Rename ast::Lit as ast::MetaItemLit.

This commit is contained in:
Nicholas Nethercote
2022-11-23 15:39:42 +11:00
parent aa10aad1ac
commit e4a9150872
18 changed files with 103 additions and 84 deletions

View File

@@ -1,6 +1,6 @@
//! Code related to parsing literals.
use crate::ast::{self, Lit, LitKind};
use crate::ast::{self, LitKind, MetaItemLit};
use crate::token::{self, Token};
use rustc_lexer::unescape::{byte_from_char, unescape_byte, unescape_char, unescape_literal, Mode};
use rustc_span::symbol::{kw, sym, Symbol};
@@ -195,26 +195,26 @@ impl LitKind {
}
}
impl Lit {
/// Converts literal token into an AST literal.
pub fn from_token_lit(token_lit: token::Lit, span: Span) -> Result<Lit, LitError> {
Ok(Lit { token_lit, kind: LitKind::from_token_lit(token_lit)?, span })
impl MetaItemLit {
/// Converts token literal into a meta item literal.
pub fn from_token_lit(token_lit: token::Lit, span: Span) -> Result<MetaItemLit, LitError> {
Ok(MetaItemLit { token_lit, kind: LitKind::from_token_lit(token_lit)?, span })
}
/// Converts an arbitrary token into an AST literal.
pub fn from_token(token: &Token) -> Option<Lit> {
/// Converts an arbitrary token into meta item literal.
pub fn from_token(token: &Token) -> Option<MetaItemLit> {
token::Lit::from_token(token)
.and_then(|token_lit| Lit::from_token_lit(token_lit, token.span).ok())
.and_then(|token_lit| MetaItemLit::from_token_lit(token_lit, token.span).ok())
}
/// Attempts to recover an AST literal from semantic literal.
/// Attempts to create a meta item literal from a `LitKind`.
/// This function is used when the original token doesn't exist (e.g. the literal is created
/// by an AST-based macro) or unavailable (e.g. from HIR pretty-printing).
pub fn from_lit_kind(kind: LitKind, span: Span) -> Lit {
Lit { token_lit: kind.to_token_lit(), kind, span }
pub fn from_lit_kind(kind: LitKind, span: Span) -> MetaItemLit {
MetaItemLit { token_lit: kind.to_token_lit(), kind, span }
}
/// Losslessly convert an AST literal into a token.
/// Losslessly convert a meta item literal into a token.
pub fn to_token(&self) -> Token {
let kind = match self.token_lit.kind {
token::Bool => token::Ident(self.token_lit.symbol, false),