Roland Conybeare
aecabbb144
git-subtree-dir: xo-expression git-subtree-mainline:d0f5ccc1cegit-subtree-split:5ac3c03a0c
29 lines
733 B
C++
29 lines
733 B
C++
/* file binding_path.hpp
|
|
*
|
|
* author: Roland Conybeare, Jul 2024
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
namespace xo {
|
|
namespace ast {
|
|
/** @class path
|
|
*
|
|
* @brief path from the *use* of a variable to the environment
|
|
* providing its location.
|
|
**/
|
|
struct binding_path {
|
|
/** @of parent links to traverse. -1 if global. -2 if sentinel **/
|
|
int i_link_ = -2;
|
|
/** for variables bound in some local environment:
|
|
* slot# within that environment.
|
|
*
|
|
* Ignored if @ref i_link_ is -1
|
|
**/
|
|
int j_slot_ = 0;
|
|
}; /*binding_path*/
|
|
} /*namespace ast*/
|
|
} /*namespace xo*/
|
|
|
|
|
|
/* end binding_path.hpp */
|