retdec
|
A definition of a global variable. More...
#include <global_var_def.h>
Public Member Functions | |
virtual ShPtr< Value > | clone () override |
Returns a clone of the value. More... | |
virtual bool | isEqualTo (ShPtr< Value > otherValue) const override |
Returns true if this value is equal to otherValue, false otherwise. More... | |
void | replace (ShPtr< Expression > oldExpr, ShPtr< Expression > newExpr) |
ShPtr< Variable > | getVar () const |
Return the variable. More... | |
ShPtr< Expression > | getInitializer () const |
Returns the variable initializer. More... | |
bool | hasInitializer () const |
Returns true if the global variable has an initializer, false otherwise. More... | |
bool | definesExternalVar () const |
Checks if it defines an external global variable. More... | |
Address | getAddress () const |
void | setVar (ShPtr< Variable > newVar) |
Sets a new variable. More... | |
void | setInitializer (ShPtr< Expression > newInit) |
Sets a new initializer. More... | |
void | removeInitializer () |
Removes the initializer. More... | |
Observer Interface | |
virtual void | update (ShPtr< Value > subject, ShPtr< Value > arg=nullptr) override |
Updates the definition according to the changes of subject. More... | |
Visitor Interface | |
virtual void | accept (Visitor *v) override |
Visitor pattern implementation. More... | |
![]() | |
virtual | ~Value ()=default |
virtual ShPtr< Value > | getSelf () override |
Returns a shared pointer of self. More... | |
std::string | getTextRepr () |
Returns a textual representation of the value. More... | |
![]() | |
void | setMetadata (std::string data) |
Attaches new metadata. More... | |
std::string | getMetadata () const |
Returns the attached metadata. More... | |
bool | hasMetadata () const |
Are there any non-empty metadata? More... | |
![]() | |
Observer ()=default | |
Creates a new observer. More... | |
virtual | ~Observer ()=default |
Destructs the observer. More... | |
![]() | |
Subject () | |
Creates a new subject. More... | |
virtual | ~Subject ()=default |
Destructs the subject. More... | |
void | addObserver (ObserverPtr observer) |
Adds a new observer to the list of observers. More... | |
void | removeObserver (ObserverPtr observer) |
Removes the selected observer from the list of observers. More... | |
void | removeObservers () |
Removes all observers. More... | |
void | notifyObservers (ShPtr< Value > arg=nullptr) |
Notifies all observers by calling Observer::update() on them. More... | |
Static Public Member Functions | |
static ShPtr< GlobalVarDef > | create (ShPtr< Variable > var, ShPtr< Expression > init=nullptr) |
Creates a new definition of a global variable. More... | |
Private Member Functions | |
GlobalVarDef (ShPtr< Variable > var, ShPtr< Expression > init=nullptr) | |
Constructs a new definition of a global variable. More... | |
Private Attributes | |
ShPtr< Variable > | var |
Global variable. More... | |
ShPtr< Expression > | init |
Initializer of the variable. May be empty. More... | |
Additional Inherited Members | |
![]() | |
using | ConcreteObserver = Observer< Value, Value > |
A concrete observer. More... | |
using | ObserverPtr = WkPtr< ConcreteObserver > |
A pointer to an observer. More... | |
![]() | |
using | ObserverContainer = std::vector< ObserverPtr > |
A container to store observers. More... | |
using | observer_iterator = typename ObserverContainer::const_iterator |
![]() | |
Value ()=default | |
![]() | |
Visitable ()=default | |
~Visitable ()=default | |
![]() | |
Metadatable () | |
Constructs a new metadatable object. More... | |
![]() | |
observer_iterator | observer_begin () const |
Returns a constant iterator to the first observer. More... | |
observer_iterator | observer_end () const |
Returns a constant iterator past the last observer. More... | |
A definition of a global variable.
Use create() to create instances. Instances of this class have reference object semantics. This class is not meant to be subclassed.
|
explicitprivate |
Constructs a new definition of a global variable.
See create() for more information.
|
overridevirtual |
Visitor pattern implementation.
Subclasses should implement this method as:
where T
is the name of the subclass, and shared_from_this() and ucast<>
are from Decompiler/Support/SmartPtr.h.
Implements retdec::llvmir2hll::Visitable.
Returns a clone of the value.
A clone is (in most cases) an exact copy of the value. This member function provides the copy mechanism for reference objects.
The following parts of values are not cloned:
The following subclasses of Value are not cloned, i.e. they are returned without any copying:
Statements in compound statements (i.e. statements where isCompound()
returns true
) are cloned without their successors; therefore, e.g., just the first statement of every if's clause is cloned.
Implements retdec::llvmir2hll::Value.
|
static |
Creates a new definition of a global variable.
[in] | var | Global variable to be defined. |
[in] | init | Initializer of var. |
bool retdec::llvmir2hll::GlobalVarDef::definesExternalVar | ( | ) | const |
Checks if it defines an external global variable.
true
if it defines an external global variable, false
otherwise. Address retdec::llvmir2hll::GlobalVarDef::getAddress | ( | ) | const |
ShPtr< Expression > retdec::llvmir2hll::GlobalVarDef::getInitializer | ( | ) | const |
Returns the variable initializer.
If there is no initializer, it returns the null pointer.
bool retdec::llvmir2hll::GlobalVarDef::hasInitializer | ( | ) | const |
Returns true
if the global variable has an initializer, false
otherwise.
Returns true
if this value is equal to otherValue, false
otherwise.
This member function brings the support of value object semantics into reference objects, namely equality based not only on identity.
This function doesn't consider observers, metadata, etc.
Implements retdec::llvmir2hll::Value.
void retdec::llvmir2hll::GlobalVarDef::removeInitializer | ( | ) |
Removes the initializer.
void retdec::llvmir2hll::GlobalVarDef::replace | ( | ShPtr< Expression > | oldExpr, |
ShPtr< Expression > | newExpr | ||
) |
void retdec::llvmir2hll::GlobalVarDef::setInitializer | ( | ShPtr< Expression > | newInit | ) |
Sets a new initializer.
Sets a new variable.
|
overridevirtual |
Updates the definition according to the changes of subject.
[in] | subject | Observable object. |
[in] | arg | Optional argument. |
It replaces subject with
This function does nothing when:
Reimplemented from retdec::llvmir2hll::Observer< Value >.
|
private |
Initializer of the variable. May be empty.