29 lines
783 B
C++
29 lines
783 B
C++
#ifndef ENVIRONMENT_HH
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#define ENVIRONMENT_HH
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#include "../tokenizer.hh"
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#include <memory>
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#include <string>
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#include <unordered_map>
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struct Environment {
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Environment() : enclosing{nullptr}, values{} {}
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Environment(std::shared_ptr<Environment> enclosing) : enclosing{enclosing}, values{} {}
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Environment(const Environment &other);
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Environment(Environment &&other) noexcept;
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Environment &operator=(const Environment &other);
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Environment &operator=(Environment &&other) noexcept;
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~Environment() = default;
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void define(const std::string &name, const Object &value);
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void assign(const Token &name, const Object &value);
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Object get(const Token &name);
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private:
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std::shared_ptr<Environment> enclosing;
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std::unordered_map<std::string, Object> values;
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};
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#endif
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