const std = @import("std");
const tokenize = @import("tokenizer.zig").tokenize;
const parse = @import("parser.zig").parse;
const treewalk = @import("treewalker.zig").interpret;

pub fn main() !void
{
	var gpa = std.heap.GeneralPurposeAllocator(.{}){};
	defer _ = gpa.deinit();
	const allocator = gpa.allocator();

	const args = try std.process.argsAlloc(allocator);
	defer std.process.argsFree(allocator, args);
	const file = try std.fs.cwd().openFile(args[1], .{});
	defer file.close();
	const content = try file.readToEndAlloc(allocator, 13000);
	defer allocator.free(content);
	const tokens = try tokenize(content, allocator);
	defer
	{
		var i: usize = 0;
		while(i < tokens.len)
		{
			switch(tokens[i].tokenData)
			{
				.string => |*data|
				{
					allocator.free(data.*);
				},
				else => {}
			}
			i += 1;
		}
		allocator.free(tokens);
	}
	var parserAllocator = std.heap.ArenaAllocator.init(std.heap.page_allocator);
	defer parserAllocator.deinit();
	const root = try parse(tokens, &parserAllocator);
	try treewalk(root, allocator);
}