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tdevelop/lib/cppparser/parser.h

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/* This file is part of KDevelop
Copyright (C) 2002,2003 Roberto Raggi <roberto@tdevelop.org>
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public License
along with this library; see the file COPYING.LIB. If not, write to
the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA.
*/
#ifndef PARSER_H
#define PARSER_H
#include "ast.h"
#include <tqstring.h>
#include <tqstringlist.h>
#include <tqvaluelist.h>
#include <tqvaluestack.h>
#include <set>
#include <iostream>
struct ParserPrivateData;
class Driver;
class Lexer;
class Token;
struct Error;
class CommentFormatter {
static inline bool isWhite( TQChar c ) {
return c.isSpace();
}
static void rStrip( TQString str, TQString& from ) {
if( str.isEmpty() ) return;
int i = 0;
int ip = from.length();
int s = from.length();
for( int a = s-1; a >= 0; a-- ) {
if( isWhite( from[a] ) ) {
continue;
} else {
if( from[a] == str[i] ) {
i++;
ip = a;
if( i == (int)str.length() ) break;
} else {
break;
}
}
}
if( ip != (int)from.length() ) from = from.left( ip );
}
static void strip( TQString str, TQString& from ) {
if( str.isEmpty() ) return;
int i = 0;
int ip = 0;
int s = from.length();
for( int a = 0; a < s; a++ ) {
if( isWhite( from[a] ) ) {
continue;
} else {
if( from[a] == str[i] ) {
i++;
ip = a+1;
if( i == (int)str.length() ) break;
} else {
break;
}
}
}
if( ip ) from = from.mid( ip );
}
public:
static TQString formatComment( TQString comment ) {
TQString ret;
int i = 0;
int s = comment.length();
while( i < s && comment[i] == '/' ) {
i++;
}
if( i > 1 ) {
ret = comment.mid( i );
} else {
///remove the star in each line
TQStringList lines = TQStringList::split( "\n", comment );
if( lines.isEmpty() ) return ret;
strip( "/**", lines.front() );
rStrip( "/**", lines.back() );
TQStringList::iterator it = lines.begin();
++it;
TQStringList::iterator eit = lines.end();
if( it != lines.end() ) {
--eit;
for( ; it != eit; ++it ) {
strip( "*", *it );
}
if( lines.front().stripWhiteSpace().isEmpty() )
lines.pop_front();
if( lines.back().stripWhiteSpace().isEmpty() )
lines.pop_back();
}
ret = lines.join( "\n" );
}
return ret;
}
};
class Comment {
TQString m_text;
int m_line;
bool m_formatted;
void format() {
if( m_formatted ) return;
m_formatted = true;
m_text = CommentFormatter::formatComment( m_text );
}
public:
Comment( TQString text = "", int line = -1 ) : m_text( text ), m_line( line ), m_formatted(false) {
}
Comment( int line ) : m_line( line ) {
}
void operator += ( Comment rhs ) {
format();
rhs.format();
m_text += " " + rhs.m_text;
}
operator bool() const {
return !m_text.isEmpty();
}
operator TQString() {
format();
return m_text;
}
inline int line() const {
return m_line;
}
bool operator < ( Comment& rhs ) const {
return m_line < rhs.m_line;
}
bool isSame ( const Comment& rhs ) {
if( rhs.m_formatted ) format();
return m_text == rhs.m_text;
}
struct cmp {
bool operator () ( const Comment& c1, const Comment& c2 ) const {
return c1.line() < c2.line();
}
};
};
class CommentStore {
private:
typedef std::set< Comment, Comment::cmp > CommentSet;
CommentSet m_comments;
public:
///Returns the comment nearest to "end"(inclusive), and returns & removes it
Comment getCommentInRange( int end, int start = 0 ) {
CommentSet::iterator it = m_comments.lower_bound( end );
while( it != m_comments.begin() && (*it).line() > end ) {
--it;
}
if( it != m_comments.end() && (*it).line() >= start && (*it).line() <= end ) {
Comment ret = *it;
m_comments.erase( it );
return ret;
} else {
return Comment();
}
}
///Returns and removes the comment in the line
Comment getComment( int line ) {
CommentSet::iterator it = m_comments.find( line );
if( it != m_comments.end() ) {
Comment ret = *it;
m_comments.erase( it );
return ret;
} else {
return Comment();
}
}
void addComment( Comment comment ) {
CommentSet::iterator it = m_comments.find( comment );
if( it != m_comments.end() ) {
if( comment.isSame( *it ) ) return;
Comment c = *it;
c += comment;
comment = c;
m_comments.erase( it );
}
m_comments.insert( comment );
}
///Does not delete the comment
Comment latestComment() {
CommentSet::iterator it = m_comments.end();
if( it == m_comments.begin() ) return Comment();
--it;
return *it;
}
void clear() {
m_comments.clear();
}
};
class Parser
{
public:
Parser( Driver* driver, Lexer* lexer );
virtual ~Parser();
private:
virtual bool reportError( const Error& err );
/** @todo remove*/ virtual bool reportError( const TQString& msg );
/** @todo remove*/ virtual void syntaxError();
public /*rules*/ :
bool parseTranslationUnit( TranslationUnitAST::Node& node );
bool parseDeclaration( DeclarationAST::Node& node );
bool parseBlockDeclaration( DeclarationAST::Node& node );
bool parseLinkageSpecification( DeclarationAST::Node& node );
bool parseLinkageBody( LinkageBodyAST::Node& node );
bool parseNamespace( DeclarationAST::Node& node );
bool parseNamespaceAliasDefinition( DeclarationAST::Node& node );
bool parseUsing( DeclarationAST::Node& node );
bool parseUsingDirective( DeclarationAST::Node& node );
bool parseTypedef( DeclarationAST::Node& node );
bool parseAsmDefinition( DeclarationAST::Node& node );
bool parseTemplateDeclaration( DeclarationAST::Node& node );
bool parseDeclarationInternal( DeclarationAST::Node& node );
bool parseUnqualifiedName( ClassOrNamespaceNameAST::Node& node );
bool parseStringLiteral( AST::Node& node );
bool parseName( NameAST::Node& node );
bool parseOperatorFunctionId( AST::Node& node );
bool parseTemplateArgumentList( TemplateArgumentListAST::Node& node, bool reportError=true );
bool parseOperator( AST::Node& node );
bool parseCvQualify( GroupAST::Node& node );
bool parseSimpleTypeSpecifier( TypeSpecifierAST::Node& node );
bool parsePtrOperator( AST::Node& node );
bool parseTemplateArgument( AST::Node& node );
bool parseTypeSpecifier( TypeSpecifierAST::Node& node );
bool parseTypeSpecifierOrClassSpec( TypeSpecifierAST::Node& node );
bool parseDeclarator( DeclaratorAST::Node& node );
bool parseTemplateParameterList( TemplateParameterListAST::Node& node );
bool parseTemplateParameter( TemplateParameterAST::Node& node );
bool parseStorageClassSpecifier( GroupAST::Node& node );
bool parseFunctionSpecifier( GroupAST::Node& node );
bool parseInitDeclaratorList( InitDeclaratorListAST::Node& node );
bool parseInitDeclarator( InitDeclaratorAST::Node& node );
bool parseParameterDeclarationClause( ParameterDeclarationClauseAST::Node& node );
bool parseCtorInitializer( AST::Node& node );
bool parsePtrToMember( AST::Node& node );
bool parseEnumSpecifier( TypeSpecifierAST::Node& node );
bool parseClassSpecifier( TypeSpecifierAST::Node& node );
bool parseWinDeclSpec( GroupAST::Node& node );
bool parseElaboratedTypeSpecifier( TypeSpecifierAST::Node& node );
bool parseDeclaratorId( NameAST::Node& node );
bool parseExceptionSpecification( GroupAST::Node& node );
bool parseEnumerator( EnumeratorAST::Node& node );
bool parseTypeParameter( TypeParameterAST::Node& node );
bool parseParameterDeclaration( ParameterDeclarationAST::Node& node );
bool parseTypeId( AST::Node& node );
bool parseAbstractDeclarator( DeclaratorAST::Node& node );
bool parseParameterDeclarationList( ParameterDeclarationListAST::Node& node );
bool parseMemberSpecification( DeclarationAST::Node& node );
bool parseAccessSpecifier( AST::Node& node );
bool parseTypeIdList( GroupAST::Node& node );
bool parseMemInitializerList( AST::Node& node );
bool parseMemInitializer( AST::Node& node );
bool parseInitializer( AST::Node& node );
bool parseBaseClause( BaseClauseAST::Node& node );
bool parseBaseSpecifier( BaseSpecifierAST::Node& node );
bool parseInitializerClause( AST::Node& node );
bool parseMemInitializerId( NameAST::Node& node );
bool parseFunctionBody( StatementListAST::Node& node );
// expression
bool skipExpression( AST::Node& node );
bool skipCommaExpression( AST::Node& node );
bool skipExpressionStatement( StatementAST::Node& node );
bool parseExpression( AST::Node& node );
bool parsePrimaryExpression( AST::Node& node );
bool parsePostfixExpression( AST::Node& node );
bool parseUnaryExpression( AST::Node& node );
bool parseNewExpression( AST::Node& node );
bool parseNewTypeId( AST::Node& node );
bool parseNewDeclarator( AST::Node& node );
bool parseNewInitializer( AST::Node& node );
bool parseDeleteExpression( AST::Node& node );
bool parseCastExpression( AST::Node& node );
bool parsePmExpression( AST::Node& node );
bool parseMultiplicativeExpression( AST::Node& node );
bool parseAdditiveExpression( AST::Node& node );
bool parseShiftExpression( AST::Node& node );
bool parseRelationalExpression( AST::Node& node, bool templArgs=false );
bool parseEqualityExpression( AST::Node& node, bool templArgs=false );
bool parseAndExpression( AST::Node& node, bool templArgs=false );
bool parseExclusiveOrExpression( AST::Node& node, bool templArgs=false );
bool parseInclusiveOrExpression( AST::Node& node, bool templArgs=false );
bool parseLogicalAndExpression( AST::Node& node, bool templArgs=false );
bool parseLogicalOrExpression( AST::Node& node, bool templArgs=false );
bool parseConditionalExpression( AST::Node& node );
bool parseAssignmentExpression( AST::Node& node );
bool parseConstantExpression( AST::Node& node );
bool parseCommaExpression( AST::Node& node );
bool parseThrowExpression( AST::Node& node );
// statement
bool parseCondition( ConditionAST::Node& node );
bool parseStatement( StatementAST::Node& node );
bool parseWhileStatement( StatementAST::Node& node );
bool parseDoStatement( StatementAST::Node& node );
bool parseForStatement( StatementAST::Node& node );
bool parseForEachStatement( StatementAST::Node& node ); // qt4 [erbsland]
bool parseCompoundStatement( StatementAST::Node& node );
bool parseForInitStatement( StatementAST::Node& node );
bool parseIfStatement( StatementAST::Node& node );
bool parseSwitchStatement( StatementAST::Node& node );
bool parseLabeledStatement( StatementAST::Node& node );
bool parseDeclarationStatement( StatementAST::Node& node );
bool parseTryBlockStatement( StatementAST::Node& node );
// objective c
bool parseObjcDef( DeclarationAST::Node& node );
bool parseObjcClassDef( DeclarationAST::Node& node );
bool parseObjcClassDecl( DeclarationAST::Node& node );
bool parseObjcProtocolDecl( DeclarationAST::Node& node );
bool parseObjcAliasDecl( DeclarationAST::Node& node );
bool parseObjcProtocolDef( DeclarationAST::Node& node );
bool parseObjcMethodDef( DeclarationAST::Node& node );
bool parseIvarDeclList( AST::Node& node );
bool parseIvarDecls( AST::Node& node );
bool parseIvarDecl( AST::Node& node );
bool parseIvars( AST::Node& node );
bool parseIvarDeclarator( AST::Node& node );
bool parseMethodDecl( AST::Node& node );
bool parseUnarySelector( AST::Node& node );
bool parseKeywordSelector( AST::Node& node );
bool parseSelector( AST::Node& node );
bool parseKeywordDecl( AST::Node& node );
bool parseReceiver( AST::Node& node );
bool parseObjcMessageExpr( AST::Node& node );
bool parseMessageArgs( AST::Node& node );
bool parseKeywordExpr( AST::Node& node );
bool parseKeywordArgList( AST::Node& node );
bool parseKeywordArg( AST::Node& node );
bool parseReservedWord( AST::Node& node );
bool parseMyParms( AST::Node& node );
bool parseMyParm( AST::Node& node );
bool parseOptParmList( AST::Node& node );
bool parseObjcSelectorExpr( AST::Node& node );
bool parseSelectorArg( AST::Node& node );
bool parseKeywordNameList( AST::Node& node );
bool parseKeywordName( AST::Node& node );
bool parseObjcEncodeExpr( AST::Node& node );
bool parseObjcString( AST::Node& node );
bool parseProtocolRefs( AST::Node& node );
bool parseIdentifierList( GroupAST::Node& node );
bool parseIdentifierColon( AST::Node& node );
bool parseObjcProtocolExpr( AST::Node& node );
bool parseObjcOpenBracketExpr( AST::Node& node );
bool parseObjcCloseBracket( AST::Node& node );
void nextToken( bool skipComments = true );
///parses all comments until the end of the line
Comment comment();
void preparseLineComments( int line );
void processComment( int offset = 0 );
void clearComment( );
bool skipUntil( int token );
bool skipUntilDeclaration();
bool skipUntilStatement();
bool skip( int l, int r );
TQString toString( int start, int end, const TQString& sep=" " ) const;
private:
int currentLine();
CommentStore m_commentStore;
template<class Type>
void eventuallyTakeComment( int startLn, int line, Type& ast );
template<class Type>
void eventuallyTakeComment( Type& ast );
ParserPrivateData* d;
Driver* m_driver;
Lexer* lex;
Comment m_currentComment;
int m_problems;
int m_maxProblems;
bool objcp;
private:
Parser( const Parser& source );
void operator = ( const Parser& source );
};
#endif
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