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The error-bit was missing, if a DeclRefExpr (which refers to a VarDecl with a contains-errors initializer). It could cause different violations in clang -- the DeclRefExpr is value-dependent, but not contains-errors, `ABC<DeclRefExpr>` could produce a non-error and non-dependent type in non-template context, which will lead to crashes in constexpr evaluation. Reviewed By: sammccall Differential Revision: https://reviews.llvm.org/D86048
30 lines
946 B
C++
30 lines
946 B
C++
// RUN: %clang_cc1 -verify -fsyntax-only -fno-recovery-ast %s
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// RUN: %clang_cc1 -verify -fsyntax-only -frecovery-ast %s
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void foo(); // expected-note 2{{requires 0 arguments}}
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class X {
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decltype(foo(42)) invalid; // expected-error {{no matching function}}
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};
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// Should be able to evaluate sizeof without crashing.
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static_assert(sizeof(X) == 1, "No valid members");
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class Y {
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typeof(foo(42)) invalid; // expected-error {{no matching function}}
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};
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// Should be able to evaluate sizeof without crashing.
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static_assert(sizeof(Y) == 1, "No valid members");
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class Z {
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int array[sizeof(invalid())]; // expected-error {{use of undeclared identifier}}
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};
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// Should be able to evaluate sizeof without crashing.
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static_assert(sizeof(Z) == 1, "No valid members");
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constexpr int N = undef; // expected-error {{use of undeclared identifier}}
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template<int a>
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class ABC {};
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class T {
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ABC<N> abc;
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};
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static_assert(sizeof(T) == 1, "No valid members");
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