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//===--- TemplateKinds.h - Enum values for C++ Template Kinds ---*- C++ -*-===//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
/// \file
/// Defines the clang::TemplateNameKind enum.
namespace clang {
/// Specifies the kind of template name that an identifier refers to.
/// Be careful when changing this: this enumeration is used in diagnostics.
enum TemplateNameKind {
/// The name does not refer to a template.
TNK_Non_template = 0,
/// The name refers to a function template or a set of overloaded
/// functions that includes at least one function template, or (in C++20)
/// refers to a set of non-template functions but is followed by a '<'.
/// The name refers to a template whose specialization produces a
/// type. The template itself could be a class template, template
/// template parameter, or template alias.
/// The name refers to a variable template whose specialization produces a
/// variable.
/// The name refers to a dependent template name:
/// \code
/// template<typename MetaFun, typename T1, typename T2> struct apply2 {
/// typedef typename MetaFun::template apply<T1, T2>::type type;
/// };
/// \endcode
/// Here, "apply" is a dependent template name within the typename
/// specifier in the typedef. "apply" is a nested template, and
/// whether the template name is assumed to refer to a type template or a
/// function template depends on the context in which the template
/// name occurs.
/// Lookup for the name failed, but we're assuming it was a template name
/// anyway. In C++20, this is mandatory in order to parse ADL-only function
/// template specialization calls.
/// The name refers to a concept.