849 lines
27 KiB
C++
849 lines
27 KiB
C++
/*
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* Cppcheck - A tool for static C/C++ code analysis
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* Copyright (C) 2007-2014 Daniel Marjamäki and Cppcheck team.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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//---------------------------------------------------------------------------
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#ifndef tokenH
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#define tokenH
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//---------------------------------------------------------------------------
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#include <list>
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#include <string>
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#include <vector>
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#include <ostream>
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#include "config.h"
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#include "valueflow.h"
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#include "mathlib.h"
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class Scope;
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class Function;
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class Variable;
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class Settings;
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/// @addtogroup Core
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/// @{
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/**
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* @brief The token list that the TokenList generates is a linked-list of this class.
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*
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* Tokens are stored as strings. The "if", "while", etc are stored in plain text.
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* The reason the Token class is needed (instead of using the string class) is that some extra functionality is also needed for tokens:
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* - location of the token is stored (linenr, fileIndex)
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* - functions for classifying the token (isName, isNumber, isBoolean, isStandardType)
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*
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* The Token class also has other functions for management of token list, matching tokens, etc.
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*/
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class CPPCHECKLIB Token {
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private:
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Token **tokensBack;
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// Not implemented..
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Token();
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Token(const Token &);
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Token operator=(const Token &);
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public:
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enum Type {
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eVariable, eType, eFunction, eKeyword, eName, // Names: Variable (varId), Type (typeId, later), Function (FuncId, later), Language keyword, Name (unknown identifier)
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eNumber, eString, eChar, eBoolean, eLiteral, // Literals: Number, String, Character, User defined literal (C++11)
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eArithmeticalOp, eComparisonOp, eAssignmentOp, eLogicalOp, eBitOp, eIncDecOp, eExtendedOp, // Operators: Arithmetical, Comparison, Assignment, Logical, Bitwise, ++/--, Extended
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eBracket, // {, }, <, >: < and > only if link() is set. Otherwise they are comparison operators.
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eOther,
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eNone
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};
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explicit Token(Token **tokensBack);
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~Token();
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template<typename T>
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void str(T&& s) {
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_str = s;
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_varId = 0;
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update_property_info();
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}
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/**
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* Concatenate two (quoted) strings. Automatically cuts of the last/first character.
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* Example: "hello ""world" -> "hello world". Used by the token simplifier.
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*/
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void concatStr(std::string const& b);
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const std::string &str() const {
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return _str;
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}
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/**
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* Unlink and delete the next 'index' tokens.
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*/
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void deleteNext(unsigned long index = 1);
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/**
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* @return token in given index, related to this token.
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* For example index 1 would return next token, and 2
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* would return next from that one.
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*/
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const Token *tokAt(int index) const;
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Token *tokAt(int index) {
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return const_cast<Token *>(static_cast<const Token *>(this)->tokAt(index));
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}
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/**
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* @return the link to the token in given index, related to this token.
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* For example index 1 would return the link to next token.
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*/
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const Token *linkAt(int index) const;
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Token *linkAt(int index) {
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return const_cast<Token *>(static_cast<const Token *>(this)->linkAt(index));
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}
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/**
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* @return String of the token in given index, related to this token.
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* If that token does not exist, an empty string is being returned.
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*/
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const std::string &strAt(int index) const;
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/**
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* Match given token (or list of tokens) to a pattern list.
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*
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* Possible patterns
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* "someRandomText" If token contains "someRandomText".
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* @note Use Match() if you want to use flags in patterns
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*
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* The patterns can be also combined to compare to multiple tokens at once
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* by separating tokens with a space, e.g.
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* ") void {" will return true if first token is ')' next token
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* is "void" and token after that is '{'. If even one of the tokens does
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* not match its pattern, false is returned.
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*
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* @param tok List of tokens to be compared to the pattern
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* @param pattern The pattern against which the tokens are compared,
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* e.g. "const" or ") void {".
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* @return true if given token matches with given pattern
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* false if given token does not match with given pattern
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*/
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static bool simpleMatch(const Token *tok, const char pattern[]);
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/**
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* Match given token (or list of tokens) to a pattern list.
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*
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* Possible patterns
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* - "%any%" any token
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* - "%var%" any token which is a name or type e.g. "hello" or "int"
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* - "%type%" Anything that can be a variable type, e.g. "int", but not "delete".
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* - "%num%" Any numeric token, e.g. "23"
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* - "%bool%" true or false
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* - "%char%" Any token enclosed in '-character.
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* - "%comp%" Any token such that isComparisonOp() returns true.
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* - "%str%" Any token starting with "-character (C-string).
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* - "%varid%" Match with parameter varid
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* - "%op%" Any token such that isOp() returns true.
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* - "%cop%" Any token such that isConstOp() returns true.
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* - "%or%" A bitwise-or operator '|'
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* - "%oror%" A logical-or operator '||'
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* - "[abc]" Any of the characters 'a' or 'b' or 'c'
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* - "int|void|char" Any of the strings, int, void or char
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* - "int|void|char|" Any of the strings, int, void or char or empty string
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* - "!!else" No tokens or any token that is not "else".
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* - "someRandomText" If token contains "someRandomText".
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*
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* multi-compare patterns such as "int|void|char" can contain %%or%, %%oror% and %%op%
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* but it is not recommended to put such an %%cmd% as the first pattern.
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*
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* It's possible to use multi-compare patterns with all the other %%cmds%,
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* except for %%varid%, and normal names, but the %%cmds% should be put as
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* the first patterns in the list, then the normal names.
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* For example: "%var%|%num%|)" means yes to a variable, a number or ')'.
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*
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* @todo Make it possible to use the %%cmds% and the normal names in the
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* multicompare list without an order.
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*
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* The patterns can be also combined to compare to multiple tokens at once
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* by separating tokens with a space, e.g.
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* ") const|void {" will return true if first token is ')' next token is either
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* "const" or "void" and token after that is '{'. If even one of the tokens does not
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* match its pattern, false is returned.
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*
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* @param tok List of tokens to be compared to the pattern
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* @param pattern The pattern against which the tokens are compared,
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* e.g. "const" or ") const|volatile| {".
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* @param varid if %%varid% is given in the pattern the Token::varId
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* will be matched against this argument
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* @return true if given token matches with given pattern
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* false if given token does not match with given pattern
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*/
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static bool Match(const Token *tok, const char pattern[], unsigned int varid = 0);
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/**
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* @return length of C-string.
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*
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* Should be called for %%str%% tokens only.
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*
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* @param tok token with C-string
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**/
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static std::size_t getStrLength(const Token *tok);
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/**
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* @return sizeof of C-string.
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*
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* Should be called for %%str%% tokens only.
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*
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* @param tok token with C-string
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**/
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static std::size_t getStrSize(const Token *tok);
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/**
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* @return char of C-string at index (possible escaped "\\n")
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*
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* Should be called for %%str%% tokens only.
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*
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* @param tok token with C-string
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* @param index position of character
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**/
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static std::string getCharAt(const Token *tok, std::size_t index);
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Type type() const {
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return _type;
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}
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void type(Type t) {
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_type = t;
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}
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void isKeyword(bool kwd) {
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if (kwd)
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_type = eKeyword;
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else if (_type == eKeyword)
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_type = eName;
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}
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bool isKeyword() const {
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return _type == eKeyword;
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}
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bool isName() const {
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return _type == eName || _type == eType || _type == eVariable || _type == eFunction || _type == eKeyword ||
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_type == eBoolean; // TODO: "true"/"false" aren't really a name...
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}
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bool isUpperCaseName() const;
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bool isLiteral() const {
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return _type == eNumber || _type == eString || _type == eChar ||
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_type == eBoolean || _type == eLiteral;
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}
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bool isNumber() const {
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return _type == eNumber;
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}
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bool isOp() const {
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return (isConstOp() ||
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isAssignmentOp() ||
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_type == eIncDecOp);
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}
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bool isConstOp() const {
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return (isArithmeticalOp() ||
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_type == eLogicalOp ||
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_type == eComparisonOp ||
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_type == eBitOp);
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}
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bool isExtendedOp() const {
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return isConstOp() ||
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_type == eExtendedOp;
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}
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bool isArithmeticalOp() const {
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return _type == eArithmeticalOp;
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}
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bool isComparisonOp() const {
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return _type == eComparisonOp;
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}
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bool isAssignmentOp() const {
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return _type == eAssignmentOp;
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}
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bool isBoolean() const {
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return _type == eBoolean;
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}
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unsigned int flags() const {
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return _flags;
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}
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void flags(unsigned int flags_) {
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_flags = flags_;
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}
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bool isUnsigned() const {
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return getFlag(fIsUnsigned);
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}
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void isUnsigned(bool sign) {
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setFlag(fIsUnsigned, sign);
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}
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bool isSigned() const {
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return getFlag(fIsSigned);
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}
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void isSigned(bool sign) {
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setFlag(fIsSigned, sign);
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}
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bool isPointerCompare() const {
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return getFlag(fIsPointerCompare);
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}
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void isPointerCompare(bool b) {
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setFlag(fIsPointerCompare, b);
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}
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bool isLong() const {
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return getFlag(fIsLong);
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}
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void isLong(bool size) {
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setFlag(fIsLong, size);
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}
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bool isStandardType() const {
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return getFlag(fIsStandardType);
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}
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void isStandardType(bool b) {
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setFlag(fIsStandardType, b);
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}
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bool isExpandedMacro() const {
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return getFlag(fIsExpandedMacro);
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}
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void isExpandedMacro(bool m) {
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setFlag(fIsExpandedMacro, m);
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}
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bool isAttributeConstructor() const {
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return getFlag(fIsAttributeConstructor);
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}
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void isAttributeConstructor(bool ac) {
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setFlag(fIsAttributeConstructor, ac);
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}
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bool isAttributeDestructor() const {
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return getFlag(fIsAttributeDestructor);
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}
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void isAttributeDestructor(bool value) {
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setFlag(fIsAttributeDestructor, value);
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}
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bool isAttributeUnused() const {
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return getFlag(fIsAttributeUnused);
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}
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void isAttributeUnused(bool unused) {
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setFlag(fIsAttributeUnused, unused);
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}
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bool isAttributePure() const {
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return getFlag(fIsAttributePure);
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}
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void isAttributePure(bool value) {
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setFlag(fIsAttributePure, value);
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}
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bool isAttributeConst() const {
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return getFlag(fIsAttributeConst);
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}
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void isAttributeConst(bool value) {
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setFlag(fIsAttributeConst, value);
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}
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bool isAttributeNothrow() const {
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return getFlag(fIsAttributeNothrow);
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}
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void isAttributeNothrow(bool value) {
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setFlag(fIsAttributeNothrow, value);
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}
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bool isDeclspecNothrow() const {
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return getFlag(fIsDeclspecNothrow);
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}
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void isDeclspecNothrow(bool value) {
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setFlag(fIsDeclspecNothrow, value);
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}
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static const Token *findsimplematch(const Token *tok, const char pattern[]);
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static const Token *findsimplematch(const Token *tok, const char pattern[], const Token *end);
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static const Token *findmatch(const Token *tok, const char pattern[], unsigned int varId = 0);
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static const Token *findmatch(const Token *tok, const char pattern[], const Token *end, unsigned int varId = 0);
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static Token *findsimplematch(Token *tok, const char pattern[]) {
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return const_cast<Token *>(findsimplematch(static_cast<const Token *>(tok), pattern));
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}
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static Token *findsimplematch(Token *tok, const char pattern[], const Token *end) {
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return const_cast<Token *>(findsimplematch(static_cast<const Token *>(tok), pattern, end));
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}
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static Token *findmatch(Token *tok, const char pattern[], unsigned int varId = 0) {
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return const_cast<Token *>(findmatch(static_cast<const Token *>(tok), pattern, varId));
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}
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static Token *findmatch(Token *tok, const char pattern[], const Token *end, unsigned int varId = 0) {
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return const_cast<Token *>(findmatch(static_cast<const Token *>(tok), pattern, end, varId));
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}
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/**
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* Needle is build from multiple alternatives. If one of
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* them is equal to haystack, return value is 1. If there
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* are no matches, but one alternative to needle is empty
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* string, return value is 0. If needle was not found, return
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* value is -1.
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*
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* @param needle Current token
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* @param haystack e.g. "one|two" or "|one|two"
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* @return 1 if needle is found from the haystack
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* 0 if needle was empty string
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* -1 if needle was not found
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*/
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static int multiCompare(const Token *needle, const char *haystack, unsigned int varid);
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unsigned int linenr() const {
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return _linenr;
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}
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void linenr(unsigned int lineNumber) {
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_linenr = lineNumber;
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}
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unsigned int fileIndex() const {
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return _fileIndex;
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}
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void fileIndex(unsigned int indexOfFile) {
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_fileIndex = indexOfFile;
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}
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Token *next() const {
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return _next;
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}
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/**
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* Delete tokens between begin and end. E.g. if begin = 1
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* and end = 5, tokens 2,3 and 4 would be erased.
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*
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* @param begin Tokens after this will be erased.
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* @param end Tokens before this will be erased.
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*/
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static void eraseTokens(Token *begin, const Token *end);
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/**
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* Insert new token after this token. This function will handle
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* relations between next and previous token also.
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* @param tokenStr String for the new token.
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* @param prepend Insert the new token before this token when it's not
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* the first one on the tokens list.
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*/
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void insertToken(const std::string &tokenStr, bool prepend=false);
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void insertToken(const std::string &tokenStr, const std::string &originalNameStr, bool prepend=false);
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Token *previous() const {
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return _previous;
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}
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unsigned int varId() const {
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return _varId;
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}
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void varId(unsigned int id) {
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_varId = id;
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if (id != 0)
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_type = eVariable;
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else
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update_property_info();
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}
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/**
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* For debugging purposes, prints token and all tokens
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* followed by it.
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* @param title Title for the printout or use default parameter or 0
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* for no title.
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*/
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void printOut(const char *title = nullptr) const;
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/**
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* For debugging purposes, prints token and all tokens
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* followed by it.
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* @param title Title for the printout or use default parameter or 0
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* for no title.
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* @param fileNames Prints out file name instead of file index.
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* File index should match the index of the string in this vector.
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*/
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void printOut(const char *title, const std::vector<std::string> &fileNames) const;
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/**
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* Replace token replaceThis with tokens between start and end,
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* including start and end. The replaceThis token is deleted.
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* @param replaceThis This token will be deleted.
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* @param start This will be in the place of replaceThis
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* @param end This is also in the place of replaceThis
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*/
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static void replace(Token *replaceThis, Token *start, Token *end);
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/**
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* Stringify a token
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* @param os The result is shifted into that output stream
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* @param varid Print varids. (Style: "varname@id")
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* @param attributes Print attributes of tokens like "unsigned" in front of it.
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*/
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void stringify(std::ostream& os, bool varid, bool attributes) const;
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/**
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* Stringify a list of token, from current instance on.
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* @param varid Print varids. (Style: "varname@id")
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* @param attributes Print attributes of tokens like "unsigned" in front of it.
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* @param linenumbers Print line number in front of each line
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* @param linebreaks Insert "\\n" into string when line number changes
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* @param files print Files as numbers or as names (if fileNames is given)
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* @param fileNames Vector of filenames. Used (if given) to print filenames as strings instead of numbers.
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* @param end Stringification ends before this token is reached. 0 to stringify until end of list.
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* @return Stringified token list as a string
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*/
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std::string stringifyList(bool varid, bool attributes, bool linenumbers, bool linebreaks, bool files, const std::vector<std::string>* fileNames = 0, const Token* end = 0) const;
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std::string stringifyList(const Token* end, bool attributes = true) const;
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std::string stringifyList(bool varid = false) const;
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/**
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* Remove the contents for this token from the token list.
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*
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* The contents are replaced with the contents of the next token and
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* the next token is unlinked and deleted from the token list.
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*
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* So this token will still be valid after the 'deleteThis()'.
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*/
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void deleteThis();
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/**
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|
* Create link to given token
|
|
* @param linkToToken The token where this token should link
|
|
* to.
|
|
*/
|
|
void link(Token *linkToToken) {
|
|
_link = linkToToken;
|
|
if (_str == "<" || _str == ">")
|
|
update_property_info();
|
|
}
|
|
|
|
/**
|
|
* Return token where this token links to.
|
|
* Supported links are:
|
|
* "{" <-> "}"
|
|
* "(" <-> ")"
|
|
* "[" <-> "]"
|
|
*
|
|
* @return The token where this token links to.
|
|
*/
|
|
Token *link() const {
|
|
return _link;
|
|
}
|
|
|
|
/**
|
|
* Associate this token with given scope
|
|
* @param s Scope to be associated
|
|
*/
|
|
void scope(const Scope *s) {
|
|
_scope = s;
|
|
}
|
|
|
|
/**
|
|
* @return a pointer to the scope containing this token.
|
|
*/
|
|
const Scope *scope() const {
|
|
return _scope;
|
|
}
|
|
|
|
/**
|
|
* Associate this token with given function
|
|
* @param f Function to be associated
|
|
*/
|
|
void function(const Function *f) {
|
|
_function = f;
|
|
if (f)
|
|
_type = eFunction;
|
|
else if (_type == eFunction)
|
|
_type = eName;
|
|
}
|
|
|
|
/**
|
|
* @return a pointer to the Function associated with this token.
|
|
*/
|
|
const Function *function() const {
|
|
return _type == eFunction ? _function : 0;
|
|
}
|
|
|
|
/**
|
|
* Associate this token with given variable
|
|
* @param v Variable to be associated
|
|
*/
|
|
void variable(const Variable *v) {
|
|
_variable = v;
|
|
if (v || _varId)
|
|
_type = eVariable;
|
|
else if (_type == eVariable)
|
|
_type = eName;
|
|
}
|
|
|
|
/**
|
|
* @return a pointer to the variable associated with this token.
|
|
*/
|
|
const Variable *variable() const {
|
|
return _type == eVariable ? _variable : 0;
|
|
}
|
|
|
|
/**
|
|
* Links two elements against each other.
|
|
**/
|
|
static void createMutualLinks(Token *begin, Token *end);
|
|
|
|
/**
|
|
* This can be called only for tokens that are strings, else
|
|
* the assert() is called. If Token is e.g. '"hello"', this will return
|
|
* 'hello' (removing the double quotes).
|
|
* @return String value
|
|
*/
|
|
std::string strValue() const;
|
|
|
|
/**
|
|
* Move srcStart and srcEnd tokens and all tokens between them
|
|
* into new a location. Only links between tokens are changed.
|
|
* @param srcStart This is the first token to be moved
|
|
* @param srcEnd The last token to be moved
|
|
* @param newLocation srcStart will be placed after this token.
|
|
*/
|
|
static void move(Token *srcStart, Token *srcEnd, Token *newLocation);
|
|
|
|
/** Get progressValue */
|
|
unsigned int progressValue() const {
|
|
return _progressValue;
|
|
}
|
|
|
|
/** Calculate progress values for all tokens */
|
|
static void assignProgressValues(Token *tok);
|
|
|
|
/**
|
|
* @return the first token of the next argument. Does only work on argument
|
|
* lists. Returns 0, if there is no next argument
|
|
*/
|
|
Token* nextArgument() const;
|
|
|
|
/**
|
|
* Returns the closing bracket of opening '<'. Should only be used if link()
|
|
* is unavailable.
|
|
* @return closing '>', ')', ']' or '}'. if no closing bracket is found, NULL is returned
|
|
*/
|
|
const Token* findClosingBracket() const;
|
|
Token* findClosingBracket();
|
|
|
|
/**
|
|
* @return the original name.
|
|
*/
|
|
const std::string & originalName() const {
|
|
return _originalName ? *_originalName : emptyString;
|
|
}
|
|
|
|
/**
|
|
* Sets the original name.
|
|
*/
|
|
template<typename T>
|
|
void originalName(T&& name) {
|
|
if (!_originalName)
|
|
_originalName = new std::string(name);
|
|
else
|
|
*_originalName = name;
|
|
}
|
|
|
|
/** Values of token */
|
|
std::list<ValueFlow::Value> values;
|
|
|
|
const ValueFlow::Value * getValue(const MathLib::bigint val) const {
|
|
std::list<ValueFlow::Value>::const_iterator it;
|
|
for (it = values.begin(); it != values.end(); ++it) {
|
|
if (it->intvalue == val && !it->tokvalue)
|
|
return &(*it);
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
const ValueFlow::Value * getMaxValue(bool condition) const {
|
|
const ValueFlow::Value *ret = nullptr;
|
|
std::list<ValueFlow::Value>::const_iterator it;
|
|
for (it = values.begin(); it != values.end(); ++it) {
|
|
if (it->tokvalue)
|
|
continue;
|
|
if ((!ret || it->intvalue > ret->intvalue) &&
|
|
((it->condition != NULL) == condition))
|
|
ret = &(*it);
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
const ValueFlow::Value * getValueLE(const MathLib::bigint val, const Settings *settings) const;
|
|
const ValueFlow::Value * getValueGE(const MathLib::bigint val, const Settings *settings) const;
|
|
|
|
const Token *getValueTokenMaxStrLength() const {
|
|
const Token *ret = nullptr;
|
|
std::size_t maxlength = 0U;
|
|
std::list<ValueFlow::Value>::const_iterator it;
|
|
for (it = values.begin(); it != values.end(); ++it) {
|
|
if (it->tokvalue && it->tokvalue->type() == Token::eString) {
|
|
std::size_t length = Token::getStrLength(it->tokvalue);
|
|
if (!ret || length > maxlength) {
|
|
maxlength = length;
|
|
ret = it->tokvalue;
|
|
}
|
|
}
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
private:
|
|
|
|
void next(Token *nextToken) {
|
|
_next = nextToken;
|
|
}
|
|
void previous(Token *previousToken) {
|
|
_previous = previousToken;
|
|
}
|
|
|
|
/**
|
|
* Works almost like strcmp() except returns only true or false and
|
|
* if str has empty space ' ' character, that character is handled
|
|
* as if it were '\\0'
|
|
*/
|
|
static bool firstWordEquals(const char *str, const char *word);
|
|
|
|
/**
|
|
* Works almost like strchr() except
|
|
* if str has empty space ' ' character, that character is handled
|
|
* as if it were '\\0'
|
|
*/
|
|
static const char *chrInFirstWord(const char *str, char c);
|
|
|
|
/**
|
|
* Works almost like strlen() except
|
|
* if str has empty space ' ' character, that character is handled
|
|
* as if it were '\\0'
|
|
*/
|
|
static int firstWordLen(const char *str);
|
|
|
|
std::string _str;
|
|
|
|
Token *_next;
|
|
Token *_previous;
|
|
Token *_link;
|
|
|
|
// symbol database information
|
|
const Scope *_scope;
|
|
union {
|
|
const Function *_function;
|
|
const Variable *_variable;
|
|
};
|
|
|
|
unsigned int _varId;
|
|
unsigned int _fileIndex;
|
|
unsigned int _linenr;
|
|
|
|
/**
|
|
* A value from 0-100 that provides a rough idea about where in the token
|
|
* list this token is located.
|
|
*/
|
|
unsigned int _progressValue;
|
|
|
|
Type _type;
|
|
|
|
enum {
|
|
fIsUnsigned = (1 << 0),
|
|
fIsSigned = (1 << 1),
|
|
fIsPointerCompare = (1 << 2),
|
|
fIsLong = (1 << 3),
|
|
fIsStandardType = (1 << 4),
|
|
fIsExpandedMacro = (1 << 5),
|
|
fIsAttributeConstructor = (1 << 6), // __attribute__((constructor)) __attribute__((constructor(priority)))
|
|
fIsAttributeDestructor = (1 << 7), // __attribute__((destructor)) __attribute__((destructor(priority)))
|
|
fIsAttributeUnused = (1 << 8), // __attribute__((unused))
|
|
fIsAttributePure = (1 << 9), // __attribute__((pure))
|
|
fIsAttributeConst = (1 << 10), // __attribute__((const))
|
|
fIsAttributeNothrow = (1 << 11), // __attribute__((nothrow))
|
|
fIsDeclspecNothrow = (1 << 12) // __declspec(nothrow)
|
|
};
|
|
|
|
unsigned int _flags;
|
|
|
|
/**
|
|
* Get specified flag state.
|
|
* @param flag_ flag to get state of
|
|
* @return true if flag set or false in flag not set
|
|
*/
|
|
bool getFlag(unsigned int flag_) const {
|
|
return bool((_flags & flag_) != 0);
|
|
}
|
|
|
|
/**
|
|
* Set specified flag state.
|
|
* @param flag_ flag to set state
|
|
* @param state_ new state of flag
|
|
*/
|
|
void setFlag(unsigned int flag_, bool state_) {
|
|
_flags = state_ ? _flags | flag_ : _flags & ~flag_;
|
|
}
|
|
|
|
/** Updates internal property cache like _isName or _isBoolean.
|
|
Called after any _str() modification. */
|
|
void update_property_info();
|
|
|
|
/** Update internal property cache about isStandardType() */
|
|
void update_property_isStandardType();
|
|
|
|
// AST..
|
|
Token *_astOperand1;
|
|
Token *_astOperand2;
|
|
Token *_astParent;
|
|
|
|
// original name like size_t
|
|
std::string* _originalName;
|
|
|
|
public:
|
|
void astOperand1(Token *tok);
|
|
void astOperand2(Token *tok);
|
|
|
|
const Token * astOperand1() const {
|
|
return _astOperand1;
|
|
}
|
|
const Token * astOperand2() const {
|
|
return _astOperand2;
|
|
}
|
|
const Token * astParent() const {
|
|
return _astParent;
|
|
}
|
|
const Token *astTop() const {
|
|
const Token *ret = this;
|
|
while (ret->_astParent)
|
|
ret = ret->_astParent;
|
|
return ret;
|
|
}
|
|
|
|
/**
|
|
* Is current token a calculation? Only true for operands.
|
|
* For '*' and '&' tokens it is looked up if this is a
|
|
* dereference or address-of. A dereference or address-of is not
|
|
* counted as a calculation.
|
|
* @return returns true if current token is a calculation
|
|
*/
|
|
bool isCalculation() const;
|
|
|
|
void clearAst() {
|
|
_astOperand1 = _astOperand2 = _astParent = NULL;
|
|
}
|
|
|
|
std::string astString(const char *sep = "") const {
|
|
std::string ret;
|
|
if (_astOperand1)
|
|
ret = _astOperand1->astString(sep);
|
|
if (_astOperand2)
|
|
ret += _astOperand2->astString(sep);
|
|
return ret + sep + _str;
|
|
}
|
|
|
|
std::string astStringVerbose(const unsigned int indent1, const unsigned int indent2) const;
|
|
|
|
std::string expressionString() const;
|
|
|
|
void printAst(bool verbose, bool xml, std::ostream &out) const;
|
|
|
|
void printValueFlow(bool xml, std::ostream &out) const;
|
|
};
|
|
|
|
/// @}
|
|
//---------------------------------------------------------------------------
|
|
#endif // tokenH
|