clang: clang::CodeGen::EHScopeStack Class Reference (original) (raw)

A stack of scopes which respond to exceptions, including cleanups and catch blocks. More...

#include "[/home/buildbot/as-worker-4/publish-doxygen-docs/llvm-project/clang/lib/CodeGen/EHScopeStack.h](EHScopeStack%5F8h%5Fsource.html)"

Classes
class	Cleanup
	Information for lazily generating a cleanup. More...

class	ConditionalCleanup
	ConditionalCleanup stores the saved form of its parameters, then restores them and performs the cleanup. More...

class	iterator
	A non-stable pointer into the scope stack. More...

class	stable_iterator
	A saved depth on the scope stack. More...

Public Member Functions
	EHScopeStack ()

	~EHScopeStack ()

	EHScopeStack (const EHScopeStack &)=delete

EHScopeStack &	operator= (const EHScopeStack &)=delete

template<class T , class... As>
void	pushCleanup (CleanupKind Kind, As... A)
	Push a lazily-created cleanup on the stack.

template<class T , class... As>
void	pushCleanupTuple (CleanupKind Kind, std::tuple< As... > A)
	Push a lazily-created cleanup on the stack. Tuple version.

template<class T , class... As>
T *	pushCleanupWithExtra (CleanupKind Kind, size_t N, As... A)
	Push a cleanup with non-constant storage requirements on the stack.

void	pushCopyOfCleanup (CleanupKind Kind, const void *Cleanup, size_t Size)

void	setCGF (CodeGenFunction *inCGF)

void	popCleanup ()
	Pops a cleanup scope off the stack. This is private to CGCleanup.cpp.

class EHCatchScope *	pushCatch (unsigned NumHandlers)
	Push a set of catch handlers on the stack.

void	popCatch ()
	Pops a catch scope off the stack. This is private to CGException.cpp.

class EHFilterScope *	pushFilter (unsigned NumFilters)
	Push an exceptions filter on the stack.

void	popFilter ()
	Pops an exceptions filter off the stack.

void	pushTerminate ()
	Push a terminate handler on the stack.

void	popTerminate ()
	Pops a terminate handler off the stack.

bool	containsOnlyLifetimeMarkers (stable_iterator Old) const

bool	empty () const
	Determines whether the exception-scopes stack is empty.

bool	requiresLandingPad () const

bool	hasNormalCleanups () const
	Determines whether there are any normal cleanups on the stack.

stable_iterator	getInnermostNormalCleanup () const
	Returns the innermost normal cleanup on the stack, or stable_end() if there are no normal cleanups.

stable_iterator	getInnermostActiveNormalCleanup () const

stable_iterator	getInnermostEHScope () const

iterator	begin () const
	Returns an iterator pointing to the innermost EH scope.

iterator	end () const
	Returns an iterator pointing to the outermost EH scope.

stable_iterator	stable_begin () const
	Create a stable reference to the top of the EH stack.

stable_iterator	stabilize (iterator it) const
	Translates an iterator into a stable_iterator.

iterator	find (stable_iterator save) const
	Turn a stable reference to a scope depth into a unstable pointer to the EH stack.

BranchFixup &	addBranchFixup ()
	Add a branch fixup to the current cleanup scope.

unsigned	getNumBranchFixups () const

BranchFixup &	getBranchFixup (unsigned I)

void	popNullFixups ()
	Pops lazily-removed fixups from the end of the list.

void	clearFixups ()
	Clears the branch-fixups list.

A stack of scopes which respond to exceptions, including cleanups and catch blocks.

Definition at line 94 of file EHScopeStack.h.

◆ anonymous enum

clang::CodeGen::EHScopeStack::EHScopeStack ( )	inline

◆ ~EHScopeStack()

clang::CodeGen::EHScopeStack::~EHScopeStack ( )	inline

◆ EHScopeStack() [2/2]

clang::CodeGen::EHScopeStack::EHScopeStack ( const EHScopeStack & )	delete

◆ addBranchFixup()

BranchFixup & clang::CodeGen::EHScopeStack::addBranchFixup ( )	inline

◆ begin()

◆ clearFixups()

void clang::CodeGen::EHScopeStack::clearFixups ( )	inline

◆ containsOnlyLifetimeMarkers()

◆ empty()

bool clang::CodeGen::EHScopeStack::empty ( ) const	inline

◆ end()

Returns an iterator pointing to the outermost EH scope.

Definition at line 619 of file CGCleanup.h.

◆ find()

◆ getBranchFixup()

◆ getInnermostActiveNormalCleanup()

◆ getInnermostEHScope()

stable_iterator clang::CodeGen::EHScopeStack::getInnermostEHScope ( ) const	inline

◆ getInnermostNormalCleanup()

stable_iterator clang::CodeGen::EHScopeStack::getInnermostNormalCleanup ( ) const	inline

◆ getNumBranchFixups()

unsigned clang::CodeGen::EHScopeStack::getNumBranchFixups ( ) const	inline

◆ hasNormalCleanups()

bool clang::CodeGen::EHScopeStack::hasNormalCleanups ( ) const	inline

◆ operator=()

◆ popCatch()

void clang::CodeGen::EHScopeStack::popCatch ( )	inline

◆ popCleanup()

void EHScopeStack::popCleanup	(	)

◆ popFilter()

void EHScopeStack::popFilter	(	)

◆ popNullFixups()

void EHScopeStack::popNullFixups	(	)

Pops lazily-removed fixups from the end of the list.

Remove any 'null' fixups on the stack.

This should only be called by procedures which have just popped a cleanup or resolved one or more fixups.

However, we can't pop more fixups than the fixup depth on the innermost normal cleanup, or else fixups that we try to add to that cleanup will end up in the wrong place. We could try to shrink fixup depths, but that's actually a lot of work for little benefit.

Definition at line 254 of file CGCleanup.cpp.

References find(), and hasNormalCleanups().

Referenced by popCleanup().

◆ popTerminate()

void clang::CodeGen::EHScopeStack::popTerminate ( )	inline

◆ pushCatch()

◆ pushCleanup()

template<class T , class... As>

void clang::CodeGen::EHScopeStack::pushCleanup ( CleanupKind Kind, As... A )	inline

◆ pushCleanupTuple()

template<class T , class... As>

void clang::CodeGen::EHScopeStack::pushCleanupTuple ( CleanupKind Kind, std::tuple< As... > A )	inline

◆ pushCleanupWithExtra()

template<class T , class... As>

T * clang::CodeGen::EHScopeStack::pushCleanupWithExtra ( CleanupKind Kind, size_t N, As... A )	inline

Push a cleanup with non-constant storage requirements on the stack.

The cleanup type must provide an additional static method: static size_t getExtraSize(size_t); The argument to this method will be the value N, which will also be passed as the first argument to the constructor.

The data stored in the extra storage must obey the same restrictions as normal cleanup member data.

The pointer returned from this method is valid until the cleanup stack is modified.

Definition at line 317 of file EHScopeStack.h.

References Kind, ScopeStackAlignment, and clang::T.

Referenced by EnterNewDeleteCleanup().

◆ pushCopyOfCleanup()

void clang::CodeGen::EHScopeStack::pushCopyOfCleanup ( CleanupKind Kind, const void * Cleanup, size_t Size )	inline

◆ pushFilter()

◆ pushTerminate()

void EHScopeStack::pushTerminate	(	)

◆ requiresLandingPad()

bool EHScopeStack::requiresLandingPad	(	)	const

◆ setCGF()

void clang::CodeGen::EHScopeStack::setCGF ( CodeGenFunction * inCGF)	inline

◆ stabilize()

◆ stable_begin()

stable_iterator clang::CodeGen::EHScopeStack::stable_begin ( ) const	inline

◆ stable_end()

static stable_iterator clang::CodeGen::EHScopeStack::stable_end ( )	inlinestatic

The documentation for this class was generated from the following files:

lib/CodeGen/EHScopeStack.h
lib/CodeGen/CGCleanup.cpp
lib/CodeGen/CGCleanup.h