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xo-refcnt: + pretty_refcnt.hpp

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This commit is contained in:
Roland Conybeare 2025-07-13 21:19:13 -05:00
commit 232c6d7b22
4 changed files with 80 additions and 2 deletions
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2
xo-refcnt/CMakeLists.txt
View file

@ -13,7 +13,7 @@ xo_cxx_toplevel_options3()
# c++ settings
set(XO_PROJECT_NAME refcnt) # is this used?
set(PROJECT_CXX_FLAGS "")
set(PROJECT_CXX_FLAGS "-ftemplate-backtrace-limit=0")
#set(PROJECT_CXX_FLAGS "-fconcepts-diagnostics-depth=2") # gcc-only!
add_definitions(${PROJECT_CXX_FLAGS})

77
xo-refcnt/include/xo/refcnt/pretty_refcnt.hpp Normal file
View file

@ -0,0 +1,77 @@
/* @file pretty_refcnt.hpp
*
* author: Roland Conybeare, Jul 2025
*/
#pragma once
#include "Refcounted.hpp"
#include "xo/indentlog/print/pretty.hpp"
namespace xo {
namespace print {
template <>
struct ppdetail<xo::ref::Refcount *> {
static bool print_upto(ppstate * pps, const xo::ref::Refcount * x) {
return ppdetail_atomic<const xo::ref::Refcount *>::print_upto(pps, x);
}
static void print_pretty(ppstate * pps, const xo::ref::Refcount * x) {
ppdetail_atomic<const xo::ref::Refcount *>::print_pretty(pps, x);
}
};
template <typename T>
struct ppdetail<rp<T>> {
static bool print_upto(ppstate * pps, const rp<T> & x) {
if (auto p = x.get()) {
return ppdetail<T>::print_upto(pps, *p);
} else {
/* note: degenerate case here, since never write newline for nullptr */
pps->write("<nullptr ");
pps->write(reflect::type_name<T>());
pps->write(">");
return pps->has_margin();
}
}
static void print_pretty(ppstate * pps, const rp<T> & x) {
if (auto p = x.get()) {
ppdetail<T>::print_pretty(pps, *p);
} else {
pps->write("<nullptr ");
pps->write(reflect::type_name<T>());
pps->write(">");
}
}
};
template <typename T>
struct ppdetail<bp<T>> {
static bool print_upto(ppstate * pps, const bp<T> & x) {
if (auto p = x.get()) {
return ppdetail<T>::print_upto(pps, *p);
} else {
/* note: degenerate case here, since never write newline for nullptr */
pps->write("<nullptr ");
pps->write(reflect::type_name<T>());
pps->write(">");
return pps->has_margin();
}
}
static void print_pretty(ppstate * pps, const bp<T> & x) {
if (auto p = x.get()) {
ppdetail<T>::print_pretty(pps, *p);
} else {
pps->write("<nullptr ");
pps->write(reflect::type_name<T>());
pps->write(">");
}
}
};
}
}

1
xo-refcnt/src/Refcounted.cpp
View file

@ -1,6 +1,7 @@
/* @file Refcounted.cpp */
#include "Refcounted.hpp"
#include "pretty_refcnt.hpp"
namespace xo {
namespace ref {