<a name="l00006"></a>00006 <span class="comment"> * Author: Sergey Berezin</span>
<a name="l00007"></a>00007 <span class="comment"> * </span>
<a name="l00008"></a>00008 <span class="comment"> * Created: Fri Feb 7 15:14:42 2003</span>
<a name="l00009"></a>00009 <span class="comment"> *</span>
<a name="l00010"></a>00010 <span class="comment"> * <hr></span>
<a name="l00011"></a>00011 <span class="comment"> *</span>
<a name="l00012"></a>00012 <span class="comment"> * License to use, copy, modify, sell and/or distribute this software</span>
<a name="l00013"></a>00013 <span class="comment"> * and its documentation for any purpose is hereby granted without</span>
<a name="l00014"></a>00014 <span class="comment"> * royalty, subject to the terms and conditions defined in the \ref</span>
<a name="l00015"></a>00015 <span class="comment"> * LICENSE file provided with this distribution.</span>
<a name="l00016"></a>00016 <span class="comment"> * </span>
<a name="l00017"></a>00017 <span class="comment"> * <hr></span>
<a name="l00018"></a>00018 <span class="comment"> * </span>
<a name="l00019"></a>00019 <span class="comment"> */</span>
<a name="l00020"></a>00020 <span class="comment">/*****************************************************************************/</span>
<a name="l00021"></a>00021
<a name="l00022"></a>00022 <span class="comment">// expr.h Has to be included outside of #ifndef, since it sources us</span>
<a name="l00023"></a>00023 <span class="comment">// recursively (read comments in expr_value.h).</span>
<a name="l00024"></a>00024 <span class="preprocessor">#ifndef _cvc3__expr_h_</span>
<a name="l00025"></a>00025 <span class="preprocessor"></span><span class="preprocessor">#include "<a class="code" href="expr_8h.html" title="Definition of the API to expression package. See class Expr for details.">expr.h</a>"</span>
<a name="l00026"></a>00026 <span class="preprocessor">#endif</span>
<a name="l00027"></a>00027 <span class="preprocessor"></span>
<a name="l00028"></a>00028 <span class="preprocessor">#ifndef _cvc3__expr_op_h_</span>
<a name="l00029"></a>00029 <span class="preprocessor"></span><span class="preprocessor">#define _cvc3__expr_op_h_</span>
<a name="l00030"></a>00030 <span class="preprocessor"></span>
<a name="l00031"></a>00031 <span class="keyword">namespace </span>CVC3 {
<a name="l00032"></a>00032
<a name="l00033"></a>00033 <span class="keyword">class </span>ExprManager;
<a name="l00034"></a>00034 <span class="comment"></span>
<a name="l00035"></a>00035 <span class="comment">///////////////////////////////////////////////////////////////////////////////</span>
<a name="l00036"></a>00036 <span class="comment"></span><span class="comment">// //</span>
<a name="l00037"></a>00037 <span class="comment">// Class: Op //</span>
<a name="l00038"></a>00038 <span class="comment">// Author: Clark Barrett //</span>
<a name="l00039"></a>00039 <span class="comment">// Created: Wed Nov 27 15:50:38 2002 //</span>
<a name="l00040"></a>00040 <span class="comment">// Description: Encapsulates all possible Expr operators (including UFUNC) //</span>
<a name="l00041"></a>00041 <span class="comment">// and allows switching on the kind. //</span>
<a name="l00042"></a>00042 <span class="comment">// Kinds should be registered with ExprManager. //</span>
<a name="l00043"></a>00043 <span class="comment">// </span>
<a name="l00044"></a>00044 <span class="comment">// Technically, class Op is not part of Expr; it is provided as an</span>
<a name="l00045"></a>00045 <span class="comment">// abstraction for the user. So, building an Expr from an Op is less</span>
<a name="l00046"></a>00046 <span class="comment">// efficient than building the same Expr directly from the kind.</span><span class="comment"></span>
<a name="l00047"></a>00047 <span class="comment">///////////////////////////////////////////////////////////////////////////////</span>
<a name="l00048"></a><a class="code" href="classCVC3_1_1Op.html">00048</a> <span class="comment"></span><span class="keyword">class </span><a class="code" href="classCVC3_1_1Op.html">Op</a> {
<a name="l00049"></a><a class="code" href="classCVC3_1_1Op.html#aa33520359f6cc0f51b476790d39ed869">00049</a> <span class="keyword">friend</span> <span class="keyword">class </span><a class="code" href="classCVC3_1_1Expr.html" title="Data structure of expressions in CVC3.">Expr</a>;
<a name="l00050"></a><a class="code" href="classCVC3_1_1Op.html#ad289fb23607ce2d96d86ef960f658268">00050</a> <span class="keyword">friend</span> <span class="keyword">class </span><a class="code" href="classCVC3_1_1ExprApply.html">ExprApply</a>;
<a name="l00051"></a><a class="code" href="classCVC3_1_1Op.html#aa8dfec19393162b68e69f3ba9f23288d">00051</a> <span class="keyword">friend</span> <span class="keyword">class </span><a class="code" href="classCVC3_1_1ExprApplyTmp.html">ExprApplyTmp</a>;
<a name="l00052"></a><a class="code" href="classCVC3_1_1Op.html#a61a2a0fa995725e9988683c6dabd503c">00052</a> <span class="keyword">friend</span> class ::CInterface;
<a name="l00053"></a>00053
<a name="l00054"></a><a class="code" href="classCVC3_1_1Op.html#a143cdd14e6c60f675292db3a938cab1b">00054</a> <span class="keywordtype">int</span> <a class="code" href="classCVC3_1_1Op.html#a143cdd14e6c60f675292db3a938cab1b">d_kind</a>;
<a name="l00055"></a><a class="code" href="classCVC3_1_1Op.html#a5fd945d015707e038c2716f355bed20a">00055</a> <a class="code" href="classCVC3_1_1Expr.html" title="Data structure of expressions in CVC3.">Expr</a> <a class="code" href="classCVC3_1_1Op.html#a5fd945d015707e038c2716f355bed20a">d_expr</a>;
<a name="l00056"></a>00056
<a name="l00057"></a>00057 <span class="comment">// Disallow silent conversion of expr to op</span><span class="comment"></span>
<a name="l00058"></a>00058 <span class="comment"> //! Constructor for operators</span>
<a name="l00059"></a><a class="code" href="classCVC3_1_1Op.html#a7bbef7d3bd53bdddef859a03cadd5087">00059</a> <span class="comment"></span> <a class="code" href="classCVC3_1_1Op.html#a7bbef7d3bd53bdddef859a03cadd5087" title="Constructor for operators.">Op</a>(<span class="keyword">const</span> <a class="code" href="classCVC3_1_1Expr.html" title="Data structure of expressions in CVC3.">Expr</a>& e): <a class="code" href="classCVC3_1_1Op.html#a143cdd14e6c60f675292db3a938cab1b">d_kind</a>(<a class="code" href="kinds_8h.html#aa10c9e8951b8ccf714a59ec321bdac5ba5c41450c4e719ca40d8e734f6a2008f0">APPLY</a>), <a class="code" href="classCVC3_1_1Op.html#a5fd945d015707e038c2716f355bed20a">d_expr</a>(e) { }
<a name="l00060"></a>00060
<a name="l00061"></a>00061 <span class="keyword">public</span>:<span class="comment"></span>
<a name="l00062"></a>00062 <span class="comment">/////////////////////////////////////////////////////////////////////////</span>
<a name="l00063"></a>00063 <span class="comment"></span><span class="comment">// Public methods</span><span class="comment"></span>
<a name="l00064"></a>00064 <span class="comment">/////////////////////////////////////////////////////////////////////////</span>
<a name="l00065"></a>00065 <span class="comment"></span>
<a name="l00066"></a><a class="code" href="classCVC3_1_1Op.html#a8fa141d0bd6b83e869be59b49e5a861b">00066</a> <a class="code" href="classCVC3_1_1Op.html#a8fa141d0bd6b83e869be59b49e5a861b">Op</a>() : <a class="code" href="classCVC3_1_1Op.html#a143cdd14e6c60f675292db3a938cab1b">d_kind</a>(<a class="code" href="kinds_8h.html#aa10c9e8951b8ccf714a59ec321bdac5ba5bc05ce87fa69f660d39d0a4fa188c67">NULL_KIND</a>) { }
<a name="l00067"></a>00067 <span class="comment">// Construct an operator from a kind.</span>
<a name="l00068"></a><a class="code" href="classCVC3_1_1Op.html#abf2e795a4ade60261b90a049b9fb4a8e">00068</a> <a class="code" href="classCVC3_1_1Op.html#a8fa141d0bd6b83e869be59b49e5a861b">Op</a>(<span class="keywordtype">int</span> kind) : <a class="code" href="classCVC3_1_1Op.html#a143cdd14e6c60f675292db3a938cab1b">d_kind</a>(kind), <a class="code" href="classCVC3_1_1Op.html#a5fd945d015707e038c2716f355bed20a">d_expr</a>()
<a name="l00069"></a>00069 { <a class="code" href="debug_8h.html#a40dac3bdb2166ffc852ee8b1489d2b56">DebugAssert</a>(kind != <a class="code" href="kinds_8h.html#aa10c9e8951b8ccf714a59ec321bdac5ba5c41450c4e719ca40d8e734f6a2008f0">APPLY</a>, <span class="stringliteral">"APPLY cannot be an operator on its own"</span>); }
<a name="l00070"></a>00070 <span class="comment">// Copy constructor</span>
<a name="l00071"></a><a class="code" href="classCVC3_1_1Op.html#aae799f0010bce53668e67a45b393fdea">00071</a> <a class="code" href="classCVC3_1_1Op.html#aae799f0010bce53668e67a45b393fdea">Op</a>(<span class="keyword">const</span> <a class="code" href="classCVC3_1_1Op.html">Op</a>& op): <a class="code" href="classCVC3_1_1Op.html#a143cdd14e6c60f675292db3a938cab1b">d_kind</a>(op.<a class="code" href="classCVC3_1_1Op.html#a143cdd14e6c60f675292db3a938cab1b">d_kind</a>), <a class="code" href="classCVC3_1_1Op.html#a5fd945d015707e038c2716f355bed20a">d_expr</a>(op.<a class="code" href="classCVC3_1_1Op.html#a5fd945d015707e038c2716f355bed20a">d_expr</a>) { }
<a name="l00072"></a>00072 <span class="comment">// A constructor that rebuilds the Op for the given ExprManager</span>
<a name="l00073"></a>00073 <a class="code" href="classCVC3_1_1Op.html#a8fa141d0bd6b83e869be59b49e5a861b">Op</a>(<a class="code" href="classCVC3_1_1ExprManager.html">ExprManager</a>* em, <span class="keyword">const</span> <a class="code" href="classCVC3_1_1Op.html">Op</a>& op);
<a name="l00074"></a>00074 <span class="comment">// Destructor (does nothing)</span>
<a name="l00075"></a><a class="code" href="classCVC3_1_1Op.html#a8ad7a4e27f91a6e1d81ed19d68f8e900">00075</a> <a class="code" href="classCVC3_1_1Op.html#a8ad7a4e27f91a6e1d81ed19d68f8e900">~Op</a>() { }
<a name="l00076"></a>00076 <span class="comment">// Assignment operator</span>
<a name="l00077"></a>00077 <a class="code" href="classCVC3_1_1Op.html">Op</a>& <a class="code" href="classCVC3_1_1Op.html#a9351b67badf60aa6e5ba3c7431b741b6">operator=</a>(<span class="keyword">const</span> <a class="code" href="classCVC3_1_1Op.html">Op</a>& op);
<a name="l00078"></a>00078
<a name="l00079"></a>00079 <span class="comment">// Check if Op is NULL</span>
<a name="l00080"></a><a class="code" href="classCVC3_1_1Op.html#a7c1789fc17db01c408890f9d28ff9151">00080</a> <span class="keywordtype">bool</span> <a class="code" href="classCVC3_1_1Op.html#a7c1789fc17db01c408890f9d28ff9151">isNull</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> <a class="code" href="classCVC3_1_1Op.html#a143cdd14e6c60f675292db3a938cab1b">d_kind</a> == <a class="code" href="kinds_8h.html#aa10c9e8951b8ccf714a59ec321bdac5ba5bc05ce87fa69f660d39d0a4fa188c67">NULL_KIND</a>; }
<a name="l00081"></a>00081 <span class="comment">// Return the kind of the operator</span>
<a name="l00082"></a><a class="code" href="classCVC3_1_1Op.html#a7fdaa9877edff1d7a32440a9400a81fd">00082</a> <span class="keywordtype">int</span> <a class="code" href="classCVC3_1_1Op.html#a7fdaa9877edff1d7a32440a9400a81fd">getKind</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> <a class="code" href="classCVC3_1_1Op.html#a143cdd14e6c60f675292db3a938cab1b">d_kind</a>; }
<a name="l00083"></a>00083 <span class="comment">// Return the expr associated with this operator if applicable.</span>
<a name="l00084"></a><a class="code" href="classCVC3_1_1Op.html#a4a38071541d1e863583f12e9d81de3a2">00084</a> <span class="keyword">const</span> <a class="code" href="classCVC3_1_1Expr.html" title="Data structure of expressions in CVC3.">Expr</a>& <a class="code" href="classCVC3_1_1Op.html#a4a38071541d1e863583f12e9d81de3a2">getExpr</a>()<span class="keyword"> const</span>
<a name="l00085"></a>00085 <span class="keyword"> </span>{ <a class="code" href="debug_8h.html#a40dac3bdb2166ffc852ee8b1489d2b56">DebugAssert</a>(<a class="code" href="classCVC3_1_1Op.html#a143cdd14e6c60f675292db3a938cab1b">d_kind</a> == <a class="code" href="kinds_8h.html#aa10c9e8951b8ccf714a59ec321bdac5ba5c41450c4e719ca40d8e734f6a2008f0">APPLY</a>, <span class="stringliteral">"Expected APPLY"</span>); <span class="keywordflow">return</span> <a class="code" href="classCVC3_1_1Op.html#a5fd945d015707e038c2716f355bed20a">d_expr</a>; }
<a name="l00086"></a>00086
<a name="l00087"></a>00087 <span class="comment">// Printing functions.</span>
<a name="l00088"></a>00088
<a name="l00089"></a>00089 std::string <a class="code" href="classCVC3_1_1Op.html#a84e7f24cbe0fe182ba2c57d941d5d1f6">toString</a>() <span class="keyword">const</span>;
<a name="l00090"></a><a class="code" href="classCVC3_1_1Op.html#ad034c5b0a6baee847a18015c97fc7daf">00090</a> <span class="keyword">friend</span> std::ostream& <a class="code" href="classCVC3_1_1Op.html#ad034c5b0a6baee847a18015c97fc7daf">operator<<</a>(std::ostream& os, <span class="keyword">const</span> <a class="code" href="classCVC3_1_1Op.html">Op</a>& op) {
<a name="l00091"></a>00091 <span class="keywordflow">return</span> os << <span class="stringliteral">"Op("</span> << op.<a class="code" href="classCVC3_1_1Op.html#a143cdd14e6c60f675292db3a938cab1b">d_kind</a> << <span class="stringliteral">" "</span> << op.<a class="code" href="classCVC3_1_1Op.html#a5fd945d015707e038c2716f355bed20a">d_expr</a> << <span class="stringliteral">")"</span>;
<a name="l00092"></a>00092 }
<a name="l00093"></a><a class="code" href="classCVC3_1_1Op.html#a4a524de1030a843cb95adc951c289b4c">00093</a> <span class="keyword">friend</span> <span class="keywordtype">bool</span> <a class="code" href="classCVC3_1_1Op.html#a4a524de1030a843cb95adc951c289b4c">operator==</a>(<span class="keyword">const</span> <a class="code" href="classCVC3_1_1Op.html">Op</a>& op1, <span class="keyword">const</span> <a class="code" href="classCVC3_1_1Op.html">Op</a>& op2) {
<a name="l00094"></a>00094 <span class="keywordflow">return</span> op1.<a class="code" href="classCVC3_1_1Op.html#a143cdd14e6c60f675292db3a938cab1b">d_kind</a> == op2.<a class="code" href="classCVC3_1_1Op.html#a143cdd14e6c60f675292db3a938cab1b">d_kind</a> && op1.<a class="code" href="classCVC3_1_1Op.html#a5fd945d015707e038c2716f355bed20a">d_expr</a> == op2.<a class="code" href="classCVC3_1_1Op.html#a5fd945d015707e038c2716f355bed20a">d_expr</a>;
<a name="l00095"></a>00095 }
<a name="l00096"></a>00096
<a name="l00097"></a>00097 }; <span class="comment">// end of class Op</span>
<a name="l00098"></a>00098
<a name="l00099"></a>00099
<a name="l00100"></a>00100 } <span class="comment">// end of namespace CVC3</span>
<a name="l00101"></a>00101
<a name="l00102"></a>00102 <span class="preprocessor">#endif</span>
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