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xo-expression: ++ example to build primitive

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This commit is contained in:
Roland Conybeare 2024-06-17 12:25:46 -04:00
commit 6b0f49970a
1 changed files with 22 additions and 2 deletions
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example/ex1/ex1.cpp
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@ -1,14 +1,34 @@
/** @file ex1.cpp **/
#include "xo/expression/Constant.hpp"
#include "xo/expression/Primitive.hpp"
#include <iostream>
#include <cmath>
int
main() {
using xo::ast::make_constant;
using xo::ast::make_primitive;
using std::cout;
using std::endl;
auto expr = make_constant(7);
{
auto expr = make_constant(7);
}
{
auto expr = make_primitive("sqrt", &::sqrt);
auto expr_td = expr->value_td();
cout << "expr_td: " << expr_td->short_name() << endl;
cout << "expr_td->is_function(): " << expr_td->is_function() << endl;
cout << "expr_td->fn_retval(): " << expr_td->fn_retval()->short_name() << endl;
cout << "expr_td->n_fn_arg(): " << expr_td->n_fn_arg() << endl;
for (uint32_t i = 0; i < expr_td->n_fn_arg(); ++i)
cout << "expr_td->fn_arg(" << i << "): " << expr_td->fn_arg(i)->short_name() << endl;
cout << "expr_td->fn_is_noexcept(): " << expr_td->fn_is_noexcept() << endl;
}
}
/** end ex1.cpp **/