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#! /usr/bin/env ruby
# -*- coding: UTF-8 -*-
#
require 'efl/ffi/eina_hash'
#
class Hash
def self.from_eina_hash o
if o.is_a? Efl::EinaHash::REinaHash
o.to_h
elsif o.is_a? FFI::Pointer
Efl::EinaHash::REinaHash.new(o).to_h
else
raise ArgumentError.new " wrong argument #{o.class.name}"
end
end
end
module Efl
module EinaHash
#
class REinaHash
include Enumerable
include Efl::ClassHelper
@func_prefixes = [ [Efl::EinaHash,'eina_hash_'] ].freeze
def initialize o=nil, &block
cstr = ( block_given? ? block : Proc.new { Efl::EinaHash.eina_hash_string_djb2_new FFI::Pointer::NULL } )
@ptr = (
case o
when FFI::Pointer
( o==FFI::Pointer::NULL ? cstr.call : o )
when NilClass
cstr.call
when self.class
o.ptr
when Hash
ptr = cstr.call
o.each do |k,v| Efl::EinaHash.eina_hash_add ptr, k, v end
ptr
else
raise ArgumentError.new "#{ptr.class} valid argument"
end
)
end
def free
return if @ptr==FFI::Pointer::NULL
@ptr = Efl::EinaHash.eina_hash_free @ptr
end
def each data=FFI::Pointer::NULL, &block
return if not block_given?
Efl::EinaHash::eina_hash_foreach @ptr, Proc.new{|h,k,v,d| block.call(k,v) }, data
end
def to_h
rh = {}
each { |k,v| rh[k]=v; true }
rh
end
def to_h_conv &block
rh = {}
if block_given?
each { |k,v| rh[block.call(k)]=v; true }
else
each { |k,v| rh[k.read_string]=v; true }
end
rh
end
# for fun and tests
def add k, v
Efl::EinaHash.eina_hash_add @ptr, k, v
v
end
alias :[]= :add
def find k
r = Efl::EinaHash.eina_hash_find @ptr, k
return ( r==FFI::Pointer::NULL ? nil : r )
end
alias :[] :find
end
end
end
#
# EOF
|
