Add vm:📦:Package, instruction disassembly

* Code is compiled into a vm:📦:Package which contains the
  executable code, the constants, and the local name mappings.

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

src/compile/mod.rs

@@ -3,7 +3,7 @@ pub mod error;
 mod locals;
 pub mod thunk;
 
-use crate::{syn::ast::Body, obj::prelude::*, vm::{consts::*, inst::Inst}};
+use crate::{syn::ast::Body, obj::prelude::*, vm::{consts::*, package::Package}};
 use std::collections::{BTreeMap, HashMap};
 
 #[derive(Default)]
@@ -22,12 +22,12 @@ impl Compile {
     }
 
     /// Compiles the given AST body.
-    pub fn compile<'c>(&'c mut self, body: &Body) -> error::Result<(Vec<Inst>, &'c ConstPool)> {
-        let main = thunk::CompileBody::new(self)
+    pub fn compile(mut self, body: &Body) -> error::Result<Package> {
+        let main = thunk::CompileBody::new(&mut self)
             .compile(body)?
             .flatten()
             .to_vec();
-        Ok((main, &self.const_data.const_pool))
+        Ok(Package::new(self.names, self.const_data.const_pool, main))
     }
 
     /// Gets the constant data that is interned in this compile session.
@@ -119,6 +119,9 @@ impl Compile {
     }
 }
 
+/// Constant data pool used for building the const pool.
+///
+/// This distinguishes between the different types while building a const pool to avoid duplicates.
 #[derive(Debug, Default)]
 pub struct ConstData {
     ints: HashMap<i64, (ConstHandle, IntRef)>,