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Implement Debug on Expression

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This commit is contained in:
Eryn Wells 2017-01-14 10:22:28 -08:00
parent 954bec9ab5
commit ec330c2582
1 changed files with 4 additions and 3 deletions
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7
src/parser/nodes.rs
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@ -3,8 +3,9 @@
*/ */
use std::fmt; use std::fmt;
use std::ops::Deref;
use lexer; use lexer::Token;
use types; use types;
pub struct Program { pub struct Program {
@ -20,7 +21,7 @@ impl Program {
pub enum Expression { pub enum Expression {
EOF, EOF,
Atom(Box<types::Value>), Atom(Box<types::Value>),
List { left: lexer::Token, expr: Vec<Box<Expression>>, right: lexer::Token }, List { left: Token, expr: Vec<Box<Expression>>, right: Token },
} }
impl fmt::Debug for Expression { impl fmt::Debug for Expression {
@ -28,7 +29,7 @@ impl fmt::Debug for Expression {
match *self { match *self {
Expression::EOF => write!(f, "EOF"), Expression::EOF => write!(f, "EOF"),
Expression::Atom(ref value) => write!(f, "Atom{{ {:?} }}", value), Expression::Atom(ref value) => write!(f, "Atom{{ {:?} }}", value),
Expression::List{ left: ref lt, expr: ref expr, right: ref rt } => { Expression::List{ left: ref lt, ref expr, right: ref rt } => {
write!(f, "{:?} {:?} {:?}", lt, expr, rt) write!(f, "{:?} {:?} {:?}", lt, expr, rt)
}, },
} }