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, 30 insertions, 0 deletions

diff --git a/cmakeconfig/EolianCxxConfig.cmake.in b/cmakeconfig/EolianCxxConfig.cmake.in
new file mode 100644
index 0000000000..2f7101f0a7
--- /dev/null
+++ b/cmakeconfig/EolianCxxConfig.cmake.in
@@ -0,0 +1,30 @@
+# - Try to find eolian
+# Once done this will define
+#  EOLIAN_CXX_FOUND - System has eolian
+#  EOLIAN_CXX_INCLUDE_DIRS - The eolian include directories
+#  EOLIAN_CXX_LIBRARIES - The libraries needed to use eolian
+#  EOLIAN_CXX_DEFINITIONS - Compiler switches required for using eolian
+
+set(MY_PKG eolian_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_EOLIAN_CXX ${_QUIET} ${MY_PKG})
+find_library(EOLIAN_CXX_LIBRARY
+             NAMES ${PC_EOLIAN_CXX_LIBRARIES}
+             HINTS ${PC_EOLIAN_CXX_LIBDIR} ${PC_EOLIAN_CXX_LIBRARY_DIRS} )
+
+set(EOLIAN_CXX_DEFINITIONS ${PC_EOLIAN_CXX_CFLAGS_OTHER})
+set(EOLIAN_CXX_LIBRARIES ${EOLIAN_CXX_LIBRARY})
+set(EOLIAN_CXX_INCLUDE_DIRS ${PC_EOLIAN_CXX_INCLUDE_DIRS})
+
+include(FindPackageHandleStandardArgs)
+# handle the QUIETLY and REQUIRED arguments and set EOLIAN_CXX_FOUND to TRUE
+# if all listed variables are TRUE
+find_package_handle_standard_args(${MY_PKG} DEFAULT_MSG
+   EOLIAN_CXX_LIBRARIES EOLIAN_CXX_INCLUDE_DIRS)
+
+mark_as_advanced(EOLIAN_CXX_INCLUDE_DIRS EOLIAN_CXX_LIBRARY EOLIAN_CXX_LIBRARIES EOLIAN_CXX_DEFINITIONS)