Commit Graph

340 Commits

Author SHA1 Message Date
Daniel Marjamäki f42c104b0d Distinguish exprid and varid in --debug output 2020-11-28 15:41:07 +01:00
miltolstoy 5d299016f1
feat: analyze function side effects (#2901) 2020-11-26 17:34:42 +01:00
Daniel Marjamäki 7804b28e70 AST: Tweaked debug output 2020-10-31 18:57:48 +01:00
Daniel Marjamäki 687b44dbb7 Token: add flag for splitted variable declaration with initialization 2020-09-09 16:22:47 +02:00
Daniel Marjamäki 0c6dc84cbb astyle formatting
[ci skip]
2020-09-07 10:56:02 +02:00
Paul Fultz II a4f43fc2ad
Fix issue 8234: false negative: (warning) Opposite inner 'if' condition leads to a dead code block. (#2781) 2020-09-07 07:53:41 +02:00
Daniel Marjamäki 7969bf7ae8 Token: Add 'isSplittedVarDecl attribute 2020-09-06 11:02:22 +02:00
Daniel Marjamäki 6277eece67 Variable contracts 2020-08-24 20:57:49 +02:00
Paul Fultz II a332062385
Add exprId to tokens (#2744) 2020-08-20 18:21:29 +02:00
Oliver Stöneberg 4f68d85633
optimized non-matchcompiled Token::simpleMatch() a bit (#2640) 2020-05-26 20:13:56 +02:00
Daniel Marjamäki e5a3dc1a0c ExprEngine; Slow processing 2020-05-23 11:31:12 +02:00
PKEuS f6788c0472 Fixed Token::isKeyword: Actually set this flag to a reasonable value in all code paths 2020-05-19 13:47:25 +02:00
PKEuS ade253a730 Optimization: Reduced memory consumption of token list
- allocate memory for mTemplateSimplifierPointers only if necessary
- reordered member variables in TokenImpl
2020-05-19 08:40:24 +02:00
PKEuS 793ed68029 Refactorization: Moved code from header to source
- from utils.h to new utils.cpp
- from token.h to token.cpp
- from valueflow.h to valueflow.cpp
- from errorlogger.h to errorlogger.cpp
2020-05-19 08:35:12 +02:00
shaneasd 7bfd686f04
Fix #9700 duplicateBranch false positive from missing scope operator :: in ast (#2646) 2020-05-18 19:31:13 +02:00
Daniel Marjamäki 08ddd84780 Update copyright year 2020-05-10 11:16:32 +02:00
Daniel Marjamäki 3e0218299b Revert "Update copyright year"
This reverts commit 6eec6c4bd5.
2020-05-10 11:13:05 +02:00
Daniel Marjamäki 6eec6c4bd5 Update copyright year 2020-05-10 11:11:34 +02:00
Daniel Marjamäki 137f262300 Fix Token::isImpossibleIntValue 2020-05-09 10:30:19 +02:00
Daniel Marjamäki d4169f04d5 Bug hunting; Avoid false warnings for impossible values 2020-05-08 17:42:56 +02:00
Oliver Stöneberg 1af959af2c
fixed -Wextra-semi-stmt Clang warnings (#2553)
* fixed -Wextra-semi-stmt Clang warnings

* adjusted REDIRECT macro to require a semicolon

* testmathlib.cpp: rolled back accidental change
2020-04-21 17:27:51 +02:00
shaneasd 82c09f243b
Maybeunusedsupport (#2570)
* Add rudimentary support for [[maybe_unused]]

* Add more test cases. use the symboldatabase rather than reparsing. Fix travis error.

* test review actions

* change var to usage._var
2020-04-12 20:35:54 +02:00
Daniel Marjamäki 9eb6925976 Refactoring; Avoid template<> 2020-02-01 08:20:20 +01:00
Rikard Falkeborn 5c061c1c12 Set correct type and size of string and char literals (#2275)
* Set correct type and size of string and char literals

Use that string and char literal tokens store the prefix. This makes
it possible to distinghuish between different type of string literals
(i.e., utf8 encoded strings, utf16, wide strings, etc) which have
different type.

When the tokens holding the string and character values have the correct
type, it is possible to improve Token::getStrSize() to give the correct
result for all string types. Previously, it would return the number of
characters in the string, i.e., it would give the wrong size unless
the type of the string was char*.

Since strings now can have different size (in number of bytes) and
length (in number of elements), add a new helper function that returns
the number of characters. Checkers have been updated to use the correct
functions.

Having the size makes it possible to find more problems with prefixed
strings, and to reduce false positives, for example in the buffer
overflow checker.

Also, improve the stringLiteralWrite error message to also print the
prefix of the string (if there is one).

* Add comment and update string length
2019-10-20 07:11:57 +02:00
Steve Mokris 506a952ad2 Parse `extern "C"`, and use it to avoid FP reference warnings (#2234)
Previously, cppcheck discarded the `extern "C"` specifier.  This patch modifies cppcheck to parse each as a Scope in the symbol database, then uses that scope to avoid false positives when making recommendations about changing a function argument to be a reference (since variable references is a C++ feature, unavailable in C, and thus unavailable in `extern "C"`).
2019-10-08 17:48:09 +02:00
Oliver Stöneberg 9028b4a81d do not access static methods through instance (#2189) 2019-09-20 21:54:30 +02:00
Paul Fultz II ad8abdb0c3 Add impossible values to ValueFlow (#2186)
* Add impossible category

* Replace values

* Try to adjust known values

* Add ! for impossible values

* Add impossible with possible values

* Remove contradictions

* Add values when the branch is not dead

* Only copy possible values

* Dont bail on while loops

* Load std lib in valueflow

* Check for function calls

* Fix stl errors

* Fix incorrect impossible check

* Fix heap-after-use error

* Remove impossible values when they are lowered

* Show the bound and remove overlaps

* Infer conditions

* Dont push pointer values through dynamic_cast

* Add test for dynamic_cast issue

* Add shifttoomanybits test

* Add test for div by zero

* Add a test for issue 9315

* Dont make impossible value inconclusive

* Fix FP with shift operator

* Improve handleKnownValuesInLoop for impossible values

* Fix cppcheck warning

* Fix impossible values for ctu

* Bailout for streams

* Check equality conditions

* Fix overflows

* Add regression test for 9332

* Remove duplicate conditions

* Skip impossible values for invalid value

* Check for null

* Rename bound to range

* Formatting
2019-09-20 15:06:37 +02:00
IOBYTE e5220bdf0c make ellipsis ... a single token (#2143)
* make ellipsis ... a single token

Using cppcheck -E to preprocess code with ellipsis produces output that
can't be compiled because ... is split into 3 tokens.

* try to fix addon
2019-09-04 08:07:30 +02:00
Daniel Marjamäki af449779f0 astyle formatting
[ci skip]
2019-09-03 06:43:08 +02:00
Ken-Patrick Lehrmann 5c172bb55a Fix issue 8897: Huge array initializations (#2135)
* Fix issue 8897: Huge array initializations

iscpp11init would take a lot of time when parsing huge arrays.
This patch add memoization to keeps track that we are parsing an array,
and allows to propagate the result without re-parsing the array for each
of its members.

* Use enum class instead of enum
2019-09-02 20:31:01 +02:00
Daniel Marjamäki 2d9a131817 Refactoring: Rename variables. Do not use leading _. Renamed 'col' to 'column' 2019-08-18 12:19:05 +02:00
Paul Fultz II 3e0d1141d3 Fix issue 9277: FP: Dont warn for knwon conditions in if constexpr (#2085) 2019-08-16 07:56:39 +02:00
Ken-Patrick 9ec8886898 Use std::any_of in token.h (#2065)
[lib/token.h:964]: (style) Consider using std::any_of algorithm instead of a raw loop.
2019-08-07 08:02:07 +02:00
Paul Fultz II ffdd2dc793 Fix issue 8924: Re-enable valueFlowTerminatingCondition 2019-08-05 07:18:06 +02:00
orbitcowboy a9bdf99e07 std.cfg: Added *experimental* support for math constants liken M_PI. These are *NOT* standard, but they are supported by GCC/Clang and VS. 2019-07-31 11:11:01 +02:00
rebnridgway e629f9a90f Calculate token scopes in advance rather than as the tokenlist is iterated (#2038)
* Removed redundant scope calculation

* Add scope propagation code to insertToken

* Add relevant scope code to Token class

* Add code to calculate the scope of Tokens

* Add calculateScopes method to class

* Add missing include for shared_ptr
2019-07-31 09:19:27 +02:00
Daniel Marjamäki 1c75257212 Token::hasKnownIntValue: Fix when there is one possible int value and one known BUFFER_SIZE value, it should return false. 2019-07-27 08:25:07 +02:00
Daniel Marjamäki b30ef3d050 Fix wrong 'nonneg' 2019-07-14 17:31:26 +02:00
Daniel Marjamäki 0014fe880e Mark members and arguments with 'nonneg' 2019-07-14 12:22:33 +02:00
Daniel Marjamäki 316537a837 Avoid 'unsigned' for int variables 2019-07-13 16:06:24 +02:00
Daniel Marjamäki cff462c6ef Token deleteNext/deletePrevious parameters 2019-07-13 15:47:53 +02:00
Daniel Marjamäki 68cc7516a1 Annotations: Add annotation __cppcheck_in_range__(low,high) 2019-07-12 11:09:54 +02:00
Daniel Marjamäki 9f548efbd3 Refactoring: enum class 2019-07-10 15:27:07 +02:00
versat 57d44f1362 astyle formatting
[ci skip]
2019-07-05 14:00:59 +02:00
Paul Fultz II e0ced1c415 Parse lambdas as functions (#1955)
* Parse lambdas as functions

* Fix issue with missing paren

* Fix error when parsing non-existent args

* Remove unused function variable
2019-07-05 12:30:42 +02:00
Scott Furry e459762bcd Suppress Code semantic and syntax warnings (#1936)
Sources were built with Clang but with increased verbosity of error detection.

A number of syntax and semantic warnings were encountered. Commit adds
changes to correct these warnings.

Some changes involve removing extra, and unncessary, semi-colons at EOL
(e.g. at end of switch clause).

Project astyle settings are not currently setup to detect if a file is to
have an extra carriage return after the last line of data. Two files were
altered to ensure an extra carriage return.

An advisory to enhance code was encountered in triage code. Clang advisory
on a for-loop interation value suggested that:
`use reference type 'const QString &' to prevent copying`
2019-06-30 21:43:25 +02:00
Daniel Marjamäki d9a9743b8a Revert "Calculate token scopes in advance rather than as the tokenlist is iterated (#1882)"
This reverts commit 0d7836f3a0.
2019-06-30 09:12:18 +02:00
rebnridgway 0d7836f3a0 Calculate token scopes in advance rather than as the tokenlist is iterated (#1882)
* Added scopeinfo member to token class

Moved ScopeInfo2 declaration here as well because that's where it needs to be now.

* Added scopeinfo accessors and declaration to class

* Add new method for calculating scopes

This replaces the methods in the TemplateSimplifier which calculate the current scope as the token list is iterated.  The old method required checking if the scope had changed for every token multiple times (for multiple iterations), which was surprisingly costly.  Calculating scopes in advance like this decreases runtime on a worst-case file by around thirty percent.
ScopeInfo objects are disposed of when the TemplateSimplification is done as they are not used later.

* Add calculateScopes method to header

* Removed code that calculated current scope

This has been replaced by code that calculates the scopes up front and stores them with each token, which is much faster.

* Fixed compile errors from extra parentheses

* Added missing code to fix memory leak

* Added code to actually clean up ScopeInfo structs

* Tidy up a dodgy for loop

* Convert argument to const ref

* Calculate missing scopes

As the templatesimplificator expands templates and does multiple passes it needs to make sure all scopes are calculated.

* Remove copying the scope to the next token

This is now done properly when scopes are calculated.

* Remove call to calculateScopes

This is now done by the TemplateSimplifier.

* Recalculate scopes for every pass of simplifyTemplates

* Add code to calculate extra scopes as they are added

I thought that this might be useful for calculating scopes when Tokens are created, but as there are several ways of creating Tokens that don't guarantee that they are placed in a list it is easier to just calculate scopes when you know you have a list and when you know you're adding to a list.

* Fix several bugs and poorly designed code

Remove the global scopes collection, and clean them up instead by iterating through the tokenlist to find them.  This means scopes can be calculated by functions in the Token class as well as in the Tokenizer class without leaking the scope object.
Fix a couple of bugs in the calculateScopes method and make it more efficient.

* Remove unnecessary calls to calculateScopes

* Move brace to correct position

Calculating scopes during insertToken only needs to happen if we created a new Token.

* Handle 'using namespace' declarations separately

This fixes a bug caused by a statement matching 'struct B < 0 > ;'

* Fix argument name mismatch

* Actually use newScopeInfo when inserting Token

* Switch to using shared_ptr to hold scopeInfos

This means ScopeInfo2 objects get properly cleaned up when they are no longer needed.

* Change ScopeInfo member to be a shared_ptr

* Update code to use shared_ptr

* Add missing include for shared_ptr

* Remove unnecessary cleanup code

This has been replaced by shared_ptr for ScopeInfo2 objects
2019-06-29 14:34:22 +02:00
Daniel Marjamäki beea7fa8d2 Token::index(): Created Token member that indicates the Token position in the token list. It can be used to quickly check if tok1 precedes tok2. 2019-06-21 22:16:23 +02:00
Ken-Patrick 66ebc187f6 Cleanup some const_cast of Token* (#1886)
* Add non const version of some methods of Token

The aim is to reduce the (ab)use of const_cast.

* Cleanup some more const_cast in valueflow

* Remove useless const_cast

* Remove some const_cast from templatesimplifier

* Remove some const_cast from valueflow
2019-06-16 10:09:38 +02:00
Daniel Marjamäki 7efcb3cfe3 astyle formatting
[ci skip]
2019-05-05 11:41:29 +02:00
Paul Fultz II a688df0ea1 Fix issue 9120: crash in valueflow (#1822) 2019-05-05 09:51:36 +02:00
Paul Fultz II 091f4bcf8d Add check for unnecessary search before insertion
This will warn for cases where searching in an associative container happens before insertion, like this:

```cpp
void f1(std::set<unsigned>& s, unsigned x) {
    if (s.find(x) == s.end()) {
        s.insert(x);
    }
}

void f2(std::map<unsigned, unsigned>& m, unsigned x) {
    if (m.find(x) == m.end()) {
        m.emplace(x, 1);
    } else {
        m[x] = 1;
    }
}
```

In the case of the map it could be written as `m[x] = 1` as it will create the key if it doesnt exist, so the extra search is not necessary.

I have this marked as `performance` as it is mostly concerning performance, but there could be a copy-paste error possibly, although I dont think thats common.
2019-05-02 11:04:23 +02:00
Rikard Falkeborn c7d7f8738c Optimize astStringVerbose() for large arrays (#1815)
Change the astStringVerbose() recursion to extend a string instead of
returning one. This has the benefit that for tokens where the recursion
runs deep (typically large arrays), the time savings can be substantial
(see comments on benchmarks further down).

The reason is that previously, for each token, the astString of its
operands was constructed, and then appended to this tokens astString.
This led to a lot of unnecessary string copying (and with that
allocations). Instead, by passing the string by reference, the number
of temporary strings is greatly reduced.

Another way of seeing it is that previously, the string was constructed
from end to beginning, but now it is constructed from the beginning to
end. There was no notable speedup by preallocating the entire string
using string::reserve() (at least not on Linux).

To benchmark, the changes and master were tested on Linux using the
commands:

	make
	time cppcheck --debug --verbose $file >/dev/null

i.e., the cppcheck binary was compiled with the settings in the
Makefile. Printing the output to screen or file will of course take
longer time.

In Trac ticket #8355 which triggered this change, an example file from the
Wine repository was attached. Running the above cppcheck on master took
24 minutes and with the changes in this commmit, took 22 seconds.

Another test made was on lib/tokenlist.cpp in the cppcheck repo, which is
more "normal" file. On that file there was no measurable time difference.

A synthetic benchmark was generated to illustrate the effects on dumping
the ast for arrays of different sizes. The generate code looked as
follows:

	const int array[] = {...};

with different number of elements. The results are as follows (times are
in seconds):

	N	master optimized
	10	0.1    0.1
	100	0.1    0.1
	1000	2.8    0.7
	2000	19     1.8
	3000	53     3.8
	5000	350    10
	10000	3215   38

As we can see, for small arrays, there is no time difference, but for
large arrays the time savings are substantial.
2019-04-30 13:35:48 +02:00
Daniel Marjamäki 69faa0d8c8 Refactoring: Use STL algorithms 2019-04-28 07:30:17 +02:00
Rikard Falkeborn 794f65bac1 Handle prefixed strings and characters in Token (#1742)
This makes it possible to call getStrLength() and similar functions
before the tokenizer is called.
2019-03-18 06:18:25 +01:00
Daniel Marjamäki 3f37d5ac2d Refactoring strncpy/strncat checking to use ValueFlow and AST 2019-03-06 09:04:04 +01:00
Daniel Marjamäki bd7790fd8c Update copyright year 2019-02-09 07:24:06 +01:00
Daniel Marjamäki 36ffa91825 Replace std::set::emplace with std::set::insert to make Cppcheck compilable in Slackware 14.0 2019-01-05 18:18:15 +01:00
rikardfalkeborn 036fcf7827 Fix warnings (#1541)
* Fix reorder warning

* Fix override warnings

Clang warns about missing overrides.

* Remove unused function

* Add missing argument to function calls
2018-12-28 12:59:05 +01:00
rebnridgway 431d068339 Several fairly significant optimisations (#1518)
* Code changes for Token::mImpl optimisation

* Added new TokenImpl optimisation

Moving members to the TokenImpl struct reduces the size of the Token class, which is a fairly significant optimisation.  In my testing on Windows with 32-bit Release-PCRE, this change reduced the size of the Token class from 108 bits to 52 bits and reduced run-time of my test case by around 20%.

* Several optimisations

Deleted some code that ran very slowly and did nothing, as there is no need to change a Token's string to null if you are about to delete it.
Added a frontToken to simplifyCalculations to reduce the amount of work it has to do on already-simplified calculations.
Moved template removal to the end of the list as this reduces redundant iteration and saves time.

* Added tok argument to simplifyCalculations

This means callers can avoid unnecessary work if they know which tokens have already been simplified.  Passing nullptr indicates the original behaviour (starting from the front of the list).

* Removed mention of member from another change

* Re-added and optimised some code deleted in error

Changing mTemplateInstantiations to a vector avoids the high cost of doing repeated linear searches.  Changing how the code iterates through the array was necessary because the vector can be resized at several points during the loop, which breaks existing references and iterators.

* Changed mTemplateInstantiations to a vector

This is an optimisation that makes repeated linear searches of this collection significantly faster. 
Also added a copy constructor to TokenAndName so code can make copies of these objects to keep a reference if a vector gets resized.

* A cleaner optimisation to removing template tokens

This reverts the previous change to made mInstantiatedTemplates a vector and the iterator changes to support this, and makes mTypesUsedInTemplateInstantiation so the eraseTokens logic can be unified.

* Reverted vector to list

Also made mTypesUsedInTemplateInstantiation a vector of TokenAndName objects so it can share the same logic as the other members.

* Added member for template simplifier pointer

This can be used more efficiently than marking Tokens with a flag and then searching through all templates to find the one that matches.

* Turned loop inside out

This means we only have to iterate through the std::list once.  std::list is very expensive to iterate through.

* Latest code from danmar and fixed optimisations

In particular I have optimised simplifying template instantiation names as this was incredibly slow because of the number of times it had to iterate through the template instantiation list.  Previous optimisations to this weren't very effective and broke some edge cases.

* Added changes from danmar

Made mExplicitInstantiationsToDelete a vector of TokenAndName to be consistent with the rest of the members, which are cleaned up very efficiently.

* Tokens can have many templateSimplifierPointers

* templateSimplifierPointers must be kept in sync
2018-12-21 13:51:45 +01:00
Daniel Marjamäki 49413b7d4c Tokenizer: Add simplifyAt to handle some nonstandard code with @ 2018-12-04 16:52:41 +01:00
Paul Fultz II 54453c5802 Fix FP when copying pointer to string (#1479) 2018-11-14 06:59:25 +01:00
Daniel Marjamäki 58b21e3071 Refactoring: Reuse Token::expressionString() logic for finding right-most leaf in tree 2018-10-18 12:09:55 +02:00
IOBYTE 0a30768b59 Fixed #8693 (Template specialization: Constructor detected as normal … (#1418)
* Fixed #8693 (Template specialization: Constructor detected as normal function (functionStatic error))

Refactor template simplifier to remove the existing full specialization
function expandSpecialized and allow full specializations to use the
existing function expandTemplate.  The function expandTemplate was
modified to either expand the template like it originally did by copying
it or to modify the template in place.  Both instantiated and
uninstantiated full specializations are modified in place.  This also
fixes #8692 and probably other related tickets as well.

The function simplifyTemplates now tries twice to simplify templates so
more templates can be simplified.  We should try as many times as
necessary to find all possible templates.  We can't do that now because
uninstantiated templates are left unchanged.  It is relatively straight
forward to have the new code also expand in place uninstantiated
templates with their symbolic types but namespaces are not handled
properly (ticket #8671) and it would introduce regressions.

* Fix travis warnings.
2018-10-14 16:57:07 +02:00
IOBYTE 508e8c234b Fixed #8683 (Using deleted token with multiple template instantiations.) (#1353)
* Fixed #8683 (Using deleted token with multiple template instantiations.)

* Fixed #8321 (heap use after free: templatesimplifier)

* Add a flag to Token indicating that it has a pointer to it.

* Run dmake

* Fix one source of list pointers to deleted tokens.

Refactor TemplateSimplifier class to get access to template lists.
Remove many function parameters now that they are class variables.
Fix one source of list pointers to deleted tokens.
Add tests with no output to catch crashes.

* Run dmake again.

* Make 2 more functions private.

* Make requested changes.

* Missed one change request.

* Use TokenList rather than Tokenizer.

* Move TokenAndName constructor to cpp file so token.h is not needed in header file.
2018-09-01 11:26:10 +02:00
Daniel Marjamäki 81f54f7094 Fixed #8681 (ValueFlow: Container size) 2018-08-10 11:29:16 +02:00
Daniel Marjamäki 8032f64c15 Refactoring; Use range for loops 2018-08-10 10:04:10 +02:00
Daniel Marjamäki 93903d96c4 Refactoring, use Token::isUnaryOp and Token::isBinaryOp 2018-07-13 18:52:03 +02:00
Daniel Marjamäki 2c49732eb8 Added Token::isUnaryOp() 2018-07-13 16:40:32 +02:00
Daniel Marjamäki ad4ce84cf7 Rename private member variables 2018-06-17 17:20:16 +02:00
Daniel Marjamäki ac28ae5788 Renamed Token::_str 2018-06-16 23:03:15 +02:00
Daniel Marjamäki 237314fb51 Rename _values to mValues 2018-06-16 21:45:53 +02:00
Daniel Marjamäki 0452c5a4e4 Renamed _bits to mBits 2018-06-16 21:43:44 +02:00
Daniel Marjamäki d468eca772 Renamed _valuetype to mValueType 2018-06-16 21:42:40 +02:00
Daniel Marjamäki 82169b6247 Renamed _originalName to mOriginalName 2018-06-16 21:40:25 +02:00
Daniel Marjamäki 759097301b Rename _link to mLink 2018-06-16 20:30:09 +02:00
Daniel Marjamäki e8a00a38ac Rename _scope to mScope 2018-06-16 20:29:17 +02:00
Daniel Marjamäki 7314fc7557 Rename _enumerator to mEnumerator 2018-06-16 20:27:49 +02:00
Daniel Marjamäki 3ca8372b37 Rename _variable to mVariable 2018-06-16 20:27:13 +02:00
Daniel Marjamäki 964841ba25 Rename _function to mFunction 2018-06-16 20:26:43 +02:00
Daniel Marjamäki 78974e9267 Rename _type to mType 2018-06-16 20:25:54 +02:00
Daniel Marjamäki 31f137f24d Renamed _fileIndex, _linenr, _col 2018-06-16 16:43:54 +02:00
Daniel Marjamäki a6e4663445 Renamed _progressValue to mProgressValue 2018-06-16 16:41:25 +02:00
Daniel Marjamäki aeea2e7427 Renamed _tokType to mTokType 2018-06-16 16:40:02 +02:00
Daniel Marjamäki 8e2b18a75a Rename _varId to mVarId 2018-06-16 16:38:50 +02:00
Daniel Marjamäki cc521bef99 renamed _tokensFrontBack to mTokensFrontBack 2018-06-16 16:22:35 +02:00
Daniel Marjamäki 26d58ddbb9 rename _astOperand1, _astOperand2, _astParent 2018-06-16 16:18:50 +02:00
Daniel Marjamäki 435aa70c3d rename _previous and _next 2018-06-16 16:16:55 +02:00
Daniel Marjamäki 363f4ca939 rename _flags to mFlags 2018-06-16 16:14:34 +02:00
amai2012 db7d267c02 Refactoring: Add _ prefix to Token member variables (#1280) 2018-06-09 08:14:24 +02:00
IOBYTE 3982c81394 Add support for C++ attribute nodiscard for functions. (#1269) 2018-05-29 21:43:56 +02:00
Daniel Marjamäki 7d4a80fbd2 astyle formatting
[ci skip]
2018-05-29 16:30:33 +02:00
orbitcowboy bf20aa2330 token.h: Added const-qualifiers to some functions. 2018-05-29 11:46:07 +02:00
rebnridgway 42a65c5160 Fix crash bug #8579 (#1238)
* Added declaration for deletePrevious function

* Added definition for deletePrevious function

* Fixed crash from deleteThis invalidating pointers

The crash was caused by deleteThis() invalidating the pointer to a constant variable usage.  This happened when a usage followed an assignment.  This fixes bug #8579.

* Added tokensFront to match tokensBack

This means deletePrevious can set the list's front if necessary.

* Initialised tokensFront in appropriate places

* Switched to using default Token constructor

* Switched to using Token default constructor

* Switched to using default constructor for Token

* Added missing argument to Token constructor

* Changed to use default constructor for Tokens

* Switched to using default constructor for Tokens

* Switched to using default constructor for Token

* Added new test for deleting front Token

Also made sure to use the correct constructor for Token in other tests.

* Syntax error

* Replaced tokensFront and tokensBack with a struct

This decreases the size of the Token class for performance purposes.

* Replaced tokensFront and tokensBack with a struct

* Added tokensFrontBack to destructor

* Reworked to use TokensBackFront struct

Also ran astyle.

* Reworked to use TokenList's TokensFrontBack member

* Reworked to use TokensFrontBack struct

* Reworked to use TokensFrontBack struct

* Reworked to work with TokensFrontBack struct

* Removed unnecessary scope operator

* Added missing parentheses

* Fixed syntax error

* Removed unnecessary constructor

* Default constructor now 0-initialises everything

This is safer for not using a temporary TokensFrontBack object, and doesn't use delegating constructors which aren't supported yet.

* Fixed unsafe null check

* Added missing explicit keyword

* Fixing stylistic nits

Removed default constructor as it has been superseded by the single-argument constructor with a default argument value.
Renamed listEnds to tokensFrontBack.
Fixed if statement that was supposed to be adding safety but would actually cause a crash if tokensFrontBack was null.

* Fixing stylistic nits

Removed default constructor and replaced it with a single-argument constructor with a default value.

* Fixing stylistic nits

Renamed _listEnds to _tokensFrontBack.

* Fixing stylistic nits

Renamed _listEnds to _tokensFrontBack.
2018-05-25 07:15:05 +02:00
Daniel Marjamäki 59cc479855 Save bitfield bit counts 2018-05-02 20:55:11 +02:00
Paul 43be20a824 Check more opposite conditions 2018-03-24 07:58:37 +01:00
Daniel Marjamäki c0e14d0a5d Added doxygen comment 2018-03-12 12:49:27 +01:00
Daniel Marjamäki c4caee6b18 Updated copyright year 2018-01-14 15:37:52 +01:00
Daniel Marjamäki bbeff99cc3 Fixed #6930 (Token: need function that says if the token comes from instantiated template argument) 2018-01-11 09:41:22 +01:00