Module: FFI::Library

Included in:
CPL::Conv, CPL::Error, CPL::HTTP, CPL::HashSet, CPL::List::ListFunctions::ClassMethods, CPL::MiniXML, CPL::Port, CPL::Progress, CPL::QuadTree, CPL::String, CPL::VSI, GDAL, GDAL::Alg, GDAL::GDAL, GDAL::Grid, GDAL::Matching, GDAL::Utils, GDAL::VRT, GDAL::Warper, OGR::API, OGR::Core, OGR::Featurestyle, OGR::Geocoding, OGR::SRSAPI, Rttopo
Defined in:
lib/ext/ffi_library_function_checks.rb

Overview

Redefining #attach_function so we can avoid bombing out if a called method is not defined.

Instance Method Summary collapse

Instance Method Details

#attach_function(*args) ⇒ Object 



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# File 'lib/ext/ffi_library_function_checks.rb', line 12

def attach_function(*args)
  old_attach_function(*args)
rescue FFI::NotFoundError
  @unsupported_gdal_functions ||= []

  if $VERBOSE || ENV.fetch("VERBOSE", nil)
    warn "ffi-gdal warning: function '#{args.first}' is not available in this " \
         "build of GDAL/OGR (v#{FFI::GDAL.GDALVersionInfo('RELEASE_NAME')})"
  end

  @unsupported_gdal_functions << args.first
end

#old_attach_function ⇒ Object 



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# File 'lib/ext/ffi_library_function_checks.rb', line 10

alias old_attach_function attach_function

#unsupported_gdal_functions ⇒ Object 



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# File 'lib/ext/ffi_library_function_checks.rb', line 25

def unsupported_gdal_functions
  @unsupported_gdal_functions ||= []
end