Unnamed repository; edit this file 'description' to name the repository.
Fix proc macro server handling of strings with minuses
It used to decompose them thinking they were numbers.
| -rw-r--r-- | crates/proc-macro-srv/proc-macro-test/imp/src/lib.rs | 1 | ||||
| -rw-r--r-- | crates/proc-macro-srv/src/server_impl.rs | 54 | ||||
| -rw-r--r-- | crates/proc-macro-srv/src/tests/mod.rs | 2 |
3 files changed, 26 insertions, 31 deletions
diff --git a/crates/proc-macro-srv/proc-macro-test/imp/src/lib.rs b/crates/proc-macro-srv/proc-macro-test/imp/src/lib.rs index 6820e4b335..2a72e50f91 100644 --- a/crates/proc-macro-srv/proc-macro-test/imp/src/lib.rs +++ b/crates/proc-macro-srv/proc-macro-test/imp/src/lib.rs @@ -31,6 +31,7 @@ pub fn fn_like_mk_literals(_args: TokenStream) -> TokenStream { TokenTree::from(Literal::byte_string(b"byte_string")), TokenTree::from(Literal::character('c')), TokenTree::from(Literal::string("string")), + TokenTree::from(Literal::string("-string")), TokenTree::from(Literal::c_string(c"cstring")), // as of 2022-07-21, there's no method on `Literal` to build a raw // string or a raw byte string diff --git a/crates/proc-macro-srv/src/server_impl.rs b/crates/proc-macro-srv/src/server_impl.rs index ad28599033..dd576f23ae 100644 --- a/crates/proc-macro-srv/src/server_impl.rs +++ b/crates/proc-macro-srv/src/server_impl.rs @@ -199,37 +199,29 @@ pub(super) fn from_token_tree<Span: Copy>( } bridge::TokenTree::Literal(literal) => { - let token_trees = - if let Some((_minus, symbol)) = literal.symbol.as_str().split_once('-') { - let punct = tt::Punct { - spacing: tt::Spacing::Alone, - span: literal.span, - char: '-' as char, - }; - let leaf: tt::Leaf<Span> = tt::Leaf::from(punct); - let minus_tree = tt::TokenTree::from(leaf); - - let literal = tt::Literal { - symbol: Symbol::intern(symbol), - suffix: literal.suffix, - span: literal.span, - kind: literal_kind_to_internal(literal.kind), - }; - let leaf: tt::Leaf<Span> = tt::Leaf::from(literal); - let tree = tt::TokenTree::from(leaf); - vec![minus_tree, tree] - } else { - let literal = tt::Literal { - symbol: literal.symbol, - suffix: literal.suffix, - span: literal.span, - kind: literal_kind_to_internal(literal.kind), - }; - - let leaf: tt::Leaf<Span> = tt::Leaf::from(literal); - let tree = tt::TokenTree::from(leaf); - vec![tree] - }; + let mut token_trees = Vec::new(); + let mut symbol = literal.symbol; + if matches!( + literal.kind, + proc_macro::bridge::LitKind::Integer | proc_macro::bridge::LitKind::Float + ) && symbol.as_str().starts_with('-') + { + token_trees.push(tt::TokenTree::Leaf(tt::Leaf::Punct(tt::Punct { + spacing: tt::Spacing::Alone, + span: literal.span, + char: '-' as char, + }))); + symbol = Symbol::intern(&symbol.as_str()[1..]); + } + let literal = tt::Literal { + symbol, + suffix: literal.suffix, + span: literal.span, + kind: literal_kind_to_internal(literal.kind), + }; + let leaf: tt::Leaf<Span> = tt::Leaf::from(literal); + let tree = tt::TokenTree::from(leaf); + token_trees.push(tree); TokenStream { token_trees } } diff --git a/crates/proc-macro-srv/src/tests/mod.rs b/crates/proc-macro-srv/src/tests/mod.rs index 3a6ce639d1..d1ea89d2dc 100644 --- a/crates/proc-macro-srv/src/tests/mod.rs +++ b/crates/proc-macro-srv/src/tests/mod.rs @@ -244,6 +244,7 @@ fn test_fn_like_mk_literals() { LITERAL ByteStr byte_string 1 LITERAL Char c 1 LITERAL Str string 1 + LITERAL Str -string 1 LITERAL CStr cstring 1 LITERAL Float 3.14f64 1 PUNCH - [alone] 1 @@ -266,6 +267,7 @@ fn test_fn_like_mk_literals() { LITERAL ByteStr byte_string 42:[email protected]#ROOT2024 LITERAL Char c 42:[email protected]#ROOT2024 LITERAL Str string 42:[email protected]#ROOT2024 + LITERAL Str -string 42:[email protected]#ROOT2024 LITERAL CStr cstring 42:[email protected]#ROOT2024 LITERAL Float 3.14f64 42:[email protected]#ROOT2024 PUNCH - [alone] 42:[email protected]#ROOT2024 |