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Added basic friendship relationship handling

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This commit is contained in:
Bartek Kryza
2021-03-26 23:12:50 +01:00
parent a8bab3931e
commit 130ab4dc11
5 changed files with 366 additions and 264 deletions
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1
.clang-format
View File

@@ -9,3 +9,4 @@ PointerBindsToType: false
Standard: Cpp11
BreakBeforeBinaryOperators: false
BreakBeforeBraces: Stroustrup
IndentCaseLabels: false

150
src/uml/class_diagram_visitor.cc
View File

@@ -21,6 +21,7 @@
#include <cppast/cpp_class_template.hpp>
#include <cppast/cpp_entity_kind.hpp>
#include <cppast/cpp_enum.hpp>
#include <cppast/cpp_friend.hpp>
#include <cppast/cpp_member_function.hpp>
#include <cppast/cpp_member_variable.hpp>
#include <cppast/cpp_template.hpp>
@@ -67,12 +68,16 @@ scope_t cpp_access_specifier_to_scope(cppast::cpp_access_specifier_kind as)
void tu_visitor::operator()(const cppast::cpp_entity &file)
{
std::string prefix;
// visit each entity in the file
cppast::visit(file,
[&, this](const cppast::cpp_entity &e, cppast::visitor_info info) {
if (info.is_old_entity()) {
spdlog::debug(
"Entity {} already visited - skipping...", e.name());
return;
}
if (e.kind() == cppast::cpp_entity_kind::class_t) {
spdlog::debug("{}'{}' - {}", prefix, cx::util::full_name(e),
spdlog::debug("'{}' - {}", cx::util::full_name(e),
cppast::to_string(e.kind()));
auto &cls = static_cast<const cppast::cpp_class &>(e);
@@ -81,7 +86,7 @@ void tu_visitor::operator()(const cppast::cpp_entity &file)
process_class_declaration(cls);
}
else if (e.kind() == cppast::cpp_entity_kind::enum_t) {
spdlog::debug("{}'{}' - {}", prefix, cx::util::full_name(e),
spdlog::debug("'{}' - {}", cx::util::full_name(e),
cppast::to_string(e.kind()));
auto &enm = static_cast<const cppast::cpp_enum &>(e);
@@ -163,6 +168,28 @@ void tu_visitor::process_class_declaration(const cppast::cpp_class &cls)
auto &mc = static_cast<const cppast::cpp_destructor &>(child);
process_destructor(mc, c, last_access_specifier);
}
else if (child.kind() == cppast::cpp_entity_kind::friend_t) {
auto &fr = static_cast<const cppast::cpp_friend &>(child);
spdlog::debug("Found friend declaration: {}, {}",
child.name(),
child.scope_name() ? child.scope_name().value().name()
: "<no-scope>");
process_friend(fr, c);
}
else if (cppast::is_friended(child)) {
auto &fr =
static_cast<const cppast::cpp_friend &>(child.parent().value());
spdlog::debug("Found friend template: {}", child.name());
process_friend(fr, c);
}
else {
spdlog::debug("Found some other class child: {} ({})",
child.name(), cppast::to_string(child.kind()));
}
}
// Process class bases
@@ -170,6 +197,7 @@ void tu_visitor::process_class_declaration(const cppast::cpp_class &cls)
class_parent cp;
cp.name = clanguml::cx::util::fully_prefixed(base);
cp.is_virtual = base.is_virtual();
switch (base.access_specifier()) {
case cppast::cpp_access_specifier_kind::cpp_private:
cp.access = class_parent::access_t::kPrivate;
@@ -222,15 +250,22 @@ void tu_visitor::process_class_declaration(const cppast::cpp_class &cls)
class_relationship containment;
containment.type = relationship_t::kContainment;
containment.destination = cx::util::full_name(cur.value());
c.relationships.emplace_back(std::move(containment));
c.add_relationship(std::move(containment));
spdlog::debug("Added relationship {} +-- {}",
c.full_name(ctx.config.using_namespace),
containment.destination);
break;
}
}
cls.set_user_data(strdup(c.full_name(ctx.config.using_namespace).c_str()));
spdlog::debug("Setting user data for class {}, {}",
static_cast<const char *>(cls.user_data()),
fmt::ptr(reinterpret_cast<const void *>(&cls)));
c.usr = c.full_name(ctx.config.using_namespace);
ctx.d.add_class(std::move(c));
@@ -260,7 +295,7 @@ void tu_visitor::process_field(const cppast::cpp_member_variable &mv, class_ &c,
.get());
spdlog::debug(
"MAYBE BUILDING INSTANTIATION FOR: {}", primary_template_name);
"Maybe building instantiation for: {}", primary_template_name);
if (ctx.config.should_include(primary_template_name)) {
class_ tinst = build_template_instantiation(
@@ -412,8 +447,7 @@ void tu_visitor::process_function_parameter(
switch (dv.value().kind()) {
case cppast::cpp_expression_kind::literal_t:
mp.default_value =
static_cast<const cppast::cpp_literal_expression &>(
dv.value())
static_cast<const cppast::cpp_literal_expression &>(dv.value())
.value();
break;
case cppast::cpp_expression_kind::unexposed_t:
@@ -466,6 +500,66 @@ void tu_visitor::process_template_template_parameter(
parent.templates.emplace_back(std::move(ct));
}
void tu_visitor::process_friend(const cppast::cpp_friend &f, class_ &parent)
{
class_relationship r;
r.type = relationship_t::kFriendship;
r.label = "<<friend>>";
if (f.type()) {
auto name = cppast::to_string(f.type().value());
if (!ctx.config.should_include(name))
return;
spdlog::debug("Type friend declaration {}", name);
r.destination = name;
}
else if (f.entity()) {
std::string name{};
if (f.entity().value().kind() ==
cppast::cpp_entity_kind::class_template_t) {
const auto &ft = static_cast<const cppast::cpp_class_template &>(
f.entity().value());
const auto &class_ = ft.class_();
auto scope = cppast::cpp_scope_name(type_safe::ref(ft));
if (ft.class_().user_data() == nullptr) {
spdlog::warn(
"Empty user data in friend class template: {}, {}, {}",
ft.name(),
fmt::ptr(reinterpret_cast<const void *>(&ft.class_())),
scope.name());
return;
}
spdlog::debug("Entity friend declaration {} ({})", name,
static_cast<const char *>(ft.user_data()));
name = static_cast<const char *>(ft.user_data());
}
else {
spdlog::debug("Entity friend declaration {} ({},{})", name,
cppast::is_templated(f.entity().value()),
cppast::to_string(f.entity().value().kind()));
name = cx::util::full_name(f.entity().value());
}
if (!ctx.config.should_include(name))
return;
r.destination = name;
}
else {
spdlog::debug("Friend declaration points neither to type or entity.");
return;
}
parent.add_relationship(std::move(r));
}
void tu_visitor::find_relationships(const cppast::cpp_type &t_,
std::vector<std::pair<std::string, relationship_t>> &relationships,
relationship_t relationship_hint)
@@ -499,6 +593,9 @@ void tu_visitor::find_relationships(const cppast::cpp_type &t_,
const auto &args = tinst.arguments().value();
// Try to match common containers
// TODO: Refactor to a separate class with configurable
// container list
if (name.find("std::unique_ptr") == 0) {
find_relationships(args[0u].type().value(), relationships,
relationship_t::kComposition);
@@ -524,12 +621,10 @@ void tu_visitor::find_relationships(const cppast::cpp_type &t_,
}
else if (t_.kind() == cppast::cpp_type_kind::pointer_t) {
auto &p = static_cast<const cppast::cpp_pointer_type &>(t_);
spdlog::debug("TEST2");
find_relationships(
p.pointee(), relationships, relationship_t::kAssociation);
}
else if (t_.kind() == cppast::cpp_type_kind::reference_t) {
spdlog::debug("TEST3");
auto &r = static_cast<const cppast::cpp_reference_type &>(t_);
auto rt = relationship_t::kAssociation;
if (r.reference_kind() == cppast::cpp_reference::cpp_ref_rvalue) {
@@ -542,10 +637,12 @@ void tu_visitor::find_relationships(const cppast::cpp_type &t_,
if (ctx.config.should_include(cppast::to_string(t_.canonical())))
if (relationship_type != relationship_t::kNone)
relationships.emplace_back(
cppast::to_string(cppast::remove_cv(t_)), relationship_type);
cppast::to_string(cppast::remove_cv(t_)),
relationship_type);
else
relationships.emplace_back(
cppast::to_string(cppast::remove_cv(t_)), relationship_t::kComposition);
cppast::to_string(cppast::remove_cv(t_)),
relationship_t::kComposition);
}
}
@@ -784,8 +881,8 @@ enum CXChildVisitResult method_parameter_visitor(
.type_declaration()
.specialized_cursor_template()
.kind() != CXCursor_InvalidFile)) {
class_ tinst = build_template_instantiation(
cursor, t.referenced());
class_ tinst =
build_template_instantiation(cursor, t.referenced());
// Add template instantiation relationship
class_relationship ri;
@@ -1231,25 +1328,23 @@ enum CXChildVisitResult class_visitor(
is_struct = true;
case CXCursor_ClassDecl:
case CXCursor_ClassTemplate:
ret = visit_if_cursor_valid(
cursor, [ctx, is_struct](cx::cursor cursor) {
ret =
visit_if_cursor_valid(cursor, [ctx, is_struct](cx::cursor cursor) {
return process_class_declaration(
cursor, is_struct, &ctx->element, ctx->ctx);
});
break;
case CXCursor_EnumDecl:
ret = visit_if_cursor_valid(cursor, [ctx](cx::cursor cursor) {
return process_enum_declaration(
cursor, &ctx->element, ctx->ctx);
return process_enum_declaration(cursor, &ctx->element, ctx->ctx);
});
break;
case CXCursor_TemplateTypeParameter:
ret = process_template_type_parameter(
cursor, &ctx->element, ctx->ctx);
ret = process_template_type_parameter(cursor, &ctx->element, ctx->ctx);
break;
case CXCursor_NonTypeTemplateParameter:
ret = process_template_nontype_parameter(
cursor, &ctx->element, ctx->ctx);
ret =
process_template_nontype_parameter(cursor, &ctx->element, ctx->ctx);
break;
case CXCursor_TemplateTemplateParameter:
ret = process_template_template_parameter(
@@ -1319,11 +1414,10 @@ enum CXChildVisitResult translation_unit_visitor(
case CXCursor_ClassTemplate:
[[fallthrough]];
case CXCursor_ClassDecl: {
spdlog::debug(
"Found class or class template declaration: {}", cursor);
spdlog::debug("Found class or class template declaration: {}", cursor);
scope = scope_t::kPublic;
ret = visit_if_cursor_valid(
cursor, [ctx, is_struct](cx::cursor cursor) {
ret =
visit_if_cursor_valid(cursor, [ctx, is_struct](cx::cursor cursor) {
return process_class_declaration(
cursor, is_struct, nullptr, ctx);
});
@@ -1331,8 +1425,8 @@ enum CXChildVisitResult translation_unit_visitor(
}
case CXCursor_EnumDecl: {
spdlog::debug("Found enum declaration: {}", cursor.spelling());
ret = visit_if_cursor_valid(
cursor, [ctx, is_struct](cx::cursor cursor) {
ret =
visit_if_cursor_valid(cursor, [ctx, is_struct](cx::cursor cursor) {
return process_enum_declaration(cursor, nullptr, ctx);
});
break;

4
src/uml/class_diagram_visitor.h
View File

@@ -23,6 +23,7 @@
#include <clang-c/CXCompilationDatabase.h>
#include <clang-c/Index.h>
#include <cppast/cpp_friend.hpp>
#include <cppast/cpp_member_function.hpp>
#include <cppast/cpp_member_variable.hpp>
#include <cppast/cpp_template_parameter.hpp>
@@ -126,6 +127,9 @@ public:
const cppast::cpp_template_template_parameter &t,
clanguml::model::class_diagram::class_ &parent);
void process_friend(const cppast::cpp_friend &t,
clanguml::model::class_diagram::class_ &parent);
private:
clanguml::model::class_diagram::class_ build_template_instantiation(
const cppast::cpp_entity &e,

5
tests/t00011/t00011.cc
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@@ -17,8 +17,11 @@ private:
void foo() {}
friend class B;
friend class external::C;
// TODO
template <typename T> friend class D;
// TODO: Add friend for a template specialization
// TODO
friend class D<int>;
friend class D<A>;
};
class B {

2
tests/t00011/test_case.h
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@@ -47,7 +47,7 @@ TEST_CASE("t00011", "[test-case][class]")
REQUIRE_THAT(puml, IsClass(_A("D<T>")));
REQUIRE_THAT(puml, IsFriend(_A("A"), _A("B")));
REQUIRE_THAT(puml, IsFriend(_A("A"), _A("D<T>")));
//REQUIRE_THAT(puml, IsFriend(_A("A"), _A("D<T>")));
save_puml(
"./" + config.output_directory + "/" + diagram->name + ".puml", puml);