Answered: ow is FunctionDefinitionNode and…

Microsoft Visual C#

7th Edition

ISBN:9781337102100

Author:Joyce, Farrell.

Publisher:Joyce, Farrell.

Chapter10: Introduction To Inheritance

Section: Chapter Questions

Problem 20RQ

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Question

Below is FunctionDefinitionNode and BuiltInFunctionDefinitionNode. Please add the appropriate parameters for BuiltInFunctionDefinitionNode to fix the error attached as an image.

FunctionDefinitionNode.java

import java.util.List;

public class FunctionDefinitionNode extends Node {

private String name;

private List<String> parameters;

public FunctionDefinitionNode(String name, List<String> parameters) {

this.name = name;

this.parameters = parameters;

}

public String getName() {

return name;

}

public List<String> getParameters() {

return parameters;

}

public String ToString() {

return "FunctionNode: [Name, Parameters]";

}

BuiltInFunctionDefinitionNode.java

import java.util.HashMap;

import java.util.function.Function;

public class BuiltInFunctionDefinitionNode extends FunctionDefinitionNode {

private Function<HashMap<String, InterpreterDataType>, String> execute;

private boolean isVariadic;

public BuiltInFunctionDefinitionNode(Function<HashMap<String, InterpreterDataType>, String> execute, boolean isVariadic) {

super(/* pass appropriate parameters to the superclass constructor if it exists */);

this.execute = execute;

this.isVariadic = isVariadic;

}

public String execute(HashMap<String, InterpreterDataType> parameters) {

return this.execute.apply(parameters);

}

9
package mypack;
import java.util.HashMap;
public class Built In FunctionDefinitionNode extends FunctionDefinitionNode
private Function<HashMap<String, InterpreterDataType>, String> execute;
private boolean isVariadic;
}
public Built In FunctionDefinitionNode (Function<HashMap<String, InterpreterDataType>, String> execute, boolea
super (/* pass appropriate parameters to the superclass constructor if it exists */)
this.exec The constructor Function DefinitionNode() is undefined
this.isVa
3 quick fixes available:
}
+ Add arguments to match 'Function Definition Node(String, List<String>)'
public String Change constructor 'Function DefinitionNode(String, List<String>)': Remove parameters 'String, List<String>'
return thCreate constructor 'Function DefinitionNode()'
}

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