Uses of Class
org.qdl_lang.expressions.ExpressionImpl

Packages that use ExpressionImpl

Package	Description
org.qdl_lang.evaluate	Evaluators evaluate the built-in functions for QDL as well as perform the usual algebraic operations.
org.qdl_lang.expressions	Expressions are objects that take zero or more arguments and return a result.
org.qdl_lang.functions	Function handling and processing.
org.qdl_lang.variables	Variables in QDL and classes that support them.

Uses of ExpressionImpl in org.qdl_lang.evaluate

Methods in org.qdl_lang.evaluate that return ExpressionImpl

Modifier and Type	Method	Description
static ExpressionImpl	AbstractEvaluator.getOperator(State state, FunctionReferenceNodeInterface frNode, int nAry)	get a polyad or dyad (for the operator) from the FunctionReferenceNode.

Methods in org.qdl_lang.evaluate with parameters of type ExpressionImpl

Modifier and Type	Method	Description
protected void	AbstractEvaluator.finishExpr(ExpressionImpl node, AbstractEvaluator.fpResult r)
protected Object	StemEvaluator.forEachEval(ExpressionImpl f, State state, List args)
protected void	StemEvaluator.forEachRecursion(QDLStem output, ExpressionImpl f, State state, Object[] args, IndexList indexList, ArrayList values, int currentIndex)
protected void	AbstractEvaluator.process1(ExpressionImpl polyad, AbstractEvaluator.fPointer pointer, String name, State state)	Main workhorse for monadic system functions.
protected void	AbstractEvaluator.process2(ExpressionImpl polyad, AbstractEvaluator.fPointer pointer, String name, State state)	Main workhorse method of evaluating a QDL dyadic system function.
protected void	AbstractEvaluator.process2(ExpressionImpl polyad, AbstractEvaluator.fPointer pointer, String name, State state, boolean optionalArgs)	Note
protected void	AbstractEvaluator.process3(ExpressionImpl polyad, AbstractEvaluator.fPointer pointer, String name, State state, boolean optionalArguments)	Main workhorse for evaluating QDL system valence 3 functions.
protected void	AbstractEvaluator.processSet2(QDLSet outSet, QDLSet inSet, Object scalar, boolean scalarRHS, AbstractEvaluator.fPointer pointer, ExpressionImpl polyad, boolean optionalArgs)	Apply a scalar to every element in a set.
protected Object	AbstractEvaluator.processSet2(QDLSet leftSet, QDLSet rightSet, AbstractEvaluator.fPointer pointer, ExpressionImpl polyad, boolean optionalArgs)	Operations on two sets can return either a set (e.g.
protected void	AbstractEvaluator.processStem2(QDLStem outStem, QDLStem stem1, QDLStem stem2, AbstractEvaluator.fPointer pointer, ExpressionImpl polyad, boolean optionalArgs)
protected void	AbstractEvaluator.processStem3(QDLStem outStem, QDLStem stem1, QDLStem stem2, QDLStem stem3, AbstractEvaluator.fPointer pointer, ExpressionImpl polyad, boolean optionalArgs)

Constructors in org.qdl_lang.evaluate with parameters of type ExpressionImpl

Constructor	Description
AxisExpand(ExpressionImpl operator, State state)
AxisReduce(ExpressionImpl operator, State state)

Uses of ExpressionImpl in org.qdl_lang.expressions

Subclasses of ExpressionImpl in org.qdl_lang.expressions

Modifier and Type	Class	Description
class	AllIndices	Marker class to show all the indices are to be used.
class	AltIfExpressionNode	Created by Jeff Gaynor on 5/27/21 at 5:13 PM
class	ANode2	Very much improved way to handle assignments.
class	ClosedSliceNode	Created by Jeff Gaynor on 6/1/21 at 9:25 AM
class	ComparisonDyad	Dyad that compares the arguments, such as with comparisons, regex matching and types of equality.
class	ConstantNode	Created by Jeff Gaynor on 1/13/20 at 4:08 PM
class	Dyad	Created by Jeff Gaynor on 1/13/20 at 3:47 PM
class	ESN2	After a parser change to treat the dot as an operator, this was introduced.
class	ModuleExpression	Models a single module expression of the form A#expression where A is the alias giving the instance of the current module and expression is a general expression to be evaluated against the state of the module.
class	Monad	A post or prefix operator, such a logical not or ++.
class	Nilad	This would be an operator that takes no arguments.
class	OpenSliceNode	Created by Jeff Gaynor on 6/1/21 at 8:38 AM
class	Polyad	For multiple arguments.
class	SelectExpressionNode	An expression for switches.
class	StemExtractionNode	This will allow for creating a subset (copy of portion) of a stem.
class	VariableNode	Created by Jeff Gaynor on 1/13/20 at 4:28 PM

Uses of ExpressionImpl in org.qdl_lang.functions

Subclasses of ExpressionImpl in org.qdl_lang.functions

Modifier and Type	Class	Description
class	DyadicFunctionReferenceNode	Created by Jeff Gaynor on 6/10/24 at 12:43 PM
class	FunctionReferenceNode	Just a pointer to the collection of functions for a given name.
class	LambdaDefinitionNode	To treat defined lambda expressions they must be edu.uiuc.ncsa.qdl.expressions.ExpressionNodes This wraps a FunctionDefinitionStatement, which cannot be replaced.

Uses of ExpressionImpl in org.qdl_lang.variables

Subclasses of ExpressionImpl in org.qdl_lang.variables

Modifier and Type	Class	Description
class	QDLNull	This represents when the user explicitly sets a variable to null.