bjoernager/rust
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Implement mut ref/mut ref mut

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Jules Bertholet 2024-03-23 21:04:45 -04:00
parent 10a7aa14fe
commit e0da13f25f
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GPG key ID: 32034DAFC38C1BFC
51 changed files with 442 additions and 378 deletions
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16
compiler/rustc_parse/src/parser/mod.rs
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@ -24,12 +24,11 @@ use rustc_ast::token::{self, Delimiter, Token, TokenKind};
use rustc_ast::tokenstream::{AttributesData, DelimSpacing, DelimSpan, Spacing};
use rustc_ast::tokenstream::{TokenStream, TokenTree, TokenTreeCursor};
use rustc_ast::util::case::Case;
use rustc_ast::AttrId;
use rustc_ast::CoroutineKind;
use rustc_ast::DUMMY_NODE_ID;
use rustc_ast::{self as ast, AnonConst, Const, DelimArgs, Extern};
use rustc_ast::{AttrArgs, AttrArgsEq, Expr, ExprKind, Mutability, StrLit};
use rustc_ast::{HasAttrs, HasTokens, Unsafe, Visibility, VisibilityKind};
use rustc_ast::{
self as ast, AnonConst, AttrArgs, AttrArgsEq, AttrId, ByRef, Const, CoroutineKind, DelimArgs,
Expr, ExprKind, Extern, HasAttrs, HasTokens, Mutability, StrLit, Unsafe, Visibility,
VisibilityKind, DUMMY_NODE_ID,
};
use rustc_ast_pretty::pprust;
use rustc_data_structures::fx::FxHashMap;
use rustc_errors::PResult;
@ -1273,6 +1272,11 @@ impl<'a> Parser<'a> {
if self.eat_keyword(kw::Mut) { Mutability::Mut } else { Mutability::Not }
}
/// Parses reference binding mode (`ref`, `ref mut`, or nothing).
fn parse_byref(&mut self) -> ByRef {
if self.eat_keyword(kw::Ref) { ByRef::Yes(self.parse_mutability()) } else { ByRef::No }
}
/// Possibly parses mutability (`const` or `mut`).
fn parse_const_or_mut(&mut self) -> Option<Mutability> {
if self.eat_keyword(kw::Mut) {