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rustc_parse: Better spans for synthesized token streams

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This commit is contained in:
Vadim Petrochenkov 2021-01-07 16:43:22 +03:00
parent b5c496de37
commit 0dab076358
9 changed files with 151 additions and 167 deletions
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10
compiler/rustc_ast_lowering/src/lib.rs
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@ -206,8 +206,7 @@ pub trait ResolverAstLowering {
) -> LocalDefId;
}
type NtToTokenstream =
fn(&Nonterminal, &ParseSess, Span, CanSynthesizeMissingTokens) -> TokenStream;
type NtToTokenstream = fn(&Nonterminal, &ParseSess, CanSynthesizeMissingTokens) -> TokenStream;
/// Context of `impl Trait` in code, which determines whether it is allowed in an HIR subtree,
/// and if so, what meaning it has.
@ -417,12 +416,7 @@ impl<'a> TokenStreamLowering<'a> {
fn lower_token(&mut self, token: Token) -> TokenStream {
match token.kind {
token::Interpolated(nt) => {
let tts = (self.nt_to_tokenstream)(
&nt,
self.parse_sess,
token.span,
self.synthesize_tokens,
);
let tts = (self.nt_to_tokenstream)(&nt, self.parse_sess, self.synthesize_tokens);
TokenTree::Delimited(
DelimSpan::from_single(token.span),
DelimToken::NoDelim,