Changes in src/Parser/parser.yy [ee27df2:f1aeede]
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src/Parser/parser.yy (modified) (4 diffs)
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src/Parser/parser.yy
ree27df2 rf1aeede 10 10 // Created On : Sat Sep 1 20:22:55 2001 11 11 // Last Modified By : Peter A. Buhr 12 // Last Modified On : Sun Oct 21 08:27:29201813 // Update Count : 40 4512 // Last Modified On : Thu Nov 8 18:08:23 2018 13 // Update Count : 4052 14 14 // 15 15 … … 187 187 188 188 ForCtrl * forCtrl( ExpressionNode * type, string * index, ExpressionNode * start, enum OperKinds compop, ExpressionNode * comp, ExpressionNode * inc ) { 189 ConstantExpr * constant = dynamic_cast<ConstantExpr *>(type->get_expr());189 ConstantExpr * constant = dynamic_cast<ConstantExpr *>(type->get_expr()); 190 190 if ( constant && (constant->get_constant()->get_value() == "0" || constant->get_constant()->get_value() == "1") ) { 191 191 type = new ExpressionNode( new CastExpr( maybeMoveBuild< Expression >(type), new BasicType( Type::Qualifiers(), BasicType::SignedInt ) ) ); 192 192 } // if 193 193 return new ForCtrl( 194 distAttr( DeclarationNode::newTypeof( type ), DeclarationNode::newName( index )->addInitializer( new InitializerNode( start ) ) ),194 distAttr( DeclarationNode::newTypeof( type, true ), DeclarationNode::newName( index )->addInitializer( new InitializerNode( start ) ) ), 195 195 new ExpressionNode( build_binary_val( compop, new ExpressionNode( build_varref( new string( *index ) ) ), comp ) ), 196 196 new ExpressionNode( build_binary_val( compop == OperKinds::LThan || compop == OperKinds::LEThan ? // choose += or -= for upto/downto 197 197 OperKinds::PlusAssn : OperKinds::MinusAssn, new ExpressionNode( build_varref( new string( *index ) ) ), inc ) ) ); 198 } // forCtrl 199 200 ForCtrl * forCtrl( ExpressionNode * type, ExpressionNode * index, ExpressionNode * start, enum OperKinds compop, ExpressionNode * comp, ExpressionNode * inc ) { 201 if ( NameExpr * identifier = dynamic_cast<NameExpr *>(index->get_expr()) ) { 202 return forCtrl( type, new string( identifier->name ), start, compop, comp, inc ); 203 } else { 204 SemanticError( yylloc, "Expression disallowed. Only loop-index name allowed" ); return nullptr; 205 } // if 198 206 } // forCtrl 199 207 … … 1132 1140 | FOR '(' push for_control_expression ')' statement pop 1133 1141 { $$ = new StatementNode( build_for( $4, $6 ) ); } 1142 | FOR '(' ')' statement // CFA => for ( ;; ) 1143 { $$ = new StatementNode( build_for( new ForCtrl( (ExpressionNode * )nullptr, (ExpressionNode * )nullptr, (ExpressionNode * )nullptr ), $4 ) ); } 1134 1144 ; 1135 1145 1136 1146 for_control_expression: 1137 comma_expression_opt // CFA 1138 { 1139 if ( ! $1 ) { // => for ( ;; ) 1140 $$ = new ForCtrl( (ExpressionNode * )nullptr, (ExpressionNode * )nullptr, (ExpressionNode * )nullptr ); 1141 } else { 1142 $$ = forCtrl( $1, new string( DeclarationNode::anonymous.newName() ), new ExpressionNode( build_constantInteger( *new string( "0" ) ) ), 1143 OperKinds::LThan, $1->clone(), new ExpressionNode( build_constantInteger( *new string( "1" ) ) ) ); 1144 } // if 1145 } 1147 comma_expression // CFA 1148 { $$ = forCtrl( $1, new string( DeclarationNode::anonymous.newName() ), new ExpressionNode( build_constantInteger( *new string( "0" ) ) ), 1149 OperKinds::LThan, $1->clone(), new ExpressionNode( build_constantInteger( *new string( "1" ) ) ) ); } 1146 1150 | constant_expression inclexcl constant_expression // CFA 1147 1151 { $$ = forCtrl( $1, new string( DeclarationNode::anonymous.newName() ), $1->clone(), $2, $3, new ExpressionNode( build_constantInteger( *new string( "1" ) ) ) ); } 1148 1152 | constant_expression inclexcl constant_expression '~' constant_expression // CFA 1149 1153 { $$ = forCtrl( $1, new string( DeclarationNode::anonymous.newName() ), $1->clone(), $2, $3, $5 ); } 1150 | comma_expression_opt ';' comma_expression // CFA 1151 { 1152 if ( ! $1 ) { 1153 SemanticError( yylloc, "Missing loop index." ); $$ = nullptr; 1154 } else if ( ! $3 ) { 1155 SemanticError( yylloc, "Missing loop range." ); $$ = nullptr; 1156 } else { 1157 if ( NameExpr *identifier = dynamic_cast<NameExpr *>($1->get_expr()) ) { 1158 $$ = forCtrl( $3, new string( identifier->name ), new ExpressionNode( build_constantInteger( *new string( "0" ) ) ), 1159 OperKinds::LThan, $3->clone(), new ExpressionNode( build_constantInteger( *new string( "1" ) ) ) ); 1160 } else { 1161 SemanticError( yylloc, "Expression disallowed. Only loop-index name allowed" ); $$ = nullptr; 1162 } // if 1163 } // if 1164 } 1165 | comma_expression_opt ';' constant_expression inclexcl constant_expression // CFA 1166 { 1167 if ( ! $1 ) { 1168 SemanticError( yylloc, "Missing loop index." ); $$ = nullptr; 1169 } else { 1170 if ( NameExpr *identifier = dynamic_cast<NameExpr *>($1->get_expr()) ) { 1171 $$ = forCtrl( $3, new string( identifier->name ), $3->clone(), $4, $5, new ExpressionNode( build_constantInteger( *new string( "1" ) ) ) ); 1172 } else { 1173 SemanticError( yylloc, "Expression disallowed. Only loop-index name allowed" ); $$ = nullptr; 1174 } // if 1175 } // if 1176 } 1177 | comma_expression_opt ';' constant_expression inclexcl constant_expression '~' constant_expression // CFA 1178 { 1179 if ( ! $1 ) { 1180 SemanticError( yylloc, "Missing loop index." ); $$ = nullptr; 1181 } else { 1182 if ( NameExpr *identifier = dynamic_cast<NameExpr *>($1->get_expr()) ) { 1183 $$ = forCtrl( $3, new string( identifier->name ), $3->clone(), $4, $5, $7 ); 1184 } else { 1185 SemanticError( yylloc, "Expression disallowed. Only loop-index name allowed" ); $$ = nullptr; 1186 } // if 1187 } // if 1188 } 1189 | comma_expression_opt ';' comma_expression_opt ';' comma_expression_opt 1154 | comma_expression ';' comma_expression // CFA 1155 { $$ = forCtrl( $3, $1, new ExpressionNode( build_constantInteger( *new string( "0" ) ) ), 1156 OperKinds::LThan, $3->clone(), new ExpressionNode( build_constantInteger( *new string( "1" ) ) ) ); } 1157 | comma_expression ';' constant_expression inclexcl constant_expression // CFA 1158 { $$ = forCtrl( $3, $1, $3->clone(), $4, $5, new ExpressionNode( build_constantInteger( *new string( "1" ) ) ) ); } 1159 | comma_expression ';' constant_expression inclexcl constant_expression '~' constant_expression // CFA 1160 { $$ = forCtrl( $3, $1, $3->clone(), $4, $5, $7 ); } 1161 | comma_expression ';' comma_expression_opt ';' comma_expression_opt 1190 1162 { $$ = new ForCtrl( $1, $3, $5 ); } 1163 | ';' comma_expression_opt ';' comma_expression_opt 1164 { $$ = new ForCtrl( (ExpressionNode * )nullptr, $2, $4 ); } 1191 1165 | declaration comma_expression_opt ';' comma_expression_opt // C99, declaration has ';' 1192 1166 { $$ = new ForCtrl( $1, $2, $4 ); } … … 1850 1824 1851 1825 indirect_type: 1852 TYPEOF '(' type ')' // GCC: typeof( x) y;1826 TYPEOF '(' type ')' // GCC: typeof( x ) y; 1853 1827 { $$ = $3; } 1854 | TYPEOF '(' comma_expression ')' // GCC: typeof( a+b) y;1828 | TYPEOF '(' comma_expression ')' // GCC: typeof( a+b ) y; 1855 1829 { $$ = DeclarationNode::newTypeof( $3 ); } 1856 | BASETYPEOF '(' type ')' // CFA: basetypeof( x) y;1857 { $$ = $3; }1858 | BASETYPEOF '(' comma_expression ')' // CFA: basetypeof( a+b) y;1859 { $$ = DeclarationNode::newTypeof( $3 ); }1860 | ATTR_TYPEGENname '(' type ')' // CFA: e.g., @type( x) y;1830 | BASETYPEOF '(' type ')' // CFA: basetypeof( x ) y; 1831 { $$ = DeclarationNode::newTypeof( new ExpressionNode( new TypeExpr( maybeMoveBuildType( $3 ) ) ), true ); } 1832 | BASETYPEOF '(' comma_expression ')' // CFA: basetypeof( a+b ) y; 1833 { $$ = DeclarationNode::newTypeof( $3, true ); } 1834 | ATTR_TYPEGENname '(' type ')' // CFA: e.g., @type( x ) y; 1861 1835 { $$ = DeclarationNode::newAttr( $1, $3 ); } 1862 | ATTR_TYPEGENname '(' comma_expression ')' // CFA: e.g., @type( a+b) y;1836 | ATTR_TYPEGENname '(' comma_expression ')' // CFA: e.g., @type( a+b ) y; 1863 1837 { $$ = DeclarationNode::newAttr( $1, $3 ); } 1864 1838 | ZERO_T // CFA
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