58f831d2b3
Reliably mark the loop variable declaration in a range for as having an
invalid initializer if anything goes wrong building the initializer. We
previously based this determination on whether an error was emitted,
which is not a reliable signal due to error suppression (during error
recovery etc).
Also, properly mark the variable as having initializer errors rather
than simply marking it invalid. This is necessary to mark any structured
bindings as invalid too.
This generalizes the previous fix in
936ec89e91.
107 lines
2.1 KiB
C++
107 lines
2.1 KiB
C++
// RUN: %clang_cc1 -std=c++11 -verify %s
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// rdar://12240916 stack overflow.
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namespace rdar12240916 {
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struct S2 {
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S2(const S2&);
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S2();
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};
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struct S { // expected-note {{not complete}}
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S x; // expected-error {{incomplete type}}
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S2 y;
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};
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S foo() {
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S s;
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return s;
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}
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struct S3; // expected-note {{forward declaration}}
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struct S4 {
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S3 x; // expected-error {{incomplete type}}
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S2 y;
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};
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struct S3 {
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S4 x;
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S2 y;
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};
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S4 foo2() {
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S4 s;
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return s;
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}
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}
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// rdar://12542261 stack overflow.
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namespace rdar12542261 {
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template <class _Tp>
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struct check_complete
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{
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static_assert(sizeof(_Tp) > 0, "Type must be complete.");
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};
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template<class _Rp>
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class function // expected-note 2 {{candidate}}
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{
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public:
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template<class _Fp>
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function(_Fp, typename check_complete<_Fp>::type* = 0); // expected-note {{candidate}}
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};
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void foobar()
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{
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auto LeftCanvas = new Canvas(); // expected-error {{unknown type name}}
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function<void()> m_OnChange = [&, LeftCanvas]() { }; // expected-error {{no viable conversion}}
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}
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}
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namespace b6981007 {
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struct S {}; // expected-note 3{{candidate}}
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void f() {
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S s(1, 2, 3); // expected-error {{no matching}}
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for (auto x : s) { // expected-error {{invalid range expression of}}
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// We used to attempt to evaluate the initializer of this variable,
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// and crash because it has an undeduced type.
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const int &n(x);
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constexpr int k = sizeof(x);
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}
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}
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}
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namespace incorrect_auto_type_deduction_for_typo {
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struct S {
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template <typename T> S(T t) {
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(void)sizeof(t);
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(void)new auto(t);
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}
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};
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void Foo(S);
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void test(int some_number) { // expected-note {{'some_number' declared here}}
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auto x = sum_number; // expected-error {{use of undeclared identifier 'sum_number'; did you mean 'some_number'?}}
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auto lambda = [x] {};
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Foo(lambda);
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}
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}
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namespace pr29091 {
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struct X{ X(const X &x); };
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struct Y: X { using X::X; };
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bool foo() { return __has_nothrow_constructor(Y); }
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bool bar() { return __has_nothrow_copy(Y); }
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struct A { template <typename T> A(); };
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struct B : A { using A::A; };
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bool baz() { return __has_nothrow_constructor(B); }
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bool qux() { return __has_nothrow_copy(B); }
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}
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