remove display
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1a721a22ac
commit
586ddd1aec
10
src/lexer.rs
10
src/lexer.rs
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@ -4,7 +4,7 @@ use std::{fmt, iter::Peekable};
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pub struct Ident(String);
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impl fmt::Display for Ident {
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fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
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write!(f, "{}", self.0)
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self.0.fmt(f)
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}
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}
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@ -66,13 +66,13 @@ pub enum Token {
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#[derive(PartialEq, Eq, PartialOrd, Ord)]
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pub enum Precedence {
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Min,
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Equality,
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Relational,
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Logical,
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Assign,
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AddSub,
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MulDiv,
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Pow,
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Assign,
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Logical,
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Relational,
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Equality,
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}
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#[derive(PartialEq, Eq)]
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pub enum Associativity {
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@ -9,5 +9,5 @@ fn main() {
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let lexer = Lexer::new(script.chars());
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let mut parser = Parser::new(lexer.map(Result::unwrap));
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let block = parser.parse().unwrap();
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println!("{block}");
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println!("{block:?}");
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}
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@ -1,9 +1,6 @@
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use std::{
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fmt::{self, Pointer},
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iter::Peekable,
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};
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use std::iter::Peekable;
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use crate::lexer::{Associativity, Ident, LexError, Literal, Precedence, Token};
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use crate::lexer::{Associativity, LexError, Literal, Precedence, Token};
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#[derive(Debug)]
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pub enum Expr {
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@ -35,61 +32,11 @@ pub enum Expr {
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Divide(Box<Expr>, Box<Expr>),
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Exponent(Box<Expr>, Box<Expr>),
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}
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impl fmt::Display for Expr {
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fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
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match self {
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Expr::Assignment(l, r) => write!(f, "({l} = {r})\n"),
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Expr::Literal(l) => write!(f, "{l}"),
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Expr::Call(l, r) => {
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write!(f, "{l}(")?;
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for e in r {
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write!(f, "{e}, ")?;
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}
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write!(f, ")")?;
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Ok(())
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}
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Expr::Return(l) => {
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write!(f, "return {l}")
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}
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Expr::Block(b) => {
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write!(f, "{{\n")?;
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for e in &b.exprs {
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write!(f, "\t{e}\n")?;
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}
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write!(f, "}}")?;
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Ok(())
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}
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Expr::Negate(l) => write!(f, "(-{l})"),
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Expr::Not(l) => write!(f, "(!{l})"),
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Expr::EqualTo(l, r) => write!(f, "({l} == {r})"),
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Expr::NotEqualTo(l, r) => write!(f, "({l} != {r})"),
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Expr::And(l, r) => write!(f, "({l} && {r})"),
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Expr::Or(l, r) => write!(f, "({l} !|| {r})"),
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Expr::LessThan(l, r) => write!(f, "({l} < {r})"),
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Expr::LessThanOrEqualTo(l, r) => write!(f, "({l} <= {r})"),
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Expr::GreaterThan(l, r) => write!(f, "({l} > {r})"),
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Expr::GreaterThanOrEqualTo(l, r) => write!(f, "({l} >= {r})"),
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Expr::Add(l, r) => write!(f, "({l} + {r})"),
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Expr::Subtract(l, r) => write!(f, "({l} - {r})"),
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Expr::Multiply(l, r) => write!(f, "({l} * {r})"),
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Expr::Divide(l, r) => write!(f, "({l} / {r})"),
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Expr::Exponent(l, r) => write!(f, "({l} ^ {r})"),
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}
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}
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}
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#[derive(Debug, Default)]
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pub struct Block {
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exprs: Vec<Expr>,
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}
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impl fmt::Display for Block {
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fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
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for e in &self.exprs {
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e.fmt(f)?;
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}
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Ok(())
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}
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}
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#[derive(Debug)]
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pub enum ParseError {
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