feat use inja generate

3rdparty/sled

@@ -1 +1 @@
-Subproject commit f31657640f5731c2f86206190fe1d59728225795
+Subproject commit fcce11249be00ca0c7f8c2e75938de4b3e5f26da

CMakeLists.txt

@@ -41,5 +41,6 @@ endif()
 target_include_directories(meta PRIVATE 
     ${CLANG_INCLUDE_DIR} 
     ${CMAKE_CURRENT_SOURCE_DIR}/src
-    ${CMAKE_CURRENT_SOURCE_DIR}/3rdparty/mustache)
+    ${CMAKE_CURRENT_SOURCE_DIR}/runtime
+    ${CMAKE_CURRENT_SOURCE_DIR}/3rdparty/inja)
 target_link_libraries(meta PRIVATE sled ${CLANG_LIB_LIBRARIES})

runtime/any.h

@@ -0,0 +1,329 @@
+/**
+ * Port of boost::any for C++11 compilers.
+ * See http://www.boost.org/libs/any for Documentation.
+ *
+ * See also:
+ *   + http://en.cppreference.com/w/cpp/any
+ *   + http://en.cppreference.com/w/cpp/experimental/any
+ *   + http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2015/n4562.html#any
+ *   + https://cplusplus.github.io/LWG/lwg-active.html#2509
+ *
+ * Copyright Kevlin Henney, 2000, 2001, 2002. All rights reserved.
+ * Copyright Claudio Fantacci, 2018. All rights reserved.
+ *
+ * what:  variant type boost::any
+ * who:   contributed by Kevlin Henney,
+ *        with features contributed and bugs found by Antony Polukhin, Ed Brey, Mark Rodgers, Peter Dimov and James Curran,
+ *        with C++11 compiler port by Claudio Fantacci
+ * when:  July 2001, April 2013 - May 2013, September 2018
+ *
+ * Distributed under the Boost Software License, Version 1.0.
+ * (See accompanying file LICENSE.md or copy at http://www.boost.org/LICENSE_1_0.txt)
+ */
+
+#pragma once
+#ifndef META_ANY_H
+#define META_ANY_H
+
+#include <algorithm>
+#include <memory>
+#include <stdexcept>
+#include <type_traits>
+#include <typeinfo>
+
+namespace meta {
+namespace reflection {
+
+/**
+ * The class any describes a type-safe container for single values of any type.
+ * An object of class any stores an instance of any type that satisfies the
+ * constructor requirements or is empty, and this is referred to as the state
+ * of the class any object. The stored instance is called the contained object.
+ * Two states are equivalent if they are either both empty or if both are not
+ * empty and if the contained objects are equivalent.
+ * The non-member any_cast functions provide type-safe access to the contained object.
+ */
+class any final {
+public:
+    /**
+     * Constructs an empty object.
+     */
+    any() noexcept : content(0) {}
+
+    /**
+     * Copies content of other into a new instance, so that any content is equivalent
+     * in both type and value to those of other prior to the constructor call,
+     * or empty if other is empty.
+     */
+    any(const any &other) : content(other.content ? other.content->clone() : 0) {}
+
+    /**
+     * Moves content of other into a new instance, so that any content is equivalent
+     * in both type and value to those of other prior to the constructor call,
+     * or empty if other is empty.
+     */
+    any(any &&other) noexcept : content(other.content) { other.content = 0; }
+
+    /**
+     * Constructs an object with initial content an object of type std::decay_t<ValueType>,
+     * direct-initialized from std::forward<ValueType>(value). If
+     * std::is_copy_constructible<std::decay_t<ValueType>>::value is false, the program is ill-formed.
+     */
+    template<typename ValueType>
+    any(const ValueType &value)
+        : content(
+            new holder<typename std::remove_cv<typename std::decay<const ValueType>::type>::type>(
+                value))
+    {}
+
+    /**
+     * Constructs an object with initial content an object of type std::decay_t<ValueType>,
+     * direct-initialized from std::forward<ValueType>(value). If
+     * std::is_copy_constructible<std::decay_t<ValueType>>::value is false, the program is ill-formed.
+     */
+    template<typename ValueType>
+    any(ValueType &&value,
+        typename std::enable_if<!std::is_same<any &, ValueType>::value>::type * = 0,
+        typename std::enable_if<!std::is_const<ValueType>::value>::type * = 0)
+        : content(
+            new holder<typename std::decay<ValueType>::type>(static_cast<ValueType &&>(value)))
+    {}
+
+    /**
+     * Destruct the object.
+     */
+    ~any() noexcept { delete content; }
+
+    /**
+     * Assigns contents to the contained value.
+     * Assigns by copying the state of rhs, as if by any(rhs).swap(*this).
+     *
+     * @param rhs object whose contained value to assign
+     */
+    any &operator=(const any &rhs)
+    {
+        any(rhs).swap(*this);
+        return *this;
+    }
+
+    /**
+     * Assigns contents to the contained value.
+     * Assigns by moving the state of rhs, as if by any(std::move(rhs)).swap(*this).
+     * rhs is left in a valid but unspecified state after the assignment.
+     *
+     * @param rhs object whose contained value to assign
+     */
+    any &operator=(any &&rhs) noexcept
+    {
+        rhs.swap(*this);
+        any().swap(rhs);
+        return *this;
+    }
+
+    /**
+     * Assigns contents to the contained value.
+     * Assigns the type and value of rhs, as if by any(std::forward<ValueType>(rhs)).swap(*this).
+     * This overload only participates in overload resolution if std::decay_t<ValueType> is not
+     * the same type as any and std::is_copy_constructible_v<std::decay_t<ValueType>> is true.
+     *
+     * @param rhs object whose contained value to assign
+     */
+    template<class ValueType>
+    any &operator=(ValueType &&rhs)
+    {
+        any(static_cast<ValueType &&>(rhs)).swap(*this);
+        return *this;
+    }
+
+    /**
+     * If not empty, destroys the contained object.
+     */
+    void reset() noexcept { any().swap(*this); }
+
+    /**
+     * Swaps the content of two any objects.
+     *
+     * @param other object to swap with
+     */
+    any &swap(any &rhs) noexcept
+    {
+        std::swap(content, rhs.content);
+        return *this;
+    }
+
+    /**
+     * Checks whether the object contains a value.
+     *
+     * @return true if instance contains a value, otherwise false.
+     */
+    bool has_value() const noexcept { return content; }
+
+    /**
+     * Queries the contained type.
+     *
+     * The typeid of the contained value if instance is non-empty, otherwise typeid(void).
+     */
+    const std::type_info &type() const noexcept { return content ? content->type() : typeid(void); }
+
+private:
+    class placeholder {
+    public:
+        virtual ~placeholder() {}
+
+    public:
+        virtual const std::type_info &type() const noexcept = 0;
+
+        virtual placeholder *clone() const = 0;
+    };
+
+    template<typename ValueType>
+    class holder : public placeholder {
+    public:
+        holder(const ValueType &value) : held(value) {}
+
+        holder(ValueType &&value) : held(static_cast<ValueType &&>(value)) {}
+
+        virtual const std::type_info &type() const noexcept { return typeid(ValueType); }
+
+        virtual placeholder *clone() const { return new holder(held); }
+
+        ValueType held;
+
+    private:
+        holder &operator=(const holder &);
+    };
+
+private:
+    template<typename ValueType>
+    friend ValueType *any_cast(any *) noexcept;
+
+    placeholder *content;
+};
+
+/**
+ * Overloads the std::swap algorithm for std::any. Swaps the content of two any objects by calling lhs.swap(rhs).
+ *
+ * @param lhs objects to swap
+ * @param rhs objects to swap
+ */
+inline void
+swap(any &lhs, any &rhs) noexcept
+{
+    lhs.swap(rhs);
+}
+
+/**
+ * Defines a type of object to be thrown by the value-returning forms of libanyboost::any_cast on failure.
+ */
+class bad_any_cast : public std::bad_cast {
+public:
+    /**
+     * Returns the explanatory string.
+     *
+     * Pointer to a null-terminated string with explanatory information. The pointer is guaranteed to be
+     * valid at least until the exception object from which it is obtained is destroyed, or until a
+     * non-const member function on the exception object is called.
+     */
+    virtual const char *what() const noexcept override { return "bad any_cast"; }
+};
+
+/**
+ * Performs type-safe access to the contained object.
+ *
+ * Throws libanyboost::bad_any_cast if the typeid of the requested
+ * ValueType does not match that of the contents of operand.
+ *
+ * @param operand target any object
+ */
+template<typename ValueType>
+ValueType *
+any_cast(any *operand) noexcept
+{
+    return operand && operand->type() == typeid(ValueType)
+        ? std::addressof(
+            static_cast<any::holder<typename std::remove_cv<ValueType>::type> *>(operand->content)
+                ->held)
+        : 0;
+}
+
+/**
+ * Performs type-safe access to the contained object.
+ *
+ * Throws libanyboost::bad_any_cast if the typeid of the requested
+ * ValueType does not match that of the contents of operand.
+ *
+ * @param operand target any object
+ */
+template<typename ValueType>
+inline const ValueType *
+any_cast(const any *operand) noexcept
+{
+    return any_cast<ValueType>(const_cast<any *>(operand));
+}
+
+/**
+ * Performs type-safe access to the contained object.
+ *
+ * Throws libanyboost::bad_any_cast if the typeid of the requested
+ * ValueType does not match that of the contents of operand.
+ *
+ * @param operand target any object
+ */
+template<typename ValueType>
+ValueType
+any_cast(any &operand)
+{
+    typedef typename std::remove_reference<ValueType>::type nonref;
+
+    nonref *result = any_cast<nonref>(std::addressof(operand));
+    if (!result) throw bad_any_cast();
+
+    typedef typename std::conditional<std::is_reference<ValueType>::value,
+                                      ValueType,
+                                      typename std::add_lvalue_reference<ValueType>::type>::type
+        ref_type;
+
+    return static_cast<ref_type>(*result);
+}
+
+/**
+ * Performs type-safe access to the contained object.
+ *
+ * Throws libanyboost::bad_any_cast if the typeid of the requested
+ * ValueType does not match that of the contents of operand.
+ *
+ * @param operand target any object
+ */
+template<typename ValueType>
+inline ValueType
+any_cast(const any &operand)
+{
+    typedef typename std::remove_reference<ValueType>::type nonref;
+    return any_cast<const nonref &>(const_cast<any &>(operand));
+}
+
+/**
+ * Performs type-safe access to the contained object.
+ *
+ * Throws libanyboost::bad_any_cast if the typeid of the requested
+ * ValueType does not match that of the contents of operand.
+ *
+ * @param operand target any object
+ */
+template<typename ValueType>
+inline ValueType
+any_cast(any &&operand)
+{
+    static_assert(std::is_rvalue_reference<ValueType &&>::value
+                      || std::is_const<typename std::remove_reference<ValueType>::type>::value,
+                  "any_cast shall not be used for getting nonconst references to "
+                  "temporary objects");
+
+    return any_cast<ValueType>(operand);
+}
+
+}// namespace reflection
+
+}// namespace meta
+
+#endif /* META_ANY_H */

runtime/apply.h

@@ -0,0 +1,60 @@
+#pragma once
+#ifndef META_APPLY_H
+#define META_APPLY_H
+#include <functional>
+#include <tuple>
+
+namespace meta {
+namespace reflection {
+namespace detail {
+template<int... Seq>
+struct Sequence {};
+
+template<int N, int... Seq>
+struct MakeSeq : MakeSeq<N - 1, N - 1, Seq...> {};
+
+template<int... Seq>
+struct MakeSeq<0, Seq...> {
+    using type = Sequence<Seq...>;
+};
+
+template<typename ReturnT, typename Func, typename Tuple, int... Seq>
+ReturnT
+ApplyImpl(const Func &func, const Tuple &tuple, const Sequence<Seq...> &)
+{
+    return std::bind(func, std::get<Seq>(tuple)...)();
+}
+
+struct VoidTag {};
+
+}// namespace detail
+
+template<typename ReturnT,
+         typename Func,
+         typename Tuple,
+         typename std::enable_if<!std::is_void<ReturnT>::value, ReturnT>::type * = nullptr>
+ReturnT
+apply(const Func &func, const Tuple &tuple)
+{
+    return detail::ApplyImpl<ReturnT>(
+        func,
+        tuple,
+        typename detail::MakeSeq<std::tuple_size<Tuple>::value>::type());
+}
+
+template<typename ReturnT = void,
+         typename Func,
+         typename Tuple,
+         typename std::enable_if<std::is_void<ReturnT>::value, detail::VoidTag>::type * = nullptr>
+ReturnT
+apply(const Func &func, const Tuple &tuple)
+{
+    return detail::ApplyImpl<ReturnT>(
+        func,
+        tuple,
+        typename detail::MakeSeq<std::tuple_size<Tuple>::value>::type());
+}
+
+}// namespace reflection
+}// namespace meta
+#endif// META_APPLY_H

runtime/reflection.h

@@ -1,11 +1,67 @@
 #pragma once
 #ifndef META_RUNTIME_REFLECTION_H
 #define META_RUNTIME_REFLECTION_H
+#include "any.h"
+#include "apply.h"
+#include <cstdlib>
+#include <cxxabi.h>
+#include <sled/log/log.h>
 #include <string>
 #include <type_traits>
 #include <vector>
 
 namespace meta {
+namespace reflection {
+namespace detail {
+inline std::string
+RemoveTypeSpace(const std::string &str, const std::string &chars = "[]()<>*&:")
+{
+    std::string result;
+    // trim
+    {
+        result = str.substr(str.find_first_not_of(' '));
+        result = result.substr(0, result.find_last_not_of(' ') + 1);
+    }
+
+    // remove right space
+    for (size_t i = 0; i < result.size();) {
+        if (result[i] == ' ') {
+            bool left_is_chars = i > 0 && chars.find(result[i - 1]) != std::string::npos;
+            bool right_is_chars
+                = (i + 1 < str.size()) && chars.find(result[i + 1]) != std::string::npos;
+            if (left_is_chars || right_is_chars) {
+                result.erase(i, 1);
+            } else {
+                ++i;
+            }
+        } else {
+            ++i;
+        }
+    }
+    return result;
+}
+
+template<typename T, typename U = typename std::decay<T>::type>
+std::string
+PrettyNameImpl()
+{
+    const std::string name = typeid(U).name();
+    std::string pretty_name = name;
+    int status = -4;
+    char *res = abi::__cxa_demangle(name.c_str(), nullptr, nullptr, &status);
+    if (status == 0) { pretty_name = std::string(res); }
+    free(res);
+    return RemoveTypeSpace(pretty_name);
+}
+}// namespace detail
+
+template<typename T>
+inline const std::string &
+PrettyName()
+{
+    static std::string pretty_name = detail::PrettyNameImpl<T>();
+    return pretty_name;
+}
 
 #if defined(__REFLECTION_PARSER__)
 #define META(...) __attribute__((annotate(#__VA_ARGS__)))
@@ -17,139 +73,119 @@ namespace meta {
 #define STRUCT(struct_name, ...) struct struct_name
 #endif// __REFLECTION_PARSER_
 
-#define REFLECTION_BODY(class_name)                                                                \
+#define META_REFLECTION_BODY(class_name)                                                           \
+    friend class meta::reflection::##class_name##_Method;                                          \
+    friend class meta::reflection::##class_name##_Field;                                           \
+    friend class meta::reflection::##class_name##_Constructor;                                     \
+    friend class meta::reflection::##class_name##_Serializer;
+
+class Constructor;
+class Method;
+class Field;
+class Class;
+
+class BaseType {
+public:
+    BaseType(const std::string &name, std::shared_ptr<Class> parent) : name_(name), parent_(parent)
+    {}
+
+    virtual ~BaseType() = default;
+
+    std::string Name() const { return name_; }
+
+    std::shared_ptr<Class> Parent() const { return parent_; }
+
+private:
+    const std::string name_;
+    std::shared_ptr<Class> parent_;
+};
+
+class Method : public BaseType {
+public:
+    Method(const std::string &name, std::shared_ptr<Class> parent) : BaseType(name, parent) {}
+
+    ~Method() override = default;
+
+    std::shared_ptr<Class> Parent() const { return parent_; }
+
+    template<typename ReturnT,
+             typename std::enable_if<!std::is_void<ReturnT>::value, ReturnT>::type * = nullptr,
+             typename... Params>
+    inline ReturnT InvokeAndCast(void *instance, Params &&...params) const
+    {
+        return ::meta::reflection::any_cast<ReturnT>(InvokeImpl(instance, {&params...}));
+    }
+
+    template<typename ReturnT,
+             typename std::enable_if<std::is_void<ReturnT>::value, int>::type * = nullptr,
+             typename... Params>
+    inline void InvokeAndCast(void *instance, Params &&...params) const
+    {
+        ::meta::reflection::any_cast<ReturnT>(InvokeImpl(instance, {&params...}));
+    }
+
+    template<typename... Params>
+    inline ::meta::reflection::any Invoke(void *instance, Params &&...params) const
+    {
+        return InvokeImpl(instance, {&params...});
+    }
+
+protected:
+    virtual ::meta::reflection::any InvokeImpl(void *instance,
+                                               const std::vector<void *> &params) const
+        = 0;
+
+private:
+    std::shared_ptr<Class> parent_;
+};
+
+class Field : public BaseType {
+public:
+    Field(const std::string &name, std::shared_ptr<Class> parent) : BaseType(name, parent) {}
+
+    template<typename T, typename std::enable_if<!std::is_void<T>::value, T>::type * = nullptr>
+    inline T GetAndCast(void *instance) const
+    {
+        return ::meta::reflection::any_cast<T>(GetImpl(instance));
+    }
+
+    ::meta::reflection::any Get(void *instance) const { return GetImpl(instance); }
+
+    template<typename T>
+    inline void Set(void *instance, const T &value) const
+    {
+        SetImpl(instance, ::meta::reflection::any(value));
+    }
+
+protected:
+    virtual ::meta::reflection::any GetImpl(void *instance) const = 0;
+    virtual void SetImpl(void *instance, const ::meta::reflection::any &value) const = 0;
+};
+
+class Class : public BaseType {
+public:
+    Class(const std::string &name, std::shared_ptr<Class> base_class = nullptr)
+        : BaseType(name, base_class)
+    {}
+};
+
+#define REFLECTION_BODY()                                                                          \
     friend class meta::Serializer;                                                                 \
     friend class meta::Class;                                                                      \
     friend class meta::Method;                                                                     \
     friend class meta::Field;                                                                      \
     friend class meta::Constructor;
 
-class TypeInfo {
-public:
-    TypeInfo(const std::string &name) : name_(name) {}
-
-    virtual ~TypeInfo() = default;
-    std::string name() const;
-
-    virtual bool IsStatic() const = 0;
-    virtual bool IsConst() const = 0;
-
-    virtual bool IsWritable() const { return !IsConst(); };
-
-private:
-    const std::string name_;
-};
-
-class Class;
-class Constructor;
-class Field;
-class Method;
-
-class Class : public TypeInfo {
-public:
-    Class(const std::string &name) : TypeInfo(name) {}
-
-    ~Class() override = default;
-    Constructor GetConstructor(const std::string &name) const;
-    Field GetField(const std::string &name) const;
-    Method GetMethod(const std::string &name) const;
-};
-
-/**
- * class Test {
- * Test();
- * Test(int val);
- * Test(const Test & other);
- * };
- **/
-class Constructor : public TypeInfo {
-public:
-    Constructor(const std::string &name, const Class &clz) : TypeInfo(name), parent_(clz) {}
-
-    ~Constructor() override = default;
-
-    template<typename... Args>
-    void *NewInstance(Args... args) const
-    {
-        return NewInstanceImpl({&args...});
-    }
-
-protected:
-    virtual void *NewInstanceImpl(const std::vector<void *> &args) const = 0;
-    const Class &parent_;
-};
-
-class Field : public TypeInfo {
-public:
-    Field(const std::string &name, const Class &clz) : TypeInfo(name), parent_(clz) {}
-
-    ~Field() override = default;
-
-    template<typename T>
-    void Set(void *instance, T &&value) const
-    {
-        SetImpl(instance, &value);
-    }
-
-    template<typename T>
-    const T &Get(void *instance) const
-    {
-        return *static_cast<T *>(GetImpl(instance));
-    }
-
-    template<typename T>
-    T &Get(void *instance) const
-    {
-        return *static_cast<T *>(GetImpl(instance));
-    }
-
-protected:
-    virtual void SetImpl(void *instance, void *value) const = 0;
-    virtual void *GetImpl(void *instance) const = 0;
-
-    const Class &parent_;
-};
-
-class Method : public TypeInfo {
-public:
-    Method(const std::string &name, const Class &clz) : TypeInfo(name), parent_(clz) {}
-
-    ~Method() override = default;
-
-    template<typename ReturnT,
-             typename std::enable_if<!std::is_void<ReturnT>::value, ReturnT>::type * = nullptr>
-    inline ReturnT InvokeProxy(void *instance, const std::vector<void *> &args) const
-    {
-        return *static_cast<ReturnT *>(InvokeImpl(instance, args));
-    }
-
-    inline void InvokeProxy(void *instance, const std::vector<void *> &args) const
-    {
-        InvokeImpl(instance, args);
-    }
-
-    template<typename ReturnT, typename... Args>
-    inline ReturnT Invoke(void *instance, Args... args)
-    {
-        return InvokeProxy<ReturnT>(instance, {&args...});
-    }
-
-    template<typename... Args>
-    inline void Invoke(void *instance, Args... args)
-    {
-        InvokeProxy<void>(instance, {&args...});
-    }
-
-protected:
-    virtual void *InvokeImpl(void *instance, const std::vector<void *> &args) const = 0;
-    const Class &parent_;
-};
-
 class Reflectioin {
 public:
     static Reflectioin *Instance();
     ~Reflectioin();
+    std::shared_ptr<Class> GetClass();
+    // std::shared_ptr<Constructor> GetConstructor(std::shared_ptr<Class> clz);
+    std::shared_ptr<Method> GetMethod(std::shared_ptr<Class> clz);
+    std::shared_ptr<Field> GetField(std::shared_ptr<Class> clz);
 };
+}// namespace reflection
 
 }// namespace meta
 

runtime/test.h

@@ -5,6 +5,8 @@
 #include "reflection.h"
 
 namespace test {
+class TypeDef {};
+
 CLASS(Test)
 {
 public:
@@ -17,6 +19,7 @@ public:
     int GetA() const { return a_; }
 
     int kk(int, void *);
+    TypeDef GetTypeDef() const { return type_def_; }
 
 private:
     struct Void {};
@@ -29,6 +32,9 @@ private:
 
     const int b_;
     int a_;
+
+    META("TypeDef")
+    TypeDef type_def_;
 };
 
 }// namespace test

src/clang/cursor_type.h

@@ -19,12 +19,14 @@ public:
     CursorType(const CXType &handle);
 
     std::string GetDisplayName(void) const;
+    bool IsConst(void) const;
+
+    // for Function type
     int GetArgumentCount(void) const;
     CursorType GetArgument(unsigned index) const;
     CursorType GetCanonicalType(void) const;
     Cursor GetDeclaration(void) const;
     CXTypeKind GetKind(void) const;
-    bool IsConst(void) const;
 
     CXType handle() const { return handle_; }
 

src/clang/parser.cc

@@ -1,5 +1,6 @@
 #include "parser.h"
 #include "utils.h"
+#include <sled/cleanup.h>
 #include <sled/log/log.h>
 #include <sled/strings/utils.h>
 
@@ -38,30 +39,29 @@ Parser::Parse(const std::string &file_name, std::vector<const char *> extra_args
                                                    0,
                                                    CXTranslationUnit_None);
     CXDiagnosticSet diagnostics = clang_getDiagnosticSetFromTU(translation_unit_);
+    sled::Cleanup<> diagnostic_cleanup([&diagnostics] { clang_disposeDiagnosticSet(diagnostics); });
+
     unsigned num_diagnostics = clang_getNumDiagnosticsInSet(diagnostics);
     for (unsigned i = 0; i < num_diagnostics; ++i) {
         CXDiagnostic diagnostic = clang_getDiagnosticInSet(diagnostics, i);
+        sled::Cleanup<> cleanup([&diagnostic] { clang_disposeDiagnostic(diagnostic); });
+
         auto msg = ToString(clang_formatDiagnostic(diagnostic, CXDiagnostic_DisplaySourceLocation));
         std::string filename;
         {
             CXSourceLocation diagLoc = clang_getDiagnosticLocation(diagnostic);
+            // ignore error from std
+            if (clang_Location_isInSystemHeader(diagLoc)) { continue; };
             CXFile file;
             clang_getExpansionLocation(diagLoc, &file, nullptr, nullptr, nullptr);
             filename = ToString(clang_getFileName(file));
         }
 
-        if (sled::EndsWith(filename, "reflection.h")) {
-            clang_disposeDiagnostic(diagnostic);
-            continue;
-        }
+        // ignore error for reflection.h
+        if (sled::EndsWith(filename, "reflection.h")) { continue; }
 
-        clang_disposeDiagnostic(diagnostic);
-
-        if (msg.find("error: use of undeclared identifier 'std'") == std::string::npos) {
         LOGE("parser", "diagnostic: {}", msg);
     }
-    }
-    clang_disposeDiagnosticSet(diagnostics);
 
     return translation_unit_ != nullptr;
 }

src/generators/base_generator.cc

@@ -3,47 +3,88 @@
 #include "types/method.h"
 
 namespace meta {
+/**
+* { 
+*     class_name = "class_name",
+*     properties = []
+*     class_type = "ns1::ns2::class_name",
+*     fields = [
+*     ],
+*     methods = [
+*         {
+*             name = "method_name",
+*             properties = []
+*             is_const = false,
+*             return_type = "int",
+*             params = [
+*                 {
+*                     name = "arg_name1",
+*                     type = "int",
+*                 },
+*                 {
+*                     name = "arg_name2",
+*                     type = "void*",
+*                 }
+*             ]
+*         }
+*     ]
+* }
+**/
 
 void
-BaseGenerator::GenClassRenderData(Class *clz, Mustache::data &class_def)
+BaseGenerator::GenClassRenderData(Class *clz, inja::json &class_def)
 {
-    class_def.set("class_name", clz->name());
-    class_def.set("class_need_registry", true);
+    class_def["class_name"] = clz->Name();
+    class_def["class_namespace"] = sled::StrJoin(clz->namespaces(), "::");
+    class_def["properties"] = inja::json::array();
+    for (auto &prop : clz->properties()) { class_def["properties"].push_back(prop); }
 
-    Mustache::data class_field_defines = Mustache::data::type::list;
-    GenClassFieldRenderData(clz, class_field_defines);
-    class_def.set("class_field_defines", class_field_defines);
+    inja::json methods = inja::json::array();
+    inja::json fields = inja::json::array();
 
-    Mustache::data class_method_defines = Mustache::data::type::list;
-    GenClassMethodRenderData(clz, class_method_defines);
-    class_def.set("class_method_defines", class_method_defines);
+    GenClassMethodRenderData(clz, methods);
+    GenClassFieldRenderData(clz, fields);
+
+    class_def["class_methods"] = methods;
+    class_def["class_fields"] = fields;
 }
 
 void
-BaseGenerator::GenClassFieldRenderData(Class *clz, Mustache::data &field_defs)
+BaseGenerator::GenClassConstructorRenderData(Class *clz, inja::json &constructor_defs)
+{}
+
+void
+BaseGenerator::GenClassFieldRenderData(Class *clz, inja::json &field_defs)
 {
     for (auto &field : clz->fields()) {
-        Mustache::data field_def;
-        field_def.set("class_field_name", field->name());
-        field_def.set("class_field_type", field->type_name());
-        field_def.set("class_field_display_name", field->cursor().GetDisplayName());
-        if (field->type_name().find("std::vector") != std::string::npos) {
-            field_def.set("class_field_is_vector", true);
-        } else {
-            field_def.set("class_field_is_vector", false);
-        }
+        inja::json field_def;
+        field_def["name"] = field->Name();
+        field_def["is_const"] = field->IsConst();
+        field_def["properties"] = inja::json::array();
+        for (auto &prop : field->properties()) { field_def["properties"].push_back(prop); }
+        field_def["type"] = field->cursor().GetType().GetDisplayName();
         field_defs.push_back(field_def);
     }
 }
 
 void
-BaseGenerator::GenClassMethodRenderData(Class *clz, Mustache::data &method_defs)
+BaseGenerator::GenClassMethodRenderData(Class *clz, inja::json &method_defs)
 {
     for (auto &method : clz->methods()) {
-        Mustache::data method_def;
-        method_def.set("class_method_name", method->name());
-        method_def.set("class_method_return_type", method->return_type().GetDisplayName());
-        method_def.set("class_method_display_name", method->cursor().GetDisplayName());
+        inja::json method_def;
+        method_def["name"] = method->Name();
+        method_def["properties"] = inja::json::array();
+        for (auto &prop : method->properties()) { method_def["properties"].push_back(prop); }
+        method_def["is_const"] = method->IsConst();
+        method_def["return_type"] = method->return_type().GetDisplayName();
+        inja::json params = inja::json::array();
+        for (auto &param : method->arguments()) {
+            inja::json param_def;
+            param_def["name"] = "";
+            param_def["type"] = param.GetDisplayName();
+            params.push_back(param_def);
+        }
+        method_def["params"] = params;
         method_defs.push_back(method_def);
     }
 }

src/generators/base_generator.h

@@ -2,21 +2,20 @@
 #ifndef META_GENERATORS_BASE_GENERATOR_H
 #define META_GENERATORS_BASE_GENERATOR_H
 
+#include "inja.hpp"
 #include "types/class.h"
-#include <mustache.hpp>
 #include <string>
 
 namespace meta {
-using namespace kainjow;
-namespace Mustache = kainjow::mustache;
 
 class BaseGenerator {
 public:
     virtual ~BaseGenerator() = default;
     virtual void Generate() = 0;
-    virtual void GenClassRenderData(Class *clz, Mustache::data &class_def);
-    virtual void GenClassFieldRenderData(Class *clz, Mustache::data &field_defs);
-    virtual void GenClassMethodRenderData(Class *clz, Mustache::data &method_defs);
+    virtual void GenClassRenderData(Class *clz, inja::json &class_def);
+    virtual void GenClassConstructorRenderData(Class *clz, inja::json &constructor_defs);
+    virtual void GenClassFieldRenderData(Class *clz, inja::json &field_defs);
+    virtual void GenClassMethodRenderData(Class *clz, inja::json &method_defs);
 };
 }// namespace meta
 

src/main.cc

@@ -1,15 +1,132 @@
+#include "generators/base_generator.h"
+#include "reflection.h"
 #include "registry.h"
 #include "types/class.h"
 #include "clang/parser.h"
+#include <fstream>
+#include <sled/any.h>
+#include <sled/apply.h>
 #include <sled/filesystem/path.h>
 #include <sled/log/log.h>
 #include <sled/strings/utils.h>
+#include <tuple>
 
 const char *kTag = "main";
 
+class Generator : public meta::BaseGenerator {
+public:
+    Generator(const std::string &template_path)
+    {
+        std::fstream in(template_path, std::ios::in);
+        std::stringstream ss;
+        ss << in.rdbuf();
+        template_ = ss.str();
+    }
+
+    ~Generator() override = default;
+
+    void Generate() override
+    {
+        for (auto &clz : meta::Registry::Instance()->classes()) {
+            inja::json class_def;
+            GenClassRenderData(clz, class_def);
+            inja::Environment env;
+            env.set_trim_blocks(true);
+            env.set_lstrip_blocks(true);
+            try {
+                LOGV(kTag, "data={}", class_def.dump());
+                LOGV(kTag, "class_def={}", env.render(template_, class_def));
+            } catch (const std::exception &e) {
+                LOGE(kTag, "error: {}", e.what());
+            }
+        }
+    }
+
+private:
+    std::string template_;
+};
+
+// template<typename ClassT, typename ReturnT = void, typename... Args>
+// std::function<void(sled::any)>
+// MemberFunctionWrapper(void (ClassT::*func)(Args...))
+// {
+//     return [=](sled::any obj_args) {
+//         using tuple = ::std::tuple<ClassT *, Args...>;
+//         // ::std::tuple<ClassT *, Args...> *pTuple = ::sled::any_cast<tuple *>(obj_args);
+//         auto tuple_ptr = ::sled::any_cast<tuple *>(obj_args);
+//         sled::apply(func, *tuple_ptr);
+//     };
+// }
+
+template<typename ClassT, typename ReturnT, typename... Args>
+std::function<ReturnT(sled::any)>
+MemberFunctionWrapper(ReturnT (ClassT::*func)(Args...))
+{
+    return [=](sled::any obj_args) {
+        using tuple = ::std::tuple<ClassT *, Args...>;
+        // ::std::tuple<ClassT *, Args...> *pTuple = ::sled::any_cast<tuple *>(obj_args);
+        auto tuple_ptr = ::sled::any_cast<tuple *>(obj_args);
+        return sled::apply<ReturnT>(func, *tuple_ptr);
+    };
+}
+
+class Test {
+public:
+    void Show(int a, double b, std::string c) { LOGV(kTag, "a={}, b={}, c={}", a, b, c); }
+
+    // int Show(int a, int b, const std::string &c)
+    // {
+    //     LOGV(kTag, "a={}, b={}, c={}", a, b, c);
+    //     return 0;
+    // }
+};
+
+class Adder {
+public:
+    int Add(int a, int b) { return a + b; }
+    friend class meta::reflection::Method;
+};
+
+// Add(int, int)
+class AdderMethod : public meta::reflection::Method {
+public:
+    AdderMethod(const std::string &name, std::shared_ptr<meta::reflection::Class> parent)
+        : meta::reflection::Method(name, parent)
+    {
+        fun_ = MemberFunctionWrapper<Adder, int, int, int>(&Adder::Add);
+    }
+
+    int Add(int a, int b) { return a + b; }
+
+protected:
+    meta::reflection::any InvokeImpl(void *instance,
+                                     const std::vector<void *> &params) const override
+    {
+        Adder *adder = reinterpret_cast<Adder *>(instance);
+        using tuple = std::tuple<int, int>;
+        auto t = std::make_tuple(adder,
+                                 *reinterpret_cast<int *>(params[0]),
+                                 *reinterpret_cast<int *>(params[1]));
+        return fun_(&t);
+    }
+
+private:
+    std::function<int(sled::any)> fun_;
+};
+
 int
 main(int argc, char *argv[])
 {
+    auto clz = std::make_shared<meta::reflection::Class>("Test");
+    class Adder adder;
+    meta::reflection::Method *method = new AdderMethod("Add", clz);
+    for (int i = 0; i < 10; i++) {
+        LOGV("", "{}+{}={}", i, i, meta::reflection::any_cast<int>(method->Invoke(&adder, i, i)));
+    }
+
+    void (Test::*p)(int, double, std::string) = &Test::Show;
+
+    LOGV(kTag, "{}", meta::reflection::PrettyName<meta::Registry>());
     // LOGI(kTag, "cwd={}", sled::Path::Current().ToString());
     meta::Parser parser;
     int i = 0;
@@ -34,5 +151,10 @@ main(int argc, char *argv[])
         LOGI(kTag, "{}\n{}", meta::Registry::Instance()->GetQualifiedName(clz), clz->ToString());
     }
 
+    Generator generator1("template/class_proxy_include.inja");
+    generator1.Generate();
+    Generator generator2("template/class_proxy_source.inja");
+    generator2.Generate();
+
     return 0;
 }

src/registry.cc

@@ -39,7 +39,7 @@ void
 Registry::AddClass(Class *cls)
 {
     if (!cls->ShouldGenerate()) { return; }
-    const std::string key = sled::StrJoin(cls->namespaces(), "::") + "::" + cls->name();
+    const std::string key = sled::StrJoin(cls->namespaces(), "::") + "::" + cls->Name();
     if (class_by_qualified_name_.find(key) == class_by_qualified_name_.end()) {
         class_by_qualified_name_[key] = cls;
         qualified_name_by_class_[cls] = key;

src/types/base_type.cc

@@ -19,11 +19,11 @@ BaseType::BaseType(const Cursor &cursor, const std::vector<std::string> &namespa
     }
 }
 
-std::string
-BaseType::type_name() const
-{
-    return cursor_.GetType().GetDisplayName();
-}
+// std::string
+// BaseType::type_name() const
+// {
+//     return sled::StrJoin(namespaces_, "::") + "::" + name();
+// }
 
 std::vector<std::string>
 BaseType::GetProperties(const Cursor &annotation_cursor)
@@ -38,7 +38,7 @@ std::string
 BaseType::ToString() const
 {
     std::stringstream ss;
-    ss << name();
+    ss << Name();
     if (!properties_.empty()) { ss << " /*" << sled::StrJoin(properties(), ",") << "*/"; }
     return ss.str();
 }

src/types/base_type.h

@@ -2,8 +2,28 @@
 #ifndef META_TYPES_TYPE_INTERFACE_H
 #define META_TYPES_TYPE_INTERFACE_H
 #include "clang/cursor.h"
+#include <algorithm>
 
 namespace meta {
+/**
+ * Class (class test)
+ *   - is_const = false
+ *   - name = test
+ *   - type_name = test
+ * Method (int foo(int a, int b) const)
+ *   - is_const = true
+ *   - name = foo
+ *   - type = int(int, int) const
+ *   - type_name = int(int, int) const
+ *   - return_type = int
+ *   - arguments = [int, int]
+ *   - argument_count = 2
+ * Field (const int foo)
+ *   - is_const = true
+ *   - name = foo
+ *   - type const int
+ *   - type_name = const int
+ **/
 class BaseType {
 public:
     static std::vector<std::string> GetProperties(const Cursor &annotation_cursor);
@@ -11,22 +31,27 @@ public:
     BaseType(const Cursor &cursor, const std::vector<std::string> &namespaces);
     virtual ~BaseType() = default;
 
-    virtual std::string name() const { return cursor_.GetSpelling(); }
+    virtual bool IsConst() const { return false; }
 
-    virtual std::string type_name() const;
+    virtual std::string Name() const { return cursor_.GetSpelling(); }
+
+    virtual std::string TypeName() const = 0;
 
     virtual std::string ToString() const;
 
     virtual bool ShouldGenerate() const { return !properties_.empty(); }
 
-    bool IsPublic() const { return clang_getCXXAccessSpecifier(cursor_.handle()) == CX_CXXPublic; }
+    inline bool IsPublic() const
+    {
+        return clang_getCXXAccessSpecifier(cursor_.handle()) == CX_CXXPublic;
+    }
 
-    bool IsPrivate() const
+    inline bool IsPrivate() const
     {
         return clang_getCXXAccessSpecifier(cursor_.handle()) == CX_CXXPrivate;
     }
 
-    bool IsProtected() const
+    inline bool IsProtected() const
     {
         return clang_getCXXAccessSpecifier(cursor_.handle()) == CX_CXXProtected;
     }

src/types/class.cc

@@ -13,6 +13,8 @@ Class::Class(const Cursor &cursor, const std::vector<std::string> &namespaces)
     for (auto &child : cursor.GetChildren()) {
         switch (child.GetKind()) {
         case CXCursor_Constructor:
+            constructors_.push_back(new Method(child, namespaces_, *this));
+            should_generate_ = should_generate_ || constructors_.back()->ShouldGenerate();
             break;
         case CXCursor_CXXMethod:
             methods_.push_back(new Method(child, namespaces_, *this));
@@ -69,4 +71,10 @@ Class::ToString() const
     return ss.str();
 }
 
+std::string
+Class::TypeName() const
+{
+    return sled::StrJoin(namespaces_, "::") + "::" + Name();
+}
+
 }// namespace meta

src/types/class.h

@@ -17,14 +17,18 @@ public:
     Class(const Cursor &cursor, const std::vector<std::string> &namespaces);
     ~Class() override;
     std::string ToString() const override;
+    std::string TypeName() const override;
 
     bool ShouldGenerate() const override { return should_generate_; }
 
+    const std::vector<Method *> &constructors() const { return constructors_; }
+
     const std::vector<Field *> &fields() const { return fields_; }
 
     const std::vector<Method *> &methods() const { return methods_; }
 
 private:
+    std::vector<Method *> constructors_;
     std::vector<Field *> fields_;
     std::vector<Method *> methods_;
     bool should_generate_;

src/types/field.cc

@@ -19,7 +19,13 @@ Field::Field(const Cursor &cursor, const std::vector<std::string> &namespaces, c
 std::string
 Field::ToString() const
 {
-    return type_name() + " " + BaseType::ToString();
+    return TypeName() + " " + BaseType::ToString();
+}
+
+std::string
+Field::TypeName() const
+{
+    return cursor().GetType().GetDisplayName();
 }
 
 }// namespace meta

src/types/field.h

@@ -13,6 +13,7 @@ public:
     ~Field() override = default;
 
     std::string ToString() const override;
+    std::string TypeName() const override;
 
 private:
     const Class &parent_;

src/types/method.cc

@@ -21,7 +21,7 @@ Method::ToString() const
 {
     std::stringstream ss;
     // ss << type_name();
-    ss << return_type_.GetDisplayName() << " " << name() << "(";
+    ss << return_type_.GetDisplayName() << " " << Name() << "(";
     for (unsigned i = 0; i < arguments_.size(); ++i) {
         ss << arguments_[i].GetDisplayName();
         if (i < arguments_.size() - 1) { ss << ", "; }
@@ -33,6 +33,13 @@ Method::ToString() const
     return ss.str();
 }
 
+std::string
+Method::TypeName() const
+{
+    // return sled::StrJoin(namespaces_, "::") + "::" + name();
+    return cursor().GetType().GetDisplayName();
+}
+
 bool
 Method::IsConst() const
 {

src/types/method.h

@@ -11,11 +11,15 @@ public:
     ~Method() override = default;
 
     std::string ToString() const override;
+    std::string TypeName() const override;
 
-    bool IsConst() const;
-    CursorType return_type() const;
-    CursorType argument(unsigned index) const;
-    std::vector<CursorType> arguments() const;
+    bool IsConst() const override;
+
+    CursorType return_type() const { return return_type_; }
+
+    CursorType argument(unsigned index) const { return arguments_[index]; }
+
+    std::vector<CursorType> arguments() const { return arguments_; };
 
 private:
     const Class &parent_;

src/utils.h

@@ -2,13 +2,37 @@
 #ifndef META_UTILS_H
 #define META_UTILS_H
 #include <clang-c/Index.h>
+#include <sled/strings/utils.h>
 #include <string>
 
 namespace meta {
-    inline std::string ToString(const CXString& str) {
+inline std::string
+ToString(const CXString &str)
+{
     std::string result = clang_getCString(str);
     clang_disposeString(str);
     return result;
-    }
 }
-#endif // META_UTILS_H
+
+inline std::string
+RemoveTypeSpace(const std::string &str, const std::string &chars = "[]()<>*&:")
+{
+    std::string res = sled::Trim(str);
+    // remove right space
+    for (size_t i = 0; i < str.size();) {
+        if (str[i] == ' ') {
+            bool left_is_chars = i > 0 && chars.find(str[i - 1]) != std::string::npos;
+            bool right_is_chars
+                = (i + 1 < str.size()) && chars.find(str[i + 1]) != std::string::npos;
+            if (left_is_chars || right_is_chars) {
+                res.erase(i, 1);
+            } else {
+                ++i;
+            }
+        }
+    }
+    return res;
+}
+
+}// namespace meta
+#endif// META_UTILS_H

template/class_proxy_include.inja

@@ -0,0 +1,34 @@
+#pragma once
+#ifndef META_GEN_{{class_name}}_PROXY_H
+#define META_GEN_{{class_name}}_PROXY_H
+
+#include "runtime/reflection.h"
+
+namespace meta {
+namespace reflection {
+
+class {{class_name}}_Class : public ::meta::reflection::Class {
+};
+
+class {{class_name}}_Field : public ::meta::reflection::Field {
+public:
+    {{class_name}}_Field(const std::string& name, std::shared_ptr<::meta::reflection::Class> parent);
+
+protected:
+    ::meta::reflection::any GetImpl(void* instance) const override;
+    void SetImpl(void* instance, const ::meta::reflection::any& value) const override;
+};
+
+class {{class_name}}_Method : public ::meta::reflection::Method {
+public:
+    {{class_name}}_Method(const std::string& name, std::shared_ptr<::meta::reflection::Class> parent);
+
+protected:
+    ::meta::reflection::any InvokeImpl(void* instance, const std::vector<void *> &params) const override;
+};
+
+} // namespace reflection
+} // namespace meta
+
+#endif // META_GEN_{{class_name}}_PROXY_H
+

template/class_proxy_source.inja

@@ -0,0 +1,78 @@
+#include "{{class_name}}.gen.h"
+#include <string.h>
+
+namespace meta {
+namespace reflection {
+
+/**
+ * Field
+ **/
+
+{{class_name}}_Field::{{class_name}}_Field(
+    const std::string& name, 
+    std::shared_ptr<::meta::reflection::Class> parent) 
+: ::meta::reflection::Field(name, parent) {}
+
+::meta::reflection::any GetImpl(void* instance) const {
+    ::{{class_namespace}}::{{class_name}}* obj = (::{{class_namespace}}::{{class_name}}*)instance;
+
+{% for field in class_fields %}
+    if (strcmp(name().c_str(), "{{field.name}}") == 0) { return obj->{{field.name}}; }
+{% endfor %}
+}
+
+void SetImpl(void* instance, const ::meta::reflection::any& value) const {
+    ::{{class_namespace}}::{{class_name}}* obj = (::{{class_namespace}}::{{class_name}}*)instance;
+{% for field in class_fields %}
+{% if not field.is_const %}
+    if(strcmp(name().c_str(), "{{field.name}}") == 0) { obj->{{field.name}} = value.as<{{field.type}}>();}
+{% endif %}
+{% endfor %}
+}
+
+
+
+/**
+ * Method
+ **/
+{{class_name}}_Method::{{class_name}}_Method(
+    const std::string& name, 
+    std::shared_ptr<::meta::reflection::Class> parent) 
+: ::meta::reflection::Method(name, parent) {}
+
+::meta::reflection::any InvokeImpl(void* instance, const std::vector<void *> &params) const {
+    ::{{class_namespace}}::{{class_name}}* obj = (::{{class_namespace}}::{{class_name}}*)instance;
+
+{% for method in class_methods %}
+    {# start if(, else if(, #}
+    {% if loop.is_first %}
+    if (strcmp(name.c_str(), "{{method.name}}") == 0) {
+    {% else %}
+    } else if (strcmp(name.c_str(), "{{method.name}}") == 0) {
+    {% endif %}
+
+    {% if method.return_type != "void" %}
+        return obj->{{method.name}}(
+            {% for param in method.params%}
+                *({{param.type}}*)params[{{loop.index}}]{% if not loop.is_last %}, {% endif %}
+            {% endfor %}
+        );
+    {% else %}
+        obj->{{method.name}}(
+            {% for param in method.params%}
+                *({{param.type}}*)params[{{loop.index}}]{% if not loop.last %}, {% endif %}
+            {% endfor %}
+        );
+        return;
+    {% endif %}
+
+    {% if loop.is_last %}
+    }
+    {% endif %}
+
+{% endfor %}
+}
+
+} // namespace reflection
+} // namespace meta
+