groovy_compiler

Description

This a simple compiler written in Groovy

How to compile

This project compiles with gradle Run

./gradlew uberjar

Note that the gradlew script was made for an Unix environment. It might not work on other OS.

How to run

Once you've compiled the jar file, you can execute it with java such as below

java -jar build/libs/compiler-1.0.jar file1 file2 file3 ...

This programs expects a list of files as input. It will generate the compiled code in a new file starting with the same name as the input and ending with the '.code' extension

What is supported (currently)

This compiler can compile

Arithmetic expressions

It supports basic and boolean operators e.g:

4 + 2
4 - (6 * 4 / 2)
5 % (4 - 4 * (5 - 3))
(1 >= 2) or (3 != 2)
(3 and 0) == (0 or 0)

Variables

You can declare, and assign values to variables:

var x;
x = 14;
var y = 3;
var z = x + 5* y;

for and while loops

for and while loops are handled, like in the following example

var i;
for (i = 0; i < 10; i = i + 1) {
    print i;
}

var i = 0;
while (i < 10) {
    print i;
    i = i + 1;
}

You can print the value of variable with the print function

Error handling

When there is an error while compiling, the error is displayed on the standard output. You can see what caused the error (the line and column of the error is displayed but it is not working, sometimes there is a little offset for the column).

##Write a program A source code should have functions, with one named main() with no parameters like in the following example

add1(a) {
    return a + 1;
}

main() {
   print add1(6);
}

The main() function will be executed

There are some already built-in functions so you can't write a functions named:

• power