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Change SyntaxNode's Hash and Eq to be based on pointer equality (#15)

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DQ 2021-02-10 22:23:31 +01:00 • committed by GitHub
parent d67c18cc11
commit f6905735eb
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2 changed files with 3 additions and 9 deletions
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7
src/green/node.rs
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@ -5,7 +5,7 @@ use std::{
};
use fxhash::FxHasher32;
use servo_arc::{Arc, HeaderSlice, HeaderWithLength, ThinArc};
use servo_arc::{Arc, HeaderWithLength, ThinArc};
use crate::{
green::{GreenElement, GreenElementRef, PackedGreenElement, SyntaxKind},
@ -122,11 +122,6 @@ impl GreenNode {
inner: self.data.slice.iter(),
}
}
pub(crate) fn ptr(&self) -> *const u8 {
let r: &HeaderSlice<_, _> = &self.data;
r as *const _ as _
}
}
impl Hash for GreenNode {

5
src/syntax.rs
View file

@ -185,7 +185,7 @@ impl<L: Language, D, R> SyntaxNode<L, D, R> {
// Identity semantics for hash & eq
impl<L: Language, D, R> PartialEq for SyntaxNode<L, D, R> {
fn eq(&self, other: &SyntaxNode<L, D, R>) -> bool {
self.green().ptr() == other.green().ptr() && self.text_range().start() == other.text_range().start()
self.data == other.data
}
}
@ -193,8 +193,7 @@ impl<L: Language, D, R> Eq for SyntaxNode<L, D, R> {}
impl<L: Language, D, R> Hash for SyntaxNode<L, D, R> {
fn hash<H: Hasher>(&self, state: &mut H) {
ptr::hash(self.green().ptr(), state);
self.text_range().start().hash(state);
ptr::hash(self.data, state);
}
}