Package org.qdl_lang.evaluate

Class FunctionEvaluator

java.lang.Object

org.qdl_lang.evaluate.AbstractEvaluator

org.qdl_lang.evaluate.FunctionEvaluator

All Implemented Interfaces:

Serializable, EvaluatorInterface

public class FunctionEvaluator
extends AbstractEvaluator

Created by Jeff Gaynor
on 1/22/20 at 10:53 AM

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class org.qdl_lang.evaluate.AbstractEvaluator

AbstractEvaluator.CommonKeyIterator, AbstractEvaluator.fPointer, AbstractEvaluator.fpResult

Field Summary

Fields

Modifier and Type	Field	Description
static String	APPLY
static int	APPLY_TYPE
static String	ARG_COUNT
static int	ARG_COUNT_TYPE
static int	BASE_FUNCTION_VALUE
static String	DUMMY_BUILT_IN_FUNCTION_NAME_CAPUT
static String	FUNCTION_NAMESPACE
static String	IS_FUNCTION
static int	IS_FUNCTION_TYPE
static String	NAMES
static int	NAMES_TYPE
static long	serialVersionUID

Fields inherited from class org.qdl_lang.evaluate.AbstractEvaluator

bigArgList, bigArgList0, FILE_OP_AUTO, FILE_OP_BINARY, FILE_OP_INPUT_STREAM, FILE_OP_TEXT_INI, FILE_OP_TEXT_STEM, FILE_OP_TEXT_STRING, FILE_OP_TEXT_WITHOUT_LIST_INI, fNames, MAX_ARG_COUNT

Fields inherited from interface org.qdl_lang.evaluate.EvaluatorInterface

UNKNOWN_VALUE

Constructor Summary

Constructors

Constructor	Description
FunctionEvaluator()

Method Summary

Modifier and Type	Method	Description
protected Boolean	checkIsFunction(String fName, int argCount, State state)
protected String[]	dereferenceFunctionName(String name)
boolean	dispatch(Polyad polyad, State state)	Does the actual evaluation of the Polyad.
protected void	doFunctionEvaluation(Polyad polyad, State state, FR_WithState frs)	Executes a user-defined function, defined in QDL., E.g.
protected void	doIsFunction(Polyad polyad, State state)
protected void	doJavaFunction(Polyad polyad, State state, FR_WithState frs)	Executes a user-defined function, defined in Java as an implementation of QDLFunction.
boolean	evaluate(String alias, Polyad polyad, State state)
boolean	evaluate(Polyad polyad, State state)	Decides if a Polyad is evaluated by this evaluator and if not, returns false, if so, it evaluates it and returns true.
protected void	figureOutEvaluation(Polyad polyad, State state, boolean checkForDuplicates)
String[]	getFunctionNames()
String	getNamespace()
int	getType(String name)
protected boolean	isFDef(Statement statement)
protected boolean	isFunctionReference(String name)
protected ArrayList<XThing>	resolveArguments(FunctionRecordInterface functionRecord, Polyad polyad, State state, State localState)	This will take the function record and polyad and find the arguments that are requested in the function record vs.
protected boolean	tryScript(Polyad polyad, State state)

Methods inherited from class org.qdl_lang.evaluate.AbstractEvaluator

areAllBigDecimals, areAllBoolean, areAllLongs, areAllNumbers, areAllSets, areAllStems, areAllStrings, areAnyBigDecimals, areNoneStems, bdEquals, checkNull, checkNull, convertArgsToStem, finishExpr, getBigArgList, getBigArgList0, getCommonKeys, getFQFunctionNames, getFunctionReferenceNode, getFunctionReferenceNode, getOperator, getOrCreateStem, isBigDecimal, isBoolean, isBuiltInFunction, isFunctionRef, isLong, isNumber, isScalar, isSet, isStem, isStemList, isString, listFunctions, NEWgetOperator, OLDgetOperator, process1, process2, process2, process3, processSet1, processSet2, processSet2, processStem1, processStem2, processStem3, resolveResourceToFile, tempFname, toBD, toConstants, toStem

Methods inherited from class java.lang.Object

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

Field Detail

serialVersionUID

public static long serialVersionUID

FUNCTION_NAMESPACE

public static final String FUNCTION_NAMESPACE

See Also:

Constant Field Values

BASE_FUNCTION_VALUE

public static final int BASE_FUNCTION_VALUE

See Also:

Constant Field Values

IS_FUNCTION

public static final String IS_FUNCTION

See Also:

Constant Field Values

IS_FUNCTION_TYPE

public static final int IS_FUNCTION_TYPE

See Also:

Constant Field Values

APPLY

public static final String APPLY

See Also:

Constant Field Values

APPLY_TYPE

public static final int APPLY_TYPE

See Also:

Constant Field Values

NAMES

public static final String NAMES

See Also:

Constant Field Values

NAMES_TYPE

public static final int NAMES_TYPE

See Also:

Constant Field Values

ARG_COUNT

public static final String ARG_COUNT

See Also:

Constant Field Values

ARG_COUNT_TYPE

public static final int ARG_COUNT_TYPE

See Also:

Constant Field Values

DUMMY_BUILT_IN_FUNCTION_NAME_CAPUT

public static final String DUMMY_BUILT_IN_FUNCTION_NAME_CAPUT

See Also:

Constant Field Values

Constructor Detail

FunctionEvaluator

public FunctionEvaluator()

Method Detail

getNamespace

public String getNamespace()

getType

public int getType(String name)

getFunctionNames

public String[] getFunctionNames()

Specified by:

getFunctionNames in class AbstractEvaluator

evaluate

public boolean evaluate(String alias,
                        Polyad polyad,
                        State state)

Overrides:

evaluate in class AbstractEvaluator

doIsFunction

protected void doIsFunction(Polyad polyad,
                            State state)

checkIsFunction

protected Boolean checkIsFunction(String fName,
                                  int argCount,
                                  State state)

evaluate

public boolean evaluate(Polyad polyad,
                        State state)

Description copied from class: AbstractEvaluator

Decides if a Polyad is evaluated by this evaluator and if not, returns false, if so, it evaluates it and returns true. This function actually just dispatches it to AbstractEvaluator.dispatch(Polyad, State) where the work is done and manages putting better trace information in if there is a failure.

Overrides:

evaluate in class AbstractEvaluator

Returns:

dispatch

public boolean dispatch(Polyad polyad,
                        State state)

Description copied from class: AbstractEvaluator

Does the actual evaluation of the Polyad.

Specified by:

dispatch in class AbstractEvaluator

Returns:

isFDef

protected boolean isFDef(Statement statement)

doJavaFunction

protected void doJavaFunction(Polyad polyad,
                              State state,
                              FR_WithState frs)
                       throws Throwable

Executes a user-defined function, defined in Java as an implementation of QDLFunction.

Parameters:

polyad -

state -

frs -

Throws:

Throwable

tryScript

protected boolean tryScript(Polyad polyad,
                            State state)

figureOutEvaluation

protected void figureOutEvaluation(Polyad polyad,
                                   State state,
                                   boolean checkForDuplicates)
                            throws Throwable

Throws:

Throwable

doFunctionEvaluation

protected void doFunctionEvaluation(Polyad polyad,
                                    State state,
                                    FR_WithState frs)
                             throws Throwable

Executes a user-defined function, defined in QDL., E.g.

     f(x) → x;
 

Parameters:

polyad -

state -

frs -

Throws:

Throwable

resolveArguments

protected ArrayList<XThing> resolveArguments(FunctionRecordInterface functionRecord,
                                             Polyad polyad,
                                             State state,
                                             State localState)

This will take the function record and polyad and find the arguments that are requested in the function record vs. what's in the polyad and stash them in the correct state objects.

Parameters:

functionRecord -

polyad -

state -

localState -

isFunctionReference

protected boolean isFunctionReference(String name)

dereferenceFunctionName

protected String[] dereferenceFunctionName(String name)