Changeset d672350 for src/ResolvExpr/Resolver.cc
- Timestamp:
- Mar 21, 2022, 1:44:06 PM (4 years ago)
- Branches:
- ADT, ast-experimental, enum, master, pthread-emulation, qualifiedEnum
- Children:
- a76202d
- Parents:
- ef3c383 (diff), dbe2533 (diff)
Note: this is a merge changeset, the changes displayed below correspond to the merge itself.
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src/ResolvExpr/Resolver.cc
ref3c383 rd672350 9 9 // Author : Aaron B. Moss 10 10 // Created On : Sun May 17 12:17:01 2015 11 // Last Modified By : Peter A. Buhr12 // Last Modified On : Tue Feb 1 16:27:14202213 // Update Count : 24 511 // Last Modified By : Andrew Beach 12 // Last Modified On : Fri Mar 18 10:41:00 2022 13 // Update Count : 247 14 14 // 15 15 … … 997 997 /// Calls the CandidateFinder and finds the single best candidate 998 998 CandidateRef findUnfinishedKindExpression( 999 const ast::Expr * untyped, const ast::SymbolTable & symtab, const std::string & kind,999 const ast::Expr * untyped, const ResolveContext & context, const std::string & kind, 1000 1000 std::function<bool(const Candidate &)> pred = anyCandidate, ResolvMode mode = {} 1001 1001 ) { … … 1007 1007 ++recursion_level; 1008 1008 ast::TypeEnvironment env; 1009 CandidateFinder finder { symtab, env };1009 CandidateFinder finder( context, env ); 1010 1010 finder.find( untyped, recursion_level == 1 ? mode.atTopLevel() : mode ); 1011 1011 --recursion_level; … … 1129 1129 1130 1130 ast::ptr< ast::Expr > resolveInVoidContext( 1131 const ast::Expr * expr, const ast::SymbolTable & symtab, ast::TypeEnvironment & env 1131 const ast::Expr * expr, const ResolveContext & context, 1132 ast::TypeEnvironment & env 1132 1133 ) { 1133 1134 assertf( expr, "expected a non-null expression" ); … … 1136 1137 ast::ptr< ast::CastExpr > untyped = new ast::CastExpr{ expr }; 1137 1138 CandidateRef choice = findUnfinishedKindExpression( 1138 untyped, symtab, "", anyCandidate, ResolvMode::withAdjustment() );1139 untyped, context, "", anyCandidate, ResolvMode::withAdjustment() ); 1139 1140 1140 1141 // a cast expression has either 0 or 1 interpretations (by language rules); … … 1149 1150 /// context. 1150 1151 ast::ptr< ast::Expr > findVoidExpression( 1151 const ast::Expr * untyped, const ast::SymbolTable & symtab1152 const ast::Expr * untyped, const ResolveContext & context 1152 1153 ) { 1153 1154 ast::TypeEnvironment env; 1154 ast::ptr< ast::Expr > newExpr = resolveInVoidContext( untyped, symtab, env );1155 ast::ptr< ast::Expr > newExpr = resolveInVoidContext( untyped, context, env ); 1155 1156 finishExpr( newExpr, env, untyped->env ); 1156 1157 return newExpr; … … 1163 1164 /// lowest cost, returning the resolved version 1164 1165 ast::ptr< ast::Expr > findKindExpression( 1165 const ast::Expr * untyped, const ast::SymbolTable & symtab,1166 const ast::Expr * untyped, const ResolveContext & context, 1166 1167 std::function<bool(const Candidate &)> pred = anyCandidate, 1167 1168 const std::string & kind = "", ResolvMode mode = {} … … 1169 1170 if ( ! untyped ) return {}; 1170 1171 CandidateRef choice = 1171 findUnfinishedKindExpression( untyped, symtab, kind, pred, mode );1172 findUnfinishedKindExpression( untyped, context, kind, pred, mode ); 1172 1173 ResolvExpr::finishExpr( choice->expr, choice->env, untyped->env ); 1173 1174 return std::move( choice->expr ); … … 1176 1177 /// Resolve `untyped` to the single expression whose candidate is the best match 1177 1178 ast::ptr< ast::Expr > findSingleExpression( 1178 const ast::Expr * untyped, const ast::SymbolTable & symtab1179 const ast::Expr * untyped, const ResolveContext & context 1179 1180 ) { 1180 1181 Stats::ResolveTime::start( untyped ); 1181 auto res = findKindExpression( untyped, symtab);1182 auto res = findKindExpression( untyped, context ); 1182 1183 Stats::ResolveTime::stop(); 1183 1184 return res; … … 1186 1187 1187 1188 ast::ptr< ast::Expr > findSingleExpression( 1188 const ast::Expr * untyped, const ast::Type * type, const ast::SymbolTable & symtab 1189 const ast::Expr * untyped, const ast::Type * type, 1190 const ResolveContext & context 1189 1191 ) { 1190 1192 assert( untyped && type ); 1191 1193 ast::ptr< ast::Expr > castExpr = new ast::CastExpr{ untyped, type }; 1192 ast::ptr< ast::Expr > newExpr = findSingleExpression( castExpr, symtab);1193 removeExtraneousCast( newExpr, symtab );1194 ast::ptr< ast::Expr > newExpr = findSingleExpression( castExpr, context ); 1195 removeExtraneousCast( newExpr, context.symtab ); 1194 1196 return newExpr; 1195 1197 } … … 1217 1219 /// Resolve `untyped` as an integral expression, returning the resolved version 1218 1220 ast::ptr< ast::Expr > findIntegralExpression( 1219 const ast::Expr * untyped, const ast::SymbolTable & symtab1221 const ast::Expr * untyped, const ResolveContext & context 1220 1222 ) { 1221 return findKindExpression( untyped, symtab, hasIntegralType, "condition" );1223 return findKindExpression( untyped, context, hasIntegralType, "condition" ); 1222 1224 } 1223 1225 … … 1249 1251 // for work previously in GenInit 1250 1252 static InitTweak::ManagedTypes_new managedTypes; 1253 ResolveContext context; 1251 1254 1252 1255 bool inEnumDecl = false; … … 1254 1257 public: 1255 1258 static size_t traceId; 1256 Resolver_new() = default; 1257 Resolver_new( const ast::SymbolTable & syms ) { symtab = syms; } 1259 Resolver_new( const ast::TranslationGlobal & global ) : 1260 context{ symtab, global } {} 1261 Resolver_new( const ResolveContext & context ) : 1262 ast::WithSymbolTable{ context.symtab }, 1263 context{ symtab, context.global } {} 1258 1264 1259 1265 const ast::FunctionDecl * previsit( const ast::FunctionDecl * ); … … 1272 1278 const ast::AsmStmt * previsit( const ast::AsmStmt * ); 1273 1279 const ast::IfStmt * previsit( const ast::IfStmt * ); 1274 const ast::WhileDoStmt * 1280 const ast::WhileDoStmt * previsit( const ast::WhileDoStmt * ); 1275 1281 const ast::ForStmt * previsit( const ast::ForStmt * ); 1276 1282 const ast::SwitchStmt * previsit( const ast::SwitchStmt * ); … … 1299 1305 1300 1306 void resolve( ast::TranslationUnit& translationUnit ) { 1301 ast::Pass< Resolver_new >::run( translationUnit );1307 ast::Pass< Resolver_new >::run( translationUnit, translationUnit.global ); 1302 1308 } 1303 1309 1304 1310 ast::ptr< ast::Init > resolveCtorInit( 1305 const ast::ConstructorInit * ctorInit, const ast::SymbolTable & symtab1311 const ast::ConstructorInit * ctorInit, const ResolveContext & context 1306 1312 ) { 1307 1313 assert( ctorInit ); 1308 ast::Pass< Resolver_new > resolver { symtab };1314 ast::Pass< Resolver_new > resolver( context ); 1309 1315 return ctorInit->accept( resolver ); 1310 1316 } 1311 1317 1312 1318 const ast::Expr * resolveStmtExpr( 1313 const ast::StmtExpr * stmtExpr, const ast::SymbolTable & symtab1319 const ast::StmtExpr * stmtExpr, const ResolveContext & context 1314 1320 ) { 1315 1321 assert( stmtExpr ); 1316 ast::Pass< Resolver_new > resolver { symtab };1322 ast::Pass< Resolver_new > resolver( context ); 1317 1323 auto ret = mutate(stmtExpr->accept(resolver)); 1318 1324 strict_dynamic_cast< ast::StmtExpr * >( ret )->computeResult(); … … 1321 1327 1322 1328 namespace { 1323 const ast::Attribute * handleAttribute(const CodeLocation & loc, const ast::Attribute * attr, const ast::SymbolTable & symtab) {1329 const ast::Attribute * handleAttribute(const CodeLocation & loc, const ast::Attribute * attr, const ResolveContext & context) { 1324 1330 std::string name = attr->normalizedName(); 1325 1331 if (name == "constructor" || name == "destructor") { 1326 1332 if (attr->params.size() == 1) { 1327 1333 auto arg = attr->params.front(); 1328 auto resolved = ResolvExpr::findSingleExpression( arg, new ast::BasicType( ast::BasicType::LongLongSignedInt ), symtab);1334 auto resolved = ResolvExpr::findSingleExpression( arg, new ast::BasicType( ast::BasicType::LongLongSignedInt ), context ); 1329 1335 auto result = eval(arg); 1330 1336 … … 1369 1375 1370 1376 for (auto & attr: mutDecl->attributes) { 1371 attr = handleAttribute(mutDecl->location, attr, symtab);1377 attr = handleAttribute(mutDecl->location, attr, context ); 1372 1378 } 1373 1379 … … 1382 1388 } 1383 1389 for (auto & asst : mutDecl->assertions) { 1384 asst = fixObjectType(asst.strict_as<ast::ObjectDecl>(), symtab);1390 asst = fixObjectType(asst.strict_as<ast::ObjectDecl>(), context); 1385 1391 symtab.addId(asst); 1386 1392 mutType->assertions.emplace_back(new ast::VariableExpr(functionDecl->location, asst)); … … 1394 1400 1395 1401 for (auto & param : mutDecl->params) { 1396 param = fixObjectType(param.strict_as<ast::ObjectDecl>(), symtab);1402 param = fixObjectType(param.strict_as<ast::ObjectDecl>(), context); 1397 1403 symtab.addId(param); 1398 1404 paramTypes.emplace_back(param->get_type()); 1399 1405 } 1400 1406 for (auto & ret : mutDecl->returns) { 1401 ret = fixObjectType(ret.strict_as<ast::ObjectDecl>(), symtab);1407 ret = fixObjectType(ret.strict_as<ast::ObjectDecl>(), context); 1402 1408 returnTypes.emplace_back(ret->get_type()); 1403 1409 } … … 1470 1476 // enumerator initializers should not use the enum type to initialize, since the 1471 1477 // enum type is still incomplete at this point. Use `int` instead. 1472 objectDecl = fixObjectType(objectDecl, symtab);1478 objectDecl = fixObjectType(objectDecl, context); 1473 1479 currentObject = ast::CurrentObject{ 1474 1480 objectDecl->location, new ast::BasicType{ ast::BasicType::SignedInt } }; … … 1476 1482 else { 1477 1483 if (!objectDecl->isTypeFixed) { 1478 auto newDecl = fixObjectType(objectDecl, symtab);1484 auto newDecl = fixObjectType(objectDecl, context); 1479 1485 auto mutDecl = mutate(newDecl); 1480 1486 … … 1507 1513 // nested type decls are hoisted already. no need to do anything 1508 1514 if (auto obj = member.as<ast::ObjectDecl>()) { 1509 member = fixObjectType(obj, symtab);1515 member = fixObjectType(obj, context); 1510 1516 } 1511 1517 } … … 1530 1536 return ast::mutate_field( 1531 1537 assertDecl, &ast::StaticAssertDecl::cond, 1532 findIntegralExpression( assertDecl->cond, symtab) );1538 findIntegralExpression( assertDecl->cond, context ) ); 1533 1539 } 1534 1540 1535 1541 template< typename PtrType > 1536 const PtrType * handlePtrType( const PtrType * type, const ast::SymbolTable & symtab) {1542 const PtrType * handlePtrType( const PtrType * type, const ResolveContext & context ) { 1537 1543 if ( type->dimension ) { 1538 ast::ptr< ast::Type > sizeType = ast::sizeType;1544 ast::ptr< ast::Type > sizeType = context.global.sizeType; 1539 1545 ast::mutate_field( 1540 1546 type, &PtrType::dimension, 1541 findSingleExpression( type->dimension, sizeType, symtab) );1547 findSingleExpression( type->dimension, sizeType, context ) ); 1542 1548 } 1543 1549 return type; … … 1545 1551 1546 1552 const ast::ArrayType * Resolver_new::previsit( const ast::ArrayType * at ) { 1547 return handlePtrType( at, symtab);1553 return handlePtrType( at, context ); 1548 1554 } 1549 1555 1550 1556 const ast::PointerType * Resolver_new::previsit( const ast::PointerType * pt ) { 1551 return handlePtrType( pt, symtab);1557 return handlePtrType( pt, context ); 1552 1558 } 1553 1559 … … 1557 1563 1558 1564 return ast::mutate_field( 1559 exprStmt, &ast::ExprStmt::expr, findVoidExpression( exprStmt->expr, symtab) );1565 exprStmt, &ast::ExprStmt::expr, findVoidExpression( exprStmt->expr, context ) ); 1560 1566 } 1561 1567 … … 1564 1570 1565 1571 asmExpr = ast::mutate_field( 1566 asmExpr, &ast::AsmExpr::operand, findVoidExpression( asmExpr->operand, symtab) );1572 asmExpr, &ast::AsmExpr::operand, findVoidExpression( asmExpr->operand, context ) ); 1567 1573 1568 1574 return asmExpr; … … 1578 1584 const ast::IfStmt * Resolver_new::previsit( const ast::IfStmt * ifStmt ) { 1579 1585 return ast::mutate_field( 1580 ifStmt, &ast::IfStmt::cond, findIntegralExpression( ifStmt->cond, symtab) );1586 ifStmt, &ast::IfStmt::cond, findIntegralExpression( ifStmt->cond, context ) ); 1581 1587 } 1582 1588 1583 1589 const ast::WhileDoStmt * Resolver_new::previsit( const ast::WhileDoStmt * whileDoStmt ) { 1584 1590 return ast::mutate_field( 1585 whileDoStmt, &ast::WhileDoStmt::cond, findIntegralExpression( whileDoStmt->cond, symtab) );1591 whileDoStmt, &ast::WhileDoStmt::cond, findIntegralExpression( whileDoStmt->cond, context ) ); 1586 1592 } 1587 1593 … … 1589 1595 if ( forStmt->cond ) { 1590 1596 forStmt = ast::mutate_field( 1591 forStmt, &ast::ForStmt::cond, findIntegralExpression( forStmt->cond, symtab) );1597 forStmt, &ast::ForStmt::cond, findIntegralExpression( forStmt->cond, context ) ); 1592 1598 } 1593 1599 1594 1600 if ( forStmt->inc ) { 1595 1601 forStmt = ast::mutate_field( 1596 forStmt, &ast::ForStmt::inc, findVoidExpression( forStmt->inc, symtab) );1602 forStmt, &ast::ForStmt::inc, findVoidExpression( forStmt->inc, context ) ); 1597 1603 } 1598 1604 … … 1604 1610 switchStmt = ast::mutate_field( 1605 1611 switchStmt, &ast::SwitchStmt::cond, 1606 findIntegralExpression( switchStmt->cond, symtab) );1612 findIntegralExpression( switchStmt->cond, context ) ); 1607 1613 currentObject = ast::CurrentObject{ switchStmt->location, switchStmt->cond->result }; 1608 1614 return switchStmt; … … 1617 1623 ast::ptr< ast::Expr > untyped = 1618 1624 new ast::CastExpr{ caseStmt->location, caseStmt->cond, initAlts.front().type }; 1619 ast::ptr< ast::Expr > newExpr = findSingleExpression( untyped, symtab);1625 ast::ptr< ast::Expr > newExpr = findSingleExpression( untyped, context ); 1620 1626 1621 1627 // case condition cannot have a cast in C, so it must be removed here, regardless of … … 1638 1644 branchStmt = ast::mutate_field( 1639 1645 branchStmt, &ast::BranchStmt::computedTarget, 1640 findSingleExpression( branchStmt->computedTarget, target, symtab) );1646 findSingleExpression( branchStmt->computedTarget, target, context ) ); 1641 1647 } 1642 1648 return branchStmt; … … 1648 1654 returnStmt = ast::mutate_field( 1649 1655 returnStmt, &ast::ReturnStmt::expr, 1650 findSingleExpression( returnStmt->expr, functionReturn, symtab) );1656 findSingleExpression( returnStmt->expr, functionReturn, context ) ); 1651 1657 } 1652 1658 return returnStmt; … … 1663 1669 throwStmt = ast::mutate_field( 1664 1670 throwStmt, &ast::ThrowStmt::expr, 1665 findSingleExpression( throwStmt->expr, exceptType, symtab) );1671 findSingleExpression( throwStmt->expr, exceptType, context ) ); 1666 1672 } 1667 1673 return throwStmt; … … 1707 1713 1708 1714 ast::TypeEnvironment env; 1709 CandidateFinder funcFinder { symtab, env };1715 CandidateFinder funcFinder( context, env ); 1710 1716 1711 1717 // Find all candidates for a function in canonical form … … 1921 1927 ); 1922 1928 1923 clause2.target.args.emplace_back( findSingleExpression( init, symtab) );1929 clause2.target.args.emplace_back( findSingleExpression( init, context ) ); 1924 1930 } 1925 1931 1926 1932 // Resolve the conditions as if it were an IfStmt, statements normally 1927 clause2.cond = findSingleExpression( clause.cond, symtab);1933 clause2.cond = findSingleExpression( clause.cond, context ); 1928 1934 clause2.stmt = clause.stmt->accept( *visitor ); 1929 1935 … … 1940 1946 ast::ptr< ast::Type > target = 1941 1947 new ast::BasicType{ ast::BasicType::LongLongUnsignedInt }; 1942 timeout2.time = findSingleExpression( stmt->timeout.time, target, symtab);1943 timeout2.cond = findSingleExpression( stmt->timeout.cond, symtab);1948 timeout2.time = findSingleExpression( stmt->timeout.time, target, context ); 1949 timeout2.cond = findSingleExpression( stmt->timeout.cond, context ); 1944 1950 timeout2.stmt = stmt->timeout.stmt->accept( *visitor ); 1945 1951 … … 1954 1960 ast::WaitForStmt::OrElse orElse2; 1955 1961 1956 orElse2.cond = findSingleExpression( stmt->orElse.cond, symtab);1962 orElse2.cond = findSingleExpression( stmt->orElse.cond, context ); 1957 1963 orElse2.stmt = stmt->orElse.stmt->accept( *visitor ); 1958 1964 … … 1975 1981 for (auto & expr : exprs) { 1976 1982 // only struct- and union-typed expressions are viable candidates 1977 expr = findKindExpression( expr, symtab, structOrUnion, "with expression" );1983 expr = findKindExpression( expr, context, structOrUnion, "with expression" ); 1978 1984 1979 1985 // if with expression might be impure, create a temporary so that it is evaluated once … … 2001 2007 ast::ptr< ast::Expr > untyped = new ast::UntypedInitExpr{ 2002 2008 singleInit->location, singleInit->value, currentObject.getOptions() }; 2003 ast::ptr<ast::Expr> newExpr = findSingleExpression( untyped, symtab);2009 ast::ptr<ast::Expr> newExpr = findSingleExpression( untyped, context ); 2004 2010 const ast::InitExpr * initExpr = newExpr.strict_as< ast::InitExpr >(); 2005 2011
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