Name Description Size
.clang-format 19
alpha
ArithmeticArgChecker.cpp 2891
ArithmeticArgChecker.h 598
AssertAssignmentChecker.cpp 771
AssertAssignmentChecker.h 610
BaseCheck.h 1094
CanRunScriptChecker.cpp This checker implements the "can run script" analysis. The idea is to detect functions that can run script that are being passed reference-counted arguments (including "this") whose refcount might go to zero as a result of the script running. We want to prevent that. The approach is to attempt to enforce the following invariants on the call graph: 1) Any caller of a MOZ_CAN_RUN_SCRIPT function is itself MOZ_CAN_RUN_SCRIPT. 2) If a virtual MOZ_CAN_RUN_SCRIPT method overrides a base class method, that base class method is also MOZ_CAN_RUN_SCRIPT. Invariant 2 ensures that we don't accidentally call a MOZ_CAN_RUN_SCRIPT function via a base-class virtual call. Invariant 1 ensures that the property of being able to run script propagates up the callstack. There is an opt-out for invariant 1: A function (declaration _or_ implementation) can be decorated with MOZ_CAN_RUN_SCRIPT_BOUNDARY to indicate that we do not require it or any of its callers to be MOZ_CAN_RUN_SCRIPT even if it calls MOZ_CAN_RUN_SCRIPT functions. There are two known holes in invariant 1, apart from the MOZ_CAN_RUN_SCRIPT_BOUNDARY opt-out: - Functions called via function pointers can be MOZ_CAN_RUN_SCRIPT even if their caller is not, because we have no way to determine from the function pointer what function is being called. - MOZ_CAN_RUN_SCRIPT destructors can happen in functions that are not MOZ_CAN_RUN_SCRIPT. https://bugzilla.mozilla.org/show_bug.cgi?id=1535523 tracks this. Given those invariants we then require that when calling a MOZ_CAN_RUN_SCRIPT function all refcounted arguments (including "this") satisfy one of these conditions: a) The argument is held via a strong pointer on the stack. b) The argument is a const strong pointer member of "this". We know "this" is being kept alive, and a const strong pointer member can't drop its ref until "this" dies. c) The argument is an argument of the caller (and hence held by a strong pointer somewhere higher up the callstack). d) The argument is explicitly annotated with MOZ_KnownLive, which indicates that something is guaranteed to keep it alive (e.g. it's rooted via a JS reflector). e) The argument is constexpr and therefore cannot disappear. 20387
CanRunScriptChecker.h 1038
Checks.inc 2405
ChecksIncludes.inc 1769
CustomAttributes.cpp Having annotations in the AST unexpectedly impacts codegen. Ideally, we'd avoid having annotations at all, by using an API such as the one from https://reviews.llvm.org/D31338, and storing the attributes data separately from the AST on our own. Unfortunately, there is no such API currently in clang, so we must do without. We can do something similar, though, where we go through the AST before running the checks, create a mapping of AST nodes to attributes, and remove the attributes/annotations from the AST nodes. Not all declarations can be reached from the decl() AST matcher, though, so we do our best effort (getting the other declarations we look at in checks). We emit a warning when checks look at a note that still has annotations attached (aka, hasn't been seen during our first pass), so that those don't go unnoticed. (-Werror should then take care of making that an error) 4687
CustomAttributes.h CustomAttributes_h_ 1215
CustomAttributes.inc 960
CustomMatchers.h 18981
CustomTypeAnnotation.cpp 6352
CustomTypeAnnotation.h 2850
DanglingOnTemporaryChecker.cpp 10210
DanglingOnTemporaryChecker.h 651
DiagnosticsMatcher.cpp 644
DiagnosticsMatcher.h 800
ExplicitImplicitChecker.cpp 1319
ExplicitImplicitChecker.h 610
ExplicitOperatorBoolChecker.cpp 1187
ExplicitOperatorBoolChecker.h 656
external
FopenUsageChecker.cpp 3313
FopenUsageChecker.h 586
GlobalVariableInitializationChecker.cpp 2837
GlobalVariableInitializationChecker.h 658
import_mozilla_checks.py set(LLVM_LINK_COMPONENTS support) add_definitions( -DCLANG_TIDY ) add_clang_library(clangTidyMozillaModule ThirdPartyPaths.cpp %(names)s LINK_LIBS clangTidy clangTidyReadabilityModule clangTidyUtils clangTidyMPIModule ) clang_target_link_libraries(clangTidyMozillaModule PRIVATE clangAST clangASTMatchers clangBasic clangLex ) 5650
JSHandleRootedTypedefChecker.cpp 1404
JSHandleRootedTypedefChecker.h 699
KnownLiveChecker.cpp 1399
KnownLiveChecker.h 620
KungFuDeathGripChecker.cpp 4168
KungFuDeathGripChecker.h 606
LoadLibraryUsageChecker.cpp 1352
LoadLibraryUsageChecker.h 650
MemMoveAnnotation.h 3060
moz.build 5431
MozCheckAction.cpp 985
MozillaTidyModule.cpp 1300
mozsearch-plugin
MustOverrideChecker.cpp 2273
MustOverrideChecker.h 706
MustReturnFromCallerChecker.cpp 4329
MustReturnFromCallerChecker.h 905
NaNExprChecker.cpp 2333
NaNExprChecker.h 574
NeedsNoVTableTypeChecker.cpp 1381
NeedsNoVTableTypeChecker.h 614
NoAddRefReleaseOnReturnChecker.cpp 1381
NoAddRefReleaseOnReturnChecker.h 671
NoAutoTypeChecker.cpp 809
NoAutoTypeChecker.h 586
NoDuplicateRefCntMemberChecker.cpp 2627
NoDuplicateRefCntMemberChecker.h 671
NoExplicitMoveConstructorChecker.cpp 892
NoExplicitMoveConstructorChecker.h 681
NoNewThreadsChecker.cpp 1459
NoNewThreadsChecker.h 630
NonMemMovableMemberChecker.cpp 1299
NonMemMovableMemberChecker.h 651
NonMemMovableTemplateArgChecker.cpp 2323
NonMemMovableTemplateArgChecker.h 676
NonParamInsideFunctionDeclChecker.cpp 7898
NonParamInsideFunctionDeclChecker.h 686
NonTrivialTypeInFfiChecker.cpp 1945
NonTrivialTypeInFfiChecker.h 651
NoPrincipalGetURI.cpp 1102
NoPrincipalGetURI.h 586
NoUsingNamespaceMozillaJavaChecker.cpp 906
NoUsingNamespaceMozillaJavaChecker.h 691
OverrideBaseCallChecker.cpp 3677
OverrideBaseCallChecker.h 1063
OverrideBaseCallUsageChecker.cpp 798
OverrideBaseCallUsageChecker.h This is a companion checker for OverrideBaseCallChecker that rejects the usage of MOZ_REQUIRED_BASE_METHOD on non-virtual base methods. 841
ParamTraitsEnumChecker.cpp 1334
ParamTraitsEnumChecker.h 606
plugin.h 1676
RecurseGuard.h 1655
RefCountedCopyConstructorChecker.cpp 1427
RefCountedCopyConstructorChecker.h 681
RefCountedInsideLambdaChecker.cpp 6194
RefCountedInsideLambdaChecker.h 1029
RefCountedThisInsideConstructorChecker.cpp 1144
RefCountedThisInsideConstructorChecker.h 744
ScopeChecker.cpp 7183
ScopeChecker.h 566
SprintfLiteralChecker.cpp 3209
SprintfLiteralChecker.h 602
StmtToBlockMap.h 2923
tests
ThirdPartyPaths.h 495
ThirdPartyPaths.py This file generates a ThirdPartyPaths.cpp file from the ThirdPartyPaths.txt file in /tools/rewriting, which is used by the Clang Plugin to help identify sources which should be ignored. 918
ThreadAllows.py \ static const char *allow_thread_{which}[] = {{ {allowed_list_s} }}; 2764
ThreadAllows.txt 2692
ThreadFileAllows.txt 2682
TrivialCtorDtorChecker.cpp 1229
TrivialCtorDtorChecker.h 606
TrivialDtorChecker.cpp 815
TrivialDtorChecker.h 590
Utils.h 15811
VariableUsageHelpers.cpp 9808
VariableUsageHelpers.h 2636