https://github.com/leozhang1/QtInterpreter ASTNode.h代码展示

下面是ASTNode.h的代码展示：

#ifndef ASTNODE_H
#define ASTNODE_H

#include <vector>
#include <string>
#include <memory>

// Forward declaration of ASTNode class
class ASTNode;

// Type definitions for shared pointer and vector of ASTNode objects
typedef std::shared_ptr<ASTNode> ASTNodePtr;
typedef std::vector<ASTNodePtr> ASTNodeList;

// Enum for different node types
enum class NodeType {
    Program,
    Statement,
    Expression,
    NumberLiteral,
    StringLiteral,
    Identifier,
    BinaryExpression,
    UnaryExpression,
    AssignmentExpression,
    VariableDeclaration,
    FunctionDeclaration,
    CallExpression,
    IfStatement,
    WhileStatement,
    ForStatement,
    ReturnStatement
};

// Class for AST nodes
class ASTNode {
public:
    // Constructor
    ASTNode(NodeType type);

    // Destructor
    virtual ~ASTNode() {}

    // Getter and setter for node type
    NodeType getType() const { return m_type; }
    void setType(NodeType type) { m_type = type; }

    // Getter and setter for node location in source code
    int getLine() const { return m_line; }
    void setLine(int line) { m_line = line; }
    int getColumn() const { return m_column; }
    void setColumn(int column) { m_column = column; }

    // Add a child node to the list of children
    void addChild(const ASTNodePtr& child);

    // Get the list of children nodes
    const ASTNodeList& getChildren() const { return m_children; }

    // Accept method for visitor pattern
    virtual void accept(class ASTVisitor& visitor);

private:
    NodeType m_type; // Node type
    int m_line; // Line number in source code
    int m_column; // Column number in source code
    ASTNodeList m_children; // List of child nodes
};

#endif // ASTNODE_H

这个头文件定义了 ASTNode 类，用于表示抽象语法树中的节点。它包括了节点的类型、位置信息、子节点列表等属性，并提供了一些方法用于添加和获取子节点、访问者模式等。此外，还定义了一些枚举类型用于表示不同的节点类型。