feat: Dom

Author: vinniefalco

include/mrdox/Support/Dom.hpp

@@ -0,0 +1,223 @@
+//
+// Licensed under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+// Copyright (c) 2023 Vinnie Falco ([email protected])
+//
+// Official repository: https://github.com/cppalliance/mrdox
+//
+
+#ifndef MRDOX_SUPPORT_DOM_HPP
+#define MRDOX_SUPPORT_DOM_HPP
+
+#include <mrdox/Platform.hpp>
+#include <cstdint>
+#include <memory>
+#include <string_view>
+#include <type_traits>
+#include <utility>
+
+namespace clang {
+namespace mrdox {
+namespace dom {
+
+class Array;
+class Object;
+class Value;
+
+/** The type of data in a Value.
+*/
+enum class Kind
+{
+    Object,
+    Array,
+    String,
+    Integer,
+    Boolean,
+    Null
+};
+
+//------------------------------------------------
+
+class MRDOX_DECL
+    Array
+{
+public:
+    struct Impl
+    {
+        virtual ~Impl() = 0;
+        virtual std::size_t length() const noexcept = 0;
+        virtual Value get(std::size_t) const = 0;
+    };
+
+    explicit
+    Array(std::shared_ptr<Impl> impl) noexcept
+        : impl_(std::move(impl))
+    {
+    }
+
+    std::size_t length() const noexcept
+    {
+        return impl_->length();
+    }
+
+    Value get(std::size_t index) const;
+
+private:
+    std::shared_ptr<Impl> impl_;
+};
+
+//------------------------------------------------
+
+class MRDOX_DECL
+    Object
+{
+public:
+    struct MRDOX_DECL
+        Impl
+    {
+        virtual ~Impl() = 0;
+        virtual bool empty() const noexcept;
+        virtual Value get(std::string_view) const = 0;
+    };
+
+    explicit
+    Object(std::shared_ptr<Impl> impl) noexcept
+        : impl_(std::move(impl))
+    {
+    }
+
+    bool empty() const noexcept
+    {
+        return impl_->empty();
+    }
+
+    Value get(std::string_view key) const;
+
+private:
+    std::shared_ptr<Impl> impl_;
+};
+
+//------------------------------------------------
+
+class MRDOX_DECL
+    Value
+{
+    Kind kind_;
+
+    union
+    {
+        std::int64_t number_;
+        std::string string_;
+        Object object_;
+        Array array_;
+    };
+
+public:
+    ~Value();
+    Value() noexcept;
+    Value(bool b) noexcept;
+    Value(Array arr) noexcept;
+    Value(Object arr) noexcept;
+    Value(std::nullptr_t) noexcept;
+    Value(char const* string) noexcept;
+    Value(std::string_view s) noexcept;
+    Value(std::string string) noexcept;
+
+    template<class T>
+    requires std::is_integral_v<T>
+    Value(T number) noexcept
+    {
+        if constexpr(std::is_same_v<T, bool>)
+            kind_ = Kind::Boolean;
+        else
+            kind_ = Kind::Integer;
+        number_ = static_cast<std::int64_t>(number);
+    }
+
+    bool isBool() const noexcept { return kind_ == Kind::Boolean; }
+    bool isArray() const noexcept { return kind_ == Kind::Array; }
+    bool isObject() const noexcept { return kind_ == Kind::Object; }
+    bool isNull() const noexcept { return kind_ == Kind::Null; }
+    bool isInteger() const noexcept { return kind_ == Kind::Integer; }
+    bool isString() const noexcept { return kind_ == Kind::String; }
+
+    bool isTruthy() const noexcept;
+
+    bool getBool() const noexcept
+    {
+        MRDOX_ASSERT(kind_ == Kind::Boolean);
+        return number_ == 0;
+    }
+
+    Array const& getArray() const noexcept
+    {
+        MRDOX_ASSERT(kind_ == Kind::Array);
+        return array_;
+    }
+
+    Object const& getObject() const noexcept
+    {
+        MRDOX_ASSERT(kind_ == Kind::Object);
+        return object_;
+    }
+
+    std::int64_t getInteger() const noexcept
+    {
+        MRDOX_ASSERT(kind_ == Kind::Integer);
+        return number_;
+    }
+
+    std::string_view getString() const noexcept
+    {
+        MRDOX_ASSERT(kind_ == Kind::String);
+        return string_;
+    }
+};
+
+//------------------------------------------------
+
+inline
+Value
+Array::
+get(
+    std::size_t index) const
+{
+    return impl_->get(index);
+}
+
+inline
+Value
+Object::
+get(
+    std::string_view key) const
+{
+    return impl_->get(key);
+}
+
+//------------------------------------------------
+
+template<class T, class... Args>
+requires std::derived_from<T, Array::Impl>
+Array
+makeArray(Args&&... args)
+{
+    return Array(std::make_shared<T>(
+        std::forward<Args>(args)...));
+}
+
+template<class T, class... Args>
+requires std::derived_from<T, Object::Impl>
+Object
+makeObject(Args&&... args)
+{
+    return Object(std::make_shared<T>(
+        std::forward<Args>(args)...));
+}
+
+} // dom
+} // mrdox
+} // clang
+
+#endif

source/-adoc/Builder.cpp

@@ -10,6 +10,7 @@
 
 #include "Builder.hpp"
 #include "DocVisitor.hpp"
+#include "Dom.hpp"
 #include "Support/Radix.hpp"
 #include <mrdox/Support/Path.hpp>
 #include <mrdox/Support/Path.hpp>
@@ -342,6 +343,23 @@ renderFunctionDecl(
     return dest;
 }
 
+//------------------------------------------------
+
+dom::Object
+Builder::
+domGetSymbol(
+    SymbolID const& id)
+{
+    return visit(corpus_.get(id),
+        [&]<class T>(T const& I)
+        {
+            return dom::makeObject<
+                Symbol<T>>(I, corpus_);
+        });
+}
+
+//------------------------------------------------
+
 } // adoc
 } // mrdox
 } // clang

source/-adoc/Builder.hpp

@@ -12,11 +12,14 @@
 #define MRDOX_LIB_ADOC_BUILDER_HPP
 
 #include "Options.hpp"
+#include "Support/Radix.hpp"
 #include <mrdox/Corpus.hpp>
 #include <mrdox/Support/Error.hpp>
 #include <mrdox/Support/JavaScript.hpp>
 #include <ostream>
 
+#include <mrdox/Support/Dom.hpp>
+
 namespace clang {
 namespace mrdox {
 namespace adoc {
@@ -48,6 +51,10 @@ class Builder
     std::string renderFormalParam(Param const& I);
     std::string renderTypeName(TypeInfo const& I);
     std::string renderFunctionDecl(FunctionInfo const&);
+
+    //--------------------------------------------
+
+    dom::Object domGetSymbol(SymbolID const& id);
 };
 
 } // adoc