mfpiccolo

require 'ffi'

module Scrape
  extend FFI::Library
  ffi_lib './target/debug/libscrape.dylib'

  class TwoNumbers < FFI::Struct
    layout :first, :int32,
           :second, :int32
  end

mfpiccolo

pub struct TwoNumbers {
    first: i32,
    second: i32,
}

#[no_mangle]
pub extern fn add_struct_vals(numbers: TwoNumbers) -> i32 {
    numbers.first + numbers.second
}

mfpiccolo

#![feature(libc)]
#![feature(cstr_to_str)]
#![feature(cstr_memory)]

extern crate hyper;
extern crate libc;

use hyper::Client;
use hyper::header::Connection;
use std::io::Read;

mfpiccolo

require 'ffi'

module Scrape
  extend FFI::Library
  ffi_lib './target/debug/libscrape.dylib'

  attach_function :get_body, [:string], :string
end

body = Scrape.get_body("http://doc.rust-lang.org")[191..230]

mfpiccolo

#![feature(slice_chars)]

extern crate hyper;

use hyper::Client;
use hyper::header::Connection;
use std::io::Read;

fn get_body(url: &str) -> String {
  let client = Client::new();

mfpiccolo

fn get_body(url: &str) -> String {
  let client = Client::new();
  let temp_resp = client.get(url).header(Connection::close()).send();
  let mut resp = temp_resp.unwrap();

}

#[test]
fn it_works() {
  assert_eq!(

mfpiccolo

fn get_body(url: String) -> String {

}

#[test]
fn it_works() {
  assert_eq!(
    get_body(&"http://www.rust-lang.org".to_string()).slice_chars(73, 105),
    "<title>The Rust Programming Lang"
  );

mfpiccolo

[package]
name = "scrape"
version = "0.1.0"
authors = ["Mike Piccolo <[email protected]>"]

[lib]
name = "scrape"
crate-type = ["dylib"]

[dependencies.hyper]

mfpiccolo

#![feature(libc)]
#![feature(cstr_to_str)]
#![feature(cstr_memory)]
extern crate libc;

use std::ffi::{CStr, CString};
#[no_mangle]
pub extern fn ruby_reverse(s: *const libc::c_char) -> *const libc::c_char {
  let str = ruby_string_to_ref_str(s);
  let string: String = str.chars().rev().collect();

mfpiccolo

fn ruby_string_to_ref_str<'a>(r_string: *const libc::c_char) -> &'a str {
  unsafe { CStr::from_ptr(r_string) }.to_str().unwrap()
}

fn string_to_ruby_string(string: String) -> *const libc::c_char {
  CString::new(string).unwrap().into_ptr()
}