r298606 - Publish RAIIObjectsForParser.h for external usage.
Vassil Vassilev via cfe-commits
cfe-commits at lists.llvm.org
Thu Mar 23 08:11:08 PDT 2017
Author: vvassilev
Date: Thu Mar 23 10:11:07 2017
New Revision: 298606
URL: http://llvm.org/viewvc/llvm-project?rev=298606&view=rev
Log:
Publish RAIIObjectsForParser.h for external usage.
Some clients (eg the cling interpreter) need to recover their parser from
errors.
Patch by Axel Naumann (D31190)!
Added:
cfe/trunk/include/clang/Parse/RAIIObjectsForParser.h
- copied unchanged from r298605, cfe/trunk/lib/Parse/RAIIObjectsForParser.h
Removed:
cfe/trunk/lib/Parse/RAIIObjectsForParser.h
Modified:
cfe/trunk/lib/Parse/ParseCXXInlineMethods.cpp
cfe/trunk/lib/Parse/ParseDecl.cpp
cfe/trunk/lib/Parse/ParseDeclCXX.cpp
cfe/trunk/lib/Parse/ParseExpr.cpp
cfe/trunk/lib/Parse/ParseExprCXX.cpp
cfe/trunk/lib/Parse/ParseInit.cpp
cfe/trunk/lib/Parse/ParseObjc.cpp
cfe/trunk/lib/Parse/ParseOpenMP.cpp
cfe/trunk/lib/Parse/ParsePragma.cpp
cfe/trunk/lib/Parse/ParseStmt.cpp
cfe/trunk/lib/Parse/ParseStmtAsm.cpp
cfe/trunk/lib/Parse/ParseTemplate.cpp
cfe/trunk/lib/Parse/Parser.cpp
Modified: cfe/trunk/lib/Parse/ParseCXXInlineMethods.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Parse/ParseCXXInlineMethods.cpp?rev=298606&r1=298605&r2=298606&view=diff
==============================================================================
--- cfe/trunk/lib/Parse/ParseCXXInlineMethods.cpp (original)
+++ cfe/trunk/lib/Parse/ParseCXXInlineMethods.cpp Thu Mar 23 10:11:07 2017
@@ -12,9 +12,9 @@
//===----------------------------------------------------------------------===//
#include "clang/Parse/Parser.h"
-#include "RAIIObjectsForParser.h"
#include "clang/AST/DeclTemplate.h"
#include "clang/Parse/ParseDiagnostic.h"
+#include "clang/Parse/RAIIObjectsForParser.h"
#include "clang/Sema/DeclSpec.h"
#include "clang/Sema/Scope.h"
using namespace clang;
Modified: cfe/trunk/lib/Parse/ParseDecl.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Parse/ParseDecl.cpp?rev=298606&r1=298605&r2=298606&view=diff
==============================================================================
--- cfe/trunk/lib/Parse/ParseDecl.cpp (original)
+++ cfe/trunk/lib/Parse/ParseDecl.cpp Thu Mar 23 10:11:07 2017
@@ -12,7 +12,7 @@
//===----------------------------------------------------------------------===//
#include "clang/Parse/Parser.h"
-#include "RAIIObjectsForParser.h"
+#include "clang/Parse/RAIIObjectsForParser.h"
#include "clang/AST/ASTContext.h"
#include "clang/AST/DeclTemplate.h"
#include "clang/Basic/AddressSpaces.h"
Modified: cfe/trunk/lib/Parse/ParseDeclCXX.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Parse/ParseDeclCXX.cpp?rev=298606&r1=298605&r2=298606&view=diff
==============================================================================
--- cfe/trunk/lib/Parse/ParseDeclCXX.cpp (original)
+++ cfe/trunk/lib/Parse/ParseDeclCXX.cpp Thu Mar 23 10:11:07 2017
@@ -12,7 +12,6 @@
//===----------------------------------------------------------------------===//
#include "clang/Parse/Parser.h"
-#include "RAIIObjectsForParser.h"
#include "clang/AST/ASTContext.h"
#include "clang/AST/DeclTemplate.h"
#include "clang/Basic/Attributes.h"
@@ -20,6 +19,7 @@
#include "clang/Basic/OperatorKinds.h"
#include "clang/Basic/TargetInfo.h"
#include "clang/Parse/ParseDiagnostic.h"
+#include "clang/Parse/RAIIObjectsForParser.h"
#include "clang/Sema/DeclSpec.h"
#include "clang/Sema/ParsedTemplate.h"
#include "clang/Sema/PrettyDeclStackTrace.h"
Modified: cfe/trunk/lib/Parse/ParseExpr.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Parse/ParseExpr.cpp?rev=298606&r1=298605&r2=298606&view=diff
==============================================================================
--- cfe/trunk/lib/Parse/ParseExpr.cpp (original)
+++ cfe/trunk/lib/Parse/ParseExpr.cpp Thu Mar 23 10:11:07 2017
@@ -21,10 +21,10 @@
///
//===----------------------------------------------------------------------===//
-#include "RAIIObjectsForParser.h"
+#include "clang/Parse/Parser.h"
#include "clang/AST/ASTContext.h"
#include "clang/Basic/PrettyStackTrace.h"
-#include "clang/Parse/Parser.h"
+#include "clang/Parse/RAIIObjectsForParser.h"
#include "clang/Sema/DeclSpec.h"
#include "clang/Sema/ParsedTemplate.h"
#include "clang/Sema/Scope.h"
Modified: cfe/trunk/lib/Parse/ParseExprCXX.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Parse/ParseExprCXX.cpp?rev=298606&r1=298605&r2=298606&view=diff
==============================================================================
--- cfe/trunk/lib/Parse/ParseExprCXX.cpp (original)
+++ cfe/trunk/lib/Parse/ParseExprCXX.cpp Thu Mar 23 10:11:07 2017
@@ -10,13 +10,13 @@
// This file implements the Expression parsing implementation for C++.
//
//===----------------------------------------------------------------------===//
+#include "clang/Parse/Parser.h"
#include "clang/AST/ASTContext.h"
-#include "RAIIObjectsForParser.h"
#include "clang/AST/DeclTemplate.h"
#include "clang/Basic/PrettyStackTrace.h"
#include "clang/Lex/LiteralSupport.h"
#include "clang/Parse/ParseDiagnostic.h"
-#include "clang/Parse/Parser.h"
+#include "clang/Parse/RAIIObjectsForParser.h"
#include "clang/Sema/DeclSpec.h"
#include "clang/Sema/ParsedTemplate.h"
#include "clang/Sema/Scope.h"
Modified: cfe/trunk/lib/Parse/ParseInit.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Parse/ParseInit.cpp?rev=298606&r1=298605&r2=298606&view=diff
==============================================================================
--- cfe/trunk/lib/Parse/ParseInit.cpp (original)
+++ cfe/trunk/lib/Parse/ParseInit.cpp Thu Mar 23 10:11:07 2017
@@ -11,9 +11,9 @@
//
//===----------------------------------------------------------------------===//
-#include "RAIIObjectsForParser.h"
#include "clang/Parse/ParseDiagnostic.h"
#include "clang/Parse/Parser.h"
+#include "clang/Parse/RAIIObjectsForParser.h"
#include "clang/Sema/Designator.h"
#include "clang/Sema/Scope.h"
#include "llvm/ADT/SmallString.h"
Modified: cfe/trunk/lib/Parse/ParseObjc.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Parse/ParseObjc.cpp?rev=298606&r1=298605&r2=298606&view=diff
==============================================================================
--- cfe/trunk/lib/Parse/ParseObjc.cpp (original)
+++ cfe/trunk/lib/Parse/ParseObjc.cpp Thu Mar 23 10:11:07 2017
@@ -12,10 +12,10 @@
//===----------------------------------------------------------------------===//
#include "clang/Parse/Parser.h"
-#include "RAIIObjectsForParser.h"
#include "clang/AST/ASTContext.h"
#include "clang/Basic/CharInfo.h"
#include "clang/Parse/ParseDiagnostic.h"
+#include "clang/Parse/RAIIObjectsForParser.h"
#include "clang/Sema/DeclSpec.h"
#include "clang/Sema/PrettyDeclStackTrace.h"
#include "clang/Sema/Scope.h"
Modified: cfe/trunk/lib/Parse/ParseOpenMP.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Parse/ParseOpenMP.cpp?rev=298606&r1=298605&r2=298606&view=diff
==============================================================================
--- cfe/trunk/lib/Parse/ParseOpenMP.cpp (original)
+++ cfe/trunk/lib/Parse/ParseOpenMP.cpp Thu Mar 23 10:11:07 2017
@@ -11,11 +11,11 @@
///
//===----------------------------------------------------------------------===//
-#include "RAIIObjectsForParser.h"
#include "clang/AST/ASTContext.h"
#include "clang/AST/StmtOpenMP.h"
#include "clang/Parse/ParseDiagnostic.h"
#include "clang/Parse/Parser.h"
+#include "clang/Parse/RAIIObjectsForParser.h"
#include "clang/Sema/Scope.h"
#include "llvm/ADT/PointerIntPair.h"
Modified: cfe/trunk/lib/Parse/ParsePragma.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Parse/ParsePragma.cpp?rev=298606&r1=298605&r2=298606&view=diff
==============================================================================
--- cfe/trunk/lib/Parse/ParsePragma.cpp (original)
+++ cfe/trunk/lib/Parse/ParsePragma.cpp Thu Mar 23 10:11:07 2017
@@ -11,13 +11,13 @@
//
//===----------------------------------------------------------------------===//
-#include "RAIIObjectsForParser.h"
#include "clang/AST/ASTContext.h"
#include "clang/Basic/PragmaKinds.h"
#include "clang/Basic/TargetInfo.h"
#include "clang/Lex/Preprocessor.h"
#include "clang/Parse/ParseDiagnostic.h"
#include "clang/Parse/Parser.h"
+#include "clang/Parse/RAIIObjectsForParser.h"
#include "clang/Sema/LoopHint.h"
#include "clang/Sema/Scope.h"
#include "llvm/ADT/StringSwitch.h"
Modified: cfe/trunk/lib/Parse/ParseStmt.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Parse/ParseStmt.cpp?rev=298606&r1=298605&r2=298606&view=diff
==============================================================================
--- cfe/trunk/lib/Parse/ParseStmt.cpp (original)
+++ cfe/trunk/lib/Parse/ParseStmt.cpp Thu Mar 23 10:11:07 2017
@@ -12,10 +12,10 @@
//
//===----------------------------------------------------------------------===//
-#include "RAIIObjectsForParser.h"
#include "clang/Basic/Attributes.h"
#include "clang/Basic/PrettyStackTrace.h"
#include "clang/Parse/Parser.h"
+#include "clang/Parse/RAIIObjectsForParser.h"
#include "clang/Sema/DeclSpec.h"
#include "clang/Sema/LoopHint.h"
#include "clang/Sema/PrettyDeclStackTrace.h"
Modified: cfe/trunk/lib/Parse/ParseStmtAsm.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Parse/ParseStmtAsm.cpp?rev=298606&r1=298605&r2=298606&view=diff
==============================================================================
--- cfe/trunk/lib/Parse/ParseStmtAsm.cpp (original)
+++ cfe/trunk/lib/Parse/ParseStmtAsm.cpp Thu Mar 23 10:11:07 2017
@@ -12,10 +12,10 @@
//===----------------------------------------------------------------------===//
#include "clang/Parse/Parser.h"
-#include "RAIIObjectsForParser.h"
#include "clang/AST/ASTContext.h"
#include "clang/Basic/Diagnostic.h"
#include "clang/Basic/TargetInfo.h"
+#include "clang/Parse/RAIIObjectsForParser.h"
#include "llvm/ADT/SmallString.h"
#include "llvm/ADT/StringExtras.h"
#include "llvm/MC/MCAsmInfo.h"
Modified: cfe/trunk/lib/Parse/ParseTemplate.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Parse/ParseTemplate.cpp?rev=298606&r1=298605&r2=298606&view=diff
==============================================================================
--- cfe/trunk/lib/Parse/ParseTemplate.cpp (original)
+++ cfe/trunk/lib/Parse/ParseTemplate.cpp Thu Mar 23 10:11:07 2017
@@ -11,11 +11,11 @@
//
//===----------------------------------------------------------------------===//
-#include "RAIIObjectsForParser.h"
#include "clang/AST/ASTContext.h"
#include "clang/AST/DeclTemplate.h"
#include "clang/Parse/ParseDiagnostic.h"
#include "clang/Parse/Parser.h"
+#include "clang/Parse/RAIIObjectsForParser.h"
#include "clang/Sema/DeclSpec.h"
#include "clang/Sema/ParsedTemplate.h"
#include "clang/Sema/Scope.h"
Modified: cfe/trunk/lib/Parse/Parser.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Parse/Parser.cpp?rev=298606&r1=298605&r2=298606&view=diff
==============================================================================
--- cfe/trunk/lib/Parse/Parser.cpp (original)
+++ cfe/trunk/lib/Parse/Parser.cpp Thu Mar 23 10:11:07 2017
@@ -12,11 +12,11 @@
//===----------------------------------------------------------------------===//
#include "clang/Parse/Parser.h"
-#include "RAIIObjectsForParser.h"
#include "clang/AST/ASTConsumer.h"
#include "clang/AST/ASTContext.h"
#include "clang/AST/DeclTemplate.h"
#include "clang/Parse/ParseDiagnostic.h"
+#include "clang/Parse/RAIIObjectsForParser.h"
#include "clang/Sema/DeclSpec.h"
#include "clang/Sema/ParsedTemplate.h"
#include "clang/Sema/Scope.h"
Removed: cfe/trunk/lib/Parse/RAIIObjectsForParser.h
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Parse/RAIIObjectsForParser.h?rev=298605&view=auto
==============================================================================
--- cfe/trunk/lib/Parse/RAIIObjectsForParser.h (original)
+++ cfe/trunk/lib/Parse/RAIIObjectsForParser.h (removed)
@@ -1,447 +0,0 @@
-//===--- RAIIObjectsForParser.h - RAII helpers for the parser ---*- C++ -*-===//
-//
-// The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-//
-// This file defines and implements the some simple RAII objects that are used
-// by the parser to manage bits in recursion.
-//
-//===----------------------------------------------------------------------===//
-
-#ifndef LLVM_CLANG_LIB_PARSE_RAIIOBJECTSFORPARSER_H
-#define LLVM_CLANG_LIB_PARSE_RAIIOBJECTSFORPARSER_H
-
-#include "clang/Parse/ParseDiagnostic.h"
-#include "clang/Parse/Parser.h"
-#include "clang/Sema/DelayedDiagnostic.h"
-#include "clang/Sema/Sema.h"
-
-namespace clang {
- // TODO: move ParsingClassDefinition here.
- // TODO: move TentativeParsingAction here.
-
- /// \brief A RAII object used to temporarily suppress access-like
- /// checking. Access-like checks are those associated with
- /// controlling the use of a declaration, like C++ access control
- /// errors and deprecation warnings. They are contextually
- /// dependent, in that they can only be resolved with full
- /// information about what's being declared. They are also
- /// suppressed in certain contexts, like the template arguments of
- /// an explicit instantiation. However, those suppression contexts
- /// cannot necessarily be fully determined in advance; for
- /// example, something starting like this:
- /// template <> class std::vector<A::PrivateType>
- /// might be the entirety of an explicit instantiation:
- /// template <> class std::vector<A::PrivateType>;
- /// or just an elaborated type specifier:
- /// template <> class std::vector<A::PrivateType> make_vector<>();
- /// Therefore this class collects all the diagnostics and permits
- /// them to be re-delayed in a new context.
- class SuppressAccessChecks {
- Sema &S;
- sema::DelayedDiagnosticPool DiagnosticPool;
- Sema::ParsingDeclState State;
- bool Active;
-
- public:
- /// Begin suppressing access-like checks
- SuppressAccessChecks(Parser &P, bool activate = true)
- : S(P.getActions()), DiagnosticPool(nullptr) {
- if (activate) {
- State = S.PushParsingDeclaration(DiagnosticPool);
- Active = true;
- } else {
- Active = false;
- }
- }
- SuppressAccessChecks(SuppressAccessChecks &&Other)
- : S(Other.S), DiagnosticPool(std::move(Other.DiagnosticPool)),
- State(Other.State), Active(Other.Active) {
- Other.Active = false;
- }
- void operator=(SuppressAccessChecks &&Other) = delete;
-
- void done() {
- assert(Active && "trying to end an inactive suppression");
- S.PopParsingDeclaration(State, nullptr);
- Active = false;
- }
-
- void redelay() {
- assert(!Active && "redelaying without having ended first");
- if (!DiagnosticPool.pool_empty())
- S.redelayDiagnostics(DiagnosticPool);
- assert(DiagnosticPool.pool_empty());
- }
-
- ~SuppressAccessChecks() {
- if (Active) done();
- }
- };
-
- /// \brief RAII object used to inform the actions that we're
- /// currently parsing a declaration. This is active when parsing a
- /// variable's initializer, but not when parsing the body of a
- /// class or function definition.
- class ParsingDeclRAIIObject {
- Sema &Actions;
- sema::DelayedDiagnosticPool DiagnosticPool;
- Sema::ParsingDeclState State;
- bool Popped;
-
- ParsingDeclRAIIObject(const ParsingDeclRAIIObject &) = delete;
- void operator=(const ParsingDeclRAIIObject &) = delete;
-
- public:
- enum NoParent_t { NoParent };
- ParsingDeclRAIIObject(Parser &P, NoParent_t _)
- : Actions(P.getActions()), DiagnosticPool(nullptr) {
- push();
- }
-
- /// Creates a RAII object whose pool is optionally parented by another.
- ParsingDeclRAIIObject(Parser &P,
- const sema::DelayedDiagnosticPool *parentPool)
- : Actions(P.getActions()), DiagnosticPool(parentPool) {
- push();
- }
-
- /// Creates a RAII object and, optionally, initialize its
- /// diagnostics pool by stealing the diagnostics from another
- /// RAII object (which is assumed to be the current top pool).
- ParsingDeclRAIIObject(Parser &P, ParsingDeclRAIIObject *other)
- : Actions(P.getActions()),
- DiagnosticPool(other ? other->DiagnosticPool.getParent() : nullptr) {
- if (other) {
- DiagnosticPool.steal(other->DiagnosticPool);
- other->abort();
- }
- push();
- }
-
- ~ParsingDeclRAIIObject() {
- abort();
- }
-
- sema::DelayedDiagnosticPool &getDelayedDiagnosticPool() {
- return DiagnosticPool;
- }
- const sema::DelayedDiagnosticPool &getDelayedDiagnosticPool() const {
- return DiagnosticPool;
- }
-
- /// Resets the RAII object for a new declaration.
- void reset() {
- abort();
- push();
- }
-
- /// Signals that the context was completed without an appropriate
- /// declaration being parsed.
- void abort() {
- pop(nullptr);
- }
-
- void complete(Decl *D) {
- assert(!Popped && "ParsingDeclaration has already been popped!");
- pop(D);
- }
-
- /// Unregister this object from Sema, but remember all the
- /// diagnostics that were emitted into it.
- void abortAndRemember() {
- pop(nullptr);
- }
-
- private:
- void push() {
- State = Actions.PushParsingDeclaration(DiagnosticPool);
- Popped = false;
- }
-
- void pop(Decl *D) {
- if (!Popped) {
- Actions.PopParsingDeclaration(State, D);
- Popped = true;
- }
- }
- };
-
- /// A class for parsing a DeclSpec.
- class ParsingDeclSpec : public DeclSpec {
- ParsingDeclRAIIObject ParsingRAII;
-
- public:
- ParsingDeclSpec(Parser &P)
- : DeclSpec(P.getAttrFactory()),
- ParsingRAII(P, ParsingDeclRAIIObject::NoParent) {}
- ParsingDeclSpec(Parser &P, ParsingDeclRAIIObject *RAII)
- : DeclSpec(P.getAttrFactory()),
- ParsingRAII(P, RAII) {}
-
- const sema::DelayedDiagnosticPool &getDelayedDiagnosticPool() const {
- return ParsingRAII.getDelayedDiagnosticPool();
- }
-
- void complete(Decl *D) {
- ParsingRAII.complete(D);
- }
-
- void abort() {
- ParsingRAII.abort();
- }
- };
-
- /// A class for parsing a declarator.
- class ParsingDeclarator : public Declarator {
- ParsingDeclRAIIObject ParsingRAII;
-
- public:
- ParsingDeclarator(Parser &P, const ParsingDeclSpec &DS, TheContext C)
- : Declarator(DS, C), ParsingRAII(P, &DS.getDelayedDiagnosticPool()) {
- }
-
- const ParsingDeclSpec &getDeclSpec() const {
- return static_cast<const ParsingDeclSpec&>(Declarator::getDeclSpec());
- }
-
- ParsingDeclSpec &getMutableDeclSpec() const {
- return const_cast<ParsingDeclSpec&>(getDeclSpec());
- }
-
- void clear() {
- Declarator::clear();
- ParsingRAII.reset();
- }
-
- void complete(Decl *D) {
- ParsingRAII.complete(D);
- }
- };
-
- /// A class for parsing a field declarator.
- class ParsingFieldDeclarator : public FieldDeclarator {
- ParsingDeclRAIIObject ParsingRAII;
-
- public:
- ParsingFieldDeclarator(Parser &P, const ParsingDeclSpec &DS)
- : FieldDeclarator(DS), ParsingRAII(P, &DS.getDelayedDiagnosticPool()) {
- }
-
- const ParsingDeclSpec &getDeclSpec() const {
- return static_cast<const ParsingDeclSpec&>(D.getDeclSpec());
- }
-
- ParsingDeclSpec &getMutableDeclSpec() const {
- return const_cast<ParsingDeclSpec&>(getDeclSpec());
- }
-
- void complete(Decl *D) {
- ParsingRAII.complete(D);
- }
- };
-
- /// ExtensionRAIIObject - This saves the state of extension warnings when
- /// constructed and disables them. When destructed, it restores them back to
- /// the way they used to be. This is used to handle __extension__ in the
- /// parser.
- class ExtensionRAIIObject {
- ExtensionRAIIObject(const ExtensionRAIIObject &) = delete;
- void operator=(const ExtensionRAIIObject &) = delete;
-
- DiagnosticsEngine &Diags;
- public:
- ExtensionRAIIObject(DiagnosticsEngine &diags) : Diags(diags) {
- Diags.IncrementAllExtensionsSilenced();
- }
-
- ~ExtensionRAIIObject() {
- Diags.DecrementAllExtensionsSilenced();
- }
- };
-
- /// ColonProtectionRAIIObject - This sets the Parser::ColonIsSacred bool and
- /// restores it when destroyed. This says that "foo:" should not be
- /// considered a possible typo for "foo::" for error recovery purposes.
- class ColonProtectionRAIIObject {
- Parser &P;
- bool OldVal;
- public:
- ColonProtectionRAIIObject(Parser &p, bool Value = true)
- : P(p), OldVal(P.ColonIsSacred) {
- P.ColonIsSacred = Value;
- }
-
- /// restore - This can be used to restore the state early, before the dtor
- /// is run.
- void restore() {
- P.ColonIsSacred = OldVal;
- }
-
- ~ColonProtectionRAIIObject() {
- restore();
- }
- };
-
- /// \brief RAII object that makes '>' behave either as an operator
- /// or as the closing angle bracket for a template argument list.
- class GreaterThanIsOperatorScope {
- bool &GreaterThanIsOperator;
- bool OldGreaterThanIsOperator;
- public:
- GreaterThanIsOperatorScope(bool >IO, bool Val)
- : GreaterThanIsOperator(GTIO), OldGreaterThanIsOperator(GTIO) {
- GreaterThanIsOperator = Val;
- }
-
- ~GreaterThanIsOperatorScope() {
- GreaterThanIsOperator = OldGreaterThanIsOperator;
- }
- };
-
- class InMessageExpressionRAIIObject {
- bool &InMessageExpression;
- bool OldValue;
-
- public:
- InMessageExpressionRAIIObject(Parser &P, bool Value)
- : InMessageExpression(P.InMessageExpression),
- OldValue(P.InMessageExpression) {
- InMessageExpression = Value;
- }
-
- ~InMessageExpressionRAIIObject() {
- InMessageExpression = OldValue;
- }
- };
-
- /// \brief RAII object that makes sure paren/bracket/brace count is correct
- /// after declaration/statement parsing, even when there's a parsing error.
- class ParenBraceBracketBalancer {
- Parser &P;
- unsigned short ParenCount, BracketCount, BraceCount;
- public:
- ParenBraceBracketBalancer(Parser &p)
- : P(p), ParenCount(p.ParenCount), BracketCount(p.BracketCount),
- BraceCount(p.BraceCount) { }
-
- ~ParenBraceBracketBalancer() {
- P.ParenCount = ParenCount;
- P.BracketCount = BracketCount;
- P.BraceCount = BraceCount;
- }
- };
-
- class PoisonSEHIdentifiersRAIIObject {
- PoisonIdentifierRAIIObject Ident_AbnormalTermination;
- PoisonIdentifierRAIIObject Ident_GetExceptionCode;
- PoisonIdentifierRAIIObject Ident_GetExceptionInfo;
- PoisonIdentifierRAIIObject Ident__abnormal_termination;
- PoisonIdentifierRAIIObject Ident__exception_code;
- PoisonIdentifierRAIIObject Ident__exception_info;
- PoisonIdentifierRAIIObject Ident___abnormal_termination;
- PoisonIdentifierRAIIObject Ident___exception_code;
- PoisonIdentifierRAIIObject Ident___exception_info;
- public:
- PoisonSEHIdentifiersRAIIObject(Parser &Self, bool NewValue)
- : Ident_AbnormalTermination(Self.Ident_AbnormalTermination, NewValue),
- Ident_GetExceptionCode(Self.Ident_GetExceptionCode, NewValue),
- Ident_GetExceptionInfo(Self.Ident_GetExceptionInfo, NewValue),
- Ident__abnormal_termination(Self.Ident__abnormal_termination, NewValue),
- Ident__exception_code(Self.Ident__exception_code, NewValue),
- Ident__exception_info(Self.Ident__exception_info, NewValue),
- Ident___abnormal_termination(Self.Ident___abnormal_termination, NewValue),
- Ident___exception_code(Self.Ident___exception_code, NewValue),
- Ident___exception_info(Self.Ident___exception_info, NewValue) {
- }
- };
-
- /// \brief RAII class that helps handle the parsing of an open/close delimiter
- /// pair, such as braces { ... } or parentheses ( ... ).
- class BalancedDelimiterTracker : public GreaterThanIsOperatorScope {
- Parser& P;
- tok::TokenKind Kind, Close, FinalToken;
- SourceLocation (Parser::*Consumer)();
- SourceLocation LOpen, LClose;
-
- unsigned short &getDepth() {
- switch (Kind) {
- case tok::l_brace: return P.BraceCount;
- case tok::l_square: return P.BracketCount;
- case tok::l_paren: return P.ParenCount;
- default: llvm_unreachable("Wrong token kind");
- }
- }
-
- enum { MaxDepth = 256 };
-
- bool diagnoseOverflow();
- bool diagnoseMissingClose();
-
- public:
- BalancedDelimiterTracker(Parser& p, tok::TokenKind k,
- tok::TokenKind FinalToken = tok::semi)
- : GreaterThanIsOperatorScope(p.GreaterThanIsOperator, true),
- P(p), Kind(k), FinalToken(FinalToken)
- {
- switch (Kind) {
- default: llvm_unreachable("Unexpected balanced token");
- case tok::l_brace:
- Close = tok::r_brace;
- Consumer = &Parser::ConsumeBrace;
- break;
- case tok::l_paren:
- Close = tok::r_paren;
- Consumer = &Parser::ConsumeParen;
- break;
-
- case tok::l_square:
- Close = tok::r_square;
- Consumer = &Parser::ConsumeBracket;
- break;
- }
- }
-
- SourceLocation getOpenLocation() const { return LOpen; }
- SourceLocation getCloseLocation() const { return LClose; }
- SourceRange getRange() const { return SourceRange(LOpen, LClose); }
-
- bool consumeOpen() {
- if (!P.Tok.is(Kind))
- return true;
-
- if (getDepth() < P.getLangOpts().BracketDepth) {
- LOpen = (P.*Consumer)();
- return false;
- }
-
- return diagnoseOverflow();
- }
-
- bool expectAndConsume(unsigned DiagID = diag::err_expected,
- const char *Msg = "",
- tok::TokenKind SkipToTok = tok::unknown);
- bool consumeClose() {
- if (P.Tok.is(Close)) {
- LClose = (P.*Consumer)();
- return false;
- } else if (P.Tok.is(tok::semi) && P.NextToken().is(Close)) {
- SourceLocation SemiLoc = P.ConsumeToken();
- P.Diag(SemiLoc, diag::err_unexpected_semi)
- << Close << FixItHint::CreateRemoval(SourceRange(SemiLoc, SemiLoc));
- LClose = (P.*Consumer)();
- return false;
- }
-
- return diagnoseMissingClose();
- }
- void skipToEnd();
- };
-
-} // end namespace clang
-
-#endif
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