Implement Debug on Expression
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1 changed files with 4 additions and 3 deletions
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@ -3,8 +3,9 @@
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*/
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use std::fmt;
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use std::ops::Deref;
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use lexer;
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use lexer::Token;
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use types;
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pub struct Program {
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@ -20,7 +21,7 @@ impl Program {
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pub enum Expression {
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EOF,
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Atom(Box<types::Value>),
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List { left: lexer::Token, expr: Vec<Box<Expression>>, right: lexer::Token },
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List { left: Token, expr: Vec<Box<Expression>>, right: Token },
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}
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impl fmt::Debug for Expression {
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@ -28,7 +29,7 @@ impl fmt::Debug for Expression {
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match *self {
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Expression::EOF => write!(f, "EOF"),
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Expression::Atom(ref value) => write!(f, "Atom{{ {:?} }}", value),
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Expression::List{ left: ref lt, expr: ref expr, right: ref rt } => {
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Expression::List{ left: ref lt, ref expr, right: ref rt } => {
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write!(f, "{:?} {:?} {:?}", lt, expr, rt)
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},
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}
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