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Change coral::path::joined to return coral::expected

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kayomn 2023-03-01 00:30:37 +00:00
parent 261b62fc2d
commit c53fd30cc2
1 changed files with 13 additions and 7 deletions
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20
source/coral/files.cpp
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@ -7,6 +7,15 @@ export namespace coral {
* Platform-generalized identifier for a resource in a [fs]. * Platform-generalized identifier for a resource in a [fs].
*/ */
struct path { struct path {
/**
* Errors that may occur during a path joining operation.
*
* [join_error::overflow] signals that the given path join exceeds the maximum valid length of a path.
*/
enum class join_error {
overflow,
};
/** /**
* Maximum path length. * Maximum path length.
*/ */
@ -83,14 +92,11 @@ export namespace coral {
} }
/** /**
* Returns a new [path] composed of the current path joined with `text`. * Attempts to create a new path composed from the current path joined with `text`, returning it or a
* * [join_error] if it failed.
* *Note:* should the new path exceed [max] bytes in size, an empty [path] is returned instead.
*
* *Note:* should the new path exceed [max] bytes in size, an empty [path] is returned instead.
*/ */
constexpr path joined(slice<char const> const & text) const { constexpr expected<path, join_error> joined(slice<char const> const & text) const {
if (text.length > this->buffer[max]) return path{}; if (text.length > this->buffer[max]) return join_error::overflow;
path joined_path = *this; path joined_path = *this;