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Prevent stackoverflow

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This commit is contained in:
Hanif Bin Ariffin 2020-09-21 04:19:51 +08:00
parent 2e0edc0f28
commit dc655b2842
1 changed files with 13 additions and 1 deletions
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14
compiler/rustc_ast/src/ast.rs
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@ -27,6 +27,7 @@ use crate::token::{self, CommentKind, DelimToken};
use crate::tokenstream::{DelimSpan, TokenStream, TokenTree};
use rustc_data_structures::stable_hasher::{HashStable, StableHasher};
use rustc_data_structures::stack::ensure_sufficient_stack;
use rustc_data_structures::sync::Lrc;
use rustc_data_structures::thin_vec::ThinVec;
use rustc_macros::HashStable_Generic;
@ -1864,7 +1865,7 @@ pub enum AssocTyConstraintKind {
Bound { bounds: GenericBounds },
}
#[derive(Clone, Encodable, Decodable, Debug)]
#[derive(Encodable, Decodable, Debug)]
pub struct Ty {
pub id: NodeId,
pub kind: TyKind,
@ -1872,6 +1873,17 @@ pub struct Ty {
pub tokens: Option<TokenStream>,
}
impl Clone for Ty {
fn clone(&self) -> Self {
ensure_sufficient_stack(|| Self {
id: self.id,
kind: self.kind.clone(),
span: self.span,
tokens: self.tokens.clone(),
})
}
}
#[derive(Clone, Encodable, Decodable, Debug)]
pub struct BareFnTy {
pub unsafety: Unsafe,