Rename bang->apply

! syntax item has been referred to as "bang" instead of "apply" in some
places, this is fixed

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

src/syn/lexer.rs

@@ -12,7 +12,7 @@ lazy_static! {
         |   (?P<lquote>\[)
         |   (?P<rquote>\])
         |   (?P<colon>:)
-        |   (?P<bang>!)
+        |   (?P<apply>!)
         |   (?P<str>"([^"\\]|\\["'\\ntrb])*")
         )"#
     )
@@ -103,8 +103,8 @@ impl<'t> Lexer<'t> {
                 self.make_token(Token::RQuote)
             } else if let Some(_) = cap.name("colon") {
                 self.make_token(Token::Colon)
-            } else if let Some(_) = cap.name("bang") {
-                self.make_token(Token::Bang)
+            } else if let Some(_) = cap.name("apply") {
+                self.make_token(Token::Apply)
             } else {
                 panic!(
                     "matched lex pattern, but did not catch this capture: {:?}",

src/syn/parser.rs

@@ -117,7 +117,7 @@ impl<'t> Parser<'t> {
 
     pub fn next_atom(&mut self) -> Result<SpAtom> {
         use Token::*;
-        let token = self.expect_any_token(&[Assign, Word, Float, Int, Str, Bang])?;
+        let token = self.expect_any_token(&[Assign, Word, Float, Int, Str, Apply])?;
         Ok(self.token_to_atom(token))
     }
 
@@ -131,7 +131,7 @@ impl<'t> Parser<'t> {
             Token::Float => Atom::Float(text.parse().unwrap()),
             Token::Int => Atom::Int(text.parse().unwrap()),
             Token::Str => Atom::Str(unescape_string(text)),
-            Token::Bang => Atom::Apply,
+            Token::Apply => Atom::Apply,
             _ => panic!("invalid token specified for token_to_atom, it should be an atom"),
         };
         SpAtom::new(span, atom)

src/syn/token.rs

@@ -27,8 +27,8 @@ pub enum Token {
     /// Colon.
     Colon,
 
-    /// Bang (apply).
-    Bang,
+    /// Apply.
+    Apply,
 }
 
 impl Token {
@@ -43,7 +43,7 @@ impl Token {
             LQuote => "quote begin",
             RQuote => "quote end",
             Colon => "colon",
-            Bang => "bang",
+            Apply => "apply",
         }
     }
 }

src/vm/machine.rs

@@ -34,7 +34,7 @@ pub struct NativeFrame {
 #[derive(Debug, Clone)]
 pub struct QuoteFrame {
     locals: BTreeMap<Word, Option<Value>>,
-    code: Rc<Vec<Inst>>, // TODO - deduplicate this with some kind of shared pointer
+    code: Rc<Vec<Inst>>,
     pc: usize,
 }