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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:02:58 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:02:58 +0000 |
commit | 698f8c2f01ea549d77d7dc3338a12e04c11057b9 (patch) | |
tree | 173a775858bd501c378080a10dca74132f05bc50 /src/test/ui/macros/ambiguity-legacy-vs-modern.rs | |
parent | Initial commit. (diff) | |
download | rustc-698f8c2f01ea549d77d7dc3338a12e04c11057b9.tar.xz rustc-698f8c2f01ea549d77d7dc3338a12e04c11057b9.zip |
Adding upstream version 1.64.0+dfsg1.upstream/1.64.0+dfsg1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/test/ui/macros/ambiguity-legacy-vs-modern.rs')
-rw-r--r-- | src/test/ui/macros/ambiguity-legacy-vs-modern.rs | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/src/test/ui/macros/ambiguity-legacy-vs-modern.rs b/src/test/ui/macros/ambiguity-legacy-vs-modern.rs new file mode 100644 index 000000000..216b9dd05 --- /dev/null +++ b/src/test/ui/macros/ambiguity-legacy-vs-modern.rs @@ -0,0 +1,46 @@ +// Some non-controversial subset of ambiguities "modern macro name" vs "macro_rules" +// is disambiguated to mitigate regressions from macro modularization. +// Scoping for `macro_rules` behaves like scoping for `let` at module level, in general. + +#![feature(decl_macro)] + +fn same_unnamed_mod() { + macro m() { 0 } + + macro_rules! m { () => (()) } + + m!() // OK +} + +fn nested_unnamed_mod() { + macro m() { 0 } + + { + macro_rules! m { () => (()) } + + m!() // OK + } +} + +fn nested_unnamed_mod_fail() { + macro_rules! m { () => (()) } + + { + macro m() { 0 } + + m!() //~ ERROR `m` is ambiguous + } +} + +fn nexted_named_mod_fail() { + macro m() { 0 } + + #[macro_use] + mod inner { + macro_rules! m { () => (()) } + } + + m!() //~ ERROR `m` is ambiguous +} + +fn main() {} |