axmol/extensions/Particle3D/PU/CCPUScriptCompiler.h

/****************************************************************************
 Copyright (C) 2013 Henry van Merode. All rights reserved.
 Copyright (c) 2015-2016 Chukong Technologies Inc.
 Copyright (c) 2017-2018 Xiamen Yaji Software Co., Ltd.

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 of this software and associated documentation files (the "Software"), to deal
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 The above copyright notice and this permission notice shall be included in
 all copies or substantial portions of the Software.

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#ifndef __CC_PU_SCRIPT_COMPILER_H__
#define __CC_PU_SCRIPT_COMPILER_H__
#include "base/CCRef.h"
#include "extensions/Particle3D/PU/CCPUScriptParser.h"

#include <list>
#include <unordered_map>

NS_CC_BEGIN

/** This enum holds the types of the possible abstract nodes */
enum PUAbstractNodeType
{
    ANT_UNKNOWN,
    ANT_ATOM,
    ANT_OBJECT,
    ANT_PROPERTY,
    ANT_IMPORT,
    ANT_VARIABLE_SET,
    ANT_VARIABLE_ACCESS
};
class CC_EX_DLL PUAbstractNode;
typedef std::list<PUAbstractNode*> PUAbstractNodeList;

class CC_EX_DLL PUAbstractNode
{
public:
    std::string file;
    unsigned int line;
    PUAbstractNodeType type;
    PUAbstractNode* parent;
    Ref* context;

    // contextd//
    //    Any context; // A holder for translation context data
public:
    PUAbstractNode(PUAbstractNode* ptr) : line(0), type(ANT_UNKNOWN), parent(ptr), context(nullptr) {}
    virtual ~PUAbstractNode() {}
    /// Returns a new AbstractNode which is a replica of this one.
    virtual PUAbstractNode* clone() const = 0;
    /// Returns a string value depending on the type of the AbstractNode.
    virtual std::string getValue() const = 0;
};

/** This specific abstract node represents a script object */
class CC_EX_DLL PUObjectAbstractNode : public PUAbstractNode
{
private:
    hlookup::string_map<std::string> _env;

public:
    std::string name, cls;
    std::vector<std::string> bases;
    unsigned int id;
    bool abstract;
    PUAbstractNodeList children;
    PUAbstractNodeList values;
    PUAbstractNodeList overrides;  // For use when processing object inheritance and overriding
public:
    PUObjectAbstractNode(PUAbstractNode* ptr);
    virtual ~PUObjectAbstractNode();
    PUAbstractNode* clone() const;
    std::string getValue() const;

    void addVariable(std::string_view name);
    void setVariable(std::string_view name, std::string_view value);
    std::pair<bool, std::string> getVariable(std::string_view name) const;
    const hlookup::string_map<std::string>& getVariables() const;
};

/** This abstract node represents a script property */
class CC_EX_DLL PUPropertyAbstractNode : public PUAbstractNode
{
public:
    std::string name;
    unsigned int id;
    PUAbstractNodeList values;

public:
    PUPropertyAbstractNode(PUAbstractNode* ptr);
    virtual ~PUPropertyAbstractNode();
    PUAbstractNode* clone() const;
    std::string getValue() const;
};

/** This is an abstract node which cannot be broken down further */
class CC_EX_DLL PUAtomAbstractNode : public PUAbstractNode
{
public:
    std::string value;
    unsigned int id;

public:
    PUAtomAbstractNode(PUAbstractNode* ptr);
    PUAbstractNode* clone() const;
    std::string getValue() const;

private:
    void parseNumber() const;
};

class CC_EX_DLL PUParticleSystem3D;
class CC_EX_DLL PUScriptCompiler
{

private:
    hlookup::string_map<PUAbstractNodeList>::iterator compile(const PUConcreteNodeList& nodes, std::string_view file);
    // is it excluded?//
    bool isNameExcluded(std::string_view cls, PUAbstractNode* parent);

public:
    typedef std::unordered_map<std::string, unsigned int> IdMap;

    static PUScriptCompiler* Instance();

    void setParticleSystem3D(PUParticleSystem3D* pu);

    const PUAbstractNodeList* compile(std::string_view file, bool& isFirstCompile);

    void convertToAST(const PUConcreteNodeList& nodes, PUAbstractNodeList& aNodes);

    std::unordered_map<std::string, std::string> env;

private:
    PUScriptCompiler();
    virtual ~PUScriptCompiler();

    void visitList(const PUConcreteNodeList& nodes);
    void visit(PUConcreteNode* node);

private:
    hlookup::string_map<PUAbstractNodeList> _compiledScripts;
    PUAbstractNode* _current;
    PUAbstractNodeList* _nodes;
    PUParticleSystem3D* _PUParticleSystem3D;
};

NS_CC_END

#endif /* defined(__ssaafsdf__CCScriptCompile__) */