* ext/dl/lib/dl/struct.rb (DL::CUnionEntity::size): Fixed ::size to

return the size of the union.
* test/dl/test_c_union_entity.rb:  Test for DL::CUnionEntity::size

Reviewed by Aaron Patterson


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@35848 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
drbrain 2012-05-30 23:20:29 +00:00
Родитель e88c8880b1
Коммит f1cb6ea08f
3 изменённых файлов: 27 добавлений и 11 удалений

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@ -1,3 +1,9 @@
Thu May 31 08:20:14 2012 Eric Hodel <drbrain@segment7.net>
* ext/dl/lib/dl/struct.rb (DL::CUnionEntity::size): Fixed ::size to
return the size of the union.
* test/dl/test_c_union_entity.rb: Test for DL::CUnionEntity::size
Thu May 31 07:45:43 2012 Eric Hodel <drbrain@segment7.net>
* ext/dl: Added documentation. Patch by Vincent Batts.

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@ -234,17 +234,9 @@ module DL
# DL::TYPE_VOIDP])
# => 8
def CUnionEntity.size(types)
size = 0
types.each_with_index{|t,i|
if( t.is_a?(Array) )
tsize = PackInfo::SIZE_MAP[t[0]] * t[1]
else
tsize = PackInfo::SIZE_MAP[t]
end
if( tsize > size )
size = tsize
end
}
types.map { |type, count = 1|
PackInfo::SIZE_MAP[type] * count
}.max
end
# Given +types+, calculate the necessary offset and for each union member

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@ -0,0 +1,18 @@
require_relative 'test_base'
require 'dl/cparser'
class DL::TestCUnionEntity < DL::TestBase
def test_class_size
size = DL::CUnionEntity.size([DL::TYPE_DOUBLE, DL::TYPE_CHAR])
assert_equal DL::SIZEOF_DOUBLE, size
end
def test_class_size_with_count
size = DL::CUnionEntity.size([[DL::TYPE_DOUBLE, 2], [DL::TYPE_CHAR, 20]])
assert_equal DL::SIZEOF_CHAR * 20, size
end
end