xo-umbrella2/xo-expression/include/xo/expression/FunctionInterface.hpp

33 lines
1,009 B
C++

/** @file FunctionInterface.hpp
*
* Author: Roland Conybeare
**/
#pragma once
#include "Expression.hpp"
//#include <cstdint>
namespace xo {
namespace scm {
class FunctionInterface : public Expression {
public:
FunctionInterface(exprtype extype, TypeDescr fn_type)
: Expression(extype, fn_type) {}
/** downcast from Expression **/
static bp<FunctionInterface> from(bp<Expression> x) {
return bp<FunctionInterface>::from(x);
}
virtual const std::string & name() const = 0;
virtual int n_arg() const = 0; // { return this->value_td()->n_fn_arg(); }
virtual TypeDescr fn_retval() const = 0; // { return this->value_td()->fn_retval(); }
virtual TypeDescr fn_arg(uint32_t i) const = 0; // { return this->value_td()->fn_arg(i); }
private:
}; /*FunctionInterface*/
} /*namespace scm*/
} /*namespace xo*/
/** end FunctionInterface.hpp **/