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Rollup merge of #136355 - GuillaumeGomez:proc-macro_add_value_retrieval_methods, r=Amanieu

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Add `*_value` methods to proc_macro lib

This is the implementation of https://github.com/rust-lang/libs-team/issues/459.

It allows to get the actual value (unescaped) of the different string literals.

Part of https://github.com/rust-lang/rust/issues/136652.

r? libs-api
This commit is contained in:
Jacob Pratt 2025-03-17 05:47:48 -04:00 • committed by GitHub
commit 08dfbf49e3
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GPG key ID: B5690EEEBB952194
27 changed files with 253 additions and 15 deletions
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1
compiler/rustc_parse/Cargo.toml
View file

@ -6,6 +6,7 @@ edition = "2024"
[dependencies]
# tidy-alphabetical-start
bitflags = "2.4.1"
literal-escaper = { path = "../../library/literal-escaper" }
rustc_ast = { path = "../rustc_ast" }
rustc_ast_pretty = { path = "../rustc_ast_pretty" }
rustc_data_structures = { path = "../rustc_data_structures" }

6
compiler/rustc_parse/src/lexer/mod.rs
View file

@ -1,12 +1,12 @@
use std::ops::Range;
use literal_escaper::{self, EscapeError, Mode};
use rustc_ast::ast::{self, AttrStyle};
use rustc_ast::token::{self, CommentKind, Delimiter, IdentIsRaw, Token, TokenKind};
use rustc_ast::tokenstream::TokenStream;
use rustc_ast::util::unicode::contains_text_flow_control_chars;
use rustc_errors::codes::*;
use rustc_errors::{Applicability, Diag, DiagCtxtHandle, StashKey};
use rustc_lexer::unescape::{self, EscapeError, Mode};
use rustc_lexer::{Base, Cursor, DocStyle, LiteralKind, RawStrError};
use rustc_session::lint::BuiltinLintDiag;
use rustc_session::lint::builtin::{
@ -970,7 +970,7 @@ impl<'psess, 'src> Lexer<'psess, 'src> {
postfix_len: u32,
) -> (token::LitKind, Symbol) {
self.cook_common(kind, mode, start, end, prefix_len, postfix_len, |src, mode, callback| {
unescape::unescape_unicode(src, mode, &mut |span, result| {
literal_escaper::unescape_unicode(src, mode, &mut |span, result| {
callback(span, result.map(drop))
})
})
@ -986,7 +986,7 @@ impl<'psess, 'src> Lexer<'psess, 'src> {
postfix_len: u32,
) -> (token::LitKind, Symbol) {
self.cook_common(kind, mode, start, end, prefix_len, postfix_len, |src, mode, callback| {
unescape::unescape_mixed(src, mode, &mut |span, result| {
literal_escaper::unescape_mixed(src, mode, &mut |span, result| {
callback(span, result.map(drop))
})
})

2
compiler/rustc_parse/src/lexer/unescape_error_reporting.rs
View file

@ -3,8 +3,8 @@
use std::iter::once;
use std::ops::Range;
use literal_escaper::{EscapeError, Mode};
use rustc_errors::{Applicability, DiagCtxtHandle, ErrorGuaranteed};
use rustc_lexer::unescape::{EscapeError, Mode};
use rustc_span::{BytePos, Span};
use tracing::debug;

2
compiler/rustc_parse/src/parser/expr.rs
View file

@ -6,6 +6,7 @@ use core::ops::{Bound, ControlFlow};
use ast::mut_visit::{self, MutVisitor};
use ast::token::{IdentIsRaw, MetaVarKind};
use ast::{CoroutineKind, ForLoopKind, GenBlockKind, MatchKind, Pat, Path, PathSegment, Recovered};
use literal_escaper::unescape_char;
use rustc_ast::ptr::P;
use rustc_ast::token::{self, Delimiter, Token, TokenKind};
use rustc_ast::tokenstream::TokenTree;
@ -21,7 +22,6 @@ use rustc_ast::{
use rustc_ast_pretty::pprust;
use rustc_data_structures::stack::ensure_sufficient_stack;
use rustc_errors::{Applicability, Diag, PResult, StashKey, Subdiagnostic};
use rustc_lexer::unescape::unescape_char;
use rustc_macros::Subdiagnostic;
use rustc_session::errors::{ExprParenthesesNeeded, report_lit_error};
use rustc_session::lint::BuiltinLintDiag;