diff options
Diffstat (limited to 'contrib/llvm/tools/clang/lib/Parse/ParseExpr.cpp')
| -rw-r--r-- | contrib/llvm/tools/clang/lib/Parse/ParseExpr.cpp | 323 |
1 files changed, 165 insertions, 158 deletions
diff --git a/contrib/llvm/tools/clang/lib/Parse/ParseExpr.cpp b/contrib/llvm/tools/clang/lib/Parse/ParseExpr.cpp index e7973f7..c4beab1 100644 --- a/contrib/llvm/tools/clang/lib/Parse/ParseExpr.cpp +++ b/contrib/llvm/tools/clang/lib/Parse/ParseExpr.cpp @@ -20,9 +20,9 @@ //===----------------------------------------------------------------------===// #include "clang/Parse/Parser.h" -#include "clang/Parse/DeclSpec.h" -#include "clang/Parse/Scope.h" -#include "clang/Parse/Template.h" +#include "clang/Sema/DeclSpec.h" +#include "clang/Sema/Scope.h" +#include "clang/Sema/ParsedTemplate.h" #include "clang/Basic/PrettyStackTrace.h" #include "RAIIObjectsForParser.h" #include "llvm/ADT/SmallVector.h" @@ -30,8 +30,7 @@ using namespace clang; /// getBinOpPrecedence - Return the precedence of the specified binary operator -/// token. This returns: -/// +/// token. static prec::Level getBinOpPrecedence(tok::TokenKind Kind, bool GreaterThanIsOperator, bool CPlusPlus0x) { @@ -176,8 +175,8 @@ static prec::Level getBinOpPrecedence(tok::TokenKind Kind, /// assignment-expression /// expression ',' assignment-expression /// -Parser::OwningExprResult Parser::ParseExpression() { - OwningExprResult LHS(ParseAssignmentExpression()); +ExprResult Parser::ParseExpression() { + ExprResult LHS(ParseAssignmentExpression()); if (LHS.isInvalid()) return move(LHS); return ParseRHSOfBinaryExpression(move(LHS), prec::Comma); @@ -188,9 +187,9 @@ Parser::OwningExprResult Parser::ParseExpression() { /// routine is necessary to disambiguate @try-statement from, /// for example, @encode-expression. /// -Parser::OwningExprResult +ExprResult Parser::ParseExpressionWithLeadingAt(SourceLocation AtLoc) { - OwningExprResult LHS(ParseObjCAtExpression(AtLoc)); + ExprResult LHS(ParseObjCAtExpression(AtLoc)); if (LHS.isInvalid()) return move(LHS); return ParseRHSOfBinaryExpression(move(LHS), prec::Comma); @@ -199,9 +198,9 @@ Parser::ParseExpressionWithLeadingAt(SourceLocation AtLoc) { /// This routine is called when a leading '__extension__' is seen and /// consumed. This is necessary because the token gets consumed in the /// process of disambiguating between an expression and a declaration. -Parser::OwningExprResult +ExprResult Parser::ParseExpressionWithLeadingExtension(SourceLocation ExtLoc) { - OwningExprResult LHS(Actions, true); + ExprResult LHS(true); { // Silence extension warnings in the sub-expression ExtensionRAIIObject O(Diags); @@ -211,27 +210,27 @@ Parser::ParseExpressionWithLeadingExtension(SourceLocation ExtLoc) { } LHS = Actions.ActOnUnaryOp(getCurScope(), ExtLoc, tok::kw___extension__, - move(LHS)); + LHS.take()); if (LHS.isInvalid()) return move(LHS); - return ParseRHSOfBinaryExpression(move(LHS), prec::Comma); + return ParseRHSOfBinaryExpression(LHS.take(), prec::Comma); } /// ParseAssignmentExpression - Parse an expr that doesn't include commas. /// -Parser::OwningExprResult Parser::ParseAssignmentExpression() { +ExprResult Parser::ParseAssignmentExpression() { if (Tok.is(tok::code_completion)) { - Actions.CodeCompleteOrdinaryName(getCurScope(), Action::CCC_Expression); + Actions.CodeCompleteOrdinaryName(getCurScope(), Sema::PCC_Expression); ConsumeCodeCompletionToken(); } if (Tok.is(tok::kw_throw)) return ParseThrowExpression(); - OwningExprResult LHS(ParseCastExpression(false)); + ExprResult LHS(ParseCastExpression(false)); if (LHS.isInvalid()) return move(LHS); - return ParseRHSOfBinaryExpression(move(LHS), prec::Assignment); + return ParseRHSOfBinaryExpression(LHS.take(), prec::Assignment); } /// ParseAssignmentExprWithObjCMessageExprStart - Parse an assignment expression @@ -242,38 +241,38 @@ Parser::OwningExprResult Parser::ParseAssignmentExpression() { /// /// Since this handles full assignment-expression's, it handles postfix /// expressions and other binary operators for these expressions as well. -Parser::OwningExprResult +ExprResult Parser::ParseAssignmentExprWithObjCMessageExprStart(SourceLocation LBracLoc, SourceLocation SuperLoc, - TypeTy *ReceiverType, - ExprArg ReceiverExpr) { - OwningExprResult R(ParseObjCMessageExpressionBody(LBracLoc, SuperLoc, - ReceiverType, - move(ReceiverExpr))); + ParsedType ReceiverType, + Expr *ReceiverExpr) { + ExprResult R + = ParseObjCMessageExpressionBody(LBracLoc, SuperLoc, + ReceiverType, ReceiverExpr); if (R.isInvalid()) return move(R); - R = ParsePostfixExpressionSuffix(move(R)); + R = ParsePostfixExpressionSuffix(R.take()); if (R.isInvalid()) return move(R); - return ParseRHSOfBinaryExpression(move(R), prec::Assignment); + return ParseRHSOfBinaryExpression(R.take(), prec::Assignment); } -Parser::OwningExprResult Parser::ParseConstantExpression() { +ExprResult Parser::ParseConstantExpression() { // C++ [basic.def.odr]p2: // An expression is potentially evaluated unless it appears where an // integral constant expression is required (see 5.19) [...]. EnterExpressionEvaluationContext Unevaluated(Actions, - Action::Unevaluated); + Sema::Unevaluated); - OwningExprResult LHS(ParseCastExpression(false)); + ExprResult LHS(ParseCastExpression(false)); if (LHS.isInvalid()) return move(LHS); - return ParseRHSOfBinaryExpression(move(LHS), prec::Conditional); + return ParseRHSOfBinaryExpression(LHS.take(), prec::Conditional); } /// ParseRHSOfBinaryExpression - Parse a binary expression that starts with /// LHS and has a precedence of at least MinPrec. -Parser::OwningExprResult -Parser::ParseRHSOfBinaryExpression(OwningExprResult LHS, prec::Level MinPrec) { +ExprResult +Parser::ParseRHSOfBinaryExpression(ExprResult LHS, prec::Level MinPrec) { prec::Level NextTokPrec = getBinOpPrecedence(Tok.getKind(), GreaterThanIsOperator, getLang().CPlusPlus0x); @@ -291,7 +290,7 @@ Parser::ParseRHSOfBinaryExpression(OwningExprResult LHS, prec::Level MinPrec) { ConsumeToken(); // Special case handling for the ternary operator. - OwningExprResult TernaryMiddle(Actions, true); + ExprResult TernaryMiddle(true); if (NextTokPrec == prec::Conditional) { if (Tok.isNot(tok::colon)) { // Don't parse FOO:BAR as if it were a typo for FOO::BAR. @@ -358,7 +357,7 @@ Parser::ParseRHSOfBinaryExpression(OwningExprResult LHS, prec::Level MinPrec) { // Therefore we need some special-casing here. // Also note that the third operand of the conditional operator is // an assignment-expression in C++. - OwningExprResult RHS(Actions); + ExprResult RHS; if (getLang().CPlusPlus && NextTokPrec <= prec::Conditional) RHS = ParseAssignmentExpression(); else @@ -385,7 +384,7 @@ Parser::ParseRHSOfBinaryExpression(OwningExprResult LHS, prec::Level MinPrec) { // is okay, to bind exactly as tightly. For example, compile A=B=C=D as // A=(B=(C=D)), where each paren is a level of recursion here. // The function takes ownership of the RHS. - RHS = ParseRHSOfBinaryExpression(move(RHS), + RHS = ParseRHSOfBinaryExpression(RHS.get(), static_cast<prec::Level>(ThisPrec + !isRightAssoc)); if (RHS.isInvalid()) return move(RHS); @@ -408,11 +407,11 @@ Parser::ParseRHSOfBinaryExpression(OwningExprResult LHS, prec::Level MinPrec) { Actions.getExprRange(RHS.get()).getEnd())); LHS = Actions.ActOnBinOp(getCurScope(), OpToken.getLocation(), - OpToken.getKind(), move(LHS), move(RHS)); + OpToken.getKind(), LHS.take(), RHS.take()); } else LHS = Actions.ActOnConditionalOp(OpToken.getLocation(), ColonLoc, - move(LHS), move(TernaryMiddle), - move(RHS)); + LHS.take(), TernaryMiddle.take(), + RHS.take()); } } } @@ -422,11 +421,11 @@ Parser::ParseRHSOfBinaryExpression(OwningExprResult LHS, prec::Level MinPrec) { /// id-expression that is the operand of address-of gets special treatment /// due to member pointers. /// -Parser::OwningExprResult Parser::ParseCastExpression(bool isUnaryExpression, +ExprResult Parser::ParseCastExpression(bool isUnaryExpression, bool isAddressOfOperand, - TypeTy *TypeOfCast) { + ParsedType TypeOfCast) { bool NotCastExpr; - OwningExprResult Res = ParseCastExpression(isUnaryExpression, + ExprResult Res = ParseCastExpression(isUnaryExpression, isAddressOfOperand, NotCastExpr, TypeOfCast); @@ -527,14 +526,14 @@ Parser::OwningExprResult Parser::ParseCastExpression(bool isUnaryExpression, /// '::'[opt] 'delete' '[' ']' cast-expression /// /// [GNU] unary-type-trait: -/// '__has_nothrow_assign' [TODO] -/// '__has_nothrow_copy' [TODO] -/// '__has_nothrow_constructor' [TODO] +/// '__has_nothrow_assign' +/// '__has_nothrow_copy' +/// '__has_nothrow_constructor' /// '__has_trivial_assign' [TODO] /// '__has_trivial_copy' [TODO] /// '__has_trivial_constructor' /// '__has_trivial_destructor' -/// '__has_virtual_destructor' [TODO] +/// '__has_virtual_destructor' /// '__is_abstract' [TODO] /// '__is_class' /// '__is_empty' [TODO] @@ -546,11 +545,11 @@ Parser::OwningExprResult Parser::ParseCastExpression(bool isUnaryExpression, /// [GNU] binary-type-trait: /// '__is_base_of' [TODO] /// -Parser::OwningExprResult Parser::ParseCastExpression(bool isUnaryExpression, +ExprResult Parser::ParseCastExpression(bool isUnaryExpression, bool isAddressOfOperand, bool &NotCastExpr, - TypeTy *TypeOfCast) { - OwningExprResult Res(Actions); + ParsedType TypeOfCast) { + ExprResult Res; tok::TokenKind SavedKind = Tok.getKind(); NotCastExpr = false; @@ -561,16 +560,17 @@ Parser::OwningExprResult Parser::ParseCastExpression(bool isUnaryExpression, // expression, or statement expression. // // If the parsed tokens consist of a primary-expression, the cases below - // call ParsePostfixExpressionSuffix to handle the postfix expression - // suffixes. Cases that cannot be followed by postfix exprs should - // return without invoking ParsePostfixExpressionSuffix. + // break out of the switch; at the end we call ParsePostfixExpressionSuffix + // to handle the postfix expression suffixes. Cases that cannot be followed + // by postfix exprs should return without invoking + // ParsePostfixExpressionSuffix. switch (SavedKind) { case tok::l_paren: { // If this expression is limited to being a unary-expression, the parent can // not start a cast expression. ParenParseOption ParenExprType = - isUnaryExpression ? CompoundLiteral : CastExpr; - TypeTy *CastTy; + (isUnaryExpression && !getLang().CPlusPlus)? CompoundLiteral : CastExpr; + ParsedType CastTy; SourceLocation LParenLoc = Tok.getLocation(); SourceLocation RParenLoc; @@ -597,8 +597,7 @@ Parser::OwningExprResult Parser::ParseCastExpression(bool isUnaryExpression, return move(Res); } - // These can be followed by postfix-expr pieces. - return ParsePostfixExpressionSuffix(move(Res)); + break; } // primary-expression @@ -608,9 +607,7 @@ Parser::OwningExprResult Parser::ParseCastExpression(bool isUnaryExpression, Res = Actions.ActOnNumericConstant(Tok); ConsumeToken(); - - // These can be followed by postfix-expr pieces. - return ParsePostfixExpressionSuffix(move(Res)); + break; case tok::kw_true: case tok::kw_false: @@ -661,9 +658,12 @@ Parser::OwningExprResult Parser::ParseCastExpression(bool isUnaryExpression, Res = Actions.ActOnClassPropertyRefExpr(II, PropertyName, ILoc, PropertyLoc); - // These can be followed by postfix-expr pieces. - return ParsePostfixExpressionSuffix(move(Res)); + break; } + + // Make sure to pass down the right value for isAddressOfOperand. + if (isAddressOfOperand && isPostfixExpressionSuffixStart()) + isAddressOfOperand = false; // Function designators are allowed to be undeclared (C99 6.5.1p2), so we // need to know whether or not this identifier is a function designator or @@ -672,29 +672,23 @@ Parser::OwningExprResult Parser::ParseCastExpression(bool isUnaryExpression, CXXScopeSpec ScopeSpec; Name.setIdentifier(&II, ILoc); Res = Actions.ActOnIdExpression(getCurScope(), ScopeSpec, Name, - Tok.is(tok::l_paren), false); - - // These can be followed by postfix-expr pieces. - return ParsePostfixExpressionSuffix(move(Res)); + Tok.is(tok::l_paren), isAddressOfOperand); + break; } case tok::char_constant: // constant: character-constant Res = Actions.ActOnCharacterConstant(Tok); ConsumeToken(); - // These can be followed by postfix-expr pieces. - return ParsePostfixExpressionSuffix(move(Res)); + break; case tok::kw___func__: // primary-expression: __func__ [C99 6.4.2.2] case tok::kw___FUNCTION__: // primary-expression: __FUNCTION__ [GNU] case tok::kw___PRETTY_FUNCTION__: // primary-expression: __P..Y_F..N__ [GNU] Res = Actions.ActOnPredefinedExpr(Tok.getLocation(), SavedKind); ConsumeToken(); - // These can be followed by postfix-expr pieces. - return ParsePostfixExpressionSuffix(move(Res)); + break; case tok::string_literal: // primary-expression: string-literal case tok::wide_string_literal: Res = ParseStringLiteralExpression(); - if (Res.isInvalid()) return move(Res); - // This can be followed by postfix-expr pieces (e.g. "foo"[1]). - return ParsePostfixExpressionSuffix(move(Res)); + break; case tok::kw___builtin_va_arg: case tok::kw___builtin_offsetof: case tok::kw___builtin_choose_expr: @@ -703,12 +697,16 @@ Parser::OwningExprResult Parser::ParseCastExpression(bool isUnaryExpression, case tok::kw___null: return Actions.ActOnGNUNullExpr(ConsumeToken()); break; - case tok::plusplus: // unary-expression: '++' unary-expression - case tok::minusminus: { // unary-expression: '--' unary-expression + case tok::plusplus: // unary-expression: '++' unary-expression [C99] + case tok::minusminus: { // unary-expression: '--' unary-expression [C99] + // C++ [expr.unary] has: + // unary-expression: + // ++ cast-expression + // -- cast-expression SourceLocation SavedLoc = ConsumeToken(); - Res = ParseCastExpression(true); + Res = ParseCastExpression(!getLang().CPlusPlus); if (!Res.isInvalid()) - Res = Actions.ActOnUnaryOp(getCurScope(), SavedLoc, SavedKind, move(Res)); + Res = Actions.ActOnUnaryOp(getCurScope(), SavedLoc, SavedKind, Res.get()); return move(Res); } case tok::amp: { // unary-expression: '&' cast-expression @@ -716,7 +714,7 @@ Parser::OwningExprResult Parser::ParseCastExpression(bool isUnaryExpression, SourceLocation SavedLoc = ConsumeToken(); Res = ParseCastExpression(false, true); if (!Res.isInvalid()) - Res = Actions.ActOnUnaryOp(getCurScope(), SavedLoc, SavedKind, move(Res)); + Res = Actions.ActOnUnaryOp(getCurScope(), SavedLoc, SavedKind, Res.get()); return move(Res); } @@ -730,7 +728,7 @@ Parser::OwningExprResult Parser::ParseCastExpression(bool isUnaryExpression, SourceLocation SavedLoc = ConsumeToken(); Res = ParseCastExpression(false); if (!Res.isInvalid()) - Res = Actions.ActOnUnaryOp(getCurScope(), SavedLoc, SavedKind, move(Res)); + Res = Actions.ActOnUnaryOp(getCurScope(), SavedLoc, SavedKind, Res.get()); return move(Res); } @@ -740,7 +738,7 @@ Parser::OwningExprResult Parser::ParseCastExpression(bool isUnaryExpression, SourceLocation SavedLoc = ConsumeToken(); Res = ParseCastExpression(false); if (!Res.isInvalid()) - Res = Actions.ActOnUnaryOp(getCurScope(), SavedLoc, SavedKind, move(Res)); + Res = Actions.ActOnUnaryOp(getCurScope(), SavedLoc, SavedKind, Res.get()); return move(Res); } case tok::kw_sizeof: // unary-expression: 'sizeof' unary-expression @@ -766,16 +764,13 @@ Parser::OwningExprResult Parser::ParseCastExpression(bool isUnaryExpression, case tok::kw_reinterpret_cast: case tok::kw_static_cast: Res = ParseCXXCasts(); - // These can be followed by postfix-expr pieces. - return ParsePostfixExpressionSuffix(move(Res)); + break; case tok::kw_typeid: Res = ParseCXXTypeid(); - // This can be followed by postfix-expr pieces. - return ParsePostfixExpressionSuffix(move(Res)); + break; case tok::kw_this: Res = ParseCXXThis(); - // This can be followed by postfix-expr pieces. - return ParsePostfixExpressionSuffix(move(Res)); + break; case tok::kw_char: case tok::kw_wchar_t: @@ -814,8 +809,7 @@ Parser::OwningExprResult Parser::ParseCastExpression(bool isUnaryExpression, << DS.getSourceRange()); Res = ParseCXXTypeConstructExpression(DS); - // This can be followed by postfix-expr pieces. - return ParsePostfixExpressionSuffix(move(Res)); + break; } case tok::annot_cxxscope: { // [C++] id-expression: qualified-id @@ -836,7 +830,7 @@ Parser::OwningExprResult Parser::ParseCastExpression(bool isUnaryExpression, // type, translate it into a type and continue parsing as a // cast expression. CXXScopeSpec SS; - ParseOptionalCXXScopeSpecifier(SS, /*ObjectType=*/0, false); + ParseOptionalCXXScopeSpecifier(SS, ParsedType(), false); AnnotateTemplateIdTokenAsType(&SS); return ParseCastExpression(isUnaryExpression, isAddressOfOperand, NotCastExpr, TypeOfCast); @@ -845,7 +839,7 @@ Parser::OwningExprResult Parser::ParseCastExpression(bool isUnaryExpression, // Parse as an id-expression. Res = ParseCXXIdExpression(isAddressOfOperand); - return ParsePostfixExpressionSuffix(move(Res)); + break; } case tok::annot_template_id: { // [C++] template-id @@ -865,7 +859,7 @@ Parser::OwningExprResult Parser::ParseCastExpression(bool isUnaryExpression, case tok::kw_operator: // [C++] id-expression: operator/conversion-function-id Res = ParseCXXIdExpression(isAddressOfOperand); - return ParsePostfixExpressionSuffix(move(Res)); + break; case tok::coloncolon: { // ::foo::bar -> global qualified name etc. If TryAnnotateTypeOrScopeToken @@ -906,6 +900,10 @@ Parser::OwningExprResult Parser::ParseCastExpression(bool isUnaryExpression, case tok::kw___has_trivial_copy: case tok::kw___has_trivial_assign: case tok::kw___has_trivial_destructor: + case tok::kw___has_nothrow_assign: + case tok::kw___has_nothrow_copy: + case tok::kw___has_nothrow_constructor: + case tok::kw___has_virtual_destructor: return ParseUnaryTypeTrait(); case tok::at: { @@ -915,7 +913,7 @@ Parser::OwningExprResult Parser::ParseCastExpression(bool isUnaryExpression, case tok::caret: return ParsePostfixExpressionSuffix(ParseBlockLiteralExpression()); case tok::code_completion: - Actions.CodeCompleteOrdinaryName(getCurScope(), Action::CCC_Expression); + Actions.CodeCompleteOrdinaryName(getCurScope(), Sema::PCC_Expression); ConsumeCodeCompletionToken(); return ParseCastExpression(isUnaryExpression, isAddressOfOperand, NotCastExpr, TypeOfCast); @@ -929,8 +927,9 @@ Parser::OwningExprResult Parser::ParseCastExpression(bool isUnaryExpression, return ExprError(); } - // unreachable. - abort(); + // These can be followed by postfix-expr pieces. + if (Res.isInvalid()) return move(Res); + return ParsePostfixExpressionSuffix(Res.get()); } /// ParsePostfixExpressionSuffix - Once the leading part of a postfix-expression @@ -951,8 +950,8 @@ Parser::OwningExprResult Parser::ParseCastExpression(bool isUnaryExpression, /// argument-expression /// argument-expression-list ',' assignment-expression /// -Parser::OwningExprResult -Parser::ParsePostfixExpressionSuffix(OwningExprResult LHS) { +ExprResult +Parser::ParsePostfixExpressionSuffix(ExprResult LHS) { // Now that the primary-expression piece of the postfix-expression has been // parsed, see if there are any postfix-expression pieces here. SourceLocation Loc; @@ -972,13 +971,13 @@ Parser::ParsePostfixExpressionSuffix(OwningExprResult LHS) { return move(LHS); Loc = ConsumeBracket(); - OwningExprResult Idx(ParseExpression()); + ExprResult Idx(ParseExpression()); SourceLocation RLoc = Tok.getLocation(); if (!LHS.isInvalid() && !Idx.isInvalid() && Tok.is(tok::r_square)) { - LHS = Actions.ActOnArraySubscriptExpr(getCurScope(), move(LHS), Loc, - move(Idx), RLoc); + LHS = Actions.ActOnArraySubscriptExpr(getCurScope(), LHS.take(), Loc, + Idx.take(), RLoc); } else LHS = ExprError(); @@ -1004,7 +1003,7 @@ Parser::ParsePostfixExpressionSuffix(OwningExprResult LHS) { } if (Tok.isNot(tok::r_paren)) { - if (ParseExpressionList(ArgExprs, CommaLocs, &Action::CodeCompleteCall, + if (ParseExpressionList(ArgExprs, CommaLocs, &Sema::CodeCompleteCall, LHS.get())) { SkipUntil(tok::r_paren); return ExprError(); @@ -1020,7 +1019,7 @@ Parser::ParsePostfixExpressionSuffix(OwningExprResult LHS) { if (!LHS.isInvalid()) { assert((ArgExprs.size() == 0 || ArgExprs.size()-1 == CommaLocs.size())&& "Unexpected number of commas!"); - LHS = Actions.ActOnCallExpr(getCurScope(), move(LHS), Loc, + LHS = Actions.ActOnCallExpr(getCurScope(), LHS.take(), Loc, move_arg(ArgExprs), CommaLocs.data(), Tok.getLocation()); } @@ -1036,10 +1035,10 @@ Parser::ParsePostfixExpressionSuffix(OwningExprResult LHS) { SourceLocation OpLoc = ConsumeToken(); // Eat the "." or "->" token. CXXScopeSpec SS; - Action::TypeTy *ObjectType = 0; + ParsedType ObjectType; bool MayBePseudoDestructor = false; if (getLang().CPlusPlus && !LHS.isInvalid()) { - LHS = Actions.ActOnStartCXXMemberReference(getCurScope(), move(LHS), + LHS = Actions.ActOnStartCXXMemberReference(getCurScope(), LHS.take(), OpLoc, OpKind, ObjectType, MayBePseudoDestructor); if (LHS.isInvalid()) @@ -1048,7 +1047,7 @@ Parser::ParsePostfixExpressionSuffix(OwningExprResult LHS) { ParseOptionalCXXScopeSpecifier(SS, ObjectType, false, &MayBePseudoDestructor); if (SS.isNotEmpty()) - ObjectType = 0; + ObjectType = ParsedType(); } if (Tok.is(tok::code_completion)) { @@ -1059,8 +1058,8 @@ Parser::ParsePostfixExpressionSuffix(OwningExprResult LHS) { ConsumeCodeCompletionToken(); } - if (MayBePseudoDestructor) { - LHS = ParseCXXPseudoDestructor(move(LHS), OpLoc, OpKind, SS, + if (MayBePseudoDestructor && !LHS.isInvalid()) { + LHS = ParseCXXPseudoDestructor(LHS.take(), OpLoc, OpKind, SS, ObjectType); break; } @@ -1080,7 +1079,7 @@ Parser::ParsePostfixExpressionSuffix(OwningExprResult LHS) { return ExprError(); if (!LHS.isInvalid()) - LHS = Actions.ActOnMemberAccessExpr(getCurScope(), move(LHS), OpLoc, + LHS = Actions.ActOnMemberAccessExpr(getCurScope(), LHS.take(), OpLoc, OpKind, SS, Name, ObjCImpDecl, Tok.is(tok::l_paren)); break; @@ -1089,7 +1088,7 @@ Parser::ParsePostfixExpressionSuffix(OwningExprResult LHS) { case tok::minusminus: // postfix-expression: postfix-expression '--' if (!LHS.isInvalid()) { LHS = Actions.ActOnPostfixUnaryOp(getCurScope(), Tok.getLocation(), - Tok.getKind(), move(LHS)); + Tok.getKind(), LHS.take()); } ConsumeToken(); break; @@ -1114,17 +1113,17 @@ Parser::ParsePostfixExpressionSuffix(OwningExprResult LHS) { /// typeof ( type-name ) /// [GNU/C++] typeof unary-expression /// -Parser::OwningExprResult +ExprResult Parser::ParseExprAfterTypeofSizeofAlignof(const Token &OpTok, bool &isCastExpr, - TypeTy *&CastTy, + ParsedType &CastTy, SourceRange &CastRange) { assert((OpTok.is(tok::kw_typeof) || OpTok.is(tok::kw_sizeof) || OpTok.is(tok::kw___alignof) || OpTok.is(tok::kw_alignof)) && "Not a typeof/sizeof/alignof expression!"); - OwningExprResult Operand(Actions); + ExprResult Operand; // If the operand doesn't start with an '(', it must be an expression. if (Tok.isNot(tok::l_paren)) { @@ -1141,7 +1140,7 @@ Parser::ParseExprAfterTypeofSizeofAlignof(const Token &OpTok, // The GNU typeof and alignof extensions also behave as unevaluated // operands. EnterExpressionEvaluationContext Unevaluated(Actions, - Action::Unevaluated); + Sema::Unevaluated); Operand = ParseCastExpression(true/*isUnaryExpression*/); } else { // If it starts with a '(', we know that it is either a parenthesized @@ -1158,10 +1157,9 @@ Parser::ParseExprAfterTypeofSizeofAlignof(const Token &OpTok, // The GNU typeof and alignof extensions also behave as unevaluated // operands. EnterExpressionEvaluationContext Unevaluated(Actions, - Action::Unevaluated); + Sema::Unevaluated); Operand = ParseParenExpression(ExprType, true/*stopIfCastExpr*/, - 0/*TypeOfCast*/, - CastTy, RParenLoc); + ParsedType(), CastTy, RParenLoc); CastRange = SourceRange(LParenLoc, RParenLoc); // If ParseParenExpression parsed a '(typename)' sequence only, then this is @@ -1171,10 +1169,14 @@ Parser::ParseExprAfterTypeofSizeofAlignof(const Token &OpTok, return ExprEmpty(); } - // If this is a parenthesized expression, it is the start of a - // unary-expression, but doesn't include any postfix pieces. Parse these - // now if present. - Operand = ParsePostfixExpressionSuffix(move(Operand)); + if (getLang().CPlusPlus || OpTok.isNot(tok::kw_typeof)) { + // GNU typeof in C requires the expression to be parenthesized. Not so for + // sizeof/alignof or in C++. Therefore, the parenthesized expression is + // the start of a unary-expression, but doesn't include any postfix + // pieces. Parse these now if present. + if (!Operand.isInvalid()) + Operand = ParsePostfixExpressionSuffix(Operand.get()); + } } // If we get here, the operand to the typeof/sizeof/alignof was an expresion. @@ -1190,7 +1192,7 @@ Parser::ParseExprAfterTypeofSizeofAlignof(const Token &OpTok, /// [GNU] '__alignof' unary-expression /// [GNU] '__alignof' '(' type-name ')' /// [C++0x] 'alignof' '(' type-id ')' -Parser::OwningExprResult Parser::ParseSizeofAlignofExpression() { +ExprResult Parser::ParseSizeofAlignofExpression() { assert((Tok.is(tok::kw_sizeof) || Tok.is(tok::kw___alignof) || Tok.is(tok::kw_alignof)) && "Not a sizeof/alignof expression!"); @@ -1198,9 +1200,9 @@ Parser::OwningExprResult Parser::ParseSizeofAlignofExpression() { ConsumeToken(); bool isCastExpr; - TypeTy *CastTy; + ParsedType CastTy; SourceRange CastRange; - OwningExprResult Operand = ParseExprAfterTypeofSizeofAlignof(OpTok, + ExprResult Operand = ParseExprAfterTypeofSizeofAlignof(OpTok, isCastExpr, CastTy, CastRange); @@ -1208,7 +1210,8 @@ Parser::OwningExprResult Parser::ParseSizeofAlignofExpression() { if (isCastExpr) return Actions.ActOnSizeOfAlignOfExpr(OpTok.getLocation(), OpTok.is(tok::kw_sizeof), - /*isType=*/true, CastTy, + /*isType=*/true, + CastTy.getAsOpaquePtr(), CastRange); // If we get here, the operand to the sizeof/alignof was an expresion. @@ -1234,8 +1237,8 @@ Parser::OwningExprResult Parser::ParseSizeofAlignofExpression() { /// [GNU] offsetof-member-designator '.' identifier /// [GNU] offsetof-member-designator '[' expression ']' /// -Parser::OwningExprResult Parser::ParseBuiltinPrimaryExpression() { - OwningExprResult Res(Actions); +ExprResult Parser::ParseBuiltinPrimaryExpression() { + ExprResult Res; const IdentifierInfo *BuiltinII = Tok.getIdentifierInfo(); tok::TokenKind T = Tok.getKind(); @@ -1252,7 +1255,7 @@ Parser::OwningExprResult Parser::ParseBuiltinPrimaryExpression() { switch (T) { default: assert(0 && "Not a builtin primary expression!"); case tok::kw___builtin_va_arg: { - OwningExprResult Expr(ParseAssignmentExpression()); + ExprResult Expr(ParseAssignmentExpression()); if (Expr.isInvalid()) { SkipUntil(tok::r_paren); return ExprError(); @@ -1270,7 +1273,7 @@ Parser::OwningExprResult Parser::ParseBuiltinPrimaryExpression() { if (Ty.isInvalid()) Res = ExprError(); else - Res = Actions.ActOnVAArg(StartLoc, move(Expr), Ty.get(), ConsumeParen()); + Res = Actions.ActOnVAArg(StartLoc, Expr.take(), Ty.get(), ConsumeParen()); break; } case tok::kw___builtin_offsetof: { @@ -1292,9 +1295,9 @@ Parser::OwningExprResult Parser::ParseBuiltinPrimaryExpression() { } // Keep track of the various subcomponents we see. - llvm::SmallVector<Action::OffsetOfComponent, 4> Comps; + llvm::SmallVector<Sema::OffsetOfComponent, 4> Comps; - Comps.push_back(Action::OffsetOfComponent()); + Comps.push_back(Sema::OffsetOfComponent()); Comps.back().isBrackets = false; Comps.back().U.IdentInfo = Tok.getIdentifierInfo(); Comps.back().LocStart = Comps.back().LocEnd = ConsumeToken(); @@ -1303,7 +1306,7 @@ Parser::OwningExprResult Parser::ParseBuiltinPrimaryExpression() { while (1) { if (Tok.is(tok::period)) { // offsetof-member-designator: offsetof-member-designator '.' identifier - Comps.push_back(Action::OffsetOfComponent()); + Comps.push_back(Sema::OffsetOfComponent()); Comps.back().isBrackets = false; Comps.back().LocStart = ConsumeToken(); @@ -1317,7 +1320,7 @@ Parser::OwningExprResult Parser::ParseBuiltinPrimaryExpression() { } else if (Tok.is(tok::l_square)) { // offsetof-member-designator: offsetof-member-design '[' expression ']' - Comps.push_back(Action::OffsetOfComponent()); + Comps.push_back(Sema::OffsetOfComponent()); Comps.back().isBrackets = true; Comps.back().LocStart = ConsumeBracket(); Res = ParseExpression(); @@ -1346,7 +1349,7 @@ Parser::OwningExprResult Parser::ParseBuiltinPrimaryExpression() { break; } case tok::kw___builtin_choose_expr: { - OwningExprResult Cond(ParseAssignmentExpression()); + ExprResult Cond(ParseAssignmentExpression()); if (Cond.isInvalid()) { SkipUntil(tok::r_paren); return move(Cond); @@ -1354,7 +1357,7 @@ Parser::OwningExprResult Parser::ParseBuiltinPrimaryExpression() { if (ExpectAndConsume(tok::comma, diag::err_expected_comma, "",tok::r_paren)) return ExprError(); - OwningExprResult Expr1(ParseAssignmentExpression()); + ExprResult Expr1(ParseAssignmentExpression()); if (Expr1.isInvalid()) { SkipUntil(tok::r_paren); return move(Expr1); @@ -1362,7 +1365,7 @@ Parser::OwningExprResult Parser::ParseBuiltinPrimaryExpression() { if (ExpectAndConsume(tok::comma, diag::err_expected_comma, "",tok::r_paren)) return ExprError(); - OwningExprResult Expr2(ParseAssignmentExpression()); + ExprResult Expr2(ParseAssignmentExpression()); if (Expr2.isInvalid()) { SkipUntil(tok::r_paren); return move(Expr2); @@ -1371,8 +1374,8 @@ Parser::OwningExprResult Parser::ParseBuiltinPrimaryExpression() { Diag(Tok, diag::err_expected_rparen); return ExprError(); } - Res = Actions.ActOnChooseExpr(StartLoc, move(Cond), move(Expr1), - move(Expr2), ConsumeParen()); + Res = Actions.ActOnChooseExpr(StartLoc, Cond.take(), Expr1.take(), + Expr2.take(), ConsumeParen()); break; } case tok::kw___builtin_types_compatible_p: @@ -1396,9 +1399,12 @@ Parser::OwningExprResult Parser::ParseBuiltinPrimaryExpression() { break; } + if (Res.isInvalid()) + return ExprError(); + // These can be followed by postfix-expr pieces because they are // primary-expressions. - return ParsePostfixExpressionSuffix(move(Res)); + return ParsePostfixExpressionSuffix(Res.take()); } /// ParseParenExpression - This parses the unit that starts with a '(' token, @@ -1415,25 +1421,25 @@ Parser::OwningExprResult Parser::ParseBuiltinPrimaryExpression() { /// cast-expression: [C99 6.5.4] /// '(' type-name ')' cast-expression /// -Parser::OwningExprResult +ExprResult Parser::ParseParenExpression(ParenParseOption &ExprType, bool stopIfCastExpr, - TypeTy *TypeOfCast, TypeTy *&CastTy, + ParsedType TypeOfCast, ParsedType &CastTy, SourceLocation &RParenLoc) { assert(Tok.is(tok::l_paren) && "Not a paren expr!"); GreaterThanIsOperatorScope G(GreaterThanIsOperator, true); SourceLocation OpenLoc = ConsumeParen(); - OwningExprResult Result(Actions, true); + ExprResult Result(true); bool isAmbiguousTypeId; - CastTy = 0; + CastTy = ParsedType(); if (ExprType >= CompoundStmt && Tok.is(tok::l_brace)) { Diag(Tok, diag::ext_gnu_statement_expr); - OwningStmtResult Stmt(ParseCompoundStatement(0, true)); + StmtResult Stmt(ParseCompoundStatement(0, true)); ExprType = CompoundStmt; // If the substmt parsed correctly, build the AST node. if (!Stmt.isInvalid() && Tok.is(tok::r_paren)) - Result = Actions.ActOnStmtExpr(OpenLoc, move(Stmt), Tok.getLocation()); + Result = Actions.ActOnStmtExpr(OpenLoc, Stmt.take(), Tok.getLocation()); } else if (ExprType >= CompoundLiteral && isTypeIdInParens(isAmbiguousTypeId)) { @@ -1473,7 +1479,7 @@ Parser::ParseParenExpression(ParenParseOption &ExprType, bool stopIfCastExpr, // Note that this doesn't parse the subsequent cast-expression, it just // returns the parsed type to the callee. if (stopIfCastExpr) - return OwningExprResult(Actions); + return ExprResult(); // Reject the cast of super idiom in ObjC. if (Tok.is(tok::identifier) && getLang().ObjC1 && @@ -1490,7 +1496,7 @@ Parser::ParseParenExpression(ParenParseOption &ExprType, bool stopIfCastExpr, Result = ParseCastExpression(false, false, CastTy); if (!Result.isInvalid()) Result = Actions.ActOnCastExpr(getCurScope(), OpenLoc, CastTy, RParenLoc, - move(Result)); + Result.take()); return move(Result); } @@ -1510,7 +1516,7 @@ Parser::ParseParenExpression(ParenParseOption &ExprType, bool stopIfCastExpr, Result = ParseExpression(); ExprType = SimpleExpr; if (!Result.isInvalid() && Tok.is(tok::r_paren)) - Result = Actions.ActOnParenExpr(OpenLoc, Tok.getLocation(), move(Result)); + Result = Actions.ActOnParenExpr(OpenLoc, Tok.getLocation(), Result.take()); } // Match the ')'. @@ -1534,16 +1540,16 @@ Parser::ParseParenExpression(ParenParseOption &ExprType, bool stopIfCastExpr, /// '(' type-name ')' '{' initializer-list '}' /// '(' type-name ')' '{' initializer-list ',' '}' /// -Parser::OwningExprResult -Parser::ParseCompoundLiteralExpression(TypeTy *Ty, +ExprResult +Parser::ParseCompoundLiteralExpression(ParsedType Ty, SourceLocation LParenLoc, SourceLocation RParenLoc) { assert(Tok.is(tok::l_brace) && "Not a compound literal!"); if (!getLang().C99) // Compound literals don't exist in C90. Diag(LParenLoc, diag::ext_c99_compound_literal); - OwningExprResult Result = ParseInitializer(); + ExprResult Result = ParseInitializer(); if (!Result.isInvalid() && Ty) - return Actions.ActOnCompoundLiteral(LParenLoc, Ty, RParenLoc, move(Result)); + return Actions.ActOnCompoundLiteral(LParenLoc, Ty, RParenLoc, Result.take()); return move(Result); } @@ -1553,7 +1559,7 @@ Parser::ParseCompoundLiteralExpression(TypeTy *Ty, /// /// primary-expression: [C99 6.5.1] /// string-literal -Parser::OwningExprResult Parser::ParseStringLiteralExpression() { +ExprResult Parser::ParseStringLiteralExpression() { assert(isTokenStringLiteral() && "Not a string literal!"); // String concat. Note that keywords like __func__ and __FUNCTION__ are not @@ -1579,12 +1585,13 @@ Parser::OwningExprResult Parser::ParseStringLiteralExpression() { /// [C++] assignment-expression /// [C++] expression-list , assignment-expression /// -bool Parser::ParseExpressionList(ExprListTy &Exprs, CommaLocsTy &CommaLocs, - void (Action::*Completer)(Scope *S, - void *Data, - ExprTy **Args, +bool Parser::ParseExpressionList(llvm::SmallVectorImpl<Expr*> &Exprs, + llvm::SmallVectorImpl<SourceLocation> &CommaLocs, + void (Sema::*Completer)(Scope *S, + Expr *Data, + Expr **Args, unsigned NumArgs), - void *Data) { + Expr *Data) { while (1) { if (Tok.is(tok::code_completion)) { if (Completer) @@ -1592,7 +1599,7 @@ bool Parser::ParseExpressionList(ExprListTy &Exprs, CommaLocsTy &CommaLocs, ConsumeCodeCompletionToken(); } - OwningExprResult Expr(ParseAssignmentExpression()); + ExprResult Expr(ParseAssignmentExpression()); if (Expr.isInvalid()) return true; @@ -1642,7 +1649,7 @@ void Parser::ParseBlockId() { /// [clang] block-args: /// [clang] '(' parameter-list ')' /// -Parser::OwningExprResult Parser::ParseBlockLiteralExpression() { +ExprResult Parser::ParseBlockLiteralExpression() { assert(Tok.is(tok::caret) && "block literal starts with ^"); SourceLocation CaretLoc = ConsumeToken(); @@ -1717,7 +1724,7 @@ Parser::OwningExprResult Parser::ParseBlockLiteralExpression() { } - OwningExprResult Result(Actions, true); + ExprResult Result(true); if (!Tok.is(tok::l_brace)) { // Saw something like: ^expr Diag(Tok, diag::err_expected_expression); @@ -1725,9 +1732,9 @@ Parser::OwningExprResult Parser::ParseBlockLiteralExpression() { return ExprError(); } - OwningStmtResult Stmt(ParseCompoundStatementBody()); + StmtResult Stmt(ParseCompoundStatementBody()); if (!Stmt.isInvalid()) - Result = Actions.ActOnBlockStmtExpr(CaretLoc, move(Stmt), getCurScope()); + Result = Actions.ActOnBlockStmtExpr(CaretLoc, Stmt.take(), getCurScope()); else Actions.ActOnBlockError(CaretLoc, getCurScope()); return move(Result); |
