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xo-expression: + Expression::nested_layer()

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This commit is contained in:
Roland Conybeare 2024-07-03 16:18:26 -04:00
commit 91a5a2b844
10 changed files with 61 additions and 2 deletions
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13
include/xo/expression/Apply.hpp
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@ -63,6 +63,19 @@ namespace xo {
return n;
}
virtual std::size_t visit_layer(VisitFn visitor_fn) override {
std::size_t n = 1;
visitor_fn(this);
n += fn_->visit_layer(visitor_fn);
for (const auto & arg : argv_)
n += arg->visit_layer(visitor_fn);
return n;
}
virtual ref::rp<Expression> xform_layer(TransformFn xform_fn) override {
this->fn_ = fn_->xform_layer(xform_fn);