xo-gc: docs build [WIP] + misc fixes + works w/ nix

CMakeLists.txt

@@ -98,7 +98,7 @@ add_subdirectory(xo-callback)
 add_subdirectory(xo-printable2)   # experiment w/ facet object model
 add_subdirectory(xo-alloc)
 add_subdirectory(xo-alloc2)       # experiment w/ facet object model
-add_subdirectory(xo-gc)
+add_subdirectory(xo-gc)           # experiment w/ facet object model
 add_subdirectory(xo-object)
 add_subdirectory(xo-object2)      # experiment w/ facet object model
 add_subdirectory(xo-procedure2)   # schematika procedure abstraction + runtime context (fomo)

default.nix

@@ -141,8 +141,9 @@ let
             xo-arena          = self.callPackage pkgs/xo-arena.nix          { buildDocs = true; };
             xo-facet          = self.callPackage pkgs/xo-facet.nix          {};
             xo-allocutil      = self.callPackage pkgs/xo-allocutil.nix      {};
-            xo-alloc          = self.callPackage pkgs/xo-alloc.nix          {}; # buildDocs = true;
+            xo-alloc          = self.callPackage pkgs/xo-alloc.nix          { buildDocs = true; };
             xo-alloc2         = self.callPackage pkgs/xo-alloc2.nix         { buildDocs = true; };
+            xo-gc             = self.callPackage pkgs/xo-gc.nix             { buildDocs = true; };
             xo-refcnt         = self.callPackage pkgs/xo-refcnt.nix         {};
             xo-ordinaltree    = self.callPackage pkgs/xo-ordinaltree.nix    {};
             xo-flatstring     = self.callPackage pkgs/xo-flatstring.nix     { buildDocs = true; buildExamples = true; };
@@ -491,6 +492,7 @@ in
     allocutil      = pkgs.xo-allocutil;
     alloc          = pkgs.xo-alloc;
     alloc2         = pkgs.xo-alloc2;
+    gc             = pkgs.xo-gc;
     ordinaltree    = pkgs.xo-ordinaltree;
     flatstring     = pkgs.xo-flatstring;
     pyutil         = pkgs.xo-pyutil;

index.rst

@@ -20,6 +20,7 @@ Some features: kalman filters, stochastic processes, complex event processing, s
    xo-flatstring/docs/index
    xo-ratio/docs/index
    xo-unit/docs/index
+   xo-gc/docs/index
    xo-tokenizer/docs/index
    xo-reader/docs/index
    xo-jit/docs/index

pkgs/xo-gc.nix

@@ -0,0 +1,61 @@
+{
+  # nixpkgs dependencies
+  lib, stdenv, cmake, catch2,
+  doxygen,
+
+  python3Packages,
+
+  sphinx, graphviz,
+
+  # xo dependencies
+  xo-alloc2,
+  xo-facet,
+  xo-randomgen,
+  xo-subsys,
+#  xo-reflectutil,
+#  xo-indentlog,
+  xo-cmake,
+
+  buildDocs ? false,
+  doCheck ? true,
+} :
+
+stdenv.mkDerivation (finalattrs:
+  {
+    name = "xo-gc";
+
+    src = ../xo-gc;
+
+    cmakeFlags = ["-DCMAKE_MODULE_PATH=${xo-cmake}/share/cmake"]
+                  ++ lib.optionals buildDocs ["-DXO_ENABLE_DOCS=on"]
+                  ++ lib.optionals doCheck ["-DENABLE_TESTING=1"];
+
+    inherit buildDocs;
+    inherit doCheck;
+
+    postBuild = lib.optionalString buildDocs ''
+      cmake --build . -- docs
+    '';
+
+    nativeBuildInputs = [
+      cmake catch2
+      xo-cmake
+      xo-randomgen
+    ] ++ lib.optionals buildDocs [
+      doxygen
+      sphinx
+      graphviz
+      python3Packages.sphinx-rtd-theme
+      python3Packages.breathe
+      python3Packages.sphinxcontrib-ditaa
+      python3Packages.sphinxcontrib-plantuml
+      python3Packages.pillow
+    ];
+    propagatedBuildInputs = [
+      xo-alloc2
+      xo-facet
+      xo-subsys
+#      xo-reflectutil
+#      xo-indentlog
+    ];
+  })

xo-alloc2/cmake/xo_alloc2Config.cmake.in

@@ -2,7 +2,7 @@
 
 include(CMakeFindDependencyMacro)
 #find_dependency(indentlog)
-find_depnedency(xo_arena)
+find_dependency(xo_arena)
 find_dependency(xo_facet)
 include("${CMAKE_CURRENT_LIST_DIR}/@PROJECT_NAME@Targets.cmake")
 check_required_components("@PROJECT_NAME@")

xo-gc/CMakeLists.txt

@@ -41,6 +41,6 @@ xo_export_cmake_config(${PROJECT_NAME} ${PROJECT_VERSION} ${PROJECT_NAME}Targets
 # docs targets depend on other library/utest/exec targets above,
 # --> must come after them.
 #
-#add_subdirectory(docs)
+add_subdirectory(docs)
 
 # end CMakeLists.txt

xo-gc/cmake/xo_gcConfig.cmake.in

@@ -3,6 +3,7 @@
 include(CMakeFindDependencyMacro)
 find_dependency(xo_alloc2)
 find_dependency(xo_facet)
+find_dependency(subsys)
 find_dependency(indentlog)
 
 include("${CMAKE_CURRENT_LIST_DIR}/@PROJECT_NAME@Targets.cmake")

xo-gc/docs/_static/README

@@ -0,0 +1 @@
+add any static {.html, .js, ..} files for sphinx to pickup here

xo-gc/docs/conf.py

@@ -0,0 +1,39 @@
+# Configuration file for the Sphinx documentation builder.
+#
+# For the full list of built-in configuration values, see the documentation:
+# https://www.sphinx-doc.org/en/master/usage/configuration.html
+
+# -- Project information -----------------------------------------------------
+# https://www.sphinx-doc.org/en/master/usage/configuration.html#project-information
+
+project = 'xo gc documentation'
+copyright = '2026, Roland Conybeare'
+author = 'Roland Conybeare'
+
+# -- General configuration ---------------------------------------------------
+# https://www.sphinx-doc.org/en/master/usage/configuration.html#general-configuration
+
+#extensions = []
+extensions = [ "breathe",
+               "sphinx.ext.mathjax",     # inline math
+               "sphinx.ext.autodoc",     # generate info from docstrings
+               "sphinxcontrib.ditaa",    # diagrams-through-ascii-art
+               "sphinxcontrib.plantuml"  # text -> uml diagrams
+              ]
+
+# note: breathe requires doxygen xml output -> must have GENERATE_XML = YES in Doxyfile.in
+#       match project name in Doxyfile.in
+breathe_default_project = "xodoxxml"
+
+templates_path = ['_templates']
+exclude_patterns = ['_build', 'Thumbs.db', '.DS_Store']
+
+pygments_style = 'sphinx'
+
+# -- Options for HTML output -------------------------------------------------
+# https://www.sphinx-doc.org/en/master/usage/configuration.html#options-for-html-output
+
+#html_theme = 'alabaster'
+html_theme = 'sphinx_rtd_theme'
+html_static_path = ['_static']
+html_favicon = '_static/img/favicon.ico'

xo-gc/src/gc/CMakeLists.txt

@@ -21,4 +21,5 @@ xo_add_shared_library4(${SELF_LIB} ${PROJECT_NAME}Targets ${PROJECT_VERSION} 1 $
 # note: deps here must also appear in cmake/xo_alloc2Config.cmake.in
 xo_dependency(${SELF_LIB} xo_alloc2)
 xo_dependency(${SELF_LIB} xo_facet)
+xo_dependency(${SELF_LIB} subsys)
 xo_dependency(${SELF_LIB} indentlog)