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authordim <dim@FreeBSD.org>2011-05-02 19:39:53 +0000
committerdim <dim@FreeBSD.org>2011-05-02 19:39:53 +0000
commit110eaaceddcec790f7e6a5e3bf1261c9aa1e73ab (patch)
tree64a10f4c4154739d4a8191d7e1b52ce497f4ebd6 /lib/Parse/ParseStmt.cpp
parenta0fb00f9837bd0d2e5948f16f6a6b82a7a628f51 (diff)
downloadFreeBSD-src-110eaaceddcec790f7e6a5e3bf1261c9aa1e73ab.zip
FreeBSD-src-110eaaceddcec790f7e6a5e3bf1261c9aa1e73ab.tar.gz
Vendor import of clang trunk r130700:
http://llvm.org/svn/llvm-project/cfe/trunk@130700
Diffstat (limited to 'lib/Parse/ParseStmt.cpp')
-rw-r--r--lib/Parse/ParseStmt.cpp438
1 files changed, 368 insertions, 70 deletions
diff --git a/lib/Parse/ParseStmt.cpp b/lib/Parse/ParseStmt.cpp
index 2d97583..f0ab531 100644
--- a/lib/Parse/ParseStmt.cpp
+++ b/lib/Parse/ParseStmt.cpp
@@ -40,6 +40,7 @@ using namespace clang;
/// jump-statement
/// [C++] declaration-statement
/// [C++] try-block
+/// [MS] seh-try-block
/// [OBC] objc-throw-statement
/// [OBC] objc-try-catch-statement
/// [OBC] objc-synchronized-statement
@@ -81,12 +82,13 @@ Parser::ParseStatementOrDeclaration(StmtVector &Stmts, bool OnlyStatement) {
ParenBraceBracketBalancer BalancerRAIIObj(*this);
- ParsedAttributesWithRange attrs;
+ ParsedAttributesWithRange attrs(AttrFactory);
MaybeParseCXX0XAttributes(attrs);
// 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.
+Retry:
tok::TokenKind Kind = Tok.getKind();
SourceLocation AtLoc;
switch (Kind) {
@@ -101,13 +103,103 @@ Parser::ParseStatementOrDeclaration(StmtVector &Stmts, bool OnlyStatement) {
ConsumeCodeCompletionToken();
return ParseStatementOrDeclaration(Stmts, OnlyStatement);
- case tok::identifier:
- if (NextToken().is(tok::colon)) { // C99 6.8.1: labeled-statement
+ case tok::identifier: {
+ Token Next = NextToken();
+ if (Next.is(tok::colon)) { // C99 6.8.1: labeled-statement
// identifier ':' statement
return ParseLabeledStatement(attrs);
}
- // PASS THROUGH.
-
+
+ if (Next.isNot(tok::coloncolon)) {
+ CXXScopeSpec SS;
+ IdentifierInfo *Name = Tok.getIdentifierInfo();
+ SourceLocation NameLoc = Tok.getLocation();
+ Sema::NameClassification Classification
+ = Actions.ClassifyName(getCurScope(), SS, Name, NameLoc, Next);
+ switch (Classification.getKind()) {
+ case Sema::NC_Keyword:
+ // The identifier was corrected to a keyword. Update the token
+ // to this keyword, and try again.
+ if (Name->getTokenID() != tok::identifier) {
+ Tok.setIdentifierInfo(Name);
+ Tok.setKind(Name->getTokenID());
+ goto Retry;
+ }
+
+ // Fall through via the normal error path.
+ // FIXME: This seems like it could only happen for context-sensitive
+ // keywords.
+
+ case Sema::NC_Error:
+ // Handle errors here by skipping up to the next semicolon or '}', and
+ // eat the semicolon if that's what stopped us.
+ SkipUntil(tok::r_brace, /*StopAtSemi=*/true, /*DontConsume=*/true);
+ if (Tok.is(tok::semi))
+ ConsumeToken();
+ return StmtError();
+
+ case Sema::NC_Unknown:
+ // Either we don't know anything about this identifier, or we know that
+ // we're in a syntactic context we haven't handled yet.
+ break;
+
+ case Sema::NC_Type:
+ Tok.setKind(tok::annot_typename);
+ setTypeAnnotation(Tok, Classification.getType());
+ Tok.setAnnotationEndLoc(NameLoc);
+ PP.AnnotateCachedTokens(Tok);
+ break;
+
+ case Sema::NC_Expression:
+ Tok.setKind(tok::annot_primary_expr);
+ setExprAnnotation(Tok, Classification.getExpression());
+ Tok.setAnnotationEndLoc(NameLoc);
+ PP.AnnotateCachedTokens(Tok);
+ break;
+
+ case Sema::NC_TypeTemplate:
+ case Sema::NC_FunctionTemplate: {
+ ConsumeToken(); // the identifier
+ UnqualifiedId Id;
+ Id.setIdentifier(Name, NameLoc);
+ if (AnnotateTemplateIdToken(
+ TemplateTy::make(Classification.getTemplateName()),
+ Classification.getTemplateNameKind(),
+ SS, Id, SourceLocation(),
+ /*AllowTypeAnnotation=*/false)) {
+ // Handle errors here by skipping up to the next semicolon or '}', and
+ // eat the semicolon if that's what stopped us.
+ SkipUntil(tok::r_brace, /*StopAtSemi=*/true, /*DontConsume=*/true);
+ if (Tok.is(tok::semi))
+ ConsumeToken();
+ return StmtError();
+ }
+
+ // If the next token is '::', jump right into parsing a
+ // nested-name-specifier. We don't want to leave the template-id
+ // hanging.
+ if (NextToken().is(tok::coloncolon) && TryAnnotateCXXScopeToken(false)){
+ // Handle errors here by skipping up to the next semicolon or '}', and
+ // eat the semicolon if that's what stopped us.
+ SkipUntil(tok::r_brace, /*StopAtSemi=*/true, /*DontConsume=*/true);
+ if (Tok.is(tok::semi))
+ ConsumeToken();
+ return StmtError();
+ }
+
+ // We've annotated a template-id, so try again now.
+ goto Retry;
+ }
+
+ case Sema::NC_NestedNameSpecifier:
+ // FIXME: Implement this!
+ break;
+ }
+ }
+
+ // Fall through
+ }
+
default: {
if ((getLang().CPlusPlus || !OnlyStatement) && isDeclarationStatement()) {
SourceLocation DeclStart = Tok.getLocation(), DeclEnd;
@@ -121,21 +213,7 @@ Parser::ParseStatementOrDeclaration(StmtVector &Stmts, bool OnlyStatement) {
return StmtError();
}
- // FIXME: Use the attributes
- // expression[opt] ';'
- ExprResult Expr(ParseExpression());
- if (Expr.isInvalid()) {
- // If the expression is invalid, skip ahead to the next semicolon or '}'.
- // Not doing this opens us up to the possibility of infinite loops if
- // ParseExpression does not consume any tokens.
- SkipUntil(tok::r_brace, /*StopAtSemi=*/true, /*DontConsume=*/true);
- if (Tok.is(tok::semi))
- ConsumeToken();
- return StmtError();
- }
- // Otherwise, eat the semicolon.
- ExpectAndConsumeSemi(diag::err_expected_semi_after_expr);
- return Actions.ActOnExprStmt(Actions.MakeFullExpr(Expr.get()));
+ return ParseExprStatement(attrs);
}
case tok::kw_case: // C99 6.8.1: labeled-statement
@@ -146,8 +224,10 @@ Parser::ParseStatementOrDeclaration(StmtVector &Stmts, bool OnlyStatement) {
case tok::l_brace: // C99 6.8.2: compound-statement
return ParseCompoundStatement(attrs);
case tok::semi: { // C99 6.8.3p3: expression[opt] ';'
- bool LeadingEmptyMacro = Tok.hasLeadingEmptyMacro();
- return Actions.ActOnNullStmt(ConsumeToken(), LeadingEmptyMacro);
+ SourceLocation LeadingEmptyMacroLoc;
+ if (Tok.hasLeadingEmptyMacro())
+ LeadingEmptyMacroLoc = PP.getLastEmptyMacroInstantiationLoc();
+ return Actions.ActOnNullStmt(ConsumeToken(), LeadingEmptyMacroLoc);
}
case tok::kw_if: // C99 6.8.4.1: if-statement
@@ -193,6 +273,9 @@ Parser::ParseStatementOrDeclaration(StmtVector &Stmts, bool OnlyStatement) {
case tok::kw_try: // C++ 15: try-block
return ParseCXXTryBlock(attrs);
+
+ case tok::kw___try:
+ return ParseSEHTryBlock(attrs);
}
// If we reached this code, the statement must end in a semicolon.
@@ -210,6 +293,145 @@ Parser::ParseStatementOrDeclaration(StmtVector &Stmts, bool OnlyStatement) {
return move(Res);
}
+/// \brief Parse an expression statement.
+StmtResult Parser::ParseExprStatement(ParsedAttributes &Attrs) {
+ // If a case keyword is missing, this is where it should be inserted.
+ Token OldToken = Tok;
+
+ // FIXME: Use the attributes
+ // expression[opt] ';'
+ ExprResult Expr(ParseExpression());
+ if (Expr.isInvalid()) {
+ // If the expression is invalid, skip ahead to the next semicolon or '}'.
+ // Not doing this opens us up to the possibility of infinite loops if
+ // ParseExpression does not consume any tokens.
+ SkipUntil(tok::r_brace, /*StopAtSemi=*/true, /*DontConsume=*/true);
+ if (Tok.is(tok::semi))
+ ConsumeToken();
+ return StmtError();
+ }
+
+ if (Tok.is(tok::colon) && getCurScope()->isSwitchScope() &&
+ Actions.CheckCaseExpression(Expr.get())) {
+ // If a constant expression is followed by a colon inside a switch block,
+ // suggest a missing case keyword.
+ Diag(OldToken, diag::err_expected_case_before_expression)
+ << FixItHint::CreateInsertion(OldToken.getLocation(), "case ");
+
+ // Recover parsing as a case statement.
+ return ParseCaseStatement(Attrs, /*MissingCase=*/true, Expr);
+ }
+
+ // Otherwise, eat the semicolon.
+ ExpectAndConsumeSemi(diag::err_expected_semi_after_expr);
+ return Actions.ActOnExprStmt(Actions.MakeFullExpr(Expr.get()));
+}
+
+StmtResult Parser::ParseSEHTryBlock(ParsedAttributes & Attrs) {
+ assert(Tok.is(tok::kw___try) && "Expected '__try'");
+ SourceLocation Loc = ConsumeToken();
+ return ParseSEHTryBlockCommon(Loc);
+}
+
+/// ParseSEHTryBlockCommon
+///
+/// seh-try-block:
+/// '__try' compound-statement seh-handler
+///
+/// seh-handler:
+/// seh-except-block
+/// seh-finally-block
+///
+StmtResult Parser::ParseSEHTryBlockCommon(SourceLocation TryLoc) {
+ if(Tok.isNot(tok::l_brace))
+ return StmtError(Diag(Tok,diag::err_expected_lbrace));
+
+ ParsedAttributesWithRange attrs(AttrFactory);
+ StmtResult TryBlock(ParseCompoundStatement(attrs));
+ if(TryBlock.isInvalid())
+ return move(TryBlock);
+
+ StmtResult Handler;
+ if(Tok.is(tok::kw___except)) {
+ SourceLocation Loc = ConsumeToken();
+ Handler = ParseSEHExceptBlock(Loc);
+ } else if (Tok.is(tok::kw___finally)) {
+ SourceLocation Loc = ConsumeToken();
+ Handler = ParseSEHFinallyBlock(Loc);
+ } else {
+ return StmtError(Diag(Tok,diag::err_seh_expected_handler));
+ }
+
+ if(Handler.isInvalid())
+ return move(Handler);
+
+ return Actions.ActOnSEHTryBlock(false /* IsCXXTry */,
+ TryLoc,
+ TryBlock.take(),
+ Handler.take());
+}
+
+/// ParseSEHExceptBlock - Handle __except
+///
+/// seh-except-block:
+/// '__except' '(' seh-filter-expression ')' compound-statement
+///
+StmtResult Parser::ParseSEHExceptBlock(SourceLocation ExceptLoc) {
+ PoisonIdentifierRAIIObject raii(Ident__exception_code, false),
+ raii2(Ident___exception_code, false),
+ raii3(Ident_GetExceptionCode, false);
+
+ if(ExpectAndConsume(tok::l_paren,diag::err_expected_lparen))
+ return StmtError();
+
+ ParseScope ExpectScope(this, Scope::DeclScope | Scope::ControlScope);
+
+ if (getLang().Borland) {
+ Ident__exception_info->setIsPoisoned(false);
+ Ident___exception_info->setIsPoisoned(false);
+ Ident_GetExceptionInfo->setIsPoisoned(false);
+ }
+ ExprResult FilterExpr(ParseExpression());
+
+ if (getLang().Borland) {
+ Ident__exception_info->setIsPoisoned(true);
+ Ident___exception_info->setIsPoisoned(true);
+ Ident_GetExceptionInfo->setIsPoisoned(true);
+ }
+
+ if(FilterExpr.isInvalid())
+ return StmtError();
+
+ if(ExpectAndConsume(tok::r_paren,diag::err_expected_rparen))
+ return StmtError();
+
+ ParsedAttributesWithRange attrs(AttrFactory);
+ StmtResult Block(ParseCompoundStatement(attrs));
+
+ if(Block.isInvalid())
+ return move(Block);
+
+ return Actions.ActOnSEHExceptBlock(ExceptLoc, FilterExpr.take(), Block.take());
+}
+
+/// ParseSEHFinallyBlock - Handle __finally
+///
+/// seh-finally-block:
+/// '__finally' compound-statement
+///
+StmtResult Parser::ParseSEHFinallyBlock(SourceLocation FinallyBlock) {
+ PoisonIdentifierRAIIObject raii(Ident__abnormal_termination, false),
+ raii2(Ident___abnormal_termination, false),
+ raii3(Ident_AbnormalTermination, false);
+
+ ParsedAttributesWithRange attrs(AttrFactory);
+ StmtResult Block(ParseCompoundStatement(attrs));
+ if(Block.isInvalid())
+ return move(Block);
+
+ return Actions.ActOnSEHFinallyBlock(FinallyBlock,Block.take());
+}
+
/// ParseLabeledStatement - We have an identifier and a ':' after it.
///
/// labeled-statement:
@@ -251,8 +473,9 @@ StmtResult Parser::ParseLabeledStatement(ParsedAttributes &attrs) {
/// 'case' constant-expression ':' statement
/// [GNU] 'case' constant-expression '...' constant-expression ':' statement
///
-StmtResult Parser::ParseCaseStatement(ParsedAttributes &attrs) {
- assert(Tok.is(tok::kw_case) && "Not a case stmt!");
+StmtResult Parser::ParseCaseStatement(ParsedAttributes &attrs, bool MissingCase,
+ ExprResult Expr) {
+ assert((MissingCase || Tok.is(tok::kw_case)) && "Not a case stmt!");
// FIXME: Use attributes?
// It is very very common for code to contain many case statements recursively
@@ -280,7 +503,8 @@ StmtResult Parser::ParseCaseStatement(ParsedAttributes &attrs) {
// While we have case statements, eat and stack them.
do {
- SourceLocation CaseLoc = ConsumeToken(); // eat the 'case'.
+ SourceLocation CaseLoc = MissingCase ? Expr.get()->getExprLoc() :
+ ConsumeToken(); // eat the 'case'.
if (Tok.is(tok::code_completion)) {
Actions.CodeCompleteCase(getCurScope());
@@ -292,7 +516,8 @@ StmtResult Parser::ParseCaseStatement(ParsedAttributes &attrs) {
/// expression.
ColonProtectionRAIIObject ColonProtection(*this);
- ExprResult LHS(ParseConstantExpression());
+ ExprResult LHS(MissingCase ? Expr : ParseConstantExpression());
+ MissingCase = false;
if (LHS.isInvalid()) {
SkipUntil(tok::colon);
return StmtError();
@@ -493,14 +718,14 @@ StmtResult Parser::ParseCompoundStatementBody(bool isStmtExpr) {
IdentifierInfo *II = Tok.getIdentifierInfo();
SourceLocation IdLoc = ConsumeToken();
- DeclsInGroup.push_back(Actions.LookupOrCreateLabel(II, IdLoc, true));
+ DeclsInGroup.push_back(Actions.LookupOrCreateLabel(II, IdLoc, LabelLoc));
if (!Tok.is(tok::comma))
break;
ConsumeToken();
}
- DeclSpec DS;
+ DeclSpec DS(AttrFactory);
DeclGroupPtrTy Res = Actions.FinalizeDeclaratorGroup(getCurScope(), DS,
DeclsInGroup.data(), DeclsInGroup.size());
StmtResult R = Actions.ActOnDeclStmt(Res, LabelLoc, Tok.getLocation());
@@ -528,7 +753,7 @@ StmtResult Parser::ParseCompoundStatementBody(bool isStmtExpr) {
while (Tok.is(tok::kw___extension__))
ConsumeToken();
- ParsedAttributesWithRange attrs;
+ ParsedAttributesWithRange attrs(AttrFactory);
MaybeParseCXX0XAttributes(attrs);
// If this is the start of a declaration, parse it as such.
@@ -775,7 +1000,7 @@ StmtResult Parser::ParseSwitchStatement(ParsedAttributes &attrs) {
// while, for, and switch statements are local to the if, while, for, or
// switch statement (including the controlled statement).
//
- unsigned ScopeFlags = Scope::BreakScope;
+ unsigned ScopeFlags = Scope::BreakScope | Scope::SwitchScope;
if (C99orCXX)
ScopeFlags |= Scope::DeclScope | Scope::ControlScope;
ParseScope SwitchScope(this, ScopeFlags);
@@ -977,6 +1202,7 @@ StmtResult Parser::ParseDoStatement(ParsedAttributes &attrs) {
/// 'for' '(' declaration expr[opt] ';' expr[opt] ')' statement
/// [C++] 'for' '(' for-init-statement condition[opt] ';' expression[opt] ')'
/// [C++] statement
+/// [C++0x] 'for' '(' for-range-declaration : for-range-initializer ) statement
/// [OBJC2] 'for' '(' declaration 'in' expr ')' statement
/// [OBJC2] 'for' '(' expr 'in' expr ')' statement
///
@@ -984,6 +1210,11 @@ StmtResult Parser::ParseDoStatement(ParsedAttributes &attrs) {
/// [C++] expression-statement
/// [C++] simple-declaration
///
+/// [C++0x] for-range-declaration:
+/// [C++0x] attribute-specifier-seq[opt] type-specifier-seq declarator
+/// [C++0x] for-range-initializer:
+/// [C++0x] expression
+/// [C++0x] braced-init-list [TODO]
StmtResult Parser::ParseForStatement(ParsedAttributes &attrs) {
// FIXME: Use attributes?
@@ -1025,11 +1256,12 @@ StmtResult Parser::ParseForStatement(ParsedAttributes &attrs) {
SourceLocation LParenLoc = ConsumeParen();
ExprResult Value;
- bool ForEach = false;
+ bool ForEach = false, ForRange = false;
StmtResult FirstPart;
bool SecondPartIsInvalid = false;
FullExprArg SecondPart(Actions);
ExprResult Collection;
+ ForRangeInit ForRangeInit;
FullExprArg ThirdPart(Actions);
Decl *SecondVar = 0;
@@ -1049,16 +1281,24 @@ StmtResult Parser::ParseForStatement(ParsedAttributes &attrs) {
if (!C99orCXXorObjC) // Use of C99-style for loops in C90 mode?
Diag(Tok, diag::ext_c99_variable_decl_in_for_loop);
- ParsedAttributesWithRange attrs;
+ ParsedAttributesWithRange attrs(AttrFactory);
MaybeParseCXX0XAttributes(attrs);
+ // In C++0x, "for (T NS:a" might not be a typo for ::
+ bool MightBeForRangeStmt = getLang().CPlusPlus;
+ ColonProtectionRAIIObject ColonProtection(*this, MightBeForRangeStmt);
+
SourceLocation DeclStart = Tok.getLocation(), DeclEnd;
StmtVector Stmts(Actions);
DeclGroupPtrTy DG = ParseSimpleDeclaration(Stmts, Declarator::ForContext,
- DeclEnd, attrs, false);
+ DeclEnd, attrs, false,
+ MightBeForRangeStmt ?
+ &ForRangeInit : 0);
FirstPart = Actions.ActOnDeclStmt(DG, DeclStart, Tok.getLocation());
- if (Tok.is(tok::semi)) { // for (int x = 4;
+ if (ForRangeInit.ParsedForRangeDecl()) {
+ ForRange = true;
+ } else if (Tok.is(tok::semi)) { // for (int x = 4;
ConsumeToken();
} else if ((ForEach = isTokIdentifier_in())) {
Actions.ActOnForEachDeclStmt(DG);
@@ -1107,7 +1347,7 @@ StmtResult Parser::ParseForStatement(ParsedAttributes &attrs) {
}
}
}
- if (!ForEach) {
+ if (!ForEach && !ForRange) {
assert(!SecondPart.get() && "Shouldn't have a second expression yet.");
// Parse the second part of the for specifier.
if (Tok.is(tok::semi)) { // for (...;;
@@ -1149,6 +1389,17 @@ StmtResult Parser::ParseForStatement(ParsedAttributes &attrs) {
// Match the ')'.
SourceLocation RParenLoc = MatchRHSPunctuation(tok::r_paren, LParenLoc);
+ // We need to perform most of the semantic analysis for a C++0x for-range
+ // statememt before parsing the body, in order to be able to deduce the type
+ // of an auto-typed loop variable.
+ StmtResult ForRangeStmt;
+ if (ForRange)
+ ForRangeStmt = Actions.ActOnCXXForRangeStmt(ForLoc, LParenLoc,
+ FirstPart.take(),
+ ForRangeInit.ColonLoc,
+ ForRangeInit.RangeExpr.get(),
+ RParenLoc);
+
// C99 6.8.5p5 - In C99, the body of the if statement is a scope, even if
// there is no compound stmt. C90 does not have this clause. We only do this
// if the body isn't a compound statement to avoid push/pop in common cases.
@@ -1175,15 +1426,19 @@ StmtResult Parser::ParseForStatement(ParsedAttributes &attrs) {
if (Body.isInvalid())
return StmtError();
- if (!ForEach)
- return Actions.ActOnForStmt(ForLoc, LParenLoc, FirstPart.take(), SecondPart,
- SecondVar, ThirdPart, RParenLoc, Body.take());
+ if (ForEach)
+ // FIXME: It isn't clear how to communicate the late destruction of
+ // C++ temporaries used to create the collection.
+ return Actions.ActOnObjCForCollectionStmt(ForLoc, LParenLoc,
+ FirstPart.take(),
+ Collection.take(), RParenLoc,
+ Body.take());
+
+ if (ForRange)
+ return Actions.FinishCXXForRangeStmt(ForRangeStmt.take(), Body.take());
- // FIXME: It isn't clear how to communicate the late destruction of
- // C++ temporaries used to create the collection.
- return Actions.ActOnObjCForCollectionStmt(ForLoc, LParenLoc, FirstPart.take(),
- Collection.take(), RParenLoc,
- Body.take());
+ return Actions.ActOnForStmt(ForLoc, LParenLoc, FirstPart.take(), SecondPart,
+ SecondVar, ThirdPart, RParenLoc, Body.take());
}
/// ParseGotoStatement
@@ -1267,7 +1522,16 @@ StmtResult Parser::ParseReturnStatement(ParsedAttributes &attrs) {
return StmtError();
}
- R = ParseExpression();
+ // FIXME: This is a hack to allow something like C++0x's generalized
+ // initializer lists, but only enough of this feature to allow Clang to
+ // parse libstdc++ 4.5's headers.
+ if (Tok.is(tok::l_brace) && getLang().CPlusPlus) {
+ R = ParseInitializer();
+ if (R.isUsable() && !getLang().CPlusPlus0x)
+ Diag(R.get()->getLocStart(), diag::ext_generalized_initializer_lists)
+ << R.get()->getSourceRange();
+ } else
+ R = ParseExpression();
if (R.isInvalid()) { // Skip to the semicolon, but don't consume it.
SkipUntil(tok::semi, false, true);
return StmtError();
@@ -1350,7 +1614,7 @@ StmtResult Parser::ParseAsmStatement(bool &msAsm) {
msAsm = true;
return FuzzyParseMicrosoftAsmStatement(AsmLoc);
}
- DeclSpec DS;
+ DeclSpec DS(AttrFactory);
SourceLocation Loc = Tok.getLocation();
ParseTypeQualifierListOpt(DS, true, false);
@@ -1522,14 +1786,17 @@ bool Parser::ParseAsmOperandsOpt(llvm::SmallVectorImpl<IdentifierInfo *> &Names,
return true;
}
-Decl *Parser::ParseFunctionStatementBody(Decl *Decl) {
+Decl *Parser::ParseFunctionStatementBody(Decl *Decl, ParseScope &BodyScope) {
assert(Tok.is(tok::l_brace));
SourceLocation LBraceLoc = Tok.getLocation();
- if (PP.isCodeCompletionEnabled())
- if (trySkippingFunctionBodyForCodeCompletion())
+ if (PP.isCodeCompletionEnabled()) {
+ if (trySkippingFunctionBodyForCodeCompletion()) {
+ BodyScope.Exit();
return Actions.ActOnFinishFunctionBody(Decl, 0);
-
+ }
+ }
+
PrettyDeclStackTraceEntry CrashInfo(Actions, Decl, LBraceLoc,
"parsing function body");
@@ -1543,6 +1810,7 @@ Decl *Parser::ParseFunctionStatementBody(Decl *Decl) {
FnBody = Actions.ActOnCompoundStmt(LBraceLoc, LBraceLoc,
MultiStmtArg(Actions), false);
+ BodyScope.Exit();
return Actions.ActOnFinishFunctionBody(Decl, FnBody.take());
}
@@ -1551,7 +1819,7 @@ Decl *Parser::ParseFunctionStatementBody(Decl *Decl) {
/// function-try-block:
/// 'try' ctor-initializer[opt] compound-statement handler-seq
///
-Decl *Parser::ParseFunctionTryBlock(Decl *Decl) {
+Decl *Parser::ParseFunctionTryBlock(Decl *Decl, ParseScope &BodyScope) {
assert(Tok.is(tok::kw_try) && "Expected 'try'");
SourceLocation TryLoc = ConsumeToken();
@@ -1562,9 +1830,12 @@ Decl *Parser::ParseFunctionTryBlock(Decl *Decl) {
if (Tok.is(tok::colon))
ParseConstructorInitializer(Decl);
- if (PP.isCodeCompletionEnabled())
- if (trySkippingFunctionBodyForCodeCompletion())
+ if (PP.isCodeCompletionEnabled()) {
+ if (trySkippingFunctionBodyForCodeCompletion()) {
+ BodyScope.Exit();
return Actions.ActOnFinishFunctionBody(Decl, 0);
+ }
+ }
SourceLocation LBraceLoc = Tok.getLocation();
StmtResult FnBody(ParseCXXTryBlockCommon(TryLoc));
@@ -1574,6 +1845,7 @@ Decl *Parser::ParseFunctionTryBlock(Decl *Decl) {
FnBody = Actions.ActOnCompoundStmt(LBraceLoc, LBraceLoc,
MultiStmtArg(Actions), false);
+ BodyScope.Exit();
return Actions.ActOnFinishFunctionBody(Decl, FnBody.take());
}
@@ -1622,32 +1894,58 @@ StmtResult Parser::ParseCXXTryBlock(ParsedAttributes &attrs) {
/// handler-seq:
/// handler handler-seq[opt]
///
+/// [Borland] try-block:
+/// 'try' compound-statement seh-except-block
+/// 'try' compound-statment seh-finally-block
+///
StmtResult Parser::ParseCXXTryBlockCommon(SourceLocation TryLoc) {
if (Tok.isNot(tok::l_brace))
return StmtError(Diag(Tok, diag::err_expected_lbrace));
// FIXME: Possible draft standard bug: attribute-specifier should be allowed?
- ParsedAttributesWithRange attrs;
+ ParsedAttributesWithRange attrs(AttrFactory);
StmtResult TryBlock(ParseCompoundStatement(attrs));
if (TryBlock.isInvalid())
return move(TryBlock);
- StmtVector Handlers(Actions);
- MaybeParseCXX0XAttributes(attrs);
- ProhibitAttributes(attrs);
-
- if (Tok.isNot(tok::kw_catch))
- return StmtError(Diag(Tok, diag::err_expected_catch));
- while (Tok.is(tok::kw_catch)) {
- StmtResult Handler(ParseCXXCatchBlock());
- if (!Handler.isInvalid())
- Handlers.push_back(Handler.release());
+ // Borland allows SEH-handlers with 'try'
+ if(Tok.is(tok::kw___except) || Tok.is(tok::kw___finally)) {
+ // TODO: Factor into common return ParseSEHHandlerCommon(...)
+ StmtResult Handler;
+ if(Tok.is(tok::kw___except)) {
+ SourceLocation Loc = ConsumeToken();
+ Handler = ParseSEHExceptBlock(Loc);
+ }
+ else {
+ SourceLocation Loc = ConsumeToken();
+ Handler = ParseSEHFinallyBlock(Loc);
+ }
+ if(Handler.isInvalid())
+ return move(Handler);
+
+ return Actions.ActOnSEHTryBlock(true /* IsCXXTry */,
+ TryLoc,
+ TryBlock.take(),
+ Handler.take());
}
- // Don't bother creating the full statement if we don't have any usable
- // handlers.
- if (Handlers.empty())
- return StmtError();
+ else {
+ StmtVector Handlers(Actions);
+ MaybeParseCXX0XAttributes(attrs);
+ ProhibitAttributes(attrs);
+
+ if (Tok.isNot(tok::kw_catch))
+ return StmtError(Diag(Tok, diag::err_expected_catch));
+ while (Tok.is(tok::kw_catch)) {
+ StmtResult Handler(ParseCXXCatchBlock());
+ if (!Handler.isInvalid())
+ Handlers.push_back(Handler.release());
+ }
+ // Don't bother creating the full statement if we don't have any usable
+ // handlers.
+ if (Handlers.empty())
+ return StmtError();
- return Actions.ActOnCXXTryBlock(TryLoc, TryBlock.take(), move_arg(Handlers));
+ return Actions.ActOnCXXTryBlock(TryLoc, TryBlock.take(), move_arg(Handlers));
+ }
}
/// ParseCXXCatchBlock - Parse a C++ catch block, called handler in the standard
@@ -1679,7 +1977,7 @@ StmtResult Parser::ParseCXXCatchBlock() {
// without default arguments.
Decl *ExceptionDecl = 0;
if (Tok.isNot(tok::ellipsis)) {
- DeclSpec DS;
+ DeclSpec DS(AttrFactory);
if (ParseCXXTypeSpecifierSeq(DS))
return StmtError();
Declarator ExDecl(DS, Declarator::CXXCatchContext);
@@ -1695,7 +1993,7 @@ StmtResult Parser::ParseCXXCatchBlock() {
return StmtError(Diag(Tok, diag::err_expected_lbrace));
// FIXME: Possible draft standard bug: attribute-specifier should be allowed?
- ParsedAttributes attrs;
+ ParsedAttributes attrs(AttrFactory);
StmtResult Block(ParseCompoundStatement(attrs));
if (Block.isInvalid())
return move(Block);
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