org.matheclipse.core.eval

Class TraceStack

java.lang.Object

org.matheclipse.core.interfaces.AbstractEvalStepListener

org.matheclipse.core.eval.TraceStack

All Implemented Interfaces:

IEvalStepListener

public final class TraceStack
extends AbstractEvalStepListener

Field Summary

Fields inherited from class org.matheclipse.core.interfaces.AbstractEvalStepListener

fHint

Constructor Summary

Constructors

Constructor and Description
TraceStack(java.util.function.Predicate<IExpr> matcher, IAST list)

Method Summary

Modifier and Type	Method and Description
void	add(IExpr expr) Add the expression to the internal trace list, if the trace matcher returns true.
void	add(IExpr inputExpr, IExpr resultExpr, int recursionDepth, long iterationCounter, java.lang.String hint) Add a new step in which the inputExpr was evaluated to the new resultExpr.
void	addIfEmpty(IExpr expr) Add the expression to the internal trace list, if the trace matcher returns true and the trace lit is empty.
IAST	getList()
void	popList()
void	pushList()
void	setUp(IExpr inputExpr, int recursionDepth) Sets up the next evaluation step.
void	tearDown(int recursionDepth) Tear down this evaluation step (called finally at the evaluation loop).

Methods inherited from class org.matheclipse.core.interfaces.AbstractEvalStepListener

getHint, setHint

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

TraceStack

public TraceStack(java.util.function.Predicate<IExpr> matcher,
                  IAST list)

Method Detail

pushList

public void pushList()

popList

public void popList()

getList

public IAST getList()

add

public void add(IExpr expr)

Add the expression to the internal trace list, if the trace matcher returns true.

Parameters:

expr - an expression

addIfEmpty

public void addIfEmpty(IExpr expr)

Add the expression to the internal trace list, if the trace matcher returns true and the trace lit is empty.

Parameters:

expr - an expression

setUp

public void setUp(IExpr inputExpr,
                  int recursionDepth)

Description copied from class: AbstractEvalStepListener

Sets up the next evaluation step.

Specified by:

setUp in interface IEvalStepListener

Overrides:

setUp in class AbstractEvalStepListener

Parameters:

inputExpr - the inpput expression which should currently be evaluated

recursionDepth - the current recursion depth of this evaluation step

tearDown

public void tearDown(int recursionDepth)

Description copied from class: AbstractEvalStepListener

Tear down this evaluation step (called finally at the evaluation loop).

Specified by:

tearDown in interface IEvalStepListener

Overrides:

tearDown in class AbstractEvalStepListener

Parameters:

recursionDepth - the current recursion depth of this evaluation step

add

public void add(IExpr inputExpr,
                IExpr resultExpr,
                int recursionDepth,
                long iterationCounter,
                java.lang.String hint)

Description copied from class: AbstractEvalStepListener

Add a new step in which the inputExpr was evaluated to the new resultExpr.

Specified by:

add in interface IEvalStepListener

Specified by:

add in class AbstractEvalStepListener

Parameters:

inputExpr - the input expression

resultExpr - the evaluated result expression

recursionDepth - the current recursion depth

iterationCounter - the current iteration counter

hint - this hint will be used in the listener, if no other hint was set with the setHint() method.

See Also:

IEvalStepListener.setHint(String)