Commit Graph

520 Commits

Author SHA1 Message Date
Paul Fultz II 1ffcc6b730 Add initial lifetime checker (#1448)
* Inital valueflow lifetime checker

* Forward values

* Add initial tests

* Fix deplicate messages

* Fix traversing nested lambdas

* Turn test case into a todo

* Skip if returning a container

* Fix FP when using references

* Add missing header

* Fix FP from broken scopes

* Fix FP with static variable

* Add test for more FPs

* Parse lambda functions

* Check for capture by value

* Add tests for using a container and lambda together

* Fix cppcheck errors

* Add test for nextAfterAstRightmostLeaf

* Add valueflow tests

* Update error message

* Check for correct lambda token

* Improve error path reporting

* Fix hang when parsing arrays that look almlost like lambdas
2018-11-10 16:40:40 +01:00
Paul Fultz II 36e663e250 Fix issue 8839: FP knownConditionTrueFalse - condition inside a while-clause (#1469) 2018-11-09 06:09:51 +01:00
Paul Fultz II 7373be2bfa Add a pass in valueflow for terminating conditions (#1323)
* Add valueflow for terminating conditions

* Add valueflow test

* Dont check for same expressions for now to avoid double diagnostics

* Check nesting

* Add more tests

* Ensure conditions happen in order

* Check for null

* Add error path

* Support same expression check as well

* Use early continue

* Skip checking the same token

* Avoid double condtion diagnosis

* Fix FP when in switch statements

* Fix FP when time function

* Skip conditional escapes

* Use simpleMatch

* Fix naming

* Fix typo
2018-11-07 06:49:07 +01:00
Daniel Marjamäki 35d18be311 ValueFlow: Refactoring, removed redundant assignment 2018-11-06 07:02:20 +01:00
Daniel Marjamäki 00340efc57 ValueFlow: Refactoring valueFlowCallFunction 2018-11-06 06:38:26 +01:00
Daniel Marjamäki ca19894a04 ValueFlow: In evaluate handle correlated values 2018-11-05 18:07:35 +01:00
Daniel Marjamäki da44ce0b5d ValueFlow: evaluate strlen and char literals better 2018-11-05 16:52:12 +01:00
Daniel Marjamäki 977fdd88a9 ValueFlow: Fix a few issues in 'evaluate' 2018-11-05 06:53:48 +01:00
Daniel Marjamäki 8a54420274 ValueFlow: Try to handle multiple argument values in <returnValue> evaluation 2018-11-04 20:52:12 +01:00
Daniel Marjamäki dd9a1e890b valueFlowRightShift: Do not perform analysis when rhs is negative 2018-11-04 17:13:23 +01:00
Daniel Marjamäki 6878de2c5e ValueFlow: getExpressionRange, valueFlowRightShift 2018-11-03 23:25:46 +01:00
Daniel Marjamäki ef35b86b4a Multipass Valueflow 2018-11-03 15:53:24 +01:00
Daniel Marjamäki 614a252704 Fix Match warning 2018-11-02 20:14:34 +01:00
Daniel Marjamäki 5de683ec49 Container size: Fix false positive 2018-11-02 20:10:40 +01:00
Daniel Marjamäki 16cc20a232 ValueFlow: Better handling of container size values 2018-11-02 18:28:32 +01:00
Daniel Marjamäki c03d32b429 ValueFlow: Improve containerSize handling of string like classes 2018-10-28 19:14:00 +01:00
Daniel Marjamäki 06ede9c239 ValueFlow: handle x+=y for containers 2018-10-27 18:38:04 +02:00
Paul Fultz II 16c62281d0 Use followVar in checking duplicateBranch (#1423)
* Use isSameExpression for duplicate branches

* Add errorPath

* Add another test
2018-10-18 11:56:23 +02:00
Paul Fultz II f65cf220ba Fix false positives in unknownEvaluationOrder when using followVar (#1391)
Fix false positives in unknownEvaluationOrder when using followVar
2018-09-28 08:38:24 +02:00
orbitcowboy d08b39c915
Improved const correctness of local variables. There are no functional changes intended. (#1392) 2018-09-23 20:24:51 +02:00
Daniel Marjamäki d7de46f50e ValueFlow: Fix false positive for container size 2018-09-08 10:43:08 +02:00
Daniel Marjamäki c6d43506b6 ValueFlow: Fix FP in switch 2018-09-04 20:28:48 +02:00
Daniel Marjamäki cc402869a6 Fixed #8689 (False positive: containerOutOfBounds after function call) 2018-09-02 14:08:34 +02:00
Daniel Marjamäki 6223204a06 Fixed #8708 (FP: Accessing an item in container that is empty) 2018-08-27 13:49:47 +02:00
Daniel Marjamäki 2f834c3c3b Fixed #8688 (False positive: containerOutOfBounds) 2018-08-13 21:27:29 +02:00
Daniel Marjamäki 55ab842083 valueFlowSizeForward: Bailout when function calls modify the container size 2018-08-13 06:54:18 +02:00
Daniel Marjamäki 183345a939 valueFlowContainerSize: Fix FP when container size is changed 2018-08-12 22:23:19 +02:00
Daniel Marjamäki 7074eeb869 valueFlowContainerSize: assignment of string-like containers 2018-08-12 22:01:58 +02:00
Daniel Marjamäki 189ea5003a valueFlowContainerSize: empty container variables 2018-08-12 14:41:00 +02:00
Daniel Marjamäki 811a71aa06 valueFlowContainerSize: Handle guard logic 2018-08-11 15:08:54 +02:00
Daniel Marjamäki 6008bbdfb4 valueFlowContainerSize: Fix wrong value after condition if conditional code escapes 2018-08-11 13:49:42 +02:00
Daniel Marjamäki 10461e5429 valueFlowContainerSize: forward analysis inside conditional code 2018-08-10 22:18:38 +02:00
Daniel Marjamäki 4a502a7f6b valueFlowContainerSize: add simple forward analysis 2018-08-10 22:06:23 +02:00
Daniel Marjamäki 2b10e38eec valueFlowContainerSize: handling of 'v.size() == 10' 2018-08-10 21:43:47 +02:00
Paul Fultz II 3947c23290 Fix issue 8369: False negative: Condition 'condition' is always true (#1325)
* Fix issue 8369: False negative: Condition 'condition' is always true

* Use simpleMatch

* Add iterator header

* Cleanup

* Remove unused variable
2018-08-10 18:05:23 +02:00
Daniel Marjamäki 3805af18a2 valueFlowContainerSize: Fix crash when container pointer is null 2018-08-10 12:53:16 +02:00
Daniel Marjamäki f37434cd1d valueFlowContainerReverse: Fix FPs when there is assignment 2018-08-10 12:26:53 +02:00
Daniel Marjamäki 907f81d059 ValueFlow: Improved analysis of container size 2018-08-10 11:53:56 +02:00
Daniel Marjamäki 81f54f7094 Fixed #8681 (ValueFlow: Container size) 2018-08-10 11:29:16 +02:00
Daniel Marjamäki c666f74755 astyle formatting
[ci skip]
2018-07-25 23:02:16 +02:00
Paul Fultz II f093692551 ValueFlow: Set values in else branch even when the first branch modifies the value (#1309)
* Set values in else branch even when the first branch modifies the value

* Move tests

* Add check for goto

* Remvoe todo

* Also check scope is noreturn

* Use isEscapeScope when variables are changed
2018-07-25 22:59:54 +02:00
Paul Fultz II 9895ea5ff2 Fix issue 470: Condition is always true or false on logical operators (#1294)
* Fix issue 470: Condition is always true or false on logical operators

* Dont warn on literals

* Compute logical operators using valueflow

* Fix FP when using literals

* Always warn on subconditions that are always true

* Use percent matches first

* Add test for logical operators

* Check if parent is null
2018-07-23 08:51:59 +02:00
Daniel Marjamäki 991300ac54 Clarify code with Token::isUnaryOp() 2018-07-14 22:36:08 +02:00
Daniel Marjamäki 1e824330c0 Refactoring: Use range for loops 2018-07-14 22:26:22 +02:00
Daniel Marjamäki 0f3cc56c59 Refactoring: Use range for loops 2018-07-14 13:19:41 +02:00
Daniel Marjamäki d603a811bb Clarify code with Token::hasKnownValue() 2018-07-14 13:09:53 +02:00
orbitcowboy de66eedd54 Improved const correctness of local variables. 2018-05-29 17:33:43 +02:00
Daniel Marjamäki 8e8919e906 Fix comment 2018-05-07 22:06:23 +02:00
Daniel Marjamäki 8c2a5c9813 astyle formatting
[ci skip]
2018-05-06 09:50:53 +02:00
Paul Fultz II 0561877182 Fix false positive with negative array index in issue 8536 (#1202)
* Fix FP with negative array index in valueflow

* Remove values when valueflow fails

* Add valueflow test
2018-05-06 08:35:29 +02:00