Abstraction for a function declaration. More...

#include <abg-ir.h>

Inheritance diagram for function_decl:

Classes
struct	hash
	A hashing functor fo instances and pointers of function_decl. More...

class	parameter
	Abstraction of a function parameter. More...

struct	ptr_equal
	Equality functor for instances of function_decl. More...

Public Types
typedef shared_ptr< parameter >	parameter_sptr
	Convenience typedef for a shared pointer on a function_decl::parameter. More...

typedef std::vector< parameter_sptr >	parameters
	Convenience typedef for a vector of parameter_sptr. More...

Public Types inherited from decl_base
enum	binding { BINDING_NONE , BINDING_LOCAL , BINDING_GLOBAL , BINDING_WEAK }
	ELF binding. More...

enum	visibility { VISIBILITY_NONE , VISIBILITY_DEFAULT , VISIBILITY_PROTECTED , VISIBILITY_HIDDEN , VISIBILITY_INTERNAL }
	ELF visibility. More...

Public Member Functions
	function_decl (const string &name, function_type_sptr function_type, bool declared_inline, const location &locus, const string &mangled_name, visibility vis, binding bind)
	Constructor of the function_decl. More...

	function_decl (const string &name, type_base_sptr fn_type, bool declared_inline, const location &locus, const string &mangled_name="", visibility vis=VISIBILITY_DEFAULT, binding bind=BINDING_GLOBAL)
	Constructor of the function_decl type. More...

virtual	~function_decl ()
	Destructor of the function_decl type. More...

void	append_parameter (parameter_sptr parm)
	Append a parameter to the type of this function. More...

void	append_parameters (std::vector< parameter_sptr > &parms)
	Append a vector of parameters to the type of this function. More...

function_decl_sptr	clone () const
	Create a new instance of function_decl that is a clone of the current one. More...

binding	get_binding () const

parameters::const_iterator	get_first_non_implicit_parm () const
	Getter for the first non-implicit parameter of a function decl. More...

virtual size_t	get_hash () const
	The virtual implementation of 'get_hash' for a function_decl. More...

interned_string	get_id () const
	Return an ID that tries to uniquely identify the function inside a program or a library. More...

const function_type *	get_naked_type () const
	Fast getter of the type of the current instance of function_decl. More...

const std::vector< parameter_sptr > &	get_parameters () const

virtual string	get_pretty_representation (bool internal=false, bool qualified_name=true) const
	Get the pretty representation of the current instance of function_decl. More...

string	get_pretty_representation_of_declarator (bool internal=false) const
	Compute and return the pretty representation for the part of the function declaration that starts at the declarator. That is, the return type and the other specifiers of the beginning of the function's declaration ar omitted. More...

const type_base_sptr	get_return_type () const

const elf_symbol_sptr &	get_symbol () const
	Gets the the underlying ELF symbol for the current variable, that was set using function_decl::set_symbol(). Please read the documentation for that member function for more information about "underlying ELF symbols". More...

const function_type_sptr	get_type () const
	Return the type of the current instance of function_decl. More...

bool	is_declared_inline () const

bool	is_variadic () const
	Return true iff the function takes a variable number of parameters. More...

virtual bool	operator== (const decl_base &o) const
	Comparison operator for function_decl. More...

void	set_symbol (const elf_symbol_sptr &sym)
	This sets the underlying ELF symbol for the current function decl. More...

void	set_type (const function_type_sptr &fn_type)

virtual bool	traverse (ir_node_visitor &)
	This implements the ir_traversable_base::traverse pure virtual function. More...

Public Member Functions inherited from decl_base
	decl_base (const environment &, const location &)
	Constructor for the decl_base type. More...

	decl_base (const environment &e, const interned_string &name, const location &locus, const interned_string &mangled_name=interned_string(), visibility vis=VISIBILITY_DEFAULT)
	Constructor. More...

	decl_base (const environment &e, const string &name, const location &locus, const string &mangled_name="", visibility vis=VISIBILITY_DEFAULT)
	Constructor for the decl_base type. More...

virtual	~decl_base ()
	Destructor of the decl_base type. More...

const decl_base_sptr	get_definition_of_declaration () const
	If this decl_base is declaration-only, get its definition, if any. More...

const decl_base_sptr	get_earlier_declaration () const
	If this decl_base is a definition, get its earlier declaration. More...

bool	get_has_anonymous_parent () const
	Get the "has_anonymous_parent" flag of the current declaration. More...

bool	get_is_anonymous () const
	Test if the current declaration is anonymous. More...

bool	get_is_anonymous_or_has_anonymous_parent () const

bool	get_is_declaration_only () const
	Test if a decl_base is a declaration-only decl. More...

bool	get_is_in_public_symbol_table () const
	Test if the decl is defined in a ELF symbol table as a public symbol. More...

const interned_string &	get_linkage_name () const
	Getter for the mangled name. More...

const location &	get_location () const
	Get the location of a given declaration. More...

const decl_base *	get_naked_definition_of_declaration () const
	If this decl_base is declaration-only, get its definition, if any. More...

const interned_string &	get_name () const
	Getter for the name of the current decl. More...

typedef_decl_sptr	get_naming_typedef () const
	Getter for the naming typedef of the current decl. More...

virtual const interned_string &	get_qualified_name (bool internal=false) const
	Return the qualified name of the decl. More...

virtual void	get_qualified_name (interned_string &qualified_name, bool internal=false) const
	Compute the qualified name of the decl. More...

const interned_string &	get_qualified_parent_name () const
	Return a copy of the qualified name of the parent of the current decl. More...

scope_decl *	get_scope () const
	Return the type containing the current decl, if any. More...

virtual const interned_string &	get_scoped_name () const
	Return the scoped name of the decl. More...

visibility	get_visibility () const
	Getter for the visibility of the decl. More...

virtual bool	operator!= (const decl_base &) const
	Inequality operator. More...

void	set_definition_of_declaration (const decl_base_sptr &)
	Set the definition of this declaration-only decl_base. More...

void	set_earlier_declaration (const decl_base_sptr &)
	set the earlier declaration of this decl_base definition. More...

void	set_is_anonymous (bool)
	Set the "is_anonymous" flag of the current declaration. More...

void	set_is_declaration_only (bool f)
	Set a flag saying if the enum_type_decl is a declaration-only enum_type_decl. More...

void	set_is_in_public_symbol_table (bool)
	Set the flag saying if this decl is from a symbol that is in a public symbols table, defined as public (global or weak). More...

virtual void	set_linkage_name (const string &m)
	Setter for the linkage name. More...

void	set_location (const location &l)
	Set the location for a given declaration. More...

void	set_name (const string &n)
	Setter for the name of the decl. More...

void	set_naming_typedef (const typedef_decl_sptr &)
	Set the naming typedef of the current instance of decl_base. More...

virtual void	set_scope (scope_decl *)
	Setter of the scope of the current decl. More...

void	set_visibility (visibility v)
	Setter for the visibility of the decl. More...

Public Member Functions inherited from type_or_decl_base
	type_or_decl_base (const environment &, enum type_or_decl_kind k=ABSTRACT_TYPE_OR_DECL)
	Constructor of type_or_decl_base. More...

virtual	~type_or_decl_base ()
	The destructor of the type_or_decl_base type. More...

location &	get_artificial_location () const
	Getter of the artificial location of the artifact. More...

corpus *	get_corpus ()
	Get the corpus this ABI artifact belongs to. More...

const corpus *	get_corpus () const
	Get the corpus this ABI artifact belongs to. More...

const environment &	get_environment () const
	Getter of the environment of the current ABI artifact. More...

bool	get_is_artificial () const
	Getter of the flag that says if the artefact is artificial. More...

translation_unit *	get_translation_unit ()
	Get the translation_unit this ABI artifact belongs to. More...

const translation_unit *	get_translation_unit () const
	Get the translation_unit this ABI artifact belongs to. More...

bool	has_artificial_location () const
	Test if the current ABI artifact carries an artificial location. More...

void	set_artificial_location (const location &)
	Setter of the artificial location of the artificat. More...

void	set_is_artificial (bool)
	Setter of the flag that says if the artefact is artificial. More...

void	set_translation_unit (translation_unit *)
	Set the translation_unit this ABI artifact belongs to. More...

Public Member Functions inherited from traversable_base
virtual	~traversable_base ()
	Destructor of the traversable_base type. More...

Additional Inherited Members
Public Attributes inherited from decl_base
priv *	priv_

Protected Types inherited from type_or_decl_base
enum	type_or_decl_kind { ABSTRACT_TYPE_OR_DECL , ABSTRACT_DECL_BASE , ABSTRACT_SCOPE_DECL , GLOBAL_SCOPE_DECL , NAMESPACE_DECL , VAR_DECL , FUNCTION_DECL , FUNCTION_PARAMETER_DECL , METHOD_DECL , TEMPLATE_DECL , ABSTRACT_TYPE_BASE , ABSTRACT_SCOPE_TYPE_DECL , BASIC_TYPE , QUALIFIED_TYPE , POINTER_TYPE , REFERENCE_TYPE , ARRAY_TYPE , ENUM_TYPE , TYPEDEF_TYPE , CLASS_TYPE , UNION_TYPE , FUNCTION_TYPE , METHOD_TYPE }
	This is a bitmap type which instance is meant to contain the runtime type of a given ABI artifact. Bits of the identifiers of the type of a given artifact as well as the types it inherits from are to be set to 1. More...

Protected Member Functions inherited from decl_base
	decl_base (const decl_base &)

void	clear_qualified_name ()
	Clear the qualified name of this decl. More...

context_rel *	get_context_rel ()
	Getter for the context relationship. More...

const context_rel *	get_context_rel () const
	Getter for the context relationship. More...

const interned_string &	peek_qualified_name () const
	Getter for the qualified name. More...

const interned_string &	peek_temporary_qualified_name () const
	Getter of the temporary qualified name of the current declaration. More...

void	set_context_rel (context_rel *c)

void	set_qualified_name (const interned_string &) const
	Setter for the qualified name. More...

void	set_temporary_qualified_name (const interned_string &) const
	Setter for the temporary qualified name of the current declaration. More...

Protected Member Functions inherited from type_or_decl_base
bool	hashing_started () const
	Getter for the 'hashing_started' property. More...

void	hashing_started (bool) const
	Setter for the 'hashing_started' property. More...

enum type_or_decl_kind	kind () const
	Getter for the "kind" property of type_or_decl_base type. More...

void	kind (enum type_or_decl_kind)
	Setter for the "kind" property of type_or_decl_base type. More...

type_or_decl_base &	operator= (const type_or_decl_base &)

void *	runtime_type_instance ()
	Getter of the pointer to the runtime type sub-object of the current instance. More...

const void *	runtime_type_instance () const
	Getter of the pointer to the runtime type sub-object of the current instance. More...

void	runtime_type_instance (void *)
	Setter of the pointer to the runtime type sub-object of the current instance. More...

void *	type_or_decl_base_pointer ()
	Getter of the pointer to either the type_base sub-object of the current instance if it's a type, or to the decl_base sub-object of the current instance if it's a decl. More...

const void *	type_or_decl_base_pointer () const
	Getter of the pointer to either the type_base sub-object of the current instance if it's a type, or to the decl_base sub-object of the current instance if it's a decl. More...

Protected Member Functions inherited from traversable_base
	traversable_base ()
	Default constructor of the traversable_base type. More...

bool	visiting () const
	This should returns false before and after the node has been visiting. During the visiting of the node (and of its children) this should return true. More...

void	visiting (bool f)
	The traversing code should be responsible of calling this, not the user code. More...

Detailed Description

Abstraction for a function declaration.

Definition at line 3046 of file abg-ir.h.

Member Typedef Documentation

◆ parameter_sptr

typedef shared_ptr<parameter> parameter_sptr

Convenience typedef for a shared pointer on a function_decl::parameter.

Definition at line 3071 of file abg-ir.h.

◆ parameters

typedef std::vector<parameter_sptr> parameters

Convenience typedef for a vector of parameter_sptr.

Definition at line 3074 of file abg-ir.h.

Constructor & Destructor Documentation

◆ function_decl() [1/2]

function_decl	(	const string &	name,
		function_type_sptr	function_type,
		bool	declared_inline,
		const location &	locus,
		const string &	mangled_name,
		visibility	vis,
		binding	bind
	)

Constructor of the function_decl.

Parameters

name	the name of the function.
function_type	the type of the function.
declared_inline	wether the function is declared inline.
locus	the source location of the function.
mangled_name	the linkage name of the function.
vis	the visibility of the function.
bind	the binding of the function.

Definition at line 21254 of file abg-ir.cc.

◆ function_decl() [2/2]

function_decl	(	const string &	name,
		type_base_sptr	fn_type,
		bool	declared_inline,
		const location &	locus,
		const string &	linkage_name = `""`,
		visibility	vis = `VISIBILITY_DEFAULT`,
		binding	bind = `BINDING_GLOBAL`
	)

Constructor of the function_decl type.

This flavour of constructor is for when the pointer to the instance of function_type that the client code has is presented as a pointer to type_base. In that case, this constructor saves the client code from doing a dynamic_cast to get the function_type pointer.

Parameters

name	the name of the function declaration.
fn_type	the type of the function declaration. The dynamic type of this parameter should be 'pointer to function_type'
declared_inline	whether this function was declared inline
locus	the source location of the function declaration.
linkage_name	the mangled name of the function declaration.
vis	the visibility of the function declaration.
bind	the kind of the binding of the function declaration.

Definition at line 21292 of file abg-ir.cc.

◆ ~function_decl()

~function_decl ( )

virtual

Destructor of the function_decl type.

Definition at line 21876 of file abg-ir.cc.

Member Function Documentation

◆ append_parameter()

void append_parameter ( parameter_sptr parm )

Append a parameter to the type of this function.

Parameters

parm	the parameter to append.

Definition at line 21532 of file abg-ir.cc.

◆ append_parameters()

void append_parameters ( std::vector< parameter_sptr > & parms )

Append a vector of parameters to the type of this function.

Parameters

parms the vector of parameters to append.

Definition at line 21539 of file abg-ir.cc.

◆ clone()

function_decl_sptr clone ( ) const

Create a new instance of function_decl that is a clone of the current one.

Returns: the new clone.

Definition at line 21552 of file abg-ir.cc.

◆ get_first_non_implicit_parm()

function_decl::parameters::const_iterator get_first_non_implicit_parm ( ) const

Getter for the first non-implicit parameter of a function decl.

If the function is a non-static member function, the parameter returned is the first one following the implicit 'this' parameter.

Returns: the first non implicit parm.

Definition at line 21435 of file abg-ir.cc.

◆ get_hash()

size_t get_hash ( ) const

virtual

The virtual implementation of 'get_hash' for a function_decl.

This allows decl_base::get_hash to work for function_decls.

Returns: the hash value for function decl.

Reimplemented from decl_base.

Definition at line 21775 of file abg-ir.cc.

◆ get_id()

interned_string get_id ( ) const

Return an ID that tries to uniquely identify the function inside a program or a library.

So if the function has an underlying elf symbol, the ID is the concatenation of the symbol name and its version. Otherwise, the ID is the linkage name if its non-null. Otherwise, it's the pretty representation of the function.

Returns: the ID.

Definition at line 21791 of file abg-ir.cc.

◆ get_naked_type()

const function_type * get_naked_type ( ) const

Fast getter of the type of the current instance of function_decl.

Note that this function returns the underlying pointer managed by the smart pointer returned by function_decl::get_type(). It's faster than function_decl::get_type(). This getter is to be used in code paths that are proven to be performance hot spots; especially (for instance) when comparing function types. Those are compared extremely frequently when libabigail is used to handle huge binaries with a lot of functions.

Returns: the type of the current instance of function_decl.

Definition at line 21469 of file abg-ir.cc.

◆ get_parameters()

const std::vector< shared_ptr< function_decl::parameter > > & get_parameters ( ) const

Returns: the parameters of the function.

Definition at line 21525 of file abg-ir.cc.

◆ get_pretty_representation()

string get_pretty_representation	(	bool	internal = `false`,
		bool	qualified_name = `true`
	)		const

virtual

Get the pretty representation of the current instance of function_decl.

Parameters

internal set to true if the call is intended to get a representation of the decl (or type) for the purpose of canonical type comparison. This is mainly used in the function type_base::get_canonical_type_for().

In other words if the argument for this parameter is true then the call is meant for internal use (for technical use inside the library itself), false otherwise. If you don't know what this is for, then set it to false.

Returns: the pretty representation for a function.

Reimplemented from decl_base.

Definition at line 21323 of file abg-ir.cc.

◆ get_pretty_representation_of_declarator()

string get_pretty_representation_of_declarator ( bool internal = false ) const

Compute and return the pretty representation for the part of the function declaration that starts at the declarator. That is, the return type and the other specifiers of the beginning of the function's declaration ar omitted.

Parameters

internal set to true if the call is intended to get a representation of the decl (or type) for the purpose of canonical type comparison. This is mainly used in the function type_base::get_canonical_type_for().

In other words if the argument for this parameter is true then the call is meant for internal use (for technical use inside the library itself), false otherwise. If you don't know what this is for, then set it to false.

Returns: the pretty representation for the part of the function declaration that starts at the declarator.

Definition at line 21375 of file abg-ir.cc.

◆ get_return_type()

const shared_ptr< type_base > get_return_type ( ) const

Returns: the return type of the current instance of function_decl.

Definition at line 21520 of file abg-ir.cc.

◆ get_symbol()

const elf_symbol_sptr & get_symbol ( ) const

Gets the the underlying ELF symbol for the current variable, that was set using function_decl::set_symbol(). Please read the documentation for that member function for more information about "underlying ELF symbols".

Returns: sym the underlying ELF symbol for this function decl, if one exists.

Definition at line 21507 of file abg-ir.cc.

◆ get_type()

const shared_ptr< function_type > get_type ( ) const

Return the type of the current instance of function_decl.

It's either a function_type or method_type.

Returns: the type of the current instance of function_decl.

Definition at line 21454 of file abg-ir.cc.

◆ is_variadic()

bool is_variadic ( ) const

Return true iff the function takes a variable number of parameters.

Returns: true if the function taks a variable number of parameters.

Definition at line 21763 of file abg-ir.cc.

◆ operator==()

bool operator== ( const decl_base & other ) const

virtual

Comparison operator for function_decl.

Parameters

other the other instance of function_decl to compare against.

Returns: true iff the current instance of function_decl equals other.

Reimplemented from decl_base.

Definition at line 21749 of file abg-ir.cc.

◆ set_symbol()

void set_symbol ( const elf_symbol_sptr & sym )

This sets the underlying ELF symbol for the current function decl.

And underlyin$g ELF symbol for the current function decl might exist only if the corpus that this function decl originates from was constructed from an ELF binary file.

Note that comparing two function decls that have underlying ELF symbols involves comparing their underlying elf symbols. The decl name for the function thus becomes irrelevant in the comparison.

Parameters

sym	the new ELF symbol for this function decl.

Definition at line 21491 of file abg-ir.cc.

◆ traverse()

bool traverse ( ir_node_visitor & v )

virtual

This implements the ir_traversable_base::traverse pure virtual function.

Parameters

v	the visitor used on the current instance.

Returns: true if the entire IR node tree got traversed, false otherwise.

Reimplemented from decl_base.

Definition at line 21860 of file abg-ir.cc.

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

/home/dodji/git/libabigail/master/include/abg-ir.h
/home/dodji/git/libabigail/master/src/abg-ir.cc

Classes

Public Types

Public Member Functions

Additional Inherited Members

Detailed Description

Member Typedef Documentation

◆ parameter_sptr

◆ parameters

Constructor & Destructor Documentation

◆ function_decl() [1/2]

◆ function_decl() [2/2]

◆ ~function_decl()

Member Function Documentation

◆ append_parameter()

◆ append_parameters()

◆ clone()

◆ get_first_non_implicit_parm()

◆ get_hash()

◆ get_id()

◆ get_naked_type()

◆ get_parameters()

◆ get_pretty_representation()

◆ get_pretty_representation_of_declarator()

◆ get_return_type()

◆ get_symbol()

◆ get_type()

◆ is_variadic()

◆ operator==()

◆ set_symbol()

◆ traverse()