17 lines
375 B
C++
17 lines
375 B
C++
#include "type_env.hpp"
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type_ptr type_env::lookup(const std::string& name) const {
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auto it = names.find(name);
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if(it != names.end()) return it->second;
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if(parent) return parent->lookup(name);
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return nullptr;
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}
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void type_env::bind(const std::string& name, type_ptr t) {
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names[name] = t;
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}
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type_env type_env::scope() const {
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return type_env(this);
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}
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