martinezlucas98/java2cpp

FLEX & BISON Java to C++ translator. NOTICE: it is still under development.

Hi , I'm Lucas Martínez

Currently pursuing a Master in CS at NYU. I like to Code, Design, Innovate and Experiment, and recently discovered my passion for AI and ML 🚀. I am an enthusiast for innovation and always up for new challenges!

java2cpp's Issues

Implement Syntax Error

Implement Syntax Error

Description:
An error message must be printed when a syntax error occurs.
For now we will implement Panic-Mode Error Recovery. This can be upgraded in the future.

Implement print function grammar

Print function grammar

Description:

The most common function is the print function, this is a MUST HAVE for any translator.
The following grammars must be added:

• System.out.println(expr); -----> std::cout << expr << std::endl;
• System.out.print(expr); -----> std::cout << expr ;

implement array parameter with fix value

Text input function grammar

Text input function grammar

Description:

The following translations are needed and must be added:

• Scanner my_input = new Scanner(System.in); -----> string my_input; std::cin >> my_input;
• my_input = new Scanner(System.in); -----> std::cin >> my_input;

Translate method with params

Implement declaration of array

Required support for Java declarations:

• double[ ] arr1 = new int[5];
• int[ ] arr2 = {5,4,3,2,1};
• double[ ][ ] arr3 = new int[3][5];
• int[ ][ ] arr4 = {{1,2,3},{4,5,6},{7,8,9}};

Full support for the for loop

Full support for the for loop

Description:

java2cpp translator does not support for loop grammar at the moment. This grammar must be implemented.
The followings must be implemented:

• 1. Classic C style for loop
• 2. For-each loop

Implement while and do-while

Implement while and do while

Description:

The translator has no grammar for the while and do-while loops. These are major features that must be added.
The followings must be implemented:

• 1. while loop grammar
• 2. do while loop grammar

Implement symbol table and "variable not declared" error

Implement symbol table and "variable not declared" error

Description:
An error message must be printed when a "variable not declared" or "variable not declared in scope" error occurs.
For now we will implement Panic-Mode Error Recovery. This can be upgraded in the future.

Define method scope

Title

Description:

A clear description of the issue.
Describe the solution you'd like.
Describe alternatives you've considered.

Additional context:

Add any other context or screenshots about the feature request here.

Full support for the if-else statement

Full support for the if-else statement

Description:

java2cpp translator does not support if-else grammar at the moment. This grammar must be implemented.
The followings must be implemented:

• 1. if-else grammar
• 2. if-else if grammar
• 3. if-else if - else grammar
• 4. Embedded if-else statements

Accept and detect constant variables

Title

Description:

A clear description of the issue.
Describe the solution you'd like.
Describe alternatives you've considered.

Additional context:

Add any other context or screenshots about the feature request here.

Implement Type Error

Implement Type Error

Description:
An error message must be printed when a type error occurs.
For now we will implement Panic-Mode Error Recovery. This can be upgraded in the future.

Save result in a .cc file

No impirmir el codigo, sino guardar en un archivo

Bug: variables are printed within [ ]

Bug: variables are printed within [ ]

Description:

When a variable is detected as part of an expression it is printed within [ ]

To Reproduce:

Steps to reproduce the behavior:

1. Create a input file, for example testing.java as follows:

public class Main {
  public static void main(String[] args) {
    int a =3+6;
    int b = a+2;
  }
}

2. Execute java2cpp
3. Error - the translation results in:

int main(int argc, char **argv){
        int a = 3+6;
        int b = [a]+2;

}

Expected behavior:

The translation should be:

int main(int argc, char **argv){
        int a = 3+6;
        int b = a+2;

}