Squashed 'third_party/immer/' content from commit ad3e3556d

git-subtree-dir: third_party/immer
git-subtree-split: ad3e3556d38bb75966dd24c61a774970a7c7957e

4 files changed, 473 insertions, 0 deletions

diff --git a/cmake/FindBoehmGC.cmake b/cmake/FindBoehmGC.cmake
new file mode 100644
index 000000000000..bdb7240e6d8c
--- /dev/null
+++ b/cmake/FindBoehmGC.cmake
@@ -0,0 +1,108 @@
+# - Try to find Boehm GC
+#   Once done, this will define
+#
+#   BOEHM_GC_FOUND - system has Boehm GC
+#   BOEHM_GC_INCLUDE_DIR - the Boehm GC include directories
+#   BOEHM_GC_LIBRARIES - link these to use Boehm GC
+# 
+#   Copyright (c) 2010-2015  Takashi Kato <ktakashi@ymail.com>
+# 
+#   Redistribution and use in source and binary forms, with or without
+#   modification, are permitted provided that the following conditions
+#   are met:
+# 
+#   1. Redistributions of source code must retain the above copyright
+#      notice, this list of conditions and the following disclaimer.
+# 
+#   2. Redistributions in binary form must reproduce the above copyright
+#      notice, this list of conditions and the following disclaimer in the
+#      documentation and/or other materials provided with the distribution.
+# 
+#   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+#   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+#   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+#   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+#   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+#   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
+#   TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+#   PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+#   LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+#   NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+#   SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+# 
+#  $Id: $
+# 
+
+# CMake module to find Boehm GC
+
+# use pkg-config if available
+FIND_PACKAGE(PkgConfig)
+PKG_CHECK_MODULES(PC_BDW_GC QUIET bdw-gc)
+
+# try newer one first in case of gc.h is overwritten.
+FIND_PATH(BOEHM_GC_INCLUDE_DIR gc/gc.h
+  HINTS ${PC_BDW_GC_INCLUDEDIR} ${PC_BDW_GC_INCLUDE_DIRS})
+
+IF (NOT BOEHM_GC_INCLUDE_DIR)
+  FIND_PATH(BOEHM_GC_INCLUDE_DIR gc.h
+    HINTS ${PC_BDW_GC_INCLUDEDIR} ${PC_BDW_GC_INCLUDE_DIRS})
+  IF (BOEHM_GC_INCLUDE_DIR)
+    SET(HAVE_GC_H TRUE)
+  ENDIF()
+ELSE()
+  SET(HAVE_GC_GC_H TRUE)
+ENDIF()
+
+# For FreeBSD we need to use gc-threaded
+IF (${CMAKE_SYSTEM_NAME} STREQUAL "FreeBSD")
+  # checks if 'gc' supports 'GC_get_parallel' and if it does
+  # then use it
+  INCLUDE(${CMAKE_ROOT}/Modules/CheckCSourceCompiles.cmake)
+  # not sure if this links properly...
+  FIND_LIBRARY(BOEHM_GC_LIBRARIES NAMES gc
+    HINTS ${PC_BDW_GC_LIBDIR} ${PC_BDW_GC_LIBRARY_DIRS})
+  MESSAGE(STATUS "GC library ${BOEHM_GC_LIBRARIES}")
+  SET(CMAKE_REQUIRED_LIBRARIES "gc")
+  SET(CMAKE_REQUIRED_DEFINITIONS "-DGC_THREADS")
+  SET(CMAKE_REQUIRED_INCLUDES "${BOEHM_GC_INCLUDE_DIR}")
+  SET(CMAKE_REQUIRED_FLAGS "-L${PC_BDW_GC_LIBRARY_DIRS}")
+  MESSAGE(STATUS "Boehm GC include dir: ${CMAKE_REQUIRED_INCLUDES}")
+  CHECK_C_SOURCE_RUNS(
+    "#include <gc.h>
+int main() {
+int i= GC_get_parallel();
+return 0;
+}
+" GC_GET_PARALLEL_WORKS)
+  IF (NOT GC_GET_PARALLEL_WORKS)
+    MESSAGE(STATUS "Try gc-threaded")
+
+    # bdw-gc-threaded is the proper name for FreeBSD pkg-config
+    PKG_CHECK_MODULES(PC_BDW_GC_THREADED bdw-gc-threaded)
+    FIND_LIBRARY(BOEHM_GC_THREADED_LIBRARIES NAMES gc-threaded
+      HINTS ${PC_BDW_GC_THREADED_LIBDIR} ${PC_BDW_GC_THREADED_THREADED_DIRS})
+
+    MESSAGE(STATUS "GC threaded library ${BOEHM_GC_THREADED_LIBRARIES}")
+    IF (BOEHM_GC_THREADED_LIBRARIES)
+      # OK just use it
+      SET(BOEHM_GC_LIBRARIES "${BOEHM_GC_THREADED_LIBRARIES}")
+    ENDIF()
+  ENDIF()
+ELSE()
+  FIND_LIBRARY(BOEHM_GC_LIBRARIES NAMES gc
+    HINTS ${PC_BDW_GC_LIBDIR} ${PC_BDW_GC_LIBRARY_DIRS})
+  # OpenSolaris uses bgc as Boehm GC runtime in its package manager.
+  # so try it
+  IF (NOT BOEHM_GC_LIBRARIES)
+    FIND_LIBRARY(BOEHM_GC_LIBRARIES NAMES bgc
+      HINTS ${PC_BDW_GC_LIBDIR} ${PC_BDW_GC_LIBRARY_DIRS})
+  ENDIF()
+ENDIF()
+
+MESSAGE(STATUS "Found GC library: ${BOEHM_GC_LIBRARIES}")
+
+INCLUDE(FindPackageHandleStandardArgs)
+FIND_PACKAGE_HANDLE_STANDARD_ARGS(Boehm_GC DEFAULT_MSG
+                                  BOEHM_GC_LIBRARIES BOEHM_GC_INCLUDE_DIR)
+
+MARK_AS_ADVANCED(BOEHM_GC_LIBRARIES BOEHM_GC_INCLUDE_DIR)
diff --git a/cmake/FindGuile.cmake b/cmake/FindGuile.cmake
new file mode 100644
index 000000000000..2b8781c48f48
--- /dev/null
+++ b/cmake/FindGuile.cmake
@@ -0,0 +1,326 @@
+#[[.rst
+#
+# FindGuile
+# ---------
+# Find the development libraries for Guile.
+#
+# Exported Vars
+# ~~~~~~~~~~~~~
+#
+# .. variable:: Guile_FOUND
+#
+#    Set to *true* if Guile was found.
+#
+# .. variable:: Guile_INCLUDE_DIRS
+#
+#    A list of include directories.
+#
+# .. variable:: Guile_LIBRARIES
+#
+#    A list of libraries needed to build you project.
+#
+# .. variable:: Guile_VERSION_STRING
+#
+#    Guile full version.
+#
+# .. variable:: Guile_VERSION_MAJOR
+#
+#    Guile major version.
+#
+# .. variable:: Guile_VERSION_MINOR
+#
+#    Guile minor version.
+#
+# .. variable:: Guile_VERSION_PATCH
+#
+#    Guile patch version.
+#
+# .. variable:: Guile_EXECUTABLE
+#
+#    Guile executable (optional).
+#
+# .. variable:: Guile_CONFIG_EXECUTABLE
+#
+#    Guile configuration executable (optional).
+#
+# .. variable:: Guile_ROOT_DIR
+#
+#    Guile installation root dir (optional).
+#
+# .. variable:: Guile_SITE_DIR
+#
+#    Guile installation module site dir (optional).
+#
+# .. variable:: Guile_EXTENSION_DIR
+#
+#    Guile installation extension dir (optional).
+#
+# Control VARS
+# ~~~~~~~~~~~~
+# :envvar:`Guile_ROOT_DIR`
+#
+#   Use this variable to provide hints to :filename:`find_{*}` commands,
+#   you may pass it to :command:`cmake` or set the environtment variable.
+#
+# .. code-block:: cmake
+#
+#    % cmake . -Bbuild -DGuile_ROOT_DIR=<extra-path>
+#
+#    # or
+#    % export Guile_ROOT_DIR=<extra-path>;
+#    % cmake . -Bbuild
+#
+#    # or
+#    % Guile_ROOT_DIR=<extra-path> cmake . -Bbuild
+#
+#
+#]]
+
+
+#[[.rst
+#
+# Copyright © 2016, Edelcides Gonçalves <eatg75 |0x40| gmail>
+#
+# Permission to use, copy, modify, and/or distribute this software for
+# any purpose with or without fee is hereby granted, provided that the
+# above copyright notice and this permission notice appear in all
+# copies.
+#
+# *THE SOFTWARE IS PROVIDED* **AS IS** *AND ISC DISCLAIMS ALL
+# WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
+# WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL ISC BE
+# LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES
+# OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
+# PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+# TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+# PERFORMANCE OF THIS SOFTWARE*.
+#
+# This file is not part of CMake
+#
+#]]
+
+
+include (SelectLibraryConfigurations)
+include (FindPackageHandleStandardArgs)
+
+function (_guile_find_component_include_dir component header)
+  find_path ("${component}_INCLUDE_DIR"
+    ${header}
+    HINTS
+    "${GUile_ROOT_DIR}"
+    ENV Guile_ROOT_DIR
+    PATH_SUFFIXES
+    Guile guile Guile-2.0 guile-2.0 Guile/2.0 guile/2.0 GC
+    gc)
+
+  set ("${component}_INCLUDE_DIR" "${${component}_INCLUDE_DIR}"
+    PARENT_SCOPE)
+endfunction ()
+
+function (_guile_find_component_library component_name component)
+
+  find_library ("${component_name}_LIBRARY_RELEASE"
+    NAMES "${component}" "${component}-2.0"
+    HINTS
+    "${GUile_ROOT_DIR}"
+    ENV Guile_ROOT_DIR
+    PATHS
+    /usr/lib/${CMAKE_LIBRARY_ARCHITECTURE}
+    /usr/lib64/${CMAKE_LIBRARY_ARCHITECTURE}
+    /usr/lib32/${CMAKE_LIBRARY_ARCHITECTURE})
+
+  if  (${component_name}_LIBRARY_RELEASE)
+    select_library_configurations (${component_name})
+    set ("${component_name}_LIBRARY_RELEASE"
+      "${${component_name}_LIBRARY_RELEASE}" PARENT_SCOPE)
+    set ("${component_name}_LIBRARY"
+      "${${component_name}_LIBRARY}" PARENT_SCOPE)
+    set ("${component_name}_LIBRARIES"
+      "${${component_name}_LIBRARIES}" PARENT_SCOPE)
+  endif ()
+endfunction ()
+
+function (_guile_find_version_2 header_file macro_name)
+  file (STRINGS "${header_file}" _VERSION
+    REGEX "#define[\t ]+${macro_name}[\t ]+[0-9]+")
+
+  if (_VERSION)
+    string (REGEX REPLACE
+      ".*#define[\t ]+${macro_name}[\t ]+([0-9]+).*"
+      "\\1" _VERSION_VALUE "${_VERSION}")
+    if ("${_VERSION}" STREQUAL "${_VERSION_VALUE}")
+      set (_VERSION_FOUND 0 PARENT_SCOPE)
+    else ()
+      set (_VERSION_FOUND 1 PARENT_SCOPE)
+      set (_VERSION "${_VERSION_VALUE}" PARENT_SCOPE)
+    endif ()
+  else ()
+    set (_VERSION_FOUND 0 PARENT_SCOPE)
+  endif ()
+endfunction ()
+
+
+##### Entry Point #####
+
+set (Guile_FOUND)
+set (Guile_INCLUDE_DIRS)
+set (Guile_LIBRARIES)
+set (Guile_VERSION_STRING)
+set (Guile_VERSION_MAJOR)
+set (Guile_VERSION_MINOR)
+set (Guile_VERSION_PATCH)
+set (Guile_EXECUTABLE)
+
+_guile_find_component_include_dir (Guile "libguile.h")
+if (Guile_INCLUDE_DIR)
+  _guile_find_version_2 ("${Guile_INCLUDE_DIR}/libguile/version.h"
+    SCM_MAJOR_VERSION)
+  if (_VERSION_FOUND)
+    set (Guile_VERSION_MAJOR "${_VERSION}")
+  else ()
+    message (FATAL_ERROR "FindGuile: Failed to find Guile_MAJOR_VERSION.")
+  endif ()
+
+  _guile_find_version_2 ("${Guile_INCLUDE_DIR}/libguile/version.h"
+    SCM_MINOR_VERSION)
+  if (_VERSION_FOUND)
+    set (Guile_VERSION_MINOR "${_VERSION}")
+  else ()
+    message (FATAL_ERROR "FindGuile: Failed to find Guile_MINOR_VERSION.")
+  endif ()
+
+  _guile_find_version_2 ("${Guile_INCLUDE_DIR}/libguile/version.h"
+    SCM_MICRO_VERSION)
+  if (_VERSION_FOUND)
+    set (Guile_VERSION_PATCH "${_VERSION}")
+  else ()
+    message (FATAL_ERROR "FindGuile: Failed to find Guile_MICRO_VERSION.")
+  endif ()
+  set (Guile_VERSION_STRING "${Guile_VERSION_MAJOR}.${Guile_VERSION_MINOR}.${Guile_VERSION_PATCH}")
+
+  unset (_VERSION_FOUND)
+  unset (_VERSION)
+endif ()
+
+_guile_find_component_include_dir (Guile_GC "gc.h")
+_guile_find_component_library (Guile guile)
+_guile_find_component_library (Guile_GC gc)
+
+find_program (Guile_EXECUTABLE
+  guile
+  DOC "Guile executable.")
+
+if (Guile_EXECUTABLE)
+  execute_process (COMMAND ${Guile_EXECUTABLE} --version
+    RESULT_VARIABLE _status
+    OUTPUT_VARIABLE _output
+    OUTPUT_STRIP_TRAILING_WHITESPACE)
+
+  string (REGEX REPLACE ".*\\(GNU Guile\\)[\t ]+([0-9]+)\\..*" "\\1"
+    _guile_ver_major "${_output}")
+
+  string (REGEX REPLACE ".*\\(GNU Guile\\)[\t ]+[0-9]+\\.([0-9]+).*" "\\1"
+    _guile_ver_minor "${_output}")
+
+  string (REGEX REPLACE ".*\\(GNU Guile\\)[\t ]+[0-9]+\\.[0-9]+\\.([0-9]+).*" "\\1"
+    _guile_ver_patch "${_output}")
+
+  set (_version "${_guile_ver_major}.${_guile_ver_minor}.${_guile_ver_patch}")
+
+  if (NOT Guile_FIND_QUIETLY)
+    if (NOT Guile_VERSION_STRING STREQUAL _version)
+      message (WARNING "FindGuile: Versions provided by library differs from the one provided by executable.")
+    endif ()
+
+    if (NOT _status STREQUAL "0")
+      message (WARNING "FindGuile: guile (1) process exited abnormally.")
+    endif ()
+  endif ()
+
+  unset (_version)
+  unset (_status)
+  unset (_version)
+  unset (_guile_ver_major)
+  unset (_guile_ver_minor)
+  unset (_guile_ver_patch)
+endif ()
+
+find_package_handle_standard_args (GC
+  "FindGuile: Failed to find dependency GC."
+  Guile_GC_INCLUDE_DIR
+  Guile_GC_LIBRARY
+  Guile_GC_LIBRARIES
+  Guile_GC_LIBRARY_RELEASE)
+
+find_package_handle_standard_args (Guile
+  REQUIRED_VARS
+  Guile_INCLUDE_DIR
+  Guile_LIBRARY
+  Guile_LIBRARIES
+  Guile_LIBRARY_RELEASE
+  GC_FOUND
+  VERSION_VAR Guile_VERSION_STRING)
+
+if (Guile_FOUND)
+  list (APPEND Guile_INCLUDE_DIRS "${Guile_INCLUDE_DIR}"
+    "${Guile_GC_INCLUDE_DIR}")
+
+  if (NOT TARGET Guile::Library AND NOT TARGET GC::Library)
+    add_library (Guile::GC::Library UNKNOWN IMPORTED)
+    set_property (TARGET Guile::GC::Library APPEND
+      PROPERTY IMPORTED_CONFIGURATIONS RELEASE)
+
+    set_target_properties (Guile::GC::Library
+      PROPERTIES
+      INTERFACE_INCLUDE_DIRS
+      "${Guile_GC_INCLUDE_DIR}"
+      IMPORTED_LOCATION
+      "${Guile_GC_LIBRARY}"
+      IMPORTED_LOCATION_RELEASE
+      "${Guile_GC_LIBRARY_RELEASE}")
+
+    add_library (Guile::Library UNKNOWN IMPORTED)
+    set_property (TARGET Guile::Library APPEND
+      PROPERTY IMPORTED_CONFIGURATIONS RELEASE)
+    set_property (TARGET Guile::Library APPEND
+      PROPERTY
+      INTERFACE_LINK_LIBRARIES
+      Guile::GC::Library)
+
+    set_target_properties (Guile::Library
+      PROPERTIES
+      INTERFACE_INCLUDE_DIRSr
+      "${Guile_INCLUDE_DIR}"
+      IMPORTED_LOCATION "${Guile_LIBRARY}"
+      IMPORTED_LOCATION_RELEASE
+      "${Guile_LIBRARY_RELEASE}")
+
+    set (Guile_LIBRARIES Guile::Library Guile::GC::Library)
+  endif ()
+endif ()
+
+find_program(Guile_CONFIG_EXECUTABLE
+  NAMES guile-config
+  DOC "Guile configutration binary")
+
+if (Guile_CONFIG_EXECUTABLE)
+  execute_process (COMMAND ${Guile_CONFIG_EXECUTABLE} info prefix
+    OUTPUT_VARIABLE Guile_ROOT_DIR
+    OUTPUT_STRIP_TRAILING_WHITESPACE)
+
+  execute_process (COMMAND ${Guile_CONFIG_EXECUTABLE} info sitedir
+    OUTPUT_VARIABLE Guile_SITE_DIR
+    OUTPUT_STRIP_TRAILING_WHITESPACE)
+
+  execute_process (COMMAND ${Guile_CONFIG_EXECUTABLE} info extensiondir
+    OUTPUT_VARIABLE Guile_EXTENSION_DIR
+    OUTPUT_STRIP_TRAILING_WHITESPACE)
+endif ()
+
+mark_as_advanced (Guile_EXECUTABLE
+  Guile_INCLUDE_DIR
+  Guile_LIBRARY
+  Guile_LIBRARY_RELEASE
+  Guile_GC_INCLUDE_DIR
+  Guile_GC_LIBRARY
+  Guile_GC_LIBRARY_RELEASE)
diff --git a/cmake/FindRRB.cmake b/cmake/FindRRB.cmake
new file mode 100644
index 000000000000..86b552f86e43
--- /dev/null
+++ b/cmake/FindRRB.cmake
@@ -0,0 +1,15 @@
+# - Try to find c-rrb
+# Once done, this will define
+#
+#  RRB_FOUND - system has RRB
+#  RRB_INCLUDE_DIR - the RRB include directories
+#  RRB_LIBRARIES - link these to use RRB
+
+find_path(RRB_INCLUDE_DIR rrb.h)
+find_library(RRB_LIBRARIES NAMES rrb librrb)
+
+include(FindPackageHandleStandardArgs)
+find_package_handle_standard_args(
+  RRB DEFAULT_MSG RRB_LIBRARIES RRB_INCLUDE_DIR)
+
+mark_as_advanced(RRB_INCLUDE_DIR RRB_LIBRARIES)
diff --git a/cmake/ImmerUtils.cmake b/cmake/ImmerUtils.cmake
new file mode 100644
index 000000000000..2af63ff6061d
--- /dev/null
+++ b/cmake/ImmerUtils.cmake
@@ -0,0 +1,24 @@
+
+function(immer_target_name_for out_target out_file file)
+  get_filename_component(_extension ${_file} EXT)
+
+  file(RELATIVE_PATH _relative ${PROJECT_SOURCE_DIR} ${file})
+  string(REPLACE "${_extension}" "" _name ${_relative})
+  string(REGEX REPLACE "/" "-" _name ${_name})
+  set(${out_target} "${_name}" PARENT_SCOPE)
+
+  file(RELATIVE_PATH _relative ${CMAKE_CURRENT_LIST_DIR} ${file})
+  string(REPLACE "${_extension}" "" _name ${_relative})
+  string(REGEX REPLACE "/" "-" _name ${_name})
+  set(${out_file} "${_name}" PARENT_SCOPE)
+endfunction()
+
+function(immer_canonicalize_cmake_booleans)
+  foreach(var ${ARGN})
+    if(${var})
+      set(${var} 1 PARENT_SCOPE)
+    else()
+      set(${var} 0 PARENT_SCOPE)
+    endif()
+  endforeach()
+endfunction()