A small Compiler

File extention

Source Code (.grp)
AST         (.ast)
IR          (.ir)
Assembly    (.s)

WC          (.wc)

Converter

Source Code -> AST      : front_end
AST         -> IR       : middle_end
IR          -> Assembly : back_end

IR          -> WC       : middle_end

Grammar

parse : [function_declaration]*
function_declaration : type identifier '(' [ type identifier [ ',' type identifier ]* ]? ')' closure
closure : '{' [statement]* '}'
statement : "if" '(' integer ')' closure
          | "while" '(' integer ')' closure
          | "return" integer ';'
          | identifier '=' integer ';'
type : "Number"

.wc file layout

int magic;
int functions_size;
function[] functions;
int constant_pool_count;
constant[] constant_pool;

function

int instructions_size;
int[] instructions;

constant string

int tag;
int size;
byte[] value;

constant int

int tag;
int value;

(VirtualMachine)[https://github.com/sKyrBBit/challenging]

library

group : Array, List, Set, Map
stream : 
math : sin, cos, tan, max, min
io : File FileReader FileWriter