Initial commit

This commit is contained in:
Bartek Kryza
2021-02-07 23:13:52 +01:00
commit 8ccd4bc81e
26 changed files with 27626 additions and 0 deletions

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#pragma once
#include "class_diagram_model.h"
#include <clang-c/CXCompilationDatabase.h>
#include <clang-c/Index.h>
#include <spdlog/spdlog.h>
#include <functional>
#include <memory>
#include <string>
namespace clanguml {
namespace visitor {
namespace class_diagram {
using clanguml::model::class_diagram::class_;
using clanguml::model::class_diagram::class_member;
using clanguml::model::class_diagram::class_method;
using clanguml::model::class_diagram::class_parent;
using clanguml::model::class_diagram::class_relationship;
using clanguml::model::class_diagram::diagram;
using clanguml::model::class_diagram::enum_;
using clanguml::model::class_diagram::relationship_t;
using clanguml::model::class_diagram::scope_t;
template <typename T> struct element_visitor_context {
element_visitor_context(T &e)
: element(e)
{
}
CXCursorKind current_cursor_kind;
std::vector<std::string> namespace_;
T &element;
};
struct class_visitor_context : element_visitor_context<class_> {
class_visitor_context(class_ &c)
: element_visitor_context<class_>(c)
{
}
scope_t scope;
};
struct tu_context {
tu_context(diagram &d)
: diagram(d)
{
}
std::vector<std::string> namespace_;
diagram &diagram;
};
enum CXChildVisitResult visit_if_cursor_valid(
CXCursor cursor, std::function<void(CXCursor)> f)
{
enum CXChildVisitResult ret = CXChildVisit_Break;
CXString cursorName = clang_getCursorSpelling(cursor);
if (clang_isCursorDefinition(cursor)) {
if (*clang_getCString(cursorName)) {
f(cursor);
ret = CXChildVisit_Continue;
}
else {
ret = CXChildVisit_Recurse;
}
}
else {
ret = CXChildVisit_Continue;
}
return ret;
}
static enum CXChildVisitResult enum_visitor(
CXCursor cursor, CXCursor parent, CXClientData client_data)
{
auto e = (struct enum_ *)client_data;
CXString cursorName = clang_getCursorSpelling(cursor);
std::string cursor_name_str = clang_getCString(cursorName);
spdlog::info(
"Visiting enum {}: {} - {}:{}", e->name, cursor_name_str, cursor.kind);
enum CXChildVisitResult ret = CXChildVisit_Break;
switch (cursor.kind) {
case CXCursor_EnumConstantDecl:
visit_if_cursor_valid(
cursor, [e, cursor_name_str](CXCursor cursor) {
spdlog::info("Adding enum constant {}::{}", e->name,
cursor_name_str);
e->constants.emplace_back(cursor_name_str);
});
ret = CXChildVisit_Continue;
break;
default:
ret = CXChildVisit_Continue;
break;
}
return ret;
}
static enum CXChildVisitResult class_visitor(
CXCursor cursor, CXCursor parent, CXClientData client_data)
{
auto c = (struct class_ *)client_data;
CXString cursorName = clang_getCursorSpelling(cursor);
std::string cursor_name_str = clang_getCString(cursorName);
spdlog::info("Visiting {}: {} - {}:{}", c->is_struct ? "struct" : "class",
c->name, cursor_name_str, cursor.kind);
enum CXChildVisitResult ret = CXChildVisit_Break;
switch (cursor.kind) {
case CXCursor_CXXMethod:
case CXCursor_Constructor:
case CXCursor_Destructor:
case CXCursor_FunctionTemplate: {
visit_if_cursor_valid(
cursor, [c, cursor_name_str](CXCursor cursor) {
class_method m;
m.name = cursor_name_str;
m.type = clang_getCString(clang_getTypeSpelling(
clang_getResultType(clang_getCursorType(cursor))));
spdlog::info("Adding method {} {}::{}()", m.type, c->name,
cursor_name_str);
c->methods.emplace_back(std::move(m));
});
ret = CXChildVisit_Continue;
break;
}
case CXCursor_FieldDecl: {
visit_if_cursor_valid(cursor, [c, cursor_name_str](CXCursor cursor) {
auto t = clang_getCursorType(cursor);
class_member m;
m.name = cursor_name_str;
m.type = clang_getCString(clang_getTypeSpelling(t));
spdlog::info("Adding member {} {}::{}", m.type, c->name,
cursor_name_str);
relationship_t relationship_type = relationship_t::kOwnership;
// Parse the field declaration to determine the relationship
// type
if (!clang_isPODType(t)) {
while (true) {
if (t.kind == CXType_Pointer) {
relationship_type = relationship_t::kAssociation;
t = clang_getPointeeType(t);
continue;
}
else if (t.kind == CXType_LValueReference) {
relationship_type = relationship_t::kAggregation;
t = clang_getPointeeType(t);
continue;
}
else if (t.kind == CXType_RValueReference) {
relationship_type = relationship_t::kAssociation;
t = clang_getPointeeType(t);
continue;
}
/*else if(t.kind == CXType_Elaborated) {
t = clang_Type_getNamedType(t);
continue;
}*/
else /*if (t.kind == CXType_Record) */ {
spdlog::error("UNKNOWN CXTYPE: {}", t.kind);
class_relationship r;
auto template_argument_count =
clang_Type_getNumTemplateArguments(t);
std::string name{
clang_getCString(clang_getTypeSpelling(t))};
if (template_argument_count > 0) {
std::vector<CXType> template_arguments;
for (int i = 0; i < template_argument_count;
i++) {
auto tt =
clang_Type_getTemplateArgumentAsType(
t, i);
template_arguments.push_back(tt);
}
if (name.rfind("vector") == 0 ||
name.rfind("std::vector") == 0) {
r.type = relationship_t::kAggregation;
r.destination =
clang_getCString(clang_getTypeSpelling(
template_arguments[0]));
}
if (name.rfind("map") == 0 ||
name.rfind("std::map") == 0) {
r.type = relationship_t::kAggregation;
r.destination =
clang_getCString(clang_getTypeSpelling(
template_arguments[1]));
}
r.label = m.name;
c->relationships.emplace_back(std::move(r));
}
else {
r.destination = name;
r.type = relationship_type;
r.label = m.name;
c->relationships.emplace_back(std::move(r));
}
spdlog::debug(
"Adding relationship to: {}", r.destination);
}
// else {
// spdlog::error("UNKNOWN CXTYPE: {}", t.kind);
//}
break;
}
}
c->members.emplace_back(std::move(m));
});
ret = CXChildVisit_Continue;
break;
}
case CXCursor_CXXBaseSpecifier: {
CXCursor ref_cursor = clang_getCursorReferenced(cursor);
CXString display_name = clang_getCursorDisplayName(ref_cursor);
auto base_access = clang_getCXXAccessSpecifier(cursor);
spdlog::error("Found base specifier: {} - {}", cursor_name_str,
clang_getCString(display_name));
class_parent cp;
cp.name = clang_getCString(display_name);
cp.is_virtual = false;
switch (base_access) {
case CX_CXXAccessSpecifier::CX_CXXPrivate:
cp.access = class_parent::access_t::kPrivate;
break;
case CX_CXXAccessSpecifier::CX_CXXPublic:
cp.access = class_parent::access_t::kPublic;
break;
case CX_CXXAccessSpecifier::CX_CXXProtected:
cp.access = class_parent::access_t::kProtected;
break;
default:
cp.access = class_parent::access_t::kPublic;
}
c->bases.emplace_back(std::move(cp));
ret = CXChildVisit_Continue;
break;
}
default:
ret = CXChildVisit_Continue;
break;
}
return ret;
};
static enum CXChildVisitResult translation_unit_visitor(
CXCursor cursor, CXCursor parent, CXClientData client_data)
{
if (clang_Location_isFromMainFile(clang_getCursorLocation(cursor)) == 0) {
return CXChildVisit_Continue;
}
struct tu_context *ctx = (struct tu_context *)client_data;
enum CXChildVisitResult ret = CXChildVisit_Break;
CXString cursorName = clang_getCursorSpelling(cursor);
std::string cursor_name_str = clang_getCString(cursorName);
spdlog::debug("Visiting cursor: {}", cursor_name_str);
bool is_struct{false};
auto scope{scope_t::kPrivate};
switch (cursor.kind) {
case CXCursor_StructDecl:
spdlog::debug("Found struct declaration: {}", cursor_name_str);
is_struct = true;
[[fallthrough]];
case CXCursor_ClassTemplate:
[[fallthrough]];
case CXCursor_ClassDecl: {
spdlog::debug("Found class or class template declaration: {}",
cursor_name_str);
scope = scope_t::kPublic;
visit_if_cursor_valid(
cursor, [ctx, is_struct, cursor_name_str](CXCursor cursor) {
class_ c{};
c.is_struct = is_struct;
c.name = cursor_name_str;
c.namespace_ = ctx->namespace_;
clang_visitChildren(cursor, class_visitor, &c);
ctx->diagram.classes.emplace_back(std::move(c));
});
ret = CXChildVisit_Continue;
break;
}
case CXCursor_EnumDecl: {
spdlog::debug("Found enum declaration: {}", cursor_name_str);
visit_if_cursor_valid(
cursor, [ctx, is_struct, cursor_name_str](CXCursor cursor) {
enum_ e{};
e.name = cursor_name_str;
e.namespace_ = ctx->namespace_;
clang_visitChildren(cursor, enum_visitor, &e);
ctx->diagram.enums.emplace_back(std::move(e));
});
ret = CXChildVisit_Continue;
break;
}
case CXCursor_Namespace: {
spdlog::debug("Found namespace specifier: {}", cursor_name_str);
ret = CXChildVisit_Recurse;
break;
}
default:
spdlog::debug("Found cursor: {}", cursor_name_str);
ret = CXChildVisit_Recurse;
}
return ret;
}
}
}
}