Package org.qdl_lang.expressions

Class UserFunction

java.lang.Object

org.qdl_lang.expressions.ExpressionImpl

org.qdl_lang.expressions.Polyad

org.qdl_lang.expressions.UserFunction

All Implemented Interfaces:

Serializable, ExpressionNode, ExpressionInterface, HasResultInterface, Statement

public class UserFunction
extends Polyad

MOdels a user-defined function in QDL. This is a specialized type of Polyad.

See Also:

Serialized Form

Field Summary

Fields inherited from class org.qdl_lang.expressions.ExpressionImpl

arguments, result, valence

Fields inherited from interface org.qdl_lang.statements.ExpressionInterface

ALL_INDICES_NODE, ALT_IF_NODE, ASSIGNMENT_NODE, AXIS_RESTRICTION_NODE, CLOSED_SLICE_NODE, COMPARISON_DYAD_NODE, CONSTANT_NODE, DYAD_NODE, DYADIC_FUNCTION_REFERENCE_NODE, EXPRESSION_STEM_NODE, EXPRESSION_STEM2_NODE, FUNCTION_REFERENCE_NODE, LAMBDA_DEFINITION_NODE, LIST_NODE, MODULE_NODE, MONAD_NODE, NILAD_NODE, OPEN_SLICE_NODE, PARENTHESIZED_NODE, PARSE_EXPRESSION_BLOCK_NODE, PARSE_STATEMENT_BLOCK_NODE, POLYAD_NODE, QDL_NULL_NODE, SELECT_NODE, SET_NODE, STEM_ENTRY_NODE, STEM_EXTRACTION_NODE, STEM_NODE, UNKNOWN_NODE, VARIABLE_NODE

Constructor Summary

Constructors

Constructor	Description
UserFunction()
UserFunction(int operatorType)
UserFunction(String name)
UserFunction(TokenPosition tokenPosition)

Method Summary

Modifier and Type	Method	Description
int	arity()
FunctionRecordInterface	getFunctionRecord()
boolean	hasFR_WithState()	Check that it has a function record before calling this.
boolean	hasFunctionRecord()
void	setFunctionRecord(FunctionRecordInterface functionRecord)

Methods inherited from class org.qdl_lang.expressions.Polyad

evaluate, getAllowedArgCounts, getName, getNodeType, isBuiltIn, makeCopy, setAllowedArgCounts, setBuiltIn, setName, toString

Methods inherited from class org.qdl_lang.expressions.ExpressionImpl

addArgument, evalArg, evalLastArg, evaluatedArgs, getAlias, getArgAt, getArgCount, getArguments, getEvaluatedArgs, getLastArg, getOperatorType, getResult, getResultType, getSourceCode, getTokenPosition, hasAlias, hasEvaluatedArgs, hasTokenPosition, isEvaluated, isSizeQuery, setAlias, setArguments, setEvaluated, setEvaluatedArgs, setOperatorType, setResult, setResult, setSizeQuery, setSourceCode, setTokenPosition

Methods inherited from class java.lang.Object

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

Constructor Detail

UserFunction

public UserFunction()

UserFunction

public UserFunction(TokenPosition tokenPosition)

UserFunction

public UserFunction(String name)

UserFunction

public UserFunction(int operatorType)

Method Detail

getFunctionRecord

public FunctionRecordInterface getFunctionRecord()

setFunctionRecord

public void setFunctionRecord(FunctionRecordInterface functionRecord)

hasFR_WithState

public boolean hasFR_WithState()

Check that it has a function record before calling this.

Returns:

hasFunctionRecord

public boolean hasFunctionRecord()

arity

public int arity()