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<h1>/net/fileserver/nas/home/mdh/vrq/src/cfref.h</h1><a href="cfref_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>
<a name="l00002"></a>00002 <span class="comment"> * Copyright (C) 1997-2007, Mark Hummel</span>
<a name="l00003"></a>00003 <span class="comment"> * This file is part of Vrq.</span>
<a name="l00004"></a>00004 <span class="comment"> *</span>
<a name="l00005"></a>00005 <span class="comment"> * Vrq is free software; you can redistribute it and/or</span>
<a name="l00006"></a>00006 <span class="comment"> * modify it under the terms of the GNU General Public</span>
<a name="l00007"></a>00007 <span class="comment"> * License as published by the Free Software Foundation; either</span>
<a name="l00008"></a>00008 <span class="comment"> * version 2 of the License, or (at your option) any later version.</span>
<a name="l00009"></a>00009 <span class="comment"> *</span>
<a name="l00010"></a>00010 <span class="comment"> * Vrq is distributed in the hope that it will be useful,</span>
<a name="l00011"></a>00011 <span class="comment"> * but WITHOUT ANY WARRANTY; without even the implied warranty of</span>
<a name="l00012"></a>00012 <span class="comment"> * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU</span>
<a name="l00013"></a>00013 <span class="comment"> * General Public License for more details.</span>
<a name="l00014"></a>00014 <span class="comment"> *</span>
<a name="l00015"></a>00015 <span class="comment"> * You should have received a copy of the GNU General Public</span>
<a name="l00016"></a>00016 <span class="comment"> * License along with this library; if not, write to the Free Software</span>
<a name="l00017"></a>00017 <span class="comment"> * Foundation, Inc., 51 Franklin Street, Fifth Floor, </span>
<a name="l00018"></a>00018 <span class="comment"> * Boston, MA 02110-1301 USA</span>
<a name="l00019"></a>00019 <span class="comment"> *****************************************************************************</span>
<a name="l00020"></a>00020 <span class="comment"> */</span>
<a name="l00021"></a>00021 <span class="comment">/******************************************************************************</span>
<a name="l00022"></a>00022 <span class="comment"> *</span>
<a name="l00023"></a>00023 <span class="comment"> *</span>
<a name="l00024"></a>00024 <span class="comment"> * cfref.hpp</span>
<a name="l00025"></a>00025 <span class="comment"> * - class definition of forward reference </span>
<a name="l00026"></a>00026 <span class="comment"> * definition nodes</span>
<a name="l00027"></a>00027 <span class="comment"> *</span>
<a name="l00028"></a>00028 <span class="comment"> ******************************************************************************</span>
<a name="l00029"></a>00029 <span class="comment"> */</span>
<a name="l00030"></a>00030
<a name="l00031"></a>00031 <span class="preprocessor">#ifndef CFREF_HPP</span>
<a name="l00032"></a>00032 <span class="preprocessor"></span><span class="preprocessor">#define CFREF_HPP</span>
<a name="l00033"></a>00033 <span class="preprocessor"></span>
<a name="l00034"></a>00034 <span class="preprocessor">#include <stdio.h></span>
<a name="l00035"></a>00035 <span class="preprocessor">#include <set></span>
<a name="l00036"></a>00036 <span class="preprocessor">#include <list></span>
<a name="l00037"></a>00037 <span class="preprocessor">#include <algorithm></span>
<a name="l00038"></a>00038 <span class="preprocessor">#include "<a class="code" href="glue_8h.html">glue.h</a>"</span>
<a name="l00039"></a>00039 <span class="preprocessor">#include "<a class="code" href="cnode_8h.html">cnode.h</a>"</span>
<a name="l00040"></a>00040 <span class="preprocessor">#include "<a class="code" href="cdecl_8h.html">cdecl.h</a>"</span>
<a name="l00041"></a>00041
<a name="l00042"></a>00042
<a name="l00043"></a>00043 <span class="keyword">class </span><a class="code" href="classCNode.html" title="Primary data structure representing parse tree nodes.">CNode</a>;
<a name="l00044"></a>00044
<a name="l00051"></a><a class="code" href="classCFref.html">00051</a> <span class="keyword">class </span><a class="code" href="classCFref.html" title="Forward reference declaration.">CFref</a> : <span class="keyword">public</span> <a class="code" href="classCDecl.html" title="Base class for describing declaration objects.">CDecl</a>
<a name="l00052"></a>00052 {
<a name="l00053"></a>00053 <span class="keyword">private</span>:
<a name="l00054"></a>00054 <a class="code" href="classCDecl.html" title="Base class for describing declaration objects.">CDecl</a>* decl;
<a name="l00055"></a>00055 <a class="code" href="cdecl_8h.html#2079c5562904beb3c6648c13117153a0" title="Declaration types.">Decl_t</a> direction;
<a name="l00056"></a>00056 <span class="keywordtype">int</span> constrained;
<a name="l00057"></a>00057 set<Decl_t> typeConstraints;
<a name="l00058"></a>00058 <a class="code" href="classCNode.html" title="Primary data structure representing parse tree nodes.">CNode</a>* msb;
<a name="l00059"></a>00059 <a class="code" href="classCNode.html" title="Primary data structure representing parse tree nodes.">CNode</a>* lsb;
<a name="l00060"></a>00060 <span class="keywordtype">int</span> lval;
<a name="l00061"></a>00061
<a name="l00062"></a>00062 <span class="keywordtype">int</span> isArray;
<a name="l00063"></a>00063 <span class="keywordtype">int</span> lsbVolatile;
<a name="l00064"></a>00064 <span class="keywordtype">int</span> msbVolatile;
<a name="l00065"></a>00065 <span class="keywordtype">int</span> lsbConstant;
<a name="l00066"></a>00066 <span class="keywordtype">int</span> msbConstant;
<a name="l00067"></a>00067 <span class="keywordtype">int</span> isInconsistant;
<a name="l00068"></a>00068
<a name="l00069"></a>00069 <span class="keywordtype">int</span> currentDirection;
<a name="l00070"></a>00070
<a name="l00071"></a>00071 <span class="keywordtype">int</span> refCount;
<a name="l00072"></a>00072 <span class="keyword">public</span>:
<a name="l00078"></a>00078 <a class="code" href="classCFref.html#b1717c71fa161d2a9f33846651e274fe" title="Create a forward reference.">CFref</a>( <a class="code" href="classCSymbol.html" title="Holder for character strings.">CSymbol</a>* symbol, <a class="code" href="structCoord__t.html" title="Structure to hold file coordinates.">Coord_t</a>* aLoc );
<a name="l00083"></a>00083 <span class="keywordtype">void</span> <a class="code" href="classCFref.html#334567cdaa476c2f94fd6be81ace6495" title="Set forward declaration&#39;s actual declaration.">SetDecl</a>( <a class="code" href="classCDecl.html" title="Base class for describing declaration objects.">CDecl</a>* aDecl );
<a name="l00088"></a>00088 <a class="code" href="classCDecl.html" title="Base class for describing declaration objects.">CDecl</a>* <a class="code" href="classCFref.html#750fbb10834851d2945e1d76840c1906" title="Get forward reference&#39;s actual declaration.">GetDecl</a>( <span class="keywordtype">void</span> );
<a name="l00094"></a>00094 <span class="keywordtype">void</span> <a class="code" href="classCFref.html#22835da38d41e7e38cbd74b573538ee4" title="Set range info for declaration.">SetRangeInfo</a>( <span class="keywordtype">int</span> isArray, <a class="code" href="classCNode.html" title="Primary data structure representing parse tree nodes.">CNode</a>* range );
<a name="l00099"></a>00099 <a class="code" href="classCNode.html" title="Primary data structure representing parse tree nodes.">CNode</a>* <a class="code" href="classCFref.html#1c8968945fc45fee2e6995ae3f05621a" title="Get msb of vector range.">GetMsb</a>( <span class="keywordtype">void</span> );
<a name="l00104"></a>00104 <a class="code" href="classCNode.html" title="Primary data structure representing parse tree nodes.">CNode</a>* <a class="code" href="classCFref.html#caaea868bc33b35aade7e2528bb84af0" title="Get lsb of vector range.">GetLsb</a>( <span class="keywordtype">void</span> );
<a name="l00109"></a>00109 <span class="keyword">virtual</span> <a class="code" href="classCNode.html" title="Primary data structure representing parse tree nodes.">CNode</a>* <a class="code" href="classCFref.html#134a47825719a0175ce11ef0d65b220d" title="Get expression for declaration&#39;s range (msb/lsb).">GetRange</a>();
<a name="l00114"></a><a class="code" href="classCFref.html#9c996cda0d9e5921d74dd2fd35b9129a">00114</a> <a class="code" href="cdecl_8h.html#2079c5562904beb3c6648c13117153a0" title="Declaration types.">Decl_t</a> <a class="code" href="classCFref.html#9c996cda0d9e5921d74dd2fd35b9129a" title="Get direction of declaration.">Direction</a>() { <span class="keywordflow">return</span> direction; }
<a name="l00119"></a><a class="code" href="classCFref.html#4f2d28d61f8c17ce145b63a5c7314e78">00119</a> <span class="keywordtype">void</span> <a class="code" href="classCFref.html#9c996cda0d9e5921d74dd2fd35b9129a" title="Get direction of declaration.">Direction</a>( <a class="code" href="cdecl_8h.html#2079c5562904beb3c6648c13117153a0" title="Declaration types.">Decl_t</a> d ) { direction = d; }
<a name="l00124"></a><a class="code" href="classCFref.html#c9213bc88315ad6ae7a7b537e7da1bd0">00124</a> <span class="keywordtype">void</span> <a class="code" href="classCFref.html#7476be9d38887a113f0c81189e466b8c" title="Get lval flag.">Lval</a>( <span class="keywordtype">int</span> aLval ) { lval = aLval; }
<a name="l00129"></a><a class="code" href="classCFref.html#7476be9d38887a113f0c81189e466b8c">00129</a> <span class="keywordtype">int</span> <a class="code" href="classCFref.html#7476be9d38887a113f0c81189e466b8c" title="Get lval flag.">Lval</a>() { <span class="keywordflow">return</span> lval; }
<a name="l00134"></a><a class="code" href="classCFref.html#a89f087c18e51e18dc8cb66749d3233b">00134</a> <span class="keywordtype">void</span> <a class="code" href="classCFref.html#2e90a6cfc997bd3217d1133bd0881b6c" title="Get array flag.">IsArray</a>( <span class="keywordtype">int</span> v ) { isArray = v; }
<a name="l00139"></a><a class="code" href="classCFref.html#2e90a6cfc997bd3217d1133bd0881b6c">00139</a> <span class="keywordtype">int</span> <a class="code" href="classCFref.html#2e90a6cfc997bd3217d1133bd0881b6c" title="Get array flag.">IsArray</a>() { <span class="keywordflow">return</span> isArray; }
<a name="l00144"></a>00144 <span class="keywordtype">int</span> <a class="code" href="classCFref.html#7677b4b9fbbbbc28b7e344c9a6b8e19a" title="Determine if range can be inferred.">IndicesRangeValid</a>();
<a name="l00150"></a><a class="code" href="classCFref.html#8b46f7dff604f229360492841ae4dccd">00150</a> <span class="keywordtype">void</span> <a class="code" href="classCFref.html#8b46f7dff604f229360492841ae4dccd" title="Add a constraint on valid types for this declaration.">ConstrainTypes</a>( list<Decl_t>& aTypes ) {
<a name="l00151"></a>00151 list<Decl_t> types(aTypes);
<a name="l00152"></a>00152
<a name="l00153"></a>00153 list<Decl_t>::iterator ptr;
<a name="l00154"></a>00154 <span class="keywordflow">for</span>( ptr = aTypes.begin(); ptr != aTypes.end(); ++ptr ) {
<a name="l00155"></a>00155 <a class="code" href="classCDecl.html#be5ac882f4cbc497a37e0f4f52b6b0ec" title="Get a list of members of the given declaration class/type.">CDecl::GetMembers</a>( *ptr, types );
<a name="l00156"></a>00156 }
<a name="l00157"></a>00157 <span class="keywordflow">if</span>( typeConstraints.size() == 0 ) {
<a name="l00158"></a>00158 <a class="code" href="group__utilities.html#g6dbd4cb0f492800d40e2cad42a0ea250" title="Add invariant checks to code.">MASSERT</a>( !constrained );
<a name="l00159"></a>00159 set_union( types.begin(), types.end(),
<a name="l00160"></a>00160 typeConstraints.begin(), typeConstraints.end(),
<a name="l00161"></a>00161 inserter( typeConstraints,
<a name="l00162"></a>00162 typeConstraints.begin() ) );
<a name="l00163"></a>00163 } <span class="keywordflow">else</span> {
<a name="l00164"></a>00164 set_intersection( types.begin(), types.end(),
<a name="l00165"></a>00165 typeConstraints.begin(), typeConstraints.end(),
<a name="l00166"></a>00166 inserter( typeConstraints,
<a name="l00167"></a>00167 typeConstraints.begin() ) );
<a name="l00168"></a>00168 }
<a name="l00169"></a>00169 constrained = TRUE;
<a name="l00170"></a>00170 }
<a name="l00176"></a><a class="code" href="classCFref.html#7ad3519d63756731949b1ff907acaebb">00176</a> <span class="keywordtype">int</span> <a class="code" href="classCFref.html#7ad3519d63756731949b1ff907acaebb" title="Test if a give declaration type is valid for this reference.">IsTypeValid</a>( <a class="code" href="cdecl_8h.html#2079c5562904beb3c6648c13117153a0" title="Declaration types.">Decl_t</a> t ) {
<a name="l00177"></a>00177 <span class="keywordflow">if</span>( !constrained ) {
<a name="l00178"></a>00178 <a class="code" href="group__utilities.html#g6dbd4cb0f492800d40e2cad42a0ea250" title="Add invariant checks to code.">MASSERT</a>( typeConstraints.size() == 0 );
<a name="l00179"></a>00179 <span class="keywordflow">return</span> TRUE;
<a name="l00180"></a>00180 }
<a name="l00181"></a>00181 list<Decl_t> searchList;
<a name="l00182"></a>00182 <a class="code" href="classCDecl.html#be5ac882f4cbc497a37e0f4f52b6b0ec" title="Get a list of members of the given declaration class/type.">CDecl::GetMembers</a>( t, searchList );
<a name="l00183"></a>00183 list<Decl_t>::iterator ptr;
<a name="l00184"></a>00184 <span class="keywordflow">if</span>( typeConstraints.count( t ) != 0 ) {
<a name="l00185"></a>00185 <span class="keywordflow">return</span> TRUE;
<a name="l00186"></a>00186 }
<a name="l00187"></a>00187 <span class="keywordflow">for</span>( ptr = searchList.begin();
<a name="l00188"></a>00188 ptr != searchList.end(); ++ptr ) {
<a name="l00189"></a>00189 <span class="keywordflow">if</span>( typeConstraints.count( *ptr ) != 0 ) {
<a name="l00190"></a>00190 <span class="keywordflow">return</span> TRUE;
<a name="l00191"></a>00191 }
<a name="l00192"></a>00192 }
<a name="l00193"></a>00193 <span class="keywordflow">return</span> FALSE;
<a name="l00194"></a>00194 }
<a name="l00199"></a>00199 <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="classCFref.html#e42560b26c97d4db9b0201076f653f49" title="Dump declaration info to file descriptor.">Dump</a>( FILE* f );
<a name="l00200"></a>00200 <span class="keyword">private</span>:
<a name="l00204"></a>00204 <span class="keywordtype">void</span> SetRange( <a class="code" href="classCNode.html" title="Primary data structure representing parse tree nodes.">CNode</a>* ) { <a class="code" href="group__utilities.html#g6dbd4cb0f492800d40e2cad42a0ea250" title="Add invariant checks to code.">MASSERT</a>( FALSE ); }
<a name="l00205"></a>00205 };
<a name="l00206"></a>00206
<a name="l00207"></a>00207 <span class="preprocessor">#endif // CFREF_HPP</span>
</pre></div></div>
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