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Parse cpp_function_template

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This commit is contained in:
Jonathan Müller 2017-03-25 14:34:04 +01:00
commit eeb48f1df5
18 changed files with 397 additions and 60 deletions
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5
src/cpp_entity.cpp
View file

@ -4,12 +4,17 @@
#include <cppast/cpp_entity.hpp>
#include <cppast/cpp_entity_kind.hpp>
using namespace cppast;
std::string cppast::full_name(const cpp_entity& e)
{
if (e.name().empty())
return "";
else if (is_parameter(e.kind()))
// parameters don't have a full name
return e.name();
std::string scopes;

89
src/cpp_entity_kind.cpp
View file

@ -137,6 +137,95 @@ bool cppast::is_type(cpp_entity_kind kind) noexcept
return false;
}
bool cppast::is_function(cpp_entity_kind kind) noexcept
{
switch (kind)
{
case cpp_entity_kind::function_t:
case cpp_entity_kind::member_function_t:
case cpp_entity_kind::conversion_op_t:
case cpp_entity_kind::constructor_t:
case cpp_entity_kind::destructor_t:
return true;
case cpp_entity_kind::file_t:
case cpp_entity_kind::macro_definition_t:
case cpp_entity_kind::include_directive_t:
case cpp_entity_kind::language_linkage_t:
case cpp_entity_kind::namespace_t:
case cpp_entity_kind::namespace_alias_t:
case cpp_entity_kind::using_directive_t:
case cpp_entity_kind::using_declaration_t:
case cpp_entity_kind::type_alias_t:
case cpp_entity_kind::enum_t:
case cpp_entity_kind::enum_value_t:
case cpp_entity_kind::class_t:
case cpp_entity_kind::access_specifier_t:
case cpp_entity_kind::base_class_t:
case cpp_entity_kind::variable_t:
case cpp_entity_kind::member_variable_t:
case cpp_entity_kind::bitfield_t:
case cpp_entity_kind::function_parameter_t:
case cpp_entity_kind::template_type_parameter_t:
case cpp_entity_kind::non_type_template_parameter_t:
case cpp_entity_kind::template_template_parameter_t:
case cpp_entity_kind::alias_template_t:
case cpp_entity_kind::variable_template_t:
case cpp_entity_kind::function_template_t:
case cpp_entity_kind::function_template_specialization_t:
case cpp_entity_kind::class_template_t:
case cpp_entity_kind::class_template_specialization_t:
case cpp_entity_kind::count:
break;
}
return false;
}
bool cppast::is_parameter(cpp_entity_kind kind) noexcept
{
switch (kind)
{
case cpp_entity_kind::function_parameter_t:
case cpp_entity_kind::template_type_parameter_t:
case cpp_entity_kind::non_type_template_parameter_t:
case cpp_entity_kind::template_template_parameter_t:
return true;
case cpp_entity_kind::file_t:
case cpp_entity_kind::macro_definition_t:
case cpp_entity_kind::include_directive_t:
case cpp_entity_kind::language_linkage_t:
case cpp_entity_kind::namespace_t:
case cpp_entity_kind::namespace_alias_t:
case cpp_entity_kind::using_directive_t:
case cpp_entity_kind::using_declaration_t:
case cpp_entity_kind::type_alias_t:
case cpp_entity_kind::enum_t:
case cpp_entity_kind::enum_value_t:
case cpp_entity_kind::class_t:
case cpp_entity_kind::access_specifier_t:
case cpp_entity_kind::base_class_t:
case cpp_entity_kind::variable_t:
case cpp_entity_kind::member_variable_t:
case cpp_entity_kind::bitfield_t:
case cpp_entity_kind::function_t:
case cpp_entity_kind::member_function_t:
case cpp_entity_kind::conversion_op_t:
case cpp_entity_kind::constructor_t:
case cpp_entity_kind::destructor_t:
case cpp_entity_kind::alias_template_t:
case cpp_entity_kind::variable_template_t:
case cpp_entity_kind::function_template_t:
case cpp_entity_kind::function_template_specialization_t:
case cpp_entity_kind::class_template_t:
case cpp_entity_kind::class_template_specialization_t:
case cpp_entity_kind::count:
break;
}
return false;
}
bool cppast::is_template(cpp_entity_kind kind) noexcept
{
switch (kind)

7
src/cpp_function_template.cpp
View file

@ -8,11 +8,16 @@
using namespace cppast;
cpp_entity_kind cpp_function_template::do_get_entity_kind() const noexcept
cpp_entity_kind cpp_function_template::kind() noexcept
{
return cpp_entity_kind::function_template_t;
}
cpp_entity_kind cpp_function_template::do_get_entity_kind() const noexcept
{
return kind();
}
cpp_entity_kind cpp_function_template_specialization::do_get_entity_kind() const noexcept
{
return cpp_entity_kind::function_template_specialization_t;

14
src/cpp_template_parameter.cpp
View file

@ -57,17 +57,27 @@ std::unique_ptr<cpp_non_type_template_parameter> cpp_non_type_template_parameter
return result;
}
cpp_entity_kind cpp_non_type_template_parameter::do_get_entity_kind() const noexcept
cpp_entity_kind cpp_non_type_template_parameter::kind() noexcept
{
return cpp_entity_kind::non_type_template_parameter_t;
}
cpp_entity_kind cpp_non_type_template_parameter::do_get_entity_kind() const noexcept
{
return kind();
}
bool detail::cpp_template_ref_predicate::operator()(const cpp_entity& e)
{
return is_template(e.kind()) || e.kind() == cpp_entity_kind::template_template_parameter_t;
}
cpp_entity_kind cpp_template_template_parameter::do_get_entity_kind() const noexcept
cpp_entity_kind cpp_template_template_parameter::kind() noexcept
{
return cpp_entity_kind::template_template_parameter_t;
}
cpp_entity_kind cpp_template_template_parameter::do_get_entity_kind() const noexcept
{
return kind();
}

43
src/libclang/function_parser.cpp
View file

@ -20,8 +20,10 @@ namespace
std::unique_ptr<cpp_expression> default_value;
detail::visit_children(cur, [&](const CXCursor& child) {
DEBUG_ASSERT(clang_isExpression(child.kind) && !default_value,
detail::parse_error_handler{}, child,
if (!clang_isExpression(clang_getCursorKind(child)))
return;
DEBUG_ASSERT(!default_value, detail::parse_error_handler{}, child,
"unexpected child cursor of function parameter");
default_value = detail::parse_expression(context, child);
});
@ -281,6 +283,7 @@ namespace
detail::parse_type(context, cur,
clang_getCursorResultType(cur)));
context.comments.match(builder.get(), cur);
add_parameters(context, builder, cur);
if (clang_Cursor_isVariadic(cur))
builder.is_variadic();
@ -301,21 +304,28 @@ namespace
if (suffix.noexcept_condition)
builder.noexcept_condition(std::move(suffix.noexcept_condition));
return builder.finish(*context.idx, detail::get_entity_id(cur), suffix.body_kind);
if (clang_getTemplateCursorKind(cur) == CXCursor_NoDeclFound)
return builder.finish(*context.idx, detail::get_entity_id(cur), suffix.body_kind);
else
return builder.finish(suffix.body_kind);
}
}
std::unique_ptr<cpp_entity> detail::parse_cpp_function(const detail::parse_context& context,
const CXCursor& cur)
{
DEBUG_ASSERT(clang_getCursorKind(cur) == CXCursor_FunctionDecl, detail::assert_handler{});
DEBUG_ASSERT(clang_getCursorKind(cur) == CXCursor_FunctionDecl
|| clang_getTemplateCursorKind(cur) == CXCursor_FunctionDecl,
detail::assert_handler{});
return parse_cpp_function_impl(context, cur);
}
std::unique_ptr<cpp_entity> detail::try_parse_static_cpp_function(
const detail::parse_context& context, const CXCursor& cur)
{
DEBUG_ASSERT(clang_getCursorKind(cur) == CXCursor_CXXMethod, detail::assert_handler{});
DEBUG_ASSERT(clang_getCursorKind(cur) == CXCursor_CXXMethod
|| clang_getTemplateCursorKind(cur) == CXCursor_CXXMethod,
detail::assert_handler{});
if (clang_CXXMethod_isStatic(cur))
return parse_cpp_function_impl(context, cur);
return nullptr;
@ -410,7 +420,9 @@ namespace
std::unique_ptr<cpp_entity> detail::parse_cpp_member_function(const detail::parse_context& context,
const CXCursor& cur)
{
DEBUG_ASSERT(clang_getCursorKind(cur) == CXCursor_CXXMethod, detail::assert_handler{});
DEBUG_ASSERT(clang_getCursorKind(cur) == CXCursor_CXXMethod
|| clang_getTemplateCursorKind(cur) == CXCursor_CXXMethod,
detail::assert_handler{});
auto name = detail::get_cursor_name(cur);
cpp_member_function::builder builder(name.c_str(),
@ -435,9 +447,14 @@ std::unique_ptr<cpp_entity> detail::parse_cpp_member_function(const detail::pars
std::unique_ptr<cpp_entity> detail::parse_cpp_conversion_op(const detail::parse_context& context,
const CXCursor& cur)
{
DEBUG_ASSERT(clang_getCursorKind(cur) == CXCursor_ConversionFunction, detail::assert_handler{});
cpp_conversion_op::builder builder(
detail::parse_type(context, cur, clang_getCursorResultType(cur)));
DEBUG_ASSERT(clang_getCursorKind(cur) == CXCursor_ConversionFunction
|| clang_getTemplateCursorKind(cur) == CXCursor_ConversionFunction,
detail::assert_handler{});
auto type = clang_getCursorResultType(cur);
cpp_conversion_op::builder builder(std::string("operator ")
+ cxstring(clang_getTypeSpelling(type)).c_str(),
detail::parse_type(context, cur, type));
context.comments.match(builder.get(), cur);
detail::tokenizer tokenizer(context.tu, context.file, cur);
@ -455,7 +472,7 @@ std::unique_ptr<cpp_entity> detail::parse_cpp_conversion_op(const detail::parse_
else if (detail::skip_if(stream, "explicit"))
builder.is_explicit();
else
DEBUG_UNREACHABLE(detail::parse_error_handler{}, cur, "unexpected token");
stream.bump();
}
// heuristic to find arguments tokens
@ -485,7 +502,9 @@ std::unique_ptr<cpp_entity> detail::parse_cpp_conversion_op(const detail::parse_
std::unique_ptr<cpp_entity> detail::parse_cpp_constructor(const detail::parse_context& context,
const CXCursor& cur)
{
DEBUG_ASSERT(clang_getCursorKind(cur) == CXCursor_Constructor, detail::assert_handler{});
DEBUG_ASSERT(clang_getCursorKind(cur) == CXCursor_Constructor
|| clang_getTemplateCursorKind(cur) == CXCursor_Constructor,
detail::assert_handler{});
auto name = detail::get_cursor_name(cur);
cpp_constructor::builder builder(name.c_str());
@ -505,7 +524,7 @@ std::unique_ptr<cpp_entity> detail::parse_cpp_constructor(const detail::parse_co
else if (detail::skip_if(stream, "explicit"))
builder.is_explicit();
else
DEBUG_UNREACHABLE(detail::parse_error_handler{}, cur, "unexpected token");
stream.bump();
}
skip_parameters(stream);

9
src/libclang/parse_functions.cpp
View file

@ -22,6 +22,9 @@ detail::cxstring detail::get_cursor_name(const CXCursor& cur)
cpp_storage_class_specifiers detail::get_storage_class(const CXCursor& cur)
{
if (clang_getTemplateCursorKind(cur) != CXCursor_NoDeclFound)
return cpp_storage_class_none;
switch (clang_Cursor_getStorageClass(cur))
{
case CX_SC_Invalid:
@ -42,11 +45,11 @@ cpp_storage_class_specifiers detail::get_storage_class(const CXCursor& cur)
case CX_SC_PrivateExtern:
case CX_SC_OpenCLWorkGroupLocal:
// non-exposed storage classes
return cpp_storage_class_auto;
return cpp_storage_class_none;
}
DEBUG_UNREACHABLE(detail::parse_error_handler{}, cur, "unexpected storage class");
return cpp_storage_class_auto;
return cpp_storage_class_none;
}
void detail::comment_context::match(cpp_entity& e, const CXCursor& cur) const
@ -120,6 +123,8 @@ std::unique_ptr<cpp_entity> detail::parse_entity(const detail::parse_context& co
case CXCursor_TypeAliasTemplateDecl:
return parse_cpp_alias_template(context, cur);
case CXCursor_FunctionTemplate:
return parse_cpp_function_template(context, cur);
default:
break;

2
src/libclang/parse_functions.hpp
View file

@ -127,6 +127,8 @@ namespace cppast
std::unique_ptr<cpp_entity> parse_cpp_alias_template(const parse_context& context,
const CXCursor& cur);
std::unique_ptr<cpp_entity> parse_cpp_function_template(const parse_context& context,
const CXCursor& cur);
// as_template: true, iff currently parsing a template
std::unique_ptr<cpp_entity> parse_entity(

56
src/libclang/template_parser.cpp
View file

@ -3,6 +3,9 @@
// found in the top-level directory of this distribution.
#include <cppast/cpp_alias_template.hpp>
#include <cppast/cpp_function_template.hpp>
#include <cppast/cpp_entity_kind.hpp>
#include "libclang_visitor.hpp"
#include "parse_functions.hpp"
@ -11,9 +14,9 @@ using namespace cppast;
namespace
{
template <typename TemplateT, typename EntityT>
template <typename TemplateT, typename EntityT, typename Predicate>
type_safe::optional<typename TemplateT::builder> get_builder(
const detail::parse_context& context, const CXCursor& cur)
const detail::parse_context& context, const CXCursor& cur, Predicate p)
{
// we need the actual entity first, then the parameters
// so two visit calls are required
@ -34,7 +37,7 @@ namespace
auto entity = detail::parse_entity(context, result, cur);
if (!entity)
return type_safe::nullopt;
DEBUG_ASSERT(entity->kind() == EntityT::kind(), detail::parse_error_handler{}, cur,
DEBUG_ASSERT(p(entity->kind()), detail::parse_error_handler{}, cur,
"wrong child of template");
return typename TemplateT::builder(
std::unique_ptr<EntityT>(static_cast<EntityT*>(entity.release())));
@ -206,10 +209,55 @@ std::unique_ptr<cpp_entity> detail::parse_cpp_alias_template(const detail::parse
{
DEBUG_ASSERT(clang_getCursorKind(cur) == CXCursor_TypeAliasTemplateDecl,
detail::assert_handler{});
auto builder = get_builder<cpp_alias_template, cpp_type_alias>(context, cur);
auto builder =
get_builder<cpp_alias_template, cpp_type_alias>(context, cur, [](cpp_entity_kind k) {
return k == cpp_entity_kind::type_alias_t;
});
if (!builder)
return nullptr;
context.comments.match(builder.value().get(), cur);
parse_parameters(builder.value(), context, cur);
return builder.value().finish(*context.idx, detail::get_entity_id(cur));
}
std::unique_ptr<cpp_entity> detail::parse_cpp_function_template(
const detail::parse_context& context, const CXCursor& cur)
{
DEBUG_ASSERT(clang_getCursorKind(cur) == CXCursor_FunctionTemplate, detail::assert_handler{});
std::unique_ptr<cpp_entity> func;
switch (clang_getTemplateCursorKind(cur))
{
case CXCursor_FunctionDecl:
func = detail::parse_cpp_function(context, cur);
break;
case CXCursor_CXXMethod:
if (auto sfunc = detail::try_parse_static_cpp_function(context, cur))
func = std::move(sfunc);
else
func = detail::parse_cpp_member_function(context, cur);
break;
case CXCursor_ConversionFunction:
func = detail::parse_cpp_conversion_op(context, cur);
break;
case CXCursor_Constructor:
func = detail::parse_cpp_constructor(context, cur);
break;
default:
DEBUG_UNREACHABLE(detail::parse_error_handler{}, cur, "unexpected template cursor kind");
}
if (!func)
return nullptr;
// steal comment
auto comment = type_safe::copy(func->comment());
func->set_comment(type_safe::nullopt);
cpp_function_template::builder builder(
std::unique_ptr<cpp_function_base>(static_cast<cpp_function_base*>(func.release())));
builder.get().set_comment(std::move(comment));
parse_parameters(builder, context, cur);
return builder.finish(*context.idx, detail::get_entity_id(cur));
}