2021-02-01 06:20:35 -06:00
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mod block;
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2021-02-09 10:22:57 -06:00
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use base_db::{fixture::WithFixture, SourceDatabase};
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2021-02-01 06:20:35 -06:00
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use expect_test::Expect;
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2020-10-23 12:27:04 -05:00
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2021-02-09 10:22:57 -06:00
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use crate::{test_db::TestDB, ModuleDefId};
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2020-10-23 12:27:04 -05:00
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use super::*;
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fn lower(ra_fixture: &str) -> Arc<Body> {
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2021-01-21 13:35:36 -06:00
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let db = crate::test_db::TestDB::with_files(ra_fixture);
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2020-10-23 12:27:04 -05:00
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let krate = db.crate_graph().iter().next().unwrap();
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let def_map = db.crate_def_map(krate);
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2021-01-21 13:35:36 -06:00
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let mut fn_def = None;
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'outer: for (_, module) in def_map.modules() {
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for decl in module.scope.declarations() {
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match decl {
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ModuleDefId::FunctionId(it) => {
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fn_def = Some(it);
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break 'outer;
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}
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_ => {}
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}
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}
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}
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db.body(fn_def.unwrap().into())
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2020-10-23 12:27:04 -05:00
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}
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fn check_diagnostics(ra_fixture: &str) {
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let db: TestDB = TestDB::with_files(ra_fixture);
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db.check_diagnostics();
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}
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2021-02-04 06:44:54 -06:00
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fn block_def_map_at(ra_fixture: &str) -> String {
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2021-02-01 06:20:35 -06:00
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let (db, position) = crate::test_db::TestDB::with_position(ra_fixture);
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2021-02-09 10:22:57 -06:00
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let module = db.module_at_position(position);
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module.def_map(&db).dump(&db)
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2021-02-01 06:20:35 -06:00
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}
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fn check_at(ra_fixture: &str, expect: Expect) {
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2021-02-04 06:44:54 -06:00
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let actual = block_def_map_at(ra_fixture);
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2021-02-01 06:20:35 -06:00
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expect.assert_eq(&actual);
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}
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2020-10-23 12:27:04 -05:00
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#[test]
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fn your_stack_belongs_to_me() {
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2021-03-08 14:19:44 -06:00
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cov_mark::check!(your_stack_belongs_to_me);
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2020-10-23 12:27:04 -05:00
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lower(
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"
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macro_rules! n_nuple {
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($e:tt) => ();
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($($rest:tt)*) => {{
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(n_nuple!($($rest)*)None,)
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}};
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}
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fn main() { n_nuple!(1,2,3); }
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",
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);
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}
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2021-01-21 13:35:36 -06:00
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#[test]
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fn macro_resolve() {
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// Regression test for a path resolution bug introduced with inner item handling.
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lower(
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r"
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macro_rules! vec {
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() => { () };
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($elem:expr; $n:expr) => { () };
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($($x:expr),+ $(,)?) => { () };
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}
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mod m {
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fn outer() {
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let _ = vec![FileSet::default(); self.len()];
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}
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}
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",
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);
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}
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2020-10-23 12:27:04 -05:00
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#[test]
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fn cfg_diagnostics() {
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check_diagnostics(
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r"
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fn f() {
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// The three g̶e̶n̶d̶e̶r̶s̶ statements:
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#[cfg(a)] fn f() {} // Item statement
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//^^^^^^^^^^^^^^^^^^^ code is inactive due to #[cfg] directives: a is disabled
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#[cfg(a)] {} // Expression statement
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//^^^^^^^^^^^^ code is inactive due to #[cfg] directives: a is disabled
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#[cfg(a)] let x = 0; // let statement
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//^^^^^^^^^^^^^^^^^^^^ code is inactive due to #[cfg] directives: a is disabled
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abc(#[cfg(a)] 0);
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//^^^^^^^^^^^ code is inactive due to #[cfg] directives: a is disabled
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let x = Struct {
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#[cfg(a)] f: 0,
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//^^^^^^^^^^^^^^ code is inactive due to #[cfg] directives: a is disabled
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};
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match () {
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() => (),
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#[cfg(a)] () => (),
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//^^^^^^^^^^^^^^^^^^ code is inactive due to #[cfg] directives: a is disabled
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}
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#[cfg(a)] 0 // Trailing expression of block
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//^^^^^^^^^^^ code is inactive due to #[cfg] directives: a is disabled
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}
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",
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);
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}
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2020-12-02 07:54:25 -06:00
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#[test]
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fn macro_diag_builtin() {
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check_diagnostics(
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r#"
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2020-12-02 10:00:48 -06:00
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#[rustc_builtin_macro]
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macro_rules! env {}
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#[rustc_builtin_macro]
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macro_rules! include {}
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2020-12-03 08:31:04 -06:00
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#[rustc_builtin_macro]
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macro_rules! compile_error {}
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2020-12-02 10:00:48 -06:00
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#[rustc_builtin_macro]
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macro_rules! format_args {
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() => {}
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}
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2020-12-02 07:54:25 -06:00
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fn f() {
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// Test a handful of built-in (eager) macros:
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include!(invalid);
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2020-12-02 10:00:48 -06:00
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//^^^^^^^^^^^^^^^^^ could not convert tokens
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2020-12-02 07:54:25 -06:00
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include!("does not exist");
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2021-03-17 15:56:09 -05:00
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//^^^^^^^^^^^^^^^^^^^^^^^^^^ failed to load file `does not exist`
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2020-12-02 07:54:25 -06:00
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env!(invalid);
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2020-12-02 10:00:48 -06:00
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//^^^^^^^^^^^^^ could not convert tokens
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2020-12-02 07:54:25 -06:00
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2020-12-02 10:03:18 -06:00
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env!("OUT_DIR");
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//^^^^^^^^^^^^^^^ `OUT_DIR` not set, enable "load out dirs from check" to fix
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2020-12-03 08:31:04 -06:00
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compile_error!("compile_error works");
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2020-12-03 12:07:37 -06:00
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//^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ compile_error works
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2020-12-03 08:31:04 -06:00
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2020-12-02 07:54:25 -06:00
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// Lazy:
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format_args!();
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2020-12-02 10:00:48 -06:00
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//^^^^^^^^^^^^^^ no rule matches input tokens
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2020-12-02 07:54:25 -06:00
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}
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"#,
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);
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}
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#[test]
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fn macro_rules_diag() {
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check_diagnostics(
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r#"
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macro_rules! m {
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() => {};
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}
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fn f() {
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m!();
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m!(hi);
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//^^^^^^ leftover tokens
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}
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"#,
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);
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}
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2020-12-08 10:17:30 -06:00
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2021-03-16 02:46:57 -05:00
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#[test]
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fn unresolved_macro_diag() {
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check_diagnostics(
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r#"
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fn f() {
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m!();
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//^^^^ unresolved macro call
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}
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"#,
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);
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}
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2020-12-08 10:17:30 -06:00
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#[test]
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fn dollar_crate_in_builtin_macro() {
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check_diagnostics(
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r#"
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#[macro_export]
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#[rustc_builtin_macro]
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macro_rules! format_args {}
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#[macro_export]
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macro_rules! arg {
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() => {}
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}
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#[macro_export]
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macro_rules! outer {
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() => {
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$crate::format_args!( "", $crate::arg!(1) )
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};
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}
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fn f() {
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outer!();
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//^^^^^^^^ leftover tokens
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}
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"#,
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)
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}
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