diagnostics::paths::lazy_path Class Reference

#include <lazy-paths.h>

Inheritance diagram for diagnostics::paths::lazy_path:

Collaboration diagram for diagnostics::paths::lazy_path:

Public Member Functions
virtual	~lazy_path ()
unsigned	num_events () const final override
const event &	get_event (int idx) const final override
unsigned	num_threads () const final override
const thread &	get_thread (thread_id_t) const final override
bool	same_function_p (int event_idx_a, int event_idx_b) const final override
bool	generated_p () const
bool	interprocedural_p () const
bool	multithreaded_p () const
const logical_locations::manager &	get_logical_location_manager () const

Protected Member Functions
	lazy_path (const logical_locations::manager &logical_loc_mgr)

Private Member Functions
void	lazily_generate_path () const
virtual std::unique_ptr< path >	make_inner_path () const =0
bool	get_first_event_in_a_function (unsigned *out_idx) const

Private Attributes
std::unique_ptr< path >	m_inner_path
const logical_locations::manager &	m_logical_loc_mgr

Detailed Description

An implementation of diagnostics::paths::path which has a trivial ctor
and lazily creates another path the first time the path
is queried, deferring to this inner path for all queries.

Use this to avoid expensive path creation logic when creating
rich_location instances, so that expense can be deferred until the path
is actually used by a diagnostic, and thus avoided for warnings that
are disabled.   

Constructor & Destructor Documentation

~lazy_path()

virtual diagnostics::paths::lazy_path::~lazy_path ( )

inlinevirtual

lazy_path()

diagnostics::paths::lazy_path::lazy_path ( const logical_locations::manager & logical_loc_mgr )

inlineprotected

References diagnostics::paths::path::path().

Referenced by lazy_diagnostic_context_path::lazy_diagnostic_context_path().

Member Function Documentation

generated_p()

bool diagnostics::paths::lazy_path::generated_p ( ) const

inline

References generated_p(), and m_inner_path.

Referenced by generated_p().

get_event()

const event & lazy_path::get_event ( int idx ) const

finaloverridevirtual

Implements diagnostics::paths::path.

References lazily_generate_path(), and m_inner_path.

get_first_event_in_a_function()

bool path::get_first_event_in_a_function ( unsigned * out_idx ) const

privateinherited

class diagnostics::paths::path.   

Subroutine of path::interprocedural_p.
Look for the first event in this path that is within a function
i.e. has a non-null logical location for which function_p is true.
If found, write its index to *OUT_IDX and return true.
Otherwise return false.   

References get_event(), diagnostics::paths::event::get_logical_location(), i, m_logical_loc_mgr, and num_events().

Referenced by interprocedural_p().

get_logical_location_manager()

const logical_locations::manager & diagnostics::paths::path::get_logical_location_manager ( ) const

inlineinherited

References m_logical_loc_mgr.

Referenced by diagnostics::text_sink::print_path().

get_thread()

const thread & lazy_path::get_thread ( thread_id_t idx ) const

finaloverridevirtual

Implements diagnostics::paths::path.

References lazily_generate_path(), and m_inner_path.

interprocedural_p()

bool path::interprocedural_p ( ) const

inherited

Return true if the events in this path involve more than one
function, or false if it is purely intraprocedural.   

References get_event(), get_first_event_in_a_function(), diagnostics::paths::event::get_stack_depth(), i, num_events(), and same_function_p().

lazily_generate_path()

void lazy_path::lazily_generate_path ( ) const

private

References gcc_assert, m_inner_path, and make_inner_path().

Referenced by get_event(), get_thread(), num_events(), num_threads(), and same_function_p().

make_inner_path()

virtual std::unique_ptr< path > diagnostics::paths::lazy_path::make_inner_path ( ) const

privatepure virtual

Implemented in lazy_diagnostic_context_path.

Referenced by lazily_generate_path().

multithreaded_p()

bool diagnostics::paths::path::multithreaded_p ( ) const

inherited

num_events()

unsigned lazy_path::num_events ( ) const

finaloverridevirtual

class lazy_path : public path.   

Implementation of path vfuncs in terms of a lazily-generated
path.   

Implements diagnostics::paths::path.

References lazily_generate_path(), and m_inner_path.

num_threads()

unsigned lazy_path::num_threads ( ) const

finaloverridevirtual

Implements diagnostics::paths::path.

References lazily_generate_path(), and m_inner_path.

same_function_p()

bool lazy_path::same_function_p ( int event_idx_a, int event_idx_b ) const

finaloverridevirtual

Implements diagnostics::paths::path.

References lazily_generate_path(), and m_inner_path.

Field Documentation

m_inner_path

std::unique_ptr<path> diagnostics::paths::lazy_path::m_inner_path

mutableprivate

Referenced by generated_p(), get_event(), get_thread(), lazily_generate_path(), num_events(), num_threads(), and same_function_p().

m_logical_loc_mgr

const logical_locations::manager& diagnostics::paths::path::m_logical_loc_mgr

privateinherited

Referenced by get_first_event_in_a_function(), get_logical_location_manager(), and path().

---

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

• lazy-paths.h
• lazy-paths.cc