Value.hpp

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#pragma once
 
#include "AstGlobal.h"
#include "AstScript/Expr.hpp"
#include "AstScript/ScriptAPI.hpp"
#include "AstUtil/OrderedMap.hpp"
#include <map>
 
AST_NAMESPACE_BEGIN
 
 
class ValDict;
using ValueMapType = OrderedMap<std::string, SharedPtr<Value>>;
using NamedValueVector = std::vector<std::pair<std::string, SharedPtr<Value>>>;
 
class AST_SCRIPT_API Value: public Expr
{
public:
    static Value& NullValue();
 
    using Expr::Expr;
    ~Value() override = default;
 
    Value* eval() const final{return const_cast<Value*>(this);}
    
    errc_t setValue(Value*) final{return eErrorReadonly;}
public:
    void insert(const std::string& name, Value* value);
    template<typename T>
    void insert(const std::string& name, T value)
    {
        insert(name, aNewValue(value));
    }
    Value& operator[](const std::string& name);
    const Value& operator[](const std::string& name) const;
    Value& operator[](const char* name);
    const Value& operator[](const char* name) const;
    Value& operator[](size_t index);
    const Value& operator[](size_t index) const;
 
    bool isNull() const;
    bool isBool() const;
    bool isInt() const;
    bool isDouble() const;
    bool isQuantity() const;
    bool isString() const;
 
    std::string toString() const;
    Quantity toQuantity() const;
    double toDouble() const;
    int toInt() const;
    bool toBool() const;
    
    operator std::string() const;
    operator Quantity() const;
    operator double() const;
    operator int() const;
    operator bool() const;
 
    ValDict* toValDict() const;
    const NamedValueVector& items() const;
 
    const Value& operator>>(bool& val) const;
    const Value& operator>>(int& val) const;
    const Value& operator>>(double& val) const;
 
private:
 
};
 
AST_NAMESPACE_END