Clean up warnings, update next_body, add more tests

Signed-off-by: Alek Ratzloff <alekratz@gmail.com>

src/main.rs

@@ -3,9 +3,7 @@ mod syn;
 use std::{
     convert::TryFrom,
     fs,
-    io::{stdout, Write},
-    path::{Path, PathBuf},
-    process,
+    path::PathBuf,
 };
 use structopt::StructOpt;
 
@@ -34,35 +32,7 @@ fn main() -> Result<()> {
 
     let opt = Options::from_args();
     let text = fs::read_to_string(&opt.input)?;
-    let parser = Parser::try_from(text.as_str())?;
-    /*
-    let object = assemble::assemble_path(&opt.input)?;
-
-    if opt.compile_only {
-        let outfile = opt.out.clone().unwrap_or_else(|| {
-            let mut outfile = opt.input.clone();
-            assert!(outfile.set_extension("obj"));
-            outfile
-        });
-        let bytes = object.to_bytes();
-        let mut writer = get_writer(&outfile)?;
-        writer.write(&bytes)?;
-        Ok(())
-    } else if opt.disassemble {
-        let outfile = opt
-            .out
-            .as_ref()
-            .map(|p| p.as_path())
-            .unwrap_or_else(|| Path::new("-"));
-        let mut writer = get_writer(&outfile)?;
-        object.disasm(&mut writer)?;
-        Ok(())
-    } else {
-        let mut state = State::new();
-        state.load_object(object, opt.max_mem.unwrap_or(DEFAULT_MAX_MEM))?;
-        let status = state.exec()?;
-        process::exit((status & 0xffff_ffff) as i32);
-    }
-    */
+    let mut parser = Parser::try_from(text.as_str())?;
+    println!("{:#?}", parser.next_body()?);
     Ok(())
 }