llvm-project/clang/test/SemaTemplate/typo-dependent-name.cpp

46 lines
921 B
C++

// RUN: %clang_cc1 -fsyntax-only -verify %s
using nullptr_t = decltype(nullptr);
template<typename T>
struct Base {
T inner;
};
int z;
template<typename T>
struct X : Base<T> {
static int z;
template<int U>
struct Inner {
};
bool f(T other) {
// A pair of comparisons; 'inner' is a dependent name so can't be assumed
// to be a template.
return this->inner < other > ::z;
}
};
void use_x(X<int> x) { x.f(0); }
template<typename T>
struct Y {
static int z;
template<int U>
struct Inner : Y { // expected-note {{declared here}}
};
bool f(T other) {
// We can determine that 'inner' does not exist at parse time, so can
// perform typo correction in this case.
return this->inner<other>::z; // expected-error {{no template named 'inner' in 'Y<T>'; did you mean 'Inner'?}}
}
};
struct Q { constexpr operator int() { return 0; } };
void use_y(Y<Q> x) { x.f(Q()); }