#ifndef EXPRESSION_H
#define EXPRESSION_H

#include "scanner.h"

typedef enum {
    EXPRESSION,
    LITERAL,
    GROUPING,
    UNARY,
    BINARY,
    OPERATOR
} ExpressionType;

typedef struct Expr expression;

struct binary {
    Expr* left;
    TokenType op;
    Expr* right;
};

struct grouping {
    Expr* expression;
};

struct literal {
    TokenType type; //Probably something to this effect.
    void* object;
};

struct unary {
    TokenType op;
    Expr* right;
};

struct Expr {
    ExpressionType type;
    union ex {
        struct binary Binary;
        struct grouping Grouping;
        struct literal Literal;
        struct unary Unary;
    } expression;
};

#endif