forked from qt-creator/qt-creator
158b07c9c8
The code model failed to parse the noexcept operator which is often used in noexcept specifiers, e.g.: "void f() noexcept(noexcept(g()));" Consequently some c++11 headers such as unordered_map, array and unordered_set could not be parsed and no code completition was available. I have created the NoExceptOperatorExpressionAST class which is created whenever a noexcept token is found in an expression with operator precedence. The noExcept test case in the cplusplus/cxx11 test now contains a function that uses the noexcept operator. Fixed noexcept operator parsing Added the test requested by Sergey Shambir, which then revealed that i had not implemeneted the noexpect operator parsing according to the c++ specification. As stated here http://cpp0x.centaur.ath.cx/expr.unary.noexcept.html the noexcept operator is a unary-expression that contains an expression (and not a constant-expression). This should now be fixed. Change-Id: Id4a99a43b660bd83e7680274491d99a698b57094 Reviewed-by: Nikolai Kosjar <nikolai.kosjar@theqtcompany.com>
342 lines
16 KiB
C++
342 lines
16 KiB
C++
// Copyright (c) 2008 Roberto Raggi <roberto.raggi@gmail.com>
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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// THE SOFTWARE.
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#ifndef CPLUSPLUS_PARSER_H
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#define CPLUSPLUS_PARSER_H
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#include "CPlusPlusForwardDeclarations.h"
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#include "ASTfwd.h"
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#include "Token.h"
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#include "TranslationUnit.h"
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#include "MemoryPool.h"
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#include <map>
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#include <stack>
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namespace CPlusPlus {
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class CPLUSPLUS_EXPORT Parser
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{
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public:
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Parser(TranslationUnit *translationUnit);
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~Parser();
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bool parseTranslationUnit(TranslationUnitAST *&node);
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public:
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bool parseExpressionList(ExpressionListAST *&node);
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bool parseAbstractCoreDeclarator(DeclaratorAST *&node, SpecifierListAST *decl_specifier_list);
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bool parseAbstractDeclarator(DeclaratorAST *&node, SpecifierListAST *decl_specifier_list);
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bool parseEmptyDeclaration(DeclarationAST *&node);
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bool parseAccessDeclaration(DeclarationAST *&node);
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bool parseQtPropertyDeclaration(DeclarationAST *&node);
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bool parseQtEnumDeclaration(DeclarationAST *&node);
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bool parseQtFlags(DeclarationAST *&node);
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bool parseQtInterfaces(DeclarationAST *&node);
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bool parseAdditiveExpression(ExpressionAST *&node);
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bool parseAndExpression(ExpressionAST *&node);
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bool parseAsmDefinition(DeclarationAST *&node);
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bool parseAsmOperandList();
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bool parseAsmOperand();
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bool parseAsmClobberList();
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bool parseAssignmentExpression(ExpressionAST *&node);
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bool parseBaseClause(BaseSpecifierListAST *&node);
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bool parseBaseSpecifier(BaseSpecifierListAST *&node);
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bool parseBlockDeclaration(DeclarationAST *&node);
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bool parseCppCastExpression(ExpressionAST *&node);
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bool parseCastExpression(ExpressionAST *&node);
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bool parseClassSpecifier(SpecifierListAST *&node);
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bool parseCommaExpression(ExpressionAST *&node);
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bool parseCompoundStatement(StatementAST *&node);
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bool parseBreakStatement(StatementAST *&node);
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bool parseContinueStatement(StatementAST *&node);
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bool parseGotoStatement(StatementAST *&node);
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bool parseReturnStatement(StatementAST *&node);
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bool parseCondition(ExpressionAST *&node);
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bool parseConditionalExpression(ExpressionAST *&node);
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bool parseConstantExpression(ExpressionAST *&node);
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bool parseCtorInitializer(CtorInitializerAST *&node);
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bool parseCvQualifiers(SpecifierListAST *&node);
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bool parseRefQualifier(unsigned &ref_qualifier);
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bool parseOverrideFinalQualifiers(SpecifierListAST *&node);
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bool parseDeclaratorOrAbstractDeclarator(DeclaratorAST *&node, SpecifierListAST *decl_specifier_list);
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bool parseDeclaration(DeclarationAST *&node);
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bool parseSimpleDeclaration(DeclarationAST *&node, ClassSpecifierAST *declaringClass = 0);
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bool parseDeclarationStatement(StatementAST *&node);
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bool parseCoreDeclarator(DeclaratorAST *&node, SpecifierListAST *decl_specifier_list, ClassSpecifierAST *declaringClass);
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bool parseDeclarator(DeclaratorAST *&node, SpecifierListAST *decl_specifier_list, ClassSpecifierAST *declaringClass = 0);
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bool parseDeleteExpression(ExpressionAST *&node);
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bool parseDoStatement(StatementAST *&node);
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bool parseElaboratedTypeSpecifier(SpecifierListAST *&node);
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bool parseEnumSpecifier(SpecifierListAST *&node);
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bool parseEnumerator(EnumeratorListAST *&node);
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bool parseEqualityExpression(ExpressionAST *&node);
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bool parseExceptionDeclaration(ExceptionDeclarationAST *&node);
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bool parseExceptionSpecification(ExceptionSpecificationAST *&node);
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bool parseExclusiveOrExpression(ExpressionAST *&node);
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bool parseExpression(ExpressionAST *&node);
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bool parseExpressionOrDeclarationStatement(StatementAST *&node);
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bool parseExpressionStatement(StatementAST *&node);
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bool parseForInitStatement(StatementAST *&node);
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bool parseForeachStatement(StatementAST *&node);
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bool parseForStatement(StatementAST *&node);
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bool parseFunctionBody(StatementAST *&node);
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bool parseIfStatement(StatementAST *&node);
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bool parseInclusiveOrExpression(ExpressionAST *&node);
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bool parseInitDeclarator(DeclaratorAST *&node, SpecifierListAST *decl_specifier_list, ClassSpecifierAST *declaringClass);
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bool parseInitializerList(ExpressionListAST *&node);
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bool parseInitializer(ExpressionAST *&node, unsigned *equals_token);
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bool parseInitializerClause(ExpressionAST *&node);
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bool parseLabeledStatement(StatementAST *&node);
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bool parseLinkageBody(DeclarationAST *&node);
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bool parseLinkageSpecification(DeclarationAST *&node);
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bool parseLogicalAndExpression(ExpressionAST *&node);
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bool parseLogicalOrExpression(ExpressionAST *&node);
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bool parseMemInitializer(MemInitializerListAST *&node);
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bool parseMemInitializerList(MemInitializerListAST *&node);
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bool parseMemberSpecification(DeclarationAST *&node, ClassSpecifierAST *declaringClass);
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bool parseMultiplicativeExpression(ExpressionAST *&node);
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bool parseTemplateId(NameAST *&node, unsigned template_token = 0);
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bool parseClassOrNamespaceName(NameAST *&node);
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bool parseNameId(NameAST *&node);
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bool parseName(NameAST *&node, bool acceptTemplateId = true);
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bool parseNestedNameSpecifier(NestedNameSpecifierListAST *&node, bool acceptTemplateId);
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bool parseNestedNameSpecifierOpt(NestedNameSpecifierListAST *&name, bool acceptTemplateId);
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bool parseStaticAssertDeclaration(DeclarationAST *&node);
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bool parseNamespace(DeclarationAST *&node);
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bool parseNamespaceAliasDefinition(DeclarationAST *&node);
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bool parseNewArrayDeclarator(NewArrayDeclaratorListAST *&node);
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bool parseNewExpression(ExpressionAST *&node);
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bool parseExpressionListParen(ExpressionAST *&node);
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bool parseNewInitializer(ExpressionAST *&node);
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bool parseNewTypeId(NewTypeIdAST *&node);
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bool parseOperator(OperatorAST *&node);
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bool parseConversionFunctionId(NameAST *&node);
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bool parseOperatorFunctionId(NameAST *&node);
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bool parseParameterDeclaration(ParameterDeclarationAST *&node);
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bool parseParameterDeclarationClause(ParameterDeclarationClauseAST *&node);
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bool parseParameterDeclarationList(ParameterDeclarationListAST *&node);
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bool parsePmExpression(ExpressionAST *&node);
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bool parseTypeidExpression(ExpressionAST *&node);
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bool parseTypenameCallExpression(ExpressionAST *&node);
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bool parseCorePostfixExpression(ExpressionAST *&node);
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bool parsePostfixExpression(ExpressionAST *&node);
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bool parsePrimaryExpression(ExpressionAST *&node);
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bool parseNestedExpression(ExpressionAST *&node);
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bool parsePtrOperator(PtrOperatorListAST *&node);
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bool parseRelationalExpression(ExpressionAST *&node);
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bool parseShiftExpression(ExpressionAST *&node);
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bool parseStatement(StatementAST *&node, bool blockLabeledStatement = false);
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bool parseThisExpression(ExpressionAST *&node);
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bool parseBoolLiteral(ExpressionAST *&node);
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bool parseNumericLiteral(ExpressionAST *&node);
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bool parsePointerLiteral(ExpressionAST *&node);
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bool parseStringLiteral(ExpressionAST *&node);
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bool parseSwitchStatement(StatementAST *&node);
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bool parseTemplateArgument(ExpressionAST *&node);
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bool parseTemplateArgumentList(ExpressionListAST *&node);
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bool parseTemplateDeclaration(DeclarationAST *&node);
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bool parseTemplateParameter(DeclarationAST *&node);
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bool parseTemplateParameterList(DeclarationListAST *&node);
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bool parseThrowExpression(ExpressionAST *&node);
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bool parseNoExceptOperatorExpression(ExpressionAST *&node);
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bool parseTryBlockStatement(StatementAST *&node, CtorInitializerAST **placeholder);
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bool parseCatchClause(CatchClauseListAST *&node);
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bool parseTypeId(ExpressionAST *&node);
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bool parseTypeIdList(ExpressionListAST *&node);
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bool parseTypenameTypeParameter(DeclarationAST *&node);
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bool parseTemplateTypeParameter(DeclarationAST *&node);
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bool parseTypeParameter(DeclarationAST *&node);
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bool parseBuiltinTypeSpecifier(SpecifierListAST *&node);
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bool parseOptionalAttributeSpecifierSequence(SpecifierListAST *&attribute_list);
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bool parseAttributeSpecifier(SpecifierListAST *&attribute_list);
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bool parseGnuAttributeSpecifier(SpecifierListAST *&node);
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bool parseGnuAttributeList(GnuAttributeListAST *&node);
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bool parseDeclSpecifierSeq(SpecifierListAST *&node,
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bool noStorageSpecifiers = false,
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bool onlySimpleTypeSpecifiers = false);
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bool parseTrailingTypeSpecifierSeq(SpecifierListAST *&node)
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{ return parseDeclSpecifierSeq(node, true); }
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/// This actually parses a trailing-type-specifier sequence
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bool parseTypeSpecifier(SpecifierListAST *&node)
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{ return parseTrailingTypeSpecifierSeq(node); }
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bool parseSimpleTypeSpecifier(SpecifierListAST *&node)
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{ return parseDeclSpecifierSeq(node, true, true); }
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bool parseUnaryExpression(ExpressionAST *&node);
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bool parseUnqualifiedName(NameAST *&node, bool acceptTemplateId = true);
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bool parseUsing(DeclarationAST *&node);
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bool parseUsingDirective(DeclarationAST *&node);
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bool parseAliasDeclaration(DeclarationAST *&node);
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bool parseWhileStatement(StatementAST *&node);
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void parseExpressionWithOperatorPrecedence(ExpressionAST *&lhs, int minPrecedence);
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// Qt MOC run
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bool parseQtMethod(ExpressionAST *&node);
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// C++0x
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bool parseInitializer0x(ExpressionAST *&node, unsigned *equals_token);
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bool parseBraceOrEqualInitializer0x(ExpressionAST *&node);
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bool parseInitializerClause0x(ExpressionAST *&node);
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bool parseInitializerList0x(ExpressionListAST *&node);
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bool parseBracedInitList0x(ExpressionAST *&node);
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bool parseLambdaExpression(ExpressionAST *&node);
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bool parseLambdaIntroducer(LambdaIntroducerAST *&node);
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bool parseLambdaCapture(LambdaCaptureAST *&node);
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bool parseLambdaDeclarator(LambdaDeclaratorAST *&node);
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bool parseCapture(CaptureAST *&node);
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bool parseCaptureList(CaptureListAST *&node);
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bool parseTrailingReturnType(TrailingReturnTypeAST *&node);
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// ObjC++
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bool parseObjCExpression(ExpressionAST *&node);
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bool parseObjCClassForwardDeclaration(DeclarationAST *&node);
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bool parseObjCInterface(DeclarationAST *&node,
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SpecifierListAST *attributes = 0);
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bool parseObjCProtocol(DeclarationAST *&node,
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SpecifierListAST *attributes = 0);
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bool parseObjCTryStatement(StatementAST *&node);
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bool parseObjCSynchronizedStatement(StatementAST *&node);
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bool parseObjCThrowStatement(StatementAST *&node);
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bool parseObjCEncodeExpression(ExpressionAST *&node);
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bool parseObjCProtocolExpression(ExpressionAST *&node);
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bool parseObjCSelectorExpression(ExpressionAST *&node);
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bool parseObjCStringLiteral(ExpressionAST *&node);
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bool parseObjCMessageExpression(ExpressionAST *&node);
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bool parseObjCMessageReceiver(ExpressionAST *&node);
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bool parseObjCMessageArguments(ObjCSelectorAST *&selNode, ObjCMessageArgumentListAST *& argNode);
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bool parseObjCSelectorArg(ObjCSelectorArgumentAST *&selNode, ObjCMessageArgumentAST *&argNode);
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bool parseObjCMethodDefinitionList(DeclarationListAST *&node);
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bool parseObjCMethodDefinition(DeclarationAST *&node);
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bool parseObjCProtocolRefs(ObjCProtocolRefsAST *&node);
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bool parseObjClassInstanceVariables(ObjCInstanceVariablesDeclarationAST *&node);
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bool parseObjCInterfaceMemberDeclaration(DeclarationAST *&node);
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bool parseObjCInstanceVariableDeclaration(DeclarationAST *&node);
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bool parseObjCPropertyDeclaration(DeclarationAST *&node,
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SpecifierListAST *attributes = 0);
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bool parseObjCImplementation(DeclarationAST *&node);
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bool parseObjCMethodPrototype(ObjCMethodPrototypeAST *&node);
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bool parseObjCPropertyAttribute(ObjCPropertyAttributeAST *&node);
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bool parseObjCTypeName(ObjCTypeNameAST *&node);
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bool parseObjCSelector(unsigned &selector_token);
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bool parseObjCKeywordDeclaration(ObjCSelectorArgumentAST *&argument, ObjCMessageArgumentDeclarationAST *&node);
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bool parseObjCTypeQualifiers(unsigned &type_qualifier);
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bool peekAtObjCContextKeyword(int kind);
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bool parseObjCContextKeyword(int kind, unsigned &in_token);
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bool lookAtObjCSelector() const;
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// c99
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bool parseDesignatedInitializer(ExpressionAST *&node);
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bool parseDesignator(DesignatorAST *&node);
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bool skipUntil(int token);
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void skipUntilDeclaration();
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bool skipUntilStatement();
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bool skip(int l, int r);
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int find(int token, int stopAt);
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bool lookAtTypeParameter();
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bool lookAtCVQualifier() const;
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bool lookAtFunctionSpecifier() const;
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bool lookAtStorageClassSpecifier() const;
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bool lookAtBuiltinTypeSpecifier() const;
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bool lookAtClassKey() const;
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const Identifier *className(ClassSpecifierAST *ast) const;
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const Identifier *identifier(NameAST *name) const;
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void match(int kind, unsigned *token);
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bool maybeAmbiguousStatement(DeclarationStatementAST *ast, StatementAST *&node);
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bool maybeForwardOrClassDeclaration(SpecifierListAST *decl_specifier_seq) const;
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int peekAtQtContextKeyword() const;
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bool switchTemplateArguments(bool templateArguments);
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bool maybeSplitGreaterGreaterToken(int n = 1);
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bool blockErrors(bool block) { return _translationUnit->blockErrors(block); }
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void warning(unsigned index, const char *format, ...);
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void error(unsigned index, const char *format, ...);
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void fatal(unsigned index, const char *format, ...);
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inline const Token &tok(int i = 1) const
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{ return _translationUnit->tokenAt(_tokenIndex + i - 1); }
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inline int LA(int n = 1) const
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{ return _translationUnit->tokenKind(_tokenIndex + n - 1); }
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inline int consumeToken()
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{ return _tokenIndex++; }
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inline unsigned cursor() const
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{ return _tokenIndex; }
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void rewind(unsigned cursor);
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struct TemplateArgumentListEntry {
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unsigned index;
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unsigned cursor;
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ExpressionListAST *ast;
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TemplateArgumentListEntry(unsigned index = 0, unsigned cursor = 0, ExpressionListAST *ast = 0)
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: index(index), cursor(cursor), ast(ast) {}
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};
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TemplateArgumentListEntry *templateArgumentListEntry(unsigned tokenIndex);
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void clearTemplateArgumentList() { _templateArgumentList.clear(); }
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private:
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TranslationUnit *_translationUnit;
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Control *_control;
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MemoryPool *_pool;
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LanguageFeatures _languageFeatures;
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unsigned _tokenIndex;
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bool _templateArguments: 1;
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bool _inFunctionBody: 1;
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bool _inExpressionStatement: 1;
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int _expressionDepth;
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int _statementDepth;
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std::stack<int> _initializerClauseDepth;
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MemoryPool _expressionStatementTempPool;
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std::map<unsigned, TemplateArgumentListEntry> _templateArgumentList;
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class ASTCache;
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ASTCache *_astCache;
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ASTCache *_expressionStatementAstCache;
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private:
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Parser(const Parser& source);
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void operator =(const Parser& source);
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};
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} // namespace CPlusPlus
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#endif // CPLUSPLUS_PARSER_H
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