| 1 | // RUN: %clang_cc1 -verify %s |
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| 2 | // RUN: %clang_cc1 -verify %s -std=c++98 |
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| 3 | // RUN: %clang_cc1 -verify %s -std=c++11 |
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| 4 | // RUN: %clang_cc1 -verify %s -std=c++1z |
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| 5 | |
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| 6 | // PR25946 |
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| 7 | // We had an off-by-one error in an assertion when annotating A<int> below. Our |
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| 8 | // error recovery checks if A<int> is a constructor declarator, and opens a |
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| 9 | // TentativeParsingAction. Then we attempt to annotate the token at the exact |
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| 10 | // position that we want to possibly backtrack to, and this used to crash. |
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| 11 | |
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| 12 | template <typename T> class A {}; |
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| 13 | |
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| 14 | // expected-error@+1 {{expected '{' after base class list}} |
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| 15 | template <typename T> class B : T // not ',' or '{' |
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| 16 | #if __cplusplus < 201103L |
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| 17 | // expected-error@+8 {{expected ';' after top level declarator}} |
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| 18 | #endif |
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| 19 | #if __cplusplus <= 201402L |
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| 20 | // expected-error@+5 {{C++ requires a type specifier for all declarations}} |
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| 21 | #else |
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| 22 | // expected-error@+3 {{expected unqualified-id}} |
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| 23 | #endif |
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| 24 | // expected-error@+1 {{expected ';' after class}} |
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| 25 | A<int> { |
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| 26 | }; |
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| 27 | |
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