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| author | Albert Larsan <74931857+albertlarsan68@users.noreply.github.com> | 2023-01-05 09:13:28 +0100 |
|---|---|---|
| committer | Albert Larsan <74931857+albertlarsan68@users.noreply.github.com> | 2023-01-11 09:32:08 +0000 |
| commit | cf2dff2b1e3fa55fa5415d524200070d0d7aacfe (patch) | |
| tree | 40a88d9a46aaf3e8870676eb2538378b75a263eb /tests/ui/macros/nonterminal-matching.rs | |
| parent | ca855e6e42787ecd062d81d53336fe6788ef51a9 (diff) | |
| download | rust-cf2dff2b1e3fa55fa5415d524200070d0d7aacfe.tar.gz rust-cf2dff2b1e3fa55fa5415d524200070d0d7aacfe.zip | |
Move /src/test to /tests
Diffstat (limited to 'tests/ui/macros/nonterminal-matching.rs')
| -rw-r--r-- | tests/ui/macros/nonterminal-matching.rs | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/tests/ui/macros/nonterminal-matching.rs b/tests/ui/macros/nonterminal-matching.rs new file mode 100644 index 00000000000..84fffe44d6a --- /dev/null +++ b/tests/ui/macros/nonterminal-matching.rs @@ -0,0 +1,26 @@ +// Check that we are refusing to match on complex nonterminals for which tokens are +// unavailable and we'd have to go through AST comparisons. + +#![feature(decl_macro)] + +macro simple_nonterminal($nt_ident: ident, $nt_lifetime: lifetime, $nt_tt: tt) { + macro n(a $nt_ident b $nt_lifetime c $nt_tt d) { + struct S; + } + + n!(a $nt_ident b $nt_lifetime c $nt_tt d); +} + +macro complex_nonterminal($nt_item: item) { + macro n(a $nt_item b) { + struct S; + } + + n!(a $nt_item b); //~ ERROR no rules expected the token `enum E {}` +} + +simple_nonterminal!(a, 'a, (x, y, z)); // OK + +complex_nonterminal!(enum E {}); + +fn main() {} |
