bjoernager/rust
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Remove most of Hash impls from AST and HIR structures

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This commit is contained in:
Vadim Petrochenkov 2018-06-27 00:57:27 +03:00
parent 4d1a30c92b
commit 5987fe8f75
7 changed files with 208 additions and 210 deletions
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20
src/libsyntax/tokenstream.rs
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@ -33,10 +33,9 @@ use util::RcSlice;
use std::borrow::Cow;
use std::{fmt, iter, mem};
use std::hash::{self, Hash};
/// A delimited sequence of token trees
#[derive(Clone, PartialEq, RustcEncodable, RustcDecodable, Hash, Debug)]
#[derive(Clone, PartialEq, RustcEncodable, RustcDecodable, Debug)]
pub struct Delimited {
/// The type of delimiter
pub delim: token::DelimToken,
@ -93,7 +92,7 @@ impl Delimited {
///
/// The RHS of an MBE macro is the only place `SubstNt`s are substituted.
/// Nothing special happens to misnamed or misplaced `SubstNt`s.
#[derive(Debug, Clone, PartialEq, RustcEncodable, RustcDecodable, Hash)]
#[derive(Debug, Clone, PartialEq, RustcEncodable, RustcDecodable)]
pub enum TokenTree {
/// A single token
Token(Span, token::Token),
@ -605,14 +604,6 @@ impl Decodable for TokenStream {
}
}
impl Hash for TokenStream {
fn hash<H: hash::Hasher>(&self, state: &mut H) {
for tree in self.trees() {
tree.hash(state);
}
}
}
impl Encodable for ThinTokenStream {
fn encode<E: Encoder>(&self, encoder: &mut E) -> Result<(), E::Error> {
TokenStream::from(self.clone()).encode(encoder)
@ -625,13 +616,6 @@ impl Decodable for ThinTokenStream {
}
}
impl Hash for ThinTokenStream {
fn hash<H: hash::Hasher>(&self, state: &mut H) {
TokenStream::from(self.clone()).hash(state);
}
}
#[cfg(test)]
mod tests {
use super::*;