diff --git a/clang/AST/Sema.cpp b/clang/AST/Sema.cpp index e6b09c8abb23..f42ec104bad4 100644 --- a/clang/AST/Sema.cpp +++ b/clang/AST/Sema.cpp @@ -139,7 +139,9 @@ ASTBuilder::ParseDeclarator(Scope *S, Declarator &D, ExprTy *Init, Action::DeclTy * ASTBuilder::ParseFunctionDefinition(Scope *S, Declarator &D, StmtTy *Body) { FunctionDecl *FD = (FunctionDecl *)ParseDeclarator(S, D, 0, 0); - // TODO: more stuff. + + FD->setBody((Stmt*)Body); + return FD; } diff --git a/clang/Parse/ParseStmt.cpp b/clang/Parse/ParseStmt.cpp index 063e86b9ad81..a7cc67fe189a 100644 --- a/clang/Parse/ParseStmt.cpp +++ b/clang/Parse/ParseStmt.cpp @@ -68,10 +68,10 @@ using namespace clang; /// [OBC] '@' 'throw' expression ';' [TODO] /// [OBC] '@' 'throw' ';' [TODO] /// -void Parser::ParseStatementOrDeclaration(bool OnlyStatement) { +Parser::StmtResult Parser::ParseStatementOrDeclaration(bool OnlyStatement) { const char *SemiError = 0; + Parser::StmtResult Res; -ParseNextStatement: // Cases in this switch statement should fall through if the parser expects // the token to end in a semicolon (in which case SemiError should be set), // or they directly 'return;' if not. @@ -86,9 +86,11 @@ ParseNextStatement: if (!OnlyStatement && isDeclarationSpecifier()) { // TODO: warn/disable if declaration is in the middle of a block and !C99. ParseDeclaration(Declarator::BlockContext); - return; + // FIXME: Make a DeclStmt node! + return 0; } else if (Tok.getKind() == tok::r_brace) { Diag(Tok, diag::err_expected_statement); + return true; } else { // expression[opt] ';' ExprResult Res = ParseExpression(); @@ -97,71 +99,59 @@ ParseNextStatement: // doing this opens us up to the possibility of infinite loops if // ParseExpression does not consume any tokens. SkipUntil(tok::semi); + return true; + } else { + return Actions.ParseExprStmt(Res.Val); } } - return; case tok::kw_case: // C99 6.8.1: labeled-statement - ParseCaseStatement(); - if (Tok.getKind() == tok::r_brace) { - Diag(Tok, diag::err_label_end_of_compound_statement); - return; - } - OnlyStatement = true; - goto ParseNextStatement; + return ParseCaseStatement(); case tok::kw_default: // C99 6.8.1: labeled-statement - ParseDefaultStatement(); - if (Tok.getKind() == tok::r_brace) { - Diag(Tok, diag::err_label_end_of_compound_statement); - return; - } - OnlyStatement = true; - goto ParseNextStatement; + return ParseDefaultStatement(); case tok::l_brace: // C99 6.8.2: compound-statement - ParseCompoundStatement(); - return; + return ParseCompoundStatement(); case tok::semi: // C99 6.8.3: expression[opt] ';' + // TODO: Could return a NullStmt action result if we cared to. ConsumeToken(); - return; + return 0; case tok::kw_if: // C99 6.8.4.1: if-statement - ParseIfStatement(); - return; + return ParseIfStatement(); case tok::kw_switch: // C99 6.8.4.2: switch-statement - ParseSwitchStatement(); - return; + return ParseSwitchStatement(); case tok::kw_while: // C99 6.8.5.1: while-statement - ParseWhileStatement(); - return; + return ParseWhileStatement(); case tok::kw_do: // C99 6.8.5.2: do-statement - ParseDoStatement(); + Res = ParseDoStatement(); SemiError = "do/while loop"; break; case tok::kw_for: // C99 6.8.5.3: for-statement - ParseForStatement(); - return; + return ParseForStatement(); case tok::kw_goto: // C99 6.8.6.1: goto-statement - ParseGotoStatement(); + Res = ParseGotoStatement(); SemiError = "goto statement"; break; case tok::kw_continue: // C99 6.8.6.2: continue-statement + Res = Actions.ParseContinueStmt(Tok.getLocation()); ConsumeToken(); // eat the 'continue'. SemiError = "continue statement"; break; case tok::kw_break: // C99 6.8.6.3: break-statement + Res = Actions.ParseBreakStmt(Tok.getLocation()); ConsumeToken(); // eat the 'break'. SemiError = "break statement"; break; case tok::kw_return: // C99 6.8.6.4: return-statement - ParseReturnStatement(); + Res = ParseReturnStatement(); SemiError = "return statement"; break; case tok::kw_asm: - ParseAsmStatement(); + Res = ParseAsmStatement(); SemiError = "asm statement"; break; } @@ -173,6 +163,7 @@ ParseNextStatement: Diag(Tok, diag::err_expected_semi_after, SemiError); SkipUntil(tok::semi); } + return Res; } /// ParseIdentifierStatement - Because we don't have two-token lookahead, we @@ -187,26 +178,31 @@ ParseNextStatement: /// declaration (if !OnlyStatement) /// expression[opt] ';' /// -void Parser::ParseIdentifierStatement(bool OnlyStatement) { +Parser::StmtResult Parser::ParseIdentifierStatement(bool OnlyStatement) { IdentifierInfo *II = Tok.getIdentifierInfo(); assert(Tok.getKind() == tok::identifier && II && "Not an identifier!"); - LexerToken IdentTok = Tok; // Save the token. + LexerToken IdentTok = Tok; // Save the whole token. ConsumeToken(); // eat the identifier. // identifier ':' statement if (Tok.getKind() == tok::colon) { + SourceLocation ColonLoc = Tok.getLocation(); ConsumeToken(); // Read label attributes, if present. if (Tok.getKind() == tok::kw___attribute) + // TODO: save these somewhere. ParseAttributes(); - ParseStatement(); - return; + StmtResult SubStmt = ParseStatement(); + if (SubStmt.isInvalid) return true; + + // FIXME: Enter this label into the symbol table for the function. + return Actions.ParseLabelStmt(IdentTok, ColonLoc, SubStmt.Val); } - // declaration + // Check to see if this is a declaration. if (!OnlyStatement && Actions.isTypedefName(*IdentTok.getIdentifierInfo(), CurScope)) { // Handle this. Warn/disable if in middle of block and !C99. @@ -223,7 +219,8 @@ void Parser::ParseIdentifierStatement(bool OnlyStatement) { // if (!DS.isMissingDeclaratorOk()) Diag(...); ConsumeToken(); - return; + // FIXME: Return this as a type decl. + return 0; } // Parse all the declarators. @@ -231,18 +228,22 @@ void Parser::ParseIdentifierStatement(bool OnlyStatement) { ParseDeclarator(DeclaratorInfo); ParseInitDeclaratorListAfterFirstDeclarator(DeclaratorInfo); - return; + // FIXME: Return this as a declstmt. + return 0; } // Otherwise, this is an expression. Seed it with II and parse it. ExprResult Res = ParseExpressionWithLeadingIdentifier(IdentTok); - if (Res.isInvalid) + if (Res.isInvalid) { SkipUntil(tok::semi); - else if (Tok.getKind() == tok::semi) - ConsumeToken(); - else { + return true; + } else if (Tok.getKind() != tok::semi) { Diag(Tok, diag::err_expected_semi_after, "expression"); SkipUntil(tok::semi); + return true; + } else { + ConsumeToken(); + return Actions.ParseExprStmt(Res.Val); } } @@ -253,17 +254,20 @@ void Parser::ParseIdentifierStatement(bool OnlyStatement) { /// /// Note that this does not parse the 'statement' at the end. /// -void Parser::ParseCaseStatement() { +Parser::StmtResult Parser::ParseCaseStatement() { assert(Tok.getKind() == tok::kw_case && "Not a case stmt!"); + SourceLocation CaseLoc = Tok.getLocation(); ConsumeToken(); // eat the 'case'. - ExprResult Res = ParseConstantExpression(); - if (Res.isInvalid) { + ExprResult LHS = ParseConstantExpression(); + if (LHS.isInvalid) { SkipUntil(tok::colon); - return; + return true; } // GNU case range extension. + SourceLocation DotDotDotLoc; + ExprTy *RHSVal = 0; if (Tok.getKind() == tok::ellipsis) { Diag(Tok, diag::ext_gnu_case_range); ConsumeToken(); @@ -271,16 +275,33 @@ void Parser::ParseCaseStatement() { ExprResult RHS = ParseConstantExpression(); if (RHS.isInvalid) { SkipUntil(tok::colon); - return; + return true; } + RHSVal = RHS.Val; } - if (Tok.getKind() == tok::colon) { - ConsumeToken(); - } else { + if (Tok.getKind() != tok::colon) { Diag(Tok, diag::err_expected_colon_after, "'case'"); SkipUntil(tok::colon); + return true; } + + SourceLocation ColonLoc = Tok.getLocation(); + ConsumeToken(); + + // Diagnose the common error "switch (X) { case 4: }", which is not valid. + if (Tok.getKind() == tok::r_brace) { + Diag(Tok, diag::err_label_end_of_compound_statement); + return true; + } + + StmtResult SubStmt = ParseStatement(); + if (SubStmt.isInvalid) + return true; + + // TODO: look up enclosing switch stmt. + return Actions.ParseCaseStmt(CaseLoc, LHS.Val, DotDotDotLoc, RHSVal, ColonLoc, + SubStmt.Val); } /// ParseDefaultStatement @@ -288,16 +309,32 @@ void Parser::ParseCaseStatement() { /// 'default' ':' statement /// Note that this does not parse the 'statement' at the end. /// -void Parser::ParseDefaultStatement() { +Parser::StmtResult Parser::ParseDefaultStatement() { assert(Tok.getKind() == tok::kw_default && "Not a default stmt!"); + SourceLocation DefaultLoc = Tok.getLocation(); ConsumeToken(); // eat the 'default'. - if (Tok.getKind() == tok::colon) { - ConsumeToken(); - } else { + if (Tok.getKind() != tok::colon) { Diag(Tok, diag::err_expected_colon_after, "'default'"); SkipUntil(tok::colon); + return true; } + + SourceLocation ColonLoc = Tok.getLocation(); + ConsumeToken(); + + // Diagnose the common error "switch (X) {... default: }", which is not valid. + if (Tok.getKind() == tok::r_brace) { + Diag(Tok, diag::err_label_end_of_compound_statement); + return true; + } + + StmtResult SubStmt = ParseStatement(); + if (SubStmt.isInvalid) + return true; + + // TODO: look up enclosing switch stmt. + return Actions.ParseDefaultStmt(DefaultLoc, ColonLoc, SubStmt.Val); } @@ -327,122 +364,162 @@ void Parser::ParseDefaultStatement() { /// [OMP] openmp-directive: [TODO] /// [OMP] barrier-directive /// [OMP] flush-directive -void Parser::ParseCompoundStatement() { +/// +Parser::StmtResult Parser::ParseCompoundStatement() { assert(Tok.getKind() == tok::l_brace && "Not a compount stmt!"); + SourceLocation LBraceLoc = Tok.getLocation(); ConsumeBrace(); // eat the '{'. - while (Tok.getKind() != tok::r_brace && Tok.getKind() != tok::eof) - ParseStatementOrDeclaration(false); + SmallVector Stmts; + while (Tok.getKind() != tok::r_brace && Tok.getKind() != tok::eof) { + StmtResult R = ParseStatementOrDeclaration(false); + if (!R.isInvalid && R.Val) + Stmts.push_back(R.Val); + } // We broke out of the while loop because we found a '}' or EOF. - if (Tok.getKind() == tok::r_brace) - ConsumeBrace(); - else + if (Tok.getKind() != tok::r_brace) { Diag(Tok, diag::err_expected_rbrace); + return 0; + } + + SourceLocation RBraceLoc = Tok.getLocation(); + ConsumeBrace(); + return Actions.ParseCompoundStmt(LBraceLoc, RBraceLoc, + &Stmts[0], Stmts.size()); } /// ParseIfStatement /// if-statement: [C99 6.8.4.1] /// 'if' '(' expression ')' statement /// 'if' '(' expression ')' statement 'else' statement -void Parser::ParseIfStatement() { +/// +Parser::StmtResult Parser::ParseIfStatement() { assert(Tok.getKind() == tok::kw_if && "Not an if stmt!"); + SourceLocation IfLoc = Tok.getLocation(); ConsumeToken(); // eat the 'if'. if (Tok.getKind() != tok::l_paren) { Diag(Tok, diag::err_expected_lparen_after, "if"); SkipUntil(tok::semi); - return; + return true; } // Parse the condition. - ParseSimpleParenExpression(); + ExprResult CondExp = ParseSimpleParenExpression(); + if (CondExp.isInvalid) { + SkipUntil(tok::semi); + return true; + } // Read the if condition. - ParseStatement(); + StmtResult CondStmt = ParseStatement(); // If it has an else, parse it. + SourceLocation ElseLoc; + StmtResult ElseStmt(false); if (Tok.getKind() == tok::kw_else) { + ElseLoc = Tok.getLocation(); ConsumeToken(); - ParseStatement(); + ElseStmt = ParseStatement(); } + + if (CondStmt.isInvalid || ElseStmt.isInvalid) + return true; + + return Actions.ParseIfStmt(IfLoc, CondExp.Val, CondStmt.Val, + ElseLoc, ElseStmt.Val); } /// ParseSwitchStatement /// switch-statement: /// 'switch' '(' expression ')' statement -void Parser::ParseSwitchStatement() { +Parser::StmtResult Parser::ParseSwitchStatement() { assert(Tok.getKind() == tok::kw_switch && "Not a switch stmt!"); + SourceLocation SwitchLoc = Tok.getLocation(); ConsumeToken(); // eat the 'switch'. if (Tok.getKind() != tok::l_paren) { Diag(Tok, diag::err_expected_lparen_after, "switch"); SkipUntil(tok::semi); - return; + return true; } // Parse the condition. - ParseSimpleParenExpression(); + ExprResult Cond = ParseSimpleParenExpression(); // Read the body statement. - ParseStatement(); + StmtResult Body = ParseStatement(); + + if (Cond.isInvalid || Body.isInvalid) return true; + + return Actions.ParseSwitchStmt(SwitchLoc, Cond.Val, Body.Val); } /// ParseWhileStatement /// while-statement: [C99 6.8.5.1] /// 'while' '(' expression ')' statement -void Parser::ParseWhileStatement() { +Parser::StmtResult Parser::ParseWhileStatement() { assert(Tok.getKind() == tok::kw_while && "Not a while stmt!"); + SourceLocation WhileLoc = Tok.getLocation(); ConsumeToken(); // eat the 'while'. if (Tok.getKind() != tok::l_paren) { Diag(Tok, diag::err_expected_lparen_after, "while"); SkipUntil(tok::semi); - return; + return true; } // Parse the condition. - ParseSimpleParenExpression(); + ExprResult Cond = ParseSimpleParenExpression(); // Read the body statement. - ParseStatement(); + StmtResult Body = ParseStatement(); + + if (Cond.isInvalid || Body.isInvalid) return true; + + return Actions.ParseWhileStmt(WhileLoc, Cond.Val, Body.Val); } /// ParseDoStatement /// do-statement: [C99 6.8.5.2] /// 'do' statement 'while' '(' expression ')' ';' /// Note: this lets the caller parse the end ';'. -void Parser::ParseDoStatement() { +Parser::StmtResult Parser::ParseDoStatement() { assert(Tok.getKind() == tok::kw_do && "Not a do stmt!"); SourceLocation DoLoc = Tok.getLocation(); ConsumeToken(); // eat the 'do'. // Read the body statement. - ParseStatement(); + StmtResult Body = ParseStatement(); if (Tok.getKind() != tok::kw_while) { Diag(Tok, diag::err_expected_while); Diag(DoLoc, diag::err_matching, "do"); SkipUntil(tok::semi); - return; + return true; } + SourceLocation WhileLoc = Tok.getLocation(); ConsumeToken(); if (Tok.getKind() != tok::l_paren) { Diag(Tok, diag::err_expected_lparen_after, "do/while"); SkipUntil(tok::semi); - return; + return true; } // Parse the condition. - ParseSimpleParenExpression(); + ExprResult Cond = ParseSimpleParenExpression(); + if (Cond.isInvalid || Body.isInvalid) return true; + + return Actions.ParseDoStmt(DoLoc, Body.Val, WhileLoc, Cond.Val); } /// ParseForStatement /// for-statement: [C99 6.8.5.3] /// 'for' '(' expr[opt] ';' expr[opt] ';' expr[opt] ')' statement /// 'for' '(' declaration expr[opt] ';' expr[opt] ')' statement -void Parser::ParseForStatement() { +Parser::StmtResult Parser::ParseForStatement() { assert(Tok.getKind() == tok::kw_for && "Not a for stmt!"); SourceLocation ForLoc = Tok.getLocation(); ConsumeToken(); // eat the 'for'. @@ -450,7 +527,7 @@ void Parser::ParseForStatement() { if (Tok.getKind() != tok::l_paren) { Diag(Tok, diag::err_expected_lparen_after, "for"); SkipUntil(tok::semi); - return; + return true; } SourceLocation LParenLoc = Tok.getLocation(); @@ -506,6 +583,9 @@ void Parser::ParseForStatement() { // Read the body statement. ParseStatement(); + + // FIXME: ACTION FOR FOR STMT. + return false; } /// ParseGotoStatement @@ -515,34 +595,47 @@ void Parser::ParseForStatement() { /// /// Note: this lets the caller parse the end ';'. /// -void Parser::ParseGotoStatement() { +Parser::StmtResult Parser::ParseGotoStatement() { assert(Tok.getKind() == tok::kw_goto && "Not a goto stmt!"); + SourceLocation GotoLoc; ConsumeToken(); // eat the 'goto'. + StmtResult Res; if (Tok.getKind() == tok::identifier) { + Res = Actions.ParseGotoStmt(GotoLoc, Tok); ConsumeToken(); } else if (Tok.getKind() == tok::star && !getLang().NoExtensions) { // GNU indirect goto extension. Diag(Tok, diag::ext_gnu_indirect_goto); + SourceLocation StarLoc = Tok.getLocation(); ConsumeToken(); ExprResult R = ParseExpression(); - if (R.isInvalid) // Skip to the semicolon, but don't consume it. + if (R.isInvalid) { // Skip to the semicolon, but don't consume it. SkipUntil(tok::semi, false, true); + return true; + } + Res = Actions.ParseIndirectGotoStmt(GotoLoc, StarLoc, R.Val); } + return Res; } /// ParseReturnStatement /// jump-statement: /// 'return' expression[opt] ';' -void Parser::ParseReturnStatement() { +Parser::StmtResult Parser::ParseReturnStatement() { assert(Tok.getKind() == tok::kw_return && "Not a return stmt!"); + SourceLocation ReturnLoc = Tok.getLocation(); ConsumeToken(); // eat the 'return'. + ExprResult R(0); if (Tok.getKind() != tok::semi) { - ExprResult R = ParseExpression(); - if (R.isInvalid) // Skip to the semicolon, but don't consume it. + R = ParseExpression(); + if (R.isInvalid) { // Skip to the semicolon, but don't consume it. SkipUntil(tok::semi, false, true); + return true; + } } + return Actions.ParseReturnStmt(ReturnLoc, R.Val); } /// ParseAsmStatement - Parse a GNU extended asm statement. @@ -560,7 +653,7 @@ void Parser::ParseReturnStatement() { /// asm-string-literal /// asm-clobbers ',' asm-string-literal /// -void Parser::ParseAsmStatement() { +Parser::StmtResult Parser::ParseAsmStatement() { assert(Tok.getKind() == tok::kw_asm && "Not an asm stmt"); ConsumeToken(); @@ -580,7 +673,7 @@ void Parser::ParseAsmStatement() { if (Tok.getKind() != tok::l_paren) { Diag(Tok, diag::err_expected_lparen_after, "asm"); SkipUntil(tok::r_paren); - return; + return true; } Loc = Tok.getLocation(); ConsumeParen(); @@ -609,6 +702,9 @@ void Parser::ParseAsmStatement() { } MatchRHSPunctuation(tok::r_paren, Loc); + + // FIXME: Implement action for asm parsing. + return false; } /// ParseAsmOperands - Parse the asm-operands production as used by diff --git a/clang/Parse/Parser.cpp b/clang/Parse/Parser.cpp index ed95cbcbc095..a7fd2f39f4f2 100644 --- a/clang/Parse/Parser.cpp +++ b/clang/Parse/Parser.cpp @@ -397,12 +397,12 @@ Parser::DeclTy *Parser::ParseFunctionDefinition(Declarator &D) { return 0; } - // TODO: Get stmt info. - StmtTy *FnBody = 0; - ParseCompoundStatement(); + // Parse the function body as a compound stmt. + StmtResult FnBody = ParseCompoundStatement(); + if (FnBody.isInvalid) return 0; // TODO: Pass argument information. - return Actions.ParseFunctionDefinition(CurScope, D, FnBody); + return Actions.ParseFunctionDefinition(CurScope, D, FnBody.Val); } /// ParseAsmStringLiteral - This is just a normal string-literal, but is not diff --git a/clang/Sema/Sema.cpp b/clang/Sema/Sema.cpp index e6b09c8abb23..f42ec104bad4 100644 --- a/clang/Sema/Sema.cpp +++ b/clang/Sema/Sema.cpp @@ -139,7 +139,9 @@ ASTBuilder::ParseDeclarator(Scope *S, Declarator &D, ExprTy *Init, Action::DeclTy * ASTBuilder::ParseFunctionDefinition(Scope *S, Declarator &D, StmtTy *Body) { FunctionDecl *FD = (FunctionDecl *)ParseDeclarator(S, D, 0, 0); - // TODO: more stuff. + + FD->setBody((Stmt*)Body); + return FD; } diff --git a/clang/include/clang/AST/Decl.h b/clang/include/clang/AST/Decl.h index f4588124cb32..43c5e1055765 100644 --- a/clang/include/clang/AST/Decl.h +++ b/clang/include/clang/AST/Decl.h @@ -20,6 +20,7 @@ namespace llvm { namespace clang { class IdentifierInfo; +class Stmt; /// Decl - This represents one declaration (or definition), e.g. a variable, /// typedef, function, struct, etc. @@ -54,10 +55,13 @@ public: /// declaration or definition. class FunctionDecl : public Decl { // Args etc. + Stmt *Body; // Null if a prototype. public: FunctionDecl(IdentifierInfo *Id, const Declarator &D, Decl *Next) - : Decl(Id, D, Next) {} - + : Decl(Id, D, Next), Body(0) {} + + Stmt *getBody() const { return Body; } + void setBody(Stmt *B) { Body = B; } }; /// VarDecl - An instance of this class is created to represent a variable diff --git a/clang/include/clang/Parse/Action.h b/clang/include/clang/Parse/Action.h index d7d2ad776c5d..4b0b50a0cf48 100644 --- a/clang/include/clang/Parse/Action.h +++ b/clang/include/clang/Parse/Action.h @@ -51,23 +51,29 @@ public: typedef void DeclTy; typedef void TypeTy; - /// ExprResult - This structure is used while parsing/acting on expressions. - /// It encapsulates both the expression object returned by the action, plus + /// ActionResult - This structure is used while parsing/acting on expressions, + /// stmts, etc. It encapsulates both the object returned by the action, plus /// a sense of whether or not it is valid. - struct ExprResult { - ExprTy *Val; + template + struct ActionResult { + void *Val; bool isInvalid; - ExprResult(bool Invalid = false) : Val(0), isInvalid(Invalid) {} + ActionResult(bool Invalid = false) : Val(0), isInvalid(Invalid) {} template - ExprResult(ActualExprTy *val) : Val(val), isInvalid(false) {} + ActionResult(ActualExprTy *val) : Val(val), isInvalid(false) {} - const ExprResult &operator=(ExprTy *RHS) { + const ActionResult &operator=(void *RHS) { Val = RHS; isInvalid = false; return *this; } }; + + /// Expr/StmtResult - Provide a unique type to wrap ExprTy/StmtTy, etc, + /// providing strong typing and allowing for failure. + typedef ActionResult<0> ExprResult; + typedef ActionResult<1> StmtResult; //===--------------------------------------------------------------------===// // Symbol Table Tracking Callbacks. @@ -106,6 +112,75 @@ public: // 'External Declaration' (Top Level) Parsing Callbacks. //===--------------------------------------------------------------------===// + //===--------------------------------------------------------------------===// + // Statement Parsing Callbacks. + //===--------------------------------------------------------------------===// + + virtual StmtResult ParseCompoundStmt(SourceLocation L, SourceLocation R, + StmtTy **Elts, unsigned NumElts) { + return 0; + } + virtual StmtResult ParseExprStmt(ExprTy *Expr) { + return 0; + } + + /// ParseCaseStmt - Note that this handles the GNU 'case 1 ... 4' extension, + /// which can specify an RHS value. + virtual StmtResult ParseCaseStmt(SourceLocation CaseLoc, ExprTy *LHSVal, + SourceLocation DotDotDotLoc, ExprTy *RHSVal, + SourceLocation ColonLoc, StmtTy *SubStmt) { + return 0; + } + virtual StmtResult ParseDefaultStmt(SourceLocation DefaultLoc, + SourceLocation ColonLoc, StmtTy *SubStmt){ + return 0; + } + + virtual StmtResult ParseLabelStmt(const LexerToken &IdentTok, + SourceLocation ColonLoc, StmtTy *SubStmt) { + return 0; + } + + virtual StmtResult ParseIfStmt(SourceLocation IfLoc, ExprTy *CondVal, + StmtTy *ThenVal, SourceLocation ElseLoc, + StmtTy *ElseVal) { + return 0; + } + + virtual StmtResult ParseSwitchStmt(SourceLocation SwitchLoc, ExprTy *Cond, + StmtTy *Body) { + return 0; + } + virtual StmtResult ParseWhileStmt(SourceLocation WhileLoc, ExprTy *Cond, + StmtTy *Body) { + return 0; + } + virtual StmtResult ParseDoStmt(SourceLocation DoLoc, StmtTy *Body, + SourceLocation WhileLoc, ExprTy *Cond) { + return 0; + } + // PARSE FOR STMT. + virtual StmtResult ParseGotoStmt(SourceLocation GotoLoc, + const LexerToken &LabelTok) { + return 0; + } + virtual StmtResult ParseContinueStmt(SourceLocation GotoLoc) { + return 0; + } + virtual StmtResult ParseBreakStmt(SourceLocation GotoLoc) { + return 0; + } + virtual StmtResult ParseIndirectGotoStmt(SourceLocation GotoLoc, + SourceLocation StarLoc, + ExprTy *DestExp) { + return 0; + } + virtual StmtResult ParseReturnStmt(SourceLocation ReturnLoc, + ExprTy *RetValExp) { + return 0; + } + + //===--------------------------------------------------------------------===// // Expression Parsing Callbacks. //===--------------------------------------------------------------------===// diff --git a/clang/include/clang/Parse/Parser.h b/clang/include/clang/Parse/Parser.h index 2b5cb5f6d0d7..c5f8f8c40424 100644 --- a/clang/include/clang/Parse/Parser.h +++ b/clang/include/clang/Parse/Parser.h @@ -225,6 +225,7 @@ private: // C99 6.5: Expressions. typedef Action::ExprResult ExprResult; + typedef Action::StmtResult StmtResult; ExprResult ParseExpression(); ExprResult ParseConstantExpression(); @@ -266,20 +267,20 @@ private: //===--------------------------------------------------------------------===// // C99 6.8: Statements and Blocks. - void ParseStatement() { ParseStatementOrDeclaration(true); } - void ParseStatementOrDeclaration(bool OnlyStatement = false); - void ParseIdentifierStatement(bool OnlyStatement); - void ParseCaseStatement(); - void ParseDefaultStatement(); - void ParseCompoundStatement(); - void ParseIfStatement(); - void ParseSwitchStatement(); - void ParseWhileStatement(); - void ParseDoStatement(); - void ParseForStatement(); - void ParseGotoStatement(); - void ParseReturnStatement(); - void ParseAsmStatement(); + StmtResult ParseStatement() { return ParseStatementOrDeclaration(true); } + StmtResult ParseStatementOrDeclaration(bool OnlyStatement = false); + StmtResult ParseIdentifierStatement(bool OnlyStatement); + StmtResult ParseCaseStatement(); + StmtResult ParseDefaultStatement(); + StmtResult ParseCompoundStatement(); + StmtResult ParseIfStatement(); + StmtResult ParseSwitchStatement(); + StmtResult ParseWhileStatement(); + StmtResult ParseDoStatement(); + StmtResult ParseForStatement(); + StmtResult ParseGotoStatement(); + StmtResult ParseReturnStatement(); + StmtResult ParseAsmStatement(); void ParseAsmOperandsOpt(); //===--------------------------------------------------------------------===//