expand: Stop un-interpolating NtIdent
s before passing them to built-in macros
This was a big hack, and built-in macros should be able to deal with `NtIdents` in the input by themselves like any other parser code.
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@ -368,7 +368,7 @@ fn parse_reg<'a>(
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explicit_reg: &mut bool,
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) -> Result<ast::InlineAsmRegOrRegClass, DiagnosticBuilder<'a>> {
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p.expect(&token::OpenDelim(token::DelimToken::Paren))?;
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let result = match p.token.kind {
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let result = match p.token.uninterpolate().kind {
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token::Ident(name, false) => ast::InlineAsmRegOrRegClass::RegClass(name),
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token::Literal(token::Lit { kind: token::LitKind::Str, symbol, suffix: _ }) => {
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*explicit_reg = true;
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@ -27,15 +27,15 @@ pub fn expand_concat_idents<'cx>(
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}
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}
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} else {
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match e {
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TokenTree::Token(Token { kind: token::Ident(name, _), .. }) => {
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res_str.push_str(&name.as_str())
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}
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_ => {
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cx.span_err(sp, "concat_idents! requires ident args.");
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return DummyResult::any(sp);
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if let TokenTree::Token(token) = e {
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if let Some((ident, _)) = token.ident() {
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res_str.push_str(&ident.name.as_str());
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continue;
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}
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}
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cx.span_err(sp, "concat_idents! requires ident args.");
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return DummyResult::any(sp);
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}
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}
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@ -1,10 +1,9 @@
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use crate::expand::{self, AstFragment, Invocation};
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use crate::module::DirectoryOwnership;
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use rustc_ast::mut_visit::{self, MutVisitor};
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use rustc_ast::ptr::P;
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use rustc_ast::token;
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use rustc_ast::tokenstream::{self, TokenStream};
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use rustc_ast::tokenstream::TokenStream;
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use rustc_ast::visit::{AssocCtxt, Visitor};
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use rustc_ast::{self as ast, Attribute, NodeId, PatKind};
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use rustc_attr::{self as attr, Deprecation, HasAttrs, Stability};
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@ -364,30 +363,8 @@ fn expand<'cx>(
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&self,
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ecx: &'cx mut ExtCtxt<'_>,
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span: Span,
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mut input: TokenStream,
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input: TokenStream,
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) -> Box<dyn MacResult + 'cx> {
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struct AvoidInterpolatedIdents;
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impl MutVisitor for AvoidInterpolatedIdents {
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fn visit_tt(&mut self, tt: &mut tokenstream::TokenTree) {
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if let tokenstream::TokenTree::Token(token) = tt {
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if let token::Interpolated(nt) = &token.kind {
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if let token::NtIdent(ident, is_raw) = **nt {
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*tt = tokenstream::TokenTree::token(
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token::Ident(ident.name, is_raw),
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ident.span,
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);
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}
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}
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}
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mut_visit::noop_visit_tt(tt, self)
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}
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fn visit_mac(&mut self, mac: &mut ast::MacCall) {
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mut_visit::noop_visit_mac(mac, self)
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}
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}
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AvoidInterpolatedIdents.visit_tts(&mut input);
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(*self)(ecx, span, input)
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}
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}
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