FieldAccessExpr does not print list of fields accesses of class

[GholamaliIrani]

I want to print all Fields access into all methods of a class.
I try this:

import com.github.javaparser.StaticJavaParser;
import com.github.javaparser.ast.CompilationUnit;
import com.github.javaparser.ast.body.ClassOrInterfaceDeclaration;
import com.github.javaparser.ast.body.MethodDeclaration;
import com.github.javaparser.ast.expr.FieldAccessExpr;
import java.io.File;
import java.io.IOException;

public class M907 {

    public static void main(String[] args) throws IOException {
        // Replace with the path to your Java file
        File sourceFile = new File("d:/test1/LargeNumber.java");

        CompilationUnit cu = StaticJavaParser.parse(sourceFile);

        cu.findAll(ClassOrInterfaceDeclaration.class).forEach(classDeclaration -> {
            System.out.println("Class: " + classDeclaration.getNameAsString());

            classDeclaration.findAll(MethodDeclaration.class).forEach(methodDeclaration -> {
                System.out.println("  Method: " + methodDeclaration.getNameAsString());

                methodDeclaration.findAll(FieldAccessExpr.class).forEach(fieldAccessExpr -> {
                    System.out.println("    Field Access: " + fieldAccessExpr.getNameAsString());
                });
            });
        });
    }
}

But its not working for my class.

[jlerbsc]

Why does this not work? What does this LargeNumber.java class contain?

[GholamaliIrani]

this is my LargeNumber.java class:

public class LargeNumber {
    private String number;

    public LargeNumber(String number) {
        this.number = number;
    }

    public String getNumber() {
        return number;
    }

    public String add(String operand) {
        StringBuilder result = new StringBuilder();
        int carry = 0;
        int i = number.length() - 1;
        int j = operand.length() - 1;

        while (i >= 0 || j >= 0 || carry != 0) {
            int digit1 = (i >= 0) ? Character.getNumericValue(number.charAt(i)) : 0;
            int digit2 = (j >= 0) ? Character.getNumericValue(operand.charAt(j)) : 0;

            int sum = digit1 + digit2 + carry;
            int newDigit = sum % 10;
            carry = sum / 10;

            result.insert(0, newDigit);

            i--;
            j--;
        }

        return result.toString();
    }

    public String subtract(String operand) {
        StringBuilder result = new StringBuilder();
        int borrow = 0;

        int i = number.length() - 1;
        int j = operand.length() - 1;

        while (i >= 0 || j >= 0) {
            int digit1 = (i >= 0) ? Character.getNumericValue(number.charAt(i)) : 0;
            int digit2 = (j >= 0) ? Character.getNumericValue(operand.charAt(j)) : 0;

            int diff = digit1 - digit2 - borrow;

            if (diff < 0) {
                diff += 10;
                borrow = 1;
            } else {
                borrow = 0;
            }

            result.insert(0, diff);

            i--;
            j--;
        }
		number="12313";
        return result.toString();
    }

    public String multiply(String operand) {
        int n = number.length();
        int m = operand.length();
        int[] result = new int[n + m];

        for (int i = n - 1; i >= 0; i--) {
            int digit1 = Character.getNumericValue(number.charAt(i));
            int carry = 0;

            for (int j = m - 1; j >= 0; j--) {
                int digit2 = Character.getNumericValue(operand.charAt(j));

                int product = digit1 * digit2 + carry + result[i + j + 1];
                int newDigit = product % 10;
                carry = product / 10;

                result[i + j + 1] = newDigit;
            }

            result[i] = carry;
        }

        StringBuilder resultString = new StringBuilder();
        for (int digit : result) {
            resultString.append(digit);
        }

        // حذف ارقام صفر اضافی در ابتدا
        int i = 0;
        while (i < resultString.length() - 1 && resultString.charAt(i) == '0') {
            i++;
        }
        resultString.delete(0, i);
	number++;
        return resultString.toString();
    }

    public String divide(String operand) {
        if (operand.equals("0")) {
            throw new ArithmeticException("تقسیم بر صفر ممکن نیست");
        }

        LargeNumber dividend = new LargeNumber(number);
        LargeNumber divisor = new LargeNumber(operand);

        LargeNumber quotient = new LargeNumber("0");

        while (dividend.isGreaterThanOrEqual(divisor)) {
            dividend = dividend.subtract(divisor.getNumber());
            quotient = quotient.add("1");
        }

        return quotient.getNumber();
    }
}

and this is output:

Class: LargeNumber
  Method: getNumber
  Method: add
  Method: subtract
  Method: multiply
  Method: divide

I use JavaParser 3.25.8,

another example, for Example.java:

public class Example {

    private int field1;
    private String field2;

    public void method1() {
        field1 = 10;
        System.out.println(field2);
    }

    public void method2() {
        field2 = "Hello";
    }
}

output should be :

Class: Example
  Method: method1
    Field Access: field1
    Field Access: field2
  Method: method2
    Field Access: field2

but the output is:

Class: Example
  Method: method1
    Field Access: out
  Method: method2

[jlerbsc]

The result is correct. The expression below is an assignment (AssignExpr).

 field2 = "Hello";

[jlerbsc]

If we've answered your question, could you close this issue? Thank you.