ghidra::ResolvedUnion Class Reference

A data-type resolved from an associated TypeUnion or TypeStruct. More...

#include <unionresolve.hh>

Collaboration diagram for ghidra::ResolvedUnion:

Public Member Functions
	ResolvedUnion (Datatype *parent)
	Construct a data-type that resolves to itself.
	ResolvedUnion (Datatype *parent, int4 fldNum, TypeFactory &typegrp)
	Construct a reference to a field.
Datatype *	getDatatype (void) const
	Get the resolved data-type.
Datatype *	getBase (void) const
	Get the union or structure being referenced.
int4	getFieldNum (void) const
	Get the index of the resolved field or -1.
bool	isLocked (void) const
	Is this locked against overrides.
void	setLock (bool val)
	Set whether this resolution is locked against overrides.

Private Attributes
Datatype *	resolve
	The resolved data-type.
Datatype *	baseType
	Union or Structure being resolved.
int4	fieldNum
	Index of field referenced by resolve.
bool	lock
	If true, resolution cannot be overridden.

Friends
class	ScoreUnionFields

Detailed Description

A data-type resolved from an associated TypeUnion or TypeStruct.

A parent refers to either: 1) A union 2) A structure that is an effective union (1 field filling the entire structure) OR 3) A pointer to a union/structure

This object represents a data-type that is resolved via analysis from the parent data-type. The resolved data-type can be either: 1) A specific field of the parent (if the parent is not a pointer) 2) A pointer to a specific field of the underlying union/structure (if the parent is a pointer) 3) The parent data-type itself (either a pointer or not) The fieldNum (if non-negative) selects a particular field of the underlying union/structure. If the parent is a pointer, the resolution is a pointer to the field. If the parent is not a pointer, the resolution is the field itself. A fieldNum of -1 indicates that the parent data-type itself is the resolution.

Constructor & Destructor Documentation

ResolvedUnion() [1/2]

ghidra::ResolvedUnion::ResolvedUnion

(

Datatype *

parent

)

Construct a data-type that resolves to itself.

The original parent must either be a union, a partial union, a structure with a single field, an array with a single element, or a pointer to one of these data-types. The object is set up initially to resolve to the parent.

Parameters

parent

is the original parent data-type

References baseType, fieldNum, ghidra::Datatype::getMetatype(), lock, resolve, and ghidra::TYPE_PTR.

ResolvedUnion() [2/2]

ghidra::ResolvedUnion::ResolvedUnion	(	Datatype *	parent,
		int4	fldNum,
		TypeFactory &	typegrp
	)

Construct a reference to a field.

The original parent must be a union or structure.

Parameters

parent	is the original parent
fldNum	is the index of the particular field to resolve to (or -1 to resolve to parent)
typegrp	is a TypeFactory used to construct the resolved data-type of the field

References baseType, fieldNum, ghidra::Datatype::getDepend(), ghidra::Datatype::getMetatype(), ghidra::TypePointer::getPtrTo(), ghidra::Datatype::getSize(), ghidra::TypeFactory::getTypePointer(), ghidra::TypePointer::getWordSize(), lock, resolve, ghidra::TYPE_PARTIALUNION, and ghidra::TYPE_PTR.

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

• /builds/appsec/reveng-binrw/ghidraplusplus/src/dec/unionresolve.hh
• /builds/appsec/reveng-binrw/ghidraplusplus/src/dec/unionresolve.cc