1 | // |
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2 | // Cforall Version 1.0.0 Copyright (C) 2015 University of Waterloo |
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3 | // |
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4 | // The contents of this file are covered under the licence agreement in the |
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5 | // file "LICENCE" distributed with Cforall. |
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6 | // |
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7 | // TypedefTable.cc -- |
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8 | // |
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9 | // Author : Rodolfo G. Esteves |
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10 | // Created On : Sat May 16 15:20:13 2015 |
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11 | // Last Modified By : Peter A. Buhr |
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12 | // Last Modified On : Sat May 16 15:24:03 2015 |
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13 | // Update Count : 2 |
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14 | // |
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15 | |
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16 | #include <map> |
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17 | #include <list> |
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18 | #include "TypedefTable.h" |
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19 | #include <cassert> |
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20 | using namespace std; |
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21 | |
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22 | #if 0 |
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23 | #include <iostream> |
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24 | #define debugPrint(x ) cerr << x |
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25 | #else |
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26 | #define debugPrint( x ) |
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27 | #endif |
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28 | |
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29 | TypedefTable::TypedefTable() : currentScope( 0 ) {} |
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30 | |
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31 | bool TypedefTable::isKind( string identifier, kind_t kind ) const { |
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32 | tableType::const_iterator id_pos = table.find( identifier ); |
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33 | if ( id_pos == table.end()) { |
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34 | return true; |
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35 | } else { |
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36 | return (*((*id_pos ).second.begin())).kind == kind; |
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37 | } |
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38 | } |
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39 | |
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40 | bool TypedefTable::isIdentifier( string identifier ) const { |
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41 | return isKind( identifier, ID ); |
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42 | } |
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43 | |
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44 | bool TypedefTable::isTypedef( string identifier ) const { |
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45 | return isKind( identifier, TD ); |
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46 | } |
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47 | |
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48 | bool TypedefTable::isTypegen( string identifier ) const { |
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49 | return isKind( identifier, TG ); |
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50 | } |
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51 | |
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52 | void TypedefTable::addToScope( const std::string &identifier, kind_t kind, int scope ) { |
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53 | if ( currentContext != "" && scope == contextScope ) { |
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54 | DeferredEntry entry = { identifier, kind }; |
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55 | contexts[currentContext].push_back( entry ); |
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56 | } else { |
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57 | debugPrint( "Adding " << identifier << " as type " << kind << " scope " << scope << " from scope " << currentScope << endl ); |
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58 | Entry newEntry = { scope, kind }; |
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59 | tableType::iterator curPos = table.find( identifier ); |
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60 | if ( curPos == table.end()) { |
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61 | list<Entry> newList; |
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62 | newList.push_front( newEntry ); |
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63 | table[identifier] = newList; |
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64 | } else { |
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65 | list<Entry>::iterator listPos = (*curPos ).second.begin(); |
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66 | while ( listPos != (*curPos ).second.end() && listPos->scope > scope ) { |
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67 | listPos++; |
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68 | } |
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69 | (*curPos ).second.insert( listPos, newEntry ); |
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70 | } |
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71 | } |
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72 | } |
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73 | |
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74 | void TypedefTable::addToCurrentScope( const std::string &identifier, kind_t kind ) { |
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75 | addToScope( identifier, kind, currentScope ); |
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76 | } |
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77 | |
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78 | void TypedefTable::addToCurrentScope( kind_t kind ) { |
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79 | addToCurrentScope( nextIdentifiers.top(), kind ); |
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80 | } |
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81 | |
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82 | void TypedefTable::addToEnclosingScope( const std::string &identifier, kind_t kind ) { |
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83 | assert( currentScope >= 1 ); |
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84 | addToScope( identifier, kind, currentScope - 1 ); |
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85 | } |
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86 | |
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87 | void TypedefTable::addToEnclosingScope( kind_t kind ) { |
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88 | addToEnclosingScope( nextIdentifiers.top(), kind ); |
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89 | } |
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90 | |
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91 | void TypedefTable::addToEnclosingScope2( const std::string &identifier, kind_t kind ) { |
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92 | assert( currentScope >= 2 ); |
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93 | addToScope( identifier, kind, currentScope - 2 ); |
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94 | } |
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95 | |
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96 | void TypedefTable::addToEnclosingScope2( kind_t kind ) { |
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97 | addToEnclosingScope2( nextIdentifiers.top(), kind ); |
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98 | } |
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99 | |
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100 | void TypedefTable::setNextIdentifier( const std::string &identifier ) { |
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101 | nextIdentifiers.top() = identifier; |
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102 | } |
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103 | |
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104 | void TypedefTable::openContext( std::string contextName ) { |
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105 | map< string, deferListType >::iterator i = contexts.find( contextName ); |
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106 | if ( i != contexts.end() ) { |
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107 | deferListType &entries = i->second; |
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108 | for ( deferListType::iterator i = entries.begin(); i != entries.end(); i++) { |
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109 | addToEnclosingScope( i->identifier, i->kind ); |
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110 | } |
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111 | } |
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112 | } |
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113 | |
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114 | void TypedefTable::enterScope( void ) { |
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115 | currentScope += 1; |
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116 | deferListStack.push( deferListType() ); |
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117 | nextIdentifiers.push( "" ); |
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118 | debugPrint( "Entering scope " << currentScope << ", nextIdentifiers size is " << nextIdentifiers.size() << endl ); |
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119 | } |
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120 | |
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121 | void TypedefTable::leaveScope( void ) { |
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122 | debugPrint( "Leaving scope " << currentScope << endl ); |
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123 | for ( tableType::iterator i = table.begin(); i != table.end(); ) { |
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124 | list<Entry> &declList = (*i ).second; |
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125 | while ( ! declList.empty() && declList.front().scope == currentScope ) { |
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126 | declList.pop_front(); |
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127 | } |
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128 | if ( declList.empty() ) { // standard idom for erasing during traversal |
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129 | table.erase( i++ ); |
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130 | } else ++i; |
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131 | } |
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132 | currentScope -= 1; |
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133 | for ( deferListType::iterator i = deferListStack.top().begin(); i != deferListStack.top().end(); i++) { |
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134 | addToCurrentScope( i->identifier, i->kind ); |
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135 | } |
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136 | deferListStack.pop(); |
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137 | debugPrint( "nextIdentifiers size is " << nextIdentifiers.size() << " top is " << nextIdentifiers.top() << endl ); |
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138 | nextIdentifiers.pop(); |
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139 | } |
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140 | |
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141 | void TypedefTable::enterContext( std::string contextName ) { |
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142 | currentContext = contextName; |
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143 | contextScope = currentScope; |
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144 | } |
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145 | |
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146 | void TypedefTable::leaveContext( void ) { |
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147 | currentContext = ""; |
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148 | } |
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149 | |
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150 | void TypedefTable::print( void ) const { |
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151 | for ( tableType::const_iterator i = table.begin(); i != table.end(); i++) { |
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152 | debugPrint( (*i ).first << ": " ); |
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153 | list<Entry> declList = (*i ).second; |
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154 | for ( list<Entry>::const_iterator j = declList.begin(); j != declList.end(); j++ ) { |
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155 | debugPrint( "(" << (*j ).scope << " " << (*j).kind << ") " ); |
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156 | } |
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157 | debugPrint( endl ); |
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158 | } |
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159 | } |
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160 | |
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161 | // Local Variables: // |
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162 | // tab-width: 4 // |
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163 | // mode: c++ // |
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164 | // compile-command: "make install" // |
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165 | // End: // |
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