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Unrolled build for rust-lang#137544
Rollup merge of rust-lang#137544 - petrochenkov:deritest, r=fmease tests: Add regression test for derive token invalidation (rust-lang#81099) Closes rust-lang#81099.
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‎tests/ui/proc-macro/derive-cfg-nested-tokens.rs

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// A regression test for issue #81099.
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//@ check-pass
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//@ proc-macro:test-macros.rs
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#![feature(stmt_expr_attributes)]
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#![feature(proc_macro_hygiene)]
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#[macro_use]
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extern crate test_macros;
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#[derive(Clone, Copy)]
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struct S {
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// `print_args` runs twice
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// - on eagerly configured `S` (from `impl Copy`), only 11 should be printed
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// - on non-configured `S` (from `struct S`), both 10 and 11 should be printed
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field: [u8; #[print_attr] {
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#[cfg(FALSE)] { 10 }
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#[cfg(not(FALSE))] { 11 }
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}],
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}
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fn main() {}

‎tests/ui/proc-macro/derive-cfg-nested-tokens.stdout

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PRINT-ATTR INPUT (DISPLAY): { #[cfg(not(FALSE))] { 11 } }
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PRINT-ATTR INPUT (DEBUG): TokenStream [
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Group {
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delimiter: Brace,
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stream: TokenStream [
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Punct {
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ch: '#',
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spacing: Alone,
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span: #0 bytes(491..492),
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},
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Group {
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delimiter: Bracket,
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stream: TokenStream [
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Ident {
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ident: "cfg",
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span: #0 bytes(493..496),
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},
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Group {
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delimiter: Parenthesis,
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stream: TokenStream [
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Ident {
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ident: "not",
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span: #0 bytes(497..500),
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},
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Group {
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delimiter: Parenthesis,
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stream: TokenStream [
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Ident {
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ident: "FALSE",
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span: #0 bytes(501..506),
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},
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],
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span: #0 bytes(500..507),
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},
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],
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span: #0 bytes(496..508),
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},
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],
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span: #0 bytes(492..509),
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},
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Group {
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delimiter: Brace,
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stream: TokenStream [
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Literal {
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kind: Integer,
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symbol: "11",
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suffix: None,
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span: #0 bytes(513..515),
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},
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],
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span: #0 bytes(511..517),
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},
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],
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span: #0 bytes(452..523),
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},
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]
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PRINT-ATTR INPUT (DISPLAY): { #[cfg(FALSE)] { 10 } #[cfg(not(FALSE))] { 11 } }
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PRINT-ATTR INPUT (DEBUG): TokenStream [
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Group {
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delimiter: Brace,
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stream: TokenStream [
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Punct {
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ch: '#',
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spacing: Alone,
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span: #0 bytes(462..463),
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},
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Group {
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delimiter: Bracket,
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stream: TokenStream [
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Ident {
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ident: "cfg",
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span: #0 bytes(464..467),
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},
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Group {
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delimiter: Parenthesis,
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stream: TokenStream [
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Ident {
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ident: "FALSE",
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span: #0 bytes(468..473),
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},
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],
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span: #0 bytes(467..474),
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},
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],
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span: #0 bytes(463..475),
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},
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Group {
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delimiter: Brace,
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stream: TokenStream [
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Literal {
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kind: Integer,
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symbol: "10",
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suffix: None,
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span: #0 bytes(478..480),
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},
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],
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span: #0 bytes(476..482),
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},
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Punct {
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ch: '#',
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spacing: Alone,
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span: #0 bytes(491..492),
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},
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Group {
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delimiter: Bracket,
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stream: TokenStream [
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Ident {
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ident: "cfg",
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span: #0 bytes(493..496),
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},
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Group {
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delimiter: Parenthesis,
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stream: TokenStream [
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Ident {
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ident: "not",
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span: #0 bytes(497..500),
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},
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Group {
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delimiter: Parenthesis,
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stream: TokenStream [
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Ident {
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ident: "FALSE",
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span: #0 bytes(501..506),
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},
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],
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span: #0 bytes(500..507),
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},
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],
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span: #0 bytes(496..508),
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},
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],
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span: #0 bytes(492..509),
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},
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Group {
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delimiter: Brace,
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stream: TokenStream [
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Literal {
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kind: Integer,
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symbol: "11",
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suffix: None,
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span: #0 bytes(513..515),
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},
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],
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span: #0 bytes(511..517),
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},
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],
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span: #0 bytes(452..523),
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},
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]

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