9c4a716c12
This patch improves the preservation of qualifiers and loss of type sugar in TemplateNames. This problem is analogous to https://reviews.llvm.org/D112374 and this patch takes a very similar approach to that patch, except the impact here is much lesser. When a TemplateName was written bare, without qualifications, we wouldn't produce a QualifiedTemplate which could be used to disambiguate it from a Canonical TemplateName. This had effects in the TemplateName printer, which had workarounds to deal with this, and wouldn't print the TemplateName as-written in most situations. There are also some related fixes to help preserve this type sugar along the way into diagnostics, so that this patch can be properly tested. - Fix dropping the template keyword. - Fix type deduction to preserve sugar in TST TemplateNames.
53 lines
1.8 KiB
C++
53 lines
1.8 KiB
C++
//===----------------------------------------------------------------------===//
|
|
//
|
|
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
|
|
// See https://llvm.org/LICENSE.txt for license information.
|
|
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
// <stack>
|
|
// UNSUPPORTED: c++03, c++11, c++14
|
|
|
|
// template <class InputIterator, class Allocator = allocator<typename iterator_traits<InputIterator>::value_type>>
|
|
// vector(InputIterator, InputIterator, Allocator = Allocator())
|
|
// -> vector<typename iterator_traits<InputIterator>::value_type, Allocator>;
|
|
//
|
|
|
|
|
|
#include <stack>
|
|
#include <list>
|
|
#include <iterator>
|
|
#include <cassert>
|
|
#include <cstddef>
|
|
|
|
|
|
int main(int, char**)
|
|
{
|
|
// Test the explicit deduction guides
|
|
{
|
|
// stack(const Container&, const Alloc&);
|
|
// The '45' is not an allocator
|
|
std::stack stk(std::list<int>({1,2,3}), 45); // expected-error-re {{no viable constructor or deduction guide for deduction of template arguments of '{{(std::)?}}stack'}}
|
|
}
|
|
|
|
{
|
|
// stack(const stack&, const Alloc&);
|
|
// The '45' is not an allocator
|
|
std::stack<int> source;
|
|
std::stack stk(source, 45); // expected-error-re {{no viable constructor or deduction guide for deduction of template arguments of '{{(std::)?}}stack'}}
|
|
}
|
|
|
|
// Test the implicit deduction guides
|
|
{
|
|
// stack (allocator &)
|
|
std::stack stk((std::allocator<int>())); // expected-error-re {{no viable constructor or deduction guide for deduction of template arguments of '{{(std::)?}}stack'}}
|
|
// Note: The extra parens are necessary, since otherwise clang decides it is a function declaration.
|
|
// Also, we can't use {} instead of parens, because that constructs a
|
|
// stack<allocator<int>, allocator<allocator<int>>>
|
|
}
|
|
|
|
|
|
return 0;
|
|
}
|