bjoernager/rust
bjoernager/rust
1
Fork 0
Code Issues Pull requests Activity

Auto merge of #103812 - clubby789:improve-include-bytes, r=petrochenkov

Browse source 
Delay `include_bytes` to AST lowering

Hopefully addresses #65818.
This PR introduces a new `ExprKind::IncludedBytes` which stores the path and bytes of a file included with `include_bytes!()`. We can then create a literal from the bytes during AST lowering, which means we don't need to escape the bytes into valid UTF8 which is the cause of most of the overhead of embedding large binary blobs.
This commit is contained in:
bors 2022-11-12 14:30:34 +00:00
commit 8ef2485bd5
19 changed files with 78 additions and 15 deletions
Download patch file Download diff file Expand all files Collapse all files

7
compiler/rustc_expand/src/proc_macro_server.rs
View file

@ -525,6 +525,13 @@ impl server::TokenStream for Rustc<'_, '_> {
ast::ExprKind::Lit(l) => {
Ok(tokenstream::TokenStream::token_alone(token::Literal(l.token_lit), l.span))
}
ast::ExprKind::IncludedBytes(bytes) => {
let lit = ast::Lit::from_included_bytes(bytes, expr.span);
Ok(tokenstream::TokenStream::token_alone(
token::TokenKind::Literal(lit.token_lit),
expr.span,
))
}
ast::ExprKind::Unary(ast::UnOp::Neg, e) => match &e.kind {
ast::ExprKind::Lit(l) => match l.token_lit {
token::Lit { kind: token::Integer | token::Float, .. } => {