eolian_cxx: initial version of the EFL C++ Bindings Generator.

Summary:
This patch adds 'eolian_cxx' -- a C++ bindings generator --
to the EFL tree. Eolian Cxx uses Eolian API to read .eo files and generate
.eo.hh. It relies/depends on Eo Cxx and Eina Cxx (both non-generated
bindings).

src/bin/eolian_cxx: The eolian_cxx program.
src/lib/eolian_cxx: A header-only library that implements the C++ code
generation that binds the .eo classes.

=Examples=

src/examples/eolian_cxx/eolian_cxx_simple_01.cc: The simplest example,
it just uses some "dummy" generated C++ classes.

src/examples/eolian_cxx/eolian_cxx_inherit_01.cc: Illustrates how
pure C++ classes inherit from .eo generated classes.

src/examples/evas/evas_cxx_rectangle.cc: More realistic example using
the generated bindings Evas Cxx. Still a bit shallow because we don't
have full fledged .eo descriptions yet, but will be improved.

=Important=

The generated code is not supported and not a stable API/ABI. It is
here to gather people interest and get review before we set things in
stone for release 1.11.

@feature

Reviewers: cedric, smohanty, raster, stefan_schmidt

CC: felipealmeida, JackDanielZ, cedric, stefan

Differential Revision: https://phab.enlightenment.org/D805

Signed-off-by: Cedric Bail <cedric.bail@free.fr>

1 files changed, 66 insertions, 0 deletions

diff --git a/cmakeconfig/EcoreCxxConfig.cmake.in b/cmakeconfig/EcoreCxxConfig.cmake.in
new file mode 100644
index 0000000000..4dcd580286
--- /dev/null
+++ b/cmakeconfig/EcoreCxxConfig.cmake.in
@@ -0,0 +1,66 @@
+# - Try to find ecore_cxx
+# Once done this will define
+#
+#  ECORE_CXX_FOUND - System has ecore_cxx
+#  ECORE_CXX_INCLUDE_DIRS - The ecore_cxx include directories
+#  ECORE_CXX_LIBRARIES - The libraries needed to use ecore_cxx
+#  ECORE_CXX_DEFINITIONS - Compiler switches required for using ecore_cxx
+#
+# When the COMPONENTS keyword was passed to find_package(),
+# the following variables are defined for additional Ecore_Cxx modules
+# such as Evas, X, Imf, Imf_Evas.
+#
+#  ECORE_CXX_*_FOUND        - System has ecore_cxx *
+#  ECORE_CXX_*_INCLUDE_DIRS - The ecore_cxx include directories
+#  ECORE_CXX_*_LIBRARIES    - The libraries needed to use ecore_cxx
+#  ECORE_CXX_*_DEFINITIONS  - Compiler switches required for using ecore_cxx * module.
+
+set(MY_PKG ecore_cxx)
+
+find_package(PkgConfig)
+if ("${CMAKE_MAJOR_VERSION}.${CMAKE_MINOR_VERSION}.${CMAKE_PATCH_VERSION}" VERSION_GREATER "2.8.1")
+   # "QUIET" was introduced in 2.8.2
+   set(_QUIET QUIET)
+endif ()
+pkg_check_modules(PC_LIBECORE_CXX ${_QUIET} ${MY_PKG})
+
+find_library(ECORE_CXX_LIBRARY
+             NAMES ${PC_LIBECORE_CXX_LIBRARIES}
+             HINTS ${PC_LIBECORE_CXX_LIBDIR} ${PC_LIBECORE_CXX_LIBRARY_DIRS} )
+
+set(ECORE_CXX_DEFINITIONS ${PC_LIBECORE_CXX_CFLAGS_OTHER})
+set(ECORE_CXX_LIBRARIES ${ECORE_CXX_LIBRARY})
+set(ECORE_CXX_INCLUDE_DIRS ${PC_LIBECORE_CXX_INCLUDE_DIRS})
+
+include(FindPackageHandleStandardArgs)
+# handle the QUIETLY and REQUIRED arguments and set ECORE_CXX_FOUND to TRUE
+# if all listed variables are TRUE
+find_package_handle_standard_args(${MY_PKG} DEFAULT_MSG
+   ECORE_CXX_LIBRARIES ECORE_CXX_INCLUDE_DIRS)
+
+mark_as_advanced(ECORE_CXX_INCLUDE_DIRS ECORE_CXX_LIBRARY ECORE_CXX_LIBRARIES ECORE_CXX_DEFINITIONS)
+
+if (Ecore_Cxx_FIND_COMPONENTS)
+   foreach(_component ${Ecore_Cxx_FIND_COMPONENTS})
+      string(TOUPPER ${_component} _COMPONENT)
+      string(TOLOWER ${_component} _component)
+      string(REGEX REPLACE "_" "-" _MODULE_PKGNAME "ecore_cxx-${_component}")
+
+      pkg_check_modules(PC_LIBECORE_CXX_${_COMPONENT} ${_QUIET} ${_MODULE_PKGNAME})
+
+      find_library(ECORE_CXX_${_COMPONENT}_LIBRARY
+         NAMES ${PC_LIBECORE_CXX_${_COMPONENT}_LIBRARIES}
+         HINTS ${PC_LIBECORE_CXX_${_COMPONENT}_LIBDIR}
+               ${PC_LIBECORE_CXX_${_COMPONENT}_LIBRARY_DIRS})
+
+      set(ECORE_CXX_${_COMPONENT}_DEFINITIONS ${PC_LIBECORE_CXX_${_COMPONENT}_CFLAGS_OTHER})
+      set(ECORE_CXX_${_COMPONENT}_LIBRARIES ${ECORE_CXX_${_COMPONENT}_LIBRARY})
+      set(ECORE_CXX_${_COMPONENT}_INCLUDE_DIRS ${PC_LIBECORE_CXX_${_COMPONENT}_INCLUDE_DIRS})
+
+      include(FindPackageHandleStandardArgs)
+      # handle the QUIETLY and REQUIRED arguments and set ECORE_CXX_*_FOUND to TRUE
+      # if all listed variables are TRUE
+      find_package_handle_standard_args(ecore_cxx_${_component} DEFAULT_MSG
+         ECORE_CXX_${_COMPONENT}_LIBRARIES ECORE_CXX_${_COMPONENT}_INCLUDE_DIRS)
+   endforeach(_component)
+endif(Ecore_Cxx_FIND_COMPONENTS)