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deque-blog/dsl_arithmetic_5_partial_eval_algebra.h

Last active January 29, 2017 14:32
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dsl_arithmetic_5_partial_eval_algebra.h
auto partial_eval_alg(env const& env)
{
return [&env] (expression_r<expression> const& e) -> expression
{
if (auto* v = get_as_var(e))
{
auto it = env.find(*v);
if (it != env.end()) return cst(it->second);
return var(*v);
}
return e;
};
}
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