Class AbstractFloatDataType
- java.lang.Object
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- ghidra.program.model.data.AbstractDataType
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- ghidra.program.model.data.DataTypeImpl
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- ghidra.program.model.data.BuiltIn
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- ghidra.program.model.data.AbstractFloatDataType
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- All Implemented Interfaces:
BuiltInDataType
,DataType
,ExtensionPoint
- Direct Known Subclasses:
DoubleDataType
,Float10DataType
,Float16DataType
,Float2DataType
,Float4DataType
,Float8DataType
,FloatDataType
,LongDoubleDataType
public abstract class AbstractFloatDataType extends BuiltIn
Provides a definition of a Float within a program.
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Field Summary
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Fields inherited from class ghidra.program.model.data.DataTypeImpl
defaultSettings
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Fields inherited from class ghidra.program.model.data.AbstractDataType
categoryPath, dataMgr, name
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Fields inherited from interface ghidra.program.model.data.DataType
CONFLICT_SUFFIX, DEFAULT, NO_LAST_CHANGE_TIME, NO_SOURCE_SYNC_TIME, VOID
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Constructor Summary
Constructors Constructor Description AbstractFloatDataType(java.lang.String name, DataTypeManager dtm)
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Method Summary
All Methods Static Methods Instance Methods Concrete Methods Modifier and Type Method Description byte[]
encodeRepresentation(java.lang.String repr, MemBuffer buf, Settings settings, int length)
Encode bytes according to the display format for this type.byte[]
encodeValue(java.lang.Object value, MemBuffer buf, Settings settings, int length)
Encode bytes from an Object appropriate for this DataType.protected SettingsDefinition[]
getBuiltInSettingsDefinitions()
Gets a list of all the settingsDefinitions used by this datatype.java.lang.String
getCTypeDeclaration(DataOrganization dataOrganization)
Returns null for FactoryDataType (which should never be used) and Dynamic types which should generally be replaced by a primitive array (e.g., char[5]) or, a primitive pointer (e.g., char *).java.lang.String
getDefaultLabelPrefix()
Returns the appropriate string to use as the default label prefix in the absence of any data.java.lang.String
getDescription()
Get a String briefly describing this DataType.static DataType
getFloatDataType(int size, DataTypeManager dtm)
Get a Float data-type instance of the requested sizestatic AbstractFloatDataType[]
getFloatDataTypes(DataTypeManager dtm)
Returns all built-in float data-typesjava.lang.String
getMnemonic(Settings settings)
Get the mnemonic for this DataType.java.lang.String
getRepresentation(MemBuffer buf, Settings settings, int length)
Get bytes from memory in a printable format for this type.java.lang.Object
getValue(MemBuffer buf, Settings settings, int length)
Get the data in the form of the appropriate Object for this DataType.boolean
isEncodable()
Check if this type supports encoding (patching)-
Methods inherited from class ghidra.program.model.data.BuiltIn
addParent, copy, dataTypeDeleted, dataTypeNameChanged, dataTypeReplaced, dataTypeSizeChanged, dependsOn, getCTypeDeclaration, getCTypeDeclaration, getCTypeDeclaration, getDecompilerDisplayName, getLastChangeTime, getSettingsDefinitions, getUniversalID, isEquivalent, removeParent, setCategoryPath, setName, setNameAndCategory
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Methods inherited from class ghidra.program.model.data.DataTypeImpl
equals, getAlignment, getDefaultSettings, getLastChangeTimeInSourceArchive, getParents, getPathName, getSourceArchive, getValueClass, hashCode, notifyAlignmentChanged, notifyDeleted, notifyNameChanged, notifyParents, notifyReplaced, notifySizeChanged, replaceWith, setDefaultSettings, setDescription, setLastChangeTime, setLastChangeTimeInSourceArchive, setSourceArchive
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Methods inherited from class ghidra.program.model.data.AbstractDataType
dataTypeAlignmentChanged, getCategoryPath, getDataOrganization, getDataTypeManager, getDataTypePath, getDefaultAbbreviatedLabelPrefix, getDefaultLabelPrefix, getDefaultOffcutLabelPrefix, getDisplayName, getDocs, getName, hasLanguageDependantLength, isDeleted, isNotYetDefined, isZeroLength, toString
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Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, wait, wait, wait
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Methods inherited from interface ghidra.program.model.data.DataType
clone, dataTypeAlignmentChanged, getAlignment, getCategoryPath, getDataOrganization, getDataTypeManager, getDataTypePath, getDefaultAbbreviatedLabelPrefix, getDefaultLabelPrefix, getDefaultOffcutLabelPrefix, getDefaultSettings, getDisplayName, getDocs, getLastChangeTimeInSourceArchive, getLength, getName, getParents, getPathName, getSourceArchive, getValueClass, hasLanguageDependantLength, isDeleted, isNotYetDefined, isZeroLength, replaceWith, setDefaultSettings, setDescription, setLastChangeTime, setLastChangeTimeInSourceArchive, setSourceArchive
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Constructor Detail
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AbstractFloatDataType
public AbstractFloatDataType(java.lang.String name, DataTypeManager dtm)
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Method Detail
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getMnemonic
public java.lang.String getMnemonic(Settings settings)
Description copied from interface:DataType
Get the mnemonic for this DataType.- Specified by:
getMnemonic
in interfaceDataType
- Overrides:
getMnemonic
in classAbstractDataType
- Parameters:
settings
- settings which may influence the result or null- Returns:
- the mnemonic for this DataType.
- See Also:
DataType.getMnemonic(Settings)
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getDescription
public java.lang.String getDescription()
Description copied from interface:DataType
Get a String briefly describing this DataType.- Returns:
- a one-liner describing this DataType.
- See Also:
DataType.getDescription()
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getValue
public java.lang.Object getValue(MemBuffer buf, Settings settings, int length)
Description copied from interface:DataType
Get the data in the form of the appropriate Object for this DataType.For instance if the datatype is an AddressDT, return an Address object. a Byte, return a Scalar* (maybe this should be a Byte) a Float, return a Float
- Parameters:
buf
- the data buffer.settings
- the settings to use.length
- the number of bytes to get the value from.- Returns:
- the data Object.
- See Also:
DataType.getValue(ghidra.program.model.mem.MemBuffer, ghidra.docking.settings.Settings, int)
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isEncodable
public boolean isEncodable()
Description copied from interface:DataType
Check if this type supports encoding (patching)If unsupported,
DataType.encodeValue(Object, MemBuffer, Settings, int)
andDataType.encodeRepresentation(String, MemBuffer, Settings, int)
will always throw an exception. Actions which rely on eitherencode
method should not be displayed if the applicable datatype is not encodable.- Specified by:
isEncodable
in interfaceDataType
- Overrides:
isEncodable
in classAbstractDataType
- Returns:
- true if encoding is supported
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encodeValue
public byte[] encodeValue(java.lang.Object value, MemBuffer buf, Settings settings, int length) throws DataTypeEncodeException
Description copied from interface:DataType
Encode bytes from an Object appropriate for this DataType.Converts the given object to the byte encoding and returns it. When appropriate, this should seek the nearest encoding to the specified value, since the object may come from a user script. For example, a floating-point value may be rounded. Invalid values should be rejected with a
DataTypeEncodeException
.- Specified by:
encodeValue
in interfaceDataType
- Overrides:
encodeValue
in classAbstractDataType
- Parameters:
value
- the desired value.buf
- a buffer representing the eventual destination of the bytes.settings
- the settings to use.length
- the expected length of the result, usually the length of the data unit, or -1 to let the type choose the length. It may be ignored, e.g., for fixed-length types.- Returns:
- the encoded value.
- Throws:
DataTypeEncodeException
- if the value cannot be encoded for any reason, e.g., incorrect type, not enough space, buffer overflow, unsupported (seeDataType.isEncodable()
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getRepresentation
public java.lang.String getRepresentation(MemBuffer buf, Settings settings, int length)
Description copied from interface:DataType
Get bytes from memory in a printable format for this type.- Parameters:
buf
- the data.settings
- the settings to use for the representation.length
- the number of bytes to represent.- Returns:
- the representation of the data in this format, never null.
- See Also:
DataType.getRepresentation(MemBuffer, Settings, int)
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encodeRepresentation
public byte[] encodeRepresentation(java.lang.String repr, MemBuffer buf, Settings settings, int length) throws DataTypeEncodeException
Description copied from interface:DataType
Encode bytes according to the display format for this type.Converts the given representation to the byte encoding and returns it. When appropriate, this should seek the nearest encoding to the specified value, since the representation is likely coming from user input. For example, a floating-point value may be rounded. Invalid representations should be rejected with a
DataTypeEncodeException
.- Specified by:
encodeRepresentation
in interfaceDataType
- Overrides:
encodeRepresentation
in classAbstractDataType
- Parameters:
repr
- the representation of the desired value, as inDataType.getRepresentation(MemBuffer, Settings, int)
. The supported formats depend on the specific datatype and its settings.buf
- a buffer representing the eventual destination of the bytes.settings
- the settings to use for the representation.length
- the expected length of the result, usually the length of the data unit, or -1 to let the type choose the length. It may be ignored, e.g., for fixed-length types.- Returns:
- the encoded value.
- Throws:
DataTypeEncodeException
- if the value cannot be encoded for any reason, e.g., incorrect format, not enough space, buffer overflow, unsupported (seeDataType.isEncodable()
).
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getBuiltInSettingsDefinitions
protected SettingsDefinition[] getBuiltInSettingsDefinitions()
Description copied from class:BuiltIn
Gets a list of all the settingsDefinitions used by this datatype.- Overrides:
getBuiltInSettingsDefinitions
in classBuiltIn
- Returns:
- a list of the settingsDefinitions used by this datatype.
- See Also:
BuiltIn.getBuiltInSettingsDefinitions()
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getDefaultLabelPrefix
public java.lang.String getDefaultLabelPrefix()
Description copied from interface:DataType
Returns the appropriate string to use as the default label prefix in the absence of any data.- Specified by:
getDefaultLabelPrefix
in interfaceDataType
- Overrides:
getDefaultLabelPrefix
in classAbstractDataType
- Returns:
- the default label prefix or null if none specified.
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getCTypeDeclaration
public java.lang.String getCTypeDeclaration(DataOrganization dataOrganization)
Description copied from class:BuiltIn
Returns null for FactoryDataType (which should never be used) and Dynamic types which should generally be replaced by a primitive array (e.g., char[5]) or, a primitive pointer (e.g., char *). For other types an appropriately sized unsigned integer typedef is returned.- Specified by:
getCTypeDeclaration
in interfaceBuiltInDataType
- Overrides:
getCTypeDeclaration
in classBuiltIn
- Parameters:
dataOrganization
- or null for default- Returns:
- definition C-statement (e.g., #define or typedef) or null if type name is a standard C-primitive name or if type is FactoryDataType or Dynamic.
- See Also:
BuiltInDataType.getCTypeDeclaration(ghidra.program.model.data.DataOrganization)
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getFloatDataType
public static DataType getFloatDataType(int size, DataTypeManager dtm)
Get a Float data-type instance of the requested size- Parameters:
size
- data type size, unsupported sizes will cause an undefined type to be returned.dtm
- optional program data-type manager, if specified a generic data-type will be returned if possible (i.e., float, double, long double).- Returns:
- float data type of specified size
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getFloatDataTypes
public static AbstractFloatDataType[] getFloatDataTypes(DataTypeManager dtm)
Returns all built-in float data-types- Parameters:
dtm
- optional program data-type manager, if specified generic data-types will be returned in place of fixed-sized data-types.
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