It's a failure of locating precise source of the bug that would cause `var x = [i|i] 0` to segfault. New implementation DOES NOT have this bug.
41 lines
771 B
C++
41 lines
771 B
C++
#include <musique.hh>
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#include <iostream>
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std::shared_ptr<Env> Env::global = nullptr;
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std::shared_ptr<Env> Env::make()
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{
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auto new_env = new Env();
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assert(new_env, "Cannot construct new env");
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return std::shared_ptr<Env>(new_env);
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}
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Env& Env::force_define(std::string name, Value new_value)
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{
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variables.insert_or_assign(std::move(name), std::move(new_value));
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return *this;
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}
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Value* Env::find(std::string const& name)
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{
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for (Env *env = this; env; env = env->parent.get()) {
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if (auto it = env->variables.find(name); it != env->variables.end()) {
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return &it->second;
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}
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}
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return nullptr;
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}
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std::shared_ptr<Env> Env::enter()
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{
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auto next = make();
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next->parent = shared_from_this();
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return next;
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}
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std::shared_ptr<Env> Env::leave()
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{
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return parent;
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}
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