Package ghidra.program.model.listing

Interface Data

All Superinterfaces:
CodeUnit, MemBuffer, PropertySet, Settings
All Known Implementing Classes:
DataStub, PseudoData
public interface Data extends CodeUnit, Settings
Interface for interacting with data at an address in a program.

  • Method Details

    • getValue

      Object getValue()
      Returns the value of the data item. The value may be an address, a scalar, register or null if no value.
      Returns:
      the value

    • getValueClass

      Class<?> getValueClass()
      Get the class used to express the value of this data.

      NOTE: This determination is made based upon data type and settings only and does not examine memory bytes which are used to construct the data value object.

      Returns:
      value class or null if a consistent class is not utilized.

    • hasStringValue

      boolean hasStringValue()
      Returns true if this data corresponds to string data. This is determined by the corresponding data type producing a String value.
      Returns:
      true if this data returns a String value and can be treated as string data.

    • isConstant

      boolean isConstant()
      Determine if this data has explicitly been marked as constant. NOTE: This is based upon explicit Data and DataType mutability settings and does not reflect independent memory block or processor specification settings.
      Returns:
      true if data is constant, else false.

    • isWritable

      boolean isWritable()
      Determine if this data has explicitly been marked as writable. NOTE: This is based upon explicit Data and DataType mutability settings and does not reflect independent memory block or processor specification settings.
      Returns:
      true if data is writable, else false.

    • isVolatile

      boolean isVolatile()
      Determine if this data has explicitly been marked as volatile. NOTE: This is based upon explicit Data and DataType mutability settings and does not reflect independent memory block or processor specification settings.
      Returns:
      true if data is volatile, else false.

    • isDefined

      boolean isDefined()
      Returns true if the data type is defined. Any address that has not been defined to be code or data is treated as undefined data.
      Returns:
      true if is defined

    • getDataType

      DataType getDataType()
      Get the Data type for the data.
      Returns:
      the data type

    • getBaseDataType

      DataType getBaseDataType()
      If the dataType is a typeDef, then the typeDef's base type is returned, otherwise, the datatType is returned.
      Returns:
      the data type

    • getValueReferences

      Reference[] getValueReferences()
      Get the references for the value.
      Returns:
      the references

    • addValueReference

      void addValueReference(Address refAddr, RefType type)
      Add a memory reference to the value.
      Parameters:
      refAddr - address referenced.
      type - the type of reference to be added.

    • removeValueReference

      void removeValueReference(Address refAddr)
      Remove a reference to the value.
      Parameters:
      refAddr - address of reference to be removed.

    • getFieldName

      String getFieldName()
      Get the field name of this data item if it is "inside" another data item, otherwise return null.
      Returns:
      the name of this data as known from some parent data item or null if this data item is not a component of another data item.

    • getPathName

      String getPathName()
      Returns the full path name (dot notation) for this field. This includes the symbol name at this address.
      Returns:
      the path name

    • getComponentPathName

      String getComponentPathName()
      Returns the component path name (dot notation) for this field
      Returns:
      the component path name

    • isPointer

      boolean isPointer()
      Returns true if this is a pointer, implies getValue() will will return an Object that is an Address.
      Returns:
      true if a pointer

    • isUnion

      boolean isUnion()
      Returns true if this data item is a Union.
      Returns:
      true if a union

    • isStructure

      boolean isStructure()
      Returns true if this data item is a Structure.
      Returns:
      true if a structure

    • isArray

      boolean isArray()
      Returns true if this data item is an Array of DataTypes
      Returns:
      true if an array

    • isDynamic

      boolean isDynamic()
      Returns true if this data item is a dynamic DataType.
      Returns:
      true if is dynamic

    • getParent

      Data getParent()
      Get the immediate parent data item of this data item or null if this data item is not contained in another data item.
      Returns:
      the data

    • getRoot

      Data getRoot()
      Get the highest level Data item in a hierarchy of structures containing this component.
      Returns:
      the data

    • getRootOffset

      int getRootOffset()
      Get the offset of this Data item from the start of the root data item of some hierarchy of structures.
      Returns:
      the offset

    • getParentOffset

      int getParentOffset()
      Get the offset of this Data item from the start of its immediate parent.
      Returns:
      the offset

    • getComponent

      Data getComponent(int index)
      Returns the immediate n'th component or null if none exists.
      Parameters:
      index - the index of the component to get.
      Returns:
      the component

    • getComponent

      Data getComponent(int[] componentPath)
      Get a data item given the index path. Each integer in the array represents an index into the data item at that level.
      Parameters:
      componentPath - the array of indexes to use to find the requested data item.
      Returns:
      the component

    • getComponentPath

      int[] getComponentPath()
      Get the component path if this is a component. The component path is an array of integers that represent each index in the tree of data items. Top level data items have an empty array for their component path.
      Returns:
      the path

    • getNumComponents

      int getNumComponents()
      Return the number of components that make up this data item. if this is an Array, return the number of elements in the array.
      Returns:
      the number of components

    • getComponentAt

      @Deprecated(forRemoval=true, since="10.1") Data getComponentAt(int offset)
      Deprecated, for removal: This API element is subject to removal in a future version.
      method name has been changed to better reflect behavior. The method getComponentContaining(int) should be used instead.
      Return the first immediate child component that contains the byte at the given offset. It is important to note that with certain datatypes there may be more than one component containing the specified offset (see getComponentsContaining(int)).
      Parameters:
      offset - the amount to add to this data items address to get the address of the requested data item.
      Returns:
      first data component containing offset or null

    • getComponentContaining

      Data getComponentContaining(int offset)
      Return the first immediate child component that contains the byte at the given offset. It is important to note that with certain datatypes there may be more than one component containing the specified offset (see getComponentsContaining(int)).
      Parameters:
      offset - the amount to add to this data items address to get the
      Returns:
      first data component containing offset or null address of the requested data item.

    • getComponentsContaining

      List<Data> getComponentsContaining(int offset)
      Returns a list of all the immediate child components that contain the byte at the given offset.

      For a union, this will return all the components (if the offset is 0). The presence of bit-fields or zero-length components may cause multiple components to be returned.

      Parameters:
      offset - the amount to add to this data items address to get the address of the requested data item.
      Returns:
      a list of all the immediate child components that contain the byte at the given offset or null if offset is out of bounds.

    • getPrimitiveAt

      Data getPrimitiveAt(int offset)
      Returns the primitive component containing this offset (i.e., one that does not have sub-components). This is useful for data items which are made up of multiple layers of other data items. This method immediately goes to the lowest level data item. If the minimum offset of a component is specified, the only first component containing the offset will be considered (e.g., 0-element array).
      Parameters:
      offset - the offset
      Returns:
      primitive component containing this offset

    • getComponentIndex

      int getComponentIndex()
      Get the index of this component in its parent
      Returns:
      -1 if this data item is not a component of another data item.

    • getComponentLevel

      int getComponentLevel()
      Get this data's component level in its hierarchy of components.
      Returns:
      the level of this data item with 0 being the level of top data items.

    • getDefaultValueRepresentation

      String getDefaultValueRepresentation()
      Returns a string that represents the data value without markup.
      Returns:
      the string

    • getDefaultLabelPrefix

      String getDefaultLabelPrefix(DataTypeDisplayOptions options)
      Returns the appropriate string to use as the default label prefix or null if it has no preferred default label prefix;
      Parameters:
      options - the options
      Returns:
      the prefix