TFPExprVariable class
Internally used class for variable expression nodes
Declaration
TFPExprVariable = class(TFPExprIdentifierNode)Inheritance
- TFPExprVariable
- TFPExprIdentifierNode
- TFPExprNode
- TObject
Description
The TFPExprVariable class represents a variable reference in an expression tree.
Variables are identifiers that hold values and can be referenced by name within expressions to retrieve their current values.
This class is used internally by the TFPExpressionParser class to construct an AST (Abstract Syntax Tree). There is normally no need for you to use or instantiate this class directly.
See also
Methods
Check | Validate the variable expression | |
AsString | Get string representation of variable expression |
Inherited
From TFPExprIdentifierNode (4)
From TFPExprNode (6)
CheckNodeType HasAggregate InitAggregate IsAggregate NodeValue UpdateAggregate
From TObject (42)
AfterConstruction BeforeDestruction CheckDisposed ClassInfo ClassName ClassNameIs ClassParent ClassType CleanupInstance Create DefaultHandler DefaultHandlerStr Destroy Dispatch DispatchStr Disposed DisposeOf Equals FieldAddress Free FreeInstance GetDisposed GetHashCode GetInterface GetInterfaceByStr GetInterfaceEntry GetInterfaceEntryByStr GetInterfaceTable GetInterfaceWeak GetLastCastErrorInfo InheritsFrom InitInstance InstanceSize MethodAddress MethodName newinstance QualifiedClassName SafeCallException StringMessageTable SystemHasExtendedRTTI ToString UnitName
An experiment, built from development snapshots. Not the official Free Pascal or Lazarus documentation.