1011 lines
33 KiB
C++
1011 lines
33 KiB
C++
/*
|
|
* Cppcheck - A tool for static C/C++ code analysis
|
|
* Copyright (C) 2007-2016 Cppcheck team.
|
|
*
|
|
* This program is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation, either version 3 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program 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 General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
//---------------------------------------------------------------------------
|
|
#ifndef tokenH
|
|
#define tokenH
|
|
//---------------------------------------------------------------------------
|
|
|
|
#include "config.h"
|
|
#include "mathlib.h"
|
|
#include "valueflow.h"
|
|
|
|
#include <cstddef>
|
|
#include <list>
|
|
#include <ostream>
|
|
#include <string>
|
|
#include <vector>
|
|
|
|
class Enumerator;
|
|
class Function;
|
|
class Scope;
|
|
class Settings;
|
|
class Type;
|
|
class ValueType;
|
|
class Variable;
|
|
|
|
/// @addtogroup Core
|
|
/// @{
|
|
|
|
/**
|
|
* @brief The token list that the TokenList generates is a linked-list of this class.
|
|
*
|
|
* Tokens are stored as strings. The "if", "while", etc are stored in plain text.
|
|
* The reason the Token class is needed (instead of using the string class) is that some extra functionality is also needed for tokens:
|
|
* - location of the token is stored (fileIndex, linenr, column)
|
|
* - functions for classifying the token (isName, isNumber, isBoolean, isStandardType)
|
|
*
|
|
* The Token class also has other functions for management of token list, matching tokens, etc.
|
|
*/
|
|
class CPPCHECKLIB Token {
|
|
private:
|
|
Token **tokensBack;
|
|
|
|
// Not implemented..
|
|
Token();
|
|
Token(const Token &);
|
|
Token operator=(const Token &);
|
|
|
|
public:
|
|
enum Type {
|
|
eVariable, eType, eFunction, eKeyword, eName, // Names: Variable (varId), Type (typeId, later), Function (FuncId, later), Language keyword, Name (unknown identifier)
|
|
eNumber, eString, eChar, eBoolean, eLiteral, eEnumerator, // Literals: Number, String, Character, Boolean, User defined literal (C++11), Enumerator
|
|
eArithmeticalOp, eComparisonOp, eAssignmentOp, eLogicalOp, eBitOp, eIncDecOp, eExtendedOp, // Operators: Arithmetical, Comparison, Assignment, Logical, Bitwise, ++/--, Extended
|
|
eBracket, // {, }, <, >: < and > only if link() is set. Otherwise they are comparison operators.
|
|
eOther,
|
|
eNone
|
|
};
|
|
|
|
explicit Token(Token **tokens);
|
|
~Token();
|
|
|
|
template<typename T>
|
|
void str(T&& s) {
|
|
_str = s;
|
|
_varId = 0;
|
|
|
|
update_property_info();
|
|
}
|
|
|
|
/**
|
|
* Concatenate two (quoted) strings. Automatically cuts of the last/first character.
|
|
* Example: "hello ""world" -> "hello world". Used by the token simplifier.
|
|
*/
|
|
void concatStr(std::string const& b);
|
|
|
|
const std::string &str() const {
|
|
return _str;
|
|
}
|
|
|
|
/**
|
|
* Unlink and delete the next 'index' tokens.
|
|
*/
|
|
void deleteNext(unsigned long index = 1);
|
|
|
|
/**
|
|
* Swap the contents of this token with the next token.
|
|
*/
|
|
void swapWithNext();
|
|
|
|
/**
|
|
* @return token in given index, related to this token.
|
|
* For example index 1 would return next token, and 2
|
|
* would return next from that one.
|
|
*/
|
|
const Token *tokAt(int index) const;
|
|
Token *tokAt(int index) {
|
|
return const_cast<Token *>(const_cast<const Token *>(this)->tokAt(index));
|
|
}
|
|
|
|
/**
|
|
* @return the link to the token in given index, related to this token.
|
|
* For example index 1 would return the link to next token.
|
|
*/
|
|
const Token *linkAt(int index) const;
|
|
Token *linkAt(int index) {
|
|
return const_cast<Token *>(const_cast<const Token *>(this)->linkAt(index));
|
|
}
|
|
|
|
/**
|
|
* @return String of the token in given index, related to this token.
|
|
* If that token does not exist, an empty string is being returned.
|
|
*/
|
|
const std::string &strAt(int index) const;
|
|
|
|
/**
|
|
* Match given token (or list of tokens) to a pattern list.
|
|
*
|
|
* Possible patterns
|
|
* "someRandomText" If token contains "someRandomText".
|
|
* @note Use Match() if you want to use flags in patterns
|
|
*
|
|
* The patterns can be also combined to compare to multiple tokens at once
|
|
* by separating tokens with a space, e.g.
|
|
* ") void {" will return true if first token is ')' next token
|
|
* is "void" and token after that is '{'. If even one of the tokens does
|
|
* not match its pattern, false is returned.
|
|
*
|
|
* @param tok List of tokens to be compared to the pattern
|
|
* @param pattern The pattern against which the tokens are compared,
|
|
* e.g. "const" or ") void {".
|
|
* @return true if given token matches with given pattern
|
|
* false if given token does not match with given pattern
|
|
*/
|
|
static bool simpleMatch(const Token *tok, const char pattern[]);
|
|
|
|
/**
|
|
* Match given token (or list of tokens) to a pattern list.
|
|
*
|
|
* Possible patterns
|
|
* - "%any%" any token
|
|
* - "%assign%" a assignment operand
|
|
* - "%bool%" true or false
|
|
* - "%char%" Any token enclosed in '-character.
|
|
* - "%comp%" Any token such that isComparisonOp() returns true.
|
|
* - "%cop%" Any token such that isConstOp() returns true.
|
|
* - "%name%" any token which is a name, variable or type e.g. "hello" or "int"
|
|
* - "%num%" Any numeric token, e.g. "23"
|
|
* - "%op%" Any token such that isOp() returns true.
|
|
* - "%or%" A bitwise-or operator '|'
|
|
* - "%oror%" A logical-or operator '||'
|
|
* - "%type%" Anything that can be a variable type, e.g. "int", but not "delete".
|
|
* - "%str%" Any token starting with "-character (C-string).
|
|
* - "%var%" Match with token with varId > 0
|
|
* - "%varid%" Match with parameter varid
|
|
* - "[abc]" Any of the characters 'a' or 'b' or 'c'
|
|
* - "int|void|char" Any of the strings, int, void or char
|
|
* - "int|void|char|" Any of the strings, int, void or char or empty string
|
|
* - "!!else" No tokens or any token that is not "else".
|
|
* - "someRandomText" If token contains "someRandomText".
|
|
*
|
|
* multi-compare patterns such as "int|void|char" can contain %%or%, %%oror% and %%op%
|
|
* it is recommended to put such an %%cmd% as the first pattern.
|
|
* For example: "%var%|%num%|)" means yes to a variable, a number or ')'.
|
|
*
|
|
* The patterns can be also combined to compare to multiple tokens at once
|
|
* by separating tokens with a space, e.g.
|
|
* ") const|void {" will return true if first token is ')' next token is either
|
|
* "const" or "void" and token after that is '{'. If even one of the tokens does not
|
|
* match its pattern, false is returned.
|
|
*
|
|
* @param tok List of tokens to be compared to the pattern
|
|
* @param pattern The pattern against which the tokens are compared,
|
|
* e.g. "const" or ") const|volatile| {".
|
|
* @param varid if %%varid% is given in the pattern the Token::varId
|
|
* will be matched against this argument
|
|
* @return true if given token matches with given pattern
|
|
* false if given token does not match with given pattern
|
|
*/
|
|
static bool Match(const Token *tok, const char pattern[], unsigned int varid = 0);
|
|
|
|
/**
|
|
* @return length of C-string.
|
|
*
|
|
* Should be called for %%str%% tokens only.
|
|
*
|
|
* @param tok token with C-string
|
|
**/
|
|
static std::size_t getStrLength(const Token *tok);
|
|
|
|
/**
|
|
* @return sizeof of C-string.
|
|
*
|
|
* Should be called for %%str%% tokens only.
|
|
*
|
|
* @param tok token with C-string
|
|
**/
|
|
static std::size_t getStrSize(const Token *tok);
|
|
|
|
/**
|
|
* @return char of C-string at index (possible escaped "\\n")
|
|
*
|
|
* Should be called for %%str%% tokens only.
|
|
*
|
|
* @param tok token with C-string
|
|
* @param index position of character
|
|
**/
|
|
static std::string getCharAt(const Token *tok, std::size_t index);
|
|
|
|
const ValueType *valueType() const {
|
|
return valuetype;
|
|
}
|
|
void setValueType(ValueType *vt);
|
|
|
|
const ValueType *argumentType() const {
|
|
const Token *top = this;
|
|
while (top && !Token::Match(top->astParent(), ",|("))
|
|
top = top->astParent();
|
|
return top ? top->valuetype : nullptr;
|
|
}
|
|
|
|
Token::Type tokType() const {
|
|
return _tokType;
|
|
}
|
|
void tokType(Token::Type t) {
|
|
_tokType = t;
|
|
|
|
bool memoizedIsName = (_tokType == eName || _tokType == eType || _tokType == eVariable ||
|
|
_tokType == eFunction || _tokType == eKeyword || _tokType == eBoolean ||
|
|
_tokType == eEnumerator); // TODO: "true"/"false" aren't really a name...
|
|
setFlag(fIsName, memoizedIsName);
|
|
|
|
bool memoizedIsLiteral = (_tokType == eNumber || _tokType == eString || _tokType == eChar ||
|
|
_tokType == eBoolean || _tokType == eLiteral || _tokType == eEnumerator);
|
|
setFlag(fIsLiteral, memoizedIsLiteral);
|
|
}
|
|
void isKeyword(bool kwd) {
|
|
if (kwd)
|
|
tokType(eKeyword);
|
|
else if (_tokType == eKeyword)
|
|
tokType(eName);
|
|
}
|
|
bool isKeyword() const {
|
|
return _tokType == eKeyword;
|
|
}
|
|
bool isName() const {
|
|
return getFlag(fIsName);
|
|
}
|
|
bool isUpperCaseName() const;
|
|
bool isLiteral() const {
|
|
return getFlag(fIsLiteral);
|
|
}
|
|
bool isNumber() const {
|
|
return _tokType == eNumber;
|
|
}
|
|
bool isEnumerator() const {
|
|
return _tokType == eEnumerator;
|
|
}
|
|
bool isOp() const {
|
|
return (isConstOp() ||
|
|
isAssignmentOp() ||
|
|
_tokType == eIncDecOp);
|
|
}
|
|
bool isConstOp() const {
|
|
return (isArithmeticalOp() ||
|
|
_tokType == eLogicalOp ||
|
|
_tokType == eComparisonOp ||
|
|
_tokType == eBitOp);
|
|
}
|
|
bool isExtendedOp() const {
|
|
return isConstOp() ||
|
|
_tokType == eExtendedOp;
|
|
}
|
|
bool isArithmeticalOp() const {
|
|
return _tokType == eArithmeticalOp;
|
|
}
|
|
bool isComparisonOp() const {
|
|
return _tokType == eComparisonOp;
|
|
}
|
|
bool isAssignmentOp() const {
|
|
return _tokType == eAssignmentOp;
|
|
}
|
|
bool isBoolean() const {
|
|
return _tokType == eBoolean;
|
|
}
|
|
bool isUnaryPreOp() const;
|
|
|
|
unsigned int flags() const {
|
|
return _flags;
|
|
}
|
|
void flags(unsigned int flags_) {
|
|
_flags = flags_;
|
|
}
|
|
bool isUnsigned() const {
|
|
return getFlag(fIsUnsigned);
|
|
}
|
|
void isUnsigned(bool sign) {
|
|
setFlag(fIsUnsigned, sign);
|
|
}
|
|
bool isSigned() const {
|
|
return getFlag(fIsSigned);
|
|
}
|
|
void isSigned(bool sign) {
|
|
setFlag(fIsSigned, sign);
|
|
}
|
|
bool isPointerCompare() const {
|
|
return getFlag(fIsPointerCompare);
|
|
}
|
|
void isPointerCompare(bool b) {
|
|
setFlag(fIsPointerCompare, b);
|
|
}
|
|
bool isLong() const {
|
|
return getFlag(fIsLong);
|
|
}
|
|
void isLong(bool size) {
|
|
setFlag(fIsLong, size);
|
|
}
|
|
bool isStandardType() const {
|
|
return getFlag(fIsStandardType);
|
|
}
|
|
void isStandardType(bool b) {
|
|
setFlag(fIsStandardType, b);
|
|
}
|
|
bool isExpandedMacro() const {
|
|
return getFlag(fIsExpandedMacro);
|
|
}
|
|
void isExpandedMacro(bool m) {
|
|
setFlag(fIsExpandedMacro, m);
|
|
}
|
|
bool isCast() const {
|
|
return getFlag(fIsCast);
|
|
}
|
|
void isCast(bool c) {
|
|
setFlag(fIsCast, c);
|
|
}
|
|
bool isAttributeConstructor() const {
|
|
return getFlag(fIsAttributeConstructor);
|
|
}
|
|
void isAttributeConstructor(bool ac) {
|
|
setFlag(fIsAttributeConstructor, ac);
|
|
}
|
|
bool isAttributeDestructor() const {
|
|
return getFlag(fIsAttributeDestructor);
|
|
}
|
|
void isAttributeDestructor(bool value) {
|
|
setFlag(fIsAttributeDestructor, value);
|
|
}
|
|
bool isAttributeUnused() const {
|
|
return getFlag(fIsAttributeUnused);
|
|
}
|
|
void isAttributeUnused(bool unused) {
|
|
setFlag(fIsAttributeUnused, unused);
|
|
}
|
|
bool isAttributeUsed() const {
|
|
return getFlag(fIsAttributeUsed);
|
|
}
|
|
void isAttributeUsed(bool unused) {
|
|
setFlag(fIsAttributeUsed, unused);
|
|
}
|
|
bool isAttributePure() const {
|
|
return getFlag(fIsAttributePure);
|
|
}
|
|
void isAttributePure(bool value) {
|
|
setFlag(fIsAttributePure, value);
|
|
}
|
|
bool isAttributeConst() const {
|
|
return getFlag(fIsAttributeConst);
|
|
}
|
|
void isAttributeConst(bool value) {
|
|
setFlag(fIsAttributeConst, value);
|
|
}
|
|
bool isAttributeNoreturn() const {
|
|
return getFlag(fIsAttributeNoreturn);
|
|
}
|
|
void isAttributeNoreturn(bool value) {
|
|
setFlag(fIsAttributeNoreturn, value);
|
|
}
|
|
bool isAttributeNothrow() const {
|
|
return getFlag(fIsAttributeNothrow);
|
|
}
|
|
void isAttributeNothrow(bool value) {
|
|
setFlag(fIsAttributeNothrow, value);
|
|
}
|
|
bool isAttributePacked() const {
|
|
return getFlag(fIsAttributePacked);
|
|
}
|
|
void isAttributePacked(bool value) {
|
|
setFlag(fIsAttributePacked, value);
|
|
}
|
|
bool isControlFlowKeyword() const {
|
|
return getFlag(fIsControlFlowKeyword);
|
|
}
|
|
bool isOperatorKeyword() const {
|
|
return getFlag(fIsOperatorKeyword);
|
|
}
|
|
void isOperatorKeyword(bool value) {
|
|
setFlag(fIsOperatorKeyword, value);
|
|
}
|
|
bool isComplex() const {
|
|
return getFlag(fIsComplex);
|
|
}
|
|
void isComplex(bool value) {
|
|
setFlag(fIsComplex, value);
|
|
}
|
|
bool isEnumType() const {
|
|
return getFlag(fIsEnumType);
|
|
}
|
|
void isEnumType(bool value) {
|
|
setFlag(fIsEnumType, value);
|
|
}
|
|
bool isTemplateArg() const {
|
|
return getFlag(fIsTemplateArg);
|
|
}
|
|
void isTemplateArg(bool value) {
|
|
setFlag(fIsTemplateArg, value);
|
|
}
|
|
|
|
static const Token *findsimplematch(const Token * const startTok, const char pattern[]);
|
|
static const Token *findsimplematch(const Token * const startTok, const char pattern[], const Token * const end);
|
|
static const Token *findmatch(const Token * const startTok, const char pattern[], const unsigned int varId = 0U);
|
|
static const Token *findmatch(const Token * const startTok, const char pattern[], const Token * const end, const unsigned int varId = 0U);
|
|
static Token *findsimplematch(Token * const startTok, const char pattern[]) {
|
|
return const_cast<Token *>(findsimplematch(const_cast<const Token *>(startTok), pattern));
|
|
}
|
|
static Token *findsimplematch(Token * const startTok, const char pattern[], const Token * const end) {
|
|
return const_cast<Token *>(findsimplematch(const_cast<const Token *>(startTok), pattern, end));
|
|
}
|
|
static Token *findmatch(Token * const startTok, const char pattern[], const unsigned int varId = 0U) {
|
|
return const_cast<Token *>(findmatch(const_cast<const Token *>(startTok), pattern, varId));
|
|
}
|
|
static Token *findmatch(Token * const startTok, const char pattern[], const Token * const end, const unsigned int varId = 0U) {
|
|
return const_cast<Token *>(findmatch(const_cast<const Token *>(startTok), pattern, end, varId));
|
|
}
|
|
|
|
/**
|
|
* Needle is build from multiple alternatives. If one of
|
|
* them is equal to haystack, return value is 1. If there
|
|
* are no matches, but one alternative to needle is empty
|
|
* string, return value is 0. If needle was not found, return
|
|
* value is -1.
|
|
*
|
|
* @param tok Current token (needle)
|
|
* @param haystack e.g. "one|two" or "|one|two"
|
|
* @param varid optional varid of token
|
|
* @return 1 if needle is found from the haystack
|
|
* 0 if needle was empty string
|
|
* -1 if needle was not found
|
|
*/
|
|
static int multiCompare(const Token *tok, const char *haystack, unsigned int varid);
|
|
|
|
unsigned int fileIndex() const {
|
|
return _fileIndex;
|
|
}
|
|
void fileIndex(unsigned int indexOfFile) {
|
|
_fileIndex = indexOfFile;
|
|
}
|
|
|
|
unsigned int linenr() const {
|
|
return _linenr;
|
|
}
|
|
void linenr(unsigned int lineNumber) {
|
|
_linenr = lineNumber;
|
|
}
|
|
|
|
unsigned int col() const {
|
|
return _col;
|
|
}
|
|
void col(unsigned int c) {
|
|
_col = c;
|
|
}
|
|
|
|
Token *next() const {
|
|
return _next;
|
|
}
|
|
|
|
|
|
/**
|
|
* Delete tokens between begin and end. E.g. if begin = 1
|
|
* and end = 5, tokens 2,3 and 4 would be erased.
|
|
*
|
|
* @param begin Tokens after this will be erased.
|
|
* @param end Tokens before this will be erased.
|
|
*/
|
|
static void eraseTokens(Token *begin, const Token *end);
|
|
|
|
/**
|
|
* Insert new token after this token. This function will handle
|
|
* relations between next and previous token also.
|
|
* @param tokenStr String for the new token.
|
|
* @param originalNameStr String used for Token::originalName().
|
|
* @param prepend Insert the new token before this token when it's not
|
|
* the first one on the tokens list.
|
|
*/
|
|
void insertToken(const std::string &tokenStr, const std::string &originalNameStr=emptyString, bool prepend=false);
|
|
|
|
Token *previous() const {
|
|
return _previous;
|
|
}
|
|
|
|
|
|
unsigned int varId() const {
|
|
return _varId;
|
|
}
|
|
void varId(unsigned int id) {
|
|
_varId = id;
|
|
if (id != 0) {
|
|
tokType(eVariable);
|
|
isStandardType(false);
|
|
} else {
|
|
update_property_info();
|
|
}
|
|
}
|
|
|
|
/**
|
|
* For debugging purposes, prints token and all tokens
|
|
* followed by it.
|
|
* @param title Title for the printout or use default parameter or 0
|
|
* for no title.
|
|
*/
|
|
void printOut(const char *title = nullptr) const;
|
|
|
|
/**
|
|
* For debugging purposes, prints token and all tokens
|
|
* followed by it.
|
|
* @param title Title for the printout or use default parameter or 0
|
|
* for no title.
|
|
* @param fileNames Prints out file name instead of file index.
|
|
* File index should match the index of the string in this vector.
|
|
*/
|
|
void printOut(const char *title, const std::vector<std::string> &fileNames) const;
|
|
|
|
/**
|
|
* Replace token replaceThis with tokens between start and end,
|
|
* including start and end. The replaceThis token is deleted.
|
|
* @param replaceThis This token will be deleted.
|
|
* @param start This will be in the place of replaceThis
|
|
* @param end This is also in the place of replaceThis
|
|
*/
|
|
static void replace(Token *replaceThis, Token *start, Token *end);
|
|
|
|
/**
|
|
* Stringify a token
|
|
* @param os The result is shifted into that output stream
|
|
* @param varid Print varids. (Style: "varname@id")
|
|
* @param attributes Print attributes of tokens like "unsigned" in front of it.
|
|
* @param macro Prints $ in front of the token if it was expanded from a macro.
|
|
*/
|
|
void stringify(std::ostream& os, bool varid, bool attributes, bool macro) const;
|
|
|
|
/**
|
|
* Stringify a list of token, from current instance on.
|
|
* @param varid Print varids. (Style: "varname@id")
|
|
* @param attributes Print attributes of tokens like "unsigned" in front of it.
|
|
* @param linenumbers Print line number in front of each line
|
|
* @param linebreaks Insert "\\n" into string when line number changes
|
|
* @param files print Files as numbers or as names (if fileNames is given)
|
|
* @param fileNames Vector of filenames. Used (if given) to print filenames as strings instead of numbers.
|
|
* @param end Stringification ends before this token is reached. 0 to stringify until end of list.
|
|
* @return Stringified token list as a string
|
|
*/
|
|
std::string stringifyList(bool varid, bool attributes, bool linenumbers, bool linebreaks, bool files, const std::vector<std::string>* fileNames = nullptr, const Token* end = nullptr) const;
|
|
std::string stringifyList(const Token* end, bool attributes = true) const;
|
|
std::string stringifyList(bool varid = false) const;
|
|
|
|
/**
|
|
* Remove the contents for this token from the token list.
|
|
*
|
|
* The contents are replaced with the contents of the next token and
|
|
* the next token is unlinked and deleted from the token list.
|
|
*
|
|
* So this token will still be valid after the 'deleteThis()'.
|
|
*/
|
|
void deleteThis();
|
|
|
|
/**
|
|
* 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)
|
|
tokType(eFunction);
|
|
else if (_tokType == eFunction)
|
|
tokType(eName);
|
|
}
|
|
|
|
/**
|
|
* @return a pointer to the Function associated with this token.
|
|
*/
|
|
const Function *function() const {
|
|
return _tokType == eFunction ? _function : nullptr;
|
|
}
|
|
|
|
/**
|
|
* Associate this token with given variable
|
|
* @param v Variable to be associated
|
|
*/
|
|
void variable(const Variable *v) {
|
|
_variable = v;
|
|
if (v || _varId)
|
|
tokType(eVariable);
|
|
else if (_tokType == eVariable)
|
|
tokType(eName);
|
|
}
|
|
|
|
/**
|
|
* @return a pointer to the variable associated with this token.
|
|
*/
|
|
const Variable *variable() const {
|
|
return _tokType == eVariable ? _variable : nullptr;
|
|
}
|
|
|
|
/**
|
|
* Associate this token with given type
|
|
* @param t Type to be associated
|
|
*/
|
|
void type(const ::Type *t);
|
|
|
|
/**
|
|
* @return a pointer to the type associated with this token.
|
|
*/
|
|
const ::Type *type() const {
|
|
return _tokType == eType ? _type : nullptr;
|
|
}
|
|
|
|
/**
|
|
* @return a pointer to the Enumerator associated with this token.
|
|
*/
|
|
const Enumerator *enumerator() const {
|
|
return _tokType == eEnumerator ? _enumerator : nullptr;
|
|
}
|
|
|
|
/**
|
|
* Associate this token with given enumerator
|
|
* @param e Enumerator to be associated
|
|
*/
|
|
void enumerator(const Enumerator *e) {
|
|
_enumerator = e;
|
|
if (e)
|
|
tokType(eEnumerator);
|
|
else if (_tokType == eEnumerator)
|
|
tokType(eName);
|
|
}
|
|
|
|
/**
|
|
* 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. Requires that Tokenizer::createLinks2() has been called before.
|
|
* Returns 0, if there is no next argument.
|
|
*/
|
|
Token* nextArgument() const;
|
|
|
|
/**
|
|
* @return the first token of the next argument. Does only work on argument
|
|
* lists. Should be used only before Tokenizer::createLinks2() was called.
|
|
* Returns 0, if there is no next argument.
|
|
*/
|
|
Token* nextArgumentBeforeCreateLinks2() const;
|
|
|
|
/**
|
|
* @return the first token of the next template argument. Does only work on template argument
|
|
* lists. Requires that Tokenizer::createLinks2() has been called before.
|
|
* Returns 0, if there is no next argument.
|
|
*/
|
|
Token* nextTemplateArgument() 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;
|
|
}
|
|
|
|
const std::list<ValueFlow::Value>& values() const {
|
|
return _values ? *_values : emptyValueList;
|
|
}
|
|
|
|
/**
|
|
* Sets the original name.
|
|
*/
|
|
template<typename T>
|
|
void originalName(T&& name) {
|
|
if (!_originalName)
|
|
_originalName = new std::string(name);
|
|
else
|
|
*_originalName = name;
|
|
}
|
|
|
|
bool hasKnownIntValue() const {
|
|
return _values && _values->size() == 1U && _values->front().isKnown() && _values->front().isIntValue();
|
|
}
|
|
|
|
const ValueFlow::Value * getValue(const MathLib::bigint val) const {
|
|
if (!_values)
|
|
return nullptr;
|
|
for (std::list<ValueFlow::Value>::const_iterator it = _values->begin(); it != _values->end(); ++it) {
|
|
if (it->isIntValue() && it->intvalue == val)
|
|
return &(*it);
|
|
}
|
|
return nullptr;
|
|
}
|
|
|
|
const ValueFlow::Value * getMaxValue(bool condition) const {
|
|
if (!_values)
|
|
return nullptr;
|
|
const ValueFlow::Value *ret = nullptr;
|
|
for (std::list<ValueFlow::Value>::const_iterator it = _values->begin(); it != _values->end(); ++it) {
|
|
if (!it->isIntValue())
|
|
continue;
|
|
if ((!ret || it->intvalue > ret->intvalue) &&
|
|
((it->condition != nullptr) == condition))
|
|
ret = &(*it);
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
const ValueFlow::Value * getMovedValue() const {
|
|
if (!_values)
|
|
return nullptr;
|
|
for (std::list<ValueFlow::Value>::const_iterator it = _values->begin(); it != _values->end(); ++it) {
|
|
if (it->isMovedValue() && it->moveKind != ValueFlow::Value::NonMovedVariable)
|
|
return &(*it);
|
|
}
|
|
return nullptr;
|
|
}
|
|
|
|
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 ValueFlow::Value * getInvalidValue(const Token *ftok, unsigned int argnr, const Settings *settings) const;
|
|
|
|
const Token *getValueTokenMaxStrLength() const;
|
|
const Token *getValueTokenMinStrSize() const;
|
|
|
|
const Token *getValueTokenDeadPointer() const;
|
|
|
|
/** Add token value. Return true if value is added. */
|
|
bool addValue(const ValueFlow::Value &value);
|
|
|
|
private:
|
|
|
|
void next(Token *nextToken) {
|
|
_next = nextToken;
|
|
}
|
|
void previous(Token *previousToken) {
|
|
_previous = previousToken;
|
|
}
|
|
|
|
/** used by deleteThis() to take data from token to delete */
|
|
void takeData(Token *fromToken);
|
|
|
|
/**
|
|
* 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);
|
|
|
|
std::string _str;
|
|
|
|
Token *_next;
|
|
Token *_previous;
|
|
Token *_link;
|
|
|
|
// symbol database information
|
|
const Scope *_scope;
|
|
union {
|
|
const Function *_function;
|
|
const Variable *_variable;
|
|
const ::Type* _type;
|
|
const Enumerator *_enumerator;
|
|
};
|
|
|
|
unsigned int _varId;
|
|
unsigned int _fileIndex;
|
|
unsigned int _linenr;
|
|
unsigned int _col;
|
|
|
|
/**
|
|
* A value from 0-100 that provides a rough idea about where in the token
|
|
* list this token is located.
|
|
*/
|
|
unsigned int _progressValue;
|
|
|
|
Token::Type _tokType;
|
|
|
|
enum {
|
|
fIsUnsigned = (1 << 0),
|
|
fIsSigned = (1 << 1),
|
|
fIsPointerCompare = (1 << 2),
|
|
fIsLong = (1 << 3),
|
|
fIsStandardType = (1 << 4),
|
|
fIsExpandedMacro = (1 << 5),
|
|
fIsCast = (1 << 6),
|
|
fIsAttributeConstructor = (1 << 7), // __attribute__((constructor)) __attribute__((constructor(priority)))
|
|
fIsAttributeDestructor = (1 << 8), // __attribute__((destructor)) __attribute__((destructor(priority)))
|
|
fIsAttributeUnused = (1 << 9), // __attribute__((unused))
|
|
fIsAttributePure = (1 << 10), // __attribute__((pure))
|
|
fIsAttributeConst = (1 << 11), // __attribute__((const))
|
|
fIsAttributeNoreturn = (1 << 12), // __attribute__((noreturn)), __declspec(noreturn)
|
|
fIsAttributeNothrow = (1 << 13), // __attribute__((nothrow)), __declspec(nothrow)
|
|
fIsAttributeUsed = (1 << 14), // __attribute__((used))
|
|
fIsAttributePacked = (1 << 15), // __attribute__((packed))
|
|
fIsControlFlowKeyword = (1 << 16), // if/switch/while/...
|
|
fIsOperatorKeyword = (1 << 17), // operator=, etc
|
|
fIsComplex = (1 << 18), // complex/_Complex type
|
|
fIsEnumType = (1 << 19), // enumeration type
|
|
fIsName = (1 << 20),
|
|
fIsLiteral = (1 << 21),
|
|
fIsTemplateArg = (1 << 22),
|
|
};
|
|
|
|
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 ((_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;
|
|
|
|
// ValueType
|
|
ValueType *valuetype;
|
|
|
|
// ValueFlow
|
|
std::list<ValueFlow::Value>* _values;
|
|
static const std::list<ValueFlow::Value> emptyValueList;
|
|
|
|
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 = nullptr;
|
|
}
|
|
|
|
void clearValueFlow() {
|
|
delete _values;
|
|
_values = nullptr;
|
|
}
|
|
|
|
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
|